* {
    -webkit-tap-highlight-color: transparent;
}

html,
body {
    background: #030304;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
}

/* ==================== FX CANVAS ==================== */
.fx-canvas {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 40;
}

/* ==================== GATE ATMOSPHERE ==================== */
.gate-atmosphere {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(600px circle at 50% 18%, rgba(99, 102, 241, 0.10), transparent 60%),
        radial-gradient(500px circle at 82% 85%, rgba(34, 211, 238, 0.06), transparent 60%);
}

.gate-grid {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
    background-size: 46px 46px;
    -webkit-mask-image: radial-gradient(circle at 50% 42%, #000 0%, transparent 72%);
    mask-image: radial-gradient(circle at 50% 42%, #000 0%, transparent 72%);
}

.gate-vignette {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(ellipse at center, transparent 25%, rgba(0, 0, 0, 0.9) 100%);
}

@keyframes rise {
    from {
        opacity: 0;
        transform: translateY(18px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.gate-inner {
    animation: rise 0.9s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes pulseRing {
    0% {
        transform: scale(0.85);
        opacity: 0.7;
    }

    70% {
        transform: scale(1.55);
        opacity: 0;
    }

    100% {
        transform: scale(1.55);
        opacity: 0;
    }
}

.pulse-ring::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 9999px;
    border: 1px solid rgba(129, 140, 248, 0.35);
    animation: pulseRing 3.2s ease-out infinite;
}

@keyframes shake {

    10%,
    90% {
        transform: translateX(-1px);
    }

    20%,
    80% {
        transform: translateX(2px);
    }

    30%,
    50%,
    70% {
        transform: translateX(-4px);
    }

    40%,
    60% {
        transform: translateX(4px);
    }
}

.shake {
    animation: shake 0.45s cubic-bezier(.36, .07, .19, .97) both;
}

@keyframes quoteIn {
    from {
        opacity: 0;
        transform: translateY(4px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.quote-in {
    animation: quoteIn 0.5s ease both;
}

/* ==================== GATE FORM ==================== */
.field {
    position: relative;
}

.field input {
    width: 100%;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 13px 16px;
    font-size: 14px;
    color: #e2e8f0;
    outline: none;
    letter-spacing: 0.02em;
    transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
}

.field.has-toggle input {
    padding-right: 44px;
}

.field input::placeholder {
    color: #3f3f46;
}

.field input:focus {
    border-color: rgba(129, 140, 248, 0.45);
    background: rgba(99, 102, 241, 0.04);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.08), 0 0 24px -8px rgba(99, 102, 241, 0.5);
}

.field-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    padding: 4px;
    border-radius: 6px;
    color: #475569;
    transition: color 0.2s;
}

.field-toggle:hover {
    color: #94a3b8;
}

.gate-submit {
    width: 100%;
    padding: 13px 16px;
    border-radius: 12px;
    border: 1px solid rgba(129, 140, 248, 0.28);
    background: rgba(99, 102, 241, 0.07);
    color: #c7d2fe;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    transition: background 0.25s, border-color 0.25s, box-shadow 0.25s, color 0.25s;
}

.gate-submit:hover {
    background: rgba(99, 102, 241, 0.16);
    border-color: rgba(129, 140, 248, 0.55);
    color: #e0e7ff;
    box-shadow: 0 0 30px -8px rgba(99, 102, 241, 0.65);
}

.gate-submit:disabled {
    cursor: wait;
    opacity: 0.7;
}

.gate-exit {
    opacity: 0;
    transform: scale(1.03);
    filter: blur(8px);
    transition: opacity 0.6s ease, transform 0.6s ease, filter 0.6s ease;
}

/* ==================== VAULT ==================== */
#vault {
    display: none;
    flex-direction: column;
    min-height: 100svh;
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

#vault.is-open {
    display: flex;
}

#vault.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== CARD SHELL + EDGE GLOW ==================== */
@property --glow-angle {
    syntax: '<angle>';
    inherits: false;
    initial-value: 0deg;
}

.mystery-card {
    --accent-rgb: 129, 140, 248;
    position: relative;
    isolation: isolate;
    border-radius: 26px;
    transform-style: preserve-3d;
    will-change: transform, opacity, filter;
    user-select: none;
    -webkit-user-select: none;
    touch-action: pan-y;
    cursor: grab;
}

.mystery-card.dragging {
    cursor: grabbing;
}

.mystery-card::before,
.mystery-card::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    pointer-events: none;
    background: conic-gradient(from var(--glow-angle),
            transparent 0deg,
            rgba(var(--accent-rgb), 0.55) 42deg,
            transparent 108deg,
            transparent 195deg,
            rgba(var(--accent-rgb), 0.35) 245deg,
            transparent 318deg);
    animation: glowSpin 7s linear infinite;
    z-index: 0;
}

.mystery-card::after {
    inset: -6px;
    filter: blur(16px);
    opacity: 0.3;
    z-index: -1;
    transition: opacity 0.35s ease;
}

.mystery-card:hover::after {
    opacity: 0.5;
}

.mystery-card:hover .card-surface {
    border-color: rgba(255, 255, 255, 0.16);
}

@keyframes glowSpin {
    to {
        --glow-angle: 360deg;
    }
}

.mystery-card.flash::after {
    animation: glowFlash 0.7s ease-out;
}

@keyframes glowFlash {
    0% {
        opacity: 1;
        filter: blur(10px);
    }

    100% {
        opacity: 0.3;
        filter: blur(16px);
    }
}

/* ==================== CARD SURFACE (3D) ==================== */
.card-surface {
    position: relative;
    z-index: 1;
    border-radius: inherit;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: linear-gradient(160deg, rgba(21, 21, 27, 0.97), rgba(6, 6, 9, 0.99));
    overflow: hidden;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.06),
        inset 0 -1px 0 rgba(0, 0, 0, 0.6),
        0 26px 70px -34px rgba(0, 0, 0, 0.98);
}

.card-tilt {
    position: relative;
    z-index: 1;
    transform-style: preserve-3d;
    transition: transform 0.25s ease-out;
    will-change: transform;
}

.mystery-card.dragging .card-tilt {
    transition: none;
}

.card-tilt h2,
.card-tilt .icon-box {
    transform: translateZ(18px);
}

.card-aura {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(420px circle at 50% -5%, rgba(var(--accent-rgb), 0.16), transparent 65%);
}

.icon-box {
    color: rgb(var(--accent-rgb));
    background: rgba(var(--accent-rgb), 0.08);
    border-color: rgba(var(--accent-rgb), 0.22);
}

.tag {
    color: rgb(var(--accent-rgb));
    background: rgba(var(--accent-rgb), 0.07);
    border-color: rgba(var(--accent-rgb), 0.22);
}

.card-line {
    background: linear-gradient(90deg, transparent, rgba(var(--accent-rgb), 0.45), transparent);
}

.open-btn {
    color: rgb(var(--accent-rgb));
    border-color: rgba(var(--accent-rgb), 0.3);
    background: rgba(var(--accent-rgb), 0.07);
}

.open-btn:hover {
    background: rgba(var(--accent-rgb), 0.16);
    border-color: rgba(var(--accent-rgb), 0.55);
    box-shadow: 0 0 24px -6px rgba(var(--accent-rgb), 0.5);
}

/* ==================== CINEMATIC SHUFFLE ==================== */
.mystery-card.charging {
    animation: charge 0.42s ease-in-out both;
}

@keyframes charge {
    0% {
        transform: scale(1);
    }

    55% {
        transform: scale(0.962);
    }

    100% {
        transform: scale(0.985);
    }
}

.shatter-layer {
    position: absolute;
    inset: 0;
    z-index: 6;
    pointer-events: none;
    perspective: 1000px;
}

.shatter-tile {
    position: absolute;
    inset: 0;
    transform-style: preserve-3d;
    will-change: transform, opacity, filter;
}

.shatter-tile > .card-surface {
    width: 100%;
    height: 100%;
}

/* Shuffle HUD */
.shuffle-status {
    position: absolute;
    left: 0;
    right: 0;
    top: -30px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 10px;
    letter-spacing: 0.34em;
    text-transform: uppercase;
    color: rgba(148, 163, 184, 0.65);
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
    white-space: nowrap;
}

.shuffle-status.active {
    opacity: 1;
    transform: translateY(0);
}

.shuffle-status-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #a5b4fc;
    box-shadow: 0 0 10px #818cf8;
    animation: statusBlink 0.7s steps(2, end) infinite;
}

@keyframes statusBlink {
    50% {
        opacity: 0.2;
    }
}

/* ==================== SHUFFLE BUTTON ==================== */
#shuffleBtn.busy {
    cursor: wait;
}

#shuffleBtn.busy i {
    animation: spin 0.9s linear infinite;
}

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

/* ==================== REDUCED MOTION ==================== */
@media (prefers-reduced-motion: reduce) {

    .mystery-card::before,
    .mystery-card::after,
    .pulse-ring::after,
    .shuffle-status-dot {
        animation: none;
    }
}