:root {
    --bg-start: #02060b;
    --bg-mid: #07131c;
    --bg-end: #0b1d2a;
    --accent: #38cfd9;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Plus Jakarta Sans', sans-serif;
    background: #03070d;
    color: #f4fbff;
}

.site-nav {
    background: linear-gradient(90deg, rgba(5, 14, 22, 0.95), rgba(10, 28, 39, 0.9));
    border-bottom: 1px solid rgba(56, 207, 217, 0.36);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(12px);
}

.site-brand {
    padding: 0.22rem 0.65rem 0.22rem 0.28rem;
    border: 1px solid rgba(56, 207, 217, 0.4);
    border-radius: 999px;
    background: rgba(3, 12, 19, 0.72);
}

.menu-toggle {
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid rgba(56, 207, 217, 0.45);
    border-radius: 0.7rem;
    background: rgba(4, 15, 23, 0.86);
}

.menu-toggle:hover {
    border-color: rgba(56, 207, 217, 0.86);
    box-shadow: 0 0 20px rgba(56, 207, 217, 0.25);
}

.display-font,
h1,
h2,
h3,
h4 {
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.02em;
}

.page-gradient {
    background:
        radial-gradient(circle at 12% 10%, rgba(56, 207, 217, 0.16), transparent 32%),
        radial-gradient(circle at 88% 75%, rgba(56, 207, 217, 0.13), transparent 38%),
        linear-gradient(145deg, var(--bg-start) 0%, var(--bg-mid) 48%, var(--bg-end) 100%);
}

.hero-pattern {
    opacity: 0.2;
    background-image:
        linear-gradient(rgba(56, 207, 217, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 207, 217, 0.1) 1px, transparent 1px);
    background-size: 48px 48px;
}

.surface-card {
    border: 1px solid rgba(56, 207, 217, 0.26);
    border-radius: 1rem;
    background: rgba(4, 12, 18, 0.76);
    backdrop-filter: blur(6px);
}

.metric-card {
    border: 1px solid rgba(56, 207, 217, 0.34);
    border-radius: 1rem;
    background: rgba(3, 10, 15, 0.85);
    padding: 1rem;
}

.chip {
    border: 1px solid rgba(56, 207, 217, 0.5);
    background: rgba(56, 207, 217, 0.11);
    color: #dffbff;
    border-radius: 999px;
    padding: 0.35rem 0.8rem;
    font-size: 0.85rem;
}

.btn-primary {
    background: linear-gradient(135deg, #3ce4f1 0%, #30bcc9 100%);
    color: #03222b;
    border: 1px solid rgba(153, 251, 255, 0.65);
    box-shadow: 0 10px 20px rgba(9, 34, 44, 0.35);
    text-shadow: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #4de9f5 0%, #33c8d6 100%);
    color: #021b22;
}

.nav-link {
    color: #f3fdff;
    font-weight: 500;
    letter-spacing: 0.01em;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0.2rem;
    width: 0;
    height: 2px;
    border-radius: 999px;
    background: var(--accent);
    transition: width 0.2s ease;
}

.nav-link:hover {
    color: #b9f4fb;
}

.nav-link:hover::after {
    width: 100%;
}

.social-link {
    width: 2.1rem;
    height: 2.1rem;
    border-radius: 999px;
    border: 1px solid rgba(56, 207, 217, 0.42);
    background: rgba(5, 15, 22, 0.78);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #e9fdff;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.social-link:hover {
    color: #38cfd9;
    border-color: rgba(56, 207, 217, 0.9);
    transform: translateY(-1px);
    box-shadow: 0 0 16px rgba(56, 207, 217, 0.32);
}

.glow {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 24px rgba(56, 207, 217, 0.34);
}

[data-reveal] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

.filter-btn {
    border: 1px solid rgba(56, 207, 217, 0.42);
    background: rgba(8, 20, 30, 0.92);
    color: #f4fcff;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
    transition: all 0.2s ease;
    min-height: 2.5rem;
    letter-spacing: 0.01em;
}

.filter-btn:hover {
    border-color: rgba(56, 207, 217, 0.88);
    background: rgba(11, 30, 42, 0.96);
    transform: translateY(-1px);
}

.filter-btn:focus-visible {
    outline: 2px solid #9af6ff;
    outline-offset: 2px;
    border-color: rgba(56, 207, 217, 0.96);
}

.filter-btn.active,
.filter-btn.bg-cyan {
    background: linear-gradient(135deg, #4ce8f4 0%, #34c8d5 100%);
    color: #04171f;
    border-color: rgba(166, 250, 255, 0.95);
    box-shadow: 0 0 24px rgba(56, 207, 217, 0.4);
}

[data-slider-prev],
[data-slider-next] {
    background: rgba(244, 252, 255, 0.92);
    color: #041018;
    border: 1px solid rgba(56, 207, 217, 0.9);
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.32);
}

[data-slider-prev]:hover,
[data-slider-next]:hover {
    background: #38cfd9;
    color: #041018;
}

@media (max-width: 767px) {
    #mobile-menu {
        border-top: 1px solid rgba(56, 207, 217, 0.24);
    }

    .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .site-mobile-menu {
        margin-top: 0.4rem;
        border: 1px solid rgba(56, 207, 217, 0.34);
        border-radius: 0 0 1rem 1rem;
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.38);
    }

    .hero-pattern {
        opacity: 0.14;
    }
}