/* SMArt Home — teaser
   ------------------------------------------------------------------ */

:root {
    --bg: #04060b;
    --bg-lift: #0a1018;
    --ink: #eef3fb;
    --ink-dim: rgba(238, 243, 251, 0.55);
    --brand: #008dff;
    --brand-soft: #5cb8ff;
    --font: 'Roboto Flex', 'Roboto', ui-sans-serif, system-ui, -apple-system,
        'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

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

html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
    background-color: var(--bg);
}

body {
    color: var(--ink);
    font-family: var(--font);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
}

/* Scena
   ------------------------------------------------------------------ */

.stage {
    position: relative;
    height: 100%;
    min-height: 100svh;
    width: 100%;
    display: grid;
    place-items: center;
    overflow: hidden;
    isolation: isolate;
}

/* Poświata — powolny, nieregularny oddech światła w tle */
.aura {
    position: absolute;
    inset: -25%;
    z-index: -4;
    background:
        radial-gradient(38% 42% at 28% 32%, rgba(0, 141, 255, 0.38) 0%, rgba(0, 141, 255, 0) 68%),
        radial-gradient(34% 38% at 74% 66%, rgba(92, 184, 255, 0.24) 0%, rgba(92, 184, 255, 0) 70%),
        radial-gradient(60% 60% at 50% 50%, rgba(10, 16, 24, 0.9) 0%, rgba(4, 6, 11, 1) 100%);
    filter: blur(18px);
    animation: drift 34s ease-in-out infinite alternate;
}

/* Siatka — ledwie widoczny plan domu */
.grid {
    position: absolute;
    inset: 0;
    z-index: -3;
    background-image:
        linear-gradient(to right, rgba(120, 180, 255, 0.16) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(120, 180, 255, 0.16) 1px, transparent 1px);
    background-size: 72px 72px;
    -webkit-mask-image: radial-gradient(58% 58% at 50% 50%, #000 0%, transparent 78%);
    mask-image: radial-gradient(58% 58% at 50% 50%, #000 0%, transparent 78%);
    opacity: 0;
    animation: grid-in 2.6s 0.6s ease-out forwards;
}

/* Ziarno — miękka faktura zamiast płaskiego czarnego tła */
.grain {
    position: absolute;
    inset: -100%;
    z-index: -2;
    opacity: 0.4;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)' opacity='0.36'/%3E%3C/svg%3E");
    animation: grain 6s steps(6) infinite;
}

.vignette {
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(78% 78% at 50% 50%, transparent 42%, rgba(0, 0, 0, 0.72) 100%);
}

/* Logo i komunikat
   ------------------------------------------------------------------ */

.lockup {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 2rem 1.5rem;
    max-width: 100%;
}

.signet {
    width: clamp(104px, 17vmin, 168px);
    height: auto;
    display: block;
    opacity: 0;
    animation:
        reveal 1.6s 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards,
        breathe 7s 2s ease-in-out infinite;
}

.signet__house {
    fill: var(--ink);
}

.signet__accent {
    fill: var(--brand);
}

.wordmark {
    margin: clamp(1.4rem, 3.5vmin, 2.2rem) 0 0;
    font-size: clamp(1.5rem, 5vmin, 2.75rem);
    font-weight: 600;
    letter-spacing: 0.08em;
    line-height: 1.15;
    color: var(--ink);
    text-wrap: balance;
    opacity: 0;
    animation: reveal 1.6s 0.55s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.wordmark__sep {
    color: var(--brand-soft);
    margin-right: 0.35em;
}

.wordmark__edition {
    font-weight: 300;
    letter-spacing: 0.1em;
    color: rgba(238, 243, 251, 0.82);
}

/* Na wąskich ekranach edycja schodzi do własnej linii — bez wiszącego dwukropka */
@media (max-width: 620px) {
    .wordmark__name,
    .wordmark__edition {
        display: block;
    }

    .wordmark__sep {
        display: none;
    }

    .wordmark__edition {
        margin-top: 0.35em;
        font-size: 0.68em;
        letter-spacing: 0.22em;
        color: var(--brand-soft);
    }
}

.rule {
    width: min(60vw, 320px);
    height: 1px;
    margin: clamp(1.5rem, 4vmin, 2.4rem) 0;
    background: linear-gradient(90deg, transparent, rgba(0, 141, 255, 0.85), transparent);
    transform: scaleX(0);
    transform-origin: center;
    animation: rule-in 1.8s 0.95s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.soon {
    margin: 0;
    font-size: clamp(0.95rem, 2.6vmin, 1.35rem);
    font-weight: 300;
    letter-spacing: 0.62em;
    text-indent: 0.62em; /* kompensacja odstępu po ostatniej literze */
    text-transform: uppercase;
    color: var(--ink-dim);
    opacity: 0;
    animation: reveal 1.8s 1.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Światło przesuwające się po napisie */
.soon span {
    background-image: linear-gradient(
        100deg,
        var(--ink-dim) 0%,
        var(--ink-dim) 38%,
        #ffffff 48%,
        var(--brand-soft) 54%,
        var(--ink-dim) 64%,
        var(--ink-dim) 100%
    );
    background-size: 300% 100%;
    background-position: 120% 0;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: sheen 7s 2.6s ease-in-out infinite;
}

/* Animacje
   ------------------------------------------------------------------ */

@keyframes reveal {
    from {
        opacity: 0;
        transform: translateY(14px);
        filter: blur(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

@keyframes grid-in {
    to {
        opacity: 1;
    }
}

@keyframes rule-in {
    to {
        transform: scaleX(1);
    }
}

@keyframes drift {
    0% {
        transform: translate3d(-2%, -1%, 0) scale(1);
    }
    50% {
        transform: translate3d(2%, 2%, 0) scale(1.08);
    }
    100% {
        transform: translate3d(-1%, 2%, 0) scale(1.03);
    }
}

@keyframes breathe {
    0%,
    100% {
        filter: drop-shadow(0 0 22px rgba(0, 141, 255, 0.28));
    }
    50% {
        filter: drop-shadow(0 0 46px rgba(0, 141, 255, 0.55));
    }
}

@keyframes grain {
    0% {
        transform: translate3d(0, 0, 0);
    }
    20% {
        transform: translate3d(-4%, 3%, 0);
    }
    40% {
        transform: translate3d(3%, -4%, 0);
    }
    60% {
        transform: translate3d(-3%, -2%, 0);
    }
    80% {
        transform: translate3d(4%, 2%, 0);
    }
    100% {
        transform: translate3d(0, 0, 0);
    }
}

@keyframes sheen {
    0% {
        background-position: 120% 0;
    }
    45%,
    100% {
        background-position: -60% 0;
    }
}

/* Mniej ruchu — pełna treść bez animacji
   ------------------------------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
    .signet,
    .wordmark,
    .soon,
    .grid {
        opacity: 1;
        transform: none;
        filter: none;
        animation: none;
    }

    .rule {
        transform: scaleX(1);
        animation: none;
    }

    .aura,
    .grain {
        animation: none;
    }

    .soon span {
        animation: none;
        background: none;
        -webkit-background-clip: border-box;
        background-clip: border-box;
        color: var(--ink-dim);
    }
}

/* Wysoki kontrast — rezygnujemy z efektów na rzecz czytelności */

@media (prefers-contrast: more) {
    .grain,
    .grid,
    .vignette,
    .aura {
        display: none;
    }

    .soon,
    .soon span {
        color: var(--ink);
        background: none;
        -webkit-text-fill-color: var(--ink);
    }
}

@media (max-width: 420px) {
    .soon {
        letter-spacing: 0.42em;
        text-indent: 0.42em;
    }
}