*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #e2e8f0;
    background: #0f172a;
}

.path-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    background: #0f172a url("iskarman.png") no-repeat center center;
    background-size: cover;
    will-change: background-position, background-size;
}

.path-marker {
    position: fixed;
    z-index: 2;
    width: 1.1rem;
    height: 1.1rem;
    pointer-events: none;
    will-change: left, top, transform;
}

.path-marker::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #fef08a, #facc15 55%, #ca8a04);
    box-shadow:
        0 0 0.5rem rgba(250, 204, 21, 0.95),
        0 0 1.25rem rgba(250, 204, 21, 0.55),
        0 0 2rem rgba(250, 204, 21, 0.25);
}

.path-marker::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0.55rem;
    height: 0.55rem;
    margin: -0.275rem 0 0 -0.55rem;
    border-radius: 50% 0 50% 50%;
    background: rgba(254, 240, 138, 0.45);
    transform: rotate(-45deg);
    animation: path-wake 1.2s ease-out infinite;
}

@keyframes path-wake {
    0% {
        opacity: 0.7;
        transform: rotate(-45deg) scale(1);
    }
    100% {
        opacity: 0;
        transform: rotate(-45deg) scale(2.2);
    }
}

@media (prefers-reduced-motion: reduce) {
    .path-marker::after {
        animation: none;
        opacity: 0;
    }

    .path-bg {
        will-change: auto;
    }
}

.content {
    position: relative;
    z-index: 3;
}

.locale {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 10;
    display: flex;
    gap: 0.5rem;
}

.locale-flag {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.35rem;
    text-decoration: none;
    background: rgba(15, 23, 42, 0.75);
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 0.5rem;
    backdrop-filter: blur(4px);
    opacity: 0.65;
    transition: opacity 0.15s ease, border-color 0.15s ease;
}

.locale-flag:hover,
.locale-flag.active {
    opacity: 1;
    border-color: rgba(56, 189, 248, 0.6);
}

.menu {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 10;
}

.menu summary {
    list-style: none;
    cursor: pointer;
    padding: 0.5rem 1rem;
    background: rgba(15, 23, 42, 0.75);
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 0.5rem;
    font-weight: 600;
    backdrop-filter: blur(4px);
    user-select: none;
}

.menu summary::-webkit-details-marker {
    display: none;
}

.menu[open] summary {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.menu nav {
    display: flex;
    flex-direction: column;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-top: none;
    border-radius: 0 0 0.5rem 0.5rem;
    backdrop-filter: blur(4px);
    overflow: hidden;
}

.menu nav a {
    padding: 0.75rem 1rem;
    color: #e2e8f0;
    text-decoration: none;
    border-top: 1px solid rgba(148, 163, 184, 0.15);
    transition: background 0.15s ease;
}

.menu nav a:hover {
    background: rgba(56, 189, 248, 0.15);
    color: #7dd3fc;
}

.content {
    width: 100%;
    max-width: 32rem;
    margin: 0 auto;
    padding: 0 1.5rem 3rem;
}

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

section {
    text-align: center;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    background: rgba(15, 23, 42, 0.55);
    border-radius: 0.75rem;
    backdrop-filter: blur(4px);
    scroll-margin-top: 1rem;
}

.hero-inner {
    text-align: center;
    padding: 1.5rem 2rem;
    background: rgba(15, 23, 42, 0.55);
    border-radius: 0.75rem;
    backdrop-filter: blur(4px);
    width: max(100%, 36rem);
    max-width: calc(100vw - 3rem);
    margin-inline: auto;
    transform: translateY(-25vh);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 0.75rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 0.75rem;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tagline {
    font-size: 1.125rem;
    color: #94a3b8;
    margin: 0.75rem 0 0;
}

.countdown {
    display: flex;
    flex-wrap: nowrap;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem 0.35rem;
    font-variant-numeric: tabular-nums;
}

.countdown-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #f8fafc;
}

.countdown-unit {
    font-size: 0.75rem;
    color: #94a3b8;
    margin-right: 0.35rem;
}

.countdown-sep {
    font-size: 1.25rem;
    font-weight: 600;
    color: #64748b;
    margin: 0 0.15rem;
}

section p {
    margin: 0;
}

section p.links {
    margin-top: 1rem;
}

section a {
    color: #38bdf8;
    text-decoration: none;
    font-weight: 500;
}

section a:hover {
    color: #7dd3fc;
}