/* ============================================================
   DoughRise Pro — Design System
   Palette: #FAFAF8 bg · #1A1A1A text · #C4922A accent
   ============================================================ */

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

:root {
  --bg: #FAFAF8;
  --text: #1A1A1A;
  --text-muted: #6B6B6B;
  --accent: #C4922A;
  --accent-light: #F5EDD9;
  --border: #E8E4DF;
  --card: #FFFFFF;
  --danger: #C0392B;
  --success: #27AE60;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.10);
}

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

/* --- Layout --- */

.container {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

/* --- Navigation --- */

.nav {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1rem;
}

.nav__brand {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.nav__pro { color: var(--accent); }

.nav__right { display: flex; align-items: center; gap: 0.75rem; }

/* --- Plan badge --- */

.plan-badge {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: 20px;
  border: 1.5px solid currentColor;
}

.plan-badge--pro    { color: var(--accent); }
.plan-badge--pro_plus { color: var(--accent); }
.plan-badge--trial  { color: var(--text-muted); }
.plan-badge--cancelled { color: var(--danger); }

/* --- Buttons --- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: inherit;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.4;
}

.btn--primary  { background: var(--accent); color: #fff; }
.btn--primary:hover  { background: #b07d1f; }
.btn--secondary { background: var(--accent-light); color: var(--accent); border: 1.5px solid var(--accent); }
.btn--secondary:hover { background: #eddfb8; }
.btn--ghost { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn--ghost:hover { background: var(--bg); color: var(--text); }
.btn--danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
.btn--danger:hover { background: #fdecea; }
.btn--sm { font-size: 0.8rem; padding: 0.33rem 0.72rem; }
.btn--full { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn--icon {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
  line-height: 1;
  font-family: inherit;
}
.btn--icon:hover { color: var(--danger); background: #fdecea; }

/* --- Toggle button group --- */

.toggle-group {
  display: flex;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.toggle-btn {
  flex: 1;
  padding: 0.45rem 0.75rem;
  font-size: 0.83rem;
  font-weight: 500;
  background: var(--card);
  color: var(--text-muted);
  border: none;
  border-right: 1px solid var(--border);
  cursor: pointer;
  font-family: inherit;
}
.toggle-btn:last-child { border-right: none; }
.toggle-btn--active { background: var(--accent); color: #fff; }

/* --- Cards --- */

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

/* --- Page header --- */

.page-header { padding: 1.25rem 0 1rem; }
.page-title { font-size: 1.4rem; font-weight: 700; letter-spacing: -0.02em; }
.page-subtitle { font-size: 0.88rem; color: var(--text-muted); margin-top: 0.2rem; }

/* --- Section header --- */

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}
.section-title { font-size: 0.95rem; font-weight: 600; }

/* --- Stats bar --- */

.stats-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.stat-item { background: var(--card); padding: 1rem 0.75rem; text-align: center; }
.stat-value { font-size: 1.5rem; font-weight: 700; color: var(--accent); line-height: 1.2; }
.stat-label { font-size: 0.7rem; color: var(--text-muted); margin-top: 0.2rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* --- Formula grid --- */

.formula-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 480px) {
  .formula-grid { grid-template-columns: repeat(2, 1fr); }
}

.formula-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}
.formula-card__name { font-weight: 600; font-size: 0.92rem; margin-bottom: 0.25rem; }
.formula-card__meta { font-size: 0.76rem; color: var(--text-muted); margin-bottom: 0.75rem; }
.formula-card__actions { display: flex; gap: 0.5rem; }

.type-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 2px 7px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 4px;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* --- Bake log list --- */

.bake-list { display: flex; flex-direction: column; gap: 0.5rem; }

.bake-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  cursor: pointer;
}

.bake-item__header { display: flex; justify-content: space-between; align-items: flex-start; gap: 0.5rem; }
.bake-item__name { font-weight: 600; font-size: 0.9rem; }
.bake-item__date { font-size: 0.76rem; color: var(--text-muted); white-space: nowrap; }

.bake-item__meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 0.3rem;
}

.bake-item__details {
  display: none;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
}

.bake-item--open .bake-item__details { display: block; }

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.4rem 1rem;
  margin-bottom: 0.5rem;
}

.detail-row { display: flex; flex-direction: column; }
.detail-label { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.detail-value { font-weight: 500; }

/* --- Stars --- */

.stars { display: inline-flex; gap: 1px; font-size: 0.9rem; }
.star-filled { color: var(--accent); }
.star-empty  { color: var(--border); }

.star-selector { display: flex; gap: 4px; }
.star-selector .star-btn {
  font-size: 1.5rem;
  color: var(--border);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  line-height: 1;
}
.star-selector .star-btn--filled { color: var(--accent); }

/* --- Forms --- */

.form-group { margin-bottom: 1rem; }

label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.35rem;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="date"],
textarea,
select {
  width: 100%;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 0.52rem 0.75rem;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

input:focus, textarea:focus, select:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 80px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0.75rem; }

.input-group { display: flex; }
.input-group input { border-radius: var(--radius) 0 0 var(--radius); flex: 1; min-width: 0; }
.input-group .input-suffix {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-left: none;
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 0 0.75rem;
  font-size: 0.83rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  white-space: nowrap;
}

/* --- Dynamic ingredient rows --- */

.ingredient-row {
  display: grid;
  gap: 0.4rem;
  align-items: start;
  margin-bottom: 0.4rem;
}
.ingredient-row--2 { grid-template-columns: 1fr auto auto; }
.ingredient-row--3 { grid-template-columns: 2fr 1fr 1fr auto; }
.ingredient-row input { margin-bottom: 0; }

/* --- Calculator tabs --- */

.calc-tabs {
  display: flex;
  overflow-x: auto;
  border-bottom: 2px solid var(--border);
  margin-bottom: 1.5rem;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  gap: 0;
}
.calc-tabs::-webkit-scrollbar { display: none; }

.calc-tab {
  flex-shrink: 0;
  padding: 0.6rem 0.9rem;
  font-size: 0.81rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  background: none;
  font-family: inherit;
}
.calc-tab--active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }
.calc-tab:hover:not(.calc-tab--active) { color: var(--text); }

.calc-panel { display: none; }
.calc-panel--active { display: block; }

/* --- Output box --- */

.output-box {
  background: var(--accent-light);
  border: 1.5px solid var(--accent);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  margin-top: 1.25rem;
}

.output-box__title {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.output-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.28rem 0;
  border-bottom: 1px solid rgba(196,146,42,0.15);
  font-size: 0.88rem;
}
.output-row:last-child { border-bottom: none; }
.output-row__label { color: var(--text-muted); }
.output-row__value { font-weight: 600; color: var(--text); }

.output-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.6rem;
  font-style: italic;
}

/* --- Save formula bar --- */

.save-formula-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

/* --- Modal --- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal {
  background: var(--card);
  border-radius: 12px;
  padding: 1.5rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-md);
}

.modal__title { font-size: 1.05rem; font-weight: 600; margin-bottom: 1rem; }
.modal__actions { display: flex; gap: 0.75rem; margin-top: 1.25rem; justify-content: flex-end; }

/* --- Toast --- */

.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--text);
  color: #fff;
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  font-size: 0.87rem;
  font-weight: 500;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  transition: opacity 0.2s, transform 0.2s;
}
.toast--visible { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast--error   { background: var(--danger); }
.toast--success { background: #2d7d46; }

/* --- Empty state --- */

.empty-state {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--text-muted);
  font-size: 0.88rem;
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
}
.empty-state__icon  { font-size: 1.8rem; margin-bottom: 0.5rem; }
.empty-state__title { font-weight: 600; color: var(--text); margin-bottom: 0.3rem; font-size: 0.95rem; }

/* --- Login page --- */

.login-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow-md);
}

.login-logo {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text);
  margin-bottom: 0.25rem;
  text-align: center;
}
.login-logo span { color: var(--accent); }

.login-tagline {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 2rem;
}

/* --- Divider --- */

.divider { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }

/* --- Hint text --- */

.hint { font-size: 0.77rem; color: var(--text-muted); margin-top: 0.25rem; }

/* --- CTA row --- */

.cta-row { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1.5rem; }

/* --- Spacing utils --- */

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

/* --- Responsive tweaks --- */

@media (max-width: 480px) {
  .form-row   { grid-template-columns: 1fr; }
  .form-row-3 { grid-template-columns: 1fr 1fr; }
  .ingredient-row--3 { grid-template-columns: 1fr 1fr auto; }
  .ingredient-row--3 .row-name { grid-column: 1 / -1; }
  .stat-value { font-size: 1.2rem; }
}