/* =============================================
   CSS VARIABLES & RESET
   Modern Premium SaaS Color Palette
   ============================================= */

:root {
    /* Premium Brand Colors - Deep Ocean & Coral */
    --primary-color: #0F62FE;           /* IBM Blue - Professional & Trustworthy */
    --primary-dark: #0043CE;             /* Deeper Blue */
    --primary-light: #4589FF;            /* Lighter Blue */
    --secondary-color: #FF6B9D;          /* Vibrant Coral Pink */
    --secondary-dark: #E8528F;           /* Deeper Coral */
    --accent-color: #8A3FFC;             /* Rich Purple */
    --accent-light: #A56EFF;             /* Light Purple */
    --success-color: #24A148;            /* Fresh Green */
    --warning-color: #F1C21B;            /* Warm Yellow */
    --error-color: #FA4D56;              /* Alert Red */
    
    /* Surface & Background */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8FAFC;
    --bg-tertiary: #F1F5F9;
    --glass-surface: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(148, 163, 184, 0.2);
    --glass-shadow: rgba(15, 98, 254, 0.08);
    
    /* Grid and Decorative */
    --grid-color: rgba(15, 98, 254, 0.04);
    --glow-primary: rgba(15, 98, 254, 0.3);
    --glow-secondary: rgba(255, 107, 157, 0.25);
    --glow-accent: rgba(138, 63, 252, 0.2);
    
    /* Neutral Colors - Slate Palette */
    --white: #FFFFFF;
    --black: #0F172A;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    
    /* Semantic Colors */
    --success: #24A148;
    --warning: #F1C21B;
    --error: #FA4D56;
    --info: #0F62FE;
    
    /* Spacing - Consistent Scale */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;    /* 8px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */
    --spacing-2xl: 3rem;     /* 48px */
    --spacing-3xl: 4rem;     /* 64px */
    --spacing-4xl: 6rem;     /* 96px */
    --spacing-5xl: 8rem;     /* 128px */
    
    /* Typography - Modern Font Stack */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    --font-family-ar: 'Cairo', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-lg: 1.125rem;   /* 18px */
    --font-size-xl: 1.25rem;    /* 20px */
    --font-size-2xl: 1.5rem;    /* 24px */
    --font-size-3xl: 1.875rem;  /* 30px */
    --font-size-4xl: 2.25rem;   /* 36px */
    --font-size-5xl: 3rem;      /* 48px */
    --font-size-6xl: 3.75rem;   /* 60px */
    --font-size-7xl: 4.5rem;    /* 72px */
    
    /* Font Weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    /* Line Heights */
    --line-height-tight: 1.2;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Border Radius - More pronounced */
    --radius-xs: 0.25rem;    /* 4px */
    --radius-sm: 0.5rem;     /* 8px */
    --radius-md: 0.75rem;    /* 12px */
    --radius-lg: 1rem;       /* 16px */
    --radius-xl: 1.25rem;    /* 20px */
    --radius-2xl: 1.75rem;   /* 28px */
    --radius-3xl: 2rem;      /* 32px */
    --radius-full: 9999px;
    
    /* Enhanced Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
    --shadow-sm: 0 2px 4px 0 rgba(15, 23, 42, 0.06), 0 1px 2px 0 rgba(15, 23, 42, 0.03);
    --shadow-md: 0 4px 8px -2px rgba(15, 23, 42, 0.08), 0 2px 4px -1px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.1), 0 4px 8px -2px rgba(15, 23, 42, 0.05);
    --shadow-xl: 0 20px 40px -8px rgba(15, 23, 42, 0.12), 0 8px 16px -4px rgba(15, 23, 42, 0.06);
    --shadow-2xl: 0 32px 64px -12px rgba(15, 23, 42, 0.16), 0 12px 24px -6px rgba(15, 23, 42, 0.08);
    --shadow-glow: 0 0 0 1px rgba(15, 98, 254, 0.1), 0 8px 32px rgba(15, 98, 254, 0.2);
    --shadow-glow-lg: 0 0 0 1px rgba(15, 98, 254, 0.15), 0 16px 48px rgba(15, 98, 254, 0.25);
    
    /* Refined Transitions - Natural Motion */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 400ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-elastic: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
    
    /* Z-Index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-popover: 1050;
    --z-tooltip: 1060;
    
    /* Container */
    --container-max-width: 1280px;
    --container-padding: var(--spacing-lg);
}

/* Reset & Base Styles */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--gray-800);
    background-color: var(--bg-primary);
    background-image:
        radial-gradient(circle at 15% 15%, rgba(15, 98, 254, 0.08), transparent 40%),
        radial-gradient(circle at 85% 10%, rgba(255, 107, 157, 0.06), transparent 35%),
        radial-gradient(circle at 50% 100%, rgba(138, 63, 252, 0.04), transparent 50%),
        linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 30%, var(--bg-secondary) 100%);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    position: relative;
}

/* Ambient Glow Effects - More Refined */
body::before,
body::after {
    content: '';
    position: fixed;
    filter: blur(160px);
    z-index: -1;
    opacity: 0;
    animation: ambientGlow 8s ease-in-out infinite;
    pointer-events: none;
}

body::before {
    top: -10%;
    left: 5%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--glow-primary), transparent 70%);
    animation-delay: 0s;
}

body::after {
    bottom: -15%;
    right: 10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--glow-secondary), transparent 70%);
    animation-delay: 4s;
}

@keyframes ambientGlow {
    0%, 100% {
        opacity: 0.4;
        transform: scale(1) translate(0, 0);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.1) translate(20px, -20px);
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--gray-900);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* Language Modes */
body.lang-ar {
    direction: rtl;
    text-align: right;
    font-family: var(--font-family-ar);
}

body.lang-en {
    direction: ltr;
}

body.lang-ar .navbar {
    flex-direction: row-reverse;
}

body.lang-ar .nav-brand {
    flex-direction: row-reverse;
}

body.lang-ar .lang-toggle {
    margin-left: 0;
    margin-right: var(--spacing-lg);
}

body.lang-ar .nav-menu {
    direction: rtl;
}

body.lang-ar .nav-menu a {
    text-align: right;
}

body.lang-ar .hero-text,
body.lang-ar .section-header,
body.lang-ar .feature-card,
body.lang-ar .pricing-card,
body.lang-ar .testimonial-card,
body.lang-ar .cta-content,
body.lang-ar .footer-content,
body.lang-ar .footer-bottom {
    text-align: right;
}

body.lang-ar .hero-content,
body.lang-ar .features-grid,
body.lang-ar .pricing-grid,
body.lang-ar .testimonials-grid,
body.lang-ar .footer-content {
    direction: rtl;
}

body.lang-ar .hero-buttons,
body.lang-ar .hero-stats,
body.lang-ar .cta-buttons {
    justify-content: flex-end;
}

body.lang-ar .hero-buttons .btn,
body.lang-ar .cta-buttons .btn {
    text-align: center;
}

/* =============================================
   UTILITY CLASSES
   ============================================= */

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 50%, var(--secondary-color) 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* Enhanced Animations with Natural Easing */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    33% {
        transform: translateY(-20px) rotate(2deg);
    }
    66% {
        transform: translateY(-10px) rotate(-2deg);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* Scroll-triggered animations */
[data-animate="fade-in-up"] {
    opacity: 0;
    transform: translateY(40px);
    animation: fadeInUp 0.8s var(--ease-out-expo) forwards;
}

[data-animate="fade-in-up"][data-delay="100"] {
    animation-delay: 0.1s;
}

[data-animate="fade-in-up"][data-delay="200"] {
    animation-delay: 0.2s;
}

[data-animate="fade-in-up"][data-delay="300"] {
    animation-delay: 0.3s;
}

/* =============================================
   BUTTONS - Enhanced with Micro-interactions
   ============================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.875rem 1.75rem;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    letter-spacing: -0.01em;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-large {
    padding: 1.125rem 2.25rem;
    font-size: var(--font-size-lg);
    border-radius: var(--radius-xl);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    box-shadow: var(--shadow-md), 0 0 0 0 var(--glow-primary);
    position: relative;
    z-index: 1;
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
    border-radius: inherit;
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: -1;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-glow-lg), var(--shadow-xl);
}

.btn-primary:hover::after {
    opacity: 1;
}

.btn-primary:active {
    transform: translateY(-1px) scale(0.98);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
    color: var(--gray-800);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--gray-200) 0%, var(--gray-300) 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    border: 2px solid var(--gray-300);
    color: var(--gray-800);
    background-color: transparent;
}

.btn-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: rgba(15, 98, 254, 0.05);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.btn-white {
    background-color: var(--white);
    color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.btn-white:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-xl);
    background: var(--white);
}

.btn-outline-white {
    border: 2px solid rgba(255, 255, 255, 0.8);
    color: var(--white);
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
}

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

/* Button Icon Animation */
.btn svg {
    transition: transform var(--transition-base);
}

.btn:hover svg {
    transform: translateX(4px);
}

body.lang-ar .btn:hover svg {
    transform: translateX(-4px);
}

/* =============================================
   HEADER & NAVIGATION - Premium Glass Effect
   ============================================= */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(148, 163, 184, 0.15);
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.92);
    box-shadow: var(--shadow-md);
    border-bottom-color: rgba(148, 163, 184, 0.2);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    min-height: 72px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--gray-900);
    transition: transform var(--transition-base);
}

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

.logo svg {
    transition: transform var(--transition-base);
}

.logo:hover svg {
    transform: rotate(10deg);
}

.logo img {
    transition: transform var(--transition-base);
    border-radius: var(--radius-md);
}

.logo:hover img {
    transform: rotate(5deg) scale(1.05);
}

.logo span {
    display: none;
}

@media (min-width: 768px) {
    .logo span {
        display: inline;
    }
}

.lang-toggle {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px;
    margin-left: var(--spacing-lg);
    background: rgba(248, 250, 252, 0.8);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-xs);
    backdrop-filter: blur(8px);
    transition: box-shadow var(--transition-base);
}

.lang-toggle:hover {
    box-shadow: var(--shadow-sm);
}

.lang-btn {
    min-width: 44px;
    padding: 8px 12px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--gray-700);
    transition: all var(--transition-base);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.lang-btn:hover {
    color: var(--gray-900);
}

.lang-btn.active {
    color: var(--white);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    box-shadow: var(--shadow-glow);
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-2xl);
}

.nav-menu a {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--gray-700);
    position: relative;
    transition: color var(--transition-base);
    padding: var(--spacing-xs) 0;
}

.nav-menu a:not(.btn):hover {
    color: var(--primary-color);
}

.nav-menu a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 100%);
    transition: width var(--transition-base);
    border-radius: var(--radius-full);
}

.nav-menu a:not(.btn):hover::after,
.nav-menu a:not(.btn).active::after {
    width: 100%;
}

body.lang-ar .nav-menu a:not(.btn)::after {
    left: auto;
    right: 0;
}

/* Nav CTA Button - White & Bold */
.nav-menu .nav-cta {
    color: var(--white) !important;
    font-weight: var(--font-weight-bold);
}

.nav-menu .nav-cta::after {
    display: none;
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    cursor: pointer;
    z-index: calc(var(--z-fixed) + 1);
}

.hamburger,
.hamburger::before,
.hamburger::after {
    width: 25px;
    height: 2px;
    background-color: var(--gray-800);
    transition: all var(--transition-base);
}

.hamburger {
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

.nav-toggle[aria-expanded="true"] .hamburger {
    background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    transform: rotate(-45deg);
    bottom: 0;
}

/* =============================================
   HERO SECTION - Emotionally Engaging Premium Design
   ============================================= */

.hero {
    position: relative;
    padding-top: calc(72px + var(--spacing-4xl));
    padding-bottom: var(--spacing-5xl);
    background: 
        radial-gradient(circle at 20% 20%, rgba(15, 98, 254, 0.1), transparent 45%),
        radial-gradient(circle at 80% 15%, rgba(255, 107, 157, 0.08), transparent 40%),
        radial-gradient(circle at 50% 90%, rgba(138, 63, 252, 0.06), transparent 45%),
        linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 35%, var(--bg-secondary) 100%);
    overflow: hidden;
}

/* Animated Grid Background */
.hero::before {
    content: '';
    position: absolute;
    inset: 8% 5% auto 5%;
    height: 70%;
    background: 
        linear-gradient(120deg, rgba(15, 98, 254, 0.12), rgba(138, 63, 252, 0.08));
    filter: blur(100px);
    z-index: 0;
    animation: heroGlow 10s ease-in-out infinite;
}

@keyframes heroGlow {
    0%, 100% {
        opacity: 0.6;
        transform: scale(1) translateY(0);
    }
    50% {
        opacity: 0.9;
        transform: scale(1.05) translateY(-10px);
    }
}

.hero::after {
    content: '';
    position: absolute;
    inset: 10% 8% 15% 8%;
    background-image: 
        linear-gradient(90deg, var(--grid-color) 1.5px, transparent 0),
        linear-gradient(0deg, var(--grid-color) 1.5px, transparent 0);
    background-size: 60px 60px;
    border-radius: var(--radius-3xl);
    opacity: 0.4;
    z-index: 0;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--spacing-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    max-width: 650px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
    letter-spacing: -0.03em;
    animation: fadeInUp 0.8s var(--ease-out-expo) forwards;
}

.hero-description {
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-2xl);
    font-weight: var(--font-weight-normal);
    animation: fadeInUp 0.8s var(--ease-out-expo) 0.1s forwards;
    opacity: 0;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.8s var(--ease-out-expo) 0.2s forwards;
    opacity: 0;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-3xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--gray-200);
    animation: fadeInUp 0.8s var(--ease-out-expo) 0.3s forwards;
    opacity: 0;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    position: relative;
}

.stat::before {
    content: '';
    position: absolute;
    left: -16px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 0;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-full);
    transition: height 0.6s var(--ease-out-expo) 0.5s;
}

.stat:hover::before {
    height: 70%;
}

.stat strong {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-extrabold);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.stat span {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    font-weight: var(--font-weight-medium);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 1;
}

.visual-placeholder {
    width: 100%;
    max-width: 550px;
    animation: float 8s ease-in-out infinite, fadeInUp 1s var(--ease-out-expo) 0.4s forwards;
    filter: drop-shadow(0 24px 48px rgba(15, 98, 254, 0.2));
    opacity: 0;
    position: relative;
}

.visual-placeholder::before {
    content: '';
    position: absolute;
    inset: -20px;
    background: radial-gradient(circle, var(--glow-primary), transparent 70%);
    opacity: 0.3;
    filter: blur(40px);
    z-index: -1;
    animation: pulse 4s ease-in-out infinite;
}

/* =============================================
   SECTION STYLES
   ============================================= */

.section-header {
    text-align: center;
    max-width: 750px;
    margin: 0 auto var(--spacing-4xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
    letter-spacing: -0.02em;
    line-height: var(--line-height-tight);
}

.section-description {
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    line-height: var(--line-height-relaxed);
    font-weight: var(--font-weight-normal);
}

/* =============================================
   FEATURES SECTION - Enhanced Card Interactions
   ============================================= */

.features {
    padding: var(--spacing-5xl) 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
    position: relative;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.feature-card {
    padding: var(--spacing-2xl);
    background: var(--glass-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-slow);
    cursor: pointer;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

/* Hover glow effect */
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(15, 98, 254, 0.1), transparent);
    transition: left 0.6s;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 98, 254, 0.05), rgba(138, 63, 252, 0.05));
    opacity: 0;
    transition: opacity var(--transition-base);
    border-radius: inherit;
    z-index: 0;
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-glow-lg), var(--shadow-xl);
    border-color: rgba(15, 98, 254, 0.3);
}

.feature-card:hover::after {
    opacity: 1;
}

.feature-card > * {
    position: relative;
    z-index: 1;
}

.feature-icon {
    margin-bottom: var(--spacing-lg);
    transition: transform var(--transition-bounce);
    display: inline-block;
}

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

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
    letter-spacing: -0.01em;
    transition: color var(--transition-base);
}

.feature-card:hover .feature-title {
    color: var(--primary-color);
}

.feature-description {
    font-size: var(--font-size-base);
    color: var(--gray-600);
    line-height: var(--line-height-relaxed);
}

/* =============================================
   TESTIMONIALS SECTION - Premium Social Proof
   ============================================= */

.testimonials {
    padding: var(--spacing-5xl) 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
}

.company-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-4xl);
    margin-bottom: var(--spacing-4xl);
    padding: var(--spacing-3xl) 0;
}

.company-logo {
    opacity: 0.5;
    transition: all var(--transition-base);
    filter: grayscale(1);
}

.company-logo:hover {
    opacity: 1;
    filter: grayscale(0);
    transform: scale(1.1);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-2xl);
}

.testimonial-card {
    padding: var(--spacing-2xl);
    background: var(--glass-surface);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-slow);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    right: 20px;
    font-size: 120px;
    font-weight: var(--font-weight-bold);
    color: rgba(15, 98, 254, 0.06);
    line-height: 1;
    z-index: 0;
    font-family: Georgia, serif;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow), var(--shadow-xl);
    border-color: rgba(15, 98, 254, 0.2);
}

.testimonial-card > * {
    position: relative;
    z-index: 1;
}

.testimonial-rating {
    color: var(--warning-color);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    filter: drop-shadow(0 2px 4px rgba(241, 194, 27, 0.3));
}

.testimonial-text {
    font-size: var(--font-size-base);
    color: var(--gray-700);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-xl);
    font-style: normal;
    font-weight: var(--font-weight-normal);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
}

.author-avatar {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
}

.testimonial-card:hover .author-avatar {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

.author-name {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--gray-900);
    font-style: normal;
    margin-bottom: var(--spacing-xs);
}

.author-role {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

/* =============================================
   PRICING SECTION - Premium Cards with Micro-interactions
   ============================================= */

.pricing {
    padding: var(--spacing-5xl) 0;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 50%, var(--bg-secondary) 100%);
    position: relative;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-2xl);
    align-items: start;
}

.pricing-card {
    position: relative;
    padding: var(--spacing-2xl);
    background: var(--glass-surface);
    border: 1.5px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-slow);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--gray-300), var(--gray-200));
    transition: all var(--transition-base);
}

.pricing-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: rgba(15, 98, 254, 0.3);
}

.pricing-card:hover::before {
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color), var(--secondary-color));
    height: 5px;
}

.pricing-card-featured {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow-lg), var(--shadow-lg);
    transform: scale(1.05);
}

.pricing-card-featured::before {
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color), var(--secondary-color));
    background-size: 200% 100%;
    animation: shimmer 3s linear infinite;
    height: 5px;
}

.pricing-card-featured:hover {
    transform: translateY(-10px) scale(1.08);
    box-shadow: var(--shadow-glow-lg), var(--shadow-2xl);
}

.pricing-card-featured::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 98, 254, 0.08), rgba(138, 63, 252, 0.06));
    opacity: 1;
    z-index: 0;
    border-radius: inherit;
}

.pricing-card-featured > * {
    position: relative;
    z-index: 1;
}

.pricing-badge {
    position: absolute;
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    font-size: 11px;
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    box-shadow: var(--shadow-glow);
    animation: pulse 2s ease-in-out infinite;
    white-space: nowrap;
    z-index: 10;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.plan-name {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
    letter-spacing: -0.01em;
}

.plan-description {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    font-weight: var(--font-weight-medium);
}

.pricing-price {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 2px solid var(--gray-200);
}

.currency {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    color: var(--gray-700);
    vertical-align: super;
}

.amount {
    font-size: clamp(2.5rem, 4vw, 3.75rem);
    font-weight: var(--font-weight-extrabold);
    background: linear-gradient(135deg, var(--gray-900), var(--gray-700));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.pricing-card-featured .amount {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.period {
    font-size: var(--font-size-base);
    color: var(--gray-600);
    font-weight: var(--font-weight-medium);
}

.pricing-features {
    margin-bottom: var(--spacing-2xl);
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-base);
    color: var(--gray-700);
    transition: transform var(--transition-base);
}

.pricing-features li:hover {
    transform: translateX(4px);
}

body.lang-ar .pricing-features li:hover {
    transform: translateX(-4px);
}

.pricing-features svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.pricing-card .btn {
    width: 100%;
    margin-top: var(--spacing-md);
}

/* =============================================
   CALL TO ACTION SECTION - Vibrant & Engaging
   ============================================= */

.cta {
    padding: var(--spacing-5xl) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 50%, var(--primary-dark) 100%);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15), transparent 60%);
    border-radius: 50%;
    animation: float 12s ease-in-out infinite;
}

.cta::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1), transparent 60%);
    border-radius: 50%;
    animation: float 10s ease-in-out infinite reverse;
}

.cta-content {
    text-align: center;
    max-width: 850px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--spacing-lg);
    color: var(--white);
    letter-spacing: -0.02em;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.cta-description {
    font-size: var(--font-size-xl);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.95;
    font-weight: var(--font-weight-normal);
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
}

/* =============================================
   FOOTER - Professional & Organized
   ============================================= */

.footer {
    padding: var(--spacing-5xl) 0 var(--spacing-2xl);
    background: linear-gradient(180deg, var(--gray-900) 0%, var(--black) 100%);
    color: var(--gray-400);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(15, 98, 254, 0.3), transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-4xl);
    margin-bottom: var(--spacing-4xl);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.footer-description {
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--gray-500);
    margin-bottom: var(--spacing-xl);
    max-width: 380px;
}

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

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(148, 163, 184, 0.1);
    border-radius: var(--radius-lg);
    color: var(--gray-400);
    transition: all var(--transition-base);
    border: 1px solid rgba(148, 163, 184, 0.2);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    transform: translateY(-3px);
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.footer-heading {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--white);
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    transition: all var(--transition-base);
    padding-left: 0;
    position: relative;
}

.footer-links a::before {
    content: '';
    position: absolute;
    left: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-base);
}

.footer-links a:hover {
    color: var(--white);
    padding-left: 12px;
}

.footer-links a:hover::before {
    width: 6px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-2xl);
    border-top: 1px solid rgba(148, 163, 184, 0.1);
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

/* =============================================
   BACK TO TOP BUTTON - Smooth & Modern
   ============================================= */

.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow-lg), var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.back-to-top::before {
    content: '';
    position: absolute;
    inset: -4px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-full);
    opacity: 0;
    filter: blur(12px);
    transition: opacity var(--transition-base);
    z-index: -1;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    animation: bounceIn 0.6s var(--ease-elastic);
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.1);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.back-to-top:hover {
    transform: translateY(-6px) scale(1.05);
    box-shadow: var(--shadow-glow-lg), var(--shadow-xl);
}

.back-to-top:hover::before {
    opacity: 0.6;
}

.back-to-top:active {
    transform: translateY(-3px) scale(1);
}

.back-to-top svg {
    transition: transform var(--transition-base);
}

.back-to-top:hover svg {
    transform: translateY(-2px);
}

/* =============================================
   RESPONSIVE DESIGN - MOBILE FIRST
   ============================================= */

/* Tablets and below (max-width: 768px) */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2rem;      /* 32px */
        --font-size-4xl: 1.75rem;   /* 28px */
        --font-size-3xl: 1.5rem;    /* 24px */
        --spacing-4xl: 3rem;        /* 48px */
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 350px;
        height: 100vh;
        background-color: var(--white);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: 80px var(--spacing-2xl) var(--spacing-2xl);
        box-shadow: var(--shadow-2xl);
        transition: right var(--transition-slow);
        gap: var(--spacing-md);
        overflow-y: auto;
    }

    .nav-menu.active {
        right: 0;
    }

    body.lang-ar .nav-menu {
        right: auto;
        left: -100%;
    }

    body.lang-ar .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        width: 100%;
        padding: var(--spacing-md) 0;
        font-size: var(--font-size-lg);
    }

    .nav-menu .btn {
        width: 100%;
        margin-top: var(--spacing-md);
    }

    .nav-toggle {
        display: flex;
    }

    .lang-toggle {
        margin-left: 0;
    }

    body.lang-ar .lang-toggle {
        margin-right: 0;
    }

    .logo span {
        display: inline;
    }

    .hero {
        padding-top: calc(70px + var(--spacing-2xl));
        padding-bottom: var(--spacing-2xl);
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .hero-text {
        text-align: center;
        max-width: 100%;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-description {
        font-size: var(--font-size-lg);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        justify-content: space-around;
        gap: var(--spacing-md);
    }

    .stat {
        align-items: center;
        text-align: center;
    }

    .features-grid,
    .testimonials-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .company-logos {
        gap: var(--spacing-xl);
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .cta-title {
        font-size: var(--font-size-3xl);
    }

    .cta-description {
        font-size: var(--font-size-base);
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .cta-buttons .btn {
        width: 100%;
    }
}

/* Small mobile devices (max-width: 480px) */
@media (max-width: 480px) {
    :root {
        --container-padding: var(--spacing-md);
        --spacing-4xl: 2rem;
        --spacing-3xl: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .features-grid {
        gap: var(--spacing-lg);
    }

    .feature-card {
        padding: var(--spacing-lg);
    }

    .pricing-grid,
    .testimonials-grid {
        gap: var(--spacing-lg);
    }

    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }
}

/* Large screens (min-width: 1280px) */
@media (min-width: 1280px) {
    .hero-title {
        font-size: var(--font-size-6xl);
    }

    .section-title {
        font-size: var(--font-size-5xl);
    }
}

/* Accessibility: Reduced Motion */
@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;
    }

    .visual-placeholder {
        animation: none;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .btn-outline,
    .btn-outline-white {
        border-width: 3px;
    }

    .feature-card,
    .testimonial-card,
    .pricing-card {
        border-width: 2px;
    }
}

/* Dark Mode Support (optional) */
@media (prefers-color-scheme: dark) {
    /* Uncomment to enable dark mode support
    :root {
        --white: #1a1a1a;
        --gray-50: #1f2937;
        --gray-900: #f9fafb;
        --gray-800: #f3f4f6;
        --gray-700: #e5e7eb;
        --gray-600: #d1d5db;
    }
    
    body {
        background-color: var(--gray-900);
        color: var(--gray-100);
    }
    */
}

/* Print Styles */
@media print {
    .header,
    .nav-toggle,
    .back-to-top,
    .cta {
        display: none;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
    }

    .hero,
    .features,
    .testimonials,
    .pricing {
        page-break-inside: avoid;
    }
}