/* MazenOS Shared Stylesheet (shared.css)
 * High-contrast, clean dark-mode typography, components, and responsive grid layouts.
 */

:root {
  --bg-primary: #090b10;
  --bg-surface: #11151f;
  --bg-elevated: #171c29;
  --bg-hover: #1e2536;
  --border-subtle: #242c3d;
  --border-focus: #4f8cff;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-ari: #3b82f6;
  --accent-ari-soft: rgba(59, 130, 246, 0.14);
  --accent-jade: #10b981;
  --accent-jade-soft: rgba(16, 185, 129, 0.14);
  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.15);
  --warning: #f59e0b;
  --warning-soft: rgba(245, 158, 11, 0.15);
  --success: #22c55e;
  --success-soft: rgba(34, 197, 94, 0.15);
  --purple: #a855f7;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.45);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

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

html, body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Header & Navigation Bar */
.os-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.5rem;
  background: rgba(17, 21, 31, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.os-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.os-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.15s ease;
}

.os-back-link:hover {
  color: var(--text-primary);
  border-color: var(--border-focus);
  background: var(--bg-hover);
}

.os-header-meta {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.os-date-pill {
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
}

.gear-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.gear-link:hover {
  color: var(--text-primary);
  border-color: var(--border-focus);
  background: var(--bg-hover);
}

/* AI Mom Continuous Work Alert Banner */
.hydration-banner {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(90deg, rgba(16, 185, 129, 0.18), rgba(59, 130, 246, 0.18));
  border-bottom: 1px solid var(--accent-jade);
  color: var(--text-primary);
  font-size: 0.9rem;
}

.hydration-banner.active {
  display: flex;
}

/* Containers & Layout */
.os-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.5rem;
}

.os-split-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1.5rem;
  max-width: 1240px;
  margin: 0 auto;
  padding: 1.5rem;
}

@media (max-width: 820px) {
  .os-split-layout {
    grid-template-columns: 1fr;
  }
}

/* Cards & Surfaces */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Grid Systems */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.tool-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
  cursor: pointer;
}

.tool-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-focus);
  background: var(--bg-elevated);
}

.tool-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tool-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent-ari);
  color: #ffffff;
}

.btn-primary:hover {
  background: #2563eb;
}

.btn-jade {
  background: var(--accent-jade);
  color: #052e16;
}

.btn-jade:hover {
  background: #059669;
  color: #ffffff;
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--border-focus);
}

.btn-danger {
  background: var(--danger-soft);
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.35);
}

.btn-danger:hover {
  background: var(--danger);
  color: #ffffff;
}

.btn-sm {
  padding: 0.35rem 0.7rem;
  font-size: 0.8rem;
}

/* Forms & Inputs */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

label {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-secondary);
}

input[type="text"],
input[type="number"],
input[type="password"],
input[type="url"],
input[type="date"],
input[type="datetime-local"],
select,
textarea {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.92rem;
  transition: border-color 0.15s ease;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--border-focus);
}

/* Badges & Priority Pills */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-p1 { background: var(--danger-soft); color: #fca5a5; border: 1px solid rgba(239, 68, 68, 0.35); }
.badge-p2 { background: var(--warning-soft); color: #fcd34d; border: 1px solid rgba(245, 158, 11, 0.35); }
.badge-p3 { background: var(--accent-ari-soft); color: #93c5fd; border: 1px solid rgba(59, 130, 246, 0.35); }
.badge-p4 { background: rgba(148, 163, 184, 0.12); color: var(--text-secondary); border: 1px solid var(--border-subtle); }
.badge-success { background: var(--success-soft); color: #86efac; border: 1px solid rgba(34, 197, 94, 0.35); }

/* Modals / Popup Sheets */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(5, 7, 11, 0.76);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-backdrop.open {
  display: flex;
}

.modal-sheet {
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
}

/* Empty States */
.empty-state {
  text-align: center;
  padding: 2.5rem 1.25rem;
  color: var(--text-secondary);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-md);
}

.empty-state h3 {
  color: var(--text-primary);
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

/* Toast Notification */
.toast-container {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 150;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-elevated);
  border: 1px solid var(--border-focus);
  color: var(--text-primary);
  padding: 0.7rem 1rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  font-size: 0.88rem;
}