blue.css

:root {
    --sky-0: #03060f;
    --sky-1: #070d1f;
    --line: #15203a;
    --fg: #e6ecfa;
    --dim: #8a97b8;
    --accent: #3b8bff;
    --accent-hi: #6aa8ff;
    --ui: 'Inter', 'Cantarell', 'Noto Sans', 'DejaVu Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
}

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

html, body { height: 100%; }

body {
    font-family: var(--ui);
    color: var(--fg);
    background: var(--sky-0);
    overflow: hidden;
}

/* --- tapeta: powoli dryfujące mgławice (gwiazdy rysuje canvas #sky) --- */
body::before,
body::after {
    content: '';
    position: fixed;
    inset: -12%;
    z-index: -2;
    pointer-events: none;
    will-change: transform;
}
body::before {
    background:
        radial-gradient(ellipse 60% 38% at 62% 46%, rgba(40, 70, 150, 0.26), transparent 70%),
        radial-gradient(ellipse 45% 30% at 30% 68%, rgba(30, 60, 140, 0.18), transparent 70%),
        radial-gradient(ellipse 80% 60% at 50% 40%, var(--sky-1), var(--sky-0) 80%);
    animation: nebula-a 70s ease-in-out infinite alternate;
}
body::after {
    background:
        radial-gradient(ellipse 34% 22% at 24% 28%, rgba(90, 60, 190, 0.14), transparent 70%),
        radial-gradient(ellipse 30% 20% at 78% 74%, rgba(30, 120, 220, 0.12), transparent 70%);
    animation: nebula-b 95s ease-in-out infinite alternate;
}
@keyframes nebula-a {
    from { transform: translate3d(-1.5%, -1%, 0) scale(1) rotate(0deg); }
    to   { transform: translate3d(1.5%, 1.2%, 0) scale(1.08) rotate(2.5deg); }
}
@keyframes nebula-b {
    from { transform: translate3d(2%, 1%, 0) scale(1.05) rotate(0deg); }
    to   { transform: translate3d(-2%, -1.5%, 0) scale(1) rotate(-3deg); }
}

#sky {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

svg {
    fill: none;
    stroke: currentColor;
    stroke-width: 1.75;
    stroke-linecap: round;
    stroke-linejoin: round;
}

:focus-visible { outline: 2px solid var(--accent-hi); outline-offset: 2px; }

/* --- scena: logo + wyszukiwarka --- */
.stage {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: clamp(28px, 6vh, 56px);
    padding: 0 20px 6vh;
}

.logo {
    width: clamp(150px, 26vmin, 290px);
    height: auto;
    user-select: none;
    filter: drop-shadow(0 0 38px rgba(40, 110, 255, 0.28));
    animation: logo-in 0.6s ease-out both;
}
@keyframes logo-in {
    from { opacity: 0; transform: scale(0.94); filter: drop-shadow(0 0 0 rgba(40, 110, 255, 0)); }
}

.search {
    position: relative;
    width: min(560px, 100%);
    display: flex;
    align-items: center;
    background: rgba(10, 17, 36, 0.72);
    border: 1px solid var(--line);
    border-radius: 999px;
    backdrop-filter: blur(8px);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.search:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(59, 139, 255, 0.16), 0 8px 30px rgba(0, 0, 0, 0.45);
}
.search-input {
    width: 100%;
    padding: 15px 56px 15px 24px;
    background: none;
    border: none;
    outline: none;
    color: var(--fg);
    font: 17px/1.2 var(--ui);
}
.search-input::placeholder { color: var(--dim); }
.search-btn {
    position: absolute;
    right: 8px;
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    color: var(--dim);
    background: none;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}
.search-btn svg { width: 18px; height: 18px; }
.search-btn:hover, .search-btn:focus-visible { background: var(--accent); color: #fff; }

@media (prefers-reduced-motion: reduce) {
    .logo { animation: none; }
    body::before, body::after { animation: none; }
    * { transition: none !important; }
}