* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

:root {
    --bg: #0f0f1e;
    --accent: #c49a3c;
    --accent2: #e8c96b;
    --purple: #6b3fa0;
    --purple2: #9b59d0;
    --text: #e8e0f0;
    --text2: #9080b0;
    --radius: 12px;
    --flip: 620ms;
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

html, body {
    min-height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    overflow-x: hidden;
    /* Убирает "резиновый" скролл, из-за которого Telegram закрывает приложение */
    overscroll-behavior-y: contain;
}

body {
    background: radial-gradient(ellipse 80% 50% at 50% 0%, #1c1040 0%, #0f0f1e 65%);
}

/* ── Фон: медленно пульсирующие звёзды ── */
.stars {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image:
        radial-gradient(1.5px 1.5px at 12% 18%, rgba(255,255,255,0.55), transparent),
        radial-gradient(1.5px 1.5px at 78% 12%, rgba(232,201,107,0.45), transparent),
        radial-gradient(1px 1px at 32% 42%, rgba(255,255,255,0.35), transparent),
        radial-gradient(1.5px 1.5px at 88% 55%, rgba(255,255,255,0.4), transparent),
        radial-gradient(1px 1px at 55% 78%, rgba(155,89,208,0.5), transparent),
        radial-gradient(1.5px 1.5px at 20% 88%, rgba(255,255,255,0.3), transparent);
    animation: twinkle 7s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.5; }
    50%      { opacity: 1; }
}

.container {
    position: relative;
    z-index: 1;
    max-width: 460px;
    margin: 0 auto;
    padding: 24px 16px 130px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

/* ── HEADER ── */
.header {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.header-icon svg {
    width: 48px;
    height: 48px;
    display: block;
    animation: float 5s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50%      { transform: translateY(-5px) rotate(4deg); }
}

h1 {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(130deg, var(--accent2) 0%, var(--purple2) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.25;
}

.subtitle {
    font-size: 13px;
    color: var(--text2);
    line-height: 1.5;
    max-width: 280px;
    min-height: 39px;
    transition: opacity 0.25s ease;
}

/* ── ШАГИ: прошлое → настоящее → будущее ── */
.steps {
    display: flex;
    align-items: center;
    gap: 6px;
    width: 100%;
    max-width: 320px;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.step-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    border: 1.5px solid rgba(255,255,255,0.2);
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s var(--ease-out);
}

.step-label {
    font-size: 10.5px;
    letter-spacing: 0.3px;
    color: var(--text2);
    transition: color 0.3s ease;
}

.step-line {
    flex: 1;
    height: 1.5px;
    background: rgba(255,255,255,0.12);
    position: relative;
    overflow: hidden;
    margin-bottom: 18px;
}

.step-line::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, var(--accent2), var(--purple2));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.45s var(--ease-out);
}

.step-line.filled::after { transform: scaleX(1); }

.step.done .step-dot {
    background: var(--accent2);
    border-color: var(--accent2);
    box-shadow: 0 0 10px rgba(232, 201, 107, 0.65);
}

.step.done .step-label { color: var(--accent2); }

.step.current .step-dot {
    border-color: var(--accent2);
    transform: scale(1.35);
    animation: pulse 1.6s ease-in-out infinite;
}

.step.current .step-label { color: var(--text); }

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(232,201,107,0.5); }
    50%      { box-shadow: 0 0 0 6px rgba(232,201,107,0); }
}

/* ── СЕТКА КАРТ ── */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    width: 100%;
    /* perspective на контейнере — общая точка схода, карты выглядят объёмно */
    perspective: 1400px;
    perspective-origin: 50% 30%;
}

@media (min-width: 400px) {
    .cards-grid { grid-template-columns: repeat(4, 1fr); gap: 10px; }
}

/* ── КАРТА ── */
.card-wrapper {
    position: relative;
    aspect-ratio: 100 / 168;
    cursor: pointer;
    transform-style: preserve-3d;
    animation: deal 0.6s var(--ease-out) backwards;
    animation-delay: calc(var(--i) * 45ms);
}

@keyframes deal {
    from {
        opacity: 0;
        transform: translateY(34px) scale(0.9) rotate(var(--tilt, -4deg));
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1) rotate(0deg);
    }
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform var(--flip) var(--ease-out);
    will-change: transform;
}

.card-wrapper.revealed .card-inner { transform: rotateY(180deg); }

/* Приподнимаем выбранную карту */
.card-wrapper.selected { z-index: 3; }
.card-wrapper.selected .card-inner { transform: rotateY(180deg) translateZ(14px); }

.card-face {
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    overflow: hidden;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    box-shadow: 0 6px 22px rgba(0,0,0,0.55);
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.card-back {
    border: 1.5px solid rgba(196, 154, 60, 0.35);
    background: #12112a;
    transform: rotateY(0deg);
}

.card-front {
    border: 1.5px solid rgba(196, 154, 60, 0.2);
    background: #1a1030;
    transform: rotateY(180deg);
}

.card-face img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    pointer-events: none;
    transition: filter 0.35s ease;
}

/* Перевёрнутая карта — изображение вверх ногами */
.card-wrapper.reversed .card-front img { transform: rotate(180deg); }

/*
 * Затемнение НЕ вешаем на .card-inner: opacity/filter на элементе
 * с preserve-3d уничтожает 3D-контекст и ломает переворот в Safari/Telegram WebView.
 * Поэтому гасим саму лицевую сторону через оверлей + фильтр на <img>.
 */
.card-front::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(12, 10, 26, 0.62);
    opacity: 0;
    transition: opacity 0.35s ease;
    pointer-events: none;
}

.card-wrapper.revealed:not(.selected) .card-front::after { opacity: 1; }
.card-wrapper.revealed:not(.selected) .card-front img { filter: grayscale(65%); }

/* Блик по рубашке — transform вместо background-position (композитится на GPU) */
.card-back::after {
    content: '';
    position: absolute;
    top: 0;
    left: -60%;
    width: 60%;
    height: 100%;
    background: linear-gradient(
        100deg,
        transparent 0%,
        rgba(255, 255, 255, 0.085) 50%,
        transparent 100%
    );
    pointer-events: none;
    animation: shimmer 3.8s linear infinite;
    animation-delay: calc(var(--i) * 240ms);
}

@keyframes shimmer {
    0%        { transform: translateX(0); }
    45%, 100% { transform: translateX(330%); }
}

/* Выбранная карта — золотая рамка */
.card-wrapper.selected .card-front {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent), 0 10px 30px rgba(196, 154, 60, 0.45);
}

/* Отклик на нажатие */
.card-wrapper:active:not(.locked) { transform: scale(0.96); }

.card-wrapper.locked { cursor: default; }

/* ── БЕЙДЖ С НОМЕРОМ ── */
.card-badge {
    position: absolute;
    top: 6px;
    right: 6px;
    z-index: 5;
    width: 21px;
    height: 21px;
    border-radius: 50%;
    background: var(--accent);
    color: #0f0f1e;
    font-size: 11px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.3);
    transition: opacity 0.2s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    pointer-events: none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

.card-wrapper.selected .card-badge {
    opacity: 1;
    transform: scale(1);
    /* Появляется, когда переворот уже почти закончен */
    transition-delay: calc(var(--flip) * 0.55);
}

/* Метка "перевёрнутая" */
.card-tag {
    position: absolute;
    bottom: 5px;
    left: 50%;
    transform: translateX(-50%) translateY(6px);
    z-index: 5;
    padding: 2px 7px;
    border-radius: 6px;
    background: rgba(15, 15, 30, 0.85);
    border: 1px solid rgba(196, 154, 60, 0.4);
    color: var(--accent2);
    font-size: 8.5px;
    font-weight: 600;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
}

.card-wrapper.reversed.selected .card-tag {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
    transition-delay: calc(var(--flip) * 0.6);
}

@media (hover: hover) {
    .card-wrapper:not(.revealed):hover .card-back {
        box-shadow: 0 12px 32px rgba(196, 154, 60, 0.35);
        border-color: rgba(196, 154, 60, 0.65);
    }
    .card-wrapper:not(.revealed):hover .card-inner { transform: translateY(-6px); }
}

/* ── ПЕРЕМЕШАТЬ ── */
.btn-shuffle {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 16px;
    border: 1px solid rgba(255,255,255,0.13);
    border-radius: 11px;
    background: rgba(255,255,255,0.04);
    color: var(--text2);
    font-size: 12.5px;
    font-family: inherit;
    cursor: pointer;
    transition: opacity 0.25s ease, transform 0.15s ease, color 0.2s ease;
}

.btn-shuffle:active { transform: scale(0.95); }

.btn-shuffle:disabled {
    opacity: 0;
    pointer-events: none;
}

/* ── НИЖНЯЯ ПАНЕЛЬ ── */
.bottom-bar {
    position: fixed;
    z-index: 10;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 14px 16px;
    padding-bottom: max(18px, env(safe-area-inset-bottom));
    background: linear-gradient(to top, #0f0f1e 55%, rgba(15,15,30,0) 100%);
    display: flex;
    justify-content: center;
    pointer-events: none;
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.3s ease, transform 0.35s var(--ease-out);
}

.bottom-bar.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.btn-ready {
    position: relative;
    width: 100%;
    max-width: 360px;
    height: 52px;
    border: none;
    border-radius: 16px;
    background: linear-gradient(135deg, #7c3fbd 0%, #c49a3c 100%);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 24px rgba(196, 154, 60, 0.35);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    overflow: hidden;
}

.btn-ready::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 55%;
    height: 100%;
    background: linear-gradient(100deg, transparent, rgba(255,255,255,0.28), transparent);
    animation: sweep 2.6s ease-in-out infinite;
}

@keyframes sweep {
    0%        { left: -100%; }
    55%, 100% { left: 180%; }
}

.btn-ready:active { transform: scale(0.97); }

.btn-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: opacity 0.2s ease;
}

.btn-spinner {
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2.5px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    opacity: 0;
    animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.btn-ready.loading            { pointer-events: none; }
.btn-ready.loading .btn-label { opacity: 0; }
.btn-ready.loading .btn-spinner { opacity: 1; }
.btn-ready.loading::before    { animation: none; opacity: 0; }

/* ── Уважаем настройку "меньше движения" ── */
@media (prefers-reduced-motion: reduce) {
    .stars,
    .header-icon svg,
    .card-back::after,
    .btn-ready::before {
        animation: none;
    }
    .card-wrapper { animation-duration: 0.01ms; }
    .step.current .step-dot { animation: none; }
    :root { --flip: 260ms; }
}