/* ===================================
   CSS VARIABLES - Design Tokens
   Clean & Minimal Design System
   =================================== */

:root {
    /* ========== COLOR PALETTE ========== */
    /* Primary Colors */
    --primary: #2563eb;        /* Modern Blue */
    --primary-dark: #1e40af;
    --primary-light: #60a5fa;

    /* Secondary Colors */
    --secondary: #8b5cf6;      /* Purple Accent */
    --accent: #06b6d4;         /* Cyan Fresh */

    /* Neutral Colors */
    --dark: #0f172a;           /* Slate Dark */
    --dark-light: #1e293b;
    --gray: #475569;
    --gray-light: #cbd5e1;
    --gray-lighter: #f1f5f9;
    --white: #ffffff;

    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* ========== TYPOGRAPHY ========== */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-display: 'Inter', var(--font-primary);

    /* Font Sizes */
    --text-xs: 0.75rem;        /* 12px */
    --text-sm: 0.875rem;       /* 14px */
    --text-base: 1rem;         /* 16px */
    --text-lg: 1.125rem;       /* 18px */
    --text-xl: 1.25rem;        /* 20px */
    --text-2xl: 1.5rem;        /* 24px */
    --text-3xl: 1.875rem;      /* 30px */
    --text-4xl: 2.25rem;       /* 36px */
    --text-5xl: 3rem;          /* 48px */

    /* Font Weights */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;

    /* Line Heights */
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;

    /* ========== SPACING SYSTEM ========== */
    --spacing-xs: 0.5rem;      /* 8px */
    --spacing-sm: 1rem;        /* 16px */
    --spacing-md: 2rem;        /* 32px */
    --spacing-lg: 4rem;        /* 64px */
    --spacing-xl: 6rem;        /* 96px */
    --spacing-2xl: 8rem;       /* 128px */

    /* ========== BORDER RADIUS ========== */
    --radius-sm: 0.5rem;       /* 8px */
    --radius-md: 1rem;         /* 16px */
    --radius-lg: 1.5rem;       /* 24px */
    --radius-xl: 2rem;         /* 32px */
    --radius-full: 9999px;     /* Full circle */

    /* ========== SHADOWS ========== */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

    /* ========== TRANSITIONS ========== */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;

    /* Timing Functions */
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

    /* ========== Z-INDEX LAYERS ========== */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;

    /* ========== BREAKPOINTS (for JS) ========== */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;

    /* ========== LAYOUT ========== */
    --container-max-width: 1200px;
    --header-height: 70px;
    --footer-height: auto;
}

/* Dark Mode Variables (for future use) */
@media (prefers-color-scheme: dark) {
    :root {
        /* Can be activated when dark mode is implemented */
    }
}

/* ===================================
   CSS RESET & NORMALIZE
   Modern CSS Reset for Cross-Browser Consistency
   =================================== */

/* ========== Box Sizing ========== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ========== HTML & Body ========== */
html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    min-height: 100vh;
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--dark);
    background-color: var(--white);
    overflow-x: hidden;
}

/* ========== Typography Reset ========== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    margin: 0;
    padding: 0;
}

p, ul, ol, li {
    margin: 0;
    padding: 0;
}

/* ========== Links ========== */
a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-base);
    cursor: pointer;
}

a:hover {
    color: var(--primary-dark);
}

a:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ========== Lists ========== */
ul, ol {
    list-style: none;
}

/* ========== Images & Media ========== */
img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
    height: auto;
}

img {
    border-style: none;
}

/* ========== Forms ========== */
input, button, textarea, select {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: inherit;
}

button {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
}

button:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

textarea {
    resize: vertical;
}

input:focus, textarea:focus, select:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Remove default browser styling */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
}

/* ========== Tables ========== */
table {
    border-collapse: collapse;
    border-spacing: 0;
}

/* ========== Accessibility ========== */
/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ========== Selection ========== */
::selection {
    background-color: var(--primary-light);
    color: var(--white);
}

::-moz-selection {
    background-color: var(--primary-light);
    color: var(--white);
}

/* ========== Scrollbar Styling (Webkit) ========== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--gray-lighter);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-light);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray);
}

/* ========== Focus Visible Polyfill ========== */
:focus:not(:focus-visible) {
    outline: none;
}

/* ===================================
   TYPOGRAPHY SYSTEM
   Responsive Typography with Fluid Sizing
   =================================== */

/* ========== Headings ========== */
h1, .h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: var(--font-extrabold);
    line-height: var(--leading-tight);
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
}

h2, .h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    letter-spacing: -0.01em;
    margin-bottom: var(--spacing-sm);
}

h3, .h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: var(--font-bold);
    line-height: var(--leading-snug);
    margin-bottom: var(--spacing-sm);
}

h4, .h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    font-weight: var(--font-semibold);
    line-height: var(--leading-snug);
    margin-bottom: var(--spacing-xs);
}

h5, .h5 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    line-height: var(--leading-normal);
    margin-bottom: var(--spacing-xs);
}

h6, .h6 {
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
    line-height: var(--leading-normal);
    margin-bottom: var(--spacing-xs);
}

/* ========== Paragraphs ========== */
p {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--spacing-sm);
    color: var(--dark);
}

p.lead {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: var(--gray);
}

p.small {
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
}

/* ========== Text Utilities ========== */
.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.text-4xl { font-size: var(--text-4xl); }
.text-5xl { font-size: var(--text-5xl); }

/* Font Weights */
.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }
.font-extrabold { font-weight: var(--font-extrabold); }

/* Text Colors */
.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-dark { color: var(--dark); }
.text-gray { color: var(--gray); }
.text-white { color: var(--white); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-error { color: var(--error); }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-justify { text-align: justify; }

/* ========== Gradient Text ========== */
.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

/* ========== Text Effects ========== */
.text-uppercase { text-transform: uppercase; }
.text-lowercase { text-transform: lowercase; }
.text-capitalize { text-transform: capitalize; }

.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.text-wrap { white-space: normal; }
.text-nowrap { white-space: nowrap; }

/* ========== Links ========== */
.link {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color var(--transition-base);
}

.link:hover {
    color: var(--primary-dark);
}

.link-muted {
    color: var(--gray);
    text-decoration: none;
}

.link-muted:hover {
    color: var(--dark);
}

/* ========== Lists ========== */
ul.styled-list,
ol.styled-list {
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

ul.styled-list {
    list-style-type: disc;
}

ol.styled-list {
    list-style-type: decimal;
}

ul.styled-list li,
ol.styled-list li {
    margin-bottom: var(--spacing-xs);
    line-height: var(--leading-relaxed);
}

/* ========== Blockquotes ========== */
blockquote {
    border-left: 4px solid var(--primary);
    padding-left: var(--spacing-sm);
    margin: var(--spacing-md) 0;
    font-style: italic;
    color: var(--gray);
}

/* ========== Code & Pre ========== */
code {
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
    padding: 0.2em 0.4em;
    background-color: var(--gray-lighter);
    border-radius: var(--radius-sm);
    color: var(--error);
}

pre {
    font-family: 'Courier New', Courier, monospace;
    font-size: var(--text-sm);
    padding: var(--spacing-sm);
    background-color: var(--gray-lighter);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--spacing-sm) 0;
}

pre code {
    background: none;
    padding: 0;
    color: inherit;
}

/* ========== Mobile Responsiveness ========== */
@media (max-width: 768px) {
    h1, .h1 {
        font-size: 2.5rem;
        margin-bottom: var(--spacing-sm);
    }

    h2, .h2 {
        font-size: 2rem;
    }

    h3, .h3 {
        font-size: 1.5rem;
    }

    p {
        font-size: var(--text-base);
    }
}

/* ===================================
   UTILITY CLASSES
   Reusable utility classes for common patterns
   =================================== */

/* ========== Layout Utilities ========== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

/* Flexbox */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.items-center { align-items: center; }
.items-stretch { align-items: stretch; }

.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* Grid */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* ========== Spacing Utilities ========== */
/* Margin */
.m-0 { margin: 0; }
.m-xs { margin: var(--spacing-xs); }
.m-sm { margin: var(--spacing-sm); }
.m-md { margin: var(--spacing-md); }
.m-lg { margin: var(--spacing-lg); }
.m-xl { margin: var(--spacing-xl); }
.m-auto { margin: auto; }

.mt-0 { margin-top: 0; }
.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Padding */
.p-0 { padding: 0; }
.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

.pt-xs { padding-top: var(--spacing-xs); }
.pt-sm { padding-top: var(--spacing-sm); }
.pt-md { padding-top: var(--spacing-md); }
.pt-lg { padding-top: var(--spacing-lg); }
.pt-xl { padding-top: var(--spacing-xl); }

.pb-xs { padding-bottom: var(--spacing-xs); }
.pb-sm { padding-bottom: var(--spacing-sm); }
.pb-md { padding-bottom: var(--spacing-md); }
.pb-lg { padding-bottom: var(--spacing-lg); }
.pb-xl { padding-bottom: var(--spacing-xl); }

/* ========== Display Utilities ========== */
.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }

.hidden { display: none !important; }
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* ========== Position Utilities ========== */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* ========== Width & Height ========== */
.w-full { width: 100%; }
.w-auto { width: auto; }
.h-full { height: 100%; }
.h-auto { height: auto; }
.h-screen { height: 100vh; }

/* ========== Border Utilities ========== */
.rounded-none { border-radius: 0; }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* ========== Shadow Utilities ========== */
.shadow-none { box-shadow: none; }
.shadow-xs { box-shadow: var(--shadow-xs); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-2xl { box-shadow: var(--shadow-2xl); }

/* ========== Background Utilities ========== */
.bg-primary { background-color: var(--primary); }
.bg-secondary { background-color: var(--secondary); }
.bg-dark { background-color: var(--dark); }
.bg-gray { background-color: var(--gray); }
.bg-gray-light { background-color: var(--gray-light); }
.bg-gray-lighter { background-color: var(--gray-lighter); }
.bg-white { background-color: var(--white); }
.bg-transparent { background-color: transparent; }

/* Gradient Backgrounds */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.bg-gradient-secondary {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
}

/* ========== Overflow Utilities ========== */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-hidden { overflow-y: hidden; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

/* ========== Cursor Utilities ========== */
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }
.cursor-not-allowed { cursor: not-allowed; }

/* ========== Interaction Utilities ========== */
.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }

.select-none { user-select: none; }
.select-text { user-select: text; }
.select-all { user-select: all; }

/* ========== Transition Utilities ========== */
.transition-fast { transition: all var(--transition-fast); }
.transition-base { transition: all var(--transition-base); }
.transition-slow { transition: all var(--transition-slow); }

/* ========== Opacity Utilities ========== */
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* ========== Z-Index Utilities ========== */
.z-auto { z-index: auto; }
.z-dropdown { z-index: var(--z-dropdown); }
.z-sticky { z-index: var(--z-sticky); }
.z-fixed { z-index: var(--z-fixed); }
.z-modal { z-index: var(--z-modal); }

/* ========== Responsive Utilities ========== */
@media (max-width: 768px) {
    .mobile-hidden { display: none !important; }
    .mobile-visible { display: block !important; }
}

@media (min-width: 769px) {
    .desktop-hidden { display: none !important; }
    .desktop-visible { display: block !important; }
}

/* ===================================
   BUTTON COMPONENTS
   All button styles and variations
   =================================== */

/* ========== Base Button ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    line-height: 1;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    user-select: none;
}

.btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.btn:disabled,
.btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ========== Primary Button ========== */
.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

/* ========== Secondary Button ========== */
.btn-secondary {
    background: transparent;
    color: var(--dark);
    border: 2px solid var(--gray-light);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(37, 99, 235, 0.05);
}

.btn-secondary:active {
    background: rgba(37, 99, 235, 0.1);
}

/* ========== Outline Button ========== */
.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

/* ========== Ghost Button ========== */
.btn-ghost {
    background: transparent;
    color: var(--dark);
    border: none;
}

.btn-ghost:hover {
    background: var(--gray-lighter);
    color: var(--primary);
}

/* ========== Link Button ========== */
.btn-link {
    background: transparent;
    color: var(--primary);
    border: none;
    padding: 0.5rem 1rem;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.btn-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ========== Success Button ========== */
.btn-success {
    background: var(--success);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ========== Danger/Error Button ========== */
.btn-danger {
    background: var(--error);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ========== Button Sizes ========== */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--text-sm);
}

.btn-md {
    padding: 0.75rem 1.5rem;
    font-size: var(--text-base);
}

.btn-lg {
    padding: 1.25rem 2.5rem;
    font-size: var(--text-lg);
}

/* ========== Full Width Button ========== */
.btn-full {
    width: 100%;
    display: flex;
}

/* ========== Icon Buttons ========== */
.btn-icon {
    padding: 0.75rem;
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-full);
}

.btn-icon i {
    font-size: 1.25rem;
}

/* ========== Button Group ========== */
.btn-group {
    display: inline-flex;
    gap: 0.5rem;
}

.btn-group-vertical {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* ========== Loading Button ========== */
.btn.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid currentColor;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========== Responsive Buttons ========== */
@media (max-width: 768px) {
    .btn {
        padding: 0.875rem 1.5rem;
        font-size: var(--text-sm);
    }

    .btn-lg {
        padding: 1rem 2rem;
        font-size: var(--text-base);
    }

    .btn-group {
        flex-direction: column;
        width: 100%;
    }

    .btn-group .btn {
        width: 100%;
    }
}

/* ===================================
   NAVIGATION COMPONENT
   Main navigation bar with mobile menu
   =================================== */

/* ========== Main Navigation ========== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-lighter);
    padding: 1rem 0;
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
}

.nav.scrolled {
    box-shadow: var(--shadow-md);
    padding: 0.75rem 0;
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ========== Logo ========== */
.nav-logo {
    flex-shrink: 0;
}

.nav-logo a {
    display: inline-block;
    transition: transform var(--transition-base);
}

.nav-logo a:hover {
    transform: scale(1.05);
}

.nav-logo .logo-text {
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    color: var(--dark);
}

.nav-logo .logo-accent {
    color: var(--primary);
}

/* ========== Navigation Menu ========== */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    position: relative;
    color: var(--dark);
    font-weight: var(--font-medium);
    font-size: var(--text-base);
    padding: 0.5rem 0;
    transition: color var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: var(--primary);
}

/* ========== Mobile Toggle Button ========== */
.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--dark);
    cursor: pointer;
    padding: 0.5rem;
    transition: color var(--transition-base);
}

.nav-toggle:hover {
    color: var(--primary);
}

.nav-toggle i {
    transition: transform var(--transition-base);
}

.nav-toggle.active i {
    transform: rotate(90deg);
}

/* ========== Mobile Navigation ========== */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--white);
        padding: var(--spacing-md);
        gap: 0;
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }

    .nav-menu.active {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        width: 100%;
        padding: 1rem 0;
        border-bottom: 1px solid var(--gray-lighter);
        color: var(--dark);
        font-weight: var(--font-medium);
    }

    .nav-link:hover {
        color: var(--primary);
        background: rgba(37, 99, 235, 0.05);
    }

    .nav-link.active {
        color: var(--primary);
        font-weight: var(--font-semibold);
    }

    .nav-link:last-child {
        border-bottom: none;
    }

    .nav-link::after {
        display: none;
    }

    /* Removed overlay - no background needed */
}

/* ===================================
   FORM COMPONENTS
   Input fields, textareas, selects, and form layouts
   =================================== */

/* ========== Form Group ========== */
.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    font-weight: var(--font-medium);
    color: var(--dark);
    margin-bottom: var(--spacing-xs);
    font-size: var(--text-sm);
}

.form-group label.required::after {
    content: '*';
    color: var(--error);
    margin-left: 0.25rem;
}

/* ========== Input Fields ========== */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="number"],
input[type="url"],
textarea,
select {
    width: 100%;
    padding: 1rem 1.25rem;
    font-size: var(--text-base);
    font-family: var(--font-primary);
    color: var(--dark);
    background: var(--white);
    border: 2px solid var(--gray-lighter);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="url"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

input[type="text"]:hover,
input[type="email"]:hover,
input[type="tel"]:hover,
input[type="password"]:hover,
input[type="number"]:hover,
input[type="url"]:hover,
textarea:hover,
select:hover {
    border-color: var(--gray-light);
}

/* Placeholder */
::placeholder {
    color: var(--gray);
    opacity: 1;
}

:-ms-input-placeholder {
    color: var(--gray);
}

::-ms-input-placeholder {
    color: var(--gray);
}

/* ========== Textarea ========== */
textarea {
    min-height: 120px;
    resize: vertical;
}

/* ========== Select Dropdown ========== */
select {
    cursor: pointer;
    background-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8"><path fill="%2364748b" d="M6 8L0 0h12z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 12px;
    padding-right: 3rem;
}

/* ========== Error State ========== */
.form-group.error input,
.form-group.error textarea,
.form-group.error select,
input.error,
textarea.error,
select.error {
    border-color: var(--error);
}

.form-group.error input:focus,
.form-group.error textarea:focus,
.form-group.error select:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-error-message {
    display: block;
    color: var(--error);
    font-size: var(--text-sm);
    margin-top: var(--spacing-xs);
}

/* ========== Success State ========== */
.form-group.success input,
.form-group.success textarea,
.form-group.success select {
    border-color: var(--success);
}

.form-success-message {
    display: block;
    color: var(--success);
    font-size: var(--text-sm);
    margin-top: var(--spacing-xs);
}

/* ========== Disabled State ========== */
input:disabled,
textarea:disabled,
select:disabled,
input[readonly],
textarea[readonly],
select[readonly] {
    background-color: var(--gray-lighter);
    color: var(--gray);
    cursor: not-allowed;
    opacity: 0.6;
}

/* ========== Checkbox & Radio ========== */
.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-xs);
}

input[type="checkbox"],
input[type="radio"] {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
    border: 2px solid var(--gray-light);
}

input[type="checkbox"]:checked,
input[type="radio"]:checked {
    accent-color: var(--primary);
}

.form-check label {
    margin: 0;
    cursor: pointer;
    user-select: none;
}

/* ========== Input Groups ========== */
.input-group {
    display: flex;
    align-items: stretch;
}

.input-group input {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-group-append {
    display: flex;
    align-items: center;
    padding: 0 1rem;
    background: var(--gray-lighter);
    border: 2px solid var(--gray-lighter);
    border-left: none;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--gray);
}

/* ========== Help Text ========== */
.form-help {
    display: block;
    font-size: var(--text-sm);
    color: var(--gray);
    margin-top: var(--spacing-xs);
}

/* ========== Form Layout Variants ========== */
.form-inline {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-end;
}

.form-inline .form-group {
    flex: 1;
    margin-bottom: 0;
}

/* ========== Contact Form Specific ========== */
.contact-form {
    width: 100%;
    max-width: 600px;
}

/* ========== Mobile Responsiveness ========== */
@media (max-width: 768px) {
    input[type="text"],
    input[type="email"],
    input[type="tel"],
    input[type="password"],
    input[type="number"],
    input[type="url"],
    textarea,
    select {
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .form-inline {
        flex-direction: column;
    }

    .form-inline .form-group {
        width: 100%;
    }
}

/* ===================================
   CARD COMPONENTS
   Service cards, portfolio cards, etc.
   =================================== */

/* ========== Base Card ========== */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ========== Service Card ========== */
.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
    border: 1px solid var(--gray-lighter);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    transition: transform var(--transition-base);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--dark);
    margin-bottom: var(--spacing-xs);
}

.service-description {
    color: var(--gray);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--spacing-sm);
    flex-grow: 1;
}

.service-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    color: var(--dark);
    font-size: var(--text-sm);
}

.service-features li i {
    color: var(--success);
    font-size: 0.875rem;
}

/* ========== Portfolio Card ========== */
.portfolio-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-base);
}

.portfolio-item:hover {
    transform: scale(1.02);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    aspect-ratio: 4 / 3;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.95) 0%, rgba(15, 23, 42, 0.7) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--spacing-md);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-info h3 {
    color: var(--white);
    font-size: var(--text-xl);
    margin-bottom: 0.5rem;
}

.portfolio-info p {
    color: var(--gray-light);
    font-size: var(--text-sm);
    margin-bottom: var(--spacing-sm);
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
}

.portfolio-tags span {
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--white);
    font-size: var(--text-xs);
    backdrop-filter: blur(4px);
}

.portfolio-link {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-full);
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.25rem;
    opacity: 0;
    transform: scale(0.8);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.portfolio-item:hover .portfolio-link {
    opacity: 1;
    transform: scale(1);
}

.portfolio-link:hover {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.1);
}

.portfolio-link-inactive {
    background: var(--gray);
    color: var(--white);
    cursor: not-allowed;
    pointer-events: none;
}

.portfolio-link-inactive:hover {
    background: var(--gray);
    color: var(--white);
    transform: scale(1);
}

/* ========== Process Step Card ========== */
.process-step {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.process-step:hover {
    background: var(--gray-lighter);
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.step-content h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-xs);
}

.step-description {
    color: var(--gray);
    line-height: var(--leading-relaxed);
}

/* ========== Contact Info Card ========== */
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: background var(--transition-base);
}

.contact-item:hover {
    background: var(--gray-lighter);
}

.contact-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
}

.contact-details h4 {
    font-size: var(--text-base);
    margin-bottom: 0.25rem;
    color: var(--dark);
}

.contact-details a,
.contact-details p {
    font-size: var(--text-base);
    color: var(--gray);
    margin: 0;
}

.contact-details a:hover {
    color: var(--primary);
}

/* ========== Mobile Responsiveness ========== */
@media (max-width: 768px) {
    .service-card {
        padding: var(--spacing-sm);
    }

    .portfolio-tags {
        font-size: var(--text-xs);
    }

    .process-step {
        flex-direction: column;
        text-align: center;
    }

    .step-number {
        margin: 0 auto;
    }
}

/* ===================================
   FAQ SECTION
   Accordion-style FAQ with smooth animations
   =================================== */

.faq {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border: 1px solid var(--gray-light);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    user-select: none;
    background: var(--white);
    transition: background-color var(--transition-base);
}

.faq-question:hover {
    background: var(--gray-lightest);
}

.faq-question h3 {
    font-size: 1.125rem;
    font-weight: var(--font-semibold);
    color: var(--dark);
    margin: 0;
    padding-right: var(--spacing-md);
    flex: 1;
}

.faq-question i {
    font-size: 1.25rem;
    color: var(--primary);
    transition: transform var(--transition-base);
    flex-shrink: 0;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    transition: max-height 0.5s ease-in, padding 0.5s ease-in;
}

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-md);
    margin: 0;
    color: var(--gray);
    line-height: var(--leading-relaxed);
    font-size: var(--text-base);
}

/* Active state styling */
.faq-item.active {
    border-color: var(--primary);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.15);
}

.faq-item.active .faq-question {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(37, 99, 235, 0.02) 100%);
}

.faq-item.active .faq-question h3 {
    color: var(--primary);
}

/* ========== Mobile Responsiveness ========== */
@media (max-width: 768px) {
    .faq {
        padding: var(--spacing-lg) 0;
    }

    .faq-question {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .faq-question h3 {
        font-size: 1rem;
        padding-right: var(--spacing-sm);
    }

    .faq-question i {
        font-size: 1rem;
    }

    .faq-answer p {
        padding: 0 var(--spacing-md) var(--spacing-sm);
        font-size: var(--text-sm);
    }

    .faq-item {
        margin-bottom: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .faq-question h3 {
        font-size: 0.9375rem;
    }

    .faq-question {
        padding: 0.75rem 1rem;
    }

    .faq-answer p {
        padding: 0 1rem 0.75rem;
    }
}

/* ===================================
   PRICING SECTION
   Pricing cards with packages
   =================================== */

.pricing {
    padding: var(--spacing-xl) 0;
    background: var(--gray-lightest);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

/* Pricing Card */
.pricing-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    position: relative;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.15);
    border-color: var(--primary);
}

/* Featured Card */
.pricing-card-featured {
    background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
    color: var(--white);
    transform: scale(1.05);
    border-color: var(--primary);
}

.pricing-card-featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.pricing-card-featured .pricing-title,
.pricing-card-featured .pricing-description,
.pricing-card-featured .pricing-features li {
    color: var(--white);
}

.pricing-card-featured .pricing-features i {
    color: #60a5fa;
}

/* Pricing Badge */
.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--white);
    padding: 0.375rem 1rem;
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
}

.pricing-badge-featured {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    box-shadow: 0 4px 8px rgba(16, 185, 129, 0.3);
}

/* Pricing Header */
.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--gray-light);
}

.pricing-card-featured .pricing-header {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.pricing-title {
    font-size: 1.75rem;
    font-weight: var(--font-bold);
    color: var(--dark);
    margin-bottom: var(--spacing-xs);
}

.pricing-description {
    color: var(--gray);
    font-size: var(--text-base);
    margin: 0;
}

/* Pricing Features */
.pricing-features {
    flex: 1;
    margin-bottom: var(--spacing-lg);
}

.pricing-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pricing-features li {
    padding: 0.75rem 0;
    color: var(--gray);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
}

.pricing-features i {
    color: var(--primary);
    font-size: 1rem;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

/* Pricing Footer */
.pricing-footer {
    margin-top: auto;
}

.pricing-footer .btn {
    width: 100%;
    justify-content: center;
}

/* Pricing Note */
.pricing-note {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--white);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.pricing-note i {
    color: var(--primary);
    font-size: 1.25rem;
    margin-top: 0.125rem;
    flex-shrink: 0;
}

.pricing-note p {
    margin: 0;
    color: var(--gray);
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
}

.pricing-note strong {
    color: var(--dark);
}

/* ========== Mobile Responsiveness ========== */
@media (max-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--spacing-md);
    }

    .pricing-card-featured {
        transform: scale(1);
    }

    .pricing-card-featured:hover {
        transform: translateY(-8px);
    }
}

@media (max-width: 768px) {
    .pricing {
        padding: var(--spacing-lg) 0;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        margin-top: var(--spacing-lg);
    }

    .pricing-card {
        padding: var(--spacing-md);
    }

    .pricing-title {
        font-size: 1.5rem;
    }

    .pricing-features li {
        font-size: var(--text-sm);
        padding: 0.5rem 0;
    }

    .pricing-note {
        flex-direction: column;
        padding: var(--spacing-md);
        margin-top: var(--spacing-lg);
    }

    .pricing-note i {
        margin-top: 0;
    }
}

@media (max-width: 480px) {
    .pricing-card {
        padding: 1rem;
    }

    .pricing-title {
        font-size: 1.25rem;
    }

    .pricing-badge {
        font-size: 0.75rem;
        padding: 0.25rem 0.75rem;
    }

    .pricing-features li {
        font-size: 0.875rem;
        gap: 0.5rem;
    }

    .pricing-note p {
        font-size: var(--text-sm);
    }
}

/* ===================================
   HERO SECTION
   Main hero/landing section styles
   =================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--header-height) + 4rem) var(--spacing-md) 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 50%, #dbeafe 100%);
    z-index: -1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    top: -200px;
    right: -200px;
    animation: float 20s ease-in-out infinite;
}

.hero-bg::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    bottom: -100px;
    left: -100px;
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(30px, -30px) scale(1.1);
    }
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: var(--font-extrabold);
    line-height: var(--leading-tight);
    color: var(--dark);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--gray);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--spacing-md);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-sm);
}

.stat-number {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-extrabold);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--gray);
    font-weight: var(--font-medium);
}

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: var(--spacing-sm);
        padding-top: calc(var(--header-height) + var(--spacing-md));
        padding-bottom: var(--spacing-lg);
    }

    .hero-title {
        font-size: 1.75rem;
        line-height: 1.3;
        word-wrap: break-word;
        overflow-wrap: break-word;
        hyphens: none;
        margin-bottom: var(--spacing-sm);
    }

    .hero-subtitle {
        font-size: 0.9375rem;
        line-height: 1.5;
        margin-bottom: var(--spacing-md);
    }

    .hero-cta {
        flex-direction: column;
        gap: 0.75rem;
        margin-bottom: var(--spacing-md);
    }

    .hero-cta .btn {
        width: 100%;
        padding: 0.875rem 1.5rem;
    }

    .hero-stats {
        gap: var(--spacing-sm);
        margin-top: var(--spacing-md);
    }

    .stat-item {
        flex: 1;
        min-width: 100px;
    }
}

@media (max-width: 400px) {
    .hero {
        padding: var(--spacing-xs);
        padding-top: calc(var(--header-height) + var(--spacing-sm));
        padding-bottom: var(--spacing-md);
        min-height: auto;
    }

    .hero-title {
        font-size: 1.5rem;
        line-height: 1.3;
        margin-bottom: 0.625rem;
    }

    .hero-subtitle {
        font-size: 0.8125rem;
        line-height: 1.4;
        margin-bottom: var(--spacing-sm);
    }

    .hero-cta {
        gap: 0.625rem;
        margin-bottom: var(--spacing-sm);
    }

    .hero-cta .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9375rem;
    }

    .hero-stats {
        margin-top: var(--spacing-sm);
        gap: 0.5rem;
    }

    .stat-item {
        min-width: 85px;
        padding: 0.5rem;
    }

    .stat-number {
        font-size: 1.75rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }
}

/* ===================================
   SECTION LAYOUTS
   Common section styles and grids
   =================================== */

/* ========== Section Base ========== */
section {
    padding: var(--spacing-xl) 0;
    overflow: hidden;
}

section:nth-child(even) {
    background: var(--gray-lighter);
}

/* ========== Section Header ========== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    color: var(--primary);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-extrabold);
    color: var(--dark);
    line-height: var(--leading-tight);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--gray);
    line-height: var(--leading-relaxed);
    max-width: 600px;
    margin: 0 auto;
}

/* ========== Services Grid ========== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* ========== Portfolio Grid ========== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* ========== Process Timeline ========== */
.process-timeline {
    max-width: 900px;
    margin: var(--spacing-lg) auto 0;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary) 0%, var(--secondary) 100%);
}

/* ========== Contact Wrapper ========== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.contact-info {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-info h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--dark);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.social-link {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-full);
    background: var(--gray-lighter);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray);
    font-size: 1.25rem;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    transform: translateY(-2px);
}

/* ========== Mobile Responsiveness ========== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .portfolio-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    section {
        padding: var(--spacing-lg) 0;
    }

    .section-header {
        margin-bottom: var(--spacing-md);
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .process-timeline::before {
        display: none;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .contact-info {
        order: 2;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 1.75rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }
}

/* ===================================
   FOOTER LAYOUT
   Footer styles and structure
   =================================== */

.footer {
    background: var(--dark);
    color: var(--gray-light);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    margin-bottom: var(--spacing-sm);
}

.footer-logo .logo-text {
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    color: var(--white);
}

.footer-logo .logo-accent {
    color: var(--primary);
}

.footer-description {
    color: var(--gray-light);
    line-height: var(--leading-relaxed);
    margin: 0;
}

.footer-links h4,
.footer-legal-section h4 {
    font-size: 1.1rem;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-semibold);
}

.footer-links a,
.footer-legal-section a {
    display: block;
    color: var(--gray-light);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color var(--transition-base);
    font-size: var(--text-base);
}

.footer-links a:hover,
.footer-legal-section a:hover {
    color: var(--primary);
    padding-left: 0.25rem;
}

/* Trust Badges */
.footer-trust-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin: var(--spacing-md) 0;
    flex-wrap: wrap;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-full);
    border: 1px solid rgba(37, 99, 235, 0.2);
    transition: all var(--transition-base);
}

.trust-badge:hover {
    background: rgba(37, 99, 235, 0.15);
    border-color: rgba(37, 99, 235, 0.3);
    transform: translateY(-2px);
}

.trust-badge i {
    color: var(--primary);
    font-size: 1.25rem;
}

.trust-badge span {
    color: var(--gray-light);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    white-space: nowrap;
}

.footer-bottom {
    padding-top: var(--spacing-sm);
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.footer-bottom p {
    margin: 0;
    color: var(--gray-light);
    font-size: var(--text-sm);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.footer-legal a {
    color: var(--gray-light);
    font-size: var(--text-sm);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-legal a:hover {
    color: var(--white);
}

/* ========== Mobile Responsiveness ========== */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .footer-brand {
        grid-column: 1 / -1;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .footer {
        padding: var(--spacing-lg) 0 var(--spacing-sm);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .footer-brand {
        grid-column: 1;
        text-align: center;
    }

    .footer-links,
    .footer-legal-section {
        text-align: center;
    }

    .footer-links a,
    .footer-legal-section a {
        display: inline-block;
        margin: 0 var(--spacing-xs) 0.5rem;
    }

    .footer-links a:hover,
    .footer-legal-section a:hover {
        padding-left: 0;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-xs);
    }

    .footer-legal {
        justify-content: center;
    }
}

/* ===================================
   ANIMATIONS
   Keyframe animations for components
   =================================== */

/* Fade In Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slide Up Animation */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scale In Animation */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Pulse Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Spin Animation */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===================================
   PRINT STYLES
   Optimized styles for printing
   =================================== */

@media print {
    *,
    *::before,
    *::after {
        background: transparent !important;
        color: #000 !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }

    a,
    a:visited {
        text-decoration: underline;
    }

    a[href]::after {
        content: " (" attr(href) ")";
    }

    abbr[title]::after {
        content: " (" attr(title) ")";
    }

    img {
        page-break-inside: avoid;
    }

    p,
    h2,
    h3 {
        orphans: 3;
        widows: 3;
    }

    h2,
    h3 {
        page-break-after: avoid;
    }

    .nav,
    .footer,
    .btn,
    .scroll-indicator {
        display: none !important;
    }
}

/* ===================================
   SERVICES MINIMAL - 3 Cards Clean
   =================================== */

.services-minimal {
    padding: 4rem 1rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.services-minimal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.service-minimal-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-lighter);
    transition: all var(--transition-base);
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.service-minimal-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.service-minimal-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--white);
    transition: transform var(--transition-base);
}

.service-minimal-card:hover .service-minimal-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-minimal-card h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--dark);
    margin-bottom: var(--spacing-xs);
}

.service-minimal-card p {
    color: var(--gray);
    line-height: var(--leading-relaxed);
    font-size: var(--text-base);
    margin: 0;
    flex-grow: 1;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .services-minimal {
        padding: 3rem 1rem;
    }

    .services-minimal-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .service-minimal-card {
        padding: 1.5rem;
    }
}