/* ============================================================
   css/styles.css — Ultimate Collectibles Fair
   Design token system + all section styles
   ============================================================ */

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  --color-bg:        #0a0e2a;
  --color-surface:   #111638;
  --color-border:    #1e2a5e;
  --color-accent:    #1e90ff;
  --color-accent-dk: #1570cc;
  --color-gold:      #f5c518;
  --color-text:      #e8eaf6;
  --color-muted:     #8892b0;
  --color-success:   #4caf7d;
  --color-error:     #ff5252;

  --font-heading:    'Anton', Impact, 'Arial Narrow', sans-serif;
  --font-body:       system-ui, -apple-system, 'Segoe UI', sans-serif;

  --glow-blue:       0 0 18px rgba(30, 144, 255, 0.55);
  --glow-gold:       0 0 18px rgba(245, 197, 24, 0.5);

  --nav-height:      64px;

  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  6rem;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --transition: 0.2s ease;
}

/* ── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover, a:focus {
  text-decoration: underline;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  line-height: 1.1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--color-gold);
  text-shadow: var(--glow-gold);
  margin-bottom: var(--space-md);
}

section {
  padding: var(--space-xl) var(--space-md);
  max-width: 1200px;
  margin: 0 auto;
}

.section-wrapper {
  width: 100%;
  padding: var(--space-xl) var(--space-md);
  border-top: 1px solid var(--color-border);
}

.section-wrapper:nth-child(even) {
  background-color: var(--color-surface);
}

/* ── Navigation ─────────────────────────────────────────────── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(10, 14, 42, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  height: var(--nav-height);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  text-shadow: var(--glow-gold);
  text-decoration: none;
}

.nav-logo:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--space-md);
  align-items: center;
}

.nav-links a {
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}

.nav-hamburger svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
}

@media (max-width: 767px) {
  .nav-hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: rgba(10, 14, 42, 0.98);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    gap: 0;
    padding: var(--space-sm) 0;
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: var(--space-sm) var(--space-md);
    border-bottom: none;
    border-left: 3px solid transparent;
  }

  .nav-links a:hover,
  .nav-links a:focus {
    border-bottom: none;
    border-left-color: var(--color-accent);
    background-color: rgba(30, 144, 255, 0.08);
  }
}

/* ── Hero Section ───────────────────────────────────────────── */
.hero-wrapper {
  min-height: 100svh;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl) var(--space-md);
  background:
    radial-gradient(ellipse at 20% 50%, rgba(30, 144, 255, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(245, 197, 24, 0.08) 0%, transparent 50%),
    var(--color-bg);
  border-top: none;
}

.hero {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.hero-title {
  font-size: clamp(2.4rem, 8vw, 5.5rem);
  color: var(--color-gold);
  text-shadow: var(--glow-gold);
  margin-bottom: var(--space-sm);
  word-break: break-word;
}

.hero-tagline {
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  color: var(--color-muted);
  margin-bottom: var(--space-md);
  letter-spacing: 0.05em;
}

.hero-details {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-md);
}

.hero-detail-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 1rem;
  color: var(--color-text);
}

.hero-detail-item svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-accent);
  flex-shrink: 0;
}

.hero-admission {
  display: inline-block;
  background-color: var(--color-accent);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  letter-spacing: 0.08em;
  padding: 0.4rem 1.4rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--glow-blue);
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 0.75rem 2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background-color var(--transition), box-shadow var(--transition), transform var(--transition);
  text-decoration: none;
}

.btn:hover, .btn:focus {
  text-decoration: none;
  transform: translateY(-2px);
}

.btn-primary {
  background-color: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--color-accent-dk);
  box-shadow: var(--glow-blue);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.btn-outline:hover, .btn-outline:focus {
  background-color: rgba(245, 197, 24, 0.1);
  box-shadow: var(--glow-gold);
}

/* ── Categories Section ─────────────────────────────────────── */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-md);
}

.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-sm);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: default;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  text-align: center;
}

.category-card:hover,
.category-card:focus-within {
  box-shadow: var(--glow-blue);
  transform: scale(1.04);
  border-color: var(--color-accent);
}

.category-card img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  filter: invert(1) sepia(1) saturate(2) hue-rotate(185deg) brightness(1.2);
}

.category-card span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}

/* ── Schedule Section ───────────────────────────────────────── */
.schedule-timeline {
  list-style: none;
  position: relative;
  padding-left: 2rem;
  max-width: 600px;
}

.schedule-timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent), var(--color-gold));
  border-radius: 2px;
}

.schedule-entry {
  position: relative;
  display: flex;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  align-items: flex-start;
}

.schedule-entry::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 1.05rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid;
  background-color: var(--color-bg);
}

.schedule-entry--vendor::before {
  border-color: var(--color-accent);
  box-shadow: var(--glow-blue);
}

.schedule-entry--public::before {
  border-color: var(--color-gold);
  box-shadow: var(--glow-gold);
}

.schedule-entry--close::before {
  border-color: var(--color-muted);
}

.schedule-entry time {
  min-width: 90px;
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-accent);
  flex-shrink: 0;
}

.schedule-entry--public time {
  color: var(--color-gold);
}

.schedule-entry--close time {
  color: var(--color-muted);
}

.schedule-entry span {
  color: var(--color-text);
  font-size: 1rem;
}

/* ── Admissions Section ─────────────────────────────────────── */
.admissions-free {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--color-gold);
  text-shadow: var(--glow-gold);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
}

.admissions-note {
  font-size: 1.05rem;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  max-width: 620px;
}

.admissions-policy {
  font-size: 0.9rem;
  color: var(--color-muted);
  max-width: 620px;
}

/* ── Map / Directions Section ───────────────────────────────── */
.map-container {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-md);
  background-color: var(--color-surface);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.map-address {
  font-size: 1rem;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  line-height: 1.7;
}

.map-address strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--color-gold);
  margin-bottom: 0.2rem;
  text-transform: uppercase;
}

.map-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.map-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  text-decoration: none;
}

.map-link:hover, .map-link:focus {
  border-color: var(--color-accent);
  box-shadow: var(--glow-blue);
  text-decoration: none;
}

/* ── Inquiry Form Section ───────────────────────────────────── */
.form-toggle-group {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0;
}

.toggle-btn {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 0.6rem 1.4rem;
  min-height: 44px;
  min-width: 44px;
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
  margin-bottom: -2px;
}

.toggle-btn[aria-pressed="true"] {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.toggle-btn:hover {
  color: var(--color-text);
}

fieldset {
  border: none;
  padding: 0;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: var(--space-sm);
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.form-group label .required-mark {
  color: var(--color-error);
  margin-left: 2px;
}

.form-group input,
.form-group textarea,
.form-group select {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.65rem 0.9rem;
  min-height: 44px;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(30, 144, 255, 0.2);
}

.form-group textarea {
  min-height: 110px;
  resize: vertical;
}

.form-group input.field-error,
.form-group textarea.field-error {
  border-color: var(--color-error);
}

.field-error-msg {
  font-size: 0.8rem;
  color: var(--color-error);
  display: none;
}

.field-error-msg.visible {
  display: block;
}

/* Checkbox group */
.checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-xs);
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  font-size: 0.9rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--color-text);
  cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-height: unset;
  flex-shrink: 0;
  accent-color: var(--color-accent);
  cursor: pointer;
}

/* Submit button */
.submit-btn {
  width: 100%;
  margin-top: var(--space-sm);
}

.submit-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

/* Form result */
#form-result {
  min-height: 1.5rem;
  margin-top: var(--space-sm);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  padding: 0;
}

#form-result.success {
  color: var(--color-success);
  background-color: rgba(76, 175, 125, 0.12);
  padding: var(--space-sm);
  border: 1px solid rgba(76, 175, 125, 0.3);
}

#form-result.error {
  color: var(--color-error);
  background-color: rgba(255, 82, 82, 0.1);
  padding: var(--space-sm);
  border: 1px solid rgba(255, 82, 82, 0.3);
}

.form-disclaimer {
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-top: var(--space-sm);
}

.form-disclaimer a {
  color: var(--color-accent);
}

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: center;
}

.footer-copyright {
  font-size: 0.9rem;
  color: var(--color-muted);
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 0.4rem 1rem;
  color: var(--color-accent);
  font-weight: 600;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.footer-social a:hover,
.footer-social a:focus {
  border-color: var(--color-accent);
  box-shadow: var(--glow-blue);
  text-decoration: none;
}

.footer-webmaster {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.footer-webmaster a {
  color: var(--color-muted);
  text-decoration: underline;
}

.footer-webmaster a:hover,
.footer-webmaster a:focus {
  color: var(--color-text);
}

/* ── Responsive Adjustments ─────────────────────────────────── */
@media (max-width: 600px) {
  section {
    padding: var(--space-lg) var(--space-sm);
  }

  .section-wrapper {
    padding: var(--space-lg) var(--space-sm);
  }

  .hero-wrapper {
    padding: var(--space-lg) var(--space-sm);
    min-height: 100svh;
    align-items: flex-start;
    padding-top: calc(var(--nav-height) + var(--space-md));
  }

  .hero-details {
    flex-direction: column;
    align-items: center;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
  }

  .categories-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--space-sm);
  }

  .map-links {
    flex-direction: column;
  }

  .form-toggle-group {
    gap: 0;
  }

  .checkbox-group {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 320px) {
  .hero-title {
    font-size: 2rem;
  }

  .categories-grid {
    grid-template-columns: 1fr 1fr;
  }
}