/**
 * Nexus Landing Page - Production Stylesheet
 * 
 * Structure:
 * 1. CSS Variables & Theme System
 * 2. Reset & Base Styles
 * 3. Typography
 * 4. Layout & Container
 * 5. Components (Buttons, Cards, etc.)
 * 6. Header & Navigation
 * 7. Hero Section
 * 8. Features Section
 * 9. How It Works Section
 * 10. Testimonials Section
 * 11. Pricing Section
 * 12. CTA Section
 * 13. Footer
 * 14. Utilities & Animations
 * 15. Media Queries
 */

/* ==========================================================================
   1. CSS VARIABLES & THEME SYSTEM
   ========================================================================== */

:root {
    /* ===== Typography ===== */
    --font-primary: 'Inter', 'Noto Sans Arabic', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-arabic: 'Noto Sans Arabic', 'Inter', sans-serif;

    /* Font Sizes - Mobile First (rem) */
    --fs-xs: 0.75rem;
    /* 12px */
    --fs-sm: 0.875rem;
    /* 14px */
    --fs-base: 1rem;
    /* 16px */
    --fs-md: 1.125rem;
    /* 18px */
    --fs-lg: 1.25rem;
    /* 20px */
    --fs-xl: 1.5rem;
    /* 24px */
    --fs-2xl: 2rem;
    /* 32px */
    --fs-3xl: 2.5rem;
    /* 40px */
    --fs-4xl: 3rem;
    /* 48px */
    --fs-5xl: 3.5rem;
    /* 56px */

    /* Font Weights */
    --fw-regular: 400;
    --fw-medium: 500;
    --fw-semibold: 600;
    --fw-bold: 700;

    /* Line Heights */
    --lh-tight: 1.2;
    --lh-snug: 1.375;
    --lh-normal: 1.5;
    --lh-relaxed: 1.625;

    /* ===== Spacing ===== */
    --space-1: 0.25rem;
    /* 4px */
    --space-2: 0.5rem;
    /* 8px */
    --space-3: 0.75rem;
    /* 12px */
    --space-4: 1rem;
    /* 16px */
    --space-5: 1.25rem;
    /* 20px */
    --space-6: 1.5rem;
    /* 24px */
    --space-8: 2rem;
    /* 32px */
    --space-10: 2.5rem;
    /* 40px */
    --space-12: 3rem;
    /* 48px */
    --space-16: 4rem;
    /* 64px */
    --space-20: 5rem;
    /* 80px */
    --space-24: 6rem;
    /* 96px */

    /* ===== Border Radius ===== */
    --radius-sm: 0.375rem;
    /* 6px */
    --radius-md: 0.5rem;
    /* 8px */
    --radius-lg: 0.75rem;
    /* 12px */
    --radius-xl: 1rem;
    /* 16px */
    --radius-2xl: 1.5rem;
    /* 24px */
    --radius-full: 9999px;

    /* ===== Shadows ===== */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

    /* ===== Transitions ===== */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-theme: 400ms ease;

    /* ===== Z-Index Scale ===== */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-tooltip: 600;

    /* ===== Container ===== */
    --container-max: 1200px;
    --container-padding: var(--space-4);
}

/* Light Theme (Default) */
[data-theme="light"] {
    /* Primary Colors */
    --color-primary-50: #eff6ff;
    --color-primary-100: #dbeafe;
    --color-primary-200: #bfdbfe;
    --color-primary-300: #93c5fd;
    --color-primary-400: #60a5fa;
    --color-primary-500: #3b82f6;
    --color-primary-600: #2563eb;
    --color-primary-700: #1d4ed8;
    --color-primary-800: #1e40af;
    --color-primary-900: #1e3a8a;

    /* Neutral Colors */
    --color-neutral-50: #f9fafb;
    --color-neutral-100: #f3f4f6;
    --color-neutral-200: #e5e7eb;
    --color-neutral-300: #d1d5db;
    --color-neutral-400: #9ca3af;
    --color-neutral-500: #6b7280;
    --color-neutral-600: #4b5563;
    --color-neutral-700: #374151;
    --color-neutral-800: #1f2937;
    --color-neutral-900: #111827;

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

    /* UI Colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f9fafb;
    --color-bg-tertiary: #f3f4f6;
    --color-bg-accent: var(--color-primary-50);

    --color-text-primary: var(--color-neutral-900);
    --color-text-secondary: var(--color-neutral-600);
    --color-text-tertiary: var(--color-neutral-500);
    --color-text-inverted: #ffffff;

    --color-border-primary: var(--color-neutral-200);
    --color-border-secondary: var(--color-neutral-100);

    /* Component-specific */
    --color-logo: var(--color-primary-600);
    --color-header-bg: rgba(255, 255, 255, 0.95);
    --color-card-bg: #ffffff;
    --color-card-border: var(--color-neutral-200);
    --color-badge-bg: var(--color-primary-100);
    --color-badge-text: var(--color-primary-700);
    --color-star: #fbbf24;
    --color-icon-bg: var(--color-primary-100);
    --color-icon: var(--color-primary-600);
    --color-cta-bg: var(--color-primary-600);
    --color-footer-bg: var(--color-neutral-900);
    --color-footer-text: var(--color-neutral-300);
}

/* Dark Theme */
[data-theme="dark"] {
    /* Primary Colors - Slightly brighter for dark mode */
    --color-primary-50: #1e3a5f;
    --color-primary-100: #1e4076;
    --color-primary-200: #1d4ed8;
    --color-primary-300: #2563eb;
    --color-primary-400: #3b82f6;
    --color-primary-500: #60a5fa;
    --color-primary-600: #93c5fd;
    --color-primary-700: #bfdbfe;
    --color-primary-800: #dbeafe;
    --color-primary-900: #eff6ff;

    /* Neutral Colors */
    --color-neutral-50: #111827;
    --color-neutral-100: #1f2937;
    --color-neutral-200: #374151;
    --color-neutral-300: #4b5563;
    --color-neutral-400: #6b7280;
    --color-neutral-500: #9ca3af;
    --color-neutral-600: #d1d5db;
    --color-neutral-700: #e5e7eb;
    --color-neutral-800: #f3f4f6;
    --color-neutral-900: #f9fafb;

    /* Semantic Colors */
    --color-success: #34d399;
    --color-warning: #fbbf24;
    --color-error: #f87171;
    --color-info: #60a5fa;

    /* UI Colors */
    --color-bg-primary: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;
    --color-bg-accent: rgba(59, 130, 246, 0.1);

    --color-text-primary: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-tertiary: #94a3b8;
    --color-text-inverted: #0f172a;

    --color-border-primary: #334155;
    --color-border-secondary: #1e293b;

    /* Component-specific */
    --color-logo: var(--color-primary-500);
    --color-header-bg: rgba(15, 23, 42, 0.95);
    --color-card-bg: #1e293b;
    --color-card-border: #334155;
    --color-badge-bg: rgba(59, 130, 246, 0.2);
    --color-badge-text: var(--color-primary-500);
    --color-star: #fbbf24;
    --color-icon-bg: rgba(59, 130, 246, 0.2);
    --color-icon: var(--color-primary-500);
    --color-cta-bg: var(--color-primary-500);
    --color-footer-bg: #020617;
    --color-footer-text: #94a3b8;
}

/* ==========================================================================
   2. RESET & BASE STYLES
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-size: var(--fs-base);
    line-height: var(--lh-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-theme), color var(--transition-theme);
}

/* RTL Support for Arabic */
[dir="rtl"] body {
    font-family: var(--font-arabic);
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
    height: auto;
}

input,
button,
textarea,
select {
    font: inherit;
    color: inherit;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

/* ==========================================================================
   3. TYPOGRAPHY
   ========================================================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--fw-bold);
    line-height: var(--lh-tight);
    color: var(--color-text-primary);
}

h1 {
    font-size: var(--fs-3xl);
}

h2 {
    font-size: var(--fs-2xl);
}

h3 {
    font-size: var(--fs-xl);
}

h4 {
    font-size: var(--fs-lg);
}

p {
    color: var(--color-text-secondary);
}

/* ==========================================================================
   4. LAYOUT & CONTAINER
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

section {
    padding-block: var(--space-16);
}

/* Section Header */
.section-header {
    text-align: center;
    max-width: 700px;
    margin-inline: auto;
    margin-block-end: var(--space-12);
}

.section-header__badge {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background-color: var(--color-badge-bg);
    color: var(--color-badge-text);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    border-radius: var(--radius-full);
    margin-block-end: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-header__title {
    margin-block-end: var(--space-4);
}

.section-header__subtitle {
    font-size: var(--fs-md);
    max-width: 600px;
    margin-inline: auto;
}

/* ==========================================================================
   5. COMPONENTS
   ========================================================================== */

/* ----- Buttons ----- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--fs-base);
    font-weight: var(--fw-semibold);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn:focus-visible {
    outline: 2px solid var(--color-primary-500);
    outline-offset: 2px;
}

.btn--primary {
    background-color: var(--color-primary-600);
    color: var(--color-text-inverted);
}

[data-theme="dark"] .btn--primary {
    background-color: var(--color-primary-500);
    color: var(--color-neutral-50);
}

.btn--primary:hover {
    background-color: var(--color-primary-700);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

[data-theme="dark"] .btn--primary:hover {
    background-color: var(--color-primary-400);
}

.btn--secondary {
    background-color: transparent;
    color: var(--color-text-primary);
    border-color: var(--color-border-primary);
}

.btn--secondary:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-neutral-300);
}

.btn--lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--fs-md);
}

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

.btn--success {
    background-color: var(--color-success) !important;
    border-color: var(--color-success) !important;
    color: #ffffff !important;
}

.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

/* ----- Skip Link (Accessibility) ----- */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-4);
    z-index: var(--z-tooltip);
    padding: var(--space-3) var(--space-6);
    background-color: var(--color-primary-600);
    color: var(--color-text-inverted);
    font-weight: var(--fw-semibold);
    border-radius: var(--radius-md);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--space-4);
}

/* ==========================================================================
   6. HEADER & NAVIGATION
   ========================================================================== */

.header {
    position: fixed;
    top: 0;
    inset-inline: 0;
    z-index: var(--z-sticky);
    background-color: var(--color-header-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: background-color var(--transition-theme), box-shadow var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: var(--space-6);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-logo);
    transition: color var(--transition-theme);
}

.logo__icon {
    flex-shrink: 0;
}

.logo__bg {
    fill: currentColor;
}

.logo__text {
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    color: var(--color-text-primary);
}

/* Navigation List */
.nav__list {
    display: none;
    align-items: center;
    gap: var(--space-1);
}

.nav__link {
    padding: var(--space-2) var(--space-4);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav__link:hover,
.nav__link:focus-visible {
    color: var(--color-text-primary);
    background-color: var(--color-bg-tertiary);
}

/* Nav Actions */
.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.nav__cta {
    display: none;
}

/* Toggle Buttons */
.toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.toggle-btn:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

/* Language Toggle */
.lang-toggle__text {
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
}

/* Theme Toggle */
.theme-toggle__icon {
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.theme-toggle__icon--moon {
    display: none;
}

[data-theme="dark"] .theme-toggle__icon--sun {
    display: none;
}

[data-theme="dark"] .theme-toggle__icon--moon {
    display: block;
}

/* Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.hamburger:hover {
    background-color: var(--color-bg-tertiary);
}

.hamburger__line {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    transform-origin: center;
}

/* Hamburger Active State */
.hamburger.active .hamburger__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active .hamburger__line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation */
.nav__list.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    inset-inline: 0;
    background-color: var(--color-bg-primary);
    border-block-end: 1px solid var(--color-border-primary);
    padding: var(--space-4);
    gap: var(--space-2);
    animation: slideDown var(--transition-base) ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   7. HERO SECTION
   ========================================================================== */

.hero {
    position: relative;
    padding-block-start: calc(72px + var(--space-12));
    padding-block-end: var(--space-16);
    overflow: hidden;
    background-color: var(--color-bg-secondary);
}

.hero__content {
    display: grid;
    gap: var(--space-10);
    align-items: center;
}

.hero__text {
    text-align: center;
}

.hero__title {
    font-size: var(--fs-3xl);
    margin-block-end: var(--space-6);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-primary-600) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

[data-theme="dark"] .hero__title {
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-primary-500) 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

.hero__subtitle {
    font-size: var(--fs-md);
    margin-block-end: var(--space-8);
    max-width: 540px;
    margin-inline: auto;
}

.hero__cta {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    align-items: center;
    margin-block-end: var(--space-10);
}

/* Hero Stats */
.hero__stats {
    display: flex;
    justify-content: center;
    gap: var(--space-8);
    flex-wrap: wrap;
}

.hero__stat {
    text-align: center;
}

.hero__stat-number {
    display: block;
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    color: var(--color-primary-600);
}

[data-theme="dark"] .hero__stat-number {
    color: var(--color-primary-500);
}

.hero__stat-label {
    font-size: var(--fs-sm);
    color: var(--color-text-tertiary);
}

/* Hero Image */
.hero__image {
    display: flex;
    justify-content: center;
}

.hero__image img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(var(--shadow-2xl));
}

/* Hero Decorations */
.hero__decoration {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.hero__decoration--1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-primary-200) 0%, transparent 70%);
    top: -100px;
    inset-inline-end: -100px;
    opacity: 0.5;
}

.hero__decoration--2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--color-primary-300) 0%, transparent 70%);
    bottom: -50px;
    inset-inline-start: -50px;
    opacity: 0.3;
}

[data-theme="dark"] .hero__decoration--1,
[data-theme="dark"] .hero__decoration--2 {
    opacity: 0.15;
}

/* ==========================================================================
   8. FEATURES SECTION
   ========================================================================== */

.features {
    background-color: var(--color-bg-primary);
}

.features__grid {
    display: grid;
    gap: var(--space-6);
}

/* Feature Card */
.feature-card {
    padding: var(--space-8);
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-200);
}

[data-theme="dark"] .feature-card:hover {
    border-color: var(--color-primary-500);
}

.feature-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background-color: var(--color-icon-bg);
    color: var(--color-icon);
    border-radius: var(--radius-lg);
    margin-block-end: var(--space-6);
}

.feature-card__title {
    font-size: var(--fs-lg);
    margin-block-end: var(--space-3);
}

.feature-card__description {
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
}

/* ==========================================================================
   9. HOW IT WORKS SECTION
   ========================================================================== */

.how-it-works {
    background-color: var(--color-bg-secondary);
}

.steps {
    display: grid;
    gap: var(--space-8);
}

.step {
    position: relative;
    display: grid;
    gap: var(--space-6);
}

.step__number {
    font-size: var(--fs-5xl);
    font-weight: var(--fw-bold);
    color: var(--color-primary-100);
    line-height: 1;
}

[data-theme="dark"] .step__number {
    color: var(--color-primary-50);
    opacity: 0.5;
}

.step__content {
    padding: var(--space-6);
    background-color: var(--color-card-bg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-card-border);
}

.step__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background-color: var(--color-icon-bg);
    color: var(--color-icon);
    border-radius: var(--radius-lg);
    margin-block-end: var(--space-4);
}

.step__title {
    font-size: var(--fs-lg);
    margin-block-end: var(--space-2);
}

.step__description {
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
}

/* ==========================================================================
   10. TESTIMONIALS SECTION
   ========================================================================== */

.testimonials {
    background-color: var(--color-bg-primary);
}

.testimonials__grid {
    display: grid;
    gap: var(--space-6);
    margin-block-end: var(--space-12);
}

/* Testimonial Card */
.testimonial-card {
    padding: var(--space-8);
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
}

.testimonial-card__rating {
    display: flex;
    gap: var(--space-1);
    color: var(--color-star);
    margin-block-end: var(--space-4);
}

.testimonial-card__quote {
    font-size: var(--fs-base);
    font-style: normal;
    line-height: var(--lh-relaxed);
    color: var(--color-text-primary);
    margin-block-end: var(--space-6);
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.testimonial-card__avatar {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    object-fit: cover;
    background-color: var(--color-bg-tertiary);
}

.testimonial-card__name {
    display: block;
    font-style: normal;
    font-weight: var(--fw-semibold);
    color: var(--color-text-primary);
}

.testimonial-card__role {
    font-size: var(--fs-sm);
    color: var(--color-text-tertiary);
}

/* Trust Badges */
.trust-badges {
    text-align: center;
}

.trust-badges__text {
    font-size: var(--fs-sm);
    color: var(--color-text-tertiary);
    margin-block-end: var(--space-6);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.trust-badges__logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--space-8);
    opacity: 0.6;
    filter: grayscale(100%);
    transition: all var(--transition-base);
}

.trust-badges__logos:hover {
    opacity: 1;
    filter: grayscale(0%);
}

.trust-badges__logos img {
    height: 32px;
    width: auto;
}

/* ==========================================================================
   11. PRICING SECTION
   ========================================================================== */

.pricing {
    background-color: var(--color-bg-secondary);
}

.pricing__grid {
    display: grid;
    gap: var(--space-6);
    align-items: start;
}

/* Pricing Card */
.pricing-card {
    position: relative;
    padding: var(--space-8);
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

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

/* Featured Pricing Card */
.pricing-card--featured {
    border-color: var(--color-primary-500);
    border-width: 2px;
    background: linear-gradient(180deg, var(--color-bg-accent) 0%, var(--color-card-bg) 100%);
}

.pricing-card__badge {
    position: absolute;
    top: 0;
    inset-inline-start: 50%;
    transform: translateX(-50%) translateY(-50%);
    padding: var(--space-2) var(--space-4);
    background-color: var(--color-primary-600);
    color: var(--color-text-inverted);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

[dir="rtl"] .pricing-card__badge {
    transform: translateX(50%) translateY(-50%);
}

[data-theme="dark"] .pricing-card__badge {
    background-color: var(--color-primary-500);
}

.pricing-card__header {
    text-align: center;
    margin-block-end: var(--space-6);
}

.pricing-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    margin-inline: auto;
    margin-block-end: var(--space-4);
    background-color: var(--color-icon-bg);
    color: var(--color-icon);
    border-radius: var(--radius-lg);
}

.pricing-card__name {
    font-size: var(--fs-xl);
    margin-block-end: var(--space-2);
}

.pricing-card__description {
    font-size: var(--fs-sm);
}

.pricing-card__price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-1);
    margin-block-end: var(--space-6);
    padding-block-end: var(--space-6);
    border-block-end: 1px solid var(--color-border-primary);
}

.pricing-card__currency {
    font-size: var(--fs-xl);
    font-weight: var(--fw-semibold);
    color: var(--color-text-primary);
}

.pricing-card__amount {
    font-size: var(--fs-4xl);
    font-weight: var(--fw-bold);
    color: var(--color-text-primary);
    line-height: 1;
}

.pricing-card__amount--custom {
    font-size: var(--fs-2xl);
}

.pricing-card__period {
    font-size: var(--fs-sm);
    color: var(--color-text-tertiary);
}

.pricing-card__features {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-block-end: var(--space-8);
}

.pricing-card__feature {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
}

.pricing-card__feature svg {
    flex-shrink: 0;
    color: var(--color-success);
}

.pricing-card__feature--disabled {
    color: var(--color-text-tertiary);
    opacity: 0.6;
}

.pricing-card__feature--disabled svg {
    color: var(--color-text-tertiary);
}

/* ==========================================================================
   12. CONTACT / GET IN TOUCH SECTION
   ========================================================================== */

.contact {
    background-color: var(--color-bg-primary);
}

.contact__grid {
    display: grid;
    gap: var(--space-10);
}

/* Contact Form Wrapper */
.contact__form-wrapper {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.contact-form__row {
    display: grid;
    gap: var(--space-5);
}

.contact-form__group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.contact-form__label {
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--color-text-primary);
}

.contact-form__input,
.contact-form__select,
.contact-form__textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--fs-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-form__input:focus,
.contact-form__select:focus,
.contact-form__textarea:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px var(--color-primary-100);
}

[data-theme="dark"] .contact-form__input:focus,
[data-theme="dark"] .contact-form__select:focus,
[data-theme="dark"] .contact-form__textarea:focus {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.contact-form__input::placeholder,
.contact-form__textarea::placeholder {
    color: var(--color-text-tertiary);
}

.contact-form__select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    background-size: 20px;
    padding-inline-end: var(--space-10);
}

[dir="rtl"] .contact-form__select {
    background-position: left var(--space-3) center;
    padding-inline-start: var(--space-10);
    padding-inline-end: var(--space-4);
}

.contact-form__textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form__submit {
    margin-block-start: var(--space-2);
}

/* Contact Info Cards */
.contact__info {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.contact-info-card {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-6);
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.contact-info-card:hover {
    border-color: var(--color-primary-200);
    box-shadow: var(--shadow-md);
}

[data-theme="dark"] .contact-info-card:hover {
    border-color: var(--color-primary-500);
}

.contact-info-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    background-color: var(--color-icon-bg);
    color: var(--color-icon);
    border-radius: var(--radius-md);
}

.contact-info-card__content {
    flex: 1;
}

.contact-info-card__title {
    font-size: var(--fs-base);
    font-weight: var(--fw-semibold);
    margin-block-end: var(--space-1);
}

.contact-info-card__text {
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
}

.contact-info-card__text a {
    color: var(--color-primary-600);
    transition: color var(--transition-fast);
}

[data-theme="dark"] .contact-info-card__text a {
    color: var(--color-primary-500);
}

.contact-info-card__text a:hover {
    color: var(--color-primary-700);
    text-decoration: underline;
}

[data-theme="dark"] .contact-info-card__text a:hover {
    color: var(--color-primary-400);
}

/* ==========================================================================
   13. CTA SECTION
   ========================================================================== */

.cta-section {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-800) 100%);
    overflow: hidden;
}

[data-theme="dark"] .cta-section {
    background: linear-gradient(135deg, var(--color-primary-400) 0%, var(--color-primary-600) 100%);
}

.cta-section__content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding-block: var(--space-8);
}

.cta-section__title {
    font-size: var(--fs-2xl);
    color: #ffffff;
    margin-block-end: var(--space-4);
}

.cta-section__subtitle {
    font-size: var(--fs-md);
    color: rgba(255, 255, 255, 0.9);
    max-width: 540px;
    margin-inline: auto;
    margin-block-end: var(--space-8);
}

.cta-section__actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}

.cta-section .btn--primary {
    background-color: #ffffff;
    color: var(--color-primary-700);
}

.cta-section .btn--primary:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

.cta-section__note {
    font-size: var(--fs-sm);
    color: rgba(255, 255, 255, 0.8);
}

.cta-section__decoration {
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

/* ==========================================================================
   13. FOOTER
   ========================================================================== */

.footer {
    background-color: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding-block: var(--space-16);
}

.footer__grid {
    display: grid;
    gap: var(--space-10);
}

.footer__brand {
    max-width: 280px;
}

.footer .logo {
    margin-block-end: var(--space-4);
}

.footer .logo__text {
    color: #ffffff;
}

.footer .logo__bg {
    fill: var(--color-primary-500);
}

.footer__tagline {
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
    margin-block-end: var(--space-6);
}

.footer__social {
    display: flex;
    gap: var(--space-3);
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-footer-text);
    transition: all var(--transition-fast);
}

.footer__social-link:hover {
    background-color: var(--color-primary-600);
    color: #ffffff;
    transform: translateY(-2px);
}

.footer__column {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer__heading {
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer__link {
    font-size: var(--fs-sm);
    color: var(--color-footer-text);
    transition: color var(--transition-fast);
}

.footer__link:hover {
    color: #ffffff;
}

.footer__bottom {
    margin-block-start: var(--space-12);
    padding-block-start: var(--space-8);
    border-block-start: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer__copyright {
    font-size: var(--fs-sm);
}

/* ==========================================================================
   14. UTILITIES & ANIMATIONS
   ========================================================================== */

/* Scroll-triggered animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animation delays */
.features__grid .animate-on-scroll:nth-child(1) {
    transition-delay: 0ms;
}

.features__grid .animate-on-scroll:nth-child(2) {
    transition-delay: 100ms;
}

.features__grid .animate-on-scroll:nth-child(3) {
    transition-delay: 200ms;
}

.features__grid .animate-on-scroll:nth-child(4) {
    transition-delay: 300ms;
}

.features__grid .animate-on-scroll:nth-child(5) {
    transition-delay: 400ms;
}

.features__grid .animate-on-scroll:nth-child(6) {
    transition-delay: 500ms;
}

.steps .animate-on-scroll:nth-child(1) {
    transition-delay: 0ms;
}

.steps .animate-on-scroll:nth-child(2) {
    transition-delay: 150ms;
}

.steps .animate-on-scroll:nth-child(3) {
    transition-delay: 300ms;
}

.steps .animate-on-scroll:nth-child(4) {
    transition-delay: 450ms;
}

.testimonials__grid .animate-on-scroll:nth-child(1) {
    transition-delay: 0ms;
}

.testimonials__grid .animate-on-scroll:nth-child(2) {
    transition-delay: 150ms;
}

.testimonials__grid .animate-on-scroll:nth-child(3) {
    transition-delay: 300ms;
}

.pricing__grid .animate-on-scroll:nth-child(1) {
    transition-delay: 0ms;
}

.pricing__grid .animate-on-scroll:nth-child(2) {
    transition-delay: 150ms;
}

.pricing__grid .animate-on-scroll:nth-child(3) {
    transition-delay: 300ms;
}

.contact__info .contact-info-card:nth-child(1) {
    transition-delay: 0ms;
}

.contact__info .contact-info-card:nth-child(2) {
    transition-delay: 100ms;
}

.contact__info .contact-info-card:nth-child(3) {
    transition-delay: 200ms;
}

.contact__info .contact-info-card:nth-child(4) {
    transition-delay: 300ms;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .animate-on-scroll {
        opacity: 1;
        transform: none;
    }
}

/* ==========================================================================
   15. MEDIA QUERIES
   ========================================================================== */

/* Tablet (768px and up) */
@media (min-width: 768px) {
    :root {
        --container-padding: var(--space-6);
    }

    section {
        padding-block: var(--space-20);
    }

    /* Typography scaling */
    h1 {
        font-size: var(--fs-4xl);
    }

    h2 {
        font-size: var(--fs-3xl);
    }

    /* Header */
    .nav__list {
        display: flex;
    }

    .nav__cta {
        display: inline-flex;
    }

    .hamburger {
        display: none;
    }

    .nav__list.active {
        display: flex;
        position: static;
        flex-direction: row;
        background: none;
        border: none;
        padding: 0;
        animation: none;
    }

    /* Hero */
    .hero {
        padding-block-start: calc(72px + var(--space-16));
        padding-block-end: var(--space-20);
    }

    .hero__title {
        font-size: var(--fs-4xl);
    }

    .hero__cta {
        flex-direction: row;
    }

    /* Features Grid */
    .features__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Steps */
    .steps {
        grid-template-columns: repeat(2, 1fr);
    }

    .step {
        grid-template-columns: auto 1fr;
        align-items: start;
    }

    /* Testimonials Grid */
    .testimonials__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials__grid> :last-child {
        grid-column: 1 / -1;
        max-width: 50%;
        margin-inline: auto;
    }

    /* Pricing Grid */
    .pricing__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Contact Section */
    .contact__grid {
        grid-template-columns: 1fr 1fr;
    }

    .contact-form__row {
        grid-template-columns: 1fr 1fr;
    }

    /* CTA Section */
    .cta-section__title {
        font-size: var(--fs-3xl);
    }

    /* Footer Grid */
    .footer__grid {
        grid-template-columns: 1.5fr repeat(4, 1fr);
    }
}

/* Desktop (1024px and up) */
@media (min-width: 1024px) {
    :root {
        --container-padding: var(--space-8);
    }

    /* Typography scaling */
    h1 {
        font-size: var(--fs-5xl);
    }

    /* Hero */
    .hero__content {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-16);
    }

    .hero__text {
        text-align: start;
    }

    [dir="rtl"] .hero__text {
        text-align: start;
    }

    .hero__title {
        font-size: var(--fs-5xl);
    }

    .hero__subtitle {
        margin-inline: 0;
    }

    .hero__cta {
        justify-content: flex-start;
    }

    .hero__stats {
        justify-content: flex-start;
    }

    /* Features Grid */
    .features__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Steps */
    .steps {
        grid-template-columns: repeat(4, 1fr);
    }

    .step {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .step__icon {
        margin-inline: auto;
    }

    /* Testimonials Grid */
    .testimonials__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .testimonials__grid> :last-child {
        grid-column: auto;
        max-width: none;
    }
}

/* Large Desktop (1280px and up) */
@media (min-width: 1280px) {
    .section-header__title {
        font-size: var(--fs-4xl);
    }
}

/* High resolution displays */
@media (min-resolution: 192dpi) {

    /* Ensure crisp images on retina displays */
    img {
        image-rendering: -webkit-optimize-contrast;
    }
}