/* ============================================
   LB Design - Landing Page Styles
   Modern, Clean & Conversion-Focused
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #0ea5e9;
    --accent: #f59e0b;
    --success: #10b981;
    --danger: #ef4444;
    
    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
    --gradient-dark: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Sora', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

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

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

body {
    font-family: var(--font-primary);
    font-size: clamp(0.95rem, 1.5vw, 1.05rem);
    line-height: 1.7;
    color: var(--gray-700);
    background-color: var(--white);
    overflow-x: hidden;
    font-weight: 400;
    letter-spacing: 0.3px;
}

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

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

ul, ol {
    list-style: none;
}

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--gray-900);
    letter-spacing: -0.5px;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 700; }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); font-weight: 700; }
h4 { font-size: 1.25rem; font-weight: 600; }

.highlight {
    color: var(--primary);
}

.highlight-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight-white {
    color: var(--white);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

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

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

.btn-large {
    padding: 18px 36px;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header p {
    max-width: 600px;
    margin: 15px auto 0;
    color: var(--gray-500);
    font-size: 1.125rem;
}

.section-header.light h2,
.section-header.light p {
    color: var(--white);
}

.section-badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.section-header.light .section-badge {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
}

/* ============================================
   Urgency Bar
   ============================================ */
.urgency-bar {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: var(--white);
    padding: 8px 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.urgency-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 0.9rem;
    flex-wrap: wrap;
}

.urgency-icon {
    font-size: 1rem;
    color: var(--accent);
    animation: pulse-glow 1.5s ease-in-out infinite;
    display: flex;
    align-items: center;
}

.urgency-text {
    color: rgba(255, 255, 255, 0.95);
    font-weight: 500;
}

.urgency-text strong {
    color: var(--accent);
    font-weight: 700;
    font-size: 0.95rem;
    font-family: var(--font-heading);
}

.urgency-divider {
    color: rgba(255, 255, 255, 0.3);
}

.urgency-timer-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
}

.urgency-timer {
    font-weight: 700;
    font-family: 'Courier New', monospace;
    color: var(--accent);
    animation: pulse-glow 1.5s ease-in-out infinite;
    padding: 3px 10px;
    background: rgba(245, 158, 11, 0.15);
    border-radius: 4px;
    border: 1px solid rgba(245, 158, 11, 0.3);
    text-shadow: 0 0 8px rgba(245, 158, 11, 0.6);
}

@keyframes pulse-glow {
    0%, 100% { opacity: 1; text-shadow: 0 0 8px rgba(245, 158, 11, 0.8); }
    50% { opacity: 0.7; text-shadow: 0 0 15px rgba(245, 158, 11, 1); }
}

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

/* Responsive Urgency Bar */
@media (max-width: 1200px) {
    .urgency-content {
        font-size: 0.85rem;
        gap: 10px;
    }
    
    .urgency-text strong {
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .urgency-bar {
        padding: 6px 0;
    }
    
    .urgency-content {
        font-size: 0.75rem;
        gap: 6px;
    }
    
    .urgency-icon {
        font-size: 0.9rem;
    }
    
    .urgency-text strong {
        font-size: 0.8rem;
    }
    
    .urgency-timer {
        font-size: 0.75rem;
        padding: 2px 6px;
    }
    
    .urgency-timer-label {
        font-size: 0.7rem;
    }
}

@media (max-width: 480px) {
    .urgency-bar {
        padding: 5px 0;
    }
    
    .urgency-content {
        font-size: 0.7rem;
        gap: 4px;
    }
    
    .urgency-icon {
        font-size: 0.8rem;
    }
    
    .urgency-text strong {
        font-size: 0.75rem;
    }
    
    .urgency-divider {
        display: none;
    }
    
    .urgency-timer-label {
        display: none;
    }
    
    .urgency-timer {
        font-size: 0.7rem;
        padding: 1px 4px;
    }
}

/* ============================================
   Header
   ============================================ */
.header {
    position: fixed;
    top: 38px;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
}


.logo-img {
    height: 32px;
    width: auto;
    object-fit: contain;
}

.logo-footer {
    height: 36px;
    filter: brightness(0) invert(1);
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav a {
    color: var(--gray-600);
    font-weight: 500;
    font-size: 0.95rem;
}

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

.btn-header {
    padding: 10px 20px;
    background: var(--gradient-primary);
    color: var(--white);
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: var(--radius);
}

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

.mobile-menu-btn {
    display: none !important;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    padding: 180px 0 120px;
    background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(14, 165, 233, 0.1) 0%, transparent 50%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text .badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.hero-text .badge i {
    color: var(--primary);
}

.hero-text h1 {
    margin-bottom: 24px;
    line-height: 1.15;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 32px;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: var(--gray-700);
}

.feature-item i {
    color: var(--success);
    font-size: 1.125rem;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.hero-trust {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.875rem;
    color: var(--gray-500);
}

.hero-trust .stars {
    display: flex;
    gap: 2px;
}

.hero-trust .stars i {
    color: var(--accent);
    font-size: 0.875rem;
}

/* Hero Visual */
.hero-visual {
    position: relative;
}

.hero-image-wrapper {
    position: relative;
}

.hero-image,
.hero-video {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    object-fit: cover;
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    animation: float 3s ease-in-out infinite;
}

.floating-card i {
    font-size: 1.5rem;
    color: var(--primary);
}

.floating-card strong {
    display: block;
    font-size: 1.25rem;
    color: var(--gray-900);
}

.floating-card span {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.floating-card.card-1 {
    top: 0%;
    left: -85px;
    animation-delay: 0s;
}

.floating-card.card-2 {
    bottom: 0%;
    right: -100px;
    animation-delay: 1.5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: auto;
}

/* ============================================
   Social Proof Bar
   ============================================ */
.social-proof {
    background: var(--white);
    padding: 40px 0;
    border-bottom: 1px solid var(--gray-100);
}

.proof-items {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.proof-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--gray-50);
    border-radius: var(--radius);
    transition: var(--transition);
}

.proof-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.proof-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: var(--radius-sm);
    font-size: 1.5rem;
    color: #4285f4;
    box-shadow: var(--shadow-sm);
}

.proof-icon.green { color: var(--success); }
.proof-icon.blue { color: var(--secondary); }
.proof-icon.purple { color: var(--primary); }

.proof-content {
    display: flex;
    flex-direction: column;
}

.proof-content strong {
    font-size: 1.125rem;
    color: var(--gray-900);
}

.proof-content span {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.proof-stars {
    display: flex;
    gap: 2px;
    color: var(--accent);
    font-size: 0.875rem;
}

/* ============================================
   Benefits Section
   ============================================ */
.benefits {
    padding: var(--section-padding);
    background: var(--white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.benefit-card {
    padding: 40px 30px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.benefit-card:hover {
    background: var(--white);
    border-color: var(--gray-200);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.benefit-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    font-size: 1.75rem;
    color: var(--white);
    margin: 0 auto 24px;
}

.benefit-card h3 {
    margin-bottom: 12px;
    color: var(--gray-900);
}

.benefit-card p {
    color: var(--gray-500);
    font-size: 0.95rem;
}

/* ============================================
   Target Audience Section
   ============================================ */
.target-audience {
    padding: var(--section-padding);
    background: var(--gray-50);
}

.audience-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.audience-text h2 {
    margin-bottom: 32px;
}

.audience-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.audience-list li {
    display: flex;
    gap: 16px;
}

.audience-list li i {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    font-size: 0.75rem;
    flex-shrink: 0;
    margin-top: 4px;
}

.audience-list li strong {
    display: block;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.audience-list li p {
    color: var(--gray-500);
    font-size: 0.95rem;
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.image-grid img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.image-grid img:hover {
    transform: scale(1.02);
}

/* ============================================
   Modules Section
   ============================================ */
.modules {
    padding: var(--section-padding);
    background: var(--white);
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.module-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: var(--gray-50);
    border-radius: var(--radius);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.module-card:hover {
    background: var(--white);
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.module-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.module-card.bonus {
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    text-align: center;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.05) 0%, rgba(245, 158, 11, 0.02) 100%);
    border: 2px solid rgba(245, 158, 11, 0.2);
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.module-card.bonus::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.1) 0%, transparent 70%);
    transform: translate(30%, -30%);
}

.module-card.bonus:hover {
    transform: translateY(-4px);
    border-color: rgba(245, 158, 11, 0.4);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.15);
}

.module-card.bonus .module-number {
    background: linear-gradient(135deg, var(--accent) 0%, #fbbf24 100%);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
    font-size: 1.1rem;
}

.module-card.bonus .module-content h4 {
    color: var(--accent);
    font-weight: 700;
    font-size: 1.05rem;
}

.module-card.bonus .module-content p {
    color: var(--gray-600);
    font-weight: 500;
}

.module-content h4 {
    font-size: 1rem;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.module-content p {
    font-size: 0.85rem;
    color: var(--gray-500);
}

/* ============================================
   Bonus Section
   ============================================ */
.bonus {
    padding: var(--section-padding);
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.bonus::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.2) 0%, transparent 40%);
}

.bonus .container {
    position: relative;
    z-index: 1;
}

.bonus-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.bonus-card {
    padding: 30px 24px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
    position: relative;
    backdrop-filter: blur(10px);
}

.bonus-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.bonus-card.featured {
    background: rgba(245, 158, 11, 0.15);
    border-color: var(--accent);
}

.bonus-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    font-size: 1.5rem;
    color: var(--white);
    margin: 0 auto 20px;
}

.bonus-card.featured .bonus-icon {
    background: var(--accent);
}

.bonus-card h4 {
    color: var(--white);
    margin-bottom: 8px;
    font-size: 1rem;
}

.bonus-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
}

.bonus-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 4px 10px;
    background: var(--accent);
    color: var(--gray-900);
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: var(--radius-full);
}

/* ============================================
   Professor Section
   ============================================ */
.professor {
    padding: var(--section-padding);
    background: var(--white);
}

.professor-content {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 60px;
    align-items: center;
}

.professor-image {
    position: relative;
}

.professor-image img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.professor-badge {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
}

.professor-badge i {
    color: var(--success);
}

.professor-text h2 {
    margin-bottom: 24px;
}

.professor-text p {
    margin-bottom: 16px;
    color: var(--gray-600);
}

.professor-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--gray-200);
}

.professor-stats .stat {
    text-align: center;
}

.professor-stats .stat strong {
    display: block;
    font-size: 2rem;
    font-family: var(--font-heading);
    color: var(--primary);
    margin-bottom: 4px;
}

.professor-stats .stat span {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ============================================
   Testimonials Section
   ============================================ */
.testimonials {
    padding: var(--section-padding);
    background: var(--gray-50);
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.testimonial-card {
    padding: 32px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    font-size: 1.25rem;
}

.testimonial-info h4 {
    color: var(--gray-900);
    font-size: 1rem;
    margin-bottom: 2px;
}

.testimonial-info span {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.testimonial-rating {
    margin-left: auto;
    display: flex;
    gap: 2px;
    color: var(--accent);
    font-size: 0.875rem;
}

.testimonial-card p {
    color: var(--gray-600);
    font-style: italic;
    line-height: 1.7;
}

.testimonials-cta {
    text-align: center;
}

/* ============================================
   Pricing Section
   ============================================ */
.pricing {
    padding: var(--section-padding);
    background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
}

.pricing-content {
    display: grid;
    grid-template-columns: 1fr 450px;
    gap: 60px;
    align-items: center;
}

.pricing-info h2 {
    margin-bottom: 28px;
    line-height: 1.3;
    letter-spacing: -0.8px;
    font-size: 2.75rem;
}

.section-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    background: rgba(99, 102, 241, 0.08);
    padding: 7px 18px;
    border-radius: var(--radius-full);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.countdown-box {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(168, 85, 247, 0.05) 100%);
    padding: 28px 32px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(99, 102, 241, 0.15);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.08);
    margin-bottom: 40px;
}

.countdown-box p {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--gray-600);
    margin-bottom: 20px;
    letter-spacing: 0.2px;
}

.countdown {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
}

.countdown-item {
    text-align: center;
    background: var(--gradient-dark);
    padding: 18px 24px;
    border-radius: var(--radius-md);
    min-width: 80px;
    box-shadow: 0 4px 12px rgba(30, 41, 59, 0.15);
}

.countdown-item span {
    display: block;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--white);
    font-family: var(--font-heading);
    line-height: 1;
}

.countdown-item small {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.7rem;
    text-transform: uppercase;
    font-weight: 600;
    margin-top: 8px;
    letter-spacing: 0.5px;
}

.countdown-separator {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary);
}

.pricing-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 1.05rem;
    color: var(--gray-800);
    font-weight: 500;
    line-height: 1.6;
    padding: 10px 0;
    transition: all 0.2s ease;
}

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

.pricing-features li i {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, var(--primary) 0%, #8b5cf6 100%);
    color: var(--white);
    font-size: 0.7rem;
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

/* Pricing Card */
.pricing-card {
    background: var(--white);
    border-radius: 24px;
    padding: 44px 36px;
    box-shadow: 0 20px 50px -12px rgba(99, 102, 241, 0.2);
    text-align: center;
    position: relative;
    border: 2px solid var(--primary);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 70px -12px rgba(99, 102, 241, 0.3);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 28px;
    background: var(--gradient-primary);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.pricing-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    margin-top: 8px;
    line-height: 1.35;
}

.pricing-old {
    margin-bottom: 8px;
}

.pricing-old s {
    color: var(--gray-400);
    font-size: 1.125rem;
}

.pricing-value {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 4px;
    margin-bottom: 8px;
}

.pricing-value .currency {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-top: 8px;
}

.pricing-value .price {
    font-size: 4.5rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--primary);
    line-height: 1;
    letter-spacing: -1px;
}

.pricing-value .period {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-top: 24px;
}

.pricing-installments {
    color: var(--gray-600);
    font-size: 0.95rem;
    margin-bottom: 24px;
    font-weight: 500;
}

.pricing-savings {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: var(--success);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-full);
    margin-bottom: 32px;
}

.pricing-card .btn {
    margin-bottom: 28px;
}

.pricing-security {
    display: flex;
    justify-content: center;
    gap: 32px;
    padding-top: 28px;
    border-top: 1px solid var(--gray-100);
    margin-bottom: 24px;
}

.security-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--gray-600);
    font-weight: 500;
}

.security-item i {
    color: var(--success);
    font-size: 1rem;
}

.payment-methods p {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-bottom: 16px;
    font-weight: 500;
    letter-spacing: 0.2px;
}

.methods-icons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    font-size: 1.8rem;
    color: var(--gray-300);
}

/* ============================================
   FAQ Section
   ============================================ */
.faq {
    padding: var(--section-padding);
    background: var(--white);
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.active {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    text-align: left;
    background: var(--gray-50);
    transition: var(--transition);
}

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

.faq-question i {
    transition: var(--transition);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 20px 24px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ============================================
   Final CTA Section
   ============================================ */
.final-cta {
    padding: 80px 0;
    background: var(--gradient-primary);
    text-align: center;
}

.cta-content h2 {
    color: var(--white);
    margin-bottom: 16px;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: 32px;
}

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

.cta-content .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.cta-note {
    display: block;
    margin-top: 16px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--gray-800);
}

.footer-brand p {
    margin-top: 16px;
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-800);
    color: var(--gray-400);
    border-radius: 50%;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    color: var(--white);
}

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-links a,
.footer-contact a {
    display: block;
    color: var(--gray-400);
    font-size: 0.95rem;
    padding: 6px 0;
    transition: var(--transition);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--white);
}

.footer-contact p {
    font-size: 0.9rem;
    margin-top: 12px;
}

.footer-contact i {
    margin-right: 8px;
    color: var(--primary);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0;
}

.footer-bottom p {
    font-size: 0.9rem;
}

.footer-badges {
    display: flex;
    gap: 24px;
}

.footer-badges span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
}

.footer-badges i {
    color: var(--primary);
}

/* ============================================
   WhatsApp Float Button
   ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: 100px;
    right: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: #25d366;
    color: var(--white);
    border-radius: var(--radius-full);
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    font-weight: 600;
    z-index: 999;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-float i {
    font-size: 1.5rem;
}

/* ============================================
   Responsive Design
   ============================================ */

/* Large Tablets and Small Desktops */
@media (max-width: 1200px) {
    .container {
        padding: 0 30px;
    }
    
    .modules-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .bonus-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .hero-content {
        gap: 40px;
    }
    
    .professor-content {
        grid-template-columns: 350px 1fr;
        gap: 40px;
    }
}

/* Tablets */
@media (max-width: 992px) {
    :root {
        --section-padding: 80px 0;
    }
    
    .nav {
        display: none;
    }
    
    .btn-header {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: 160px 0 100px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-features {
        justify-content: center;
        max-width: 400px;
        margin: 0 auto 32px;
    }
    
    .hero-cta {
        align-items: center;
    }
    
    .hero-visual {
        order: -1;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .floating-card.card-1 {
        left: 10px;
        top: 10%;
    }
    
    .floating-card.card-2 {
        right: 10px;
        bottom: 10%;
    }
    
    .proof-items {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .audience-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .audience-text {
        text-align: center;
    }
    
    .audience-list {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .audience-list li {
        text-align: left;
    }
    
    .audience-images {
        order: -1;
    }
    
    .image-grid {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .modules-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .bonus-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .professor-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .professor-image {
        max-width: 350px;
        margin: 0 auto;
    }
    
    .professor-text .section-badge {
        margin: 0 auto 16px;
    }
    
    .testimonials-slider {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto 40px;
    }
    
    .pricing-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .pricing-info {
        text-align: center;
    }
    
    .pricing-info h2 {
        font-size: 2rem;
    }
    
    .pricing-info .section-badge {
        margin: 0 auto 16px;
        display: block;
        width: fit-content;
    }
    
    .countdown-box {
        padding: 24px 28px;
        margin-bottom: 40px;
        border-radius: 16px;
    }
    
    .countdown {
        gap: 12px;
    }
    
    .countdown-item {
        min-width: 65px;
        padding: 16px 14px;
    }
    
    .countdown-item span {
        font-size: 1.8rem;
    }
    
    .countdown-separator {
        font-size: 1.8rem;
    }
    
    .pricing-features {
        max-width: 450px;
        margin: 0 auto;
        text-align: left;
    }
    
    .pricing-card {
        padding: 36px 28px;
        border-radius: 20px;
    }
    
    .pricing-value .price {
        font-size: 3.5rem;
    }
    
    .pricing-security {
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }
    
    .pricing-card {
        max-width: 450px;
        margin: 0 auto;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    
    .footer-brand {
        grid-column: span 2;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}

/* Small Tablets and Large Phones */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .container {
        padding: 0 20px;
    }
    
    .urgency-bar {
        padding: 10px 0;
    }
    
    .urgency-bar p {
        font-size: 0.75rem;
        gap: 6px;
    }
    
    .countdown-mini {
        padding: 3px 8px;
        font-size: 0.85rem;
    }
    
    .header {
        top: 44px;
    }
    
    .header .container {
        height: 60px;
    }
    
    .logo-img {
        height: 38px;
    }
    
    .hero {
        padding: 140px 0 80px;
    }
    
    .hero-text .badge {
        padding: 8px 16px;
        font-size: 0.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-features {
        grid-template-columns: 1fr;
        text-align: left;
        max-width: 280px;
    }
    
    .hero-trust {
        flex-direction: column;
        gap: 8px;
    }
    
    .floating-card {
        padding: 12px 16px;
        font-size: 0.9rem;
    }
    
    .floating-card i {
        font-size: 1.25rem;
    }
    
    .floating-card strong {
        font-size: 1rem;
    }
    
    .floating-card span {
        font-size: 0.7rem;
    }
    
    .proof-items {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .proof-item {
        padding: 16px;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .benefit-card {
        padding: 30px 24px;
    }
    
    .benefit-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .image-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .modules-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .module-card {
        padding: 20px;
    }
    
    .bonus-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .bonus-card {
        padding: 24px 20px;
    }
    
    .professor-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    .professor-stats .stat strong {
        font-size: 1.5rem;
    }
    
    .professor-stats .stat span {
        font-size: 0.75rem;
    }
    
    .countdown-box {
        padding: 20px;
    }
    
    .countdown {
        gap: 8px;
    }
    
    .countdown-item {
        min-width: 55px;
        padding: 12px 10px;
    }
    
    .countdown-item span {
        font-size: 1.5rem;
    }
    
    .countdown-item small {
        font-size: 0.65rem;
    }
    
    .countdown-separator {
        font-size: 1.5rem;
    }
    
    .pricing-card {
        padding: 30px 24px;
    }
    
    .pricing-value .price {
        font-size: 3.5rem;
    }
    
    .pricing-security {
        flex-direction: column;
        gap: 12px;
    }
    
    .faq-question {
        padding: 16px 20px;
        font-size: 0.95rem;
    }
    
    .faq-answer p {
        padding: 16px 20px;
    }
    
    .final-cta {
        padding: 60px 0;
    }
    
    .cta-content p {
        font-size: 1.1rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .footer-brand {
        grid-column: span 1;
    }
    
    .footer-links a {
        padding: 8px 0;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .footer-badges {
        flex-direction: column;
        gap: 10px;
    }
    
    .whatsapp-float span {
        display: none;
    }
    
    .whatsapp-float {
        padding: 16px;
        border-radius: 50%;
        bottom: 90px;
        right: 20px;
    }
}

/* Mobile Phones */
@media (max-width: 480px) {
    :root {
        --section-padding: 50px 0;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .urgency-bar p {
        font-size: 0.7rem;
    }
    
    .header {
        top: 38px;
    }
    
    .header .container {
        height: 55px;
    }
    
    .logo-img {
        height: 32px;
    }
    
    .mobile-menu-btn {
        font-size: 1.25rem;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-text .badge {
        padding: 6px 12px;
        font-size: 0.75rem;
        margin-bottom: 16px;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 24px;
    }
    
    .hero-features {
        margin-bottom: 24px;
    }
    
    .feature-item {
        font-size: 0.9rem;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }
    
    .btn-large {
        padding: 14px 28px;
        font-size: 1rem;
    }
    
    .floating-card {
        display: none;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .section-header p {
        font-size: 1rem;
    }
    
    .section-badge {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    
    .audience-list li {
        gap: 12px;
    }
    
    .audience-list li i {
        width: 24px;
        height: 24px;
        font-size: 0.65rem;
    }
    
    .audience-list li strong {
        font-size: 0.95rem;
    }
    
    .audience-list li p {
        font-size: 0.85rem;
    }
    
    .image-grid {
        grid-template-columns: 1fr;
    }
    
    .image-grid img {
        max-height: 200px;
        object-fit: cover;
    }
    
    .module-number {
        width: 36px;
        height: 36px;
        font-size: 0.8rem;
    }
    
    .module-content h4 {
        font-size: 0.95rem;
    }
    
    .module-content p {
        font-size: 0.8rem;
    }
    
    .bonus-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .bonus-card h4 {
        font-size: 0.95rem;
    }
    
    .bonus-card p {
        font-size: 0.8rem;
    }
    
    .professor-image {
        max-width: 280px;
    }
    
    .professor-badge {
        padding: 10px 16px;
        font-size: 0.8rem;
        bottom: 15px;
    }
    
    .professor-stats {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .testimonial-card {
        padding: 24px;
    }
    
    .testimonial-header {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .testimonial-rating {
        margin-left: 0;
        width: 100%;
        order: 3;
    }
    
    .pricing-value .currency {
        font-size: 1.25rem;
    }
    
    .pricing-value .price {
        font-size: 3rem;
    }
    
    .pricing-value .period {
        font-size: 1rem;
        margin-top: 16px;
    }
    
    .pricing-installments {
        font-size: 0.9rem;
    }
    
    .pricing-savings {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    .methods-icons {
        font-size: 1.5rem;
        gap: 12px;
    }
    
    .faq-question {
        padding: 14px 16px;
        font-size: 0.9rem;
    }
    
    .faq-question i {
        font-size: 0.8rem;
    }
    
    .faq-answer p {
        padding: 14px 16px;
        font-size: 0.9rem;
    }
    
    .cta-content h2 {
        font-size: 1.5rem;
    }
    
    .cta-content p {
        font-size: 1rem;
        margin-bottom: 24px;
    }
    
    .footer {
        padding: 40px 0 0;
    }
    
    .footer-brand p {
        font-size: 0.9rem;
    }
    
    .footer-social a {
        width: 36px;
        height: 36px;
    }
    
    .footer-links h4,
    .footer-contact h4 {
        font-size: 0.95rem;
        margin-bottom: 16px;
    }
    
    .footer-links a,
    .footer-contact a {
        font-size: 0.9rem;
    }
    
    .footer-bottom p {
        font-size: 0.8rem;
    }
    
    .logo-footer {
        height: 40px;
    }
}

/* Extra Small Phones */
@media (max-width: 360px) {
    .container {
        padding: 0 12px;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    h2 {
        font-size: 1.35rem;
    }
    
    .hero {
        padding: 110px 0 50px;
    }
    
    .btn-large {
        padding: 12px 20px;
        font-size: 0.95rem;
    }
    
    .countdown-item {
        min-width: 48px;
        padding: 10px 8px;
    }
    
    .countdown-item span {
        font-size: 1.25rem;
    }
    
    .pricing-value .price {
        font-size: 2.5rem;
    }
    
    .pricing-card {
        padding: 24px 16px;
    }
}

/* Landscape Mode for Phones */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        padding: 100px 0 60px;
    }
    
    .urgency-bar {
        position: relative;
    }
    
    .header {
        top: 0;
    }
    
    .floating-card {
        display: none;
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo-img {
        image-rendering: -webkit-optimize-contrast;
    }
}

/* Animation Classes */
[data-aos] {
    pointer-events: none;
}

[data-aos].aos-animate {
    pointer-events: auto;
}

/* Smooth Scroll Offset for Fixed Header */
html {
    scroll-padding-top: 108px;
}