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

:root {
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --radius: 8px;
  --radius-sm: 4px;
  --transition: 0.15s ease;
  --c-active:    #22c55e;
  --c-planning:  #94a3b8;
  --c-hold:      #f59e0b;
  --c-completed: #3b82f6;
  --c-overdue:   #ef4444;
}

[data-theme="dark"] {
  --bg:        #0f1117;
  --surface:   #1a1d27;
  --surface-2: #252836;
  --border:    #2d3148;
  --text:      #e2e8f0;
  --text-muted:#8892a4;
  --text-dim:  #4a5568;
  --accent:    #4f8ef7;
  --accent-h:  #6ba3ff;
  color-scheme: dark;
}

[data-theme="light"] {
  --bg:        #f0f4fa;
  --surface:   #ffffff;
  --surface-2: #f8fafc;
  --border:    #dde3f0;
  --text:      #1a202c;
  --text-muted:#64748b;
  --text-dim:  #94a3b8;
  --accent:    #3b6fd4;
  --accent-h:  #2b5abf;
  color-scheme: light;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  font-size: 14px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-h); }

/* === Nav === */
.nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  height: 56px;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.nav-brand span { color: var(--accent); }

.nav-links { display: flex; gap: 0.25rem; }

.nav-links a {
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text);
  background: var(--surface-2);
}

.nav-end {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-left: auto;
}

.nav-user {
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
}

.btn-icon {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  transition: var(--transition);
  font-family: var(--font);
  white-space: nowrap;
}
.btn-icon:hover { color: var(--text); border-color: var(--text-muted); }

/* === Layout === */
.container { max-width: 1200px; margin: 0 auto; padding: 1.5rem; }

.page-header {
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-title { font-size: 1.2rem; font-weight: 700; }

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  font-family: var(--font);
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-h); color: #fff; }
.btn-secondary { background: var(--surface-2); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--text-muted); }
.btn-danger { background: rgba(239,68,68,0.1); color: var(--c-overdue); border-color: rgba(239,68,68,0.25); }
.btn-sm { padding: 0.25rem 0.625rem; font-size: 0.8rem; border-radius: var(--radius-sm); }

/* === Badges === */
.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.badge-active    { background: rgba(34,197,94,0.15);  color: var(--c-active);    }
.badge-planning  { background: rgba(148,163,184,0.15); color: var(--c-planning);  }
.badge-hold      { background: rgba(245,158,11,0.15);  color: var(--c-hold);      }
.badge-completed { background: rgba(59,130,246,0.15);  color: var(--c-completed); }

.phase-badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-sm);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--surface-2);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.doc-type-badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 600;
  background: rgba(79,142,247,0.12);
  color: var(--accent);
}

.contact-type-badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--surface-2);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* === Progress Bar === */
.progress-wrap { display: flex; align-items: center; gap: 0.5rem; }

.progress-track {
  flex: 1;
  height: 6px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.4s ease;
}
.progress-fill.done { background: var(--c-active); }
.progress-label { font-size: 0.75rem; color: var(--text-muted); min-width: 2.5rem; text-align: right; }

/* === Cards === */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.card-link {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: var(--transition);
  color: inherit;
  cursor: pointer;
}
.card-link:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
  color: inherit;
}

/* === Dashboard === */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.875rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
}
.stat-value { font-size: 1.75rem; font-weight: 700; line-height: 1; margin-bottom: 0.25rem; }
.stat-value.danger  { color: var(--c-overdue);   }
.stat-value.warn    { color: var(--c-hold);      }
.stat-value.good    { color: var(--c-active);    }
.stat-label { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.project-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.project-card-name { font-weight: 600; font-size: 0.95rem; line-height: 1.35; }
.project-card-client { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.75rem; }
.project-card-meta { display: flex; gap: 0.5rem; margin-bottom: 0.875rem; flex-wrap: wrap; }
.project-card-progress { margin-bottom: 0.75rem; }
.project-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}
.overdue-badge { color: var(--c-overdue); font-weight: 600; }

/* === Project Detail === */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 1rem;
  transition: var(--transition);
}
.back-link:hover { color: var(--text); }

.project-header {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.project-header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}
.project-name { font-size: 1.4rem; font-weight: 700; }
.project-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.project-date-row { font-size: 0.82rem; color: var(--text-muted); }
.project-desc {
  color: var(--text-muted);
  font-size: 0.875rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  margin-top: 1rem;
  white-space: pre-wrap;
}
.progress-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.progress-row .progress-wrap { flex: 1; min-width: 160px; }
.progress-edit-wrap { display: flex; align-items: center; gap: 0.5rem; }
.progress-edit-wrap input {
  width: 60px;
  padding: 0.25rem 0.5rem;
  font-size: 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text);
  font-family: var(--font);
}

/* === Tabs === */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.tab-btn {
  padding: 0.625rem 1.1rem;
  border: none;
  background: none;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--transition);
  white-space: nowrap;
  font-family: var(--font);
}
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-btn:hover:not(.active) { color: var(--text); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* === Milestones === */
.milestone-list { display: flex; flex-direction: column; gap: 0.5rem; }

.milestone-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.875rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: opacity var(--transition);
}
.milestone-item.completed { opacity: 0.5; }

.milestone-check {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 2px solid var(--border);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 2px;
  background: var(--surface);
  transition: var(--transition);
  position: relative;
}
.milestone-check:checked { background: var(--accent); border-color: var(--accent); }
.milestone-check:checked::after {
  content: '✓';
  position: absolute;
  top: -2px;
  left: 2px;
  font-size: 12px;
  color: #fff;
  font-weight: 700;
}

.milestone-body { flex: 1; min-width: 0; }
.milestone-title { font-weight: 500; margin-bottom: 0.25rem; }
.milestone-completed .milestone-title { text-decoration: line-through; }
.milestone-meta { font-size: 0.75rem; color: var(--text-muted); display: flex; gap: 0.75rem; flex-wrap: wrap; }
.overdue-text { color: var(--c-overdue) !important; font-weight: 600; }

/* === Documents === */
.doc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 0.75rem; }

.doc-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.doc-card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 0.5rem; }
.doc-card-title { font-weight: 600; font-size: 0.875rem; }
.doc-card-meta { font-size: 0.75rem; color: var(--text-muted); display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* === Contacts === */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 0.75rem; }
.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}
.contact-card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 0.5rem; margin-bottom: 0.375rem; }
.contact-name { font-weight: 600; font-size: 0.9rem; }
.contact-company { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.625rem; }
.contact-detail { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.25rem; display: flex; align-items: center; gap: 0.375rem; }
.contact-detail a { color: var(--text-muted); }
.contact-detail a:hover { color: var(--accent); }

/* === Filters === */
.filters { display: flex; gap: 0.625rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
.filter-select, .filter-input {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 0.45rem 0.75rem;
  font-size: 0.875rem;
  font-family: var(--font);
  transition: var(--transition);
}
.filter-select:focus, .filter-input:focus { outline: none; border-color: var(--accent); }
.filter-input { flex: 1; min-width: 140px; }

/* === Section header === */
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.section-title { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); }

/* === Form modal / inline form === */
.inline-form {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.875rem; }
.form-group { margin-bottom: 0.875rem; }
label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
input[type="text"], input[type="email"], input[type="password"], input[type="number"],
input[type="date"], input[type="url"], textarea, select {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 0.55rem 0.8rem;
  font-size: 0.875rem;
  font-family: var(--font);
  transition: var(--transition);
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(79,142,247,0.1); }
textarea { resize: vertical; min-height: 90px; }
.form-actions { display: flex; gap: 0.5rem; justify-content: flex-end; margin-top: 0.5rem; }
.error-msg { color: var(--c-overdue); font-size: 0.8rem; margin-top: 0.375rem; }

/* === Site Reports === */
.report-item {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 0.75rem;
}
.report-header { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 0.625rem; }
.report-date { font-weight: 600; }
.report-author { font-size: 0.78rem; color: var(--text-muted); }
.report-summary { font-size: 0.875rem; white-space: pre-wrap; }
.report-issues { margin-top: 0.625rem; font-size: 0.85rem; color: var(--c-overdue); padding-left: 1rem; border-left: 2px solid var(--c-overdue); white-space: pre-wrap; }
.report-photos { margin-top: 0.625rem; font-size: 0.8rem; }

/* === Login === */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1.5rem; }
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 370px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}
.login-brand { text-align: center; margin-bottom: 1.75rem; }
.login-logo { font-size: 1.5rem; font-weight: 700; letter-spacing: 0.08em; color: var(--text); }
.login-logo span { color: var(--accent); }
.login-sub { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.25rem; }

/* === Loading / Empty === */
.loading { display: flex; align-items: center; justify-content: center; padding: 3rem; color: var(--text-muted); }
.spinner { width: 18px; height: 18px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.65s linear infinite; margin-right: 0.625rem; flex-shrink: 0; }
@keyframes spin { to { transform: rotate(360deg); } }

.empty-state { text-align: center; padding: 3rem 1.5rem; color: var(--text-muted); }
.empty-icon { font-size: 2.25rem; margin-bottom: 0.625rem; }
.empty-text { font-size: 0.875rem; }

/* === Notes section === */
.notes-box {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.875rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  white-space: pre-wrap;
}

/* === Phase groups === */
.phase-group { margin-bottom: 1.25rem; }
.phase-group-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
  padding-bottom: 0.375rem;
  border-bottom: 1px solid var(--border);
}

/* === Responsive === */
@media (max-width: 640px) {
  .nav { padding: 0 1rem; }
  .nav-user { display: none; }
  .container { padding: 1rem; }
  .project-grid, .doc-grid, .contact-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .project-name { font-size: 1.15rem; }
  .form-row { grid-template-columns: 1fr; }
}