/* ========================================
   Landing Page Styles - University of Georgia Portal
   ======================================== */

/* CSS Variables - Design System */
:root {
    /* Primary Colors */
    --color-primary-blue: #0052CC;
    --color-primary-blue-hover: #0043A3;
    --color-primary-blue-light: #DEEBFF;
    --color-primary-green: #36B37E;
    --color-primary-green-hover: #00875A;
    --color-primary-green-light: #E3FCEF;

    /* Text Colors */
    --color-text-primary: #172B4D;
    --color-text-secondary: #6B778C;
    --color-text-muted: #A5ADBA;

    /* Background Colors */
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F4F5F7;
    --color-bg-tertiary: #FAFBFC;

    /* Border Colors */
    --color-border: #DFE1E6;
    --color-border-light: #EBECF0;

    /* Status Colors */
    --color-error: #DE350B;
    --color-success: #36B37E;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 82, 204, 0.2);
    --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.15);

    /* Container */
    --container-max-width: 1200px;
    --container-padding: 24px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--color-text-primary);
    line-height: 1.6;
    background: var(--color-bg-primary);
}

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

ul, ol {
    list-style: none;
}

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

/* ========================================
   Container & Layout
   ======================================== */

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

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-badge {
    display: inline-block;
    background: var(--color-primary-blue-light);
    color: var(--color-primary-blue);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-badge-green {
    background: var(--color-primary-green-light);
    color: var(--color-primary-green-hover);
}

.section-badge-blue {
    background: var(--color-primary-blue-light);
    color: var(--color-primary-blue);
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-family);
}

.btn-large {
    padding: 16px 32px;
    font-size: 17px;
}

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

.btn-primary-blue:hover {
    background: var(--color-primary-blue-hover);
    border-color: var(--color-primary-blue-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
}

.btn-primary-green {
    background: var(--color-primary-green);
    color: white;
    border-color: var(--color-primary-green);
}

.btn-primary-green:hover {
    background: var(--color-primary-green-hover);
    border-color: var(--color-primary-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(54, 179, 126, 0.3);
}

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

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

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

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

.btn-outline-white {
    background: transparent;
    color: white;
    border-color: white;
}

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

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

.btn-white:hover {
    background: var(--color-bg-secondary);
    border-color: var(--color-bg-secondary);
    transform: translateY(-2px);
}

.btn-icon {
    font-size: 18px;
}

/* ========================================
   Header / Navigation
   ======================================== */

.landing-header {
    background: white;
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.landing-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.logo-icon svg {
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 82, 204, 0.2);
}

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

.logo-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary-blue);
    line-height: 1.2;
}

.logo-tagline {
    font-size: 11px;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s ease;
}

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

.nav-actions {
    display: flex;
    gap: var(--spacing-md);
}

.nav-actions .btn {
    padding: 10px 20px;
    font-size: 14px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all 0.3s ease;
    border-radius: 2px;
}

/* ========================================
   Hero Section
   ======================================== */

.hero-section {
    background: linear-gradient(135deg, #F8F9FB 0%, #FFFFFF 50%, #F4F5F7 100%);
    padding: var(--spacing-3xl) 0 var(--spacing-3xl);
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    background: var(--color-primary-green-light);
    color: var(--color-primary-green-hover);
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.hero-title {
    font-size: 52px;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

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

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

.hero-subtitle {
    font-size: 20px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3xl);
    flex-wrap: wrap;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border-light);
}

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

.stat-number {
    display: block;
    font-size: 40px;
    font-weight: 700;
    color: var(--color-primary-blue);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

/* ========================================
   Trust Section
   ======================================== */

.trust-section {
    background: var(--color-bg-secondary);
    padding: var(--spacing-xl) 0;
}

.trust-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.trust-icon {
    font-size: 22px;
}

/* ========================================
   About Section
   ======================================== */

.about-section {
    background: white;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-content h3 {
    font-size: 28px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.about-text {
    color: var(--color-text-secondary);
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.about-features {
    margin-top: var(--spacing-lg);
}

.about-features li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
    font-size: 15px;
}

.about-features li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--color-primary-green);
    font-weight: bold;
}

.about-programs {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.about-programs h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.program-tag {
    background: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--color-text-primary);
    text-align: center;
    border: 1px solid var(--color-border-light);
}

/* ========================================
   Students Section
   ======================================== */

.students-section {
    background: linear-gradient(135deg, #E3FCEF 0%, #F0FFF7 100%);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.benefit-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-align: center;
}

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

.benefit-icon {
    font-size: 44px;
    margin-bottom: var(--spacing-md);
}

.benefit-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.benefit-description {
    color: var(--color-text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.section-cta {
    text-align: center;
    margin-top: var(--spacing-2xl);
}

/* ========================================
   Partners Section
   ======================================== */

.partners-section {
    background: white;
}

.partner-benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.partner-card {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border-left: 4px solid var(--color-primary-blue);
    transition: all 0.3s ease;
}

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

.partner-icon {
    font-size: 36px;
    margin-bottom: var(--spacing-md);
}

.partner-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.partner-description {
    color: var(--color-text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.partner-highlight {
    display: inline-block;
    background: var(--color-primary-blue-light);
    color: var(--color-primary-blue);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
}

/* ========================================
   Income Section
   ======================================== */

.income-section {
    background: linear-gradient(135deg, var(--color-primary-blue) 0%, #0065FF 100%);
    color: white;
}

.income-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.income-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.income-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.income-description {
    font-size: 17px;
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

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

.income-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 16px;
}

.check-icon {
    color: var(--color-primary-green);
    font-weight: bold;
    font-size: 18px;
}

.income-stats-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    backdrop-filter: blur(10px);
}

.income-stat .stat-label {
    display: block;
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: var(--spacing-sm);
}

.income-stat .stat-value {
    display: block;
    font-size: 52px;
    font-weight: 700;
    line-height: 1;
}

.income-stat .stat-period {
    display: block;
    font-size: 14px;
    opacity: 0.8;
    margin-top: var(--spacing-sm);
}

/* ========================================
   Features Section
   ======================================== */

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.feature-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border-light);
}

.feature-icon {
    font-size: 28px;
}

.feature-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.feature-list li {
    padding: var(--spacing-sm) 0;
    color: var(--color-text-secondary);
    font-size: 14px;
    border-bottom: 1px solid var(--color-border-light);
    padding-left: var(--spacing-md);
    position: relative;
}

.feature-list li::before {
    content: '\2022';
    position: absolute;
    left: 0;
    color: var(--color-primary-blue);
}

.feature-list li:last-child {
    border-bottom: none;
}

/* ========================================
   Why Choose Section
   ======================================== */

.why-section {
    background: white;
}

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

.reason-item {
    text-align: center;
    padding: var(--spacing-lg);
}

.reason-number {
    font-size: 56px;
    font-weight: 700;
    color: var(--color-primary-blue-light);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.reason-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.reason-text {
    color: var(--color-text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

/* ========================================
   Final CTA Section
   ======================================== */

.final-cta-section {
    background: linear-gradient(135deg, var(--color-primary-green) 0%, #00875A 100%);
    padding: var(--spacing-3xl) 0;
}

.cta-content {
    text-align: center;
    color: white;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.cta-subtitle {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

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

/* ========================================
   Footer
   ======================================== */

.landing-footer {
    background: var(--color-text-primary);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

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

.footer-brand .footer-logo {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.footer-brand .footer-tagline {
    font-size: 13px;
    opacity: 0.7;
    margin-bottom: var(--spacing-md);
}

.footer-brand .footer-description {
    font-size: 14px;
    opacity: 0.7;
    line-height: 1.6;
    max-width: 300px;
}

.footer-links h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    transition: color 0.2s ease;
}

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

.footer-contact h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-contact p {
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: var(--spacing-xs);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    font-size: 14px;
    opacity: 0.7;
}

/* ========================================
   Responsive - Tablet
   ======================================== */

@media (max-width: 992px) {
    .hero-title {
        font-size: 42px;
    }

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

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

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

@media (max-width: 768px) {
    :root {
        --container-padding: 16px;
        --spacing-3xl: 48px;
    }

    section {
        padding: var(--spacing-2xl) 0;
    }

    .landing-nav {
        flex-wrap: wrap;
    }

    .nav-links {
        display: none;
    }

    .nav-actions {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-section {
        min-height: auto;
        padding: var(--spacing-2xl) 0;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-cta-group {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta-group .btn {
        width: 100%;
        max-width: 300px;
    }

    .hero-stats {
        gap: var(--spacing-xl);
    }

    .stat-number {
        font-size: 32px;
    }

    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    .trust-badges {
        gap: var(--spacing-lg);
    }

    .income-title {
        font-size: 28px;
    }

    .income-stat .stat-value {
        font-size: 40px;
    }

    .cta-title {
        font-size: 28px;
    }

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

    .cta-buttons .btn {
        width: 100%;
        max-width: 280px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

    .footer-brand .footer-description {
        max-width: 100%;
    }
}

/* ========================================
   Responsive - Mobile
   ======================================== */

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .trust-badges {
        flex-direction: column;
        align-items: center;
    }

    .programs-grid {
        grid-template-columns: 1fr;
    }

    .reason-number {
        font-size: 44px;
    }
}

/* ========================================
   Animations
   ======================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    animation: fadeIn 0.6s ease-out;
}

/* Smooth scroll offset for sticky header */
section[id] {
    scroll-margin-top: 80px;
}