/* ============================================================
   Budget Tracker — Stylesheet
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --font: 'Sarabun', 'Noto Sans Thai', system-ui, sans-serif;
  --bg:        #F7F6F3;
  --surface:   #FFFFFF;
  --border:    #E2E0DA;
  --text:      #1A1917;
  --muted:     #6B6963;
  --radius:    8px;

  --green:     #2E7D32; --green-bg: #EBF5E9; --green-bar: #4CAF50;
  --yellow:    #7B5E00; --yellow-bg:#FFF8E1; --yellow-bar:#FFC107;
  --red:       #B71C1C; --red-bg:  #FDECEA; --red-bar:   #E53935;
  --blue:      #1A3F6F; --blue-bg: #E8F1FB; --blue-accent:#2563EB;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ── NAVBAR ── */
.navbar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 1.5rem;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  color: var(--text);
  white-space: nowrap;
}
.navbar-menu {
  display: flex;
  list-style: none;
  gap: 4px;
  flex: 1;
}
.nav-link {
  display: block;
  padding: 6px 12px;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--muted);
  font-size: 14px;
  transition: background .15s, color .15s;
}
.nav-link:hover, .nav-link.active { background: var(--bg); color: var(--text); }
.navbar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}
.user-name { font-size: 13px; color: var(--muted); }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s, border-color .15s;
  white-space: nowrap;
}
.btn:hover { background: var(--bg); }
.btn-primary { background: var(--blue-accent); border-color: var(--blue-accent); color: #fff; }
.btn-primary:hover { background: #1d4ed8; border-color: #1d4ed8; }
.btn-danger  { background: var(--red-bar); border-color: var(--red-bar); color: #fff; }
.btn-danger:hover  { background: #c62828; }
.btn-ghost   { background: transparent; border-color: transparent; color: var(--muted); }
.btn-ghost:hover   { background: var(--bg); color: var(--text); }
.btn-sm      { padding: 4px 10px; font-size: 13px; }

/* ── BADGES ── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .3px;
}
.badge-admin   { background: var(--blue-bg); color: var(--blue); }
.badge-user    { background: var(--bg);      color: var(--muted); }
.badge-success { background: var(--green-bg); color: var(--green); }
.badge-warning { background: var(--yellow-bg); color: var(--yellow); }
.badge-danger  { background: var(--red-bg);  color: var(--red); }
.badge-pending { background: var(--yellow-bg); color: var(--yellow); }
.badge-approved{ background: var(--green-bg); color: var(--green); }
.badge-active  { background: var(--green-bg); color: var(--green); }
.badge-closed  { background: var(--bg);       color: var(--muted); }

/* ── LAYOUT ── */
.main-content { max-width: 1160px; margin: 0 auto; padding: 2rem 1.5rem; }
.page-header  { margin-bottom: 2rem; }
.page-header h1 { font-size: 22px; font-weight: 600; }
.page-header p  { color: var(--muted); font-size: 14px; margin-top: 4px; }

.section { margin-bottom: 2rem; }

/* ── STAT CARDS ── */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
}
.stat-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .6px; margin-bottom: 6px; }
.stat-value { font-size: 26px; font-weight: 600; }
.stat-value.green  { color: var(--green); }
.stat-value.yellow { color: var(--yellow); }
.stat-value.red    { color: var(--red); }
.stat-value.blue   { color: var(--blue-accent); }

/* ── PROGRESS BAR ── */
.progress-wrap { background: var(--bg); border-radius: 6px; height: 8px; overflow: hidden; margin: 8px 0; }
.progress-bar  { height: 100%; border-radius: 6px; transition: width .4s; }
.progress-bar.success { background: var(--green-bar); }
.progress-bar.warning { background: var(--yellow-bar); }
.progress-bar.danger  { background: var(--red-bar); }

/* ── PROJECT CARDS ── */
.project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 1.25rem; }
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: border-color .15s, box-shadow .15s;
}
.project-card:hover {
  border-color: var(--blue-accent);
  box-shadow: 0 2px 12px rgba(37,99,235,.08);
}
.project-card-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 12px; }
.project-name { font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.project-dates { font-size: 12px; color: var(--muted); }
.project-budget-row { display: flex; justify-content: space-between; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.project-remaining { font-weight: 600; }
.pct-label { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* ── TABLE ── */
.table-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.table-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.table-title { font-weight: 600; font-size: 15px; flex: 1; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 10px 16px; font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; border-bottom: 1px solid var(--border); background: var(--bg); }
td { padding: 10px 16px; border-bottom: 1px solid var(--border); font-size: 14px; vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg); }
.amount-cell { font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }

/* ── FORMS ── */
.form-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 1.75rem; max-width: 600px; }
.form-grid { display: grid; gap: 1.25rem; }
.form-grid-2 { grid-template-columns: 1fr 1fr; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 14px;
  background: var(--surface);
  color: var(--text);
  transition: border-color .15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue-accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-hint { font-size: 12px; color: var(--muted); margin-top: 4px; }
.form-actions { display: flex; gap: 10px; margin-top: 1.5rem; }

/* ── ALERTS ── */
.alert { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 1rem; font-size: 14px; }
.alert-success { background: var(--green-bg); color: var(--green); border: 1px solid #A5D6A7; }
.alert-danger  { background: var(--red-bg);   color: var(--red);   border: 1px solid #FFCDD2; }
.alert-warning { background: var(--yellow-bg); color: var(--yellow); border: 1px solid #FFE082; }
.alert-info    { background: var(--blue-bg);  color: var(--blue);  border: 1px solid #BBDEFB; }

/* ── FILTER ROW ── */
.filter-row { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 1.25rem; }
.filter-row label { font-size: 12px; font-weight: 600; display: block; margin-bottom: 4px; }
.filter-row select, .filter-row input { padding: 6px 10px; border: 1px solid var(--border); border-radius: var(--radius); font-family: var(--font); font-size: 13px; background: var(--surface); }

/* ── LOG TABLE ── */
.log-action { font-family: monospace; font-size: 12px; padding: 2px 7px; border-radius: 4px; background: var(--bg); }

/* ── FOOTER ── */
.footer { text-align: center; padding: 2rem; font-size: 12px; color: var(--muted); border-top: 1px solid var(--border); margin-top: 3rem; }

/* ── RESPONSIVE ── */
@media (max-width: 680px) {
  .form-grid-2 { grid-template-columns: 1fr; }
  .project-grid { grid-template-columns: 1fr; }
  .stat-grid    { grid-template-columns: 1fr 1fr; }
  .navbar-menu  { display: none; }
}