/* ============================================================
   theme.css — Global Design System
   Bestfix Expense Manager
   Palette: Muted Classic · Steel Blue · Forest Green
   ============================================================ */

:root {
  /* Primary – Steel Blue */
  --clr-primary:     #4B6E9B;
  --clr-primary-dk:  #3A5A84;
  --clr-primary-lt:  #EBF0F8;

  /* Success – Forest Green */
  --clr-success:     #3D7A5B;
  --clr-success-dk:  #2F6347;
  --clr-success-lt:  #EBF5EF;

  /* Danger – Dusty Red */
  --clr-danger:      #B85C58;
  --clr-danger-dk:   #9E4744;
  --clr-danger-lt:   #FAEEEE;

  /* Warning – Warm Amber */
  --clr-warning:     #C59A3C;
  --clr-warning-dk:  #A8822F;
  --clr-warning-lt:  #FDF5E3;

  /* Info – Ocean Blue */
  --clr-info:        #3D7F9E;
  --clr-info-dk:     #2F6A84;
  --clr-info-lt:     #EBF4F8;

  /* Surfaces */
  --clr-bg:          #F2F4F8;
  --clr-surface:     #FFFFFF;
  --clr-border:      #DDE2EC;
  --clr-border-lt:   #EEF1F7;

  /* Typography */
  --clr-text:        #2D3748;
  --clr-text-muted:  #6B7A8E;
  --clr-text-light:  #9BA8B5;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(45,55,72,0.07), 0 1px 2px rgba(45,55,72,0.05);
  --shadow-md: 0 4px 8px rgba(45,55,72,0.08), 0 2px 4px rgba(45,55,72,0.05);
  --shadow-lg: 0 10px 20px rgba(45,55,72,0.08), 0 4px 8px rgba(45,55,72,0.05);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  /* Transition */
  --transition: 0.18s ease;
}

/* ── Base ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, 'Noto Sans Thai', sans-serif;
  background-color: var(--clr-bg);
  color: var(--clr-text);
  font-size: 15px;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--clr-text);
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* ── Bootstrap Color Overrides ─────────────── */

/* Buttons */
.btn { border-radius: var(--radius-sm); font-weight: 500; font-size: 0.9rem; transition: all var(--transition); }
.btn-sm { font-size: 0.82rem; padding: 0.3rem 0.7rem; }

.btn-primary { background-color: var(--clr-primary); border-color: var(--clr-primary); color: #fff; }
.btn-primary:hover, .btn-primary:focus, .btn-primary:active { background-color: var(--clr-primary-dk); border-color: var(--clr-primary-dk); color: #fff; }

.btn-success { background-color: var(--clr-success); border-color: var(--clr-success); color: #fff; }
.btn-success:hover, .btn-success:focus, .btn-success:active { background-color: var(--clr-success-dk); border-color: var(--clr-success-dk); color: #fff; }

.btn-danger { background-color: var(--clr-danger); border-color: var(--clr-danger); color: #fff; }
.btn-danger:hover, .btn-danger:focus { background-color: var(--clr-danger-dk); border-color: var(--clr-danger-dk); }

.btn-secondary { background-color: #8795A8; border-color: #8795A8; color: #fff; }
.btn-secondary:hover { background-color: #6B7A8E; border-color: #6B7A8E; }

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

.btn-outline-success { color: var(--clr-success); border-color: var(--clr-success); }
.btn-outline-success:hover { background-color: var(--clr-success); border-color: var(--clr-success); color: #fff; }

.btn-outline-info { color: var(--clr-info); border-color: var(--clr-info); }
.btn-outline-info:hover { background-color: var(--clr-info); border-color: var(--clr-info); color: #fff; }

.btn-outline-light { color: rgba(255,255,255,0.9); border-color: rgba(255,255,255,0.5); }
.btn-outline-light:hover { background-color: rgba(255,255,255,0.15); color: #fff; border-color: rgba(255,255,255,0.8); }

/* Text colors */
.text-primary { color: var(--clr-primary)   !important; }
.text-success { color: var(--clr-success)   !important; }
.text-danger  { color: var(--clr-danger)    !important; }
.text-warning { color: var(--clr-warning)   !important; }
.text-info    { color: var(--clr-info)      !important; }
.text-muted   { color: var(--clr-text-muted) !important; }

/* Background colors */
.bg-primary { background-color: var(--clr-primary) !important; }
.bg-success { background-color: var(--clr-success) !important; }
.bg-danger  { background-color: var(--clr-danger)  !important; }
.bg-warning { background-color: var(--clr-warning) !important; }
.bg-info    { background-color: var(--clr-info)    !important; }

/* Border colors */
.border-primary { border-color: var(--clr-primary) !important; }
.border-success { border-color: var(--clr-success) !important; }
.border-danger  { border-color: var(--clr-danger)  !important; }
.border-warning { border-color: var(--clr-warning) !important; }

/* ── Cards ────────────────────────────────── */
.card {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  background: var(--clr-surface);
}

.card-header {
  background-color: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
  font-weight: 600;
  color: var(--clr-text);
  padding: 0.875rem 1rem;
  border-radius: var(--radius-md) var(--radius-md) 0 0 !important;
}

.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow    { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }

/* ── Accordion ────────────────────────────── */
.accordion-item {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm) !important;
  margin-bottom: 4px;
  overflow: hidden;
}

.accordion-button {
  font-weight: 500;
  color: var(--clr-text);
  background-color: var(--clr-surface);
  font-size: 0.9rem;
  box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
  color: var(--clr-primary);
  background-color: var(--clr-primary-lt);
  box-shadow: none !important;
}

.accordion-button:focus { box-shadow: none !important; }

/* ── Tables ───────────────────────────────── */
.table { color: var(--clr-text); font-size: 0.9rem; }

.table thead th {
  font-weight: 600;
  color: var(--clr-text-muted);
  border-bottom: 2px solid var(--clr-border);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.6rem 1rem;
}

.table tbody td { padding: 0.65rem 1rem; vertical-align: middle; }

.table-light { background-color: var(--clr-bg) !important; }

.table-hover tbody tr:hover { background-color: var(--clr-primary-lt); }

/* ── Form Controls ────────────────────────── */
.form-control, .form-select {
  border-color: var(--clr-border);
  color: var(--clr-text);
  border-radius: var(--radius-sm);
  font-size: 0.93rem;
  background-color: var(--clr-surface);
}

.form-control:focus, .form-select:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(75, 110, 155, 0.12);
  outline: none;
}

.form-control::placeholder { color: var(--clr-text-light); }

.form-label {
  font-weight: 500;
  font-size: 0.88rem;
  color: var(--clr-text);
  margin-bottom: 0.3rem;
}

.input-group-text {
  background-color: var(--clr-bg);
  border-color: var(--clr-border);
  color: var(--clr-text-muted);
  font-size: 0.88rem;
}

/* ── Modal ────────────────────────────────── */
.modal-content {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.modal-header {
  border-bottom: 1px solid var(--clr-border);
  padding: 1rem 1.25rem;
}

.modal-header .modal-title {
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--clr-text);
}

.modal-footer { border-top: 1px solid var(--clr-border); padding: 0.875rem 1.25rem; }
.modal-body   { padding: 1.25rem; }

.modal-header.bg-success {
  background-color: var(--clr-success) !important;
  border-bottom: none;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* ── Alerts ───────────────────────────────── */
.alert { border-radius: var(--radius-sm); font-size: 0.9rem; }

.alert-success {
  background-color: var(--clr-success-lt);
  border-color: #B6DACA;
  color: var(--clr-success-dk);
}
.alert-danger {
  background-color: var(--clr-danger-lt);
  border-color: #F2C0BF;
  color: var(--clr-danger-dk);
}
.alert-info {
  background-color: var(--clr-info-lt);
  border-color: #B9D9E8;
  color: var(--clr-info-dk);
}
.alert-warning {
  background-color: var(--clr-warning-lt);
  border-color: #E8D19A;
  color: var(--clr-warning-dk);
}

/* ── Badges ───────────────────────────────── */
.badge.bg-primary { background-color: var(--clr-primary) !important; }
.badge.bg-success { background-color: var(--clr-success) !important; }
.badge.bg-danger  { background-color: var(--clr-danger)  !important; }
.badge.bg-warning { background-color: var(--clr-warning) !important; color: #fff !important; }
.badge.bg-info    { background-color: var(--clr-info)    !important; }

/* ── Header Nav ───────────────────────────── */
.site-header {
  background-color: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  box-shadow: var(--shadow-sm);
}

.site-header .brand-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-primary);
  letter-spacing: -0.02em;
  text-decoration: none;
}

/* ── Bottom Nav ───────────────────────────── */
body { padding-bottom: 90px; }

.bottom-nav {
  z-index: 1030;
  background-color: var(--clr-surface) !important;
  border-top: 1px solid var(--clr-border) !important;
  box-shadow: 0 -2px 8px rgba(45,55,72,0.06);
}

.bottom-nav .nav-link {
  color: var(--clr-text-light);
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 500;
  transition: color var(--transition);
  padding: 0.35rem 0.5rem;
}

.bottom-nav .nav-link i {
  display: block;
  font-size: 1.35rem;
  margin-bottom: 2px;
  transition: color var(--transition);
  color: var(--clr-text-light);
}

.bottom-nav .nav-link.active,
.bottom-nav .nav-link.active i { color: var(--clr-primary); }

.bottom-nav .nav-link:hover { background-color: var(--clr-primary-lt); color: var(--clr-primary); }
.bottom-nav .nav-link:hover i { color: var(--clr-primary); }

/* ── Dashboard welcome card ───────────────── */
.welcome-section {
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-primary-dk) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

.welcome-section h2,
.welcome-section h3 { color: #fff; }

.header-avatar {
  border: 3px solid rgba(255,255,255,0.6) !important;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15) !important;
}

/* ── Page Title ───────────────────────────── */
.page-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--clr-text);
  text-align: center;
  margin-bottom: 1.25rem;
}

/* ── Spinner ──────────────────────────────── */
.spinner-border { color: var(--clr-primary); }

/* ── Misc ─────────────────────────────────── */
.fw-semibold { font-weight: 600; }