/* ═══════════════════════════════════════════════════════
   Prof. Aradhana Pawar — Professional Faculty Portfolio
   style.css  |  University-Grade Design
   ═══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,700;1,400;1,500&family=Lato:wght@300;400;700&family=Source+Code+Pro:wght@400;500&display=swap');

/* ─────────────────────────────
   ROOT VARIABLES
───────────────────────────── */
:root {
  /* Primary palette — Deep Navy + Gold */
  --navy:        #0D1B2A;
  --navy-mid:    #162236;
  --navy-light:  #1E3250;
  --gold:        #C9973C;
  --gold-light:  #E8B85A;
  --gold-pale:   #F8EDD8;

  /* Neutrals */
  --white:       #FFFFFF;
  --cream:       #FAF8F4;
  --gray-50:     #F5F4F0;
  --gray-100:    #ECEAE4;
  --gray-200:    #D5D2C8;
  --gray-400:    #9C9A93;
  --gray-600:    #6B6962;
  --gray-800:    #3A3832;
  --gray-900:    #1C1B18;

  /* Accent colours */
  --teal:        #1B6B6B;
  --teal-light:  #E6F4F4;
  --rust:        #8B3A2A;
  --rust-light:  #FBEAE6;

  /* Typography */
  --font-serif:  'Playfair Display', 'Georgia', serif;
  --font-sans:   'Lato', 'Helvetica Neue', sans-serif;
  --font-mono:   'Source Code Pro', 'Courier New', monospace;

  /* Layout */
  --sidebar-w:   260px;
  --content-ml:  260px;
  --section-pad: 5.5rem 0;
  --container-w: 1080px;

  /* Radii */
  --r-sm:  4px;
  --r-md:  8px;
  --r-lg:  14px;
  --r-xl:  22px;

  /* Shadows */
  --sh-sm:  0 1px 6px rgba(0,0,0,0.07);
  --sh-md:  0 4px 24px rgba(0,0,0,0.09);
  --sh-lg:  0 16px 48px rgba(0,0,0,0.13);
  --sh-xl:  0 28px 80px rgba(0,0,0,0.16);

  --ease:  cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─────────────────────────────
   RESET
───────────────────────────── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--white);
  color: var(--gray-900);
  line-height: 1.7;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

/* ─────────────────────────────
   PAGE LOADER
───────────────────────────── */
.page-loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--navy);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.5s var(--ease), visibility 0.5s;
}
.page-loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-inner { text-align: center; }
.loader-logo {
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 4px;
  margin-bottom: 24px;
  animation: pulseLogo 1.2s ease-in-out infinite;
}
@keyframes pulseLogo {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(0.96); }
}
.loader-bar {
  width: 180px; height: 2px;
  background: rgba(255,255,255,0.15);
  border-radius: 2px;
  overflow: hidden;
  margin: 0 auto;
}
.loader-fill {
  height: 100%;
  background: var(--gold);
  border-radius: 2px;
  animation: loadFill 1.6s ease-in-out forwards;
}
@keyframes loadFill { from { width: 0; } to { width: 100%; } }

/* ─────────────────────────────
   SIDEBAR
───────────────────────────── */
.sidebar {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--navy);
  display: flex;
  flex-direction: column;
  z-index: 500;
  border-right: 1px solid rgba(255,255,255,0.06);
}
.sidebar-top {
  padding: 2.5rem 1.8rem 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sb-avatar {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif);
  font-size: 20px; font-weight: 700;
  color: var(--navy);
  margin-bottom: 14px;
  box-shadow: 0 0 0 4px rgba(201,151,60,0.18);
}
.sb-name {
  font-family: var(--font-serif);
  font-size: 16px; font-weight: 500;
  color: var(--white);
  margin-bottom: 3px;
}
.sb-role {
  font-size: 11px;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 400;
}
.sb-nav {
  flex: 1;
  padding: 1.5rem 0;
  overflow-y: auto;
}
.sb-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 1.8rem;
  font-size: 13.5px;
  font-weight: 400;
  color: rgba(255,255,255,0.55);
  transition: all 0.25s var(--ease);
  position: relative;
}
.sb-link::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--gold);
  border-radius: 0 2px 2px 0;
  transition: height 0.25s var(--ease);
}
.sb-link:hover,
.sb-link.active {
  color: var(--white);
  background: rgba(255,255,255,0.05);
}
.sb-link.active::before,
.sb-link:hover::before { height: 70%; }
.sb-link.active { color: var(--gold-light); }
.sb-icon {
  font-size: 14px;
  width: 18px;
  text-align: center;
  opacity: 0.7;
}
.Sushil:hover{
  color: #C0392B;
}
.sb-footer {
  padding: 1.2rem 1.8rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 11px;
  color: rgba(255,255,255,0.25);
}

/* ─────────────────────────────
   TOPBAR (mobile)
───────────────────────────── */
.topbar {
  display: none;
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 600;
  background: var(--navy);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.2rem;
  height: 58px;
}
.topbar-brand {
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--white);
  font-weight: 500;
}
.topbar-contact {
  font-size: 12px;
  padding: 6px 14px;
  border: 1px solid var(--gold);
  border-radius: var(--r-md);
  color: var(--gold);
  transition: all 0.25s;
}
.topbar-contact:hover { background: var(--gold); color: var(--navy); }
.menu-btn {
  display: flex; flex-direction: column; gap: 5px;
  background: none; border: none; padding: 6px;
}
.menu-btn span {
  display: block; width: 22px; height: 2px;
  background: var(--white); border-radius: 2px;
  transition: var(--ease) 0.25s;
}
.menu-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn.open span:nth-child(2) { opacity: 0; }
.menu-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile overlay + drawer */
.mobile-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.55); z-index: 700;
}
.mobile-overlay.show { display: block; }
.mobile-drawer {
  position: fixed; top: 0; left: -100%;
  width: 280px; height: 100%;
  background: var(--navy); z-index: 800;
  padding: 1.5rem;
  transition: left 0.35s var(--ease);
  overflow-y: auto;
}
.mobile-drawer.open { left: 0; }
.drawer-head {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 2rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.drawer-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-size: 16px; font-weight: 700;
  color: var(--navy); flex-shrink: 0;
}
.drawer-name { font-size: 14px; color: var(--white); font-weight: 500; }
.drawer-role { font-size: 11px; color: var(--gold); }
.drawer-close {
  margin-left: auto; background: none; border: none;
  color: rgba(255,255,255,0.5); font-size: 18px;
}
.drawer-nav { display: flex; flex-direction: column; gap: 2px; }
.drawer-nav a {
  font-size: 15px; color: rgba(255,255,255,0.65);
  padding: 10px 12px; border-radius: var(--r-md);
  transition: all 0.2s;
}
.drawer-nav a:hover { background: rgba(255,255,255,0.07); color: var(--white); }

/* ─────────────────────────────
   MAIN CONTENT
───────────────────────────── */
.main-content {
  margin-left: var(--content-ml);
}

/* ─────────────────────────────
   SECTION COMMONS
───────────────────────────── */
.section { padding: var(--section-pad); }
.section-dark  { background: var(--navy); color: var(--white); }
.section-cream { background: var(--cream); }
.section-contact { background: var(--navy-mid); color: var(--white); }

.section-container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 2.5rem;
}

.sec-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
  display: block;
}
.sec-label.light { color: var(--gold-light); }

.sec-title {
  font-family: var(--font-serif);
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--gray-900);
  margin-bottom: 3rem;
}
.sec-title.light { color: var(--white); }
.sec-title em { font-style: italic; color: var(--gold); }

/* ─────────────────────────────
   REVEAL ANIMATION
───────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ─────────────────────────────
   HERO
───────────────────────────── */
.hero {
  min-height: 100vh;
  background: var(--navy);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(201,151,60,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,151,60,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-accent-line {
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: linear-gradient(to bottom, transparent, var(--gold), transparent);
}
.hero-wrap {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  align-items: center;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 6rem 2.5rem 4rem;
  position: relative; z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(201,151,60,0.12);
  border: 1px solid rgba(201,151,60,0.3);
  border-radius: 30px;
  padding: 6px 14px;
  font-size: 12px;
  color: var(--gold-light);
  margin-bottom: 22px;
  letter-spacing: 0.3px;
}
.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--gold);
  flex-shrink: 0;
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink {
  0%,100% { opacity: 1; } 50% { opacity: 0.3; }
}
.hero-title {
  margin-bottom: 18px;
}
.ht-prefix {
  display: block;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 300;
  color: rgba(255,255,255,0.5);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.ht-name {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 700;
  line-height: 1.0;
  color: var(--white);
}
.ht-name em { font-style: italic; color: var(--gold); }
.hero-designation {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 14px;
  font-weight: 300;
  letter-spacing: 0.5px;
}
.hero-bio {
  font-size: 14px;
  color: rgba(255,255,255,0.45);
  margin-bottom: 30px;
  line-height: 1.8;
  font-weight: 300;
}
.hero-cta {
  display: flex; flex-wrap: wrap; gap: 12px;
  margin-bottom: 40px;
}
.cta-primary {
  display: inline-block;
  padding: 13px 30px;
  background: var(--gold);
  color: var(--navy);
  border-radius: var(--r-md);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.3px;
  transition: all 0.3s var(--ease);
  box-shadow: 0 6px 20px rgba(201,151,60,0.35);
}
.cta-primary:hover {
  background: var(--gold-light);
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(201,151,60,0.45);
}
.cta-ghost {
  display: inline-block;
  padding: 12px 24px;
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.8);
  border-radius: var(--r-md);
  font-size: 14px;
  font-weight: 400;
  transition: all 0.3s var(--ease);
}
.cta-ghost:hover {
  border-color: var(--gold);
  color: var(--gold-light);
  transform: translateY(-2px);
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.hs-item { text-align: center; padding: 0 24px; }
.hs-item:first-child { padding-left: 0; }
.hs-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 4px;
}
.hs-lbl {
  font-size: 11px;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 1px;
  line-height: 1.4;
}
.hs-sep {
  width: 1px; height: 40px;
  background: rgba(255,255,255,0.1);
  flex-shrink: 0;
}

/* Profile frame */
.hero-right { display: flex; align-items: center; justify-content: center; }
.hero-profile-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}
.hero-profile-img {
  width: 100%;
  max-width: 520px;
  aspect-ratio: 1/1;
  object-fit: cover;
  border-radius: 50%;
  border: 6px solid #ffffff20;
  padding: 10px;
  background: #0f172a;
  box-sizing: border-box;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}
.profile-frame {
  width: 260px; height: 260px;
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.pf-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(201,151,60,0.25);
}
.pf-ring-1 { inset: 0; animation: rotateSlow 20s linear infinite; }
.pf-ring-2 { inset: 14px; border-color: rgba(201,151,60,0.15); animation: rotateSlow 30s linear infinite reverse; }
.pf-ring-3 { inset: 28px; border-color: rgba(201,151,60,0.08); }
@keyframes rotateSlow { to { transform: rotate(360deg); } }
.pf-card {
  margin-top: 2rem;
  position: relative; z-index: 1;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(201,151,60,0.3);
  border-radius: var(--r-xl);
  padding: 28px 24px;
  text-align: center;
  backdrop-filter: blur(8px);
  width: 200px;
}
.pf-monogram {
  font-family: var(--font-serif);
  font-size: 42px;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 8px;
}
.pf-name { font-size: 13px; color: var(--white); font-weight: 500; margin-bottom: 3px; }
.pf-dept { font-size: 11px; color: rgba(255,255,255,0.4); margin-bottom: 12px; }
.pf-tags {
  display: flex; justify-content: center; gap: 6px; margin-bottom: 12px;
}
.pf-tags span {
  font-size: 10px; padding: 3px 8px;
  background: rgba(201,151,60,0.15);
  border: 1px solid rgba(201,151,60,0.3);
  border-radius: 20px;
  color: var(--gold-light);
}
.pf-college { font-size: 10px; color: rgba(255,255,255,0.3); }

.hero-scroll-hint {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  z-index: 1;
}
.scroll-arrow {
  display: block;
  width: 1.5px; height: 40px;
  background: linear-gradient(to bottom, rgba(201,151,60,0.8), transparent);
  animation: scrollFade 1.8s ease-in-out infinite;
}
@keyframes scrollFade {
  0% { opacity: 1; transform: scaleY(1); }
  100% { opacity: 0; transform: scaleY(0.3) translateY(10px); }
}
.scroll-label { font-size: 10px; color: rgba(255,255,255,0.25); letter-spacing: 2px; text-transform: uppercase; }

/* ─────────────────────────────
   ABOUT
───────────────────────────── */
.about-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 5rem;
  align-items: start;
}
.about-divider {
  width: 60px; height: 3px;
  background: linear-gradient(to right, var(--gold), transparent);
  margin-bottom: 2rem;
  border-radius: 2px;
}
.about-para {
  font-size: 16px;
  color: var(--gray-600);
  line-height: 1.85;
  margin-bottom: 1.4rem;
}
.about-quote {
  margin-top: 2.5rem;
  padding: 1.8rem 2rem;
  border-left: 3px solid var(--gold);
  background: var(--gold-pale);
  border-radius: 0 var(--r-md) var(--r-md) 0;
}
.quote-mark {
  font-family: var(--font-serif);
  font-size: 56px;
  line-height: 0.8;
  color: var(--gold);
  margin-bottom: 8px;
  font-weight: 700;
}
.quote-text { font-family: var(--font-serif); font-size: 17px; font-style: italic; color: var(--gray-800); line-height: 1.7; }

/* Profile table */
.profile-table {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--sh-sm);
  margin-bottom: 1.5rem;
}
.pt-header {
  background: var(--navy);
  padding: 14px 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold-light);
}
.profile-table table { width: 100%; border-collapse: collapse; }
.profile-table tr { border-bottom: 1px solid var(--gray-100); }
.profile-table tr:last-child { border-bottom: none; }
.pt-key {
  padding: 11px 20px;
  font-size: 12px;
  font-weight: 700;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  width: 130px;
  background: var(--gray-50);
  vertical-align: top;
}
@media (max-width: 480px) {
  .pt-key { width: 100px; padding: 11px 12px; font-size: 11px; }
  .pt-val { padding: 11px 12px; font-size: 12px; }
}

.pt-val {
  padding: 11px 20px;
  font-size: 13.5px;
  color: var(--gray-900);
}
.email-val { color: var(--teal); font-weight: 700; }

.expertise-tags { }
.et-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--gray-400); margin-bottom: 12px; }
.et-wrap { display: flex; flex-wrap: wrap; gap: 8px; }
.et-tag {
  font-size: 12px;
  padding: 5px 14px;
  border-radius: 20px;
  border: 1px solid var(--gray-200);
  color: var(--gray-600);
  background: var(--white);
  transition: all 0.22s;
}
.et-tag.primary {
  background: var(--gold-pale);
  border-color: var(--gold);
  color: var(--gray-800);
  font-weight: 700;
}
.et-tag:hover {
  border-color: var(--gold);
  background: var(--gold-pale);
  color: var(--gray-900);
}

/* ─────────────────────────────
   EDUCATION / TIMELINE
───────────────────────────── */
.timeline { margin-bottom: 4rem; }
.tl-item { display: flex; gap: 2rem; margin-bottom: 3rem; }
.tl-marker { display: flex; flex-direction: column; align-items: center; flex-shrink: 0; padding-top: 4px; }
.tl-dot {
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 3px solid var(--gold);
  background: var(--navy);
  flex-shrink: 0;
  box-shadow: 0 0 0 4px rgba(201,151,60,0.15);
}
.tl-line { flex: 1; width: 1px; background: rgba(201,151,60,0.2); margin-top: 8px; }
.tl-degree {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}
.tl-field { font-size: 15px; color: var(--gold-light); margin-bottom: 10px; font-weight: 300; }
.tl-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.tl-badge {
  font-size: 10px;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(201,151,60,0.15);
  border: 1px solid rgba(201,151,60,0.3);
  color: var(--gold-light);
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.tl-sep { color: rgba(255,255,255,0.2); }
.tl-meta > span:last-child { font-size: 13px; color: rgba(255,255,255,0.5); }
.tl-desc { font-size: 14px; color: rgba(255,255,255,0.5); line-height: 1.75; margin-bottom: 14px; }
.tl-skills { display: flex; flex-wrap: wrap; gap: 8px; }
.tl-skills span {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: var(--r-sm);
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.6);
  font-family: var(--font-mono);
}

/* Affiliations */
.affil-row { padding-top: 3rem; border-top: 1px solid rgba(255,255,255,0.08); }
.affil-label { font-size: 11px; text-transform: uppercase; letter-spacing: 2px; color: rgba(255,255,255,0.35); margin-bottom: 1.5rem; }
.affil-items { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.affil-card {
  flex: 1; min-width: 160px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(201,151,60,0.2);
  border-radius: var(--r-lg);
  padding: 24px 20px;
  text-align: center;
  transition: background 0.25s;
}
.affil-card:hover { background: rgba(201,151,60,0.06); }
.affil-icon {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--navy);
  font-family: var(--font-serif);
  font-size: 20px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 12px;
}
.affil-name { font-size: 16px; font-weight: 700; color: var(--white); margin-bottom: 4px; }
.affil-sub { font-size: 12px; color: rgba(255,255,255,0.4); line-height: 1.5; }

/* ─────────────────────────────
   TEACHING PHILOSOPHY
───────────────────────────── */
.teaching-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.teach-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  padding: 28px 24px;
  position: relative;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s;
  overflow: hidden;
}
.teach-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.teach-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--sh-lg);
  border-color: var(--gray-200);
}
.teach-card:hover::before { transform: scaleX(1); }
.tc-num {
  position: absolute; top: 18px; right: 20px;
  font-family: var(--font-serif);
  font-size: 44px; font-weight: 700;
  color: var(--gray-100); line-height: 1;
  user-select: none;
}
.tc-icon {
  width: 48px; height: 48px;
  color: var(--gold);
  margin-bottom: 18px;
}
.tc-icon svg { width: 100%; height: 100%; }
.teach-card h3 {
  font-family: var(--font-serif);
  font-size: 19px; font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 10px;
}
.teach-card p { font-size: 14px; color: var(--gray-600); line-height: 1.75; }

/* Method bar */
.method-bar {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  padding: 28px;
}
.mb-label {
  font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 2px;
  color: var(--gray-400); margin-bottom: 20px;
}
.mb-items { display: flex; flex-direction: column; gap: 12px; }
.mb-item { display: flex; align-items: center; gap: 16px; }
.mb-block {
  height: 34px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  border-radius: var(--r-sm);
  min-width: 40px;
  display: flex; align-items: center;
  padding: 0 12px;
  font-size: 12px; font-weight: 700;
  color: var(--navy);
  white-space: nowrap;
  transition: width 1.5s var(--ease);
}
.mb-item > span {
  font-size: 13px;
  color: var(--gray-600);
  white-space: nowrap;
}

/* ─────────────────────────────
   SUBJECTS / COURSES
───────────────────────────── */
.course-block {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-xl);
  overflow: hidden;
  margin-bottom: 2.5rem;
  box-shadow: var(--sh-sm);
  transition: box-shadow 0.3s;
}
.course-block:hover { box-shadow: var(--sh-md); }
.cb-header {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 28px 32px 24px;
  border-bottom: 1px solid var(--gray-100);
}
.cb-code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray-400);
  padding: 4px 10px;
  background: var(--gray-50);
  border-radius: var(--r-sm);
  border: 1px solid var(--gray-200);
  white-space: nowrap;
  margin-top: 4px;
}
.cb-meta { flex: 1; }
.cb-title {
  font-family: var(--font-serif);
  font-size: 26px; font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 6px;
}
.cb-sub { font-size: 13px; color: var(--gray-400); }
.cb-badge {
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 13px; font-weight: 700;
  white-space: nowrap;
  letter-spacing: 1px;
  margin-top: 4px;
}
.dbms-badge { background: var(--gold-pale); color: var(--gray-800); border: 1px solid var(--gold); }
.toc-badge { background: #EAF3F3; color: var(--teal); border: 1px solid var(--teal); }
.cb-desc {
  padding: 20px 32px;
  font-size: 15px;
  color: var(--gray-600);
  line-height: 1.8;
  border-bottom: 1px solid var(--gray-100);
}
.cb-body {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 0;
}
.cb-modules {
  padding: 28px 32px;
  border-right: 1px solid var(--gray-100);
}
.module-title {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 2px; color: var(--gray-400); margin-bottom: 18px;
}
.modules-grid { display: flex; flex-direction: column; gap: 0; }
.module-item {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-50);
}
.module-item:last-child { border-bottom: none; }
.mod-num {
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 500;
  padding: 3px 8px;
  background: var(--gold-pale);
  border: 1px solid var(--gold);
  border-radius: var(--r-sm);
  color: var(--gray-800);
  flex-shrink: 0;
  margin-top: 2px;
}
.mod-num.toc-num { background: var(--teal-light); border-color: var(--teal); color: var(--teal); }
.mod-name { font-size: 14px; font-weight: 700; color: var(--gray-900); margin-bottom: 3px; }
.mod-topics { font-size: 12.5px; color: var(--gray-500, #7a7872); line-height: 1.6; }
.cb-sidebar { padding: 28px 24px; }
.cbs-block { margin-bottom: 24px; }
.cbs-title {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 2px; color: var(--gray-400); margin-bottom: 14px;
}
.co-list { display: flex; flex-direction: column; gap: 8px; }
.co-item { display: flex; align-items: flex-start; gap: 10px; font-size: 13px; color: var(--gray-600); line-height: 1.5; }
.co-tag {
  font-size: 10px; font-weight: 700; font-family: var(--font-mono);
  padding: 2px 7px;
  border-radius: var(--r-sm);
  background: var(--gold-pale);
  color: var(--gray-800);
  border: 1px solid var(--gold);
  flex-shrink: 0;
  margin-top: 1px;
}
.co-tag.toc-co { background: var(--teal-light); border-color: var(--teal); color: var(--teal); }
.tools-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tool-tag {
  font-size: 11px; font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: var(--r-sm);
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  color: var(--gray-600);
}
.tool-tag.toc-tool { background: var(--teal-light); border-color: var(--teal); color: var(--teal); }

/* Other sessions */
.other-sessions {
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  padding: 28px 32px;
}
.os-title { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--gray-400); margin-bottom: 20px; }
.os-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.os-item {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-md);
  padding: 18px 16px;
  transition: border-color 0.25s;
}
.os-item:hover { border-color: var(--gold); }
.os-icon { font-size: 18px; color: var(--gold); margin-bottom: 8px; }
.os-name { font-size: 14px; font-weight: 700; color: var(--gray-900); margin-bottom: 6px; }
.os-desc { font-size: 12px; color: var(--gray-600); line-height: 1.6; }

/* ─────────────────────────────
   RESPONSIBILITIES
───────────────────────────── */
.resp-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.resp-col { display: flex; flex-direction: column; gap: 2rem; }
.resp-group {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-lg);
  padding: 28px;
  transition: background 0.25s;
}
.resp-group:hover { background: rgba(255,255,255,0.06); }
.rg-header {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.rg-icon {
  width: 44px; height: 44px;
  border-radius: var(--r-md);
  background: rgba(201,151,60,0.12);
  border: 1px solid rgba(201,151,60,0.25);
  display: flex; align-items: center; justify-content: center;
  color: var(--gold-light);
  flex-shrink: 0;
}
.rg-icon svg { width: 22px; height: 22px; }
.rg-header h3 {
  font-family: var(--font-serif);
  font-size: 20px; font-weight: 700;
  color: var(--white);
}
.rg-list { display: flex; flex-direction: column; gap: 10px; }
.rg-list li {
  font-size: 13.5px;
  color: rgba(255,255,255,0.6);
  padding-left: 18px;
  position: relative;
  line-height: 1.6;
}
.rg-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0.6;
}

/* ─────────────────────────────
   MENTORSHIP
───────────────────────────── */
.mentor-layout { display: grid; grid-template-columns: 1fr 360px; gap: 2.5rem; align-items: start; }
.mentor-highlight {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-xl);
  padding: 32px;
  margin-bottom: 1.5rem;
  box-shadow: var(--sh-sm);
}
.mh-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 2px; color: var(--gold); margin-bottom: 10px;
}
.mh-title {
  font-family: var(--font-serif);
  font-size: 22px; font-weight: 700;
  color: var(--gray-900); margin-bottom: 4px;
}
.mh-detail { font-size: 13px; color: var(--gray-400); margin-bottom: 20px; }
.mh-quote {
  font-family: var(--font-serif);
  font-size: 17px; font-style: italic;
  color: var(--gray-700);
  border-left: 3px solid var(--gold);
  padding: 14px 20px;
  background: var(--gold-pale);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  margin-bottom: 20px;
  line-height: 1.7;
}
.mh-quote cite { display: block; margin-top: 8px; font-size: 12px; font-style: normal; color: var(--gray-400); }
.mh-para { font-size: 14.5px; color: var(--gray-600); line-height: 1.8; }

.mentor-process {
  background: var(--cream);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  padding: 24px;
}
.mp-title { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--gray-400); margin-bottom: 20px; }
.mp-steps {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  flex-wrap: wrap;
}
.mp-step {
  flex: 1; min-width: 130px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-md);
  padding: 14px;
}
.mps-num {
  font-family: var(--font-mono);
  font-size: 10px; font-weight: 700;
  color: var(--gold);
  margin-bottom: 6px;
  letter-spacing: 1px;
}
.mps-name { font-size: 13px; font-weight: 700; color: var(--gray-900); margin-bottom: 4px; }
.mps-desc { font-size: 12px; color: var(--gray-600); line-height: 1.6; }
.mp-arrow { color: var(--gold); font-size: 18px; margin-top: 22px; flex-shrink: 0; }

.ms-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  padding: 22px;
  margin-bottom: 1rem;
  box-shadow: var(--sh-sm);
}
.ms-card-title { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--gray-400); margin-bottom: 16px; }

/* Impact bars */
.ms-impact-list { display: flex; flex-direction: column; gap: 12px; }
.mi-item { }
.mi-bar-wrap {
  height: 6px;
  background: var(--gray-100);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 5px;
}
.mi-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  border-radius: 3px;
  width: 0;
  transition: width 1.4s var(--ease);
}
.mi-label { font-size: 12px; color: var(--gray-600); }

.ms-stats { display: flex; gap: 1rem; margin-bottom: 16px; }
.mss-item { flex: 1; text-align: center; padding: 14px; background: var(--cream); border-radius: var(--r-md); }
.mss-num { font-family: var(--font-serif); font-size: 32px; font-weight: 700; color: var(--gold); display: block; }
.mss-lbl { font-size: 11px; color: var(--gray-400); }
.ms-levels { display: flex; flex-direction: column; gap: 8px; }
.msl-item { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--gray-600); }
.msl-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); flex-shrink: 0; }

/* ─────────────────────────────
   DEPARTMENT
───────────────────────────── */
.dept-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; margin-bottom: 3rem; align-items: start; }
.dept-about p { font-size: 15px; color: var(--gray-600); line-height: 1.8; margin-bottom: 1.5rem; }
.dept-hod {
  display: flex; align-items: center; gap: 16px;
  background: var(--navy);
  border-radius: var(--r-lg);
  padding: 20px;
  margin-top: 1.5rem;
}
.hod-avatar {
  width: 50px; height: 50px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-size: 18px; font-weight: 700;
  color: var(--navy); flex-shrink: 0;
}
.hod-name { font-size: 16px; font-weight: 700; color: var(--white); margin-bottom: 2px; }
.hod-role { font-size: 12px; color: var(--gold-light); margin-bottom: 2px; }
.hod-dept { font-size: 11px; color: rgba(255,255,255,0.4); }
.ra-title { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--gray-400); margin-bottom: 16px; }
.ra-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.ra-item {
  display: flex; align-items: center; gap: 10px;
  font-size: 13.5px; color: var(--gray-600);
  padding: 10px 14px;
  border: 1px solid var(--gray-100);
  border-radius: var(--r-md);
  background: var(--white);
  transition: all 0.22s;
}
.ra-item:hover { border-color: var(--gold); background: var(--gold-pale); color: var(--gray-900); }
.ra-icon { color: var(--gold); font-size: 12px; }

/* Curriculum snapshot */
.curriculum-snap {
  background: var(--navy);
  border-radius: var(--r-xl);
  padding: 32px;
  overflow: hidden;
}
.cs-title { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--gold-light); margin-bottom: 24px; }
.cs-years { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 16px; }
.csy-label {
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1px; color: var(--gold); margin-bottom: 12px;
}
.csy-subjects { display: flex; flex-direction: column; gap: 6px; }
.csy-subjects span {
  font-size: 12px; color: rgba(255,255,255,0.5);
  padding: 5px 10px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--r-sm);
  line-height: 1.4;
}
.csy-subjects .active-sub {
  background: rgba(201,151,60,0.15);
  border: 1px solid rgba(201,151,60,0.35);
  color: var(--gold-light);
  font-weight: 700;
}
.cs-note { font-size: 11px; color: rgba(255,255,255,0.3); text-align: center; }

/* ─────────────────────────────
   INSTITUTION
───────────────────────────── */
.inst-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.inst-desc { font-size: 15px; color: var(--gray-600); line-height: 1.8; margin-bottom: 1.5rem; }
.inst-facts-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 2rem; }
.if-item {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-md);
  padding: 16px;
  text-align: center;
}
.if-val { font-family: var(--font-serif); font-size: 24px; font-weight: 700; color: var(--gold); }
.if-key { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--gray-400); margin-top: 4px; }
.inst-address {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  padding: 24px;
  margin-bottom: 1.5rem;
  box-shadow: var(--sh-sm);
}
.ia-title { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--gray-400); margin-bottom: 16px; }
.ia-line { font-size: 13.5px; color: var(--gray-600); padding: 5px 0; border-bottom: 1px solid var(--gray-50); }
.ia-line:last-of-type { border-bottom: none; }
.ia-line strong { color: var(--gray-900); }
.ia-map-btn {
  display: inline-block;
  margin-top: 16px;
  padding: 10px 20px;
  background: var(--navy);
  color: var(--gold-light);
  border-radius: var(--r-md);
  font-size: 13px;
  font-weight: 700;
  transition: background 0.25s;
}
.ia-map-btn:hover { background: var(--navy-light); }
.inst-programmes {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--sh-sm);
}
.ip-title { padding: 14px 20px; background: var(--navy); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--gold-light); }
.ip-list { padding: 8px 0; }
.ip-item {
  padding: 12px 20px;
  font-size: 14px;
  color: var(--gray-600);
  border-bottom: 1px solid var(--gray-50);
  transition: background 0.22s, color 0.22s;
}
.ip-item:last-child { border-bottom: none; }
.ip-item:hover { background: var(--gray-50); }
.active-prog { color: var(--gold) !important; font-weight: 700; background: var(--gold-pale) !important; }

/* ─────────────────────────────
   CONTACT
───────────────────────────── */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 1rem; }
.ci-item {
  display: flex; align-items: flex-start; gap: 18px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-lg);
  padding: 20px 22px;
  transition: background 0.25s, border-color 0.25s;
}
.ci-item:hover { background: rgba(255,255,255,0.08); border-color: rgba(201,151,60,0.3); }
.ci-icon {
  width: 46px; height: 46px; border-radius: 50%;
  background: rgba(201,151,60,0.12);
  border: 1px solid rgba(201,151,60,0.25);
  display: flex; align-items: center; justify-content: center;
  color: var(--gold-light);
  flex-shrink: 0;
}
.ci-icon svg { width: 20px; height: 20px; }
.ci-label { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; color: rgba(255,255,255,0.4); margin-bottom: 5px; }
.ci-value { font-size: 15px; color: var(--white); font-weight: 400; margin-bottom: 3px; }
.ci-value a { color: var(--gold-light); cursor: pointer; }
.ci-value a:hover { text-decoration: underline; }
.ci-hint { font-size: 12px; color: rgba(255,255,255,0.3); }

/* Contact form */
.contact-form-wrap {
  background: var(--white);
  border-radius: var(--r-xl);
  padding: 32px;
  box-shadow: var(--sh-xl);
}
.cf-title {
  font-family: var(--font-serif);
  font-size: 22px; font-weight: 700;
  color: var(--gray-900); margin-bottom: 24px;
}
.cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.cf-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.cf-field label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--gray-400); }
.cf-field input,
.cf-field textarea {
  padding: 12px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--r-md);
  font-size: 14px;
  color: var(--gray-900);
  background: var(--gray-50);
  transition: border-color 0.25s, background 0.25s;
  outline: none;
  resize: vertical;
}
.cf-field input:focus,
.cf-field textarea:focus {
  border-color: var(--gold);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(201,151,60,0.12);
}
.cf-err { font-size: 11px; color: #C0392B; margin-top: 2px; min-height: 16px; }
.cf-submit {
  width: 100%;
  padding: 14px;
  background: var(--navy);
  color: var(--white);
  border: none;
  border-radius: var(--r-md);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.5px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: background 0.25s, transform 0.25s;
  margin-top: 4px;
}
.cf-submit:hover { background: var(--navy-light); transform: translateY(-2px); }
.cf-arrow { transition: transform 0.25s; }
.cf-submit:hover .cf-arrow { transform: translateX(4px); }
.cf-success {
  display: none;
  text-align: center;
  margin-top: 16px;
  padding: 12px;
  background: #EAF7F0;
  border: 1px solid #1B6B6B;
  border-radius: var(--r-md);
  font-size: 13.5px;
  color: var(--teal);
  font-weight: 500;
}

/* ─────────────────────────────
   FOOTER
───────────────────────────── */
.site-footer {
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 3rem 0 1.5rem;
}
.footer-top {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 2rem; flex-wrap: wrap;
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.ft-brand { display: flex; align-items: center; gap: 18px; }
.ft-monogram {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-size: 20px; font-weight: 700;
  color: var(--navy); flex-shrink: 0;
}
.ft-name { font-family: var(--font-serif); font-size: 18px; font-weight: 700; color: var(--white); }
.ft-sub { font-size: 13px; color: var(--gold-light); margin-bottom: 3px; }
.ft-college { font-size: 12px; color: rgba(255,255,255,0.35); }
.ft-links { display: flex; gap: 3rem; }
.ftl-col { display: flex; flex-direction: column; gap: 8px; }
.ftl-head { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--gold); margin-bottom: 4px; }
.ftl-col a { font-size: 13px; color: rgba(255,255,255,0.45); transition: color 0.2s; }
.ftl-col a:hover { color: var(--white); }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  color: rgba(255,255,255,0.22);
}

/* ─────────────────────────────
   BACK TO TOP
───────────────────────────── */
.btt {
  position: fixed; bottom: 2rem; right: 2rem;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--gold);
  border: none;
  display: flex; align-items: center; justify-content: center;
  color: var(--navy);
  box-shadow: var(--sh-md);
  opacity: 0; transform: translateY(16px);
  transition: all 0.3s var(--ease);
  z-index: 400;
}
.btt.show { opacity: 1; transform: translateY(0); }
.btt:hover { background: var(--gold-light); transform: translateY(-3px); }

/* Toast */
.toast-msg {
  position: fixed; bottom: 5rem; left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--navy);
  color: var(--gold-light);
  padding: 10px 22px;
  border-radius: var(--r-md);
  border: 1px solid rgba(201,151,60,0.4);
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  z-index: 9000;
  transition: all 0.3s var(--ease);
  white-space: nowrap;
}
.toast-msg.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ─────────────────────────────
   RESPONSIVE
───────────────────────────── */
@media (max-width: 1280px) {
  .hero-wrap { gap: 2rem; grid-template-columns: 1fr 400px; }
  .hero-profile-img { max-width: 400px; }
}

@media (max-width: 1100px) {
  .hero-wrap { grid-template-columns: 1fr 340px; }
  .hero-profile-img { max-width: 340px; }
  .teaching-grid { grid-template-columns: repeat(2, 1fr); }
  .cb-body { grid-template-columns: 1fr; }
  .cb-modules { border-right: none; border-bottom: 1px solid var(--gray-100); }
  .os-grid { grid-template-columns: repeat(2, 1fr); }
  .cs-years { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 960px) {
  :root { --sidebar-w: 0px; --content-ml: 0px; }
  .sidebar { display: none; }
  .topbar { display: block; }
  .main-content { margin-left: 0; padding-top: 58px; }
  .hero-wrap { grid-template-columns: 1fr; }
  .hero-right { display: none; }
  .hero-wrap { grid-template-columns: 1fr; text-align: center; }
  .hero-left { display: flex; flex-direction: column; align-items: center; }
  .hero-right { display: flex; order: -1; margin-bottom: 3rem; }
  .hero-profile-img { max-width: 320px; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; width: 100%; }
  .profile-table { overflow-x: auto; display: block; }
  .about-layout { grid-template-columns: 1fr; }
  .dept-layout { grid-template-columns: 1fr; }
  .inst-layout { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .resp-layout { grid-template-columns: 1fr; }
  .mentor-layout { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; }
  .inst-facts-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .teaching-grid { grid-template-columns: 1fr; }
  .os-grid { grid-template-columns: 1fr; }
  .cf-row { grid-template-columns: 1fr; }
  .ra-grid { grid-template-columns: 1fr; }
  .cs-years { grid-template-columns: 1fr; }
  .mp-steps { flex-direction: column; }
  .mp-arrow { display: none; }
  .affil-items { flex-direction: column; }
  .ms-stats { flex-direction: column; }
  .hero-stats { flex-wrap: wrap; }
  .hs-sep { display: none; }
  .ft-links { display: none; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
  .section-container { padding: 0 1.2rem; }
  .hero-wrap { padding: 5rem 1.2rem 3rem; }
  
  /* Hero responsive */
  .hero-wrap { grid-template-columns: 1fr; gap: 2rem; }
  .hero-left { text-align: center; align-items: center; }
  .hero-title { font-size: clamp(36px, 10vw, 56px); }
  .ht-name { font-size: clamp(38px, 12vw, 64px); }
  .hero-badge { font-size: 11px; padding: 5px 12px; }
  .hero-designation { font-size: 13px; }
  .hero-bio { font-size: 13px; }
  .hero-cta { flex-direction: column; width: 100%; }
  .cta-primary, .cta-ghost { width: 100%; text-align: center; }
  .hero-stats { flex-wrap: wrap; justify-content: center; gap: 1rem; }
  .hs-item { padding: 0 12px; min-width: 80px; }
  .hs-num { font-size: 28px; }
  
  /* Profile image */
  .hero-profile-wrap { order: -1; margin-bottom: 1rem; }
  .hero-profile-img { max-width: 220px !important; aspect-ratio: 1/1; }
  .pf-card { width: 100%; max-width: 200px; padding: 20px 16px; }
  .pf-monogram { font-size: 32px; }
  
  /* About section */
  .about-layout { gap: 2.5rem; }
  .about-para { font-size: 14px; }
  .profile-table { font-size: 12px; }
  .pt-key { width: 90px; padding: 10px 12px; }
  .pt-val { padding: 10px 12px; font-size: 12px; }
  .et-wrap { gap: 6px; }
  .et-tag { font-size: 11px; padding: 4px 10px; }
  
  /* Education/Timeline */
  .timeline { padding-left: 0; }
  .tl-item { flex-direction: column; gap: 0.5rem; }
  .tl-marker { display: none; }
  .tl-degree { font-size: 18px; }
  .tl-field { font-size: 13px; }
  .tl-meta { flex-direction: column; align-items: flex-start; gap: 6px; }
  .tl-skills { gap: 6px; }
  .tl-skills span { font-size: 11px; padding: 3px 8px; }
  
  /* Teaching */
  .teach-card { padding: 20px 16px; }
  .tc-num { font-size: 32px; top: 12px; right: 14px; }
  .tc-icon { width: 36px; height: 36px; margin-bottom: 12px; }
  .teach-card h3 { font-size: 16px; }
  .teach-card p { font-size: 13px; }
  .method-bar { padding: 20px 16px; }
  .mb-item { flex-direction: column; align-items: flex-start; gap: 6px; }
  .mb-block { width: 100% !important; }
  
  /* Subjects/Courses */
  .course-block { margin-bottom: 1.5rem; }
  .cb-header { flex-direction: column; gap: 12px; padding: 20px 16px; }
  .cb-code { margin-top: 0; }
  .cb-title { font-size: 20px; }
  .cb-sub { font-size: 12px; }
  .cb-badge { align-self: flex-start; }
  .cb-desc { padding: 16px; font-size: 13px; }
  .cb-body { grid-template-columns: 1fr; }
  .cb-modules { padding: 20px 16px; }
  .module-item { flex-direction: column; gap: 8px; }
  .mod-num { align-self: flex-start; }
  .cb-sidebar { padding: 20px 16px; }
  .os-grid { grid-template-columns: 1fr; }
  .os-item { padding: 14px 12px; }
  
  /* Responsibilities */
  .resp-layout { gap: 1.5rem; }
  .resp-group { padding: 20px 16px; }
  .rg-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .rg-icon { width: 40px; height: 40px; }
  .rg-header h3 { font-size: 18px; }
  .rg-list li { font-size: 13px; }
  
  /* Mentorship */
  .mentor-layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .mentor-highlight { padding: 20px 16px; }
  .mh-title { font-size: 18px; }
  .mh-quote { font-size: 14px; padding: 12px 14px; }
  .mentor-process { padding: 16px; }
  .mp-step { min-width: 100%; }
  .ms-card { padding: 16px; }
  
  /* Certificates */
  .cert-grid { grid-template-columns: 1fr; gap: 16px; }
  .cert-card { border-radius: 12px; }
  .cert-click-box { aspect-ratio: 3/2; }
  .cert-icon-wrap { width: 48px; height: 48px; }
  .cert-icon-wrap svg { width: 20px; height: 20px; }
  .cert-card-body { padding: 14px 16px; }
  .cert-card-title { font-size: 14px; }
  .cert-card-issuer { font-size: 11px; }
  .cert-summary-strip { flex-direction: column; gap: 16px; padding: 20px; }
  .css-div { display: none; }
  .css-it { flex-direction: row; align-items: center; gap: 12px; }
  .css-n { font-size: 24px; }
  .css-l { font-size: 11px; }
  .css-txt { min-width: 100%; font-size: 13px; }
  
  /* Department */
  .dept-layout { gap: 2rem; }
  .dept-about p { font-size: 14px; }
  .dept-hod { flex-direction: column; text-align: center; gap: 12px; }
  .ra-grid { grid-template-columns: 1fr; }
  .ra-item { font-size: 12px; padding: 8px 10px; }
  .curriculum-snap { padding: 20px 16px; }
  .cs-years { grid-template-columns: 1fr; gap: 12px; }
  .csy-subjects { flex-direction: row; flex-wrap: wrap; gap: 4px; }
  .csy-subjects span { font-size: 10px; padding: 3px 6px; }
  
  /* Institution */
  .inst-layout { gap: 2rem; }
  .inst-desc { font-size: 14px; }
  .inst-facts-grid { grid-template-columns: repeat(2, 1fr); }
  .if-item { padding: 12px; }
  .if-val { font-size: 20px; }
  .if-key { font-size: 10px; }
  .inst-address { padding: 16px; }
  .ia-line { font-size: 12px; }
  .ip-item { font-size: 13px; padding: 10px 16px; }
  
  /* Contact */
  .contact-layout { grid-template-columns: 1fr; gap: 2rem; }
  .ci-item { padding: 16px; flex-direction: column; gap: 12px; }
  .ci-icon { width: 40px; height: 40px; }
  .ci-value { font-size: 14px; }
  .contact-form-wrap { padding: 20px 16px; }
  .cf-title { font-size: 18px; }
  .cf-field input, .cf-field textarea { font-size: 14px; padding: 10px 12px; }
  .cf-submit { padding: 12px; font-size: 14px; }
  
  /* Footer */
  .site-footer { padding: 2rem 0 1rem; }
  .footer-top { gap: 1.5rem; }
  .ft-brand { flex-direction: column; text-align: center; }
  .ft-monogram { width: 48px; height: 48px; font-size: 18px; }
  .ft-name { font-size: 16px; }
  .ft-sub { font-size: 12px; }
  .ft-college { font-size: 11px; }
  .footer-bottom { font-size: 11px; }
  
  /* Lightbox */
  .cert-lb-panel { padding: 12px; }
  .cert-lb-img { max-width: 95vw; max-height: 60vh; }
  .cert-lb-title { font-size: 14px; }
  .cert-lb-sub { font-size: 12px; }
  .cert-lb-arr { display: none; }
  .cert-lb-x { top: 12px; right: 12px; width: 38px; height: 38px; font-size: 16px; }
  
  /* Back to top */
  .btt { bottom: 1.2rem; right: 1.2rem; width: 42px; height: 42px; }
  
  /* Toast */
  .toast-msg { bottom: 4rem; padding: 8px 16px; font-size: 12px; }
  
  /* Section titles */
  .sec-title { font-size: clamp(26px, 6vw, 36px); margin-bottom: 2rem; }
  .sec-label { font-size: 10px; letter-spacing: 2px; }
}

/* Extra small devices */
@media (max-width: 400px) {
  .section { padding: 3.5rem 0; }
  .hero-title { font-size: 30px; }
  .ht-name { font-size: 32px; }
  .hero-badge { font-size: 10px; }
  .hero-designation { font-size: 12px; }
  .hero-bio { font-size: 12px; }
  .hs-item { min-width: 70px; padding: 0 8px; }
  .hs-num { font-size: 24px; }
  .hs-lbl { font-size: 10px; }
  .hero-profile-img { max-width: 180px !important; }
  .cb-title { font-size: 18px; }
  .cert-card-title { font-size: 13px; }
  .if-val { font-size: 18px; }
}