/* ─────────────────────────────────────────────────────────────────────────────
   Machamba — design system
   Garden-themed, mobile-first. Warm cream paper, leaf green primary,
   terracotta accent, golden yellow highlights.
───────────────────────────────────────────────────────────────────────────── */

/* ── Fonts ── */

@font-face {
  font-family: "Fraunces";
  src: url("/static/fonts/Fraunces-VariableFont.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Public Sans";
  src: url("/static/fonts/PublicSans-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Public Sans";
  src: url("/static/fonts/PublicSans-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Public Sans";
  src: url("/static/fonts/PublicSans-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Public Sans";
  src: url("/static/fonts/PublicSans-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("/static/fonts/JetBrainsMono-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("/static/fonts/JetBrainsMono-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* ── Design tokens ── */

:root {
  /* surfaces */
  --paper:        #f6efe1;
  --paper-2:      #fbf6ea;
  --paper-sunk:   #ede4d0;
  --line:         #e0d4ba;
  --line-strong:  #c9b893;

  /* ink */
  --ink:          #2d2a22;
  --ink-2:        #5a5343;
  --ink-3:        #8a8170;

  /* garden palette */
  --leaf:         #4a7a3a;
  --leaf-deep:    #355a28;
  --leaf-soft:    #b8d29a;
  --leaf-mist:    #e3eed1;

  --terracotta:   #c8694a;
  --terracotta-2: #a55236;
  --clay:         #d8a06b;
  --soil:         #6b4a2e;
  --soil-2:       #8a6a48;

  --petal:        #e89bb0;
  --petal-deep:   #c9758e;
  --pollen:       #f4c95d;
  --pollen-deep:  #d9a83a;

  --sky:          #aacde1;

  /* semantic */
  --primary:      var(--leaf);
  --primary-ink:  #ffffff;
  --bg:           var(--paper);
  --card:         var(--paper-2);
  --success:      #5a8a4a;
  --danger:       #b8513a;

  /* type */
  --font-display: "Fraunces", "Iowan Old Style", "Palatino", Georgia, serif;
  --font-ui:      "Public Sans", "Inter", system-ui, -apple-system, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* radii */
  --r-sm: 6px;
  --r:    10px;
  --r-lg: 16px;
  --r-xl: 22px;

  /* shadows */
  --shadow-sm: 0 1px 0 rgba(80,60,20,.04), 0 1px 2px rgba(80,60,20,.06);
  --shadow:    0 1px 0 rgba(80,60,20,.04), 0 4px 12px rgba(80,60,20,.08);
  --shadow-lg: 0 2px 0 rgba(80,60,20,.04), 0 12px 28px rgba(80,60,20,.12);

  /* spacing */
  --gap-1: 4px;
  --gap-2: 8px;
  --gap-3: 12px;
  --gap-4: 16px;
  --gap-5: 24px;
  --gap-6: 32px;
  --gap-7: 48px;
}

/* ── Reset ── */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font-ui);
  color: var(--ink);
  background: var(--paper);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
}
h1 { font-size: 32px; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: 22px; line-height: 1.2; }
h3 { font-size: 17px; line-height: 1.3; font-weight: 600; }
p  { margin: 0; }
a  { color: var(--leaf); text-decoration: none; }
a:hover { text-decoration: underline; }

button, input, textarea, select { font-family: inherit; }
button { cursor: pointer; }

/* ── App shell ── */

.screen {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100dvh;
  padding: 16px 18px 88px;   /* bottom pad clears the tabbar */
  background: var(--paper);
}

/* screens without a logged-in user (login, register) have no tabbar */
.screen--auth {
  padding-bottom: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100dvh;
}

/* ── Bottom tab bar ── */

.tabbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: rgba(251, 246, 234, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
  padding: 8px 8px 16px;     /* extra bottom for home indicator on iOS */
}

.tabbar a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 6px 0;
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-3);
  text-decoration: none;
}
.tabbar a.active { color: var(--leaf-deep); }
.tabbar a svg { width: 22px; height: 22px; }

/* ── Topbar ── */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  color: var(--leaf-deep);
  letter-spacing: -0.01em;
  text-decoration: none;
}

.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 600;
  color: var(--soil);
}

/* ── Buttons ── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 20px;
  border-radius: var(--r);
  border: 1px solid transparent;
  font-family: var(--font-ui);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.005em;
  background: var(--paper-2);
  color: var(--ink);
  transition: transform 80ms ease, background 120ms ease, opacity 120ms ease;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
.btn:active  { transform: translateY(1px); }
.btn:hover   { text-decoration: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--leaf);
  color: #fff;
  border-color: var(--leaf-deep);
  box-shadow: 0 1px 0 var(--leaf-deep), 0 1px 0 rgba(0,0,0,.04);
}
.btn-primary:hover { background: var(--leaf-deep); }

.btn-secondary {
  background: var(--paper-2);
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn-ghost {
  background: transparent;
  color: var(--ink-2);
  height: 36px;
  font-size: 14px;
  padding: 0 12px;
}

.btn-danger {
  background: transparent;
  color: var(--danger);
  border-color: var(--danger);
  height: 36px;
  font-size: 14px;
  padding: 0 12px;
}

.btn-sm {
  height: 36px;
  font-size: 14px;
  padding: 0 14px;
}

.btn-full { width: 100%; }

/* ── Cards ── */

.card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 16px;
}

/* ── Form elements ── */

.label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}

.label span { font-weight: 400; color: var(--ink-3); }

.input, .textarea {
  width: 100%;
  font-family: var(--font-ui);
  font-size: 16px;
  color: var(--ink);
  background: var(--paper-sunk);
  border: 1px solid var(--line-strong);
  border-radius: var(--r);
  padding: 12px 14px;
  outline: none;
  transition: border-color 120ms, background 120ms;
  -webkit-appearance: none;
  appearance: none;
}
.input:focus, .textarea:focus {
  border-color: var(--leaf);
  background: #fff;
}
.input::placeholder, .textarea::placeholder { color: var(--ink-3); }
.textarea {
  min-height: 220px;
  resize: vertical;
  line-height: 1.55;
}

.form-hint {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 6px;
  font-size: 12px;
  color: var(--ink-3);
}
.form-hint span { font-family: var(--font-mono); }

/* ── Chips ── */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--leaf-mist);
  color: var(--leaf-deep);
  border: 1px solid var(--leaf-soft);
  white-space: nowrap;
}
.chip-clay  { background: #f6e6d3; color: var(--soil);       border-color: #e8cfa8; }
.chip-petal { background: #f9e1e8; color: var(--petal-deep); border-color: #efc5d2; }
.chip-muted { background: var(--paper-sunk); color: var(--ink-3); border-color: var(--line-strong); }

/* ── Divider ── */

.divider {
  height: 1px;
  background: var(--line);
  margin: 16px 0;
  border: 0;
}

/* ── Entry list ── */

.entries-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}

.entry-card {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 12px;
  text-decoration: none;
  color: inherit;
  transition: opacity 100ms;
}
.entry-card:hover { opacity: 0.8; text-decoration: none; }

.entry-flower {
  flex-shrink: 0;
  background: var(--leaf-mist);
  border-radius: 10px;
  padding: 4px;
  border: 1px solid var(--leaf-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

.entry-info { flex: 1; min-width: 0; }

.entry-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.25;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.entry-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 4px;
  font-size: 12px;
  color: var(--ink-3);
  font-family: var(--font-mono);
}

.entry-meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 999px;
  background: var(--ink-3);
  flex-shrink: 0;
}

/* ── Entry detail ── */

.entry-body {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  white-space: pre-wrap;
  word-break: break-word;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2);
  text-decoration: none;
  margin-bottom: 16px;
}
.back-link:hover { color: var(--ink); text-decoration: none; }

/* ── Grading section ── */

.corrected-text {
  margin-top: 4px;
  margin-bottom: 16px;
  padding: 12px 14px;
  background: var(--paper-sunk);
  border: 1px solid var(--line);
  border-radius: var(--r);
}
.corrected-text h3 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-3);
  margin: 0 0 8px;
  font-weight: 600;
}
.corrected-text-body {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}
.diff-changed {
  background: var(--pollen);
  border-radius: 3px;
  padding: 0 2px;
}

.grading-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
}

.grading-assessment {
  font-size: 15px;
  color: var(--ink-2);
  font-style: italic;
  margin-bottom: 14px;
}

.error-item {
  background: var(--paper-sunk);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 12px;
  margin-bottom: 8px;
}
.error-item:last-child { margin-bottom: 0; }

.error-field {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 4px 10px;
  font-size: 14px;
  margin-bottom: 6px;
}
.error-field:last-child { margin-bottom: 0; }
.error-field dt { color: var(--ink-3); font-weight: 600; }
.error-field dd { margin: 0; color: var(--ink); }

.suggestions-list {
  margin: 0;
  padding-left: 18px;
  font-size: 14px;
  color: var(--ink-2);
}
.suggestions-list li { margin-bottom: 4px; }

.htmx-indicator { display: none; font-size: 14px; color: var(--ink-3); }
.htmx-request .htmx-indicator { display: inline; }

/* ── Stat tiles ── */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.stat-tile {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
}
.stat-tile--leaf { background: var(--leaf-mist); border-color: var(--leaf-soft); }
.stat-tile--clay { background: #f6e6d3;           border-color: #e8cfa8; }

.stat-tile-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-2);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.stat-tile-value {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-top: 6px;
}
.stat-tile-number {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 500;
  line-height: 1;
}
.stat-tile--leaf .stat-tile-number { color: var(--leaf-deep); }
.stat-tile--clay .stat-tile-number { color: var(--soil); }

.stat-tile-unit {
  font-size: 12px;
  color: var(--ink-3);
  font-weight: 600;
}

/* ── Heatmap ── */

.heatmap-card {
  margin-top: 16px;
  padding: 14px 4px 14px 14px;
  overflow: hidden;
}

.heatmap-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-right: 14px;
  margin-bottom: 12px;
}

.heatmap-hint {
  font-size: 11px;
  color: var(--ink-3);
  font-family: var(--font-mono);
}

/* ── Sparkline / error chart ── */

.sparkline-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 2px;
}

.sparkline-value {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--terracotta-2);
  font-weight: 500;
}

.sparkline-hint {
  font-size: 12px;
  color: var(--ink-3);
}

/* ── Achievements ── */

.achievement-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 14px;
}

.achievement {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.achievement-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--paper-sunk);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
}
.achievement-icon--unlocked {
  background: var(--leaf-mist);
  border-color: var(--leaf-soft);
}

.achievement-body { flex: 1; min-width: 0; }

.achievement-name-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}

.achievement-name {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}
.achievement-name--unlocked { color: var(--leaf-deep); }

.achievement-badge {
  font-size: 10px;
  font-weight: 700;
  color: var(--leaf-deep);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.achievement-desc {
  font-size: 13px;
  color: var(--ink-2);
  margin-top: 2px;
}

.achievement-progress {
  margin-top: 6px;
}
.achievement-progress-bar {
  height: 4px;
  background: var(--paper-sunk);
  border-radius: 999px;
  overflow: hidden;
}
.achievement-progress-fill {
  height: 100%;
  background: var(--leaf);
  border-radius: 999px;
}
.achievement-progress-label {
  font-size: 10px;
  color: var(--ink-3);
  margin-top: 3px;
  font-family: var(--font-mono);
}

/* ── Profile / passkeys ── */

.passkey-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  margin-bottom: 10px;
}

.passkey-name-row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.passkey-name-row .input {
  flex: 1;
  min-width: 8rem;
  height: 36px;
  padding: 0 12px;
  font-size: 14px;
}

.passkey-meta {
  font-size: 12px;
  color: var(--ink-3);
  font-family: var(--font-mono);
}

/* ── Auth pages (login / register) ── */

.auth-card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 32px 28px;
  margin: 0 auto;
  max-width: 400px;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 500;
  color: var(--leaf-deep);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.auth-subtitle {
  font-size: 15px;
  color: var(--ink-2);
  margin-bottom: 28px;
}

.terms {
  margin-bottom: 16px;
}

.terms-title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-3);
  font-weight: 600;
  margin: 0 0 8px;
}

.terms-body {
  background: var(--paper-sunk);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-2);
  max-height: 180px;
  overflow-y: auto;
}

.terms-body p { margin: 0 0 8px; }
.terms-body p:last-child { margin-bottom: 0; }

.terms-accept {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--ink);
  cursor: pointer;
}

.terms-accept input[type="checkbox"] {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--leaf);
  cursor: pointer;
}

/* ── Page-level layout helpers ── */

.page-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-label {
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  color: var(--leaf-deep);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ── Locale switcher ── */

.locale-switcher {
  margin: 0;
  display: inline-flex;
}

.locale-switcher select {
  -webkit-appearance: none;
  appearance: none;
  background-color: var(--paper);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' stroke='%238a8170' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-2);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  line-height: 1;
  padding: 5px 24px 5px 10px;
  transition: border-color 120ms, color 120ms;
}

.locale-switcher select:hover { color: var(--ink); border-color: var(--line-strong); }
.locale-switcher select:focus { outline: none; border-color: var(--leaf); color: var(--ink); }

.page-intro {
  color: var(--ink-2);
  font-size: 15px;
  margin-top: 8px;
  max-width: 36ch;
}

.mt-4  { margin-top:  4px; }
.mt-8  { margin-top:  8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }
.mt-24 { margin-top: 24px; }

/* ── Responsive: a bit more room on wider screens ── */

@media (min-width: 480px) {
  .screen {
    padding-left: 24px;
    padding-right: 24px;
  }
  .tabbar {
    max-width: 480px;
    left: 50%;
    transform: translateX(-50%);
  }
}