/* ========================================
   FitPlan — Fitness Web App Styles
   ======================================== */

:root {
  --bg: #0a0a0f;
  --bg-card: #13131a;
  --bg-card-hover: #1a1a25;
  --text: #e8e8ed;
  --text-muted: #8888a0;
  --border: #22223a;
  --red: #ef4444;
  --red-glow: #ef444440;
  --purple: #a855f7;
  --purple-glow: #a855f740;
  --green: #22c55e;
  --green-glow: #22c55e40;
  --blue: #3b82f6;
  --blue-glow: #3b82f640;
  --orange: #f97316;
  --orange-glow: #f9731640;
  --radius: 16px;
  --radius-sm: 10px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ---- Hero ---- */
.hero {
  position: relative;
  padding: 3rem 1.5rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, #0f0f1a 0%, #1a0a2e 50%, #0a0f1a 100%);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, var(--purple-glow) 0%, transparent 50%),
              radial-gradient(circle at 70% 50%, var(--blue-glow) 0%, transparent 50%);
  animation: heroPulse 8s ease-in-out infinite alternate;
}

@keyframes heroPulse {
  0% { opacity: 0.5; transform: scale(1); }
  100% { opacity: 1; transform: scale(1.05); }
}

.hero-content {
  position: relative;
  z-index: 1;
}

.logo {
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: -2px;
}

.logo-accent {
  background: linear-gradient(135deg, var(--purple), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-top: 0.25rem;
  font-weight: 400;
}

/* ---- Streak Badge ---- */
.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
  padding: 0.6rem 1.2rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  user-select: none;
}

.streak-badge:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--orange);
  box-shadow: 0 0 20px var(--orange-glow);
}

.streak-badge.logged {
  border-color: var(--green);
  box-shadow: 0 0 20px var(--green-glow);
}

.streak-flame {
  font-size: 1.3rem;
}

.streak-count {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--orange), #facc15);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.streak-label {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
}

/* ---- Day Navigation ---- */
.day-nav {
  display: flex;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}

.day-nav::-webkit-scrollbar { display: none; }

.day-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  padding: 0.75rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
  flex-shrink: 0;
  color: var(--text);
  font-family: inherit;
}

.day-tab:hover {
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.day-tab.active {
  border-color: currentColor;
  transform: translateY(-2px);
}

.day-tab[data-day="tuesday"].active { border-color: var(--red); box-shadow: 0 4px 20px var(--red-glow); }
.day-tab[data-day="thursday"].active { border-color: var(--purple); box-shadow: 0 4px 20px var(--purple-glow); }
.day-tab[data-day="saturday"].active { border-color: var(--green); box-shadow: 0 4px 20px var(--green-glow); }
.day-tab[data-day="sunday"].active { border-color: var(--blue); box-shadow: 0 4px 20px var(--blue-glow); }
.day-tab[data-day="meals"].active { border-color: var(--orange); box-shadow: 0 4px 20px var(--orange-glow); }

.day-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.dot-red { background: var(--red); }
.dot-purple { background: var(--purple); }
.dot-green { background: var(--green); }
.dot-blue { background: var(--blue); }
.dot-orange { background: var(--orange); }

.day-name {
  font-weight: 700;
  font-size: 0.85rem;
}

.day-focus {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* ---- Content ---- */
.content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* ---- Day Section ---- */
.day-section {
  display: none;
  animation: fadeIn 0.4s ease;
}

.day-section.active {
  display: block;
}

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

/* ---- Day Header ---- */
.day-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2rem 2.5rem;
  border-radius: var(--radius);
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.day-header::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.1;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(255,255,255,0.03) 10px,
    rgba(255,255,255,0.03) 20px
  );
}

.day-header-red {
  background: linear-gradient(135deg, #1a0505 0%, #2a0808 50%, #1a0505 100%);
  border: 1px solid var(--red);
  box-shadow: 0 0 40px var(--red-glow), inset 0 0 40px rgba(239,68,68,0.05);
}

.day-header-purple {
  background: linear-gradient(135deg, #0f0520 0%, #1a0830 50%, #0f0520 100%);
  border: 1px solid var(--purple);
  box-shadow: 0 0 40px var(--purple-glow), inset 0 0 40px rgba(168,85,247,0.05);
}

.day-header-green {
  background: linear-gradient(135deg, #031a0a 0%, #052a10 50%, #031a0a 100%);
  border: 1px solid var(--green);
  box-shadow: 0 0 40px var(--green-glow), inset 0 0 40px rgba(34,197,94,0.05);
}

.day-header-blue {
  background: linear-gradient(135deg, #050a1a 0%, #08102a 50%, #050a1a 100%);
  border: 1px solid var(--blue);
  box-shadow: 0 0 40px var(--blue-glow), inset 0 0 40px rgba(59,130,246,0.05);
}

.day-header-orange {
  background: linear-gradient(135deg, #1a0a02 0%, #2a1005 50%, #1a0a02 100%);
  border: 1px solid var(--orange);
  box-shadow: 0 0 40px var(--orange-glow), inset 0 0 40px rgba(249,115,22,0.05);
}

.day-header-content {
  position: relative;
  z-index: 1;
}

.day-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
  background: rgba(255,255,255,0.1);
  color: var(--text);
}

.day-header h2 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.day-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

.muscle-icon {
  font-size: 4rem;
  position: relative;
  z-index: 1;
  filter: grayscale(0.2);
}

/* ---- Exercise Grid ---- */
.exercise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

/* ---- Exercise Card ---- */
.exercise-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s ease;
}

.exercise-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

/* Color-code card borders on hover by parent section */
#day-tuesday .exercise-card:hover { border-color: var(--red); box-shadow: 0 12px 40px var(--red-glow); }
#day-thursday .exercise-card:hover { border-color: var(--purple); box-shadow: 0 12px 40px var(--purple-glow); }
#day-saturday .exercise-card:hover { border-color: var(--green); box-shadow: 0 12px 40px var(--green-glow); }
#day-sunday .exercise-card:hover { border-color: var(--blue); box-shadow: 0 12px 40px var(--blue-glow); }

.card-img-wrap {
  position: relative;
  background: linear-gradient(135deg, #1a1a2e 0%, #0d0d1a 100%);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}

.card-img-wrap img {
  max-width: 100%;
  max-height: 180px;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
  transition: transform 0.3s ease;
}

.exercise-card:hover .card-img-wrap img {
  transform: scale(1.05);
}

.card-body {
  padding: 1.25rem;
}

.card-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.card-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  background: rgba(255,255,255,0.08);
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

#day-tuesday .card-tag { background: var(--red-glow); color: var(--red); }
#day-thursday .card-tag { background: var(--purple-glow); color: var(--purple); }
#day-saturday .card-tag { background: var(--green-glow); color: var(--green); }
#day-sunday .card-tag { background: var(--blue-glow); color: var(--blue); }

.card-target {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---- Meal Plan ---- */
.meals-wrap {
  padding: 0;
}

.meal-day-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.meal-dt {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  transition: all 0.2s;
  font-family: inherit;
}

.meal-dt.active {
  background: #1D9E75;
  color: #E1F5EE;
  border-color: #0F6E56;
}

.meal-dt:hover:not(.active) {
  background: var(--bg-card-hover);
}

.meal-macro-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.meal-mc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  text-align: center;
}

.meal-mc-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.25rem;
}

.meal-mc-val {
  font-size: 1.4rem;
  font-weight: 700;
}

.meal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1rem;
  transition: border-color 0.3s;
}

.meal-card:hover {
  border-color: var(--orange);
}

.meal-card-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.meal-num-badge {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255,255,255,0.06);
  border-radius: 20px;
  padding: 2px 8px;
}

.meal-type-badge {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  white-space: nowrap;
}

.meal-card-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.meal-loc-badge {
  font-size: 0.6rem;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
}

.meal-card-time {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-left: auto;
  white-space: nowrap;
}

.meal-card-body {
  padding: 0.85rem 1.15rem;
}

.meal-item-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  gap: 0.75rem;
}

.meal-item-row:last-child {
  border-bottom: none;
}

.meal-item-left {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  flex: 1;
}

.meal-item-tag {
  font-size: 0.6rem;
  padding: 2px 6px;
  border-radius: 6px;
  font-weight: 600;
  flex-shrink: 0;
  margin-top: 2px;
  white-space: nowrap;
}

.mt-food { background: rgba(59,109,17,0.2); color: #7ac63e; }
.mt-supp { background: rgba(83,74,183,0.2); color: #a89cf7; }
.mt-jp { background: rgba(114,36,62,0.2); color: #e87a9e; }
.mt-opt { background: rgba(24,95,165,0.2); color: #5ba4e8; }
.mt-home { background: rgba(133,79,11,0.2); color: #d4a54a; }

.meal-item-name {
  font-size: 0.82rem;
  color: var(--text);
  line-height: 1.4;
}

.meal-item-note {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.meal-item-macros {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 1px;
  flex-shrink: 0;
}

.meal-item-macros .mp { font-size: 0.72rem; color: #1D9E75; font-weight: 600; }
.meal-item-macros .mf { font-size: 0.72rem; color: #D85A30; font-weight: 600; }
.meal-item-macros .mc { font-size: 0.72rem; color: #378ADD; font-weight: 600; }

.meal-totals-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.meal-chip {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
}

.meal-tip {
  margin-top: 0.65rem;
  background: rgba(29,158,117,0.08);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  border-left: 3px solid #1D9E75;
  line-height: 1.5;
}

.meal-home-box {
  margin-top: 0.5rem;
  background: rgba(186,117,23,0.1);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  font-size: 0.75rem;
  color: #d4a54a;
  border-left: 3px solid #BA7517;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .meal-macro-strip { grid-template-columns: repeat(2, 1fr); }
  .meal-card-head { gap: 0.4rem; }
  .meal-card-time { margin-left: 0; width: 100%; margin-top: 0.25rem; }
}

/* ---- Footer ---- */
.footer {
  text-align: center;
  padding: 2rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
  margin-top: 3rem;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .hero { padding: 2rem 1rem 1.5rem; }
  .logo { font-size: 2.25rem; }
  .tagline { font-size: 0.95rem; }

  .day-nav { padding: 0.75rem 1rem; gap: 0.4rem; }
  .day-tab { padding: 0.5rem 0.85rem; }
  .day-name { font-size: 0.75rem; }
  .day-focus { font-size: 0.6rem; }

  .content { padding: 1rem; }

  .day-header {
    padding: 1.5rem;
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
  .day-header h2 { font-size: 1.5rem; }
  .muscle-icon { font-size: 3rem; }

  .exercise-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .card-img-wrap {
    padding: 1rem;
    min-height: 160px;
  }
  .card-img-wrap img { max-height: 140px; }
}

@media (max-width: 480px) {
  .logo { font-size: 1.8rem; }
  .day-tab { padding: 0.4rem 0.65rem; }
  .exercise-grid { grid-template-columns: 1fr; }
}