:root {
  --ff-serif: 'Cormorant Garamond', Georgia, serif;
  --ff-sans:  'Inter', system-ui, sans-serif;

  --clr-bg:       #FAFAF8;
  --clr-surface:  #FFFFFF;
  --clr-border:   #E8E4DE;
  --clr-text:     #1A1917;
  --clr-muted:    #7A756E;

  --clr-accent:   #1A1917;
  --clr-tint:     #F4F0EA;

  --radius: 12px;
  --max-w:  1080px;
}

body[data-phase="menstrual"]  { --clr-accent: #8B1A3A; --clr-tint: #FDF0F3; }
body[data-phase="follicular"] { --clr-accent: #3D6B4F; --clr-tint: #EEF5F1; }
body[data-phase="ovulatory"]  { --clr-accent: #A07C00; --clr-tint: #FBF6E4; }
body[data-phase="luteal"]     { --clr-accent: #B54A1A; --clr-tint: #FBF0E9; }

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

body {
  font-family: var(--ff-sans);
  font-size: 15px;
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--clr-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

button {
  font-family: var(--ff-sans);
  cursor: pointer;
  border: none;
  background: none;
}

/* Header */
header {
  text-align: center;
  padding: 56px 24px 48px;
  border-bottom: 1px solid var(--clr-border);
}

header h1 {
  font-family: var(--ff-serif);
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--clr-text);
}

header p {
  margin-top: 8px;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-muted);
}

/* Main */
main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 56px 24px 80px;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

/* Phase section */
.phase-section h2 {
  font-family: var(--ff-serif);
  font-size: 1.6rem;
  font-weight: 400;
  margin-bottom: 8px;
}

.subtitle {
  color: var(--clr-muted);
  font-size: 0.9rem;
  margin-bottom: 32px;
  max-width: 480px;
}

/* Phase grid */
.phase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (min-width: 560px) {
  .phase-grid { grid-template-columns: repeat(4, 1fr); }
}

/* Phase card */
.phase-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 24px 20px;
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius);
  text-align: left;
}

.phase-card:hover {
  transform: translateY(-2px);
  border-color: var(--clr-accent);
}

.phase-card.active {
  border-color: var(--clr-accent);
  background: var(--clr-tint);
}

.phase-name {
  font-family: var(--ff-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--clr-text);
  display: block;
}

.phase-days {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-muted);
  display: block;
}

.phase-focus {
  font-size: 0.8rem;
  color: var(--clr-accent);
  margin-top: 8px;
  display: block;
  font-style: italic;
  transition: color 0.2s;
}

/* Filter bar */
#filter-bar {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  overflow: hidden;
}

#phase-insight {
  padding: 20px 24px;
  background: var(--clr-tint);
  border-bottom: 1px solid var(--clr-border);
  transition: 0.3s;
}

#phase-insight .insight-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-accent);
  margin-bottom: 4px;
  transition: color 0.3s;
}

#phase-insight .insight-text {
  font-family: var(--ff-serif);
  font-size: 1rem;
  font-style: italic;
  color: var(--clr-text);
  line-height: 1.5;
}

.filter-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 20px 24px;
}

.filter-row label {
  font-size: 0.85rem;
  color: var(--clr-muted);
}

.filter-row select {
  flex: 1;
  min-width: 140px;
  padding: 9px 14px;
  background: var(--clr-bg);
  border: 1.5px solid var(--clr-border);
  border-radius: 8px;
  font-family: var(--ff-sans);
  font-size: 0.875rem;
  color: var(--clr-text);
  cursor: pointer;
  appearance: none;
}

.filter-row select:focus {
  outline: none;
  border-color: var(--clr-accent);
}

#btn-search {
  padding: 9px 28px;
  background: var(--clr-accent);
  color: #fff;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: opacity 0.2s, transform 0.15s;
  white-space: nowrap;
}

#btn-search:hover { opacity: 0.88; transform: translateY(-1px); }
#btn-search:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* Results panel */
#loading-state,
#empty-state,
#error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 64px 24px;
  text-align: center;
  color: var(--clr-muted);
  font-size: 0.9rem;
}

/* Spinner */
.spinner {
  width: 32px;
  height: 32px;
  border: 2px solid var(--clr-border);
  border-top-color: var(--clr-accent);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
  transition: border-top-color 0.3s;
}

@keyframes spin { to { transform: rotate(360deg); } }

#btn-retry {
  padding: 8px 24px;
  border: 1.5px solid var(--clr-border);
  border-radius: 8px;
  font-size: 0.875rem;
  color: var(--clr-text);
  transition: border-color 0.2s;
}

#btn-retry:hover { border-color: var(--clr-accent); }

/* Recipe grid */
#recipe-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

/* Recipe card */
.recipe-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s, box-shadow 0.2s;
  animation: fadeUp 0.35s ease both;
}

.recipe-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.07);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Stagger cards */
.recipe-card:nth-child(1)  { animation-delay: 0.04s; }
.recipe-card:nth-child(2)  { animation-delay: 0.08s; }
.recipe-card:nth-child(3)  { animation-delay: 0.12s; }
.recipe-card:nth-child(4)  { animation-delay: 0.16s; }
.recipe-card:nth-child(5)  { animation-delay: 0.20s; }
.recipe-card:nth-child(6)  { animation-delay: 0.24s; }
.recipe-card:nth-child(7)  { animation-delay: 0.28s; }
.recipe-card:nth-child(8)  { animation-delay: 0.32s; }
.recipe-card:nth-child(9)  { animation-delay: 0.36s; }
.recipe-card:nth-child(10) { animation-delay: 0.40s; }
.recipe-card:nth-child(11) { animation-delay: 0.44s; }
.recipe-card:nth-child(12) { animation-delay: 0.48s; }

.card-img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  background: var(--clr-tint);
  display: block;
  transition: transform 0.3s;
}

.recipe-card:hover .card-img { transform: scale(1.03); }

.card-img-wrap {
  overflow: hidden;
  position: relative;
}

.card-badge {
  position: absolute;
  bottom: 10px;
  left: 10px;
  padding: 4px 10px;
  background: rgba(255,255,255,0.92);
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--clr-accent);
  letter-spacing: 0.03em;
  backdrop-filter: blur(4px);
  transition: color 0.3s;
}

.card-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.card-title {
  font-family: var(--ff-serif);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--clr-text);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-link {
  margin-top: auto;
  display: block;
  text-align: center;
  padding: 8px;
  border: 1.5px solid var(--clr-border);
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--clr-text);
  transition: border-color 0.2s, color 0.2s;
}

.card-link:hover {
  border-color: var(--clr-accent);
  background: var(--clr-accent);
  color: #fff;
  text-decoration: none;
}

/* Footer */
footer {
  text-align: center;
  padding: 24px;
  border-top: 1px solid var(--clr-border);
  font-size: 0.8rem;
  color: var(--clr-muted);
}

/* Mobile */
@media (max-width: 480px) {
  .filter-row { flex-direction: column; align-items: stretch; }
  #btn-search { text-align: center; }
}

/* Focus */
:focus-visible { outline: 2px solid var(--clr-accent); outline-offset: 3px; border-radius: 4px; }