/* ============================================
   OASIS DESIGN SYSTEM - Shared Styles
   A mental health platform that feels like a warm hug.
   ============================================ */

/* --- Design Tokens --- */
:root {
  /* Primary palette - calming, warm, approachable */
  --oasis-bg: #f7f8fa;
  --oasis-surface: #ffffff;
  --oasis-surface-hover: #f0f2f5;
  --oasis-border: #e8eaed;
  --oasis-border-light: #f0f1f3;

  /* Text */
  --oasis-text: #1a1d21;
  --oasis-text-secondary: #5f6368;
  --oasis-text-tertiary: #9aa0a6;
  --oasis-text-inverse: #ffffff;

  /* Accent - soft teal */
  --oasis-accent: #2a9d8f;
  --oasis-accent-light: #e6f5f3;
  --oasis-accent-hover: #238b7e;
  --oasis-accent-glow: rgba(42, 157, 143, 0.15);

  /* Category colors — single source of truth for all dashboards */
  --cat-wellness: #5b8def;
  --cat-creative: #f4a261;
  --cat-fitness: #e76f51;
  --cat-growth: #57cc99;
  --cat-community: #9b72cf;
  --cat-immersive: #e07aaf;
  --cat-sleep: #7c5cfc;

  /* Per-section accent aliases (dashboards should reference these) */
  --wellness-accent: var(--cat-wellness);
  --creative-accent: var(--cat-creative);
  --fitness-accent: var(--cat-fitness);
  --growth-accent: var(--cat-growth);
  --community-accent: var(--cat-community);
  --immersive-accent: var(--cat-immersive);
  --sleep-accent: var(--cat-sleep);

  /* Semantic */
  --oasis-success: #57cc99;
  --oasis-warning: #f4a261;
  --oasis-danger: #e76f51;
  --oasis-info: #5b8def;

  /* Shadows - soft, layered */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.05), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.06), 0 4px 10px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 40px rgba(0,0,0,0.08), 0 8px 16px rgba(0,0,0,0.04);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Spacing scale */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Transitions */
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 150ms var(--ease-out);
  --transition-base: 250ms var(--ease-out);
  --transition-slow: 400ms var(--ease-out);

  /* Nav */
  --nav-height: 64px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--oasis-bg);
  color: var(--oasis-text);
  line-height: 1.6;
  min-height: 100vh;
}

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

a:hover {
  color: var(--oasis-accent-hover);
}

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

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

input, textarea, select {
  font-family: var(--font-sans);
  font-size: inherit;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,0.15);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0,0,0,0.25);
}

/* --- Top Navigation Bar --- */
.oasis-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--oasis-border-light);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
  transition: box-shadow var(--transition-base);
}

.oasis-nav.scrolled {
  box-shadow: var(--shadow-sm);
}

.oasis-nav__left {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.oasis-nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--oasis-text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.oasis-nav__brand svg {
  width: 28px;
  height: 28px;
}

.oasis-nav__back {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  color: var(--oasis-text-secondary);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.oasis-nav__back:hover {
  background: var(--oasis-surface-hover);
  color: var(--oasis-text);
}

.oasis-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-left: var(--space-md);
}

.oasis-nav__link {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--oasis-text-secondary);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.oasis-nav__link:hover {
  background: var(--oasis-surface-hover);
  color: var(--oasis-text);
}

.oasis-nav__link.active {
  background: var(--oasis-accent-light);
  color: var(--oasis-accent);
}

.oasis-nav__center {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.oasis-nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.oasis-nav__icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  color: var(--oasis-text-secondary);
  transition: all var(--transition-fast);
  position: relative;
}

.oasis-nav__icon-btn:hover {
  background: var(--oasis-surface-hover);
  color: var(--oasis-text);
}

.oasis-nav__icon-btn svg {
  width: 20px;
  height: 20px;
}

/* --- Page Layout --- */
.oasis-page {
  padding-top: var(--nav-height);
  min-height: 100vh;
}

.oasis-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

.oasis-container--narrow {
  max-width: 800px;
}

.oasis-container--wide {
  max-width: 1400px;
}

/* --- Typography --- */
.oasis-h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--oasis-text);
}

.oasis-h2 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--oasis-text);
}

.oasis-h3 {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.4;
  color: var(--oasis-text);
}

.oasis-subtitle {
  font-size: 1rem;
  color: var(--oasis-text-secondary);
  line-height: 1.6;
  max-width: 600px;
}

.oasis-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--oasis-text-tertiary);
}

/* --- Card System --- */
.oasis-card {
  background: var(--oasis-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--oasis-border-light);
  padding: var(--space-lg);
  transition: all var(--transition-base);
}

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

.oasis-card--interactive {
  cursor: pointer;
}

.oasis-card--interactive:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.oasis-card--accent {
  border-left: 3px solid var(--oasis-accent);
}

/* --- Buttons --- */
.oasis-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
  white-space: nowrap;
  line-height: 1.4;
}

.oasis-btn--primary {
  background: var(--oasis-accent);
  color: var(--oasis-text-inverse);
  box-shadow: 0 1px 3px rgba(42, 157, 143, 0.3);
}

.oasis-btn--primary:hover {
  background: var(--oasis-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(42, 157, 143, 0.3);
}

.oasis-btn--secondary {
  background: var(--oasis-surface);
  color: var(--oasis-text);
  border: 1px solid var(--oasis-border);
}

.oasis-btn--secondary:hover {
  background: var(--oasis-surface-hover);
  border-color: var(--oasis-text-tertiary);
}

.oasis-btn--ghost {
  background: transparent;
  color: var(--oasis-text-secondary);
}

.oasis-btn--ghost:hover {
  background: var(--oasis-surface-hover);
  color: var(--oasis-text);
}

.oasis-btn--danger {
  background: var(--oasis-danger);
  color: var(--oasis-text-inverse);
}

.oasis-btn--danger:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.oasis-btn--sm {
  padding: 6px 12px;
  font-size: 0.8125rem;
}

.oasis-btn--lg {
  padding: 14px 28px;
  font-size: 1rem;
  border-radius: var(--radius-md);
}

.oasis-btn--icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-sm);
}

.oasis-btn--icon svg {
  width: 18px;
  height: 18px;
}

/* --- Badge / Chip --- */
.oasis-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--oasis-surface-hover);
  color: var(--oasis-text-secondary);
}

.oasis-badge--accent {
  background: var(--oasis-accent-light);
  color: var(--oasis-accent);
}

/* --- Input Fields --- */
.oasis-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--oasis-border);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  color: var(--oasis-text);
  background: var(--oasis-surface);
  transition: all var(--transition-fast);
  outline: none;
}

.oasis-input:focus {
  border-color: var(--oasis-accent);
  box-shadow: 0 0 0 3px var(--oasis-accent-glow);
}

.oasis-input::placeholder {
  color: var(--oasis-text-tertiary);
}

.oasis-textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--oasis-border);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  color: var(--oasis-text);
  background: var(--oasis-surface);
  transition: all var(--transition-fast);
  outline: none;
  resize: vertical;
  min-height: 100px;
  line-height: 1.6;
}

.oasis-textarea:focus {
  border-color: var(--oasis-accent);
  box-shadow: 0 0 0 3px var(--oasis-accent-glow);
}

/* --- Grid Layouts --- */
.oasis-grid {
  display: grid;
  gap: var(--space-md);
}

.oasis-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.oasis-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.oasis-grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

.oasis-grid--auto {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

@media (max-width: 768px) {
  .oasis-grid--2,
  .oasis-grid--3,
  .oasis-grid--4 {
    grid-template-columns: 1fr;
  }
}

/* --- Toast / Notification --- */
.oasis-toast {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  background: var(--oasis-text);
  color: var(--oasis-text-inverse);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 10000;
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.oasis-toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* --- Modal --- */
.oasis-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(4px);
  z-index: 5000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.oasis-modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.oasis-modal {
  background: var(--oasis-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  max-width: 520px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95) translateY(10px);
  transition: transform var(--transition-base);
}

.oasis-modal-overlay.active .oasis-modal {
  transform: scale(1) translateY(0);
}

.oasis-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.oasis-modal__title {
  font-size: 1.25rem;
  font-weight: 600;
}

.oasis-modal__close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--oasis-text-tertiary);
  transition: all var(--transition-fast);
}

.oasis-modal__close:hover {
  background: var(--oasis-surface-hover);
  color: var(--oasis-text);
}

/* --- Empty State --- */
.oasis-empty {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
  color: var(--oasis-text-tertiary);
}

.oasis-empty__icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.6;
}

.oasis-empty__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--oasis-text-secondary);
  margin-bottom: var(--space-sm);
}

.oasis-empty__text {
  font-size: 0.875rem;
  max-width: 320px;
  margin: 0 auto;
}

/* --- Divider --- */
.oasis-divider {
  border: none;
  height: 1px;
  background: var(--oasis-border-light);
  margin: var(--space-lg) 0;
}

/* --- Animations --- */
@keyframes oasis-fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes oasis-scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes oasis-slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes oasis-breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.03); }
}

@keyframes oasis-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

@keyframes oasis-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.animate-fadeIn {
  animation: oasis-fadeIn 0.4s var(--ease-out) both;
}

.animate-scaleIn {
  animation: oasis-scaleIn 0.3s var(--ease-out) both;
}

.animate-slideUp {
  animation: oasis-slideUp 0.5s var(--ease-out) both;
}

/* Staggered children animation */
.stagger-children > * {
  animation: oasis-fadeIn 0.4s var(--ease-out) both;
}

.stagger-children > *:nth-child(1) { animation-delay: 0ms; }
.stagger-children > *:nth-child(2) { animation-delay: 50ms; }
.stagger-children > *:nth-child(3) { animation-delay: 100ms; }
.stagger-children > *:nth-child(4) { animation-delay: 150ms; }
.stagger-children > *:nth-child(5) { animation-delay: 200ms; }
.stagger-children > *:nth-child(6) { animation-delay: 250ms; }
.stagger-children > *:nth-child(7) { animation-delay: 300ms; }
.stagger-children > *:nth-child(8) { animation-delay: 350ms; }

/* --- Category Color Utilities --- */
.cat-wellness { --cat-color: var(--cat-wellness); }
.cat-creative { --cat-color: var(--cat-creative); }
.cat-fitness { --cat-color: var(--cat-fitness); }
.cat-growth { --cat-color: var(--cat-growth); }
.cat-community { --cat-color: var(--cat-community); }
.cat-immersive { --cat-color: var(--cat-immersive); }

/* --- Utility Classes --- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.w-full { width: 100%; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* --- Responsive --- */
@media (max-width: 768px) {
  :root {
    --nav-height: 56px;
  }

  .oasis-nav__links {
    display: none;
  }

  .oasis-container {
    padding: var(--space-md);
  }

  .oasis-h1 {
    font-size: 1.625rem;
  }

  .oasis-h2 {
    font-size: 1.25rem;
  }
}

/* ============================================
   MOBILE OVERFLOW PREVENTION
   Global fixes for horizontal scroll issues
   ============================================ */

/* Prevent any horizontal overflow at root level */
html, body {
  overflow-x: hidden;
  max-width: 100vw;
}

/* Ensure all direct children respect viewport */
body > * {
  max-width: 100vw;
}

@media (max-width: 768px) {
  /* --- Force all grids to single column on mobile --- */
  .oasis-grid--2,
  .oasis-grid--3,
  .oasis-grid--4,
  .oasis-grid--auto {
    grid-template-columns: 1fr !important;
  }

  /* --- Enforce flex-wrap on all flex containers --- */
  .flex,
  [style*="display: flex"],
  [style*="display:flex"] {
    flex-wrap: wrap !important;
  }

  /* --- Cap widths of elements with inline fixed widths --- */
  [style*="width: 900px"],
  [style*="width: 800px"],
  [style*="width: 680px"],
  [style*="width: 600px"],
  [style*="width: 560px"],
  [style*="width: 500px"],
  [style*="width: 440px"],
  [style*="width: 400px"],
  [style*="width:900px"],
  [style*="width:800px"],
  [style*="width:680px"],
  [style*="width:600px"],
  [style*="width:560px"],
  [style*="width:500px"],
  [style*="width:440px"],
  [style*="width:400px"] {
    max-width: 100% !important;
    width: 100% !important;
  }

  /* --- Override fixed-width grid columns --- */
  [style*="grid-template-columns: 280px"],
  [style*="grid-template-columns: 260px"],
  [style*="grid-template-columns: 320px"],
  [style*="grid-template-columns: 300px"],
  [style*="grid-template-columns:280px"],
  [style*="grid-template-columns:260px"],
  [style*="grid-template-columns:320px"],
  [style*="grid-template-columns:300px"] {
    grid-template-columns: 1fr !important;
  }

  /* --- Override multi-column repeat grids --- */
  [style*="repeat(4, 1fr)"],
  [style*="repeat(3, 1fr)"],
  [style*="repeat(12, 1fr)"] {
    grid-template-columns: 1fr !important;
  }

  /* --- Reduce minmax grids to fit small screens --- */
  [style*="minmax(280px"],
  [style*="minmax(300px"],
  [style*="minmax(320px"],
  [style*="minmax(340px"] {
    grid-template-columns: 1fr !important;
  }

  /* --- Prevent min-width from breaking layout --- */
  [style*="min-width: 250px"],
  [style*="min-width: 280px"],
  [style*="min-width: 300px"],
  [style*="min-width: 320px"],
  [style*="min-width:250px"],
  [style*="min-width:280px"],
  [style*="min-width:300px"],
  [style*="min-width:320px"] {
    min-width: 0 !important;
  }

  /* --- Tables: wrap in scrollable container --- */
  table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
  }

  /* --- Modals: full-width on mobile --- */
  .oasis-modal {
    width: 95% !important;
    max-width: 95vw !important;
    padding: var(--space-md) !important;
  }

  /* --- Toast: don't overflow right edge --- */
  .oasis-toast {
    right: var(--space-md);
    left: var(--space-md);
    max-width: calc(100vw - 32px);
  }

  /* --- Cards: prevent overflow --- */
  .oasis-card {
    max-width: 100%;
    overflow: hidden;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  /* --- Images and media --- */
  img, video, canvas, svg, iframe {
    max-width: 100% !important;
    height: auto;
  }

  /* --- Prevent long words/URLs from causing overflow --- */
  * {
    word-break: break-word;
  }

  /* --- Pre/code blocks --- */
  pre, code {
    max-width: 100%;
    overflow-x: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
  }
}