/* ── Base font ─────────────────────────────────────────────────── */
:root {
  --font:   'Vazirmatn', 'Tahoma', 'Arial Unicode MS', sans-serif;
  --brand:  #1a3a6b;
  --brand2: #2563a8;
  --brand-light: #e8eef7;

  --fs-xs:  0.85rem;
  --fs-sm:  0.95rem;
  --fs-base:1.05rem;
  --fs-md:  1.15rem;
  --fs-lg:  1.3rem;
  --fs-xl:  1.55rem;
  --fs-2xl: 1.9rem;
}

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

html {
  font-size: 16px;
}

body {
  font-family: var(--font);
  font-size: var(--fs-base);
  line-height: 1.85;
  background: #f4f6fb;
  color: #1e2a3a;
  -webkit-font-smoothing: antialiased;
}

/* ── Typography ────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font);
  font-weight: 700;
  line-height: 1.4;
}

h4 { font-size: var(--fs-xl); }
h5 { font-size: var(--fs-lg); }
h6 { font-size: var(--fs-md); }

p, li, td, th, label, input, select, textarea, button, a, small, span {
  font-family: var(--font) !important;
}

small, .small { font-size: var(--fs-sm) !important; }

.fs-6 { font-size: var(--fs-sm) !important; }
.fs-5 { font-size: var(--fs-md) !important; }

/* ── Navbar ────────────────────────────────────────────────────── */
.navbar {
  background: var(--brand) !important;
  padding: .75rem 1.25rem;
  box-shadow: 0 2px 12px rgba(0,0,0,.18);
}

.navbar-brand {
  font-size: var(--fs-lg) !important;
  font-weight: 800 !important;
  letter-spacing: .01em;
}

.nav-link {
  font-size: var(--fs-sm) !important;
  font-weight: 500 !important;
  padding: .4rem .75rem !important;
  border-radius: 6px;
  transition: background .15s;
}
.nav-link:hover { background: rgba(255,255,255,.12); }

.navbar-text { font-size: var(--fs-sm) !important; }

/* ── Cards ─────────────────────────────────────────────────────── */
.card {
  border: none;
  border-radius: 14px;
  box-shadow: 0 2px 16px rgba(0,0,0,.07);
  overflow: hidden;
}

.card-header {
  background: var(--brand);
  color: #fff;
  font-size: var(--fs-md) !important;
  font-weight: 700;
  padding: .9rem 1.4rem;
  border-radius: 0 !important;
}

.card-body {
  padding: 1.4rem;
}

/* ── Stat cards ─────────────────────────────────────────────────── */
.stat-card {
  border-radius: 14px;
  padding: 1.6rem 1.8rem;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  box-shadow: 0 4px 18px rgba(0,0,0,.13);
}
.stat-card .icon { font-size: 2.8rem; opacity: .85; }
.stat-card .num  { font-size: 2.2rem; font-weight: 800; line-height: 1.1; }
.stat-card .lbl  { font-size: var(--fs-sm); opacity: .9; margin-top: .15rem; }

/* ── Forms ──────────────────────────────────────────────────────── */
.form-label {
  font-size: var(--fs-base) !important;
  font-weight: 600 !important;
  margin-bottom: .4rem;
  color: #2d3d55;
}

.form-control,
.form-select {
  font-family: var(--font) !important;
  font-size: var(--fs-base) !important;
  padding: .55rem .9rem;
  border-radius: 8px;
  border: 1.5px solid #cdd5e0;
  transition: border-color .2s, box-shadow .2s;
  line-height: 1.7;
}
.form-control:focus,
.form-select:focus {
  border-color: var(--brand2);
  box-shadow: 0 0 0 3px rgba(37,99,168,.15);
}

textarea.form-control { line-height: 1.8; }

.form-check-input {
  width: 1.15em;
  height: 1.15em;
  margin-top: .2em;
}
.form-check-label {
  font-size: var(--fs-base) !important;
  padding-right: .3rem;
}
.form-check { min-height: 1.6rem; }

.input-group-text {
  font-family: var(--font) !important;
  font-size: var(--fs-base) !important;
  background: #f0f4fa;
  border-color: #cdd5e0;
}

/* ── Buttons ────────────────────────────────────────────────────── */
.btn {
  font-family: var(--font) !important;
  font-size: var(--fs-base) !important;
  font-weight: 600 !important;
  border-radius: 8px;
  padding: .5rem 1.1rem;
  transition: all .18s;
}
.btn-lg {
  font-size: var(--fs-md) !important;
  padding: .7rem 1.4rem;
}
.btn-sm {
  font-size: var(--fs-sm) !important;
  padding: .3rem .8rem;
}

.btn-primary  { background: var(--brand); border-color: var(--brand); }
.btn-primary:hover { background: #142e57; border-color: #142e57; }

/* ── Tables ─────────────────────────────────────────────────────── */
.table {
  font-size: var(--fs-base) !important;
}
.table th {
  background: var(--brand-light);
  font-weight: 700;
  font-size: var(--fs-sm) !important;
  padding: .75rem 1rem;
  color: var(--brand);
  letter-spacing: .01em;
}
.table td {
  padding: .7rem 1rem;
  vertical-align: middle;
}
.table-sm th, .table-sm td { padding: .5rem .85rem; }

/* ── Badges ─────────────────────────────────────────────────────── */
.badge {
  font-family: var(--font) !important;
  font-size: var(--fs-xs) !important;
  font-weight: 600 !important;
  padding: .35em .75em;
  border-radius: 20px;
}

/* ── Alerts ─────────────────────────────────────────────────────── */
.alert {
  font-size: var(--fs-base) !important;
  border-radius: 10px;
  padding: 1rem 1.3rem;
}

/* ── Page header ────────────────────────────────────────────────── */
.page-header {
  background: #fff;
  border-radius: 14px;
  padding: 1.1rem 1.6rem;
  margin-bottom: 1.6rem;
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .6rem;
}
.page-header h4 {
  margin: 0;
  color: var(--brand);
  font-size: var(--fs-xl) !important;
  font-weight: 800;
}

/* ── Login ──────────────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand2) 100%);
}
.login-card {
  width: 100%;
  max-width: 440px;
  border-radius: 18px;
  overflow: hidden;
}
.login-card .card-header {
  font-size: var(--fs-lg) !important;
  padding: 2rem 1.5rem 1.5rem;
  text-align: center;
}
.login-card h5 { font-size: var(--fs-xl) !important; }

/* ── List group ─────────────────────────────────────────────────── */
.list-group-item {
  font-family: var(--font) !important;
  font-size: var(--fs-base) !important;
  padding: .8rem 1.2rem;
}

/* ── Misc ───────────────────────────────────────────────────────── */
.section-divider {
  border: none;
  border-top: 2px solid var(--brand-light);
  margin: 1.6rem 0;
}

.student-row:hover { background: var(--brand-light); cursor: pointer; }

.step-dot {
  width: 32px; height: 32px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: var(--fs-sm); font-weight: 700; flex-shrink: 0;
}

.modal-title { font-size: var(--fs-lg) !important; font-weight: 700 !important; }
.modal-body  { font-size: var(--fs-base) !important; }

code {
  font-size: var(--fs-sm) !important;
  background: #eef2f8;
  padding: .15em .45em;
  border-radius: 5px;
  color: var(--brand);
}

footer { font-size: var(--fs-sm) !important; }

/* ── Progress bars ──────────────────────────────────────────────── */
.progress { border-radius: 8px; }

/* ── Scrollbar (optional, WebKit) ───────────────────────────────── */
::-webkit-scrollbar { width: 7px; height: 7px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: #c0cfe0; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--brand2); }