/* ═══════════════════════════════════════════════════════════════
   Smart Tuition – Shared Stylesheet
   ═══════════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue-light: #add8e6;
  --blue-mid:   #77a1af;
  --blue-dark:  #5b8fa0;
  --blue-bg:    #d6eef5;
  --text-dark:  #434343;
  --text-black: #000;
  --bg-page:    #f7f7f8;
}

body {
  font-family: 'Assistant', sans-serif;
  background: var(--bg-page);
  color: var(--text-black);
}

/* ─── UTILITY ─────────────────────────────────────────────────────────────── */
.container { max-width: 1440px; margin: 0 auto; padding: 0 48px; }

/* ─── NAVBAR ──────────────────────────────────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 100;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.1);
}
.nav-inner {
  max-width: 1440px; margin: 0 auto; padding: 0 40px;
  height: 86px; display: flex; align-items: center; gap: 48px;
}
.nav-logo {
  font-family: 'Assistant', sans-serif; font-weight: 700;
  font-size: 28px; letter-spacing: -.5px;
  color: var(--blue-dark); text-decoration: none; flex-shrink: 0;
  display: flex; flex-direction: row; align-items: center; gap: 10px;
}
.nav-logo-icon { width: 36px; height: 36px; border-radius: 6px; flex-shrink: 0; }
.nav-logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.nav-logo-sub {
  display: block;
  font-size: 9px; font-weight: 600; letter-spacing: .09em;
  text-transform: uppercase; opacity: .7; margin-top: 3px;
}
.nav-links {
  display: flex; align-items: center; gap: 40px;
  margin-left: auto; list-style: none;
}
.nav-links a {
  font-family: 'Assistant', sans-serif; font-weight: 700;
  font-size: 18px; color: var(--text-black);
  text-decoration: none; transition: color .2s;
}
.nav-links a:hover { color: var(--blue-dark); }
.nav-apply {
  background: var(--blue-dark); color: #fff !important;
  padding: 8px 24px; border-radius: 6px; transition: background .2s !important;
}
.nav-apply:hover { background: var(--blue-mid) !important; }
.nav-links a.active { color: var(--blue-dark); border-bottom: 2px solid var(--blue-dark); padding-bottom: 2px; }

/* ─── PAGE HEADER BANNER ─────────────────────────────────────────────────── */
.page-header {
  position: relative; overflow: hidden;
  background: var(--blue-mid); min-height: 317px;
  display: flex; align-items: center;
}
.page-header-img {
  position: absolute; right: 0; top: 0;
  width: 60%; height: 100%; object-fit: cover;
  border-radius: 0 0 0 40px;
}
.page-header-content {
  position: relative; z-index: 2;
  padding: 48px 56px; max-width: 700px;
}
.page-header-content h1 {
  font-family: 'Quicksand', sans-serif; font-weight: 700;
  font-size: 52px; color: #fff; line-height: 1.1;
  margin-bottom: 16px; letter-spacing: -.5px;
}
.page-header-content .breadcrumb {
  font-family: 'Assistant', sans-serif; font-size: 18px;
  color: rgba(255,255,255,.85);
}
.page-header-content .breadcrumb a {
  color: rgba(255,255,255,.85); text-decoration: none;
}
.page-header-content .breadcrumb a:hover { color: #fff; }
.page-header-content .sub-text {
  font-family: 'Assistant', sans-serif; font-size: 20px;
  color: rgba(255,255,255,.9); margin-top: 12px; line-height: 1.5;
}

/* ─── SECTION DIVIDER ─────────────────────────────────────────────────────── */
.section-divider {
  border: none; border-top: 2px solid rgba(91,143,160,.25);
  margin: 0 48px;
}

/* ─── CARDS ──────────────────────────────────────────────────────────────── */
.card {
  background: var(--blue-mid); border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,.15);
  overflow: hidden;
}
.card-light {
  background: var(--blue-light); border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,.12); overflow: hidden;
}
.card-white {
  background: #fff; border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,.08); overflow: hidden;
}

/* ─── BUTTONS ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-block; font-family: 'Assistant', sans-serif;
  font-weight: 700; font-size: 16px;
  padding: 12px 28px; border-radius: 8px;
  cursor: pointer; text-decoration: none; border: none;
  transition: transform .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,.2); }
.btn-primary {
  background: var(--blue-dark); color: #fff;
}
.btn-primary:hover { background: var(--blue-mid); }
.btn-outline {
  background: transparent; color: var(--blue-dark);
  border: 2px solid var(--blue-dark);
}
.btn-outline:hover { background: var(--blue-dark); color: #fff; }
.btn-white {
  background: #fff; color: var(--blue-dark);
  border: 2px solid #fff;
}
.btn-white:hover { background: var(--blue-light); }
.btn-small { padding: 8px 20px; font-size: 14px; border-radius: 6px; }

/* ─── KEEN TO FIND OUT MORE SECTION ─────────────────────────────────────── */
.keen-section {
  background: var(--blue-mid); padding: 0 0 48px;
}
.keen-header {
  background: var(--blue-dark); padding: 20px 48px; text-align: center;
  margin-bottom: 40px;
}
.keen-header h2 {
  font-family: 'Quicksand', sans-serif; font-weight: 700;
  font-size: 32px; color: #fff;
}
.keen-grid {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 24px; padding: 0 48px;
}
.keen-card {
  background: rgba(255,255,255,.15); border-radius: 12px;
  padding: 32px 24px 24px;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.keen-icon {
  font-size: 48px; color: #fff;
}
.keen-card h3 {
  font-family: 'Quicksand', sans-serif; font-weight: 700;
  font-size: 20px; color: #fff; text-align: center;
}

/* ─── ENQUIRE FORM SECTION ───────────────────────────────────────────────── */
.enquire-section {
  background: var(--blue-bg); padding: 60px 0;
}
.enquire-section h2 {
  font-family: 'Quicksand', sans-serif; font-weight: 700;
  font-size: 28px; color: var(--text-black);
  text-align: center; margin-bottom: 36px; letter-spacing: -.3px;
}
.enquire-form {
  max-width: 560px; margin: 0 auto; padding: 0 24px;
  display: flex; flex-direction: column; gap: 20px;
}
.form-group {
  display: flex; flex-direction: column; gap: 6px;
}
.form-group label {
  font-family: 'Assistant', sans-serif; font-weight: 700;
  font-size: 13px; letter-spacing: .08em;
  color: var(--text-dark); text-transform: uppercase;
}
.form-group input,
.form-group select {
  width: 100%; padding: 14px 16px;
  border: 1.5px solid rgba(91,143,160,.35); border-radius: 6px;
  background: #fff; font-family: 'Assistant', sans-serif;
  font-size: 15px; color: var(--text-black);
  appearance: none; outline: none;
  transition: border-color .2s;
}
.form-group input:focus,
.form-group select:focus { border-color: var(--blue-dark); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.enquire-form .btn-primary {
  align-self: center; min-width: 160px; font-size: 17px; padding: 14px 40px;
}

/* ─── FOOTER ─────────────────────────────────────────────────────────────── */
footer { background: var(--blue-mid); }
.footer-inner {
  max-width: 1440px; margin: 0 auto; padding: 0 40px;
  height: 102px; display: flex; align-items: center; gap: 24px;
}
.footer-icons { display: flex; gap: 16px; align-items: center; flex-shrink: 0; }
.footer-icon {
  width: 40px; height: 40px; background: #fff;
  border-radius: 8px; display: flex; align-items: center;
  justify-content: center; color: var(--blue-dark);
  font-size: 18px; text-decoration: none; transition: background .2s;
}
.footer-icon:hover { background: var(--blue-light); }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.footer-links a {
  font-family: 'Assistant', sans-serif; font-size: 14px;
  font-weight: 600; color: #fff; text-decoration: none;
}
.footer-links a:hover { text-decoration: underline; }
.footer-links span { color: rgba(255,255,255,.4); }
.footer-copy {
  margin-left: auto; font-family: 'Assistant', sans-serif;
  font-size: 14px; color: rgba(255,255,255,.8); flex-shrink: 0;
}

/* ─── PROGRAM OUTLINE ────────────────────────────────────────────────────── */
.program-outline-header {
  background: var(--blue-mid); padding: 16px 32px; border-radius: 8px;
  margin-bottom: 24px;
}
.program-outline-header h2 {
  font-family: 'Quicksand', sans-serif; font-weight: 700;
  font-size: 28px; color: #fff; text-align: center;
}
.program-subject-card {
  display: grid; grid-template-columns: 1fr 1fr;
  border-radius: 10px; overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,.1); margin-bottom: 24px;
}
.program-subject-info {
  background: var(--blue-light); padding: 36px 40px;
  display: flex; flex-direction: column; justify-content: center; gap: 12px;
}
.program-subject-info h3 {
  font-family: 'Quicksand', sans-serif; font-weight: 700; font-size: 24px;
}
.program-subject-info .detail {
  font-family: 'Assistant', sans-serif; font-size: 16px; color: var(--text-dark);
}
.program-subject-info .subject-img {
  width: 120px; height: 120px; object-fit: cover;
  border-radius: 8px; margin-bottom: 8px;
}
.program-subject-desc {
  background: var(--blue-mid); padding: 36px 40px;
  display: flex; align-items: center;
}
.program-subject-desc p {
  font-family: 'Assistant', sans-serif; font-size: 17px;
  color: #fff; line-height: 1.7;
}

/* ─── HAMBURGER NAV (for pages using shared.css) ─────────────────────────── */
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  margin-left: auto;
  padding: 6px;
  background: none;
  border: none;
  flex-shrink: 0;
}
.nav-burger span {
  display: block; width: 24px; height: 2px;
  background: var(--text-black); border-radius: 2px;
  transition: all .3s ease;
}
.nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: none;
  flex-direction: column;
  background: #fff;
  padding: 12px 20px 16px;
  border-top: 1px solid rgba(91,143,160,.15);
  gap: 2px;
  box-shadow: 0 4px 8px rgba(0,0,0,.08);
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  font-family: 'Assistant', sans-serif; font-weight: 700;
  font-size: 16px; color: var(--text-black);
  text-decoration: none; padding: 10px 0;
  border-bottom: 1px solid rgba(91,143,160,.1);
  transition: color .2s;
}
.nav-mobile a:hover { color: var(--blue-dark); }
.nav-mobile .nav-apply {
  margin-top: 8px; text-align: center;
  border-radius: 6px; border-bottom: none;
  padding: 10px 16px;
}

/* ─── RESPONSIVE ─────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .keen-grid { grid-template-columns: 1fr 1fr; }
  .program-subject-card { grid-template-columns: 1fr; }
  .page-header-img { display: none; }
  .page-header-content { max-width: 100%; }
}
@media (max-width: 768px) {
  .nav-inner { padding: 0 20px; gap: 16px; }
  .nav-logo  { font-size: 22px; }
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .container { padding: 0 20px; }
  .section-divider { margin: 0 20px; }
  .keen-grid { grid-template-columns: 1fr; }
  .form-row  { grid-template-columns: 1fr; }
  .footer-inner { flex-wrap: wrap; height: auto; padding: 16px 20px; gap: 12px; }
  .footer-copy  { margin-left: 0; width: 100%; text-align: center; }
  .page-header-content h1 { font-size: 34px; }
  .page-header-content { padding: 36px 28px; }
  .program-subject-info,
  .program-subject-desc { padding: 24px 24px; }
  .keen-header { padding: 16px 24px; }
  .keen-grid  { padding: 0 24px; }
}
@media (max-width: 480px) {
  .nav-inner { height: 70px; }
  .page-header-content { padding: 28px 16px; }
  .page-header-content h1 { font-size: 26px; }
  .page-header-content .sub-text { font-size: 15px; }
  .program-subject-info,
  .program-subject-desc { padding: 20px 16px; }
  .keen-header { padding: 14px 16px; }
  .keen-grid  { padding: 0 16px; }
}

/* ─── RESEARCH PLATFORM SIDEBAR COLLAPSE ────────────────────────────────── */
.rp-sidebar { transition: width .25s ease; }
.rp-main    { transition: margin-left .25s ease; }

/* Collapse toggle button */
.rp-collapse-btn {
  width: 100%; background: transparent; border: none; cursor: pointer;
  color: rgba(255,255,255,.4); padding: 8px 20px 14px;
  display: flex; align-items: center; justify-content: flex-end;
  transition: color .15s;
}
.rp-collapse-btn:hover { color: rgba(255,255,255,.85); }
.rp-collapse-btn svg   { transition: transform .25s ease; flex-shrink: 0; }

/* Collapsed state — desktop only */
@media (min-width: 769px) {
  .rp-sidebar.collapsed { width: 64px; }
  .rp-sidebar.collapsed ~ .rp-main { margin-left: 64px; }

  .rp-sidebar.collapsed .rp-sidebar-logo {
    justify-content: center; padding-left: 0; padding-right: 0;
  }
  .rp-sidebar.collapsed .rp-sidebar-logo-text,
  .rp-sidebar.collapsed .rp-sidebar-logo-sub { display: none; }
  .rp-sidebar.collapsed .rp-sidebar-divider  { margin-left: 8px; margin-right: 8px; }

  .rp-sidebar.collapsed .rp-sidebar-nav { padding: 4px 6px; }
  .rp-sidebar.collapsed .rp-nav-item    { justify-content: center; padding: 10px 0; }
  .rp-sidebar.collapsed .rp-nav-item span { display: none; }

  .rp-sidebar.collapsed .rp-sidebar-footer { padding: 10px 6px 6px; }
  .rp-sidebar.collapsed .rp-user-row { justify-content: center; }
  .rp-sidebar.collapsed .rp-user-text { display: none; }
  .rp-sidebar.collapsed .rp-btn-logout { padding: 7px 0; justify-content: center; }
  .rp-sidebar.collapsed .rp-btn-logout span { display: none; }

  .rp-sidebar.collapsed .rp-collapse-btn { justify-content: center; padding-right: 0; }
  .rp-sidebar.collapsed .rp-collapse-btn svg { transform: rotate(180deg); }
}