/* Design system, matched to the real Divers Tech Service brand
   (see /Users/alexhartel/Desktop/DTS website/index.html) — navy + teal,
   Segoe UI stack. Every color/spacing value is a variable here; nothing
   below this block should hardcode a color. */
:root {
  --navy: #003366;
  --navy-light: #0a4a80;
  --teal: #008080;
  --teal-hover: #006666;
  --teal-light-bg: #e6f6f6;

  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-alt: #f1f5f9;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e0;
  --color-text: #333333;
  --color-text-secondary: #4a5568;
  --color-text-muted: #64748b;

  --color-danger: #cc0000;
  --color-danger-bg: #ffe5e5;

  /* Stage/status progression — a purposeful ramp, not a rainbow: gray (not
     started) -> amber (active work) -> blue (waiting on next step) ->
     green (done). Red is reserved for cancelled/failed only. */
  --stage-neutral: #64748b;
  --stage-neutral-bg: #f1f5f9;
  --stage-active: #b45309;
  --stage-active-bg: #fef3c7;
  --stage-waiting: #1d4ed8;
  --stage-waiting-bg: #dbeafe;
  --stage-done: #15803d;
  --stage-done-bg: #dcfce7;

  --font-sans: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --shadow-card: 0 4px 15px rgba(0, 0, 0, 0.05);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

a {
  color: var(--teal);
  text-decoration: none;
}

h1, h2, h3 {
  font-weight: 700;
  margin: 0 0 var(--space-3);
  color: var(--navy);
}

h1 { font-size: 24px; }
h2 { font-size: 18px; }
h3 { font-size: 13px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700; }

/* ---- layout shell ---- */

#login-view, #app-view {
  display: none;
}
#login-view.visible, #app-view.visible {
  display: block;
}

.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(rgba(0, 51, 102, 0.9), rgba(0, 51, 102, 0.97));
}

.login-box {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  border-top: 6px solid var(--navy);
  padding: var(--space-6);
  width: 340px;
  text-align: center;
}

.login-box img {
  height: 70px;
  margin-bottom: var(--space-3);
}

.login-box h1 {
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 20px;
}

.login-server {
  color: var(--color-text-muted);
  font-size: 12px;
  margin-bottom: var(--space-5);
}

.field {
  margin-bottom: var(--space-3);
  text-align: left;
}

.field label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: var(--space-1);
}

.field input, .field select, .field textarea {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
}

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

/* ---- app shell: top bar + tabs, matching the real site's header ---- */

.top-bar {
  background: #fff;
  padding: var(--space-2) 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-card);
  position: sticky;
  top: 0;
  z-index: 10;
}

.top-bar .logo img {
  height: 56px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav-links .nav-item {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  padding: var(--space-2) 0;
}

.nav-links .nav-item:hover {
  color: var(--teal);
}

.nav-links .nav-item.active {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.nav-links .user-label {
  color: var(--color-text-muted);
  font-size: 13px;
  margin-left: var(--space-3);
}

.page {
  padding: var(--space-5) 5%;
  max-width: 1200px;
  margin: 0 auto;
}

.tab-panel {
  display: none;
}
.tab-panel.active {
  display: block;
}

.sub-nav {
  display: flex;
  /* wrap so six-subtab rows (Mail tab) fit phone widths instead of
     forcing the whole page to scroll sideways */
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-4);
}

.sub-nav-item {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  padding: var(--space-2) 0;
}

.sub-nav-item:hover {
  color: var(--teal);
}

.sub-nav-item.active {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.sub-tab-panel {
  display: none;
}
.sub-tab-panel.active {
  display: block;
}

/* ---- components ---- */

.card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  border-top: 4px solid var(--navy);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-4);
}

.card.card-accent {
  border-top-color: var(--teal);
}

.card-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-4);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: background 0.2s;
}

.btn:hover {
  background: var(--color-surface-alt);
}

.btn-primary {
  background: var(--teal);
  border-color: var(--teal);
  color: #fff;
}

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

.btn-danger {
  color: var(--color-danger);
  border-color: var(--color-danger);
  background: var(--color-danger-bg);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th {
  text-align: left;
  color: var(--color-text-muted);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: var(--space-2) var(--space-3);
  border-bottom: 2px solid var(--color-border);
}

td {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

tr:hover td {
  background: var(--teal-light-bg);
  cursor: pointer;
}

.badge {
  display: inline-block;
  padding: 2px var(--space-2);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}

/* Stage/status ramp: gray -> amber -> blue -> green guides the user
   forward through the repair workflow; red is reserved for cancelled/failed. */
.badge-neutral { background: var(--stage-neutral-bg); color: var(--stage-neutral); }
.badge-active { background: var(--stage-active-bg); color: var(--stage-active); }
.badge-waiting { background: var(--stage-waiting-bg); color: var(--stage-waiting); }
.badge-done { background: var(--stage-done-bg); color: var(--stage-done); }
.badge-danger { background: var(--color-danger-bg); color: var(--color-danger); }

.error-text {
  color: var(--color-danger);
  font-size: 12px;
  margin-top: var(--space-2);
}

.empty-state {
  color: var(--color-text-muted);
  text-align: center;
  padding: var(--space-6);
}

/* ---- modal ---- */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 51, 102, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border-top: 6px solid var(--navy);
  padding: var(--space-5);
  width: 440px;
  max-width: 90vw;
  max-height: 85vh;
  overflow-y: auto;
}

.modal-actions {
  display: flex;
  gap: var(--space-2);
  justify-content: flex-end;
  margin-top: var(--space-4);
}

/* ---- Diving > Classes calendar ---- */

.cal-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.cal-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.cal-weekday {
  background: var(--color-surface-alt);
  padding: var(--space-2);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-align: center;
}

.cal-day {
  background: var(--color-surface);
  min-height: 96px;
  padding: var(--space-1) var(--space-2);
}

.cal-day-outside {
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
}

.cal-day-today .cal-day-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--teal);
  color: #fff;
  border-radius: 50%;
  width: 20px;
  height: 20px;
}

.cal-day-num {
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 4px;
}

.cal-event {
  background: var(--teal-light-bg);
  color: var(--teal-hover);
  border-radius: var(--radius-sm);
  padding: 2px 5px;
  font-size: 11px;
  margin-bottom: 3px;
  cursor: pointer;
  line-height: 1.3;
}

.cal-event:hover {
  background: var(--teal);
  color: #fff;
}

.cal-event-full {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

.cal-event-full:hover {
  background: var(--color-danger);
  color: #fff;
}

/* Dives get a distinct color from Classes so a merged calendar can tell
   them apart at a glance without reading the text. */
.cal-event-dive {
  background: var(--stage-waiting-bg);
  color: var(--stage-waiting);
}

.cal-event-dive:hover {
  background: var(--stage-waiting);
  color: #fff;
}

.cal-event-count {
  display: block;
  font-weight: 600;
}

.cal-event-staff {
  display: block;
  font-weight: 400;
  opacity: 0.85;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cal-event-staff-missing {
  font-weight: 700;
  color: var(--color-danger);
  opacity: 1;
}

.status-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}

.status-badge-good {
  background: var(--color-success-bg, #e6f6ea);
  color: var(--color-success, #1a7f37);
}

.status-badge-bad {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

/* ---- mobile ---- */

@media (max-width: 768px) {
  .top-bar {
    padding: var(--space-2) 4%;
    flex-wrap: wrap;
    gap: var(--space-2);
  }

  .top-bar .logo img {
    height: 40px;
  }

  .nav-links {
    width: 100%;
    order: 3;
    gap: var(--space-4);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--space-1);
  }

  .nav-links .nav-item {
    white-space: nowrap;
  }

  .nav-links .user-label {
    display: none;
  }

  .page {
    padding: var(--space-3) 4%;
  }

  /* Wide tables scroll horizontally as one block rather than squashing
     columns or overflowing the viewport. */
  table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }

  /* The diving calendar stays a real grid (not display:block, which would
     break its 7-column layout) -- columns get a floor width instead, so
     the grid itself scrolls horizontally rather than squashing illegibly. */
  .cal-grid {
    grid-template-columns: repeat(7, minmax(72px, 1fr));
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .modal {
    width: 100%;
    max-width: 100vw;
    max-height: 100vh;
    height: 100%;
    border-radius: 0;
  }

  .modal-actions {
    flex-wrap: wrap;
  }

  /* Most side-by-side field rows in modals are inline-styled rather than
     class-based (JS-generated HTML across the app) -- catch them generically
     so label/input pairs stack instead of clipping on a narrow screen. */
  .modal [style*="display:flex"], .modal [style*="display: flex"] {
    flex-wrap: wrap;
  }
}

/* ---- Mail tab ---- */

.rte {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
}

.rte-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
  padding: 6px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  border-radius: 6px 6px 0 0;
}

.rte-toolbar button {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: 4px;
  min-width: 30px;
  padding: 4px 6px;
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
}

.rte-toolbar button:hover {
  background: var(--teal-light-bg);
}

.rte-toolbar select {
  width: auto;
  font-size: 12px;
  padding: 4px;
}

.rte-toolbar input[type="color"] {
  width: 30px;
  height: 28px;
  padding: 1px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-surface);
  cursor: pointer;
}

.rte-area {
  padding: 10px 12px;
  outline: none;
  font-size: 14px;
  overflow-y: auto;
  max-height: 55vh;
}

.mailbox-layout {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.mailbox-sidebar {
  width: 180px;
  flex-shrink: 0;
}

.mailbox-folder {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  color: var(--color-text);
}

.mailbox-folder:hover {
  background: var(--color-surface-alt);
}

.mailbox-folder.active {
  background: var(--teal-light-bg);
  color: var(--teal-hover);
  font-weight: 600;
}

.mailbox-unseen {
  background: var(--teal);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  border-radius: 10px;
  padding: 1px 7px;
}

.mailbox-main {
  flex: 1;
  min-width: 0;
}

.mailbox-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--color-text-muted);
  padding: 4px 0 8px;
}

.mailbox-row {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px;
  border-top: 1px solid var(--color-border);
  cursor: pointer;
  font-size: 13px;
}

.mailbox-row:hover {
  background: var(--color-surface-alt);
}

.mailbox-row-unseen .mailbox-row-from,
.mailbox-row-unseen .mailbox-row-subject {
  font-weight: 700;
}

.mailbox-row-from {
  width: 180px;
  flex-shrink: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mailbox-row-subject {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mailbox-row-date {
  flex-shrink: 0;
  color: var(--color-text-muted);
  font-size: 12px;
}

@media (max-width: 700px) {
  .mailbox-layout {
    flex-direction: column;
  }
  .mailbox-sidebar {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }
  .mailbox-sidebar .mailbox-folder {
    width: auto;
  }
  .mailbox-row-from {
    width: 110px;
  }
}

/* ---- Invoice/RO theme picker ---- */

.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 10px;
}

.theme-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border: 2px solid var(--color-border);
  border-radius: 8px;
  padding: 10px;
  cursor: pointer;
  background: var(--color-surface);
}

.theme-card:hover {
  border-color: var(--teal);
}

.theme-card-active {
  border-color: var(--teal);
  background: var(--teal-light-bg);
}

.theme-swatch {
  display: block;
  height: 22px;
  border-radius: 4px;
}

.theme-card-label {
  font-weight: 700;
  font-size: 14px;
}

.theme-card-desc {
  font-size: 12px;
  color: var(--color-text-muted);
  line-height: 1.35;
}

/* ---- Invoice/RO template editor with live preview ---- */

.doc-template-layout {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.doc-template-controls {
  flex: 1;
  min-width: 0;
}

.doc-template-preview {
  width: 46%;
  flex-shrink: 0;
  position: sticky;
  top: 70px;
}

@media (max-width: 900px) {
  .doc-template-layout {
    flex-direction: column;
  }
  .doc-template-preview {
    width: 100%;
    position: static;
  }
}

/* ---- per-section document style editor ---- */

.doc-section-row {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 8px 10px;
  margin-bottom: 8px;
  background: var(--color-surface);
}

.doc-section-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 5px;
}

.doc-section-controls {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
}

.doc-section-controls input[type="number"],
.doc-section-controls select,
.doc-section-controls input[type="text"],
.doc-section-controls textarea {
  padding: 4px 6px;
  border: 1px solid var(--color-border-strong);
  border-radius: 4px;
  font-size: 12px;
}

.doc-section-controls input[type="color"] {
  width: 28px;
  height: 26px;
  padding: 1px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
}

.doc-flag, [data-sec-clear] {
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  border-radius: 4px;
  min-width: 26px;
  padding: 3px 6px;
  cursor: pointer;
  font-size: 12px;
}

.doc-flag.on {
  background: var(--teal);
  border-color: var(--teal);
  color: #fff;
}