/**
 * TicketBee — Premium event ticketing design system
 */
:root {
    --tu-primary: #06080f;
    --tu-secondary: #0e1220;
    --tu-surface: #151b2e;
    --tu-accent: #ffb800;
    --tu-accent-light: #ffc933;
    --tu-accent-dark: #e5a500;
    --tu-royal: #3b82f6;
    --tu-text: #e8eaef;
    --tu-text-bright: #ffffff;
    --tu-muted: #8b93a7;
    --tu-success: #22c55e;
    --tu-warning: #f59e0b;
    --tu-error: #ef4444;
    --tu-transition: 280ms cubic-bezier(0.4, 0, 0.2, 1);
    --tu-radius: 1rem;
    --tu-radius-lg: 1.25rem;
}

html {
    scroll-behavior: smooth;
}

body.ticket-ui {
    font-family: "DM Sans", system-ui, sans-serif;
    background-color: var(--tu-primary);
    background-image:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(255, 184, 0, 0.12), transparent),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(59, 130, 246, 0.08), transparent),
        radial-gradient(ellipse 50% 30% at 0% 100%, rgba(255, 184, 0, 0.06), transparent);
    background-attachment: fixed;
    color: var(--tu-text);
}

.font-display,
h1, h2, h3, .tu-section-title {
    font-family: "Sora", system-ui, sans-serif;
}

/* ── Surfaces ─────────────────────────────────────────────────────────────── */
.tu-glass {
    background: linear-gradient(145deg, rgba(21, 27, 46, 0.72), rgba(14, 18, 32, 0.55));
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: border-color var(--tu-transition), box-shadow var(--tu-transition), transform var(--tu-transition);
}

.tu-glass:hover {
    border-color: rgba(255, 184, 0, 0.28);
    box-shadow: 0 12px 40px -16px rgba(255, 184, 0, 0.2);
}

.tu-glass-strong {
    background: linear-gradient(160deg, rgba(21, 27, 46, 0.92), rgba(14, 18, 32, 0.88));
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.tu-card {
    background: var(--tu-surface);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: var(--tu-radius-lg);
}

.tu-shadow-soft {
    box-shadow: 0 16px 48px -20px rgba(0, 0, 0, 0.65);
}

.tu-shadow-glow {
    box-shadow: 0 0 40px -8px rgba(255, 184, 0, 0.35);
}

/* ── Header ───────────────────────────────────────────────────────────────── */
.tu-header {
    background: rgba(6, 8, 15, 0.82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: background-color var(--tu-transition), box-shadow var(--tu-transition);
}

.tu-header.is-scrolled {
    background: rgba(6, 8, 15, 0.96);
    box-shadow: 0 8px 32px -8px rgba(0, 0, 0, 0.5);
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.tu-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 0.875rem;
    background: linear-gradient(135deg, var(--tu-accent) 0%, var(--tu-accent-dark) 100%);
    color: var(--tu-primary);
    font-weight: 700;
    transition: transform var(--tu-transition), box-shadow var(--tu-transition), filter var(--tu-transition);
}

.tu-btn-primary:hover {
    filter: brightness(1.06);
    box-shadow: 0 8px 24px -6px rgba(255, 184, 0, 0.45);
    transform: translateY(-1px);
}

.tu-btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 0.875rem;
    border: 1px solid rgba(255, 184, 0, 0.35);
    background: rgba(255, 184, 0, 0.08);
    color: var(--tu-accent);
    font-weight: 600;
    transition: background var(--tu-transition), border-color var(--tu-transition);
}

.tu-btn-ghost:hover {
    background: rgba(255, 184, 0, 0.16);
    border-color: rgba(255, 184, 0, 0.55);
}

/* ── Section headers ────────────────────────────────────────────────────── */
.tu-section-label {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--tu-accent);
}

.tu-section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--tu-text-bright);
    line-height: 1.2;
}

@media (min-width: 640px) {
    .tu-section-title {
        font-size: 1.75rem;
    }
}

/* ── Hero ─────────────────────────────────────────────────────────────────── */
.tu-hero {
    position: relative;
    overflow: hidden;
}

.tu-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(255, 184, 0, 0.15), transparent 45%),
        radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.1), transparent 40%);
    pointer-events: none;
}

.tu-hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(to bottom, black 30%, transparent 100%);
    pointer-events: none;
}

/* ── Event card ───────────────────────────────────────────────────────────── */
.tu-event-card {
    border-radius: var(--tu-radius-lg);
    overflow: hidden;
    background: linear-gradient(160deg, rgba(21, 27, 46, 0.9), rgba(14, 18, 32, 0.95));
    border: 1px solid rgba(255, 255, 255, 0.07);
    transition: transform var(--tu-transition), box-shadow var(--tu-transition), border-color var(--tu-transition);
}

.tu-event-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 184, 0, 0.25);
    box-shadow: 0 20px 50px -20px rgba(255, 184, 0, 0.2);
}

.tu-event-card__image {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: linear-gradient(135deg, var(--tu-secondary), var(--tu-primary));
}

.tu-event-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.tu-event-card:hover .tu-event-card__image img {
    transform: scale(1.06);
}

.tu-badge {
    display: inline-flex;
    align-items: center;
    border-radius: 9999px;
    padding: 0.25rem 0.625rem;
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    background: rgba(6, 8, 15, 0.85);
    border: 1px solid rgba(255, 184, 0, 0.3);
    color: var(--tu-accent);
    backdrop-filter: blur(8px);
}

/* ── Bottom nav (floating dock) ───────────────────────────────────────────── */
.tu-bottom-nav {
    background: rgba(14, 18, 32, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 1.25rem;
    margin: 0 0.75rem 0.75rem;
    box-shadow: 0 12px 40px -8px rgba(0, 0, 0, 0.6);
}

.tu-bottom-nav__item.is-active {
    color: var(--tu-accent);
}

.tu-bottom-nav__item.is-active i {
    transform: scale(1.1);
}

/* ── Inputs ───────────────────────────────────────────────────────────────── */
.tu-input {
    width: 100%;
    border-radius: 0.875rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(6, 8, 15, 0.6);
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    color: var(--tu-text-bright);
    transition: border-color var(--tu-transition), box-shadow var(--tu-transition);
}

.tu-input:focus {
    outline: none;
    border-color: rgba(255, 184, 0, 0.5);
    box-shadow: 0 0 0 3px rgba(255, 184, 0, 0.12);
}

.tu-input::placeholder {
    color: var(--tu-muted);
}

/* ── Scrollbar ────────────────────────────────────────────────────────────── */
.ticket-ui ::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
.ticket-ui ::-webkit-scrollbar-track {
    background: var(--tu-primary);
}
.ticket-ui ::-webkit-scrollbar-thumb {
    background: rgba(255, 184, 0, 0.25);
    border-radius: 9999px;
}
.ticket-ui ::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 184, 0, 0.4);
}

.scrollbar-hide {
    -ms-overflow-style: none;
    scrollbar-width: none;
}
.scrollbar-hide::-webkit-scrollbar {
    display: none;
}

/* ── Skeleton ─────────────────────────────────────────────────────────────── */
.tu-skeleton {
    background: linear-gradient(
        90deg,
        rgba(255, 184, 0, 0.06) 0%,
        rgba(255, 184, 0, 0.12) 50%,
        rgba(255, 184, 0, 0.06) 100%
    );
    background-size: 200% 100%;
    animation: tu-shimmer 1.4s ease infinite;
    border-radius: 0.75rem;
}

@keyframes tu-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

@keyframes tu-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.animate-pulse {
    animation: tu-pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ── Bottom sheet ─────────────────────────────────────────────────────────── */
.tu-sheet-overlay {
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--tu-transition);
}
.tu-sheet-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}
.tu-sheet-panel {
    transform: translateY(100%);
    transition: transform var(--tu-transition);
}
.tu-sheet-overlay.is-open .tu-sheet-panel {
    transform: translateY(0);
}

/* ── Focus / a11y ───────────────────────────────────────────────────────── */
.ticket-ui :focus-visible {
    outline: 2px solid var(--tu-accent);
    outline-offset: 2px;
}

.tu-safe-bottom {
    padding-bottom: env(safe-area-inset-bottom, 0);
}

.tu-accent-glow {
    box-shadow: 0 0 24px rgba(255, 184, 0, 0.35);
}

.tu-gradient-text {
    background: linear-gradient(135deg, var(--tu-accent) 0%, #fff 120%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.sr-only:focus,
.sr-only:active {
    position: static;
    width: auto;
    height: auto;
    padding: inherit;
    margin: inherit;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

body.keyboard-nav *:focus {
    outline: 3px solid var(--tu-accent);
    outline-offset: 2px;
    border-radius: 4px;
}

.skip-to-main { transition: all 0.2s ease; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

@media (prefers-contrast: high) {
    .tu-glass, .tu-glass-strong {
        border-width: 2px;
        border-color: var(--tu-accent);
    }
}

:focus:not(:focus-visible) { outline: none; }
:focus-visible {
    outline: 3px solid var(--tu-accent);
    outline-offset: 2px;
}

[role="button"], [onclick] { cursor: pointer; }

[role="status"], [role="alert"] {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

img, video {
    max-width: 100%;
    height: auto;
}

img[loading="lazy"] {
    background: linear-gradient(135deg, rgba(14, 18, 32, 0.8) 0%, rgba(255, 184, 0, 0.05) 100%);
}

.tu-glass, .tu-glass-strong, .tu-event-card {
    contain: layout style paint;
}

@media (max-width: 640px) {
    .tu-touch-target {
        min-height: 44px;
        min-width: 44px;
    }
}