:root {
    --background: #081521;
    --surface: #102333;
    --primary: #20d5c2;
    --secondary: #45b9e8;
    --text: #f2f7fa;
    --muted: #91a6b5;
}

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

body {
    min-height: 100vh;
    font-family: 'Inter', sans-serif;
    background: var(--background);
    color: var(--text);
    overflow-x: hidden;
    position: relative;
}

/* Background */

.background-glow {
    position: fixed;
    width: 650px;
    height: 650px;
    background: radial-gradient(
        circle,
        rgba(32, 213, 194, 0.12),
        transparent 70%
    );
    top: 10%;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: none;
}

/* Main container */

.maintenance-container {
    max-width: 1150px;
    min-height: 100vh;
    margin: auto;
    padding: 35px 45px;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

/* Header */

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 21px;
    font-weight: 800;
    letter-spacing: 2px;
}

.logo-icon {
    font-size: 32px;
    color: var(--primary);
}

.accent {
    color: var(--primary);
}

.status {
    font-size: 10px;
    letter-spacing: 1.5px;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: 9px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 12px var(--primary);
    animation: pulse 1.8s infinite;
}

/* Hero */

.hero {
    max-width: 720px;
    margin: auto;
    padding: 65px 0;
    text-align: center;
}

.science-icon {
    width: 115px;
    height: 115px;
    margin: 0 auto 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.atom {
    font-size: 65px;
    color: var(--primary);
    text-shadow: 0 0 25px rgba(32, 213, 194, 0.4);
    animation: float 4s ease-in-out infinite;
}

.orbit {
    position: absolute;
    width: 100%;
    height: 40px;
    border: 1px solid rgba(32, 213, 194, 0.5);
    border-radius: 50%;
}

.orbit-one {
    transform: rotate(45deg);
}

.orbit-two {
    transform: rotate(-45deg);
}

.eyebrow {
    color: var(--primary);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 20px;
}

h1 {
    font-size: clamp(40px, 6vw, 65px);
    line-height: 1.13;
    font-weight: 800;
    letter-spacing: -2.5px;
}

h1 span {
    background: linear-gradient(
        90deg,
        var(--primary),
        var(--secondary)
    );
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.description {
    max-width: 540px;
    margin: 24px auto 35px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.9;
}

/* Maintenance card */

.maintenance-card {
    max-width: 560px;
    margin: 0 auto;
    padding: 26px;
    text-align: left;
    background: rgba(16, 35, 51, 0.85);
    border: 1px solid rgba(69, 185, 232, 0.15);
    border-radius: 15px;
    box-shadow: 0 15px 60px rgba(0, 0, 0, 0.2);
}

.card-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 28px;
}

.small-label {
    font-size: 9px;
    letter-spacing: 2px;
    color: var(--muted);
}

.card-heading h2 {
    font-size: 17px;
    margin-top: 7px;
}

.status-badge {
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 10px;
    color: var(--primary);
    background: rgba(32, 213, 194, 0.1);
    white-space: nowrap;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    font-size: 11px;
    color: var(--muted);
    margin-bottom: 12px;
}

.progress-percent {
    color: var(--primary);
    letter-spacing: 3px;
}

.progress-track {
    height: 6px;
    border-radius: 10px;
    background: #203746;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 65%;
    border-radius: 10px;
    background: linear-gradient(
        90deg,
        var(--primary),
        var(--secondary)
    );
    animation: progress-glow 2s infinite alternate;
}

.card-note {
    color: var(--muted);
    font-size: 11px;
    line-height: 1.7;
    margin-top: 17px;
}

/* Return message */

.return-message {
    margin-top: 30px;
    color: #a9bdc9;
    font-size: 12px;
}

.clock-icon {
    color: var(--primary);
    font-size: 18px;
    margin-right: 7px;
    vertical-align: middle;
}

/* Footer */

.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 24px;
    color: var(--muted);
    font-size: 10px;
}

.site-footer a {
    color: var(--primary);
    text-decoration: none;
}

.site-footer a:hover {
    color: var(--secondary);
}

/* Animations */

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 12px var(--primary);
    }
    50% {
        opacity: 0.4;
        box-shadow: 0 0 3px var(--primary);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes progress-glow {
    from {
        filter: brightness(0.85);
    }
    to {
        filter: brightness(1.3);
    }
}

/* Responsive */

@media (max-width: 600px) {

    .maintenance-container {
        padding: 25px 20px;
    }

    .site-header {
        flex-direction: column;
        gap: 18px;
    }

    .hero {
        padding: 65px 0;
    }

    h1 {
        font-size: 42px;
        letter-spacing: -1.5px;
    }

    .description {
        font-size: 13px;
    }

    .maintenance-card {
        padding: 20px;
    }

    .site-footer {
        flex-direction: column;
        text-align: center;
        line-height: 1.8;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
    }
}