/* ============================================
   MODERN, BRIGHT, TRUSTWORTHY DESIGN
   International Academic Centre
   ============================================ */

:root {
    /* Bright, trustworthy color palette */
    --primary-blue: #2563eb;        /* Bright blue - trustworthy */
    --primary-blue-light: #3b82f6;  
    --primary-blue-dark: #1e40af;
    
    --success-green: #10b981;       /* Encouraging green */
    --success-green-light: #34d399;
    
    --warning-orange: #f59e0b;      /* Attention-grabbing */
    --warning-orange-light: #fbbf24;
    
    --accent-purple: #8b5cf6;       /* Modern accent */
    
    /* Neutral colors - light and airy */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-900: #111827;
    
    /* Semantic colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows - soft and modern */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
}

/* ============================================
   NAVIGATION - Clean and modern
   ============================================ */

.navbar {
    background: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--gray-200);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-decoration: none;
    transition: opacity 0.2s;
}

.logo:hover {
    opacity: 0.8;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-purple) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.logo-initials {
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

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

/* CTA Button in Navigation - Prominent Funnel Point */
.nav-menu a.btn-cta-nav {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #1d4ed8 100%);
    color: white !important;
    padding: 0.65rem 1.5rem !important;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-menu a.btn-cta-nav:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    color: white !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

/* Remove button styling for OLD button classes in navigation */
nav .nav-menu a.btn,
nav .nav-menu a.btn-primary,
.navbar .nav-menu a.btn,
.navbar .nav-menu a.btn-primary {
    background: none !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    color: var(--text-secondary) !important;
}

nav .nav-menu a.btn:hover,
nav .nav-menu a.btn-primary:hover,
.navbar .nav-menu a.btn:hover,
.navbar .nav-menu a.btn-primary:hover {
    background: none !important;
    color: var(--primary-blue) !important;
    transform: none !important;
}

/* Ensure buttons OUTSIDE navigation work properly */
section .btn,
.hero .btn,
.cta-section .btn,
footer .btn {
    color: white;
}

section .btn-primary,
.hero .btn-primary,
.cta-section .btn-primary,
footer .btn-primary {
    background: var(--primary-blue);
    color: white !important;
}

section .btn-success,
.hero .btn-success,
.cta-section .btn-success {
    background: var(--success-green);
    color: white !important;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 8px;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ============================================
   BUTTONS - Modern and accessible
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    font-family: inherit;
}

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

.btn-primary:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-success {
    background: var(--success-green);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: white;
    color: var(--primary-blue) !important;
    border: 2px solid var(--primary-blue);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}

/* ============================================
   HERO SECTION - Bright and encouraging
   ============================================ */

.hero {
    background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 50%, #fef3c7 100%);
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-xl);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--warning-orange);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
}

.hero-title .highlight {
    color: var(--primary-blue);
    position: relative;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

/* Trust indicators - Modern cards */
.trust-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.trust-item {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform 0.2s;
}

.trust-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.trust-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.trust-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ============================================
   SECTIONS - Clean and spacious
   ============================================ */

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

.section-light {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.section-header p {
    font-size: 1.15rem;
    color: var(--text-secondary);
}

/* ============================================
   PROBLEM CARDS - Bright and informative
   ============================================ */

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.problem-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
    border: 2px solid transparent;
}

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

.problem-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-purple) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: white;
    font-size: 1.5rem;
}

.problem-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.problem-stat {
    display: inline-block;
    background: var(--gray-100);
    color: var(--primary-blue);
    font-weight: 700;
    font-size: 0.9rem;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.problem-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   PRICING CARDS - Clean and clear
   ============================================ */

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

.pricing-card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all 0.3s;
    border: 2px solid transparent;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.pricing-card-popular {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-xl);
}

.pricing-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--primary-blue);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-header {
    padding: var(--spacing-xl);
    text-align: center;
    background: var(--gray-50);
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.pricing-price {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.price-amount {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-blue);
}

.price-unit {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.pricing-body {
    padding: var(--spacing-xl);
}

.pricing-description {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
}

.pricing-features i {
    color: var(--success-green);
    margin-top: 2px;
    flex-shrink: 0;
}

.pricing-ideal {
    background: var(--gray-50);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 0.9rem;
}

.pricing-ideal strong {
    color: var(--primary-blue);
}

.pricing-footer {
    padding: 0 var(--spacing-xl) var(--spacing-xl);
}

/* ============================================
   CTA BOX - Encouraging
   ============================================ */

.cta-box {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-purple) 100%);
    color: white;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-xl);
    margin-top: var(--spacing-2xl);
}

.cta-box h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
    font-weight: 700;
}

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

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

/* ============================================
   STEPS - Simple and clear
   ============================================ */

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-xl);
}

.step-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform 0.3s;
}

.step-card:hover {
    transform: translateY(-4px);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--success-green) 0%, var(--success-green-light) 100%);
    color: white;
    font-size: 1.75rem;
    font-weight: 800;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.step-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

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

/* ============================================
   CTA SECTION - Bright and action-oriented
   ============================================ */

.cta-section {
    background: linear-gradient(135deg, #dbeafe 0%, #e0e7ff 100%);
    padding: var(--spacing-3xl) 0;
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

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

/* ============================================
   FOOTER - Clean and simple
   ============================================ */

.footer {
    background: var(--gray-900);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-col ul {
    list-style: none;
}

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

.footer-col a {
    color: var(--gray-300);
    text-decoration: none;
    transition: color 0.2s;
    font-size: 0.9rem;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer p {
    color: var(--gray-300);
    font-size: 0.9rem;
    line-height: 1.6;
}

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

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--gray-300);
    margin-bottom: var(--spacing-sm);
}

.footer-compliance {
    font-size: 0.8rem;
    color: var(--gray-400);
}

/* ============================================
   WHATSAPP FLOATING BUTTON
   ============================================ */

.whatsapp-float {
    position: fixed;
    bottom: 80px;
    right: 20px;
    background: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: all 0.3s ease;
    text-decoration: none;
    cursor: pointer;
}

.whatsapp-float:hover {
    background: #128C7E;
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-text {
    display: none;
    position: absolute;
    right: 70px;
    background: #25D366;
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    white-space: nowrap;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.whatsapp-float:hover .whatsapp-text {
    display: block;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Pulse animation for attention */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

.whatsapp-float {
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    animation: none;
}

/* ============================================
   RESPONSIVE - Mobile first
   ============================================ */

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1.05rem;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        gap: var(--spacing-md);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .pricing-grid,
    .problem-grid,
    .steps-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
}