/* ===================================
   Chuadanga Science & Robotics Club
   Main Stylesheet - PART 1 of 3
   Base Styles, Layout, Navbar, Hero
   =================================== */

/* === CSS RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --emerald: #00b37e;
    --neon-teal: #00eaff;
    --purple: #9b30ff;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #e9ecef;
    --dark-gray: #343a40;
    --black: #000000;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--emerald) 0%, var(--neon-teal) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--neon-teal) 0%, var(--purple) 100%);
    --gradient-glow: linear-gradient(135deg, rgba(0, 179, 126, 0.2) 0%, rgba(0, 234, 255, 0.2) 100%);
    
    /* Typography */
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Poppins', sans-serif;
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 80px 20px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--emerald);
    transition: all 0.3s ease;
}

a:hover {
    color: var(--neon-teal);
}

/* === UTILITY CLASSES === */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.intro-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: #555;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

/* === BUTTONS === */
.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 179, 126, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 179, 126, 0.5);
    filter: brightness(1.1);
}

.btn-secondary {
    background: var(--white);
    color: var(--emerald);
    border: 2px solid var(--emerald);
}

.btn-secondary:hover {
    background: var(--emerald);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 179, 126, 0.3);
}

/* === NAVBAR === */
.navbar {
    position: sticky;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.nav-logo img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--dark-gray);
    padding: 8px 16px;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: var(--emerald);
    background: var(--gradient-glow);
}

.nav-link.btn-join {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 10px 25px;
}

.nav-link.btn-join:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 179, 126, 0.4);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.hamburger {
    width: 25px;
    height: 3px;
    background: var(--emerald);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 3px;
}

/* === HERO BANNER === */
.hero-banner {
    position: relative;
    width: 100%;
    height: 70vh;
    min-height: 500px;
    overflow: hidden;
}

.hero-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 179, 126, 0.8) 0%, rgba(0, 234, 255, 0.6) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.hero-title {
    font-size: 3.5rem;
    color: var(--white);
    text-align: center;
    max-width: 1000px;
    text-shadow: 2px 4px 8px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
}

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

/* === INTRO SECTION === */
.intro-section {
    padding: 80px 20px;
}

.section-content {
    max-width: 900px;
    margin: 0 auto;
}

/* === STATS SECTION === */
.stats-section {
    padding: 80px 20px;
    background: var(--gradient-primary);
    color: var(--white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.stat-card {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.2);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.25rem;
    font-weight: 500;
    opacity: 0.95;
}

/* === FEATURES SECTION === */
.features-section {
    padding: 80px 20px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 50px rgba(0, 179, 126, 0.3);
}

.feature-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.feature-card:hover .feature-image img {
    transform: scale(1.1);
}

.feature-content {
    padding: 2rem;
}

.feature-content h3 {
    color: var(--emerald);
    margin-bottom: 1rem;
}

.feature-content p {
    color: #666;
    margin-bottom: 1.5rem;
}

/* === CAROUSEL SECTION === */
.carousel-section {
    padding: 80px 20px;
    background: var(--light-gray);
}

.carousel-container {
    overflow: hidden;
    margin-top: 2rem;
}

.carousel-track {
    display: flex;
    gap: 2rem;
    animation: scroll 20s linear infinite;
}

.carousel-slide {
    flex-shrink: 0;
    width: 300px;
    text-align: center;
}

.carousel-slide img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.carousel-caption {
    margin-top: 1rem;
    font-weight: 600;
    color: var(--dark-gray);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-320px * 5));
    }
}

.carousel-track:hover {
    animation-play-state: paused;
}

/* END OF PART 1 - Continue with Part 2 */


/* ===================================
   Chuadanga Science & Robotics Club
   Main Stylesheet - PART 2 of 3
   Footer, Page Styles, About, Projects
   =================================== */

/* === FOOTER === */
.footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: var(--white);
    padding: 60px 20px 20px;
}

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

.footer-top {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo {
    height: 60px;
    width: auto;
}

.footer-tagline {
    font-size: 1.25rem;
    font-weight: 600;
    font-style: italic;
    color: var(--neon-teal);
}

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

.footer-column h4 {
    color: var(--neon-teal);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

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

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
}

.footer-column a:hover {
    color: var(--neon-teal);
    padding-left: 5px;
}

.footer-column p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
}

.footer-social {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.footer-social a {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--gradient-primary);
    transform: translateY(-5px);
}

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

/* === PAGE BANNER === */
.page-banner {
    position: relative;
    width: 100%;
    height: 50vh;
    min-height: 400px;
    overflow: hidden;
    margin-bottom: 60px;
}

.page-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 179, 126, 0.85) 0%, rgba(0, 234, 255, 0.75) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-overlay h1 {
    color: var(--white);
    font-size: 3rem;
    text-shadow: 2px 4px 8px rgba(0, 0, 0, 0.3);
}

/* === ABOUT PAGE === */
.about-content {
    padding: 60px 20px;
}

.content-block {
    margin-bottom: 4rem;
}

.content-block h2 {
    margin-bottom: 1.5rem;
    color: var(--emerald);
}

.founder-spotlight {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 3rem;
    margin: 4rem 0;
    padding: 3rem;
    background: var(--gradient-glow);
    border-radius: 20px;
}

.founder-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 179, 126, 0.3);
}

.founder-bio h3 {
    color: var(--emerald);
    margin-bottom: 0.5rem;
}

.founder-title {
    color: var(--neon-teal);
    font-weight: 600;
    margin-bottom: 1rem;
}

.mission-vision {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin: 4rem 0;
}

.mission-card,
.vision-card {
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.mission-card {
    background: linear-gradient(135deg, rgba(0, 179, 126, 0.1) 0%, rgba(0, 234, 255, 0.1) 100%);
    border-left: 5px solid var(--emerald);
}

.vision-card {
    background: linear-gradient(135deg, rgba(0, 234, 255, 0.1) 0%, rgba(155, 48, 255, 0.1) 100%);
    border-left: 5px solid var(--neon-teal);
}

.team-heading,
.advisory-heading {
    text-align: center;
    margin: 4rem 0 2rem;
    color: var(--emerald);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2.5rem;
    margin-bottom: 4rem;
}

.team-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    text-align: center;
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 179, 126, 0.3);
}

.team-card img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.team-card h4 {
    padding: 1rem 1rem 0.5rem;
    color: var(--dark-gray);
    font-size: 1.125rem;
}

.team-card .role {
    color: var(--emerald);
    font-weight: 600;
    margin-bottom: 0.5rem;
    padding: 0 1rem;
}

.team-card .bio {
    padding: 0 1rem 1.5rem;
    color: #666;
    font-size: 0.9rem;
}

.advisory-list {
    background: var(--light-gray);
    padding: 3rem;
    border-radius: 20px;
    margin-bottom: 4rem;
}

.advisory-list ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.advisory-list li {
    padding: 1rem;
    background: var(--white);
    border-radius: 10px;
    border-left: 3px solid var(--emerald);
}

/* === PROJECTS PAGE === */
.projects-intro {
    padding: 40px 20px 20px;
}

.projects-list {
    padding: 60px 20px;
}

.project-card-large {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 5rem;
    padding: 3rem;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.1);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px;
}

.project-details h2 {
    color: var(--emerald);
    margin-bottom: 0.5rem;
}

.project-tagline {
    color: var(--neon-teal);
    font-weight: 600;
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.tech-features,
.use-cases {
    margin: 2rem 0;
}

.tech-features h4,
.use-cases h4 {
    color: var(--dark-gray);
    margin-bottom: 1rem;
}

.tech-features ul {
    list-style: none;
    padding-left: 0;
}

.tech-features li {
    padding: 0.5rem 0 0.5rem 1.5rem;
    position: relative;
    color: #555;
}

.tech-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--emerald);
    font-weight: bold;
}

.project-achievements {
    padding: 1.5rem;
    background: var(--gradient-glow);
    border-radius: 10px;
    margin: 1.5rem 0;
}

.source-citation {
    color: #999;
    font-size: 0.875rem;
    margin-top: 1rem;
}

/* === MODAL === */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--white);
    padding: 3rem;
    border-radius: 20px;
    max-width: 600px;
    width: 90%;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    font-weight: bold;
    color: #999;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: var(--emerald);
}

.modal-description {
    margin-top: 1.5rem;
    color: #666;
}

/* === ACHIEVEMENTS PAGE === */
.achievements-intro {
    padding: 40px 20px 20px;
}

.timeline-section {
    padding: 60px 20px;
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline:before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.timeline-item:nth-child(even) .timeline-content {
    grid-column: 1;
    text-align: right;
}

.timeline-item:nth-child(odd) .timeline-content {
    grid-column: 2;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 30px;
    width: 30px;
    height: 30px;
    background: var(--gradient-primary);
    border: 5px solid var(--white);
    border-radius: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 20px rgba(0, 179, 126, 0.5);
    z-index: 1;
}

.timeline-content {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.timeline-image {
    width: 100%;
    height: 250px;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 1rem;
}

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

.timeline-content h3 {
    color: var(--emerald);
    margin-bottom: 0.5rem;
}

.timeline-date {
    color: var(--neon-teal);
    font-weight: 600;
    margin-bottom: 1rem;
}

/* === PRESS SECTION === */
.press-section {
    padding: 60px 20px;
    background: var(--light-gray);
}

.press-intro {
    text-align: center;
    margin-bottom: 3rem;
    color: #666;
}

.press-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2.5rem;
}

.press-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.press-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 179, 126, 0.3);
}

.press-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

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

.press-content {
    padding: 1.5rem;
}

.press-content h4 {
    color: var(--emerald);
    margin-bottom: 0.75rem;
    font-size: 1.125rem;
}

.press-source {
    color: #999;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.press-content p {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* END OF PART 2 - Continue with Part 3 */



/* === MEDIA PAGE === */
.media-intro {
    padding: 40px 20px 20px;
}

.news-carousel {
    padding: 60px 20px;
    background: var(--white);
}

.carousel-wrapper {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.1);
}

.news-slides {
    display: flex;
    transition: transform 0.5s ease;
}

.news-slide {
    min-width: 100%;
    padding: 3rem;
    background: var(--gradient-glow);
}

.news-slide h3 {
    color: var(--emerald);
    margin-bottom: 1rem;
}

.news-slide .news-source {
    color: var(--neon-teal);
    font-weight: 600;
    margin-bottom: 1rem;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.carousel-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.carousel-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 20px rgba(0, 179, 126, 0.4);
}

.video-section {
    padding: 60px 20px;
    background: var(--light-gray);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.video-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.video-embed {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
}

.video-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-info {
    padding: 1.5rem;
}

.video-info h4 {
    color: var(--emerald);
    margin-bottom: 0.5rem;
}

/* === JOIN PAGE === */
.join-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    padding: 60px 20px;
}

.form-section,
.members-section {
    background: var(--white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.form-section h2,
.members-section h2 {
    color: var(--emerald);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-gray);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--medium-gray);
    border-radius: 10px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--emerald);
    box-shadow: 0 0 0 3px rgba(0, 179, 126, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 179, 126, 0.4);
}

.success-message {
    display: none;
    padding: 1.5rem;
    background: #d4edda;
    border: 1px solid #c3e6cb;
    border-radius: 10px;
    color: #155724;
    margin-top: 1rem;
}

.success-message.active {
    display: block;
}

.filter-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    background: var(--light-gray);
    border: 2px solid var(--medium-gray);
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--emerald);
    color: var(--white);
    border-color: var(--emerald);
}

.members-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 2rem;
}

.member-item {
    text-align: center;
    transition: all 0.3s ease;
}

.member-item.hidden {
    display: none;
}

.member-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 15px;
    margin-bottom: 1rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.member-item h4 {
    color: var(--dark-gray);
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.member-role {
    color: var(--emerald);
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.member-bio {
    font-size: 0.875rem;
    color: #666;
}

/* === 404 PAGE === */
.error-page {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, rgba(0, 179, 126, 0.05) 0%, rgba(0, 234, 255, 0.05) 100%);
}

.error-content {
    text-align: center;
    max-width: 600px;
}

.error-title {
    font-size: 8rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.error-subtitle {
    font-size: 2rem;
    color: var(--dark-gray);
    margin-bottom: 1rem;
}

.error-text {
    font-size: 1.125rem;
    color: #666;
    margin-bottom: 2rem;
}

.error-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.robot-illustration {
    width: 200px;
    height: auto;
    margin: 2rem auto;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* === RESPONSIVE DESIGN === */

/* Tablets (601px - 1024px) */
@media screen and (max-width: 1024px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .founder-spotlight {
        grid-template-columns: 1fr;
    }
    
    .project-card-large {
        grid-template-columns: 1fr;
    }
    
    .timeline:before {
        left: 30px;
    }
    
    .timeline-item {
        grid-template-columns: 1fr;
        padding-left: 60px;
    }
    
    .timeline-item:nth-child(even) .timeline-content,
    .timeline-item:nth-child(odd) .timeline-content {
        grid-column: 1;
        text-align: left;
    }
    
    .timeline-marker {
        left: 30px;
    }
    
    .join-container {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
    }
}

/* Mobile (up to 600px) */
@media screen and (max-width: 600px) {
    :root {
        --section-padding: 40px 15px;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active .hamburger:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .nav-toggle.active .hamburger:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .hamburger:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .hero-banner {
        height: 50vh;
        min-height: 400px;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .stat-number {
        font-size: 3rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .carousel-track {
        gap: 1rem;
    }
    
    .carousel-slide {
        width: 250px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .mission-vision {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .press-grid {
        grid-template-columns: 1fr;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .members-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 1.5rem;
    }
    
    .error-title {
        font-size: 5rem;
    }
    
    .error-subtitle {
        font-size: 1.5rem;
    }
    
    .error-actions {
        flex-direction: column;
    }
    
    .banner-overlay h1 {
        font-size: 2rem;
    }
    
    .modal-content {
        padding: 2rem;
        width: 95%;
    }
}

/* === ACCESSIBILITY === */
*:focus {
    outline: 3px solid var(--emerald);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* === PRINT STYLES === */
@media print {
    .navbar,
    .footer,
    .btn-primary,
    .btn-secondary {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
        color: #000;
    }
    
    a {
        text-decoration: underline;
        color: #000;
    }
    
    a[href]:after {
        content: " (" attr(href) ")";
    }
}