/* ===================================================
   MAIN.CSS — UoP English Club Design System
   University of Peradeniya, Faculty of Engineering
   =================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

/* ─── CSS Custom Properties ─────────────────────── */
:root {
  /* UoP Official Colors */
  --gold: #c9a84c;
  --gold-light: #e8c96b;
  --gold-dark: #9e7c2c;
  --maroon: #7b1d2e;
  --maroon-light: #a82840;
  --maroon-dark: #4f0d1a;

  /* Engineering Faculty Pink */
  --pink: #d63384;
  --pink-light: #f06caa;
  --pink-dark: #9c1f5e;

  /* Light Theme */
  --bg-primary: #fafafa;
  --bg-secondary: #f0f0f0;
  --bg-card: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.7);
  --text-primary: #0f0f0f;
  --text-secondary: #4a4a4a;
  --text-muted: #888888;
  --border: rgba(0, 0, 0, 0.08);
  --shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 12px 50px rgba(0, 0, 0, 0.15);
  --nav-bg: rgba(250, 250, 250, 0.85);
  --nav-border: rgba(201, 168, 76, 0.2);
  --hero-overlay: rgba(250, 250, 250, 0.6);

  /* Gradients */
  --gradient-gold: linear-gradient(135deg, var(--gold), var(--gold-light));
  --gradient-maroon: linear-gradient(135deg, var(--maroon), var(--maroon-light));
  --gradient-pink: linear-gradient(135deg, var(--pink-dark), var(--pink));
  --gradient-hero: linear-gradient(135deg, #fff9f0 0%, #fef0f5 50%, #fff4e0 100%);
  --gradient-accent: linear-gradient(135deg, var(--gold), var(--pink));

  /* Typography — Apple-style system font stack */
  --font-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Plus Jakarta Sans', 'Helvetica Neue', sans-serif;
  --font-ui: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Plus Jakarta Sans', 'Helvetica Neue', sans-serif;

  /* Spacing */
  --section-padding: 5rem 2rem;
  --card-radius: 16px;
  --nav-height: 72px;

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a26;
  --bg-glass: rgba(20, 20, 35, 0.75);
  --text-primary: #f0f0f0;
  --text-secondary: #c0c0c0;
  --text-muted: #777777;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 12px 50px rgba(201, 168, 76, 0.15);
  --nav-bg: rgba(10, 10, 15, 0.9);
  --nav-border: rgba(201, 168, 76, 0.15);
  --hero-overlay: rgba(10, 10, 15, 0.6);
  --gradient-hero: linear-gradient(135deg, #0a0a0f 0%, #12091a 50%, #0f0a00 100%);
}

/* ─── Reset & Base ───────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  transition: background-color 0.4s ease, color 0.4s ease;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* ─── Navigation ────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--nav-border);
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: 0 4px 30px rgba(201, 168, 76, 0.1);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.nav-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(201, 168, 76, 0.3));
}

.nav-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav-brand-title {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-brand-sub {
  font-family: var(--font-body);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.5rem 0.875rem;
  border-radius: 8px;
  transition: color 0.25s ease, background 0.25s ease;
  position: relative;
  overflow: hidden;
}

/* Kinetic underline bar */
.nav-link .nav-link-inner {
  position: relative;
  display: inline-block;
}

.nav-link .nav-underline {
  display: block;
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-gold);
  border-radius: 2px;
  clip-path: inset(0 100% 0 0);
  transition: clip-path 0.35s cubic-bezier(0.77, 0, 0.175, 1);
}

.nav-link:hover .nav-underline,
.nav-link.active .nav-underline {
  clip-path: inset(0 0% 0 0);
}

.nav-link:hover,
.nav-link.active {
  color: var(--gold);
  background: rgba(201, 168, 76, 0.08);
}

/* Groups Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-dropdown-toggle .chevron {
  font-size: 0.6rem;
  transition: transform 0.3s ease;
}

.nav-dropdown:hover .chevron {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem;
  min-width: 480px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-hover);
  backdrop-filter: blur(20px);
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-section-title {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding: 0 0.5rem 0.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.5rem;
}

.dropdown-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}

.dropdown-item {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.4rem 0.5rem;
  border-radius: 8px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid transparent;
}

.dropdown-item:hover {
  background: var(--gradient-gold);
  color: white;
  border-color: var(--gold);
  transform: scale(1.05);
}

/* Nav Controls */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: rgba(201, 168, 76, 0.1);
  border-color: var(--gold);
  transform: rotate(15deg);
}

.btn-admin-nav {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 600;
  color: white;
  background: var(--gradient-gold);
  padding: 0.45rem 1rem;
  border-radius: 8px;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-admin-nav:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(201, 168, 76, 0.4);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ─── Buttons ────────────────────────────────────── */
.btn {
  font-family: var(--font-ui);
  font-weight: 600;
  border: none;
  cursor: pointer;
  border-radius: 12px;
  transition: box-shadow 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
  /* Magnetic spring: JS sets these vars */
  transform: translate(var(--btn-tx, 0px), var(--btn-ty, 0px)) scale(var(--btn-scale, 1));
  will-change: transform;
}

.btn-primary {
  background: var(--gradient-gold);
  color: white;
  padding: 0.875rem 2rem;
  font-size: 0.95rem;
  box-shadow: 0 4px 20px rgba(201, 168, 76, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 12px 40px rgba(201, 168, 76, 0.55);
}

.btn-secondary {
  background: transparent;
  color: var(--gold);
  border: 2px solid var(--gold);
  padding: 0.8rem 1.875rem;
  font-size: 0.95rem;
}

.btn-secondary:hover {
  background: rgba(201, 168, 76, 0.08);
  box-shadow: 0 8px 30px rgba(201, 168, 76, 0.2);
}

.btn-pink {
  background: var(--gradient-pink);
  color: white;
  padding: 0.875rem 2rem;
  font-size: 0.95rem;
  box-shadow: 0 4px 20px rgba(214, 51, 132, 0.3);
}

.btn-pink:hover {
  box-shadow: 0 12px 40px rgba(214, 51, 132, 0.55);
}

/* ─── Section Utilities ─────────────────────────── */
.section {
  padding: var(--section-padding);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-eyebrow {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
  margin-bottom: 1rem;
}

.section-title span {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 550px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ─── Cards ─────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(201, 168, 76, 0.2);
}

.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
}

/* ─── Badge ──────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  letter-spacing: 0.05em;
}

.badge-gold {
  background: rgba(201, 168, 76, 0.12);
  color: var(--gold);
  border: 1px solid rgba(201, 168, 76, 0.25);
}

.badge-pink {
  background: rgba(214, 51, 132, 0.1);
  color: var(--pink);
  border: 1px solid rgba(214, 51, 132, 0.2);
}

.badge-maroon {
  background: rgba(123, 29, 46, 0.1);
  color: var(--maroon-light);
  border: 1px solid rgba(123, 29, 46, 0.2);
}

/* ─── Scroll Animations ─────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in {
  opacity: 0;
  transition: opacity 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
}

/* Slide entrance variants */
.slide-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.slide-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.slide-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.stagger-1 { transition-delay: 0.08s; }
.stagger-2 { transition-delay: 0.16s; }
.stagger-3 { transition-delay: 0.24s; }
.stagger-4 { transition-delay: 0.32s; }
.stagger-5 { transition-delay: 0.40s; }
.stagger-6 { transition-delay: 0.48s; }
.stagger-7 { transition-delay: 0.56s; }
.stagger-8 { transition-delay: 0.64s; }

/* ─── Divider ────────────────────────────────────── */
.divider {
  width: 60px;
  height: 3px;
  background: var(--gradient-gold);
  border-radius: 3px;
  margin: 0 auto 1.5rem;
}

/* ─── Tag ────────────────────────────────────────── */
.tag {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.2rem 0.6rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ─── Toast Notification ────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.875rem 1.25rem;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideInRight 0.4s ease;
  max-width: 320px;
}

.toast.success { border-left: 3px solid #22c55e; }
.toast.error   { border-left: 3px solid #ef4444; }
.toast.info    { border-left: 3px solid var(--gold); }

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

/* ─── Footer ─────────────────────────────────────── */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 4rem 2rem 2rem;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.footer-logo-text .title {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--gold);
}

.footer-logo-text .sub {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.footer-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.footer-heading {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold);
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--gold);
  padding-left: 4px;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: 0.5rem;
}

.social-btn {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.social-btn:hover {
  background: rgba(201, 168, 76, 0.1);
  color: var(--gold);
  border-color: rgba(201, 168, 76, 0.3);
  transform: translateY(-2px);
}

/* ─── Particles Background ──────────────────────── */
#particles-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* ─── Preloader / Loading Screen ─────────────────── */
#loading-screen {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  overflow: hidden;
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              filter 0.7s ease;
}

/* Theme-specific preloader backgrounds (default light) */
[data-theme="light"] #loading-screen,
:root:not([data-theme="dark"]) #loading-screen {
  background: linear-gradient(135deg, #fdfbf7 0%, #f4f5f8 50%, #faf6f0 100%);
}

[data-theme="dark"] #loading-screen {
  background: radial-gradient(circle at 50% 40%, #0d0d18 0%, #06060a 100%);
}

#loading-screen.fade-out {
  opacity: 0;
  transform: scale(1.06);
  filter: blur(12px);
  pointer-events: none;
}

/* ── Ambient Background Orbs ── */
.preloader-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.preloader-bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0;
  animation: preloaderOrbIn 1.2s ease forwards;
}

/* Light Mode Orbs */
[data-theme="light"] .preloader-bg-orb-1,
:root:not([data-theme="dark"]) .preloader-bg-orb-1 {
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(201,168,76,0.22) 0%, transparent 70%);
  top: -180px;
  right: -140px;
  animation-delay: 0.1s;
}

[data-theme="light"] .preloader-bg-orb-2,
:root:not([data-theme="dark"]) .preloader-bg-orb-2 {
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(214,51,132,0.16) 0%, transparent 70%);
  bottom: -120px;
  left: -100px;
  animation-delay: 0.3s;
}

[data-theme="light"] .preloader-bg-orb-3,
:root:not([data-theme="dark"]) .preloader-bg-orb-3 {
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(123,29,46,0.10) 0%, transparent 70%);
  top: 50%;
  left: 40%;
  animation-delay: 0.5s;
}

/* Dark Mode Orbs */
[data-theme="dark"] .preloader-bg-orb-1 {
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(201,168,76,0.35) 0%, transparent 70%);
  top: -180px;
  right: -140px;
  animation-delay: 0.1s;
}

[data-theme="dark"] .preloader-bg-orb-2 {
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(214,51,132,0.28) 0%, transparent 70%);
  bottom: -120px;
  left: -100px;
  animation-delay: 0.3s;
}

[data-theme="dark"] .preloader-bg-orb-3 {
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(123,29,46,0.22) 0%, transparent 70%);
  top: 50%;
  left: 40%;
  animation-delay: 0.5s;
}

@keyframes preloaderOrbIn {
  from { opacity: 0; transform: scale(0.8); }
  to   { opacity: 1; transform: scale(1); }
}

/* ── Central Scene Container ── */
.preloader-scene {
  position: relative;
  width: 240px;
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: preloaderSceneIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes preloaderSceneIn {
  from { opacity: 0; transform: scale(0.7) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* ── SVG Arc ── */
.preloader-arc-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.preloader-track-circle {
  stroke: rgba(0, 0, 0, 0.08);
}
[data-theme="dark"] .preloader-track-circle {
  stroke: rgba(255, 255, 255, 0.08);
}

.preloader-tick-dot-gold {
  fill: rgba(201, 168, 76, 0.6);
}
.preloader-tick-dot-pink {
  fill: rgba(214, 51, 132, 0.5);
}
[data-theme="dark"] .preloader-tick-dot-gold {
  fill: rgba(201, 168, 76, 0.5);
}
[data-theme="dark"] .preloader-tick-dot-pink {
  fill: rgba(214, 51, 132, 0.45);
}

#preloader-arc-path {
  transition: stroke-dashoffset 0.05s linear;
}

/* ── Orbital Rings ── */
.preloader-orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px solid transparent;
}

[data-theme="light"] .preloader-orbit-1,
:root:not([data-theme="dark"]) .preloader-orbit-1 {
  width: 170px;
  height: 170px;
  border-color: rgba(201, 168, 76, 0.25);
  animation: orbitSpin1 4s linear infinite;
}

[data-theme="light"] .preloader-orbit-2,
:root:not([data-theme="dark"]) .preloader-orbit-2 {
  width: 140px;
  height: 140px;
  border-color: rgba(214, 51, 132, 0.20);
  animation: orbitSpin2 6s linear infinite reverse;
}

[data-theme="dark"] .preloader-orbit-1 {
  width: 170px;
  height: 170px;
  border-color: rgba(201, 168, 76, 0.15);
  animation: orbitSpin1 4s linear infinite;
}

[data-theme="dark"] .preloader-orbit-2 {
  width: 140px;
  height: 140px;
  border-color: rgba(214, 51, 132, 0.12);
  animation: orbitSpin2 6s linear infinite reverse;
}

@keyframes orbitSpin1 {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes orbitSpin2 {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.orbit-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  top: -4px;
  left: 50%;
  transform: translateX(-50%);
}

.orbit-dot-gold {
  background: var(--gold);
  box-shadow: 0 0 10px 3px rgba(201,168,76,0.7);
}

.orbit-dot-pink {
  background: var(--pink);
  box-shadow: 0 0 10px 3px rgba(214,51,132,0.7);
}

/* ── Logo Center ── */
.preloader-logo-wrap {
  position: absolute;
  width: 88px;
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preloader-logo-glow {
  position: absolute;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  animation: preloaderGlowPulse 2s ease-in-out infinite;
}

[data-theme="light"] .preloader-logo-glow,
:root:not([data-theme="dark"]) .preloader-logo-glow {
  background: radial-gradient(circle, rgba(201,168,76,0.22) 0%, transparent 70%);
}

[data-theme="dark"] .preloader-logo-glow {
  background: radial-gradient(circle, rgba(201,168,76,0.35) 0%, transparent 70%);
}

@keyframes preloaderGlowPulse {
  0%, 100% { transform: scale(1);   opacity: 0.6; }
  50%       { transform: scale(1.5); opacity: 1; }
}

.loader-logo {
  width: 68px;
  height: 68px;
  object-fit: contain;
  position: relative;
  z-index: 1;
  animation: preloaderLogoPulse 3s ease infinite;
}

[data-theme="light"] .loader-logo,
:root:not([data-theme="dark"]) .loader-logo {
  filter: drop-shadow(0 4px 14px rgba(201,168,76,0.35));
}

[data-theme="dark"] .loader-logo {
  filter: drop-shadow(0 0 16px rgba(201,168,76,0.6));
}

@keyframes preloaderLogoPulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.04); }
}

/* ── Percentage Counter ── */
.preloader-percent-ring {
  position: absolute;
  bottom: -52px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  white-space: nowrap;
  display: flex;
  align-items: baseline;
  gap: 1px;
}

[data-theme="light"] .preloader-percent-ring,
:root:not([data-theme="dark"]) .preloader-percent-ring {
  color: rgba(0, 0, 0, 0.45);
}

[data-theme="dark"] .preloader-percent-ring {
  color: rgba(255, 255, 255, 0.35);
}

#preloader-percent {
  font-size: 1.15rem;
  font-weight: 800;
  min-width: 2ch;
  text-align: right;
}

[data-theme="light"] #preloader-percent,
:root:not([data-theme="dark"]) #preloader-percent {
  color: #9e7c2c;
}

[data-theme="dark"] #preloader-percent {
  color: var(--gold);
}

[data-theme="light"] .preloader-percent-sign,
:root:not([data-theme="dark"]) .preloader-percent-sign {
  font-size: 0.7rem;
  color: rgba(158, 124, 44, 0.75);
}

[data-theme="dark"] .preloader-percent-sign {
  font-size: 0.7rem;
  color: rgba(201, 168, 76, 0.6);
}

/* ── Text Group ── */
.preloader-text-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1rem;
  animation: preloaderTextIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

@keyframes preloaderTextIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.preloader-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
}

[data-theme="light"] .preloader-title,
:root:not([data-theme="dark"]) .preloader-title {
  color: #111827;
}

[data-theme="dark"] .preloader-title {
  color: #ffffff;
}

.preloader-title .pl {
  display: inline-block;
  opacity: 0;
  transform: translateY(14px);
  animation: plIn 0.45s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.preloader-title .pl-gap {
  width: 0.5em;
  opacity: 1;
  transform: none;
  animation: none;
}

/* Stagger each letter */
.preloader-title .pl:nth-child(1)  { animation-delay: 0.20s; }
.preloader-title .pl:nth-child(2)  { animation-delay: 0.27s; }
.preloader-title .pl:nth-child(3)  { animation-delay: 0.34s; }
.preloader-title .pl:nth-child(5)  { animation-delay: 0.41s; }
.preloader-title .pl:nth-child(6)  { animation-delay: 0.46s; }
.preloader-title .pl:nth-child(7)  { animation-delay: 0.51s; }
.preloader-title .pl:nth-child(8)  { animation-delay: 0.56s; }
.preloader-title .pl:nth-child(9)  { animation-delay: 0.61s; }
.preloader-title .pl:nth-child(10) { animation-delay: 0.66s; }
.preloader-title .pl:nth-child(11) { animation-delay: 0.71s; }
.preloader-title .pl:nth-child(13) { animation-delay: 0.78s; }
.preloader-title .pl:nth-child(14) { animation-delay: 0.83s; }
.preloader-title .pl:nth-child(15) { animation-delay: 0.88s; }
.preloader-title .pl:nth-child(16) { animation-delay: 0.93s; }

@keyframes plIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Gold gradient on UoP */
.preloader-title .pl:nth-child(-n+3) {
  background: linear-gradient(135deg, #c9a84c, #e8c96b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.preloader-subtitle {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

[data-theme="light"] .preloader-subtitle,
:root:not([data-theme="dark"]) .preloader-subtitle {
  color: #6b7280;
}

[data-theme="dark"] .preloader-subtitle {
  color: rgba(255, 255, 255, 0.40);
}

/* ── Bottom Bar ── */
.loader-bar {
  width: 260px;
  height: 2px;
  border-radius: 2px;
  overflow: hidden;
  animation: preloaderTextIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.5s both;
}

[data-theme="light"] .loader-bar,
:root:not([data-theme="dark"]) .loader-bar {
  background: rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .loader-bar {
  background: rgba(255, 255, 255, 0.06);
}

.loader-progress {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #c9a84c, #d63384, #e8c96b);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(201,168,76,0.6);
  transition: width 0.05s linear;
}

/* Removed old animation-driven progress — now JS-driven */


/* ─── Scrollbar ─────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb {
  background: var(--gold-dark);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* ─── Responsive ─────────────────────────────────── */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --nav-height: 64px; }

  .nav-links, .btn-admin-nav { display: none; }
  .hamburger { display: flex; }

  .nav-dropdown-menu { display: none !important; }

  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }

  .section { padding: 3.5rem 1.25rem; }
}

@media (max-width: 480px) {
  .container { padding: 0 1rem; }
}

/* ═══════════════════════════════════════════════════
   MIND-BLOWING ANIMATIONS & 3D SPECULAR EFFECTS
   ═══════════════════════════════════════════════════ */

/* ─── 3D Specular Glare / Shimmer on Interactive Cards ─── */
.highlight-card, .group-card, .post-card, .feature-item, .stat-card {
  position: relative;
  overflow: hidden;
  will-change: transform;
}

.highlight-card::after, .group-card::after, .post-card::after, .feature-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(255, 255, 255, 0.12),
    transparent 45%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 3;
}

[data-theme="dark"] .highlight-card::after,
[data-theme="dark"] .group-card::after,
[data-theme="dark"] .post-card::after,
[data-theme="dark"] .feature-item::after {
  background: radial-gradient(
    600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(201, 168, 76, 0.18),
    transparent 45%
  );
}

.highlight-card:hover::after,
.group-card:hover::after,
.post-card:hover::after,
.feature-item:hover::after {
  opacity: 1;
}

/* ─── Holographic Glow Borders ─── */
@keyframes borderGlowPulse {
  0%, 100% {
    box-shadow: 0 0 15px rgba(201, 168, 76, 0.15), 0 0 30px rgba(201, 168, 76, 0.05);
  }
  50% {
    box-shadow: 0 0 25px rgba(214, 51, 132, 0.25), 0 0 45px rgba(201, 168, 76, 0.15);
  }
}

.glow-animated {
  animation: borderGlowPulse 4s ease-in-out infinite;
}

/* ─── Button Light Sweep Shimmer ─── */
.btn-primary, .btn-cta, .btn-pink, .btn-login {
  position: relative;
  overflow: hidden;
}

.btn-primary::after, .btn-cta::after, .btn-pink::after, .btn-login::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -60%;
  width: 40%;
  height: 200%;
  background: linear-gradient(
    60deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: rotate(25deg);
  pointer-events: none;
  animation: buttonSweep 5s ease-in-out infinite;
}

@keyframes buttonSweep {
  0%, 80%, 100% { left: -60%; }
  40% { left: 140%; }
}

/* ─── Smooth Tab Content Fade ─── */
@keyframes tabContentFade {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ─── Mobile Menu Animation ─── */
@keyframes mobileMenuIn {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}