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

:root {
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-tertiary: #374151;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --accent-cyan: #22d3ee;
    --accent-blue: #3b82f6;
    --accent-purple: #a855f7;
    --accent-yellow: #fbbf24;
    --border-color: #4b5563;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* ========================================
   NAVIGATION
   ======================================== */
#navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

#navbar.scrolled {
    background-color: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

/* Image Logo Styles */
.logo-image {
    height: 200px; /* Adjust this to your logo size */
    width: auto;
    object-fit: contain;
    transition: transform 0.3s ease;
    border-radius: 15px;
    background: transparent;
}

.logo-image:hover {
    transform: scale(1.05);
}

/* Alternative: Text Logo with Icon */
.logo-icon {
    width: 28px;
    height: 28px;
    color: var(--accent-cyan);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--accent-cyan);
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu {
    display: none;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.mobile-menu.active {
    display: block;
}

.mobile-link {
    display: block;
    padding: 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s;
}

.mobile-link:hover {
    color: var(--accent-cyan);
    background-color: var(--bg-tertiary);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 4rem;
}

.hero-bg {
    z-index: 1;
}
.bg-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    opacity: 0.35; /* controls video visibility */
}


.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.2;
    animation: pulse 4s ease-in-out infinite;
}

.blob-1 {
    width: 300px;
    height: 300px;
    background-color: var(--accent-cyan);
    top: 10%;
    left: 10%;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background-color: var(--accent-blue);
    bottom: 10%;
    right: 10%;
    animation-delay: 2s;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.hero-content {
    z-index: 2;
    text-align: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    animation: fadeInUp 1s ease-out 0.3s backwards;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.8;
    animation: fadeInUp 1s ease-out 0.6s backwards;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.9s backwards;
}

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

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: white;
}

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(34, 211, 238, 0.3);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--accent-cyan);
    color: var(--accent-cyan);
}

.btn-secondary:hover {
    background-color: rgba(34, 211, 238, 0.1);
}

.btn-full {
    width: 100%;
}

/* ========================================
   SECTIONS
   ======================================== */
.section {
    padding: 5rem 1rem;
}

.section-dark {
    background-color: rgba(31, 41, 55, 0.5);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* ========================================
   TEAM SECTION
   ======================================== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.team-card {
    background-color: rgba(55, 65, 81, 0.5);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
    text-align: center;
}

.team-card:hover {
    border-color: var(--accent-cyan);
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(34, 211, 238, 0.2);
}

.team-avatar {
    width: 8rem;
    height: 8rem;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: bold;
}

.team-name {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.team-role {
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.team-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.team-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 1rem;
}

.skill-tag {
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-secondary);
    border: 1px solid rgba(34, 211, 238, 0.3);
    border-radius: 1rem;
    font-size: 0.75rem;
    color: var(--accent-cyan);
}

.team-social {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.social-icon {
    color: var(--text-secondary);
    transition: color 0.3s;
}

.social-icon:hover {
    color: var(--accent-cyan);
}

/* ========================================
   ACHIEVEMENTS SECTION
   ======================================== */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

.achievement-card {
    background-color: rgba(55, 65, 81, 0.5);
    border-radius: 1rem;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    display: flex;
    gap: 1rem;
    transition: all 0.3s;
}

.achievement-card:hover {
    border-color: var(--accent-yellow);
    box-shadow: 0 10px 30px rgba(251, 191, 36, 0.2);
}

.achievement-icon {
    padding: 1rem;
    background-color: rgba(251, 191, 36, 0.2);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-yellow);
}

.achievement-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.achievement-meta {
    color: var(--accent-cyan);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

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

/* ========================================
   HACKATHONS SECTION
   ======================================== */
.hackathon-section {
    margin-bottom: 3rem;
}

.hackathon-section-title {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.hackathon-section-title.upcoming {
    color: var(--accent-purple);
}

.hackathon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.hackathon-card {
    background-color: rgba(55, 65, 81, 0.5);
    border-radius: 1rem;
    padding: 1.5rem;
    border: 1px solid;
    transition: all 0.3s;
}

.hackathon-card.completed {
    border-color: rgba(34, 211, 238, 0.3);
}

.hackathon-card.upcoming {
    border-color: rgba(168, 85, 247, 0.3);
}

.hackathon-card:hover {
    transform: translateY(-5px);
}

.hackathon-card.completed:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 10px 30px rgba(34, 211, 238, 0.2);
}

.hackathon-card.upcoming:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 10px 30px rgba(168, 85, 247, 0.2);
}

.hackathon-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.hackathon-name {
    font-size: 1.1rem;
    font-weight: bold;
    flex: 1;
}

.hackathon-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
}

.hackathon-badge.completed {
    background-color: rgba(34, 211, 238, 0.2);
    color: var(--accent-cyan);
}

.hackathon-badge.upcoming {
    background-color: rgba(168, 85, 247, 0.2);
    color: var(--accent-purple);
}

.hackathon-theme {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.hackathon-date {
    color: #6b7280;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.hackathon-project {
    color: var(--accent-cyan);
    font-size: 0.875rem;
}

/* ========================================
   PROJECTS SECTION
   ======================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: rgba(55, 65, 81, 0.5);
    border-radius: 1rem;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.project-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 20px 40px rgba(34, 211, 238, 0.2);
}

.project-image {
    height: 12rem;
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.2), rgba(59, 130, 246, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-image svg {
    color: var(--accent-cyan);
    opacity: 0.5;
}

.project-content {
    padding: 1.5rem;
}

.project-name {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 0.75rem;
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.project-problem-label {
    font-size: 0.75rem;
    color: #6b7280;
    margin-bottom: 0.5rem;
}

.project-problem {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    padding: 0.25rem 0.5rem;
    background-color: rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 0.25rem;
    font-size: 0.75rem;
    color: #60a5fa;
}

.project-link {
    color: var(--accent-cyan);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s;
}

.project-link:hover {
    color: #67e8f9;
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 3rem 0;
}

.social-link {
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border-radius: 50%;
    color: var(--text-primary);
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-link:hover {
    transform: scale(1.1);
}

.social-link:nth-child(1):hover {
    background-color: var(--accent-cyan);
}

.social-link:nth-child(2):hover {
    background-color: var(--accent-blue);
}

.social-link:nth-child(3):hover {
    background-color: var(--accent-cyan);
}

.social-link:nth-child(4):hover {
    background-color: var(--accent-purple);
}

.contact-form-container {
    background-color: rgba(55, 65, 81, 0.5);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid var(--border-color);
}

.contact-form-container h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-input {
    padding: 0.75rem 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-cyan);
}

.form-input::placeholder {
    color: var(--text-secondary);
}

textarea.form-input {
    resize: vertical;
    font-family: inherit;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    padding: 2rem 1rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .team-grid,
    .achievements-grid,
    .hackathon-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .section {
        padding: 3rem 1rem;
    }
}