* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #00897B;
    --primary-light: #26A69A;
    --primary-dark: #00695C;
    --accent-purple: #a78bfa;
    --accent-pink: #f472b6;
    --accent-orange: #fb923c;
    --accent-cyan: #2dd4bf;
    --accent-yellow: #fbbf24;
    --accent-blue: #38bdf8;
}

body {
    font-family: 'Outfit', sans-serif;
    overflow-x: hidden;
    background: #ffffff;
    color: #1a1a1a;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 0.5rem 0;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    padding: 0rem 0;
}

.navbar .container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
    font-family: 'Space Grotesk', sans-serif;
}

.navbar-brand img {
    height: 70px;
    filter: drop-shadow(0 3px 8px rgba(0, 137, 123, 0.25));
    transition: all 0.3s;
}

.navbar-brand span {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.nav-menu {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.7rem 1.2rem;
    border-radius: 12px;
    transition: all 0.3s;
}

.nav-menu a:hover {
    background: rgba(0, 137, 123, 0.1);
    color: var(--primary);
}

.nav-item {
    position: relative;
}

.nav-item .dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #fff;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    padding: 0.5rem;
    list-style: none;
    min-width: 200px;
}

.nav-item:hover .dropdown-menu {
    display: block;
}

.nav-item .dropdown-menu .nav-item {
    width: 100%;
}

.nav-item .dropdown-menu .nav-link {
    width: 100%;
    display: block;
}

.nav-item .fas {
    font-size: 0.7rem;
    margin-left: 0.5rem;
    transition: all 0.3s;
}

.nav-item:hover > a > .fas {
    transform: rotate(180deg);
}



.btn-login {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%) !important;
    color: white !important;
    padding: 0.7rem 1.8rem !important;
    border-radius: 25px !important;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(0, 137, 123, 0.3);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 137, 123, 0.4);
}

/* Hero Section - White with Colorful Bubbles */
.hero {
    background: #ffffff;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    padding-top: 100px;
    padding-bottom: 4rem;
}

/* Big Colorful Bubbles */
.bubble {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    animation: float 20s infinite ease-in-out;
}

.bubble-1 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, var(--accent-purple) 0%, #c084fc 100%);
    top: 10%;
    left: 5%;
    opacity: 0.9;
    box-shadow: 0 30px 80px rgba(167, 139, 250, 0.4);
    animation-delay: 0s;
}

.bubble-2 {
    width: 280px;
    height: 280px;
    background: linear-gradient(135deg, var(--accent-cyan) 0%, #14b8a6 100%);
    top: 15%;
    right: 8%;
    opacity: 0.85;
    box-shadow: 0 25px 70px rgba(45, 212, 191, 0.4);
    animation-delay: 2s;
}

.bubble-3 {
    width: 320px;
    height: 320px;
    background: linear-gradient(135deg, var(--accent-pink) 0%, #ec4899 100%);
    bottom: 10%;
    right: 10%;
    opacity: 0.9;
    box-shadow: 0 30px 80px rgba(244, 114, 182, 0.4);
    animation-delay: 4s;
}

.bubble-4 {
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, var(--accent-orange) 0%, #f97316 100%);
    bottom: 15%;
    left: 8%;
    opacity: 0.85;
    box-shadow: 0 25px 70px rgba(251, 146, 60, 0.4);
    animation-delay: 6s;
}

.bubble-5 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--accent-yellow) 0%, #f59e0b 100%);
    top: 50%;
    left: 15%;
    opacity: 0.8;
    box-shadow: 0 20px 60px rgba(251, 191, 36, 0.4);
    animation-delay: 3s;
}

.bubble-6 {
    width: 220px;
    height: 220px;
    background: linear-gradient(135deg, var(--accent-blue) 0%, #0ea5e9 100%);
    top: 40%;
    right: 12%;
    opacity: 0.8;
    box-shadow: 0 22px 65px rgba(56, 189, 248, 0.4);
    animation-delay: 5s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.9); }
    75% { transform: translate(40px, 10px) scale(1.05); }
}

.hero-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 2;
}

/* Glass Card for Hero Text */
.hero-glass-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(30px);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 32px;
    padding: 3rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
    align-items: center;
    width: 100%;
}

.hero-text h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 4rem;
    font-weight: 900;
    color: #000;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
}

.hero-text h1 .highlight {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-text p {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.search-box {
    background: white;
    border-radius: 50px;
    padding: 0.5rem;
    display: flex;
    gap: 0.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    border: 2px solid rgba(0, 137, 123, 0.1);
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    background: transparent;
    color: #333;
    font-family: 'Outfit', sans-serif;
}

.search-box input::placeholder {
    color: #999;
}

.search-box button {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    border: none;
    padding: 1rem 2.5rem;
    border-radius: 40px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Outfit', sans-serif;
}

.search-box button:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 137, 123, 0.4);
}

.hero-card-image {
    width: 100%;
    animation: float-smooth 6s ease-in-out infinite;
}

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

/* Section Styles */
section {
    padding: 8rem 0;
    position: relative;
    overflow: hidden;
}

.section-light {
    background: #ffffff;
}

.section-gray {
    background: #f8fafb;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.section-title {
    text-align: center;
    margin-bottom: 5rem;
}

.section-title h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 3.5rem;
    font-weight: 900;
    color: #000;
    margin-bottom: 1rem;
    letter-spacing: -2px;
    line-height: 1.2;
}

.section-title p {
    font-size: 1.2rem;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

/* Big Colorful Bubbles for Sections */
.bg-bubble {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(30px);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 28px;
    padding: 2.5rem 2rem;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    text-decoration: none;
    display: block;
}

.feature-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
    background: rgba(255, 255, 255, 0.95);
}

.feature-icon {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    transition: all 0.4s;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.feature-icon i {
    font-size: 3rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0;
}

/* Colors for feature cards */
.feature-card:nth-child(6n+1) .feature-icon { background: linear-gradient(135deg, var(--accent-purple) 0%, #c084fc 100%); }
.feature-card:nth-child(6n+2) .feature-icon { background: linear-gradient(135deg, var(--accent-yellow) 0%, #f59e0b 100%); }
.feature-card:nth-child(6n+3) .feature-icon { background: linear-gradient(135deg, var(--accent-cyan) 0%, #14b8a6 100%); }
.feature-card:nth-child(6n+4) .feature-icon { background: linear-gradient(135deg, var(--accent-pink) 0%, #ec4899 100%); }
.feature-card:nth-child(6n+5) .feature-icon { background: linear-gradient(135deg, var(--accent-orange) 0%, #f97316 100%); }
.feature-card:nth-child(6n+6) .feature-icon { background: linear-gradient(135deg, var(--accent-blue) 0%, #0ea5e9 100%); }

/* Organization Cards */
.org-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.org-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(30px);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 32px;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.4s;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    text-decoration: none;
    display: block;
    position: relative;
}

.org-card::after {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 180px;
    height: 180px;
    border-radius: 50%;
    opacity: 0.15;
    z-index: -1;
    transition: all 0.4s;
}

.org-card:nth-child(3n+1)::after { background: linear-gradient(135deg, var(--accent-purple) 0%, #c084fc 100%); }
.org-card:nth-child(3n+2)::after { background: linear-gradient(135deg, var(--accent-cyan) 0%, #14b8a6 100%); }
.org-card:nth-child(3n+3)::after { background: linear-gradient(135deg, var(--accent-pink) 0%, #ec4899 100%); }

.org-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
    background: rgba(255, 255, 255, 0.95);
}

.org-card:hover::after {
    opacity: 0.25;
    transform: translateX(-50%) scale(1.1);
}

.org-logo {
    width: 140px;
    height: 140px;
    margin: 0 auto 2rem;
    border-radius: 50%;
    background: white;
    padding: 1.5rem;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.4s;
}

.org-card:hover .org-logo {
    transform: scale(1.1);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.org-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.org-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 1rem;
}

.badge {
    display: inline-block;
    padding: 0.6rem 1.3rem;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.badge-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
}

.badge-secondary {
    background: linear-gradient(135deg, #6366f1 0%, #818cf8 100%);
    color: white;
}

.org-stats {
    color: #666;
    font-size: 0.95rem;
    margin-top: 1rem;
}

.org-stats i {
    color: var(--primary);
    margin-right: 0.5rem;
}

/* Dataset Cards */
.dataset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.dataset-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(30px);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 28px;
    overflow: hidden;
    transition: all 0.4s;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    text-decoration: none;
    display: block;
}

.dataset-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
    background: rgba(255, 255, 255, 0.95);
}

.dataset-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

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

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

.dataset-content {
    padding: 2rem;
}

.dataset-content .badge {
    margin-bottom: 1rem;
}

.dataset-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 0.8rem;
    line-height: 1.5;
}

.dataset-meta {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.dataset-meta i {
    color: var(--primary);
    margin-right: 0.3rem;
}

.dataset-footer {
    padding: 1.2rem 2rem;
    background: rgba(0, 0, 0, 0.02);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    transition: all 0.3s;
}

.dataset-card:hover .dataset-footer {
    background: rgba(0, 137, 123, 0.05);
}

.dataset-footer img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.dataset-footer span {
    font-size: 0.9rem;
    color: #666;
    font-weight: 600;
}

/* Footer - Matching Design */
footer {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(30px);
    border-top: 2px solid rgba(0, 137, 123, 0.1);
    color: #333;
    padding: 4rem 0 0;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent 0%, var(--primary) 50%, transparent 100%);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.footer-brand img {
    height: 60px;
}

.footer-brand div h3 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.3rem;
}

.footer-brand div p {
    font-size: 0.9rem;
    color: #666;
    margin: 0;
}

.footer-about p {
    line-height: 1.8;
    color: #666;
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: #666;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-links a:hover {
    color: var(--primary);
    transform: translateX(8px);
}

.footer-links i {
    color: var(--primary);
}

.footer-bottom {
    padding: 1.5rem 0;
    text-align: center;
    background: rgba(0, 137, 123, 0.05);
    backdrop-filter: blur(10px);
}

.footer-bottom p {
    margin: 0;
    color: #666;
    font-size: 0.9rem;
}

/* Scroll to Top */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border: 3px solid var(--primary);
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.4s;
    box-shadow: 0 10px 40px rgba(0, 137, 123, 0.3);
    z-index: 999;
}

.scroll-top:hover {
    transform: translateY(-10px) scale(1.1);
    box-shadow: 0 20px 60px rgba(0, 137, 123, 0.5);
    background: var(--primary);
}

.scroll-top i {
    font-size: 1.5rem;
    color: var(--primary);
    transition: all 0.3s;
}

.scroll-top:hover i {
    color: white;
}

/* Navbar Toggler */
.navbar-toggler {
    display: none;
    background: none;
    border: none;
    color: var(--primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 968px) {
    .hero-glass-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-card-image {
        display: none;
    }

    .hero-text h1 {
        font-size: 2.8rem;
    }

    .hero-text h2 {
        font-size: 1.6rem;
    }

    .search-box {
        flex-direction: column;
        gap: 1rem;
        background: transparent;
        border: none;
        box-shadow: none;
        padding: 0;
    }

    .search-box input {
        text-align: center;
        border: 2px solid rgba(0, 137, 123, 0.1);
        border-radius: 50px;
        background: white;
    }

    .section-title h2 {
        font-size: 2.8rem;
    }

    .navbar-toggler {
        display: block;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
        padding: 1rem 0;
        gap: 0;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
        text-align: center;
    }

    .nav-menu a {
        padding: 1rem 1.2rem;
        width: 100%;
        display: block;
    }

    .nav-item .dropdown-menu {
        position: static;
        box-shadow: none;
        border-radius: 0;
        min-width: unset;
        background: rgba(0, 137, 123, 0.05);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 640px) {
    .hero-text h1 {
        font-size: 2.2rem;
    }

    .hero-text h2 {
        font-size: 1.5rem;
    }

    .hero-glass-card {
        padding: 2rem;
    }

    .section-title h2 {
        font-size: 2rem;
    }

    section {
        padding: 5rem 0;
    }

    .features-grid,
    .org-grid,
    .dataset-grid {
        grid-template-columns: 1fr;
    }

    .bubble-1,
    .bubble-2,
    .bubble-3,
    .bubble-4,
    .bubble-5,
    .bubble-6 {
        opacity: 0.5;
    }
}