:root {
  --navy: #0b2447;
  --green: #16a34a;
  --green-d: #15803d;
  --bg: #f4f7fb;
}

body {
  background: var(--bg);
  font-family: Inter, "Segoe UI", system-ui, sans-serif;
}
[data-bs-theme="dark"] body {
  background: #0f172a;
}

/* ---------- Campus background (login/register, hindi naka-login) ---------- */
[data-bs-theme] body.guest {
  background-image:
    linear-gradient(rgba(11, 36, 71, 0.55), rgba(11, 36, 71, 0.55)),
    url("../images/campus.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.side {
  position: fixed;
  inset: 0 auto 0 0;
  width: 230px;
  background: var(--navy);
  padding: 18px 12px;
  overflow-y: auto;
  overscroll-behavior: contain;
  z-index: 1000;
  display: flex;
  flex-direction: column;
}
.side a {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #cfd8e8;
  padding: 10px 14px;
  border-radius: 8px;
  text-decoration: none;
  margin-bottom: 4px;
  font-size: 14px;
}
.side a i {
  width: 18px;
  text-align: center;
}
.side a:hover,
.side a.on {
  background: var(--green);
  color: #fff;
}
.side .brand {
  color: #fff;
  font-weight: 800;
  font-size: 22px;
  padding: 0 6px;
  margin-bottom: 22px;
}
.side .brand:hover {
  background: none;
}
.side .brand img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}
.side .brand small {
  display: block;
  font-size: 7px;
  letter-spacing: 1px;
  font-weight: 400;
  opacity: 0.8;
}

/* Logout pinned to the bottom, with spacing above and below */
.side .out {
  margin-top: auto;
  margin-bottom: 20px;
  border-top: 1px solid #ffffff22;
  border-radius: 0;
  padding-top: 16px;
}
.side a:has(+ .out) {
  margin-bottom: 24px;
}

/* ---------- Layout ---------- */
.main {
  margin-left: 230px;
  min-height: 100vh;
}
.topbar {
  background: var(--navy);
  color: #fff;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  box-shadow: 0 1px 4px #0001;
}
.topbar,
.topbar span,
.topbar a,
.topbar strong {
  color: #fff;
}
.topbar .btn {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}
.content {
  padding: 24px;
}

@media (max-width: 767px) {
  .side {
    transform: translateX(-100%);
    transition: transform 0.2s;
  }
  .side.open {
    transform: none;
  }
  .main {
    margin-left: 0;
  }
}

.guest-nav {
  background: var(--navy);
}

/* ---------- Components ---------- */
.card {
  border: 0;
  border-radius: 12px;
  box-shadow: 0 2px 8px #0000001a;
}
.card-header {
  font-weight: 700;
  background: transparent;
}

.table {
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 12px;
  overflow: hidden;
}
.table thead th {
  font-size: 12px;
  text-transform: uppercase;
  color: #64748b;
}

/* Buttons: use Bootstrap 5 variables so hover/active/focus/disabled all follow */
.btn-primary,
.btn-success {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--green);
  --bs-btn-border-color: var(--green);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: var(--green-d);
  --bs-btn-hover-border-color: var(--green-d);
  --bs-btn-active-color: #fff;
  --bs-btn-active-bg: var(--green-d);
  --bs-btn-active-border-color: var(--green-d);
  --bs-btn-focus-shadow-rgb: 22, 163, 74;
  --bs-btn-disabled-bg: var(--green);
  --bs-btn-disabled-border-color: var(--green);
}
.btn-outline-primary {
  --bs-btn-color: var(--green);
  --bs-btn-border-color: var(--green);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: var(--green);
  --bs-btn-hover-border-color: var(--green);
  --bs-btn-active-color: #fff;
  --bs-btn-active-bg: var(--green-d);
  --bs-btn-active-border-color: var(--green-d);
  --bs-btn-focus-shadow-rgb: 22, 163, 74;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 0.2rem #16a34a33;
}

/* ---------- Inputs: text at placeholder ---------- */
.form-control,
.form-select {
  color: #0f172a;
}
.form-control::placeholder,
.form-select::placeholder,
input::placeholder,
textarea::placeholder {
  color: #64748b;
  opacity: 1;
}

/* ---------- Dark mode ---------- */
[data-bs-theme="dark"] .card {
  background: #1e293b;
  box-shadow: 0 2px 8px #0006;
}
[data-bs-theme="dark"] .table {
  --bs-table-bg: transparent;
}
[data-bs-theme="dark"] .table thead th {
  color: #94a3b8;
}
[data-bs-theme="dark"] .form-control,
[data-bs-theme="dark"] .form-select {
  color: #e2e8f0;
}
[data-bs-theme="dark"] .form-control::placeholder,
[data-bs-theme="dark"] input::placeholder,
[data-bs-theme="dark"] textarea::placeholder {
  color: #94a3b8;
}
/* ---------- Auth card inputs: siguradong visible ---------- */
body.guest input.form-control,
body.guest input,
body.guest select,
body.guest textarea {
  color: #0f172a !important;
}

body.guest input::placeholder,
body.guest textarea::placeholder,
body.guest .form-control::placeholder {
  color: #475569 !important;
  opacity: 1 !important;
}

/* Para sa select (Year) at disabled/readonly fields */
body.guest select,
body.guest select option {
  color: #0f172a !important;
}

/* Icons sa loob ng inputs */
body.guest .form-control ~ i,
body.guest .form-control ~ svg {
  color: #0f172a;
}

/* CODE (captcha) field: mas malinaw ang background at text */
body.guest input[name="captcha"],
body.guest input[name="code"],
body.guest input[placeholder="CODE"] {
  background: #ffffff !important;
  color: #0f172a !important;
  border: 1px solid #cbd5e1 !important;
}
  /* ---------- Back to landing page ---------- */
  .auth-wrap .back-home {
    position: absolute; top: 20px; left: 24px; z-index: 5;
    display: inline-flex; align-items: center; gap: 8px;
    padding: 9px 16px; border-radius: 999px;
    background: #fff; color: #1c5568; font-size: 15px; font-weight: 600; text-decoration: none;
    box-shadow: 0 2px 10px rgba(0,0,0,.2); transition: background .2s, color .2s;
  }
  .auth-wrap .back-home svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
  .auth-wrap .back-home:hover { background: #1c5568; color: #fff; }
  .auth-wrap .back-home:focus-visible { outline: 3px solid #35dcf0; outline-offset: 2px; }