/* ============================================================
   Tixlinx design system
   Palette:  --bg #0E1220 (ink navy) / --surface #161B2E / --surface-2 #1D2340
             --accent #F5B942 (stub gold) / --accent-2 #1FB8A6 (stamp teal)
             --text #EDEFF7 / --muted #8890A6 / --danger #FF6B6B
   Type:     display = 'Poppins' (bold, clear headings)
             body    = 'Inter'
             mono    = 'IBM Plex Mono' (counters, transaction IDs)
   Signature: every card is a literal ticket stub - dashed perforation +
             semi-circle notches cut from the divider, echoing a torn
             admission ticket.
   ============================================================ */

:root {
  --bg: #0e1220;
  --bg-elevated: #0b0e19;
  --surface: #161b2e;
  --surface-2: #1d2340;
  --border: rgba(237, 239, 247, 0.08);
  --accent: #f5b942;
  --accent-text: var(--accent);
  --accent-dim: #b8862c;
  --accent-2: #1fb8a6;
  --accent-3: #a78bfa;
  --accent-4: #fb7185;
  --text: #edeff7;
  --muted: #9aa2ba;
  --danger: #ff6b6b;
  --success: #6fd99a;
  --nav-bg: rgba(14, 18, 32, 0.85);
  --surface-glass: rgba(22, 27, 46, 0.62);
  --surface-2-glass: rgba(29, 35, 64, 0.55);
  --border-glass: rgba(237, 239, 247, 0.14);
  --grid-line: rgba(237, 239, 247, 0.035);
  --flash-error-bg: rgba(255, 107, 107, 0.1);
  --flash-error-border: rgba(255, 107, 107, 0.35);
  --flash-error-text: #ffb4b4;
  --flash-success-bg: rgba(111, 217, 154, 0.1);
  --flash-success-border: rgba(111, 217, 154, 0.35);
  --flash-success-text: var(--success);
  --font-display: "Poppins", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

:root[data-theme="light"] {
  --bg: #f6f5f1;
  --bg-elevated: #ffffff;
  --surface: #ffffff;
  --surface-2: #eef0f7;
  --border: rgba(14, 18, 32, 0.1);
  --accent: #f5b942;
  --accent-text: #8a5a12;
  --accent-dim: #b8862c;
  --accent-2: #0b6f63;
  --accent-3: #7c5cf0;
  --accent-4: #e11d5e;
  --text: #14161f;
  --muted: #40465c;
  --danger: #c62f2f;
  --success: #1f8a52;
  --nav-bg: rgba(246, 245, 241, 0.85);
  --surface-glass: rgba(255, 255, 255, 0.72);
  --surface-2-glass: rgba(238, 240, 247, 0.65);
  --border-glass: rgba(20, 22, 31, 0.12);
  --grid-line: rgba(14, 18, 32, 0.05);
  --flash-error-bg: rgba(198, 47, 47, 0.08);
  --flash-error-border: rgba(198, 47, 47, 0.3);
  --flash-error-text: #a02323;
  --flash-success-bg: rgba(31, 138, 82, 0.08);
  --flash-success-border: rgba(31, 138, 82, 0.3);
  --flash-success-text: var(--success);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f6f5f1;
    --bg-elevated: #ffffff;
    --surface: #ffffff;
    --surface-2: #eef0f7;
    --border: rgba(14, 18, 32, 0.1);
    --accent: #f5b942;
    --accent-text: #8a5a12;
    --accent-dim: #b8862c;
    --accent-2: #0b6f63;
    --accent-3: #7c5cf0;
    --accent-4: #e11d5e;
    --text: #14161f;
    --muted: #40465c;
    --danger: #c62f2f;
    --success: #1f8a52;
    --nav-bg: rgba(246, 245, 241, 0.85);
    --surface-glass: rgba(255, 255, 255, 0.72);
    --surface-2-glass: rgba(238, 240, 247, 0.65);
    --border-glass: rgba(20, 22, 31, 0.12);
    --grid-line: rgba(14, 18, 32, 0.05);
    --flash-error-bg: rgba(198, 47, 47, 0.08);
    --flash-error-border: rgba(198, 47, 47, 0.3);
    --flash-error-text: #a02323;
    --flash-success-bg: rgba(31, 138, 82, 0.08);
    --flash-success-border: rgba(31, 138, 82, 0.3);
    --flash-success-text: var(--success);
  }
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

:root[data-theme="light"] {
  color-scheme: light;
}

@media (prefers-color-scheme: light) {
  html:not([data-theme="dark"]) {
    color-scheme: light;
  }
}

html,
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100%;
  transition: background 0.2s ease, color 0.2s ease;
}

body {
  background-image:
    radial-gradient(circle at 12% 8%, rgba(31, 184, 166, 0.09), transparent 40%),
    radial-gradient(circle at 88% 92%, rgba(59, 130, 246, 0.1), transparent 45%),
    radial-gradient(circle at 85% 15%, rgba(167, 139, 250, 0.08), transparent 42%),
    radial-gradient(circle at 8% 88%, rgba(239, 68, 68, 0.08), transparent 42%);
  background-attachment: fixed;
}

::selection {
  background: var(--accent);
  color: #14161f;
}

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, .display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.mono {
  font-family: var(--font-mono);
}

.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  color: var(--accent-2);
}

/* ---------- Nav ---------- */
.nav {
  border-bottom: 1px solid var(--border);
  background: var(--nav-bg);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  position: sticky;
  top: 0;
  z-index: 40;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  letter-spacing: 0.02em;
}

/* ---------- Theme toggle ---------- */
.theme-toggle svg {
  width: 1.1rem;
  height: 1.1rem;
}

/* Button shows the mode a click will switch TO: sun+"Light" while dark
   is active, moon+"Dark" once light is active. */
.theme-toggle .icon-moon,
.theme-toggle .theme-toggle-label-dark {
  display: none;
}

:root[data-theme="light"] .theme-toggle .icon-sun,
:root[data-theme="light"] .theme-toggle .theme-toggle-label-light {
  display: none;
}

:root[data-theme="light"] .theme-toggle .icon-moon {
  display: inline-block;
}

:root[data-theme="light"] .theme-toggle .theme-toggle-label-dark {
  display: inline;
}

/* ---------- Mobile nav ---------- */
.nav-hamburger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.nav-hamburger:hover {
  border-color: var(--accent-2);
  color: var(--accent-2);
}

.nav-hamburger svg {
  width: 1.3rem;
  height: 1.3rem;
}

.nav-mobile-menu {
  border-top: 1px solid var(--border);
  background: var(--nav-bg);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
}

.nav-logo .dot {
  color: var(--accent-text);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.7rem 1.5rem;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: #2563eb;
  color: #ffffff;
  box-shadow: 0 8px 24px -8px rgba(37, 99, 235, 0.55);
}

.btn-primary:hover {
  background: #1d4ed8;
  box-shadow: 0 10px 28px -6px rgba(37, 99, 235, 0.7);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--accent-2);
  color: var(--accent-2);
}

.btn-block {
  width: 100%;
}

/* ---------- Form fields ---------- */
.field label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
  letter-spacing: 0.02em;
}

.field input {
  width: 100%;
  background: var(--surface-2-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-glass);
  color: var(--text);
  padding: 0.75rem 0.9rem;
  border-radius: 9px;
  font-size: 0.95rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field input:focus {
  outline: none;
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(31, 184, 166, 0.18);
}

.field-error {
  color: var(--danger);
  font-size: 0.78rem;
  margin-top: 0.35rem;
}

/* ---------- Flash messages ---------- */
.flash {
  border-radius: 10px;
  padding: 0.8rem 1rem;
  font-size: 0.9rem;
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.flash-error {
  background: var(--flash-error-bg);
  border-color: var(--flash-error-border);
  color: var(--flash-error-text);
}

.flash-success {
  background: var(--flash-success-bg);
  border-color: var(--flash-success-border);
  color: var(--flash-success-text);
}

/* ============================================================
   Ticket card - the signature element.
   A card with a dashed perforation and two semicircle notches
   cut out of the edge, like a torn admission stub.
   ============================================================ */
.ticket {
  position: relative;
  display: flex;
  background: linear-gradient(155deg, var(--surface-glass), var(--surface-2-glass));
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.75);
}

.ticket::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent-4));
}

.ticket-body {
  flex: 1;
  padding: 1.6rem 1.7rem;
  min-width: 0;
}

.ticket-stub {
  width: 108px;
  flex-shrink: 0;
  position: relative;
  border-left: 2px dashed rgba(237, 239, 247, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.02);
}

.ticket-stub::before,
.ticket-stub::after {
  content: "";
  position: absolute;
  left: -11px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border);
}

.ticket-stub::before {
  top: -11px;
}

.ticket-stub::after {
  bottom: -11px;
}

.ticket-stub-label {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 0.82rem;
  color: var(--accent-text);
  white-space: nowrap;
}

/* Simple flat variant without the stub, for smaller list rows */
.ticket-row {
  background: var(--surface-glass);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 0.9rem 1.1rem;
}

/* ---------- Credit balance counter ---------- */
.credit-counter {
  font-family: var(--font-mono);
  font-size: 3.2rem;
  font-weight: 600;
  line-height: 1;
  color: var(--text);
  letter-spacing: -0.02em;
}

.credit-counter .unit {
  font-size: 1.1rem;
  color: var(--muted);
  margin-left: 0.35rem;
}

/* Barcode-style decorative stripe */
.barcode {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 26px;
  opacity: 0.55;
}

.barcode span {
  background: var(--accent-2);
  width: 3px;
  display: inline-block;
}

/* ---------- Package selection cards ---------- */
.package-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease;
  border: 1px solid var(--border-glass);
}

.package-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--accent);
}

.package-card:nth-child(2)::before {
  background: var(--accent-2);
}

.package-card:nth-child(3)::before {
  background: var(--accent-3);
}

.package-card:nth-child(4)::before {
  background: var(--accent-4);
}

.package-card:hover {
  transform: translateY(-3px);
}

.package-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.package-card:nth-child(2).selected {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 1px var(--accent-2);
}

.package-card:nth-child(3).selected {
  border-color: var(--accent-3);
  box-shadow: 0 0 0 1px var(--accent-3);
}

.package-card:nth-child(4).selected {
  border-color: var(--accent-4);
  box-shadow: 0 0 0 1px var(--accent-4);
}

/* ---------- Animations ---------- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-up {
  animation: fadeUp 0.5s ease both;
}

@media (prefers-reduced-motion: reduce) {
  .fade-up {
    animation: none;
  }
}

/* ---------- Landing hero ---------- */
.hero-grid {
  background-image: linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 42px 42px;
}

@media (max-width: 640px) {
  .ticket {
    flex-direction: column;
  }
  .ticket-stub {
    width: 100%;
    height: 56px;
    border-left: none;
    border-top: 2px dashed rgba(237, 239, 247, 0.18);
  }
  .ticket-stub::before,
  .ticket-stub::after {
    top: -11px;
    left: auto;
  }
  .ticket-stub::before {
    left: -11px;
  }
  .ticket-stub::after {
    right: -11px;
  }
  .ticket-stub-label {
    writing-mode: horizontal-tb;
    transform: none;
  }
  .credit-counter {
    font-size: 2.4rem;
  }
}