/* =============================================================================
   Diski — Quiet Utility
   ============================================================================= */

:root {
  --bg:           #fafaf9;
  --surface:      #ffffff;
  --surface-alt:  #f7f6f3;

  --ink:          #18181b;
  --ink-soft:     #52525b;
  --ink-hint:     #a1a1aa;

  --line:         #e7e5e4;
  --line-soft:    #f0efec;

  --accent:       #d94a26;
  --accent-deep:  #b53619;
  --accent-soft:  #fdeae3;
  --accent-tint:  #fef6f3;

  --positive:     #4d7c4f;
  --positive-soft: #ecf3eb;

  --radius-sm: 8px;
  --radius:    12px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow:    0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.05), 0 8px 24px rgba(0, 0, 0, 0.06);

  --display: 'Geist', system-ui, -apple-system, sans-serif;
  --body:    'Geist', system-ui, -apple-system, sans-serif;
  --mono:    'Geist Mono', ui-monospace, Menlo, monospace;
}

/* ------------------------------------------------------------------------- */
/* Base                                                                      */
/* ------------------------------------------------------------------------- */

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 15.5px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--ink); }

img { max-width: 100%; display: block; }
button { font: inherit; }

::selection { background: var(--accent-soft); color: var(--ink); }

/* ------------------------------------------------------------------------- */
/* Layout                                                                    */
/* ------------------------------------------------------------------------- */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 600px) { .container { padding: 0 18px; } }

.muted { color: var(--ink-soft); }
.hint  { color: var(--ink-hint); }

/* ------------------------------------------------------------------------- */
/* Header                                                                    */
/* ------------------------------------------------------------------------- */

.site-header {
  background: rgba(250, 250, 249, 0.85);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 30;
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 26px; height: 26px;
  border-radius: 7px;
  background: var(--ink);
  color: var(--surface);
  font-weight: 700;
  font-size: 14px;
}

.site-nav {
  display: flex;
  gap: 24px;
  font-size: 14px;
  color: var(--ink-soft);
}
.site-nav a {
  position: relative;
  padding: 4px 0;
  transition: color 0.15s ease;
}
.site-nav a:hover { color: var(--ink); }
.site-nav a[aria-current="page"] {
  color: var(--ink);
}
.site-nav a[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1.5px;
  background: var(--ink);
  border-radius: 2px;
}

/* ------------------------------------------------------------------------- */
/* Type                                                                      */
/* ------------------------------------------------------------------------- */

h1, h2, h3 {
  margin: 0;
  letter-spacing: -0.02em;
  color: var(--ink);
}
h1 { font-size: 38px; line-height: 1.1; font-weight: 600; }
h2 { font-size: 22px; line-height: 1.2; font-weight: 600; }
h3 { font-size: 16px; line-height: 1.3; font-weight: 500; }

@media (max-width: 600px) { h1 { font-size: 30px; } }

p { margin: 0; }

.lead {
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 56ch;
}

/* ------------------------------------------------------------------------- */
/* Buttons                                                                   */
/* ------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--surface);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}
.btn:hover { background: #2a2a30; color: var(--surface); }
.btn:active { transform: translateY(1px); }

.btn-ghost {
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn-ghost:hover { background: var(--surface-alt); border-color: var(--ink-hint); color: var(--ink); }

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--ink-soft);
  transition: color 0.15s ease, gap 0.2s ease;
}
.btn-link:hover { color: var(--ink); gap: 10px; }

/* ------------------------------------------------------------------------- */
/* Hero                                                                      */
/* ------------------------------------------------------------------------- */

.hero {
  padding: 64px 0 48px;
}
.hero h1 { max-width: 18ch; }
.hero .lead { margin-top: 18px; }
.hero-cta { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }

.hero-meta {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 28px 36px;
  font-size: 13px;
  color: var(--ink-soft);
}
.hero-meta-item { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta-item strong {
  color: var(--ink);
  font-weight: 500;
}
.hero-meta-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--positive);
}

/* ------------------------------------------------------------------------- */
/* Sections                                                                  */
/* ------------------------------------------------------------------------- */

section.block { padding: 32px 0; }
section.block + section.block { padding-top: 12px; }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.section-head h2 { font-size: 20px; }

/* ------------------------------------------------------------------------- */
/* Shop card grid (Featured & all-shops)                                     */
/* ------------------------------------------------------------------------- */

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
@media (max-width: 900px) { .grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 380px) { .grid { grid-template-columns: 1fr; } }

.shop-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.shop-card:hover {
  color: inherit;
  border-color: var(--ink-hint);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.shop-logo {
  flex-shrink: 0;
  width: 44px; height: 44px;
  background: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 6px;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.shop-logo img { max-width: 100%; max-height: 100%; object-fit: contain; }
.shop-logo--sm { width: 32px; height: 32px; padding: 4px; border-radius: 8px; }
.shop-logo--lg { width: 64px; height: 64px; padding: 10px; border-radius: 14px; }
.shop-logo .placeholder {
  font-weight: 600;
  font-size: 16px;
  color: var(--ink-soft);
}
.shop-logo--sm .placeholder { font-size: 13px; }
.shop-logo--lg .placeholder { font-size: 24px; }

.shop-card-body {
  min-width: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.shop-card-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.shop-card-meta {
  font-size: 13px;
  color: var(--ink-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 20px;
  padding: 0 7px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.01em;
  background: var(--accent-soft);
  color: var(--accent-deep);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ------------------------------------------------------------------------- */
/* Latest list                                                               */
/* ------------------------------------------------------------------------- */

.latest-list {
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.latest-list li {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.12s ease;
}
.latest-list li:last-child { border-bottom: 0; }
.latest-list li:hover { background: var(--surface-alt); }

.latest-list a.row-link {
  display: contents;
  color: inherit;
}

.latest-shop-name {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.latest-discount {
  font-size: 13px;
  color: var(--ink-soft);
  white-space: nowrap;
}
.latest-discount strong {
  color: var(--ink);
  font-weight: 500;
}
.latest-date {
  font-size: 13px;
  color: var(--ink-hint);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 600px) {
  .latest-list li { grid-template-columns: auto 1fr auto; padding: 12px 14px; }
  .latest-date { display: none; }
}

/* ------------------------------------------------------------------------- */
/* All shops page                                                            */
/* ------------------------------------------------------------------------- */

.shops-hero { padding: 48px 0 32px; }
.shops-hero h1 { margin-bottom: 12px; }
.shops-hero .lead { margin-bottom: 24px; }

.shop-filter {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  max-width: 420px;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  font-family: inherit;
  font-size: 14.5px;
  color: var(--ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.shop-filter:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow: 0 0 0 3px rgba(24, 24, 27, 0.08);
}
.shop-filter::placeholder { color: var(--ink-hint); }

.alpha-index {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 8px 0 32px;
}
.alpha-index a {
  display: inline-grid;
  place-items: center;
  width: 30px; height: 30px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-soft);
  border-radius: 7px;
  transition: background 0.12s ease, color 0.12s ease;
}
.alpha-index a:hover {
  background: var(--ink);
  color: var(--surface);
}

.letter-block { margin-bottom: 36px; }
.letter-block-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
.letter-block-letter {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}
.letter-block-count {
  font-size: 12.5px;
  color: var(--ink-hint);
}

/* ------------------------------------------------------------------------- */
/* Shop detail page                                                          */
/* ------------------------------------------------------------------------- */

.breadcrumb {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 24px 0 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb .sep { color: var(--ink-hint); }
.breadcrumb [aria-current] { color: var(--ink); }

.shop-hero {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 8px 0 28px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
@media (max-width: 600px) { .shop-hero { gap: 14px; } }

.shop-hero h1 {
  font-size: 30px;
  margin-bottom: 6px;
}
.shop-hero .lead { font-size: 15px; margin: 0; }
.shop-hero .lead em { color: var(--ink); font-style: normal; font-weight: 500; }

/* ---- Code cards -------------------------------------------------------- */

.codes {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.code {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.code:hover {
  border-color: var(--ink-hint);
  box-shadow: var(--shadow-sm);
}
@media (max-width: 720px) {
  .code {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 16px;
  }
}

.code-discount {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 88px;
}
.code-discount .value {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.code-discount .suffix {
  margin-top: 4px;
  font-size: 12px;
  color: var(--ink-soft);
}

.code-info {
  min-width: 0;
}
.code-info .meta {
  font-size: 14.5px;
  color: var(--ink);
  font-weight: 500;
  margin-bottom: 4px;
}
.code-info .added {
  font-size: 12.5px;
  color: var(--ink-hint);
}

.code-action {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  min-width: 220px;
}
@media (max-width: 720px) {
  .code-action { align-items: stretch; min-width: 0; }
}

.code-value {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: stretch;
  border: 1.5px dashed var(--line);
  border-radius: 8px;
  background: var(--surface-alt);
  font-family: var(--mono);
  overflow: hidden;
  width: 100%;
  min-width: 200px;
}
.code-text {
  padding: 9px 14px;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink);
  user-select: none;
  filter: blur(5px);
  transition: filter 0.25s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
}
.code:not(.is-revealed) .code-text {
  color: var(--ink-soft);
}
.code.is-revealed .code-text {
  filter: none;
  user-select: text;
  background: var(--accent-tint);
  color: var(--ink);
}

.copy-btn {
  border: 0;
  border-left: 1.5px dashed var(--line);
  background: transparent;
  padding: 0 14px;
  font-family: var(--body);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.12s ease, color 0.12s ease;
}
.copy-btn:hover { background: var(--ink); color: var(--surface); border-left-color: var(--ink); }
.code:not(.is-revealed) .copy-btn { display: none; }

.reveal-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border: 0;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease;
  white-space: nowrap;
}
.reveal-btn::after {
  content: '→';
  transition: transform 0.2s ease;
}
.reveal-btn:hover { background: var(--accent-deep); }
.reveal-btn:hover::after { transform: translateX(2px); }
.code.is-revealed .reveal-btn { display: none; }

.reveal-microcopy {
  font-size: 11.5px;
  color: var(--ink-hint);
  text-align: center;
}
.code.is-revealed .reveal-microcopy { display: none; }

/* ---- Editorial about / how section ------------------------------------ */

.shop-meta {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
@media (max-width: 760px) { .shop-meta { grid-template-columns: 1fr; gap: 28px; } }

.shop-meta h2 { font-size: 18px; margin-bottom: 10px; }
.shop-meta p { color: var(--ink-soft); font-size: 15px; }

.shop-meta ol {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: step;
}
.shop-meta ol li {
  counter-increment: step;
  position: relative;
  padding: 6px 0 6px 32px;
  font-size: 15px;
  color: var(--ink-soft);
}
.shop-meta ol li em { color: var(--ink); font-style: normal; font-weight: 500; }
.shop-meta ol li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 6px;
  width: 22px; height: 22px;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--ink);
  background: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: 50%;
}

/* ------------------------------------------------------------------------- */
/* Footer                                                                    */
/* ------------------------------------------------------------------------- */

.site-footer {
  margin-top: 80px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-soft);
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.site-footer a:hover { color: var(--ink); }

/* ------------------------------------------------------------------------- */
/* Utility                                                                   */
/* ------------------------------------------------------------------------- */

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}