/* Custom variables for Dark and Light theme adaptability */
:root,
[data-bs-theme="dark"] {
    --bg-deep: #050814;
    --bg-deep-secondary: #0a1024;
    --bg-card: rgba(10, 16, 36, 0.45);
    --border-glass: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-gradient-1: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    --accent-gradient-2: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --accent-glow-1: 0 0 20px rgba(0, 242, 254, 0.35);
    --accent-glow-2: 0 0 25px rgba(99, 102, 241, 0.4);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Layout specific theme variables */
    --glow-1: radial-gradient(circle, rgba(79, 172, 254, 0.12) 0%, rgba(5, 8, 20, 0) 70%);
    --glow-2: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, rgba(5, 8, 20, 0) 70%);
    --glow-3: radial-gradient(circle, rgba(0, 242, 254, 0.08) 0%, rgba(5, 8, 20, 0) 70%);
    --footer-bg: #03050a;
    --social-btn-bg: rgba(255, 255, 255, 0.03);
    --social-btn-border: rgba(255, 255, 255, 0.06);
    --btn-primary-text: #050814;
    --navbar-bg: rgba(5, 8, 20, 0.6);
    --badge-bg: rgba(255, 255, 255, 0.03);
    --badge-shadow: inset 0 0 10px rgba(255, 255, 255, 0.02);
    --outline-btn-border: rgba(255, 255, 255, 0.15);
    --outline-btn-hover-bg: rgba(255, 255, 255, 0.05);
    --icon-box-bg: rgba(255, 255, 255, 0.02);
    --icon-box-border: rgba(255, 255, 255, 0.06);
    --card-tag-bg: rgba(255, 255, 255, 0.03);
    --card-tag-border: rgba(255, 255, 255, 0.06);
}

[data-bs-theme="light"] {
    --bg-deep: #f5f7fc;
    --bg-deep-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.75);
    --border-glass: rgba(15, 23, 42, 0.06);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-gradient-1: linear-gradient(135deg, #00b4db 0%, #0083b0 100%);
    --accent-gradient-2: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    --accent-glow-1: 0 10px 25px rgba(0, 180, 219, 0.15);
    --accent-glow-2: 0 10px 30px rgba(79, 70, 229, 0.15);
    
    /* Layout specific theme variables */
    --glow-1: radial-gradient(circle, rgba(0, 180, 219, 0.08) 0%, rgba(245, 247, 252, 0) 70%);
    --glow-2: radial-gradient(circle, rgba(79, 70, 229, 0.06) 0%, rgba(245, 247, 252, 0) 70%);
    --glow-3: radial-gradient(circle, rgba(0, 180, 219, 0.05) 0%, rgba(245, 247, 252, 0) 70%);
    --footer-bg: var(--bg-deep-secondary);
    --social-btn-bg: rgba(15, 23, 42, 0.03);
    --social-btn-border: rgba(15, 23, 42, 0.06);
    --btn-primary-text: #ffffff;
    --navbar-bg: rgba(255, 255, 255, 0.75);
    --badge-bg: rgba(15, 23, 42, 0.04);
    --badge-shadow: inset 0 0 10px rgba(15, 23, 42, 0.01);
    --outline-btn-border: rgba(15, 23, 42, 0.12);
    --outline-btn-hover-bg: rgba(15, 23, 42, 0.03);
    --icon-box-bg: rgba(15, 23, 42, 0.02);
    --icon-box-border: rgba(15, 23, 42, 0.06);
    --card-tag-bg: rgba(15, 23, 42, 0.03);
    --card-tag-border: rgba(15, 23, 42, 0.06);
}

/* Base styles */
body {
    background-color: var(--bg-deep);
    color: var(--text-primary);
    font-family: var(--font-body);
    overflow-x: hidden;
    letter-spacing: -0.01em;
    transition: background-color 0.4s ease, color 0.4s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* Background Glows */
.bg-glow-container {
    position: relative;
    width: 100%;
}

.bg-glow-radial {
    position: absolute;
    width: 50vw;
    height: 50vw;
    background: var(--glow-1);
    z-index: -1;
    pointer-events: none;
    filter: blur(60px);
}

.bg-glow-left {
    top: -5%;
    left: -15%;
}

.bg-glow-right {
    top: 40%;
    right: -15%;
    background: var(--glow-2);
}

/* Navbar styles */
.navbar-custom {
    background: var(--navbar-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-glass);
    transition: var(--transition-smooth);
    padding: 1.25rem 0;
    z-index: 1050;
}

.navbar-custom.scrolled {
    background: var(--bg-deep-secondary);
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border-glass);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
}

.navbar-brand-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand-logo .logo-text {
    background: var(--accent-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.navbar-brand-logo img {
    object-fit: contain;
    transition: var(--transition-smooth);
}

[data-bs-theme="dark"] .navbar-brand-logo img {
    filter: brightness(1.35) contrast(1.05) drop-shadow(0 0 10px rgba(0, 242, 254, 0.45));
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 500;
    color: var(--text-secondary) !important;
    transition: var(--transition-smooth);
    font-size: 0.95rem;
    padding: 0.5rem 1rem !important;
}

.nav-link:hover,
.nav-link.active,
.show>.nav-link {
    color: var(--text-primary) !important;
    text-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
}

.navbar-custom .dropdown-menu {
    background: var(--bg-deep-secondary);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.15);
    border-radius: 12px;
    padding: 0.75rem;
    margin-top: 10px;
}

.navbar-custom .dropdown-item {
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-weight: 500;
    border-radius: 8px;
    padding: 0.6rem 1rem;
    transition: var(--transition-smooth);
}

.navbar-custom .dropdown-item:hover {
    background: rgba(15, 23, 42, 0.03);
    color: #00b4db;
    padding-left: 1.25rem;
}

/* Buttons */
.btn-primary-glow {
    background: var(--accent-gradient-1);
    color: var(--btn-primary-text) !important;
    font-family: var(--font-heading);
    font-weight: 600;
    border: none;
    border-radius: 50px;
    padding: 0.75rem 1.75rem;
    box-shadow: var(--accent-glow-1);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary-glow::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0083b0 0%, #00b4db 100%);
    opacity: 0;
    z-index: -1;
    transition: var(--transition-smooth);
}

.btn-primary-glow:hover {
    transform: translateY(-3px);
    box-shadow: var(--accent-glow-1);
}

.btn-primary-glow:hover::after {
    opacity: 1;
}

.btn-secondary-outline {
    background: transparent;
    color: var(--text-primary) !important;
    font-family: var(--font-heading);
    font-weight: 600;
    border: 1.5px solid var(--outline-btn-border);
    border-radius: 50px;
    padding: 0.75rem 1.75rem;
    transition: var(--transition-smooth);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.btn-secondary-outline:hover {
    background: var(--outline-btn-hover-bg);
    border-color: #00b4db;
    box-shadow: 0 5px 15px rgba(0, 180, 219, 0.1);
    transform: translateY(-3px);
}

/* Hero Section */
.about-hero {
    padding-top: 10rem;
    padding-bottom: 5rem;
    position: relative;
}

.tech-badge {
    display: inline-flex;
    align-items: center;
    background: var(--badge-bg);
    border: 1px solid var(--border-glass);
    border-radius: 50px;
    padding: 0.5rem 1.25rem;
    margin-bottom: 1.5rem;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: var(--badge-shadow);
}

.tech-badge-dot {
    width: 8px;
    height: 8px;
    background-color: #00f2fe;
    border-radius: 50%;
    margin-right: 0.75rem;
    box-shadow: 0 0 10px #00f2fe;
}

.hero-title {
    font-size: clamp(2.5rem, 5.5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-title span {
    background: var(--accent-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
}

/* Glass Card */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    padding: 2.5rem;
    transition: var(--transition-smooth);
    height: 100%;
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 242, 254, 0.2);
}

.card-icon-box {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: var(--icon-box-bg);
    border: 1px solid var(--icon-box-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    margin-bottom: 1.5rem;
    color: #00b4db;
    transition: var(--transition-smooth);
}

.glass-card:hover .card-icon-box {
    background: var(--accent-gradient-1);
    color: var(--btn-primary-text);
}

/* Timeline Layout */
.timeline-section {
    padding: 6rem 0;
    position: relative;
}

.timeline-container {
    position: relative;
    max-width: 900px;
    margin: 4rem auto 0 auto;
}

.timeline-container::after {
    content: '';
    position: absolute;
    width: 2px;
    background: var(--border-glass);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1px;
    z-index: 1;
}

.timeline-item {
    padding: 1.5rem 0;
    position: relative;
    width: 50%;
    z-index: 2;
}

.timeline-item.left {
    left: 0;
    padding-right: 3rem;
}

.timeline-item.right {
    left: 50%;
    padding-left: 3rem;
}

.timeline-badge {
    width: 16px;
    height: 16px;
    background: var(--bg-deep);
    border: 3px solid #00b4db;
    border-radius: 50%;
    position: absolute;
    top: 2.25rem;
    left: 50%;
    margin-left: -8px;
    z-index: 10;
    transition: var(--transition-smooth);
    box-shadow: 0 0 10px rgba(0, 180, 219, 0.5);
}

.timeline-item:hover .timeline-badge {
    background: #00b4db;
    transform: scale(1.3);
    box-shadow: 0 0 15px rgba(0, 180, 219, 0.8);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 1.75rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition-smooth);
}

.timeline-item:hover .timeline-content {
    border-color: rgba(0, 242, 254, 0.15);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.timeline-year {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: #00b4db;
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.timeline-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* Team Grid styling */
.team-section {
    padding: 6rem 0;
}

.team-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    overflow: hidden;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition-smooth);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.team-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 242, 254, 0.2);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.2);
}

.team-img-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1 / 1;
}

.team-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.team-card:hover .team-img-wrapper img {
    transform: scale(1.03);
}

.team-details {
    padding: 2rem 1.75rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.team-role {
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: #00b4db;
    margin-bottom: 0.5rem;
}

.team-name {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.85rem;
}

.team-bio {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.team-socials {
    display: flex;
    gap: 0.75rem;
}

.team-socials a {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    text-decoration: none;
    font-size: 0.82rem;
}

.team-socials a:hover {
    background: var(--accent-gradient-1);
    color: var(--btn-primary-text);
    border-color: transparent;
}

/* Call to Action Banner */
.cta-banner-section {
    padding: 6rem 0;
    position: relative;
}

.cta-box {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 32px;
    padding: 4.5rem 2.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.cta-box-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.08) 0%, rgba(5, 8, 20, 0) 60%);
    pointer-events: none;
    z-index: -1;
}

.cta-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 1.25rem;
}

.cta-desc {
    max-width: 650px;
    margin: 0 auto 2.5rem auto;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.6;
}

/* Footer styles */
.footer-custom {
    background: var(--footer-bg);
    border-top: 1px solid var(--border-glass);
    padding: 6rem 0 2.5rem 0;
    color: var(--text-secondary);
    font-size: 0.92rem;
}

.footer-title {
    color: var(--text-primary);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 1.75rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.85rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    color: #00b4db;
    padding-left: 6px;
}

.footer-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.55rem;
    letter-spacing: -0.03em;
    margin-bottom: 1.25rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-logo .logo-text {
    background: var(--accent-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.social-links {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.social-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--social-btn-bg);
    border: 1px solid var(--social-btn-border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
    text-decoration: none;
}

.social-btn:hover {
    background: var(--accent-gradient-1);
    color: var(--btn-primary-text);
    box-shadow: var(--accent-glow-1);
    transform: translateY(-3px);
}

.footer-divider {
    height: 1px;
    background: rgba(15, 23, 42, 0.06);
    margin: 5rem 0 2.5rem 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.25rem;
}

.footer-bottom-links {
    display: flex;
    gap: 1.5rem;
}

.footer-bottom-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-bottom-links a:hover {
    color: #00b4db;
}

.newsletter-input {
    background: var(--bg-deep-secondary) !important;
    border: 1px solid var(--border-glass) !important;
    color: var(--text-primary) !important;
}

.newsletter-input::placeholder {
    color: var(--text-secondary) !important;
    opacity: 0.75;
}

.newsletter-input:focus {
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.25) !important;
    border-color: #00b4db !important;
}

/* Responsiveness */
@media (max-width: 991.98px) {
    .navbar-custom {
        background: var(--bg-deep);
    }

    .navbar-custom .navbar-collapse {
        margin-top: 1rem;
        border-top: 1px solid var(--border-glass);
        padding-top: 1rem;
    }

    .navbar-custom .nav-link {
        padding: 0.6rem 0 !important;
    }

    .navbar-custom .btn-primary-glow {
        margin-top: 1rem;
        display: block;
        text-align: center;
    }

    .timeline-container::after {
        left: 30px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 5rem !important;
        padding-right: 0 !important;
    }

    .timeline-item.left, 
    .timeline-item.right {
        left: 0;
    }

    .timeline-badge {
        left: 30px;
        margin-left: -8px;
    }
}