/* =========================================================
   CSS Custom Properties — Light & Dark Theme
   ========================================================= */
:root,
[data-theme="light"] {
  color-scheme: light;
  --bg-page:        #f4f6f9;
  --bg-card:        #ffffff;
  --bg-header:      #1e3a5f;
  --bg-header-sub:  #16304f;
  --bg-input:       #ffffff;
  --bg-modal:       #ffffff;
  --bg-overlay:     rgba(0, 0, 0, 0.55);
  --bg-tab-hover:   rgba(255,255,255,0.15);
  --bg-tab-active:  rgba(255,255,255,0.25);
  --bg-filter:      #eef1f5;
  --bg-filter-act:  #1e3a5f;
  --bg-danger:      #fff5f5;
  --bg-track:       #e5e9ef;
  --bg-accordion:   #f8f9fb;
  --bg-note:        #f0f4ff;
  --bg-quick:       #f4f6f9;
  --bg-quick-hover: #e8ecf2;

  --text-primary:   #1a2535;
  --text-secondary: #5a6a80;
  --text-inverse:   #ffffff;
  --text-header:    #ffffff;
  --text-muted:     #8a9ab0;
  --text-filter:    #3a4a60;
  --text-filter-act:#ffffff;
  --text-danger:    #c0392b;

  --border:         #dde3ec;
  --border-input:   #c8d0dc;
  --border-focus:   #2563eb;
  --border-danger:  #f5c6cb;

  --accent:         #2563eb;
  --accent-hover:   #1d52c4;
  --accent-light:   #dbeafe;

  --success:        #16a34a;
  --success-bg:     #dcfce7;
  --warning:        #d97706;
  --warning-bg:     #fef3c7;
  --danger:         #dc2626;
  --danger-bg:      #fee2e2;

  --ring-track:     #e5e9ef;
  --ring-fill:      #2563eb;

  --shadow-sm:      0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:      0 4px 12px rgba(0,0,0,0.10);
  --shadow-lg:      0 8px 30px rgba(0,0,0,0.14);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg-page:        #0f1621;
  --bg-card:        #1a2233;
  --bg-header:      #0d1826;
  --bg-header-sub:  #091220;
  --bg-input:       #1f2d42;
  --bg-modal:       #1a2233;
  --bg-overlay:     rgba(0, 0, 0, 0.75);
  --bg-tab-hover:   rgba(255,255,255,0.08);
  --bg-tab-active:  rgba(255,255,255,0.15);
  --bg-filter:      #1f2d42;
  --bg-filter-act:  #2563eb;
  --bg-danger:      #2d1515;
  --bg-track:       #2a3548;
  --bg-accordion:   #14202f;
  --bg-note:        #1a2840;
  --bg-quick:       #1a2233;
  --bg-quick-hover: #1f2d42;

  --text-primary:   #e8edf5;
  --text-secondary: #8fa4be;
  --text-inverse:   #ffffff;
  --text-header:    #e8edf5;
  --text-muted:     #5a7090;
  --text-filter:    #b0c4dc;
  --text-filter-act:#ffffff;
  --text-danger:    #f87171;

  --border:         #2a3548;
  --border-input:   #354a65;
  --border-focus:   #3b82f6;
  --border-danger:  #7f1d1d;

  --accent:         #3b82f6;
  --accent-hover:   #2563eb;
  --accent-light:   #1e3a6e;

  --success:        #22c55e;
  --success-bg:     #14432a;
  --warning:        #f59e0b;
  --warning-bg:     #3d2b00;
  --danger:         #ef4444;
  --danger-bg:      #3d0f0f;

  --ring-track:     #2a3548;
  --ring-fill:      #3b82f6;

  --shadow-sm:      0 1px 3px rgba(0,0,0,0.30);
  --shadow-md:      0 4px 12px rgba(0,0,0,0.40);
  --shadow-lg:      0 8px 30px rgba(0,0,0,0.50);
}

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

/* Accessible focus ring for keyboard users */
:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* =========================================================
   Header
   ========================================================= */
.app-header {
  background: var(--bg-header);
  color: var(--text-header);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
  transition: background-color 0.2s ease;
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-shrink: 0;
}

.brand-icon { font-size: 1.75rem; line-height: 1; }

.brand-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-header);
  line-height: 1.2;
}

.brand-sub {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.65);
  display: block;
}

/* =========================================================
   Tab Navigation
   ========================================================= */
.tab-nav {
  display: flex;
  gap: 0.25rem;
  flex: 1;
  flex-wrap: wrap;
  justify-content: center;
}

.tab-btn {
  background: transparent;
  border: none;
  color: rgba(255,255,255,0.75);
  padding: 0.5rem 0.875rem;
  border-radius: 0.375rem;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.tab-btn:hover { background: var(--bg-tab-hover); color: #fff; }
.tab-btn.active { background: var(--bg-tab-active); color: #fff; font-weight: 700; }

/* =========================================================
   Header Controls (theme toggle + CTA)
   ========================================================= */
.header-controls {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-shrink: 0;
}

.btn-theme-toggle {
  background: var(--bg-tab-hover);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  width: 2.25rem;
  height: 2.25rem;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, transform 0.15s;
  color: #fff;
}
.btn-theme-toggle:hover { background: var(--bg-tab-active); transform: scale(1.1); }

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.15s, opacity 0.15s, transform 0.1s;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

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

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-filter); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }

.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.8rem; }

.header-cta { background: rgba(255,255,255,0.2); color: #fff; border: 1px solid rgba(255,255,255,0.35); }
.header-cta:hover { background: rgba(255,255,255,0.3); }

/* =========================================================
   Main Layout
   ========================================================= */
.app-main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

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

/* =========================================================
   Cards
   ========================================================= */
.card {
  background: var(--bg-card);
  border-radius: 0.875rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

/* =========================================================
   Dashboard Grid
   ========================================================= */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

/* Progress Ring */
.card-progress { display: flex; flex-direction: column; align-items: center; }

.ring-wrap {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0.5rem auto 1rem;
}

.progress-ring { width: 100%; height: 100%; transform: rotate(-90deg); }

.ring-track { fill: none; stroke: var(--ring-track); stroke-width: 10; }
.ring-fill { fill: none; stroke: var(--ring-fill); stroke-width: 10; stroke-linecap: round; transition: stroke-dashoffset 0.6s cubic-bezier(.4,0,.2,1); }

.ring-label {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.ring-pct { font-size: 1.75rem; font-weight: 800; color: var(--text-primary); line-height: 1; }
.ring-sub { font-size: 0.7rem; color: var(--text-secondary); }

.progress-stats {
  display: flex;
  gap: 1.5rem;
  width: 100%;
  justify-content: center;
  margin-top: 0.5rem;
}
.stat { display: flex; flex-direction: column; align-items: center; gap: 0.125rem; }
.stat-val { font-size: 1.5rem; font-weight: 800; color: var(--text-primary); }
.stat-lbl { font-size: 0.7rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.05em; }

/* Cost Card */
.cost-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 0.875rem; margin-bottom: 1rem; }
.cost-item { display: flex; flex-direction: column; gap: 0.2rem; }
.cost-label { font-size: 0.75rem; color: var(--text-secondary); font-weight: 500; }
.cost-val { font-size: 1rem; font-weight: 700; color: var(--text-primary); }

.budget-bar-wrap { margin-top: 0.5rem; }
.budget-bar-labels { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--text-secondary); margin-bottom: 0.375rem; }
.budget-bar-track { height: 8px; border-radius: 4px; background: var(--bg-track); overflow: hidden; }
.budget-bar-fill { height: 100%; border-radius: 4px; background: var(--accent); transition: width 0.4s ease, background 0.2s; }
.budget-bar-fill.over { background: var(--danger); }

/* Milestones Dash */
.milestone-list { list-style: none; display: flex; flex-direction: column; gap: 0.625rem; }
.milestone-list .milestone-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.875rem;
  border-radius: 0.5rem;
  background: var(--bg-accordion);
  border: 1px solid var(--border);
  font-size: 0.875rem;
}
.milestone-date { font-size: 0.75rem; color: var(--text-muted); margin-left: auto; white-space: nowrap; }
.milestone-done { text-decoration: line-through; opacity: 0.6; }

/* Phase Breakdown */
.phase-breakdown { display: flex; flex-direction: column; gap: 0.875rem; }
.pb-item { }
.pb-label { display: flex; justify-content: space-between; font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 0.25rem; }
.pb-bar-track { height: 7px; border-radius: 4px; background: var(--bg-track); overflow: hidden; }
.pb-bar-fill { height: 100%; border-radius: 4px; background: var(--accent); transition: width 0.4s; }

.empty-state { color: var(--text-muted); font-size: 0.875rem; font-style: italic; }

/* =========================================================
   Section Headers
   ========================================================= */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.section-title { font-size: 1.35rem; font-weight: 700; color: var(--text-primary); }
.section-actions { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; }

/* =========================================================
   Filter Toolbar
   ========================================================= */
.filter-toolbar {
  display: flex;
  gap: 0.25rem;
  background: var(--bg-filter);
  border-radius: 0.5rem;
  padding: 0.25rem;
  flex-wrap: wrap;
}
.filter-btn {
  background: transparent;
  border: none;
  color: var(--text-filter);
  padding: 0.3rem 0.75rem;
  border-radius: 0.375rem;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.filter-btn:hover { background: var(--bg-card); }
.filter-btn.active { background: var(--bg-filter-act); color: var(--text-filter-act); font-weight: 700; }

/* =========================================================
   Phases Accordion
   ========================================================= */
.phases-accordion { display: flex; flex-direction: column; gap: 1rem; }

.phase-block {
  background: var(--bg-card);
  border-radius: 0.875rem;
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: background-color 0.2s ease;
}

.phase-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  user-select: none;
  background: var(--bg-accordion);
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.phase-header:hover { background: var(--bg-filter); }

.phase-toggle-icon { font-size: 0.75rem; color: var(--text-muted); transition: transform 0.2s; }
.phase-block.open .phase-toggle-icon { transform: rotate(90deg); }

.phase-name { font-weight: 700; font-size: 1rem; color: var(--text-primary); flex: 1; }
.phase-meta { font-size: 0.75rem; color: var(--text-secondary); }
.phase-progress-pill {
  background: var(--accent-light);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 2rem;
}

.phase-actions { display: flex; gap: 0.375rem; }
.icon-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
  cursor: pointer;
  color: var(--text-secondary);
  transition: background 0.15s;
}
.icon-btn:hover { background: var(--bg-filter); color: var(--text-primary); }
.icon-btn.danger:hover { background: var(--danger-bg); color: var(--danger); border-color: var(--danger); }

.phase-tasks { padding: 0.75rem 1.25rem 1.25rem; display: flex; flex-direction: column; gap: 0.625rem; }
.phase-tasks-header {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 0.25rem;
}

.task-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 0.625rem;
  background: var(--bg-accordion);
  border: 1px solid var(--border);
  transition: background 0.15s, opacity 0.2s;
}
.task-row:hover { background: var(--bg-filter); }
.task-row.filtered-out { display: none; }

.task-name { flex: 1; font-size: 0.9rem; font-weight: 600; color: var(--text-primary); cursor: pointer; }
.task-name:hover { color: var(--accent); text-decoration: underline; }
.task-dates { font-size: 0.72rem; color: var(--text-muted); }
.task-cost { font-size: 0.8rem; color: var(--text-secondary); white-space: nowrap; }

/* =========================================================
   Badges
   ========================================================= */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 2rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
  cursor: pointer;
  transition: opacity 0.15s;
}
.badge:hover { opacity: 0.8; }
.badge-not-started { background: var(--bg-track); color: var(--text-muted); }
.badge-in-progress { background: var(--warning-bg); color: var(--warning); }
.badge-complete { background: var(--success-bg); color: var(--success); }

/* =========================================================
   Empty State
   ========================================================= */
.empty-full {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--text-secondary);
}
.empty-icon { font-size: 3rem; display: block; margin-bottom: 1rem; }
.empty-full p { margin-bottom: 1.25rem; font-size: 0.95rem; }

/* =========================================================
   Budget Table
   ========================================================= */
.budget-table-wrap { overflow-x: auto; }
.budget-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: 0.875rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  font-size: 0.875rem;
}
.budget-table th {
  background: var(--bg-accordion);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.875rem 1rem;
  text-align: left;
  border-bottom: 2px solid var(--border);
}
.budget-table th.num { text-align: right; }
.budget-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  vertical-align: middle;
}
.budget-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.budget-table tr:last-child td { border-bottom: none; }
.budget-table tfoot td {
  font-weight: 700;
  background: var(--bg-accordion);
  border-top: 2px solid var(--border);
  padding: 0.875rem 1rem;
}
.budget-table .phase-row td { background: var(--accent-light); font-weight: 700; }
.variance-pos { color: var(--success); }
.variance-neg { color: var(--danger); }
/* Status badges in budget table are read-only */
.budget-table .badge { cursor: default; pointer-events: none; }

/* =========================================================
   Milestones Timeline
   ========================================================= */
.milestones-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 2rem;
}
.milestones-timeline::before {
  content: '';
  position: absolute;
  left: 0.625rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.milestone-card {
  position: relative;
  background: var(--bg-card);
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
  transition: background-color 0.2s ease;
}
.milestone-card::before {
  content: '';
  position: absolute;
  left: -1.6rem;
  top: 1.125rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-page);
  z-index: 1;
}
.milestone-card.done::before { background: var(--success); }
.milestone-card.overdue::before { background: var(--danger); }

.milestone-card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 0.75rem; }
.milestone-card-name { font-weight: 700; font-size: 0.95rem; color: var(--text-primary); }
.milestone-card-actions { display: flex; gap: 0.375rem; flex-shrink: 0; }
.milestone-card-date { font-size: 0.8rem; color: var(--text-secondary); margin-top: 0.25rem; }
.milestone-card-note { font-size: 0.825rem; color: var(--text-secondary); margin-top: 0.5rem; font-style: italic; border-top: 1px solid var(--border); padding-top: 0.5rem; }

/* =========================================================
   Settings
   ========================================================= */
.settings-card { margin-bottom: 1.25rem; }
.settings-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.375rem; }
.form-label { font-size: 0.85rem; font-weight: 600; color: var(--text-secondary); }
.form-input {
  padding: 0.625rem 0.875rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-input);
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color 0.15s, background 0.2s;
  width: 100%;
}
.form-input:focus { outline: none; border-color: var(--border-focus); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-actions { display: flex; justify-content: flex-end; }
textarea.form-input { resize: vertical; min-height: 80px; }

.danger-zone { background: var(--bg-danger); border-color: var(--border-danger); }
.danger-title { color: var(--text-danger); font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; }
.danger-desc { font-size: 0.875rem; color: var(--text-secondary); margin-bottom: 1rem; }

/* =========================================================
   Modals
   ========================================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
  background: var(--bg-modal);
  border-radius: 1rem;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: background-color 0.2s ease;
}
.modal-large { max-width: 720px; }
.modal-sm { max-width: 360px; }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.125rem 1.5rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-modal);
  z-index: 1;
}
.modal-title { font-size: 1.05rem; font-weight: 700; color: var(--text-primary); }
.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  padding: 0.25rem;
  border-radius: 0.25rem;
  transition: color 0.15s;
}
.modal-close:hover { color: var(--text-primary); }
.modal-body { padding: 1.5rem; flex: 1; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg-modal);
}

/* =========================================================
   Quick Add
   ========================================================= */
.quick-add-options { display: flex; flex-direction: column; gap: 0.625rem; }
.quick-option {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.875rem 1rem;
  border-radius: 0.625rem;
  border: 1px solid var(--border);
  background: var(--bg-quick);
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: background 0.15s, border-color 0.15s;
  text-align: left;
  width: 100%;
}
.quick-option:hover { background: var(--bg-quick-hover); border-color: var(--accent); color: var(--accent); }
.quick-icon { font-size: 1.25rem; }

/* =========================================================
   Task Detail Modal Body
   ========================================================= */
.task-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.task-detail-field { display: flex; flex-direction: column; gap: 0.25rem; }
.task-detail-label { font-size: 0.75rem; font-weight: 700; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.04em; }
.task-detail-value { font-size: 0.9rem; color: var(--text-primary); }
.task-detail-full { grid-column: 1 / -1; }

.notes-section { margin-top: 1rem; }
.notes-title { font-size: 0.9rem; font-weight: 700; color: var(--text-primary); margin-bottom: 0.75rem; }
.note-entry {
  background: var(--bg-note);
  border-radius: 0.5rem;
  padding: 0.875rem 1rem;
  margin-bottom: 0.625rem;
  border: 1px solid var(--border);
}
.note-meta { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.375rem; }
.note-date { font-size: 0.72rem; color: var(--text-muted); }
.note-text { font-size: 0.875rem; color: var(--text-primary); white-space: pre-wrap; word-break: break-word; }
.note-photo { margin-top: 0.5rem; }
.note-photo img {
  max-width: 100%;
  max-height: 180px;
  border-radius: 0.375rem;
  cursor: pointer;
  object-fit: cover;
  border: 1px solid var(--border);
  transition: opacity 0.15s;
}
.note-photo img:hover { opacity: 0.85; }

.add-note-form { display: flex; flex-direction: column; gap: 0.625rem; margin-top: 0.75rem; }
.file-input-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.875rem;
  border-radius: 0.375rem;
  border: 1px dashed var(--border-input);
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: var(--bg-input);
  transition: border-color 0.15s;
}
.file-input-label:hover { border-color: var(--accent); color: var(--accent); }
.file-input-label input[type="file"] { display: none; }
.file-preview { font-size: 0.75rem; color: var(--text-muted); }

/* =========================================================
   Lightbox
   ========================================================= */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 500;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.lightbox-overlay.open { display: flex; }
.lightbox-overlay img {
  max-width: 100%;
  max-height: 90vh;
  border-radius: 0.5rem;
  object-fit: contain;
  box-shadow: 0 0 60px rgba(0,0,0,0.8);
}
.lightbox-close {
  position: fixed;
  top: 1rem;
  right: 1.25rem;
  background: rgba(255,255,255,0.15);
  border: none;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  border-radius: 50%;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}
.lightbox-close:hover { background: rgba(255,255,255,0.3); }

/* =========================================================
   Toasts
   ========================================================= */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 600;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  pointer-events: none;
}
.toast {
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 0.75rem 1.25rem;
  border-radius: 0.625rem;
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--accent);
  max-width: 320px;
  animation: slideIn 0.25s ease forwards;
  pointer-events: all;
}
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }
.toast.warning { border-color: var(--warning); }
.toast.fade-out { animation: slideOut 0.3s ease forwards; }

@keyframes slideIn {
  from { transform: translateX(110%); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}
@keyframes slideOut {
  from { transform: translateX(0);    opacity: 1; }
  to   { transform: translateX(110%); opacity: 0; }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 768px) {
  .header-inner { gap: 0.75rem; }
  .tab-nav { gap: 0.125rem; }
  .tab-btn { padding: 0.375rem 0.6rem; font-size: 0.78rem; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .cost-cards { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .task-detail-grid { grid-template-columns: 1fr; }
  .section-header { flex-direction: column; align-items: flex-start; }
  .budget-table { font-size: 0.8rem; }
  .budget-table th, .budget-table td { padding: 0.6rem 0.625rem; }
  .milestones-timeline { padding-left: 1.5rem; }
}

@media (max-width: 480px) {
  .brand-title { font-size: 0.95rem; }
  .tab-btn { padding: 0.3rem 0.45rem; font-size: 0.72rem; }
  .header-cta { padding: 0.4rem 0.7rem; font-size: 0.8rem; }
  .task-row { flex-wrap: wrap; }
}