/* Design system — tokens and component classes. This file is the source of
   truth for the look: retune here, never hard-code values in a page.

   Warm and quiet. Cream paper, white cards, a terracotta that is used
   sparingly enough that it still means something when it appears. */

:root {
  --color-bg: #faf6f0;
  --color-surface: #ffffff;
  --color-text: #2f2823;
  --color-accent: #c0503a;
  --color-accent-2: #d3853f;

  /* Soft, not structural — a hairline that separates without drawing a box. */
  --color-divider: color-mix(in srgb, #2f2823 12%, transparent);
  --color-divider-strong: color-mix(in srgb, #2f2823 20%, transparent);

  /* Warm neutrals: the greys carry the same red/yellow as the paper, so
     nothing on the page reads as cold. */
  --color-neutral-100: #fbf8f4;
  --color-neutral-200: #f2ece4;
  --color-neutral-300: #e4dbd0;
  --color-neutral-400: #cfc3b5;
  --color-neutral-500: #b3a596;
  --color-neutral-600: #948577;
  --color-neutral-700: #73665a;
  --color-neutral-800: #534940;
  --color-neutral-900: #332c26;

  --color-accent-100: #fdf0ec;
  --color-accent-200: #fadcd3;
  --color-accent-300: #f4bdad;
  --color-accent-400: #e89277;
  --color-accent-500: #d4664a;
  --color-accent-600: #c0503a;
  --color-accent-700: #a03e2c;
  --color-accent-800: #7a2f21;
  --color-accent-900: #522118;

  --color-accent-2-100: #fdf4e8;
  --color-accent-2-200: #f9e4c4;
  --color-accent-2-300: #f0cb94;
  --color-accent-2-400: #e3aa61;
  --color-accent-2-500: #d3853f;
  --color-accent-2-600: #b56b2f;
  --color-accent-2-700: #915324;
  --color-accent-2-800: #6b3d1c;
  --color-accent-2-900: #452817;

  --font-heading: "Fraunces", Georgia, "Noto Serif TC", serif;
  --font-heading-weight: 600;
  --font-body: "Archivo", system-ui, sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --radius-pill: 999px;

  /* Warm-tinted shadows: a cool grey shadow on cream paper looks like dirt. */
  --shadow-sm: 0 1px 3px color-mix(in srgb, #3a2e26 9%, transparent);
  --shadow-md: 0 4px 14px color-mix(in srgb, #3a2e26 11%, transparent);
  --shadow-lg: 0 16px 40px color-mix(in srgb, #3a2e26 16%, transparent);
}

/* ══════════════════════════════════════════════════════════════════════════
   Base
   ══════════════════════════════════════════════════════════════════════ */

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  line-height: 1.2;
  letter-spacing: -0.005em;
  margin: 0 0 var(--space-2);
}

h1 { font-size: 40px; }
h2 { font-size: 30px; }
h3 { font-size: 24px; }
h4 { font-size: 19px; }
h5 { font-size: 16px; }
h6 { font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; }

p { margin: 0 0 var(--space-3); }
a { color: var(--color-accent); text-underline-offset: 3px; }
img { display: block; max-width: 100%; }
figure { margin: 0; }

figcaption {
  font-size: 11px;
  margin-top: var(--space-1);
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
}

.text-muted { color: color-mix(in srgb, var(--color-text) 55%, transparent); }

:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; border-radius: var(--radius-sm); }
::selection { background: var(--color-accent-200); }

.grayscale { filter: grayscale(1) contrast(1.05); }

/* — rules — */
.hr {
  height: 1px;
  border: 0;
  margin: var(--space-4) 0;
  background: var(--color-divider);
}

/* ══════════════════════════════════════════════════════════════════════════
   Buttons
   ══════════════════════════════════════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  line-height: 1.2;
  color: var(--color-text);
  background: transparent;
  border: 1px solid transparent;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  transition: background .14s ease, border-color .14s ease, color .14s ease;
}

.btn svg { display: block; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--color-accent-700); }
.btn-primary:active:not(:disabled) { background: var(--color-accent-800); }

.btn-secondary { border-color: var(--color-divider-strong); background: var(--color-surface); }
.btn-secondary:hover:not(:disabled) { background: var(--color-neutral-100); border-color: var(--color-neutral-400); }
.btn-secondary:active:not(:disabled) { background: var(--color-neutral-200); }

.btn-ghost { color: var(--color-accent); padding-inline: var(--space-2); }
.btn-ghost:hover:not(:disabled) { background: var(--color-accent-100); }
.btn-ghost:active:not(:disabled) { background: var(--color-accent-200); }

.btn-icon { width: 36px; height: 36px; padding: 0; border-radius: 50%; }
.btn-block { width: 100%; }

/* ══════════════════════════════════════════════════════════════════════════
   Forms
   ══════════════════════════════════════════════════════════════════════ */

.field > label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 6px;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}

.input {
  width: 100%;
  min-height: 38px;
  padding: 8px 12px;
  font: inherit;
  font-size: 14px;
  color: var(--color-text);
  caret-color: var(--color-accent);
  background: var(--color-surface);
  border: 1px solid var(--color-divider-strong);
  border-radius: var(--radius-md);
  transition: border-color .14s ease, box-shadow .14s ease;
}

.input::placeholder { color: var(--color-neutral-500); }
.input:hover { border-color: var(--color-neutral-400); }
.input:focus-visible {
  border-color: var(--color-accent);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-accent-100);
}

textarea.input { min-height: 90px; resize: vertical; line-height: 1.6; }

.radio { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 14px; }
.radio input, .seg-opt input {
  position: absolute; opacity: 0; width: 0; height: 0; pointer-events: none;
}

.radio .dot {
  width: 16px; height: 16px; flex: none; border-radius: 50%;
  border: 1.5px solid var(--color-divider-strong);
}
.radio:hover .dot { border-color: var(--color-accent); }
.radio input:checked + .dot {
  border-color: var(--color-accent); background: var(--color-accent);
  box-shadow: inset 0 0 0 4px var(--color-surface);
}
.radio input:focus-visible + .dot { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* A segmented control: a pill of options with the live one filled in. */
.seg {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  background: var(--color-neutral-200);
  border-radius: var(--radius-pill);
}

.seg-opt {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius-pill);
  color: color-mix(in srgb, var(--color-text) 65%, transparent);
  transition: background .14s ease, color .14s ease;
}

.seg-opt:has(input:checked) {
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}
.seg-opt:not(:has(input:checked)):hover { color: var(--color-text); }
.seg-opt:has(input:focus-visible) { outline: 2px solid var(--color-accent); outline-offset: -2px; }

/* ══════════════════════════════════════════════════════════════════════════
   Cards, tags, nav, tables, dialogs
   ══════════════════════════════════════════════════════════════════════ */

.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  transition: box-shadow .16s ease, transform .16s ease;
}

.card-kicker { font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent); }

.card-title {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 17px;
  line-height: 1.25;
}

.card-body { margin: 0; font-size: 13px; opacity: 0.8; flex: 1; }

.card-meta {
  display: flex; align-items: center; gap: 6px; font-size: 12px;
  color: color-mix(in srgb, var(--color-text) 50%, transparent);
}

.elev-sm { box-shadow: var(--shadow-sm); }
.elev-md { box-shadow: var(--shadow-md); }
.elev-lg { box-shadow: var(--shadow-lg); }

.tag {
  display: inline-flex; align-items: center;
  font-size: 11px; font-weight: 600; letter-spacing: 0.01em;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
}

.tag-accent { background: var(--color-accent-100); color: var(--color-accent-800); }
.tag-accent-2 { background: var(--color-accent-2-100); color: var(--color-accent-2-800); }
.tag-neutral { background: var(--color-neutral-200); color: var(--color-neutral-800); }
.tag-outline { border: 1px solid var(--color-accent-300); color: var(--color-accent-700); }

.nav {
  display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-divider);
}

.nav-brand {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 19px;
  margin-right: auto;
}

.nav a { color: inherit; text-decoration: none; font-size: 14px; }
.nav a:hover, .nav a[aria-current='page'] { color: var(--color-accent); }

.table { width: 100%; border-collapse: collapse; font-size: 14px; }

.table th {
  text-align: left; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  color: color-mix(in srgb, var(--color-text) 60%, transparent);
  padding: var(--space-2); border-bottom: 1px solid var(--color-divider-strong);
}

.table td { padding: var(--space-2); border-bottom: 1px solid var(--color-divider); }
.table tbody tr:hover { background: var(--color-neutral-100); }

.dialog-backdrop {
  position: fixed; inset: 0; display: grid; place-items: center;
  padding: var(--space-4);
  background: color-mix(in srgb, var(--color-neutral-900) 42%, transparent);
  backdrop-filter: blur(2px);
}

.dialog {
  width: min(440px, 100%); display: flex; flex-direction: column; gap: var(--space-3);
  padding: var(--space-6); border-radius: var(--radius-lg);
  background: var(--color-surface); box-shadow: var(--shadow-lg);
}

.dialog-title {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 20px;
}

.dialog-body { font-size: 14px; opacity: 0.85; }
.dialog-actions { display: flex; justify-content: flex-end; gap: var(--space-2); margin-top: var(--space-2); }