/* =====================================================================
   School Management System — visual theme
   Palette: Ink Navy (structure) + Exam Gold (one sparing accent)
   Type: Fraunces (headings) + Figtree (body/UI/data)
   ===================================================================== */

:root {
  /* Brand palette */
  --brand-primary: #1F3B57;       /* Ink Navy */
  --brand-primary-dark: #12222F;  /* Ink Navy, hover/active */
  --brand-primary-light: #EDF1F4; /* tinted backgrounds */
  --brand-accent: #C9922E;        /* Exam Gold — use sparingly */
  --brand-accent-dark: #A87A22;
  --paper: #F5F6F3;
  --ink: #26313D;                 /* body text, warmer than pure black */
  --sidebar-width: 250px;

  /* Retuned semantic colors — muted, better contrast than Bootstrap stock */
  --brand-success: #2B6E52;
  --brand-danger: #B23B3B;
  --brand-info: #2E6E8E;

  /* ---- Bootstrap 5.3 variable overrides (cascades to every component) ---- */
  --bs-primary: var(--brand-primary);
  --bs-primary-rgb: 31, 59, 87;
  --bs-primary-text-emphasis: var(--brand-primary-dark);
  --bs-primary-bg-subtle: var(--brand-primary-light);
  --bs-primary-border-subtle: #c3ceD7;

  --bs-success: var(--brand-success);
  --bs-success-rgb: 43, 110, 82;
  --bs-danger: var(--brand-danger);
  --bs-danger-rgb: 178, 59, 59;
  --bs-info: var(--brand-info);
  --bs-info-rgb: 46, 110, 142;

  --bs-link-color: var(--brand-primary);
  --bs-link-color-rgb: 31, 59, 87;
  --bs-link-hover-color: var(--brand-primary-dark);
  --bs-link-hover-color-rgb: 18, 34, 47;

  --bs-body-color: var(--ink);
  --bs-body-bg: var(--paper);
  --bs-border-color: #E3E1D9;

  --bs-font-sans-serif: 'Figtree', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: var(--paper);
  font-family: 'Figtree', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--brand-primary-dark);
}

/* Tabular data and form fields always stay in the body face, never the display serif */
table, .form-control, .form-select, .btn, .badge, input, textarea, select {
  font-family: 'Figtree', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* =====================================================================
   Layout shell
   ===================================================================== */

.topbar {
  background-color: var(--brand-primary);
}

.navbar-brand {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.sidebar {
  width: var(--sidebar-width);
  min-height: calc(100vh - 56px);
  background: #ffffff;
  border-right: 1px solid var(--bs-border-color);
}

.sidebar .nav-link {
  color: #4A5568;
  border-radius: 8px;
  padding: 0.6rem 0.9rem;
  font-weight: 500;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.sidebar .nav-link:hover {
  background-color: var(--brand-primary-light);
  color: var(--brand-primary);
}

.sidebar .nav-link.active {
  background-color: var(--brand-primary);
  color: #fff;
}

.main-content {
  min-height: calc(100vh - 56px);
}

footer {
  font-family: 'Figtree', sans-serif;
}

/* =====================================================================
   Cards — flat and paper-like, hairline border instead of a heavy shadow
   ===================================================================== */

.card {
  border: 1px solid var(--bs-border-color);
  border-radius: 10px;
  box-shadow: none;
}

.stat-card {
  border: none;
  border-radius: 10px;
  color: #fff;
  box-shadow: 0 2px 8px rgba(18, 34, 47, 0.12);
}

.stat-card .stat-icon {
  font-size: 2rem;
  opacity: 0.85;
}

/* Stat-card gradients — one cohesive family drawn from the brand palette */
.bg-students   { background: linear-gradient(135deg, #1F3B57, #3A6489); }
.bg-teachers   { background: linear-gradient(135deg, #2B6E52, #3E9873); }
.bg-classes    { background: linear-gradient(135deg, #A87A22, #C9922E); }
.bg-attendance { background: linear-gradient(135deg, #5B3A73, #85579E); }

/* =====================================================================
   Tables
   ===================================================================== */

.table thead th {
  background-color: var(--brand-primary-light);
  border-bottom: none;
  font-weight: 600;
  color: var(--brand-primary-dark);
}

/* =====================================================================
   Buttons — full state coverage so hover/active/focus match the brand,
   not Bootstrap's baked-in blue shades
   ===================================================================== */

.btn {
  border-radius: 8px;
  font-weight: 500;
}

.btn-primary {
  --bs-btn-bg: var(--brand-primary);
  --bs-btn-border-color: var(--brand-primary);
  --bs-btn-hover-bg: var(--brand-primary-dark);
  --bs-btn-hover-border-color: var(--brand-primary-dark);
  --bs-btn-active-bg: var(--brand-primary-dark);
  --bs-btn-active-border-color: var(--brand-primary-dark);
  --bs-btn-disabled-bg: var(--brand-primary);
  --bs-btn-disabled-border-color: var(--brand-primary);
  --bs-btn-focus-shadow-rgb: 31, 59, 87;
}

.btn-outline-primary {
  --bs-btn-color: var(--brand-primary);
  --bs-btn-border-color: var(--brand-primary);
  --bs-btn-hover-bg: var(--brand-primary);
  --bs-btn-hover-border-color: var(--brand-primary);
  --bs-btn-active-bg: var(--brand-primary);
  --bs-btn-active-border-color: var(--brand-primary);
  --bs-btn-focus-shadow-rgb: 31, 59, 87;
}

.btn-success {
  --bs-btn-bg: var(--brand-success);
  --bs-btn-border-color: var(--brand-success);
  --bs-btn-hover-bg: #204F3B;
  --bs-btn-hover-border-color: #204F3B;
  --bs-btn-active-bg: #204F3B;
  --bs-btn-active-border-color: #204F3B;
}

.btn-outline-success {
  --bs-btn-color: var(--brand-success);
  --bs-btn-border-color: var(--brand-success);
  --bs-btn-hover-bg: var(--brand-success);
  --bs-btn-hover-border-color: var(--brand-success);
  --bs-btn-active-bg: var(--brand-success);
  --bs-btn-active-border-color: var(--brand-success);
}

.btn-danger {
  --bs-btn-bg: var(--brand-danger);
  --bs-btn-border-color: var(--brand-danger);
  --bs-btn-hover-bg: #8C2E2E;
  --bs-btn-hover-border-color: #8C2E2E;
  --bs-btn-active-bg: #8C2E2E;
  --bs-btn-active-border-color: #8C2E2E;
}

.btn-outline-danger {
  --bs-btn-color: var(--brand-danger);
  --bs-btn-border-color: var(--brand-danger);
  --bs-btn-hover-bg: var(--brand-danger);
  --bs-btn-hover-border-color: var(--brand-danger);
  --bs-btn-active-bg: var(--brand-danger);
  --bs-btn-active-border-color: var(--brand-danger);
}

/* A small, deliberate use of the accent — reserved for the single most
   important action on a screen (e.g. recording a fee payment) */
.btn-accent {
  background-color: var(--brand-accent);
  border-color: var(--brand-accent);
  color: #fff;
}
.btn-accent:hover, .btn-accent:active {
  background-color: var(--brand-accent-dark);
  border-color: var(--brand-accent-dark);
  color: #fff;
}

/* =====================================================================
   Forms
   ===================================================================== */

.form-control, .form-select {
  border-radius: 8px;
  border-color: #D8DCE1;
}

.form-control:focus, .form-select:focus {
  border-color: #7C93A8;
  box-shadow: 0 0 0 0.25rem rgba(31, 59, 87, 0.15);
}

.form-check-input:checked {
  background-color: var(--brand-primary);
  border-color: var(--brand-primary);
}

.form-check-input:focus {
  box-shadow: 0 0 0 0.25rem rgba(31, 59, 87, 0.15);
}

.form-label {
  font-weight: 500;
  color: var(--brand-primary-dark);
}

/* =====================================================================
   Badges, pagination, nav-tabs, dropdowns — small components that
   otherwise keep Bootstrap's default blue
   ===================================================================== */

.badge.bg-primary { background-color: var(--brand-primary) !important; }
.badge.bg-success { background-color: var(--brand-success) !important; }
.badge.bg-danger  { background-color: var(--brand-danger) !important; }
.badge.bg-info    { background-color: var(--brand-info) !important; }

.page-link {
  color: var(--brand-primary);
}
.page-link:hover {
  color: var(--brand-primary-dark);
  background-color: var(--brand-primary-light);
}
.page-item.active .page-link {
  background-color: var(--brand-primary);
  border-color: var(--brand-primary);
}

.nav-tabs .nav-link.active {
  color: var(--brand-primary);
  font-weight: 600;
  border-color: var(--bs-border-color) var(--bs-border-color) #fff;
}
.nav-tabs .nav-link:hover {
  border-color: var(--brand-primary-light) var(--brand-primary-light) var(--bs-border-color);
}

.dropdown-item.active, .dropdown-item:active {
  background-color: var(--brand-primary);
}

/* =====================================================================
   Login page
   ===================================================================== */

.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-dark));
}

.login-card {
  border-radius: 12px;
  overflow: hidden;
  max-width: 420px;
  width: 100%;
  border: none;
}

/* =====================================================================
   Misc
   ===================================================================== */

.student-photo-preview {
  width: 110px;
  height: 110px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--bs-border-color);
}

.text-muted {
  color: #6B7684 !important;
}

@media (max-width: 991.98px) {
  .sidebar {
    position: fixed;
    left: -260px;
    top: 56px;
    z-index: 1030;
    transition: left 0.25s ease;
  }
  .sidebar.show {
    left: 0;
  }
}

/* =======================================================================
   Readability pass — larger base type, spacing, and touch targets.
   ======================================================================= */
html {
  font-size: 17px;
}

body {
  font-size: 1.05rem;
  line-height: 1.65;
}

h1, .h1 { font-size: 2.5rem; }
h2, .h2 { font-size: 2rem; }
h3, .h3 { font-size: 1.6rem; }
h4, .h4 { font-size: 1.35rem; }
h5, .h5 { font-size: 1.15rem; }
h6, .h6 { font-size: 1rem; }

h1, h2, h3, h4, h5, h6 {
  line-height: 1.25;
  margin-bottom: 0.6em;
}

p {
  margin-bottom: 1rem;
}

.btn {
  font-size: 1rem;
  padding: 0.55rem 1.15rem;
  border-radius: 8px;
}
.btn-lg {
  font-size: 1.15rem;
  padding: 0.75rem 1.5rem;
}
.btn-sm {
  font-size: 0.9rem;
}

.form-control,
.form-select {
  font-size: 1rem;
  padding: 0.55rem 0.85rem;
}
.form-label {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}
.form-text {
  font-size: 0.85rem;
}

.table {
  font-size: 0.98rem;
}
.table > :not(caption) > * > * {
  padding: 0.75rem 0.9rem;
}

.card-body {
  padding: 1.5rem;
}
.card-title {
  font-size: 1.2rem;
}

.navbar-brand {
  font-size: 1.3rem;
}
.nav-link {
  font-size: 1rem;
}

.badge {
  font-size: 0.8rem;
  padding: 0.4em 0.7em;
}
small, .small {
  font-size: 0.9rem;
}

.hero h1, .hero .display-1, .hero .display-2, .hero .display-3, .hero .display-4 {
  line-height: 1.15;
}
.feature-card, .pricing-card {
  padding: 1.75rem;
}
.feature-card h3, .pricing-card h3 {
  font-size: 1.4rem;
}
.feature-card p, .pricing-card p {
  font-size: 1rem;
  line-height: 1.6;
}

.text-muted {
  font-size: 0.95rem;
}

.alert {
  font-size: 1rem;
  padding: 1rem 1.25rem;
}

@media (max-width: 576px) {
  html { font-size: 16px; }
  h1, .h1 { font-size: 2rem; }
  h2, .h2 { font-size: 1.6rem; }
}