@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --brand-gradient: linear-gradient(135deg, #16a34a, #15803d);
  --brand-color: #16a34a;
  --brand-hover: #15803d;
  --surface: #ffffff;
  --surface-secondary: #f8fafc;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --transition: 0.2s ease;
}

[data-bs-theme="dark"] {
  --surface: #0f172a;
  --surface-secondary: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border-color: #334155;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.4);
}

html, body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--surface-secondary);
  color: var(--text-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ── Animations ──────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.05); }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-12px); }
  to   { opacity: 1; transform: translateX(0); }
}

.animate-in {
  animation: fadeInUp 0.4s ease forwards;
}
.animate-in:nth-child(1) { animation-delay: 0.05s; }
.animate-in:nth-child(2) { animation-delay: 0.1s; }
.animate-in:nth-child(3) { animation-delay: 0.15s; }
.animate-in:nth-child(4) { animation-delay: 0.2s; }
.animate-in:nth-child(5) { animation-delay: 0.25s; }

.fade-in { animation: fadeIn 0.3s ease; }

/* ── Cards ───────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card-header {
  background: transparent;
  border-bottom: 1px solid var(--border-color);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
}

/* ── Buttons ─────────────────────────────────── */
.btn-primary {
  background: var(--brand-gradient);
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(22, 163, 74, 0.3);
}
.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(22, 163, 74, 0.4);
}
.btn-primary:active {
  transform: translateY(0);
}

.btn-outline-primary {
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: all var(--transition);
  border-color: var(--brand-color);
  color: var(--brand-color);
}
.btn-outline-primary:hover {
  background: var(--brand-color);
  color: white;
}

/* ── Inputs ──────────────────────────────────── */
.form-control, .form-select {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--surface);
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus, .form-select:focus {
  border-color: var(--brand-color);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.15);
}

/* ── Progress ────────────────────────────────── */
.progress {
  border-radius: 100px;
  background: var(--border-color);
}
.progress-bar {
  border-radius: 100px;
  background: var(--brand-gradient);
  transition: width 0.6s ease;
}

/* ── Badges ──────────────────────────────────── */
.badge {
  border-radius: 100px;
  font-weight: 500;
  padding: 0.35em 0.75em;
}

/* ── Macro cards ─────────────────────────────── */
.macro-card {
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  transition: all var(--transition);
}
.macro-card:hover {
  border-color: var(--brand-color);
  box-shadow: var(--shadow-md);
}
.macro-card .macro-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--brand-color);
}
.macro-card .macro-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Streak / achievements ───────────────────── */
.streak-fire {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.875rem;
}
.streak-fire.pulse { animation: pulse 2s infinite; }

.achievement-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.1rem;
}
.achievement-unlocked {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  color: white;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.4);
}
.achievement-locked {
  background: var(--border-color);
  color: var(--text-secondary);
  opacity: 0.5;
}

/* ── Glass card (landing) ────────────────────── */
.glass-card {
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}
[data-bs-theme="dark"] .glass-card {
  background: rgba(15, 23, 42, 0.8);
  border-color: rgba(148, 163, 184, 0.1);
}

/* ── Hero gradient ───────────────────────────── */
.hero-gradient {
  background: linear-gradient(135deg, #166534 0%, #15803d 50%, #16a34a 100%);
  position: relative;
  overflow: hidden;
}
.hero-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
}
.hero-gradient::after {
  content: '';
  position: absolute;
  right: -10%;
  top: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
  border-radius: 50%;
}

/* ── Transitions on all interactive ──────────── */
a, button, .nav-link {
  transition: all var(--transition);
}

/* ── Scrollbar ───────────────────────────────── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--surface-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* ── Topbar styling ──────────────────────────── */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1030;
  backdrop-filter: blur(12px);
}
.topbar .nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
}
.topbar .nav-link:hover,
.topbar .nav-link.active {
  color: var(--brand-color);
  background: rgba(22, 163, 74, 0.08);
}
.topbar .brand {
  font-weight: 700;
  font-size: 1.25rem;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Blazor error UI ─────────────────────────── */
#blazor-error-ui {
  background: #fef2f2;
  color: #991b1b;
  border-top: 2px solid #ef4444;
}
#blazor-error-ui .dismiss { cursor: pointer; }
#blazor-error-ui .reload { color: #2563eb; }

/* ── Blazor validation ───────────────────────── */
.valid.modified:not([type=checkbox]) { outline: 1px solid #26b050; }
.invalid { outline: 1px solid red; }
.validation-message { color: red; }

/* ── Loading ─────────────────────────────────── */
.loading-progress { position: relative; display: block; width: 8rem; height: 8rem; margin: 20vh auto 0; }
.loading-progress circle { fill: none; stroke: var(--border-color); stroke-width: 0.6rem; transform-origin: 50% 50%; transform: rotate(-90deg); }
.loading-progress circle:last-child { stroke: var(--brand-color); stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%; transition: stroke-dasharray 0.05s ease-in-out; }
.loading-progress-text { position: relative; text-align: center; font-weight: bold; margin-top: 0.5rem; }
.loading-progress-text:after { content: var(--blazor-load-percentage-text, "Loading"); }

/* ── Content ─────────────────────────────────── */
.content { padding-top: 1.5rem; }

/* ── Onboarding ──────────────────────────────── */
.onboarding-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}
.onboarding-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 2rem;
  max-width: 480px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.4s ease;
}
.onboarding-step { animation: slideIn 0.3s ease; }