/* ============================================================
   MANAV ROBOTICS — FDMT Design System
   Industrial. Confident. Premium.
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;0,9..40,800;0,9..40,900;1,9..40,400&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Brand Colors */
  --color-accent: #FF6A13;
  --color-accent-hover: #E85D0E;
  --color-accent-light: rgba(255, 106, 19, 0.08);
  --color-accent-medium: rgba(255, 106, 19, 0.15);

  /* Text */
  --color-text-primary: #1A1A1A;
  --color-text-secondary: #6B7280;
  --color-text-tertiary: #9CA3AF;
  --color-text-inverse: #FFFFFF;

  /* Backgrounds */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #F5F5F0;
  --color-bg-tertiary: #1A1A1A;
  --color-bg-hover: #FAFAF8;

  /* Borders */
  --color-border: #E5E5E0;
  --color-border-light: #F0F0EB;

  /* Status */
  --color-success: #22C55E;
  --color-success-light: rgba(34, 197, 94, 0.1);
  --color-warning: #F59E0B;
  --color-warning-light: rgba(245, 158, 11, 0.1);
  --color-error: #EF4444;
  --color-error-light: rgba(239, 68, 68, 0.1);

  /* Typography */
  --font-heading: 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

  /* Spacing */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  line-height: 1.5;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

/* Section headers — industrial all-caps */
.section-header {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

/* Monospace for data values */
.mono, .timer, [data-mono] {
  font-family: var(--font-mono);
}

/* --- Top Navigation Bar --- */
.nav-bar {
  background: var(--color-bg-tertiary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-bar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  height: 20px;
  width: 120px;
  flex-shrink: 0;
  object-fit: contain;
  object-position: left center;
}

.nav-logo-mark {
  display: none;
  height: 22px;
  width: 28px;
  flex-shrink: 0;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  transition: color 0.15s, background 0.15s;
  letter-spacing: 0.01em;
}

.nav-link:hover {
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.06);
}

.nav-link.active {
  color: var(--color-accent);
  background: rgba(255, 106, 19, 0.08);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-user-name {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  font-weight: 500;
}

.nav-btn {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
  display: flex;
  align-items: center;
}

.nav-btn:hover {
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.06);
}

/* --- Cards --- */
.card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 12px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s;
}

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

.card-flat {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

/* Stat cards */
.stat-card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  min-height: 44px; /* touch target */
  line-height: 1;
}

.btn-primary {
  background: var(--color-accent);
  color: white;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
}

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

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-danger {
  background: var(--color-error);
  color: white;
}

.btn-danger:hover {
  background: #DC2626;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border: none;
  padding: 8px 12px;
}

.btn-ghost:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
}

.btn-sm {
  font-size: 13px;
  padding: 6px 14px;
  min-height: 36px;
}

.btn-xs {
  font-size: 12px;
  padding: 4px 10px;
  min-height: 28px;
  font-weight: 500;
}

/* Action buttons for session cards */
.btn-action-pause {
  background: var(--color-warning-light);
  color: #92400E;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  min-height: 44px;
}

.btn-action-pause:hover { background: rgba(245, 158, 11, 0.2); }

.btn-action-resume {
  background: var(--color-success-light);
  color: #166534;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  min-height: 44px;
}

.btn-action-resume:hover { background: rgba(34, 197, 94, 0.2); }

.btn-action-end {
  background: var(--color-error-light);
  color: #991B1B;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  min-height: 44px;
}

.btn-action-end:hover { background: rgba(239, 68, 68, 0.2); }

/* --- FAB (Floating Action Button) --- */
.fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-accent);
  color: white;
  font-size: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(255, 106, 19, 0.4);
  cursor: pointer;
  z-index: 50;
  border: none;
  transition: transform 0.15s, box-shadow 0.15s;
}

.fab:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(255, 106, 19, 0.5);
}

/* --- Status Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.status-active {
  background: var(--color-success-light);
  color: #166534;
}

.status-active::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-success);
  display: inline-block;
}

.status-paused {
  background: var(--color-warning-light);
  color: #92400E;
}

.status-paused::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-warning);
  display: inline-block;
}

.status-ended {
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

/* --- Tables --- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.data-table thead {
  background: var(--color-bg-secondary);
}

.data-table thead th {
  padding: 10px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
}

.data-table tbody tr {
  border-bottom: 1px solid var(--color-border-light);
  transition: background 0.1s;
}

.data-table tbody tr:nth-child(even) {
  background: #FAFAF8;
}

.data-table tbody tr:hover {
  background: var(--color-accent-light);
}

.data-table tbody td {
  padding: 10px 16px;
  color: var(--color-text-primary);
}

.data-table .col-accent {
  color: var(--color-accent);
  font-weight: 600;
  font-family: var(--font-mono);
}

.data-table .col-mono {
  font-family: var(--font-mono);
  font-size: 12px;
}

/* --- Form Controls --- */
.form-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.15s, box-shadow 0.15s;
  min-height: 44px;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255, 106, 19, 0.1);
}

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

.form-input.error {
  border-color: var(--color-error);
}

/* --- Modals --- */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(26, 26, 26, 0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-overlay.show {
  display: flex;
}

.modal {
  background: var(--color-bg-primary);
  border-radius: var(--radius-xl);
  padding: 28px;
  width: 100%;
  max-width: 440px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-title {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--color-text-primary);
}

/* --- Dropdown Menu --- */
.dropdown-menu {
  display: none;
  position: absolute;
  right: 0;
  top: 100%;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  z-index: 40;
  min-width: 160px;
  overflow: hidden;
  padding: 4px;
}

.dropdown-menu.show {
  display: block;
}

.dropdown-item {
  padding: 10px 14px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-primary);
  border-radius: var(--radius-sm);
  transition: background 0.1s;
}

.dropdown-item:hover {
  background: var(--color-bg-secondary);
}

/* --- Tabs --- */
.tab-bar {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  gap: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab-btn {
  flex: 1;
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  text-align: center;
  white-space: nowrap;
  min-height: 44px;
}

.tab-btn:hover {
  color: var(--color-text-primary);
}

.tab-btn.active, .tab-btn[data-active="true"] {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.tab-count {
  background: var(--color-accent-medium);
  color: var(--color-accent);
  padding: 1px 7px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 700;
  margin-left: 6px;
  font-family: var(--font-mono);
}

.tab-count-muted {
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  padding: 1px 7px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 700;
  margin-left: 6px;
  font-family: var(--font-mono);
}

/* --- Toast Notifications --- */
.toast {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  color: white;
  z-index: 300;
  animation: toastIn 0.2s ease-out;
  box-shadow: var(--shadow-md);
}

.toast-success { background: var(--color-text-primary); }
.toast-error { background: var(--color-error); }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-8px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* --- Utilities --- */
.text-accent { color: var(--color-accent) !important; }
.text-secondary { color: var(--color-text-secondary) !important; }
.text-mono { font-family: var(--font-mono) !important; }
.bg-secondary { background: var(--color-bg-secondary) !important; }
.incomplete-warning { color: var(--color-warning); font-size: 13px; font-weight: 500; }
.timer { font-family: var(--font-mono); font-size: 13px; color: var(--color-accent); font-weight: 600; }

/* GoPro code highlight */
.gopro-code {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
}

/* --- Page Layout --- */
.page-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px;
}

.page-container-sm {
  max-width: 520px;
  margin: 0 auto;
  padding: 16px;
}

/* --- Link Styles --- */
a.link-accent {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
  font-size: 13px;
}

a.link-accent:hover {
  text-decoration: underline;
}

/* --- Mobile Responsive --- */
@media (max-width: 640px) {
  .nav-bar-inner {
    padding: 0 12px;
    height: 52px;
  }

  .nav-logo {
    display: none;
  }

  .nav-logo-mark {
    display: block;
  }

  .card {
    padding: 16px;
  }

  .stat-value {
    font-size: 24px;
  }

  .page-container {
    padding: 16px 12px;
  }

  .data-table {
    font-size: 12px;
  }

  .data-table thead th,
  .data-table tbody td {
    padding: 8px 10px;
  }
}

/* --- Login Page Specific --- */
.login-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-tertiary);
}

.login-hero {
  flex: 0 0 auto;
  padding: 48px 24px 32px;
  text-align: center;
}

.login-hero .login-logo {
  height: 32px;
  width: 180px;
  margin-bottom: 32px;
  object-fit: contain;
}

.login-hero h1 {
  color: white;
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 6px;
}

.login-hero p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
}

.login-form-wrapper {
  flex: 1;
  background: var(--color-bg-primary);
  border-radius: 24px 24px 0 0;
  padding: 32px 24px;
}

/* --- Operator Mobile Header --- */
.op-header {
  background: var(--color-bg-tertiary);
  position: sticky;
  top: 0;
  z-index: 30;
}

.op-header-inner {
  max-width: 520px;
  margin: 0 auto;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.op-header h1 {
  color: white;
  font-size: 17px;
  font-weight: 700;
}

.op-header .subtitle {
  color: rgba(255, 255, 255, 0.4);
  font-size: 12px;
}

/* --- End Day Button (operator) --- */
.btn-end-day {
  background: rgba(239, 68, 68, 0.1);
  color: #FCA5A5;
  border: 1px solid rgba(239, 68, 68, 0.2);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s;
}

.btn-end-day:hover {
  background: rgba(239, 68, 68, 0.2);
}

.btn-end-day.closed {
  background: rgba(34, 197, 94, 0.1);
  color: #86EFAC;
  border-color: rgba(34, 197, 94, 0.2);
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-tertiary);
}