/* ===== Design tokens ===== */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem;
  --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;

  --radius-sm: 0.375rem; --radius-md: 0.5rem; --radius-lg: 0.75rem; --radius-xl: 1.25rem; --radius-full: 9999px;
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --font-display: 'Erode', Georgia, serif;
  --font-body: 'General Sans', 'Helvetica Neue', sans-serif;

  --content-narrow: 640px;
  --content-default: 980px;
  --content-wide: 1200px;
}

/* Warm whiskey palette — light mode */
:root, [data-theme='light'] {
  --color-bg: #f6efe4;
  --color-surface: #fbf6ec;
  --color-surface-2: #ffffff;
  --color-surface-offset: #efe4d2;
  --color-divider: #e0d2b8;
  --color-border: #d3c1a0;

  --color-text: #2a1d12;
  --color-text-muted: #6f5c46;
  --color-text-faint: #a5906f;
  --color-text-inverse: #fbf6ec;

  --color-primary: #a8541e;
  --color-primary-hover: #8a4318;
  --color-primary-active: #6f3512;
  --color-primary-highlight: #ecd3b8;

  --color-error: #a12c2c;
  --color-error-highlight: #e7cfcf;
  --color-success: #3f6a2c;

  --shadow-sm: 0 1px 2px rgba(42, 29, 18, 0.08);
  --shadow-md: 0 8px 24px rgba(42, 29, 18, 0.12);
  --shadow-lg: 0 20px 48px rgba(42, 29, 18, 0.18);
}

/* Warm whiskey palette — dark mode (primary identity) */
[data-theme='dark'] {
  --color-bg: #16110c;
  --color-surface: #1c1610;
  --color-surface-2: #221b14;
  --color-surface-offset: #241d15;
  --color-divider: #33291b;
  --color-border: #3d3120;

  --color-text: #f1e6d3;
  --color-text-muted: #b8a486;
  --color-text-faint: #7c6b52;
  --color-text-inverse: #16110c;

  --color-primary: #d68a3c;
  --color-primary-hover: #e6a054;
  --color-primary-active: #f0b06a;
  --color-primary-highlight: #3a2c18;

  --color-error: #d6704c;
  --color-error-highlight: #3a2419;
  --color-success: #8fae5d;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --color-bg: #16110c;
    --color-surface: #1c1610;
    --color-surface-2: #221b14;
    --color-surface-offset: #241d15;
    --color-divider: #33291b;
    --color-border: #3d3120;
    --color-text: #f1e6d3;
    --color-text-muted: #b8a486;
    --color-text-faint: #7c6b52;
    --color-text-inverse: #16110c;
    --color-primary: #d68a3c;
    --color-primary-hover: #e6a054;
    --color-primary-active: #f0b06a;
    --color-primary-highlight: #3a2c18;
    --color-error: #d6704c;
    --color-error-highlight: #3a2419;
    --color-success: #8fae5d;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.5);
  }
}

/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-text-size-adjust: none; text-size-adjust: none;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth; scroll-padding-top: var(--space-16);
}
body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-interactive), color var(--transition-interactive);
}
h1, h2, h3, h4 { font-family: var(--font-display); text-wrap: balance; line-height: 1.15; font-weight: 600; }
p, li { text-wrap: pretty; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }
.wrap { max-width: var(--content-wide); margin: 0 auto; padding-inline: var(--space-6); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-family: var(--font-body); font-weight: 600; font-size: var(--text-sm);
  padding: var(--space-3) var(--space-6); border-radius: var(--radius-full);
  transition: all var(--transition-interactive); white-space: nowrap;
}
.btn-primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-ghost { background: transparent; color: var(--color-text); border: 1px solid var(--color-border); }
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }
.btn-sm { padding: var(--space-2) var(--space-4); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding-block: var(--space-4); }
.logo { display: flex; align-items: center; gap: var(--space-2); font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; color: var(--color-text); }
.logo span { white-space: nowrap; }
.logo-bg { color: var(--color-primary); }
@media (max-width: 480px) { .logo { font-size: var(--text-xs); gap: var(--space-1); } }
.header-nav { display: flex; align-items: center; gap: var(--space-6); }
.header-nav a:not(.btn) { font-size: var(--text-sm); color: var(--color-text-muted); }
.header-nav a:not(.btn):hover { color: var(--color-primary); }
.theme-toggle { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-full); color: var(--color-text-muted); }
@media (max-width: 480px) {
  .header-nav { gap: var(--space-3); }
  .header-nav .btn-sm { padding: var(--space-2) var(--space-3); font-size: var(--text-xs); }
}
.theme-toggle:hover { background: var(--color-surface-offset); color: var(--color-primary); }
@media (max-width: 640px) { .header-nav a:not(.btn) { display: none; } }

/* ===== Status banner ===== */
.status-banner { border-bottom: 1px solid var(--color-divider); }
.status-banner-inner { display: flex; align-items: center; gap: var(--space-3); padding-block: var(--space-4); font-size: var(--text-sm); font-weight: 500; }
.status-icon { flex-shrink: 0; }
.status-banner[data-state="success"] { background: var(--color-primary-highlight); }
.status-banner[data-state="success"] .status-icon { color: var(--color-success); }
.status-banner[data-state="error"] { background: var(--color-error-highlight); }
.status-banner[data-state="error"] .status-icon { color: var(--color-error); }
.status-banner-close { margin-left: auto; flex-shrink: 0; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-full); font-size: 1.2rem; line-height: 1; color: var(--color-text-faint); }
.status-banner-close:hover { background: rgba(0, 0, 0, 0.06); color: var(--color-text); }

/* ===== Hero ===== */
.hero { position: relative; padding-block: clamp(var(--space-16), 10vw, var(--space-32)) clamp(var(--space-12), 8vw, var(--space-24)); overflow: hidden; }
.hero-inner { position: relative; z-index: 1; max-width: var(--content-wide); display: grid; grid-template-columns: minmax(0, var(--content-default)) minmax(240px, 360px); align-items: center; gap: var(--space-8); }
.hero-text { max-width: var(--content-default); }
.eyebrow { display: inline-block; font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-primary); margin-bottom: var(--space-4); }
.hero h1 { font-size: var(--text-2xl); color: var(--color-text); margin-bottom: var(--space-6); max-width: 20ch; }
.hero-sub { font-size: var(--text-lg); color: var(--color-text-muted); max-width: 58ch; margin-bottom: var(--space-8); }
.hero-cta { display: flex; gap: var(--space-4); flex-wrap: wrap; margin-bottom: var(--space-8); }
.hero-tours { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.tour-chip { font-size: var(--text-xs); font-weight: 600; padding: var(--space-2) var(--space-4); border-radius: var(--radius-full); background: var(--color-surface-offset); border: 1px solid var(--color-border); color: var(--color-text-muted); }
.hero-glow { position: absolute; top: -20%; right: -10%; width: 60vw; height: 60vw; max-width: 700px; max-height: 700px; background: radial-gradient(circle, color-mix(in oklab, var(--color-primary) 25%, transparent), transparent 70%); pointer-events: none; }
.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; }
.hero-visual img { display: block; width: 100%; max-width: 360px; height: auto; aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--radius-lg); border: 1px solid var(--color-border); box-shadow: 0 20px 40px rgba(42, 29, 18, 0.18); }
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; gap: var(--space-6); }
  .hero-text { max-width: 100%; margin-inline: auto; }
  .hero h1, .hero-sub { max-width: none; }
  .hero-cta, .hero-tours { justify-content: center; }
  .hero-visual img { max-width: 420px; aspect-ratio: 4 / 3; object-position: center 60%; }
}

/* ===== Missed the tour ===== */
.missed { padding-block: clamp(var(--space-12), 6vw, var(--space-16)); border-top: 1px solid var(--color-divider); text-align: center; }
.missed-inner { max-width: 680px; margin: 0 auto; }
.missed h2 { font-size: var(--text-xl); margin-bottom: var(--space-4); }
.missed p { color: var(--color-text-muted); font-size: var(--text-base); line-height: 1.65; }

/* ===== How it works ===== */
.how { padding-block: clamp(var(--space-16), 8vw, var(--space-24)); border-top: 1px solid var(--color-divider); }
.how h2 { font-size: var(--text-xl); margin-bottom: var(--space-10); }
.how-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
.how-card { padding: var(--space-6); background: var(--color-surface); border: 1px solid var(--color-divider); border-radius: var(--radius-lg); }
.how-num { display: block; font-family: var(--font-display); font-size: var(--text-lg); color: var(--color-primary); margin-bottom: var(--space-3); }
.how-card h3 { font-size: var(--text-base); margin-bottom: var(--space-2); font-family: var(--font-body); font-weight: 600; }
.how-card p { font-size: var(--text-sm); color: var(--color-text-muted); }
@media (max-width: 900px) { .how-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .how-grid { grid-template-columns: 1fr; } }

/* ===== Signup ===== */
.signup { padding-block: clamp(var(--space-16), 8vw, var(--space-24)); background: var(--color-surface); border-top: 1px solid var(--color-divider); border-bottom: 1px solid var(--color-divider); }
.signup-inner { display: grid; grid-template-columns: 1fr 1.3fr; gap: var(--space-16); align-items: start; }
.signup-copy h2 { font-size: var(--text-xl); margin-block: var(--space-3) var(--space-4); }
.signup-copy p { color: var(--color-text-muted); margin-bottom: var(--space-6); }
.signup-list { display: flex; flex-direction: column; gap: var(--space-3); font-size: var(--text-sm); color: var(--color-text-muted); }
.signup-list li { list-style: none; padding-left: var(--space-6); position: relative; }
.signup-list li::before { content: '✓'; position: absolute; left: 0; color: var(--color-primary); font-weight: 700; }

.signup-form { display: flex; flex-direction: column; gap: var(--space-6); background: var(--color-surface-2); border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: var(--space-8); box-shadow: var(--shadow-md); }
.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field > label, .field > legend { font-size: var(--text-sm); font-weight: 600; padding: 0; }
.field-hint { font-weight: 400; color: var(--color-text-faint); }
.field input[type="email"], .field input[type="date"] {
  padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md);
  background: var(--color-surface); color: var(--color-text); font-size: var(--text-base); width: 100%;
}
.field input[type="email"]:focus, .field input[type="date"]:focus { border-color: var(--color-primary); }
fieldset.field { border: none; }
.checkbox-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); margin-top: var(--space-1); }
.checkbox-card { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-4) var(--space-5); border: 1px solid var(--color-border); border-radius: var(--radius-md); font-size: var(--text-sm); font-weight: 500; cursor: pointer; transition: border-color var(--transition-interactive), background var(--transition-interactive); }
.checkbox-card:has(input:checked) { border-color: var(--color-primary); background: var(--color-primary-highlight); }
.checkbox-card input { accent-color: var(--color-primary); width: 18px; height: 18px; flex-shrink: 0; }
@media (max-width: 480px) { .checkbox-grid { grid-template-columns: 1fr; } }

.date-list { display: flex; flex-direction: column; gap: var(--space-2); }
.date-row { display: flex; gap: var(--space-2); align-items: center; }
.date-row input { flex: 1; }
.date-remove { flex-shrink: 0; width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-md); color: var(--color-text-faint); border: 1px solid var(--color-border); }
.date-remove:hover { color: var(--color-error); border-color: var(--color-error); }

.form-message { font-size: var(--text-sm); min-height: 1.5em; }
.form-message[data-state="error"] { color: var(--color-error); }
.form-message[data-state="success"] { color: var(--color-success); }

@media (max-width: 860px) { .signup-inner { grid-template-columns: 1fr; gap: var(--space-8); } }

/* ===== FAQ ===== */
.faq { padding-block: clamp(var(--space-16), 8vw, var(--space-24)); }
.faq h2 { font-size: var(--text-xl); margin-bottom: var(--space-10); }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-8) var(--space-10); }
.faq-item h3 { font-size: var(--text-base); font-family: var(--font-body); font-weight: 600; margin-bottom: var(--space-2); }
.faq-item p { color: var(--color-text-muted); font-size: var(--text-sm); }
@media (max-width: 700px) { .faq-grid { grid-template-columns: 1fr; } }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--color-divider); padding-block: var(--space-8); }
.footer-inner { display: flex; flex-direction: row; align-items: center; justify-content: space-between; gap: var(--space-6); flex-wrap: wrap; font-size: var(--text-xs); color: var(--color-text-faint); }
.footer-text { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-links { display: flex; gap: var(--space-4); flex-wrap: wrap; }
.footer-links a:hover { color: var(--color-primary); }
.footer-sponsor { display: inline-flex; align-items: center; gap: var(--space-2); text-decoration: none; color: var(--color-text-faint); margin-left: auto; flex-shrink: 0; }
.footer-sponsor-label { font-size: var(--text-xs); white-space: nowrap; }
.footer-sponsor-logo { height: 52px; width: auto; display: block; }
.footer-sponsor:hover .footer-sponsor-label { color: var(--color-primary); }
@media (max-width: 640px) {
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-sponsor { margin-left: 0; }
}