/* Academic Wise Help - Modern CSS Framework */
/* Ultra-modern design with macOS-inspired aesthetics */

/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - Preserved from original */
    --primary-color: #007AFF;
    --secondary-color: #5856D6;
    --background-color: #FFFFFF;
    --surface-color: #F2F2F7;
    --text-color: #000000;
    --text-secondary: #6C6C70;
    --border-color: #E5E5E7;
    
    /* Enhanced shadows for depth */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.16);
    --shadow-2xl: 0 24px 64px rgba(0,0,0,0.20);
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);
    --blur-strength: blur(10px);
    
    /* Enhanced spacing system */
    --spacing-2xs: 2px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;
    
    /* Refined border radius */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;
    
    /* Modern typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
    
    /* Refined font sizes */
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 30px;
    --font-size-4xl: 36px;
    --font-size-5xl: 48px;
    --font-size-6xl: 60px;
    --font-size-7xl: 72px;
    
    /* Font weights */
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-black: 900;
    
    /* Line heights */
    --line-height-tight: 1.2;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    --line-height-loose: 2;
    
    /* Enhanced transitions */
    --transition-fast: 150ms cubic-bezier(0.23, 1, 0.32, 1);
    --transition-normal: 250ms cubic-bezier(0.23, 1, 0.32, 1);
    --transition-slow: 400ms cubic-bezier(0.23, 1, 0.32, 1);
    --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Base HTML and Body */
html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-regular);
    line-height: var(--line-height-normal);
    color: var(--text-color);
    background-color: var(--background-color);
    direction: rtl;
    text-align: right;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-feature-settings: "kern" 1;
}

/* Modern background pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(0, 122, 255, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(88, 86, 214, 0.02) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Typography Scale */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-semibold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(var(--font-size-4xl), 5vw, var(--font-size-6xl));
    font-weight: var(--font-bold);
    background: linear-gradient(135deg, var(--text-color) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: clamp(var(--font-size-3xl), 4vw, var(--font-size-5xl));
    font-weight: var(--font-semibold);
}

h3 {
    font-size: clamp(var(--font-size-2xl), 3vw, var(--font-size-4xl));
}

h4 {
    font-size: clamp(var(--font-size-xl), 2.5vw, var(--font-size-3xl));
}

h5 {
    font-size: var(--font-size-xl);
}

h6 {
    font-size: var(--font-size-lg);
}

p {
    margin-bottom: var(--spacing-lg);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
}

strong {
    font-weight: var(--font-semibold);
    color: var(--text-color);
}

/* Modern Navigation */
.nav {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-strength);
    -webkit-backdrop-filter: var(--blur-strength);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-brand {
    font-size: var(--font-size-xl);
    font-weight: var(--font-bold);
    color: var(--text-color);
    text-decoration: none;
    letter-spacing: -0.5px;
    transition: opacity var(--transition-fast);
}

.nav-brand:hover {
    opacity: 0.7;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-2xl);
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: var(--font-medium);
    font-size: var(--font-size-sm);
    transition: all var(--transition-normal);
    position: relative;
    padding: var(--spacing-sm) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-normal);
}

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

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

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

/* Hero Section with Modern Gradient */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
    padding: var(--spacing-4xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 30px 30px;
    animation: heroPattern 20s linear infinite;
}

@keyframes heroPattern {
    0% { transform: translate(0, 0); }
    100% { transform: translate(30px, 30px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    color: white;
    margin-bottom: var(--spacing-lg);
    font-size: clamp(var(--font-size-4xl), 6vw, var(--font-size-7xl));
    background: none;
    -webkit-text-fill-color: white;
}

.hero p {
    font-size: clamp(var(--font-size-lg), 2vw, var(--font-size-xl));
    margin-bottom: var(--spacing-2xl);
    color: rgba(255,255,255,0.9);
    font-weight: var(--font-regular);
}

/* Modern Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: var(--font-medium);
    line-height: 1;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-normal);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

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

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 14px rgba(0, 122, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 122, 255, 0.4);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
    box-shadow: 0 4px 14px rgba(88, 86, 214, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(88, 86, 214, 0.4);
}

.btn-outline {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-strength);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
}

/* Icon System */
.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
}

.icon-lg {
    width: 48px;
    height: 48px;
}

.icon-xl {
    width: 64px;
    height: 64px;
}

/* Modern Cards with Glassmorphism */
.card {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-strength);
    -webkit-backdrop-filter: var(--blur-strength);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2xl);
    transition: all var(--transition-normal);
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.4) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-slow);
    pointer-events: none;
}

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

.card:hover::before {
    opacity: 1;
}

/* Trust Indicators Modern Design */
.trust-indicators {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-3xl) 0;
}

.trust-indicator {
    background: rgba(255,255,255,0.5);
    backdrop-filter: blur(5px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-normal);
}

.trust-indicator:hover {
    background: rgba(255,255,255,0.8);
    transform: translateY(-4px);
}

.trust-indicator .icon-wrapper {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
    box-shadow: var(--shadow-md);
}

.trust-indicator h4 {
    color: white;
    font-weight: var(--font-semibold);
    margin-bottom: var(--spacing-sm);
}

.trust-indicator p {
    color: rgba(255,255,255,0.8);
    font-size: var(--font-size-sm);
}

/* Contact Methods Modern */
.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.contact-method {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.contact-method:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.contact-method .icon-wrapper {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--spacing-lg);
    background: rgba(255,255,255,0.2);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    transition: all var(--transition-normal);
}

.contact-method:hover .icon-wrapper {
    background: rgba(255,255,255,0.3);
    transform: rotate(10deg);
}

.contact-method h4 {
    color: white;
    margin-bottom: var(--spacing-sm);
}

.contact-method p {
    color: rgba(255,255,255,0.9);
    margin-bottom: var(--spacing-sm);
}

.contact-method .text-secondary {
    color: rgba(255,255,255,0.7);
    font-size: var(--font-size-sm);
}

/* FAQ Modern Accordion */
.faq-item {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    background: var(--surface-color);
    padding: var(--spacing-lg) var(--spacing-xl);
    cursor: pointer;
    font-weight: var(--font-medium);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all var(--transition-normal);
}

.faq-question:hover {
    background: #E8E8ED;
}

.faq-question .icon {
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-question .icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item.active .faq-answer {
    padding: var(--spacing-lg) var(--spacing-xl);
    max-height: 500px;
}

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

/* Modern Form Inputs */
.form-group {
    margin-bottom: var(--spacing-xl);
}

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

.form-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    background-color: var(--background-color);
    transition: all var(--transition-normal);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.1);
    background-color: var(--surface-color);
}

.form-textarea {
    min-height: 140px;
    resize: vertical;
}

/* Modern Footer */
.footer {
    background: linear-gradient(180deg, var(--text-color) 0%, #1a1a1a 100%);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-4xl);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
    color: white;
    margin-bottom: var(--spacing-lg);
    font-weight: var(--font-semibold);
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    transition: color var(--transition-normal);
    font-size: var(--font-size-sm);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: var(--font-size-sm);
}

/* Container and Grid Updates */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-4xl) 0;
}

.section-sm {
    padding: var(--spacing-3xl) 0;
}

/* Grid System */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: var(--spacing-lg);
    }
    
    .hero {
        padding: var(--spacing-3xl) 0;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .trust-indicators {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-methods {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .nav-container {
        height: 64px;
    }
    
    .nav-links {
        gap: var(--spacing-md);
        font-size: var(--font-size-xs);
    }
    
    .trust-indicators,
    .contact-methods {
        grid-template-columns: 1fr;
    }
    
    .card {
        padding: var(--spacing-xl);
    }
}

/* Utility Classes */
.flex { display: flex; }
.justify-center { justify-content: center; }
.items-center { align-items: center; }
.text-center { text-align: center; }
.gap-md { gap: var(--spacing-md); }
.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-xl { margin-bottom: var(--spacing-xl); }

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

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease-out;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow-md: 0 4px 12px rgba(0,0,0,0.2);
        --shadow-lg: 0 8px 24px rgba(0,0,0,0.3);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}