/* ==========================================================================
   Tech Taco Tuesdays — site.css
   Neon taqueria meets terminal. Dark by default.

   Every color on the site is a custom property defined in :root below.
   Nothing else in this file uses a raw hex value — derived tints and
   glows are built with color-mix() on the tokens.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */

:root {
  /* Color — the taqueria at night */
  --color-bg: #14100E;            /* charred / comal black */
  --color-surface: #1F1815;       /* cast iron */
  --color-ink: #F6EFE2;           /* horchata — primary text */
  --color-muted: #A69684;         /* masa dust — secondary text */
  --color-primary: #E4482A;       /* salsa roja — buttons, fills */
  --color-primary-text: #F0603F;  /* salsa, brightened to pass AA as link text */
  --color-accent: #A8C63C;        /* tomatillo — hover, focus ring */
  --color-warm: #F2B33D;          /* masa yellow — accents, dividers, badges */
  --color-danger: #C2301B;        /* form-error borders/icons only */
  --color-danger-text: #F07B60;   /* form-error text, AA on dark */

  /* Type */
  --font-display: "Big Shoulders Display", "Arial Narrow", "Helvetica Neue", sans-serif;
  --font-body: "Karla", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* Space scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;

  /* Shape, measure, depth */
  --radius: 6px;
  --maxw-content: 42rem;
  --maxw-wide: 68rem;
  --shadow-1: 0 2px 16px rgba(0, 0, 0, 0.45);
  --border-hairline: 1px solid rgba(246, 239, 226, 0.14);
}

/* --------------------------------------------------------------------------
   2. Reset & base
   -------------------------------------------------------------------------- */

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

html {
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 1.0625rem; /* 17px */
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary-text);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--color-accent);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

::selection {
  background: var(--color-warm);
  color: var(--color-bg);
}

/* Headlines — Big Shoulders, used with restraint */
h1,
h2 {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1.05;
  margin: 0 0 var(--space-4);
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.75rem, 9vw, 5.5rem);
}

h2 {
  font-size: clamp(1.75rem, 4.5vw, 2.5rem);
}

h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.125rem;
  margin: 0 0 var(--space-2);
}

p {
  margin: 0 0 var(--space-4);
  max-width: var(--maxw-content);
}

.muted {
  color: var(--color-muted);
}

/* Mono utility — dates, times, event numbers */
.mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
  letter-spacing: 0.02em;
}

/* --------------------------------------------------------------------------
   3. Layout primitives
   -------------------------------------------------------------------------- */

.wrap {
  max-width: var(--maxw-wide);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section {
  padding-block: var(--space-7);
}

/* Eyebrow: masa-yellow section label with a hairline rule after it.
   The rule encodes "new section of the menu board", chalk-line style. */
.eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: 0 0 var(--space-5);
  color: var(--color-warm);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.eyebrow::after {
  content: "";
  flex: 1;
  border-top: 1px dashed color-mix(in srgb, var(--color-warm) 45%, transparent);
}

/* --------------------------------------------------------------------------
   4. Header & nav
   -------------------------------------------------------------------------- */

.site-header {
  border-bottom: var(--border-hairline);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3) var(--space-5);
  padding-block: var(--space-4);
}

.brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.375rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-ink);
  text-decoration: none;
}

.brand .brand-taco {
  margin-right: var(--space-2);
}

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 0.9375rem;
}

.site-nav a:hover {
  color: var(--color-accent);
}

.site-nav a[aria-current="page"] {
  color: var(--color-ink);
  border-bottom: 2px solid var(--color-warm);
}

/* --------------------------------------------------------------------------
   5. Hero
   -------------------------------------------------------------------------- */

.hero {
  padding-block: var(--space-8) var(--space-7);
}

.hero .tagline {
  color: var(--color-muted);
  font-size: 1.25rem;
  margin-top: calc(-1 * var(--space-3));
}

/* --------------------------------------------------------------------------
   6. Signature element — the NEXT TACO TUESDAY board
   A terminal window whose output is set like a taqueria menu board.
   -------------------------------------------------------------------------- */

.board {
  max-width: 34rem;
  margin-block: var(--space-6);
  background: var(--color-surface);
  border: 1px solid color-mix(in srgb, var(--color-primary) 55%, transparent);
  border-radius: var(--radius);
  box-shadow:
    var(--shadow-1),
    0 0 28px color-mix(in srgb, var(--color-primary) 22%, transparent);
}

.board-titlebar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-bottom: var(--border-hairline);
}

.board-titlebar .dot {
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
}

.dot-close  { background: var(--color-primary); }
.dot-min    { background: var(--color-warm); }
.dot-max    { background: var(--color-accent); }

.board-titlebar .board-title {
  margin-left: auto;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.board-body {
  padding: var(--space-4) var(--space-5) var(--space-5);
  font-family: var(--font-mono);
  /* Reserve height so the JS swap causes zero layout shift */
  min-height: 8.5rem;
}

.board-prompt {
  color: var(--color-muted);
  font-size: 0.875rem;
  margin: 0 0 var(--space-3);
}

.board-prompt .prompt-char {
  color: var(--color-accent);
}

.board-date {
  color: var(--color-warm);
  font-size: clamp(1.375rem, 4.5vw, 1.875rem);
  font-weight: 600;
  letter-spacing: 0.03em;
  margin: 0 0 var(--space-2);
}

.board-countdown {
  display: flex;
  gap: var(--space-4);
  color: var(--color-ink);
  font-size: 1rem;
  margin: 0;
}

.board-countdown .num {
  font-size: 1.375rem;
  font-weight: 600;
}

.board-countdown .unit {
  color: var(--color-muted);
  font-size: 0.75rem;
  display: block;
}

.board-fallback {
  color: var(--color-ink);
  font-size: 1rem;
  margin: 0;
}

/* "It's today" state, set by JS */
.board.is-today .board-date {
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   7. Buttons & CTA
   -------------------------------------------------------------------------- */

.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-5);
  background: var(--color-primary);
  color: var(--color-bg);
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius);
  border: none;
}

.btn:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

/* --------------------------------------------------------------------------
   8. "What a Tuesday looks like" — three steps with mono times
   -------------------------------------------------------------------------- */

.tuesday-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: var(--space-5);
}

.tuesday-steps li {
  background: var(--color-surface);
  border: var(--border-hairline);
  border-radius: var(--radius);
  padding: var(--space-5);
}

.tuesday-steps .step-time {
  font-family: var(--font-mono);
  color: var(--color-warm);
  font-size: 0.875rem;
  display: block;
  margin-bottom: var(--space-2);
}

/* --------------------------------------------------------------------------
   9. Menu list — dotted-leader rows, taqueria price-board style.
   Topic on the left, date where the price would go.
   -------------------------------------------------------------------------- */

.menu-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: var(--maxw-content);
}

.menu-list li {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding-block: var(--space-3);
}

.menu-list .leader {
  flex: 1;
  min-width: var(--space-6);
  border-bottom: 2px dotted color-mix(in srgb, var(--color-muted) 55%, transparent);
  transform: translateY(-0.25em);
}

.menu-list .menu-date {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-muted);
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   10. Schedule page — event cards & past events
   -------------------------------------------------------------------------- */

.event-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
}

.event-card {
  background: var(--color-surface);
  border: var(--border-hairline);
  border-left: 3px solid var(--color-warm);
  border-radius: var(--radius);
  padding: var(--space-5);
}

.event-card .event-date {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-warm);
  display: block;
  margin-bottom: var(--space-1);
}

.event-card .event-meta {
  color: var(--color-muted);
  font-size: 0.9375rem;
  margin: 0;
}

details.past-events {
  max-width: var(--maxw-content);
  margin-top: var(--space-6);
  border-top: var(--border-hairline);
  padding-top: var(--space-4);
}

details.past-events summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--color-muted);
}

details.past-events summary:hover {
  color: var(--color-accent);
}

details.past-events[open] summary {
  margin-bottom: var(--space-4);
}

/* --------------------------------------------------------------------------
   11. Sponsors page — tier cards
   -------------------------------------------------------------------------- */

.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--space-5);
}

.tier-card {
  background: var(--color-surface);
  border: var(--border-hairline);
  border-radius: var(--radius);
  padding: var(--space-5);
}

.tier-card .tier-price {
  font-family: var(--font-mono);
  color: var(--color-warm);
  font-size: 0.9375rem;
}

.tier-card ul {
  padding-left: var(--space-5);
  margin: var(--space-3) 0 0;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   12. Prose pages (about, code of conduct)
   -------------------------------------------------------------------------- */

.prose {
  max-width: var(--maxw-content);
}

.prose ul,
.prose ol {
  padding-left: var(--space-5);
  margin: 0 0 var(--space-4);
}

.prose li {
  margin-bottom: var(--space-2);
}

/* Visible placeholder for facts still to fill in */
.todo {
  background: color-mix(in srgb, var(--color-warm) 18%, transparent);
  color: var(--color-warm);
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 0 var(--space-1);
  border-radius: 3px;
}

/* --------------------------------------------------------------------------
   13. Footer
   -------------------------------------------------------------------------- */

.site-footer {
  margin-top: var(--space-8);
  border-top: var(--border-hairline);
  padding-block: var(--space-6);
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-7);
  justify-content: space-between;
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
}

.site-footer a {
  color: var(--color-muted);
}

.site-footer a:hover {
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   14. 404
   -------------------------------------------------------------------------- */

.page-404 {
  min-height: 60vh;
  display: grid;
  place-content: center;
  text-align: center;
  padding-block: var(--space-8);
}

/* --------------------------------------------------------------------------
   15. Motion
   -------------------------------------------------------------------------- */

@keyframes board-blink {
  50% { opacity: 0; }
}

.board-prompt .cursor {
  display: inline-block;
  width: 0.55em;
  height: 1em;
  vertical-align: text-bottom;
  background: var(--color-accent);
  animation: board-blink 1.1s steps(1) infinite;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}