/* HessDash Responsive Web PWA Stylesheet */
:root {
  --bg-base: #0f172a;
  --bg-surface: #1e293b;
  --bg-card: #273549;
  --bg-card-hover: #334155;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border-color: #334155;
  --primary: #38bdf8;
  --primary-hover: #0284c7;
  --accent: #818cf8;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --urgent: #f43f5e;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
  --transition: all 0.2s ease-in-out;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-base);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Offline Indicator Banner */
.offline-banner {
  background: linear-gradient(90deg, #b45309, #d97706);
  color: #ffffff;
  padding: 0.6rem 1.2rem;
  text-align: center;
  font-weight: 600;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  transition: var(--transition);
}

.offline-banner.hidden {
  display: none !important;
}

/* Header & Nav */
.header {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  color: #0f172a;
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-main);
}

.brand-badge {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  background-color: rgba(56, 189, 248, 0.15);
  color: var(--primary);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.view-tabs {
  display: flex;
  background-color: var(--bg-card);
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  gap: 0.25rem;
}

.view-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}

.view-btn.active, .view-btn:hover {
  background-color: var(--bg-surface);
  color: var(--text-main);
}

/* DeX Desktop Mode Indicator */
.dex-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: rgba(129, 140, 248, 0.15);
  color: var(--accent);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
}

/* Main Container */
.main-container {
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* AI Briefing Banner */
.ai-briefing-banner {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.95), rgba(39, 53, 73, 0.95));
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.ai-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.ai-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ai-badge {
  background: linear-gradient(90deg, #0ea5e9, #818cf8);
  color: #0f172a;
  font-weight: 700;
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ai-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.ai-date {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.ai-overview {
  font-size: 0.95rem;
  color: #cbd5e1;
}

.ai-priorities-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.ai-priority-item {
  font-size: 0.9rem;
  color: #e2e8f0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ai-priority-item::before {
  content: "⚡";
  font-size: 0.85rem;
}

.ai-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 0.5rem;
  margin-top: 0.25rem;
}

/* Dashboard Grid Layout (Desktop Multi-Column) */
.dashboard-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

.grid-col-primary {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.grid-col-secondary {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Dashboard Cards */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}

.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(30, 41, 59, 0.7);
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-body {
  padding: 1.25rem;
}

/* Timescale Tabs */
.timescale-tabs {
  display: flex;
  gap: 0.5rem;
  background-color: var(--bg-card);
  padding: 0.3rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.5rem;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: var(--transition);
}

.tab-btn.active {
  background-color: var(--primary);
  color: #0f172a;
}

.tab-btn:hover:not(.active) {
  background-color: var(--bg-card-hover);
  color: var(--text-main);
}

/* Todo List Items */
.todo-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.todo-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background-color: var(--bg-card);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--primary);
  transition: var(--transition);
}

.todo-item:hover {
  background-color: var(--bg-card-hover);
}

.todo-item.priority-Urgent { border-left-color: var(--urgent); }
.todo-item.priority-High { border-left-color: var(--warning); }
.todo-item.priority-Medium { border-left-color: var(--primary); }
.todo-item.priority-Low { border-left-color: var(--success); }

.todo-item.overdue {
  border: 1px solid rgba(239, 68, 68, 0.4);
  border-left: 4px solid var(--urgent);
}

.todo-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.todo-title {
  font-weight: 600;
  font-size: 0.95rem;
}

.todo-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Badges */
.badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 3px;
  text-transform: uppercase;
}

.badge-urgent { background-color: var(--urgent); color: #fff; }
.badge-high { background-color: var(--warning); color: #000; }
.badge-medium { background-color: var(--primary); color: #000; }
.badge-low { background-color: var(--success); color: #000; }
.badge-low-stock { background-color: var(--danger); color: #fff; }
.badge-ok { background-color: var(--success); color: #fff; }

/* Calendar Appointments Widget */
.calendar-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.calendar-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  padding: 0.75rem 1rem;
  background-color: var(--bg-card);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.calendar-item:hover {
  background-color: var(--bg-card-hover);
}

.calendar-time-chip {
  background-color: rgba(56, 189, 248, 0.15);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.8rem;
  padding: 0.35rem 0.5rem;
  border-radius: 4px;
  min-width: 55px;
  text-align: center;
}

.calendar-details {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.calendar-title {
  font-size: 0.95rem;
  font-weight: 600;
}

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

/* Inventory Widget & Restock Buttons */
.inventory-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.inventory-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background-color: var(--bg-card);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.inventory-item:hover {
  background-color: var(--bg-card-hover);
}

.inventory-item.low-stock {
  border-left: 4px solid var(--danger);
}

.inventory-details {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.inventory-name {
  font-weight: 600;
  font-size: 0.95rem;
}

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

.restock-btn {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #0f172a;
  border: none;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: var(--transition);
  min-height: 36px;
}

.restock-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.restock-btn:active {
  transform: translateY(0);
}

/* Quick Add Form */
.quick-add-form {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.quick-add-input {
  flex: 1;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  color: var(--text-main);
  font-size: 0.85rem;
}

.quick-add-input:focus {
  outline: none;
  border-color: var(--primary);
}

.quick-add-btn {
  background-color: var(--bg-card-hover);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.quick-add-btn:hover {
  background-color: var(--primary);
  color: #0f172a;
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */

/* 1. Mobile Single-Column Layout (< 768px) */
@media screen and (max-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .main-container {
    padding: 1rem;
    gap: 1rem;
  }

  .header {
    padding: 0.75rem 1rem;
    flex-direction: column;
    align-items: stretch;
  }

  .brand {
    justify-content: space-between;
  }

  .view-tabs {
    overflow-x: auto;
    width: 100%;
    justify-content: space-between;
  }

  .timescale-tabs {
    overflow-x: auto;
  }

  .tab-btn {
    min-width: 75px;
    padding: 0.6rem 0.4rem;
  }

  .restock-btn {
    min-height: 44px; /* Mobile tap target size compliance */
    padding: 0.6rem 1rem;
  }

  .ai-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }
}

/* 2. Desktop Multi-Column Layout (>= 769px) */
@media screen and (min-width: 769px) {
  .dashboard-grid {
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
  }
}

@media screen and (min-width: 1200px) {
  .dashboard-grid {
    grid-template-columns: 7fr 5fr;
    gap: 2rem;
  }
}

/* 3. Samsung Android / DeX Desktop Mode */
@media screen and (min-width: 1024px) and (min-height: 600px), (pointer: fine) and (min-width: 992px) {
  .dex-mode body, body.dex-mode {
    font-size: 14px;
  }

  .dex-mode .dashboard-grid, body.dex-mode .dashboard-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  .dex-mode .card, body.dex-mode .card {
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-sm);
  }

  .dex-mode .card-header, body.dex-mode .card-header {
    padding: 0.75rem 1rem;
    cursor: grab;
    user-select: none;
  }

  .dex-mode .card-body, body.dex-mode .card-body {
    padding: 1rem;
  }

  .dex-mode .dex-indicator, body.dex-mode .dex-indicator {
    display: inline-flex !important;
  }
}