/* =====================================================
   DATA VISIONARIES TEAM - GLOBAL IMPACT INNOVATION PLATFORM
   Design System & Styles
   ===================================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #0A2647;
    --color-primary-light: #144272;
    --color-primary-dark: #061830;
    --color-accent: #00A86B;
    --color-accent-light: #00C97B;
    --color-accent-dark: #008F5B;
    --color-white: #FFFFFF;
    --color-off-white: #F8FAFC;
    --color-gray-100: #F1F5F9;
    --color-gray-200: #E2E8F0;
    --color-gray-300: #CBD5E1;
    --color-gray-400: #94A3B8;
    --color-gray-500: #64748B;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1E293B;
    --color-gray-900: #0F172A;
    
    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-gray-700);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-gray-900);
}

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

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

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* =====================================================
   NAVIGATION
   ===================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--color-white);
    transition: color var(--transition-fast);
}

.navbar.scrolled .nav-logo {
    color: var(--color-primary);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--color-accent);
    border-radius: var(--radius-md);
    color: var(--color-white);
}

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

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    transition: color var(--transition-fast);
}

.navbar.scrolled .nav-link {
    color: var(--color-gray-600);
}

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

.nav-cta {
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-accent);
    color: var(--color-white) !important;
    border-radius: var(--radius-full);
}

.nav-cta:hover {
    background: var(--color-accent-light);
}

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

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition-fast);
}

.navbar.scrolled .nav-toggle span {
    background: var(--color-primary);
}

/* Mobile menu toggle animation */
.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Prevent body scroll when menu is open */
body.menu-open {
    overflow: hidden;
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-5xl) 0;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    padding: 0 var(--space-lg);
    animation: fadeInUp 0.8s ease-out;
}

.hero-badge {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    background: rgba(0, 168, 107, 0.15);
    border: 1px solid rgba(0, 168, 107, 0.3);
    border-radius: var(--radius-full);
    color: var(--color-accent-light);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-xl);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--space-xl);
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 700px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.btn-primary:hover {
    background: var(--color-accent-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 168, 107, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-2xl);
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-white);
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.stat-divider {
    width: 1px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    animation: bounce 2s infinite;
}

/* =====================================================
   SECTION STYLES
   ===================================================== */
section {
    padding: var(--space-5xl) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--color-accent);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-gray-500);
    line-height: 1.7;
}

/* =====================================================
   PLATFORM SECTION
   ===================================================== */
.platform {
    background: var(--color-off-white);
}

.platform-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.platform-text .lead {
    font-size: 1.25rem;
    color: var(--color-gray-700);
    margin-bottom: var(--space-lg);
}

.platform-text p {
    margin-bottom: var(--space-lg);
}

.scripture {
    padding: var(--space-xl);
    background: var(--color-white);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-md);
    margin-top: var(--space-xl);
}

.scripture p {
    font-style: italic;
    color: var(--color-gray-600);
    margin-bottom: var(--space-sm);
}

.scripture cite {
    font-size: 0.9rem;
    color: var(--color-accent);
    font-style: normal;
    font-weight: 500;
}

.platform-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.feature-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
}

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

/* =====================================================
   MODEL SECTION
   ===================================================== */
.model {
    background: var(--color-white);
}

.model-pipeline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
}

.pipeline-step {
    position: relative;
    padding: var(--space-xl);
    background: var(--color-off-white);
    border-radius: var(--radius-lg);
    text-align: center;
    max-width: 200px;
    transition: all var(--transition-base);
}

.pipeline-step:hover {
    background: var(--color-primary);
    transform: translateY(-8px);
}

.pipeline-step:hover .step-number,
.pipeline-step:hover h3,
.pipeline-step:hover p {
    color: var(--color-white);
}

.step-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
    transition: color var(--transition-base);
}

.step-content h3 {
    font-size: 1rem;
    margin-bottom: var(--space-xs);
    transition: color var(--transition-base);
}

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

.pipeline-connector {
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-primary) 100%);
}

/* =====================================================
   PORTFOLIO SECTION
   ===================================================== */
.portfolio {
    background: var(--color-primary);
}

.portfolio .section-tag {
    background: rgba(255, 255, 255, 0.15);
}

.portfolio .section-title {
    color: var(--color-white);
}

.portfolio .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.portfolio-card {
    display: flex;
    flex-direction: column;
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.portfolio-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.card-category {
    font-size: 0.75rem;
    color: var(--color-accent-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-header i {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.9rem;
}

.card-title {
    font-size: 1.5rem;
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

.card-description {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    flex-grow: 1;
    margin-bottom: var(--space-lg);
}

.card-footer {
    margin-top: auto;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-accent-light);
    font-weight: 500;
    font-size: 0.9rem;
}

/* =====================================================
   IMPACT SECTION
   ===================================================== */
.impact {
    background: var(--color-off-white);
}

.impact-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.metric-card {
    text-align: center;
    padding: var(--space-2xl);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.metric-number {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.metric-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-gray-800);
    margin-bottom: var(--space-xs);
}

.metric-detail {
    font-size: 0.9rem;
    color: var(--color-gray-500);
}

.impact-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    max-width: 400px;
    margin: 0 auto;
}

/* =====================================================
   PARTNERS SECTION
   ===================================================== */
.partners {
    background: var(--color-white);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-4xl);
}

.partner-card {
    padding: var(--space-2xl);
    background: var(--color-off-white);
    border-radius: var(--radius-xl);
    border: 2px solid transparent;
    transition: all var(--transition-base);
}

.partner-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.partner-card.featured {
    background: var(--color-primary);
}

.partner-card.featured h3,
.partner-card.featured p,
.partner-card.featured li {
    color: var(--color-white);
}

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

.partner-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--color-primary);
    border-radius: var(--radius-lg);
    color: var(--color-white);
    font-size: 1.75rem;
    margin-bottom: var(--space-lg);
}

.partner-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.partner-card > p {
    color: var(--color-gray-600);
    margin-bottom: var(--space-lg);
}

.partner-list {
    list-style: none;
}

.partner-list li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    color: var(--color-gray-600);
    font-size: 0.95rem;
}

.partner-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
}

.universities-banner {
    text-align: center;
    padding: var(--space-2xl);
    background: var(--color-off-white);
    border-radius: var(--radius-xl);
}

.universities-banner p {
    font-size: 0.9rem;
    color: var(--color-gray-500);
    margin-bottom: var(--space-lg);
}

.universities-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-lg) var(--space-2xl);
}

.universities-list span {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* =====================================================
   JOIN SECTION
   ===================================================== */
.join {
    background: var(--color-off-white);
}

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

.join-card {
    padding: var(--space-xl);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    border: 2px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.join-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.join-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.join-card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
}

.join-card p {
    font-size: 0.9rem;
    color: var(--color-gray-500);
    margin-bottom: var(--space-lg);
}

.join-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-accent);
    font-weight: 500;
    font-size: 0.9rem;
}

.join-link:hover {
    gap: var(--space-md);
}

/* =====================================================
   TEAM SECTION
   ===================================================== */
.team {
    background: var(--color-white);
}

.team-category {
    margin-bottom: var(--space-4xl);
}

.category-title {
    font-size: 1.5rem;
    color: var(--color-primary);
    padding-bottom: var(--space-md);
    border-bottom: 2px solid var(--color-gray-200);
    margin-bottom: var(--space-xl);
}

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

.team-grid-leadership {
    grid-template-columns: repeat(3, 1fr);
}

.team-card {
    text-align: center;
    padding: var(--space-xl);
    background: var(--color-off-white);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

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

.team-image {
    width: 200px;
    height: 200px;
    margin: 0 auto var(--space-lg);
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--color-accent);
}

.team-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-info h4 {
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
}

.team-role {
    display: block;
    font-size: 0.9rem;
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.team-location,
.team-credential {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    font-size: 0.85rem;
    color: var(--color-gray-500);
}

/* =====================================================
   CONTACT SECTION
   ===================================================== */
.contact {
    background: var(--color-off-white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: start;
}

.contact-info .section-header {
    text-align: left;
    margin-bottom: var(--space-xl);
}

.contact-description {
    font-size: 1.1rem;
    color: var(--color-gray-600);
    margin-bottom: var(--space-2xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.contact-item i {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
}

.contact-item strong {
    display: block;
    font-size: 0.85rem;
    color: var(--color-gray-500);
    margin-bottom: var(--space-xs);
}

.contact-item a {
    font-size: 1.1rem;
    color: var(--color-gray-800);
    font-weight: 500;
}

.contact-item a:hover {
    color: var(--color-accent);
}

.contact-form-wrapper {
    padding: var(--space-2xl);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-gray-700);
}

input,
select,
textarea {
    padding: var(--space-md);
    font-family: var(--font-body);
    font-size: 1rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast);
    background: var(--color-white);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

/* =====================================================
   MODAL
   ===================================================== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    padding: var(--space-3xl);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    text-align: center;
    max-width: 400px;
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-xl);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 2.5rem;
}

.modal-content h3 {
    font-size: 1.75rem;
    margin-bottom: var(--space-md);
}

.modal-content p {
    color: var(--color-gray-500);
    margin-bottom: var(--space-xl);
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
    background: var(--color-gray-900);
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--space-4xl);
    padding-bottom: var(--space-3xl);
    border-bottom: 1px solid var(--color-gray-800);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-brand .logo-icon {
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
}

.footer-brand .logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-white);
    margin-top: var(--space-md);
}

.footer-brand p {
    color: var(--color-gray-400);
    font-size: 0.9rem;
}

.footer-legal {
    color: var(--color-gray-500) !important;
    font-size: 0.85rem !important;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
}

.footer-column h4 {
    font-size: 1rem;
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

.footer-column a {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-gray-400);
    font-size: 0.95rem;
    margin-bottom: var(--space-sm);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
}

.footer-bottom p {
    color: var(--color-gray-500);
    font-size: 0.9rem;
}

/* =====================================================
   ANIMATIONS
   ===================================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */
@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .impact-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .partners-grid {
        grid-template-columns: 1fr;
    }
    
    .join-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .team-grid-leadership {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        background: var(--color-primary);
        transition: right var(--transition-base);
        padding: var(--space-xl);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        color: var(--color-white);
        font-size: 1.25rem;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .platform-content {
        grid-template-columns: 1fr;
    }
    
    .model-pipeline {
        flex-direction: column;
    }
    
    .pipeline-connector {
        width: 2px;
        height: 30px;
    }
    
    .pipeline-step {
        max-width: 100%;
        width: 100%;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .impact-metrics {
        grid-template-columns: 1fr;
    }
    
    .join-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid,
    .team-grid-leadership {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .stat-divider {
        width: 50px;
        height: 1px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .team-grid,
    .team-grid-leadership {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .universities-list span {
        font-size: 0.9rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}