/* =====================================================================
   Idhaya College Website Management Portal — shared stylesheet
   Same maroon/gold/Fraunces brand already used across the portal's
   individual pages (Student_Topper, Student_Activity_Update, Staff
   Details, the old home.php dashboard) — this file is the shell
   (topbar/sidebar/login/cards) those pages sit inside.
   ===================================================================== */

:root {
  --rp-navy-900: #4a1224;   /* kept the variable name "navy" for drop-in
                               compatibility with home.php's existing
                               tone-* classes and gradients that
                               reference it — the COLOUR is Idhaya maroon */
  --rp-navy-700: #7a1f3d;
  --rp-gold:     #dab84f;
  --rp-gold-600: #c9a227;
  --rp-ink:      #2b2320;
  --rp-muted:    #6b5f58;
  --rp-line:     #e6dccd;
  --rp-bg:       #faf6f0;
  --sidebar-w:   264px;
  --topbar-h:    64px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
html { overflow-x: hidden; }
body {
  margin: 0;
  overflow-x: hidden;
  max-width: 100vw;
  font-family: 'Source Sans 3', 'Inter', system-ui, sans-serif;
  background: var(--rp-bg);
  color: var(--rp-ink);
}
a { text-decoration: none; }
h1, h2, h3, h4, h5, h6, .rp-serif { font-family: 'Source Serif 4', 'Fraunces', serif; }

/* ---------------------------------------------------------------- */
/* Topbar                                                            */
/* ---------------------------------------------------------------- */
.rp-topbar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--topbar-h);
  display: flex; align-items: center; gap: .75rem;
  padding: 0 1.1rem;
  background: linear-gradient(120deg, var(--rp-navy-700), var(--rp-navy-900));
  box-shadow: 0 2px 14px -4px rgba(74, 18, 36, .45);
  z-index: 1040;
}
.rp-icon-btn {
  width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: 9px; border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.06);
  color: #fff;
}
.rp-icon-btn:hover { background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.32); color: #fff; }
.rp-page-meta { color: #fff; line-height: 1.2; }
.rp-page-meta small { color: var(--rp-gold); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; font-weight: 700; }
.rp-page-meta strong { font-family: 'Source Serif 4', 'Fraunces', serif; font-weight: 600; font-size: 1rem; }

.rp-user-btn {
  display: flex; align-items: center; gap: .6rem; padding: .3rem .7rem .3rem .3rem;
  border-radius: 999px; border: 1px solid rgba(255,255,255,.16); background: rgba(255,255,255,.05);
  color: #fff;
}
.rp-user-btn:hover { background: rgba(255,255,255,.12); }
.rp-avatar {
  width: 34px; height: 34px; border-radius: 50%; overflow: hidden; flex: none;
  border: 1.5px solid var(--rp-gold); display: inline-grid; place-items: center;
  background: #e6edf6; color: var(--rp-navy-900); font-weight: 700; font-size: .85rem;
}
.rp-avatar img { width: 100%; height: 100%; object-fit: cover; }
.rp-user-text { text-align: left; color: #fff; }
.rp-user-text small { color: rgba(255,255,255,.72); font-size: .72rem; }

/* ---------------------------------------------------------------- */
/* App shell / sidebar — fixed-position, not a flex item, so a       */
/* collapsed/hidden state can never pull sibling content off-screen  */
/* (the bug fixed earlier when the sidebar WAS a flex item).         */
/* ---------------------------------------------------------------- */
.rp-sidebar {
  position: fixed; top: var(--topbar-h); left: 0; bottom: 0; width: var(--sidebar-w);
  background: linear-gradient(180deg, #63182f, var(--rp-navy-900));
  color: #fff; z-index: 1030; overflow-y: auto;
  transition: transform .22s ease;
  display: flex; flex-direction: column;
}
.rp-brand { display: flex; align-items: center; gap: .6rem; padding: 1.1rem 1rem; border-bottom: 1px solid rgba(255,255,255,.12); color: #fff; }
.rp-brand img { width: 38px; height: 38px; border-radius: 50%; background: #fff; padding: 2px; border: 1.5px solid var(--rp-gold); object-fit: contain; }
.rp-brand-name { font-family: 'Source Serif 4', 'Fraunces', serif; font-weight: 600; font-size: .92rem; line-height: 1.2; }
.rp-brand-sub { font-size: .72rem; color: var(--rp-gold); text-transform: uppercase; letter-spacing: .1em; }

.rp-nav { padding: .75rem .65rem 1.5rem; flex: 1; }
.rp-nav-section {
  font-size: .66rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 700;
  color: var(--rp-gold); margin: 1rem .6rem .4rem;
}
.rp-nav-link {
  display: flex; align-items: center; gap: .65rem; width: 100%; text-align: left;
  color: rgba(255,255,255,.88); font-size: .87rem; font-weight: 600;
  padding: .6rem .7rem; border-radius: 9px; margin-bottom: .12rem;
  border: 0; border-left: 3px solid transparent; background: transparent;
}
.rp-nav-link .bi:first-child { font-size: 1rem; width: 20px; text-align: center; color: var(--rp-gold); }
.rp-nav-link:hover { background: rgba(255,255,255,.08); color: #fff; }
.rp-nav-link.active { background: rgba(255,255,255,.1); border-left-color: var(--rp-gold); color: #fff; }
.rp-caret { margin-left: auto; font-size: .68rem; transition: transform .2s ease; color: rgba(255,255,255,.55); }
.rp-nav-link[aria-expanded="true"] .rp-caret { transform: rotate(90deg); }
.rp-subnav { list-style: none; margin: 0 0 .3rem; padding-left: .4rem; }
.rp-subnav a {
  display: block; padding: .5rem .7rem .5rem 2.3rem; font-size: .82rem; font-weight: 500;
  color: rgba(255,255,255,.72); border-left: 3px solid transparent; border-radius: 9px;
}
.rp-subnav a:hover, .rp-subnav a.active { color: #fff; background: rgba(255,255,255,.06); border-left-color: var(--rp-gold); }
.rp-sidebar-foot { padding: .9rem 1rem; font-size: .72rem; color: rgba(255,255,255,.55); border-top: 1px solid rgba(255,255,255,.1); }

.rp-backdrop {
  position: fixed; inset: 0; background: rgba(10,10,10,.45); z-index: 1025;
  opacity: 0; visibility: hidden; transition: opacity .2s ease;
}

/* ---------------------------------------------------------------- */
/* Main content area                                                 */
/* ---------------------------------------------------------------- */
.rp-main, .content-wrapper {
  margin-left: var(--sidebar-w);
  padding-top: calc(var(--topbar-h) + 1.5rem);
  padding-left: 1.75rem; padding-right: 1.75rem; padding-bottom: 2rem;
  min-height: 100vh;
}
.rp-footer, .site-footer {
  margin-left: var(--sidebar-w);
  background: linear-gradient(120deg, #63182f, var(--rp-navy-900));
  color: rgba(255,255,255,.85);
  padding: .9rem 1.75rem; font-size: .82rem;
}
.rp-footer a, .footer-link { color: var(--rp-gold); font-weight: 600; }
.rp-footer a:hover, .footer-link:hover { color: #fff; }
.footer-text { color: rgba(255,255,255,.85); }
.footer-muted { color: rgba(255,255,255,.6); }
.rp-danger-icon { font-size: 2.2rem; color: #b3261e; }
.rp-flash { margin: 0 0 1.25rem; }

@media (max-width: 991.98px) {
  .rp-sidebar { transform: translateX(-100%); }
  body.rp-sidebar-open .rp-sidebar { transform: translateX(0); }
  body.rp-sidebar-open .rp-backdrop { opacity: 1; visibility: visible; }
  .rp-main, .content-wrapper, .rp-footer, .site-footer { margin-left: 0; padding-left: 1.1rem; padding-right: 1.1rem; }
  .rp-page-meta strong { display: none; }
}

/* ---------------------------------------------------------------- */
/* Sign-in page                                                       */
/* ---------------------------------------------------------------- */
.rp-login { display: grid; grid-template-columns: 1.1fr 1fr; min-height: 100vh; }
.rp-login-aside {
  background: radial-gradient(800px 320px at 100% 0%, rgba(218,184,79,.28), transparent 60%),
              linear-gradient(135deg, var(--rp-navy-700), var(--rp-navy-900));
  color: #fff; padding: 3rem; display: flex; flex-direction: column; justify-content: space-between;
}
.rp-crest { width: 76px; height: 76px; border-radius: 50%; background: #fff; padding: 6px; margin-bottom: 1.25rem; }
.rp-login-aside h1 { font-size: 1.7rem; margin: 0 0 .5rem; color: #fff; }
.rp-rule { width: 56px; height: 3px; background: var(--rp-gold); margin: 1rem 0; border-radius: 2px; }
.rp-login-aside ul { list-style: none; padding: 0; margin: 1.5rem 0 0; }
.rp-login-aside li { display: flex; align-items: center; gap: .6rem; padding: .4rem 0; color: #e9d9c9; font-size: .92rem; }
.rp-login-aside .bi { color: var(--rp-gold); }
.rp-login-main { display: flex; align-items: center; justify-content: center; padding: 2rem; background: #fff; }
.rp-login-card { width: 100%; max-width: 380px; }
@media (max-width: 767.98px) {
  .rp-login { grid-template-columns: 1fr; }
  .rp-hide-sm { display: none; }
  .rp-login-aside { padding: 2rem; text-align: center; align-items: center; }
}