/*
 * dark-ui.css
 * UI Toolkit — Dark Theme
 * Extracted from SaasCMMS. Drop into any Django/Flask/HTML project.
 *
 * Fonts (add to <head>):
 *   <link href="https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=DM+Mono:wght@400;500&display=swap" rel="stylesheet">
 * Date picker (optional):
 *   <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/flatpickr/4.6.13/flatpickr.min.css">
 *   <script src="https://cdnjs.cloudflare.com/ajax/libs/flatpickr/4.6.13/flatpickr.min.js"></script>
 */

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

/* ── DESIGN TOKENS ──────────────────────────────────────────────────── */
:root {
  /* Surfaces */
  --bg:        #0d0f12;   /* page background */
  --surface:   #161a20;   /* card / header */
  --surface2:  #1e242c;   /* elevated card / input */

  /* Borders */
  --border:    #2a313c;

  /* Text */
  --text:      #e8edf2;   /* primary */
  --text-muted:#8a97a8;   /* secondary / labels */
  --text-dim:  #4a5568;   /* disabled / placeholders */

  /* Brand */
  --accent:    #3b82f6;   /* blue — primary actions */
  --accent-hi: #60a5fa;   /* lighter blue — hover / links */

  /* Semantic */
  --success:   #22c55e;
  --warning:   #f59e0b;
  --danger:    #ef4444;

  /* Radii */
  --radius:    12px;
  --radius-sm: 8px;

  /* Typography */
  --font:      'DM Sans', system-ui, sans-serif;
  --font-mono: 'DM Mono', 'Courier New', monospace;

  /* Layout */
  --header-h:  56px;
  --nav-h:     60px;
}

/* ── BASE ───────────────────────────────────────────────────────────── */
html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

/* ── APP SHELL ──────────────────────────────────────────────────────── */
/*
  Structure:
    <div class="app">
      <div class="app-header-wrap"> ... </div>
      <main class="app-body"> ... </main>
      <nav class="app-nav"> ... </nav>
    </div>
*/
.app {
  display: flex;
  flex-direction: column;
  height: 100dvh;
}

/* Header */
.app-header-wrap {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.app-header {
  height: var(--header-h);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
}
.app-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.5px;
  flex: 1;
  text-decoration: none;
}
.app-logo span { color: var(--accent); }

.app-subheader {
  display: flex;
  align-items: center;
  padding: 0 16px 10px;
  gap: 8px;
}
.screen-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  margin-left: auto;
}
.user-context {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.user-context strong { color: var(--text); font-weight: 600; }

/* Scroll body */
.app-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px 16px calc(var(--nav-h) + 16px);
}

/* Bottom nav */
.app-nav {
  height: var(--nav-h);
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: flex;
  flex-shrink: 0;
  position: sticky;
  bottom: 0;
}
.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 500;
  transition: color 0.15s;
  position: relative;
}
.nav-item svg { width: 22px; height: 22px; }
.nav-item.active { color: var(--accent); }
.nav-badge {
  position: absolute;
  top: 6px;
  right: calc(50% - 18px);
  background: var(--danger);
  color: white;
  border-radius: 10px;
  font-size: 10px;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}

/* ── FLASH MESSAGES ─────────────────────────────────────────────────── */
.flash { border-radius: var(--radius-sm); padding: 10px 14px; font-size: 14px; margin-bottom: 8px; }
.flash-success { background: rgba(34,197,94,0.15);  border: 1px solid rgba(34,197,94,0.4);  color: #4ade80; }
.flash-error   { background: rgba(239,68,68,0.15);  border: 1px solid rgba(239,68,68,0.4);  color: #fca5a5; }
.flash-warning { background: rgba(245,158,11,0.15); border: 1px solid rgba(245,158,11,0.4); color: #fbbf24; }

/* ── TYPOGRAPHY ─────────────────────────────────────────────────────── */
.page-title    { font-size: 24px; font-weight: 700; letter-spacing: -0.5px; margin-bottom: 4px; }
.page-subtitle { font-size: 14px; color: var(--text-muted); margin-bottom: 20px; }
.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
  margin-top: 4px;
}

/* ── BADGES ─────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.badge-blue     { background: rgba(59,130,246,0.15);  color: #60a5fa; }
.badge-green    { background: rgba(34,197,94,0.15);   color: #4ade80; }
.badge-amber    { background: rgba(245,158,11,0.15);  color: #fbbf24; }
.badge-red      { background: rgba(239,68,68,0.15);   color: #f87171; }
.badge-purple   { background: rgba(167,139,250,0.2);  color: #c4b5fd; }
.badge-slate    { background: rgba(100,116,139,0.15); color: #94a3b8; }
/* Semantic aliases */
.badge-active      { background: rgba(59,130,246,0.15);  color: #60a5fa; }
.badge-completed   { background: rgba(34,197,94,0.15);   color: #4ade80; }
.badge-onhold      { background: rgba(245,158,11,0.15);  color: #fbbf24; }
.badge-draft       { background: rgba(148,163,184,0.15); color: #94a3b8; }
.badge-rejected,
.badge-danger      { background: rgba(239,68,68,0.15);   color: #f87171; }
.badge-inprogress  { background: rgba(167,139,250,0.2);  color: #c4b5fd; }
.badge-low         { background: rgba(100,116,139,0.15); color: #94a3b8; }
.badge-standard    { background: rgba(59,130,246,0.15);  color: #93c5fd; }
.badge-high        { background: rgba(245,158,11,0.15);  color: #fbbf24; }
.badge-emergency   { background: rgba(239,68,68,0.2);    color: #fca5a5; }

/* ── ID BADGE ───────────────────────────────────────────────────────── */
/* Monospace record identifier — e.g. PRJ-42, WO-7 */
.id-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--accent);
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.25);
  border-radius: 4px;
  padding: 3px 8px;
}

/* ── CARDS ──────────────────────────────────────────────────────────── */
.card-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, background 0.15s;
  cursor: pointer;
}
.card:hover, .card:active { border-color: var(--accent); background: var(--surface2); }
.card-main  { flex: 1; min-width: 0; }
.card-title { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-sub   { font-size: 13px; color: var(--text-muted); }
.card-arrow { color: var(--text-dim); flex-shrink: 0; }
.card-arrow svg { width: 18px; height: 18px; }

/* Stat cards */
.stat-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 10px; margin-bottom: 18px; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  text-decoration: none;
  display: block;
  transition: border-color 0.15s;
}
.stat-card:hover { border-color: var(--accent); }
.stat-num   { font-size: 28px; font-weight: 700; line-height: 1.1; margin-bottom: 2px; }
.stat-label { font-size: 12px; color: var(--text-muted); }
.stat-blue  .stat-num { color: #60a5fa; }
.stat-red   .stat-num { color: #f87171; }
.stat-amber .stat-num { color: #fbbf24; }
.stat-green .stat-num { color: #4ade80; }

/* ── DETAIL VIEW ────────────────────────────────────────────────────── */
.detail-section { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; }
.detail-section-title { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-dim); padding: 12px 16px 8px; border-bottom: 1px solid var(--border); }
.detail-row { display: flex; padding: 10px 16px; border-bottom: 1px solid var(--border); gap: 12px; }
.detail-row:last-child { border-bottom: none; }
.detail-key { font-size: 13px; color: var(--text-muted); width: 130px; flex-shrink: 0; }
.detail-val { font-size: 13px; color: var(--text); flex: 1; }

/* ── PAGE HEADER ZONES ──────────────────────────────────────────────── */
/* Zone 1 — Navigation & Identity */
.zone-nav { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
.zone-back { color: var(--text-muted); text-decoration: none; display: flex; align-items: center; }
.zone-back:hover { color: var(--text); }
/* Zone 2 — Title */
.zone-title { font-size: 17px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
/* Zone 3 — Meta */
.zone-meta  { font-size: 13px; color: var(--text-muted); margin-bottom: 12px; }
/* Zone 4 — Actions (conditional) */
.action-zone {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  flex-wrap: wrap;
}

/* ── TABS ───────────────────────────────────────────────────────────── */
.tabs-strip { display: flex; border-bottom: 1px solid var(--border); margin-bottom: 16px; overflow-x: auto; }
.tab-btn {
  padding: 10px 14px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 500;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s;
}
.tab-btn.active   { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }
.tab-btn.inactive { color: var(--text-muted); }
.tab-btn:hover:not(.active) { color: var(--text); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── FORMS ──────────────────────────────────────────────────────────── */
.form-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; margin-bottom: 14px; }
.form-section-title { font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.04em; }
.fg { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.fg label { font-size: 11px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.fg label .req { color: var(--danger); }
.fg input, .fg select, .fg textarea {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  padding: 10px 12px;
  width: 100%;
  transition: border-color 0.15s;
  outline: none;
}
.fg input:focus, .fg select:focus, .fg textarea:focus { border-color: var(--accent); }
.fg select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='11' viewBox='0 0 24 24' fill='none' stroke='%237a8aaa' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}
.fg textarea { resize: vertical; min-height: 100px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }

/* Date picker */
.date-wrap { display: flex; align-items: center; }
.date-pick-btn {
  display: flex; align-items: center; justify-content: center;
  width: 38px; height: 42px; flex-shrink: 0;
  background: var(--surface2); border: 1px solid var(--border);
  border-right: none; border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  color: var(--text-muted); cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.date-pick-btn:hover { color: var(--accent); border-color: var(--accent); }
.date-pick-btn svg { width: 16px; height: 16px; }
.date-wrap input[type="date"] {
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0 !important;
  flex: 1; width: auto !important;
}

/* ── BUTTONS ────────────────────────────────────────────────────────── */
/* Full-width page buttons */
.btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 20px; border-radius: var(--radius);
  font-family: var(--font); font-size: 15px; font-weight: 600;
  cursor: pointer; border: none; text-decoration: none;
  width: 100%; transition: opacity 0.15s;
}
.btn:active { opacity: 0.8; }
.btn-primary   { background: var(--accent); color: white; }
.btn-secondary { background: var(--surface2); color: var(--text); border: 1px solid var(--border); }
.btn-danger    { background: rgba(239,68,68,0.15); color: var(--danger); border: 1px solid rgba(239,68,68,0.3); }
.btn-success   { background: rgba(34,197,94,0.15); color: var(--success); border: 1px solid rgba(34,197,94,0.3); }
.btn + .btn { margin-top: 10px; }

/* Header/inline buttons */
.hdr-btn {
  font-size: 12px; font-weight: 600; border-radius: 6px;
  padding: 6px 13px; border: 1px solid var(--border);
  cursor: pointer; white-space: nowrap; font-family: var(--font);
  background: var(--surface2); color: var(--text-muted);
  text-decoration: none; display: inline-flex; align-items: center; gap: 5px;
  transition: border-color 0.15s;
}
.hdr-btn:hover { border-color: var(--accent); color: var(--text); }
.hdr-btn-primary { background: rgba(59,130,246,0.15); color: #60a5fa; border-color: rgba(59,130,246,0.4); }
.hdr-btn-success { background: rgba(34,197,94,0.15);  color: #4ade80; border-color: rgba(34,197,94,0.4);  }
.hdr-btn-danger  { background: rgba(239,68,68,0.12);  color: #f87171; border-color: rgba(239,68,68,0.35); }

/* ── SEARCH ─────────────────────────────────────────────────────────── */
.search-wrap {
  position: relative;
  margin-bottom: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 8px;
}
.search-wrap svg { color: var(--text-dim); width: 16px; height: 16px; flex-shrink: 0; }
.search-input {
  background: transparent; border: none; outline: none;
  color: var(--text); font-family: var(--font); font-size: 15px;
  padding: 11px 0; width: 100%;
}
.search-input::placeholder { color: var(--text-dim); }

/* ── MODALS ─────────────────────────────────────────────────────────── */
.modal-bg {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.7); z-index: 200;
  align-items: flex-end; justify-content: center;
  padding: 0;
}
.modal-bg.open { display: flex; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 20px 16px 32px;
  width: 100%; max-width: 500px;
}
.modal-title { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.modal-body  { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; }
.modal-actions { display: flex; gap: 8px; }
.modal-actions .btn { width: auto; flex: 1; }
.btn-modal-cancel { background: var(--surface2); color: var(--text-muted); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 16px; font-family: var(--font); font-size: 14px; cursor: pointer; }

/* ── ACTIVITY LOG ───────────────────────────────────────────────────── */
.log-entry { display: flex; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.log-entry:last-child { border-bottom: none; }
.log-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex-shrink: 0; margin-top: 5px; }
.log-text { font-size: 13px; color: var(--text-muted); flex: 1; }
.log-time { font-size: 11px; color: var(--text-dim); white-space: nowrap; }

/* ── ALERT BANNER ───────────────────────────────────────────────────── */
.alert-banner {
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.3);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 14px;
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; color: #fcd34d;
  text-decoration: none;
}
.alert-banner:hover { border-color: rgba(245,158,11,0.5); }
.alert-banner-danger {
  background: rgba(239,68,68,0.1);
  border-color: rgba(239,68,68,0.3);
  color: #fca5a5;
}

/* ── EMPTY STATE ────────────────────────────────────────────────────── */
.empty-state {
  text-align: center; padding: 48px 20px;
  color: var(--text-muted); font-size: 15px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.empty-state svg { opacity: 0.35; }

/* ── MEDIA / LIGHTBOX ───────────────────────────────────────────────── */
.media-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; }
.media-thumb { aspect-ratio: 1; overflow: hidden; border-radius: 6px; background: var(--surface2); cursor: pointer; }
.media-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
#lightbox { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.92); z-index: 1000; align-items: center; justify-content: center; padding: 16px; }
#lightbox img { max-width: 100%; max-height: 100%; object-fit: contain; border-radius: 4px; }

/* ── FLATPICKR DARK OVERRIDES ───────────────────────────────────────── */
.flatpickr-calendar { background: #1e242c !important; border: 1px solid #3d4d70 !important; border-radius: 10px !important; box-shadow: 0 8px 32px rgba(0,0,0,.6) !important; font-family: var(--font) !important; }
.flatpickr-months { background: #1e242c !important; border-radius: 10px 10px 0 0 !important; }
.flatpickr-month { color: #e8edf2 !important; fill: #e8edf2 !important; }
.flatpickr-weekday { color: #8a97a8 !important; }
.flatpickr-day { color: #e8edf2 !important; border-radius: 6px !important; }
.flatpickr-day:hover { background: #2a3550 !important; border-color: #2a3550 !important; }
.flatpickr-day.selected { background: #3b82f6 !important; border-color: #3b82f6 !important; }
.flatpickr-day.today { border-color: #3b82f6 !important; }
.flatpickr-day.flatpickr-disabled { color: #4a5568 !important; }
.flatpickr-current-month .cur-month,
.flatpickr-current-month input.cur-year { color: #e8edf2 !important; }
.flatpickr-prev-month svg, .flatpickr-next-month svg { fill: #8a97a8 !important; }
.flatpickr-prev-month:hover svg, .flatpickr-next-month:hover svg { fill: #3b82f6 !important; }
