* {
    margin: 0;
    padding: 0;

    box-sizing: border-box;
}

:root {
    --mouse-x: 50%;
    --mouse-y: 50%;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;

    background-color: #0f1117;
    color: #f5f7fa;

    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    line-height: 1.6;

    overflow-x: hidden;
}

/* LIQUID BACKGROUND */

.liquid-background {
    position: fixed;
    inset: 0;

    z-index: -10;

    overflow: hidden;

    background:
        linear-gradient(120deg, #0f1117 0%, #111526 48%, #150f23 100%);
}

.liquid-background::before {
    content: "";

    position: absolute;
    inset: -35%;

    background:
        radial-gradient(circle at calc(var(--mouse-x) + 8%) calc(var(--mouse-y) + 4%), rgba(105, 145, 255, 0.36), transparent 22%),
        radial-gradient(circle at calc(var(--mouse-x) - 18%) calc(var(--mouse-y) + 14%), rgba(155, 80, 255, 0.28), transparent 25%),
        radial-gradient(circle at 18% 30%, rgba(55, 105, 255, 0.26), transparent 30%),
        radial-gradient(circle at 82% 42%, rgba(140, 70, 255, 0.24), transparent 32%),
        radial-gradient(circle at 48% 82%, rgba(45, 160, 255, 0.18), transparent 34%);

    filter: blur(42px);

    opacity: 0.95;

    transform: translate3d(0, 0, 0);

    animation: liquidFlow 18s ease-in-out infinite alternate;
}

.liquid-background::after {
    content: "";

    position: absolute;
    inset: -10%;

    background:
        linear-gradient(rgba(255, 255, 255, 0.026) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.026) 1px, transparent 1px);

    background-size: 80px 80px;

    mask-image: radial-gradient(circle at center, black, transparent 72%);
    -webkit-mask-image: radial-gradient(circle at center, black, transparent 72%);

    animation: gridMove 22s linear infinite;
}

@keyframes liquidFlow {
    0% {
        transform: translate3d(-2%, -2%, 0) scale(1);
    }

    50% {
        transform: translate3d(2%, 1%, 0) scale(1.08);
    }

    100% {
        transform: translate3d(-1%, 3%, 0) scale(1.04);
    }
}

@keyframes gridMove {
    from {
        transform: translate3d(0, 0, 0);
    }

    to {
        transform: translate3d(80px, 80px, 0);
    }
}

/* NAVBAR */

.navbar {
    width: 100%;

    display: flex;
    justify-content: space-between;
    align-items: center;

    padding: 24px 80px;

    position: sticky;
    top: 0;

    background-color: rgba(15, 17, 23, 0.78);

    border-bottom: 1px solid rgba(255, 255, 255, 0.06);

    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.04),
        inset 0 -1px 0 rgba(255, 255, 255, 0.02);

    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);

    z-index: 1000;
}

.logo {
    display: flex;
    align-items: center;

    gap: 12px;

    font-size: 1.2rem;
    font-weight: 800;

    letter-spacing: 0.3px;
}

.logo img {
    width: 38px;
    height: 38px;

    min-width: 38px;
    min-height: 38px;

    max-width: 38px;
    max-height: 38px;

    object-fit: contain;

    display: block;

    flex-shrink: 0;
}

/* NAV AREA */

.nav-area {
    position: relative;

    display: flex;
    align-items: center;

    gap: 24px;
}

.nav-links {
    display: flex;

    gap: 32px;

    list-style: none;
}

.nav-links a {
    color: #cfd6e4;

    text-decoration: none;

    font-size: 0.95rem;
    font-weight: 500;

    transition: 0.2s ease;
}

.nav-links a:hover {
    color: white;
}

/* OPTIONS MENU */

.options-button {
    width: 42px;
    height: 42px;

    border-radius: 12px;

    border: 1px solid rgba(255, 255, 255, 0.09);

    background-color: rgba(255, 255, 255, 0.04);

    color: white;

    font-size: 1.25rem;

    cursor: pointer;

    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);

    transition: 0.2s ease;
}

.options-button:hover {
    background-color: rgba(255, 255, 255, 0.08);

    transform: translateY(-1px);
}

.options-menu {
    position: absolute;

    top: 58px;
    right: 0;

    width: 210px;

    padding: 10px;

    display: none;
    flex-direction: column;

    gap: 4px;

    background-color: rgba(15, 17, 23, 0.9);

    border: 1px solid rgba(255, 255, 255, 0.08);

    border-radius: 16px;

    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.04),
        0 18px 50px rgba(0, 0, 0, 0.35);

    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);

    z-index: 2000;
}

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

.options-menu a,
.options-menu button {
    width: 100%;

    padding: 12px 14px;

    border: none;
    border-radius: 10px;

    background: transparent;

    color: #cfd6e4;

    text-align: left;
    text-decoration: none;

    font: inherit;
    font-size: 0.95rem;

    cursor: pointer;

    transition: 0.2s ease;
}

.options-menu a:hover,
.options-menu button:hover {
    color: white;

    background-color: rgba(255, 255, 255, 0.06);
}

/* HERO */

.hero {
    min-height: 90vh;

    display: flex;
    align-items: center;
    justify-content: center;

    padding: 120px 80px;
}

.hero-content {
    max-width: 900px;
}

.hero-tag {
    color: #8aa5ff;

    font-size: 0.85rem;
    font-weight: 700;

    margin-bottom: 18px;

    text-transform: uppercase;

    letter-spacing: 2.5px;
}

.hero h1 {
    font-size: 4.8rem;
    font-weight: 850;

    line-height: 1.02;

    margin-bottom: 28px;

    max-width: 880px;

    letter-spacing: -3px;
}

.hero-description {
    color: #c2cce0;

    font-size: 1.12rem;

    max-width: 700px;

    margin-bottom: 42px;
}

/* BUTTONS */

.hero-buttons {
    display: flex;

    gap: 18px;
}

.primary-button,
.secondary-button {
    padding: 14px 28px;

    border-radius: 12px;

    text-decoration: none;

    font-weight: 700;

    transition: 0.2s ease;
}

.primary-button {
    background-color: white;

    color: #111111;
}

.primary-button:hover {
    transform: translateY(-2px);
}

.secondary-button {
    border: 1px solid rgba(255, 255, 255, 0.16);

    color: white;

    background-color: rgba(255, 255, 255, 0.03);
}

.secondary-button:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

/* SECTIONS */

.featured,
.about-preview {
    padding: 120px 80px;
}

.section-header,
.about-content {
    max-width: 1200px;

    margin: 0 auto;
}

.section-tag {
    color: #8aa5ff;

    text-transform: uppercase;

    letter-spacing: 2.5px;

    font-size: 0.82rem;
    font-weight: 700;

    margin-bottom: 14px;
}

.section-header h2,
.about-content h2 {
    font-size: 2.9rem;
    font-weight: 820;

    margin-bottom: 18px;

    letter-spacing: -1.5px;
}

/* CARDS */

.card-grid {
    margin-top: 60px;

    display: grid;

    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));

    gap: 24px;

    max-width: 1200px;

    margin-left: auto;
    margin-right: auto;
}

.card {
    background-color: rgba(21, 25, 34, 0.72);

    border: 1px solid rgba(255, 255, 255, 0.07);

    border-radius: 20px;

    padding: 32px;

    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.04),
        0 0 0 1px rgba(255, 255, 255, 0.02);

    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);

    transition: 0.25s ease;
}

.card:hover {
    transform: translateY(-4px);

    border-color: rgba(255, 255, 255, 0.16);

    background-color: rgba(26, 31, 42, 0.82);
}

.card h3 {
    margin-bottom: 16px;

    font-size: 1.4rem;
    font-weight: 780;
}

.card p,
.about-content p {
    color: #a7b0c0;
}

/* FOOTER */

.footer {
    padding: 40px;

    border-top: 1px solid rgba(255, 255, 255, 0.06);

    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.04);

    text-align: center;

    color: #7d8ca3;

    background-color: rgba(15, 17, 23, 0.45);

    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.social-links {
    margin-top: 24px;

    display: flex;
    justify-content: center;
    align-items: center;

    gap: 22px;
}

.social-links a {
    display: flex;
    justify-content: center;
    align-items: center;

    transition: 0.25s ease;
}

.social-links img {
    width: 24px;
    height: 24px;

    object-fit: contain;

    opacity: 0.72;

    transition: 0.25s ease;
}

.social-links a:hover img {
    opacity: 1;

    transform: translateY(-2px);

    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.22));
}

/* RESPONSIVE */

@media (max-width: 900px) {

    .navbar {
        padding: 22px 24px;

        flex-direction: column;

        gap: 20px;
    }

    .nav-area {
        width: 100%;

        justify-content: center;

        gap: 16px;
    }

    .nav-links {
        gap: 18px;

        flex-wrap: wrap;

        justify-content: center;
    }

    .options-menu {
        top: 54px;
        right: 0;
    }

    .hero,
    .featured,
    .about-preview {
        padding: 80px 24px;
    }

    .hero {
        min-height: 82vh;
    }

    .hero h1 {
        font-size: 3rem;

        letter-spacing: -1.5px;
    }

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

    .hero-buttons {
        flex-direction: column;

        align-items: flex-start;
    }

    .liquid-background::before {
        filter: blur(28px);

        opacity: 0.75;
    }

    .liquid-background::after {
        opacity: 0.45;
    }

}