/* ==========================================================================
   @Abhishektrains Design System & Tokens
   Theme: MyFitnessPal-Inspired (Clean, Crisp, Trustworthy Light Fitness-Tech)
   Colors: Iconic Electric Blue (#0066EE), Clean White (#FFFFFF), Deep Slate (#0F172A)
   Typography: Sora (Headings & Numbers), Inter (Body & UI)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Sora:wght@400;600;700;800&display=swap');

:root {
  /* MFP Signature & Elevated Light Palette */
  --bg-dark: #f8fafc;
  --bg-page: #f8fafc;
  --bg-page-tint: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-card-subtle: #f1f5f9;
  --bg-input: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.88);
  --bg-dark-contrast: #0f172a;
  --bg-darker: #090e17;

  /* Crisp Borders */
  --border-color: #e2e8f0;
  --border-light: #cbd5e1;
  --border-hover: #94a3b8;
  --border-focus: #0066ee;

  /* Brand Accents (Iconic MFP Electric Blue + Athletic Emerald) */
  --brand-blue: #0066ee;
  --brand-blue-hover: #0050cc;
  --brand-blue-light: #eff6ff;
  --brand-blue-glow: rgba(0, 102, 238, 0.18);
  --accent-emerald: #10b981;
  --accent-emerald-hover: #059669;
  --accent-emerald-glow: rgba(16, 185, 129, 0.18);
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;

  /* Nutrition Color Coding (MFP Signature Palette) */
  --macro-protein: #0066ee;
  --macro-protein-bg: #eff6ff;
  --macro-carbs: #f59e0b;
  --macro-carbs-bg: #fffbeb;
  --macro-fat: #f43f5e;
  --macro-fat-bg: #fff1f2;

  /* Typography */
  --font-heading: 'Sora', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-numbers: 'Sora', -apple-system, sans-serif;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;
  --text-inverse: #ffffff;

  /* Elevation & Shadows */
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 0 35px var(--brand-blue-glow);

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Micro-interactions */
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Defaults */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: var(--scroll-padding-top, 88px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.65;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  min-height: 100vh;
  padding-top: var(--topbar-height, 72px);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
  /* Ambient soft fitness-tech light background */
  background-image: 
    radial-gradient(circle at 12% 8%, rgba(0, 102, 238, 0.04) 0%, transparent 45%),
    radial-gradient(circle at 88% 25%, rgba(16, 185, 129, 0.035) 0%, transparent 40%),
    radial-gradient(circle at 50% 75%, rgba(0, 102, 238, 0.03) 0%, transparent 50%);
  background-attachment: fixed;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.3rem, 5vw, 3.8rem); letter-spacing: -0.035em; color: #0b1324; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); letter-spacing: -0.025em; color: #0b1324; }
h3 { font-size: clamp(1.3rem, 2.4vw, 1.75rem); }
h4 { font-size: 1.12rem; font-weight: 600; }

/* Dedicated Numbers Style */
.num, .number, .res-num-big, .mock-stat-num, .stat-number, .cal-num, .cal-number-input, .macro-val, .macro-card-grams, .price-main {
  font-family: var(--font-numbers) !important;
  font-weight: 700 !important;
  font-feature-settings: "tnum" 1, "lnum" 1;
}

p {
  color: var(--text-muted);
  font-size: 1rem;
  font-weight: 400;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img, svg {
  display: block;
  max-width: 100%;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section-wrapper, section[id] {
  scroll-margin-top: var(--scroll-padding-top, 88px);
}

.section-wrapper {
  padding: 96px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--brand-blue-light);
  color: var(--brand-blue);
  border: 1px solid rgba(0, 102, 238, 0.2);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}

.section-title {
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Subtle Scroll Animations */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
  position: relative;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn-primary {
  background: var(--brand-blue);
  color: #ffffff;
  box-shadow: 0 4px 16px var(--brand-blue-glow);
  font-weight: 700;
}

.btn-primary:hover {
  background: var(--brand-blue-hover);
  box-shadow: 0 6px 24px rgba(0, 102, 238, 0.3);
  color: #ffffff;
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: var(--border-hover);
  color: var(--brand-blue);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--brand-blue);
  color: var(--brand-blue);
  background: var(--brand-blue-light);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-block {
  width: 100%;
}

/* Badges & Pills */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-body);
  white-space: nowrap;
}

.badge-accent {
  background: var(--brand-blue-light);
  color: var(--brand-blue);
  border: 1px solid rgba(0, 102, 238, 0.25);
}

.badge-neutral {
  background: #f1f5f9;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.badge-veg {
  background: #ecfdf5;
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-egg {
  background: #fffbeb;
  color: #d97706;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-nonveg {
  background: #fff1f2;
  color: #e11d48;
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.badge-vegan {
  background: #ecfeff;
  color: #0891b2;
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.badge-success {
  background: #ecfdf5;
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
}

.form-hint {
  display: block;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 6px;
}

.form-input, .form-select, .custom-select {
  width: 100%;
  padding: 14px 18px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.02);
}

.form-input:focus, .form-select:focus, .custom-select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(0, 102, 238, 0.15);
  background-color: #ffffff;
}

.form-row {
  display: flex;
  gap: 18px;
}

.col-half {
  flex: 1;
}

/* Card Primitive (Crisp Elevated White SaaS Cards) */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

/* Pill / Tag Buttons */
.pill-group, .tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 14px 20px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text-main);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.pill-btn:hover {
  border-color: var(--brand-blue);
  transform: translateY(-2px);
}

.pill-btn.active {
  background: var(--brand-blue-light);
  border-color: var(--brand-blue);
  box-shadow: 0 4px 14px rgba(0, 102, 238, 0.15);
}

.pill-btn-label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}

.pill-btn.active .pill-btn-label {
  color: var(--brand-blue);
}

.pill-btn-sub {
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-top: 3px;
}

.tag-btn {
  padding: 10px 20px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.tag-btn:hover {
  color: var(--text-main);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.tag-btn.active {
  background: var(--brand-blue);
  color: #ffffff;
  border-color: var(--brand-blue);
  box-shadow: 0 4px 14px rgba(0, 102, 238, 0.25);
}

/* Empty State Card */
.empty-state-card {
  text-align: center;
  padding: 60px 24px;
  background: #ffffff;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-xl);
}

.empty-icon {
  font-size: 2.8rem;
  margin-bottom: 16px;
}

/* Toast System */
#toast-container {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: #ffffff;
  color: #0f172a;
  border: 1px solid var(--border-color);
  padding: 14px 22px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.92rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: toastSlideIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast.success { border-left: 4px solid var(--brand-blue); }
.toast.info { border-left: 4px solid var(--brand-blue); }
.toast.warning { border-left: 4px solid var(--accent-amber); }

@keyframes toastSlideIn {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Utilities */
.col-span-full { grid-column: 1 / -1; }
.text-emerald { color: var(--brand-blue); }
.protein-text { color: var(--macro-protein) !important; }
.text-center { text-align: center; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 28px; }
.mb-4 { margin-bottom: 16px; }

/* Responsive Visibility Helpers */
@media (max-width: 1024px) {
  .desktop-only {
    display: none !important;
  }
  .mobile-only {
    display: flex !important;
  }
}

@media (min-width: 1025px) {
  .mobile-only {
    display: none !important;
  }
}