/* ═══════════════════════════════════════════════
   UPSIFS — RETRO 8-BIT ARCADE FESTIVAL THEME
   Three.js WebGL & GSAP Endless Looping 90s NES Super Mario Game Engine
   ═══════════════════════════════════════════════ */

/* ═══ CSS CUSTOM PROPERTIES ═══ */
:root {
  --sky-bg: #74a4ff;
  --sky-bg-dark: #5c90ee;
  --board-bg: #4f70ad;
  --board-bg-deep: #405f9c;
  --header-bg: #c8d8f8;
  --footer-bg: #40c040;
  --orange-title: #ff8800;
  --orange-title-dark: #d67000;
  --green-btn: #40d040;
  --green-btn-hover: #32b832;
  --text-white: #ffffff;
  --text-dark: #111122;
  --text-muted: #26304a;
  --card-bg: rgba(255, 255, 255, 0.15);
  --card-border: #ffffff;
  --font-pixel: 'Silkscreen', 'Press Start 2P', monospace;
  --font-sans: 'Outfit', 'Inter', system-ui, sans-serif;
  --transition: 0.1s ease;
}

/* ═══ BLEACH PIXEL SWORD CURSOR ═══ */
html, body {
  cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='%23ffffff' d='M0 0h2v2H0zM1 1h2v2H1zM2 2h2v2H2zM3 3h2v2H3zM4 4h2v2H4zM5 5h2v2H5zM6 6h2v2H6zM7 7h2v2H7zM8 8h2v2H8zM9 9h2v2H9zM10 10h2v2h-2z'/%3E%3Cpath fill='%2300f0ff' d='M11 10h3v3h-3z'/%3E%3Cpath fill='%23ff2d55' d='M13 12h2v2h-2zM15 14h2v2h-2zM17 16h2v2h-2zM19 18h2v2h-2z'/%3E%3Cpath fill='%23000000' d='M0 2h1v1H0zM2 0h1v1H2zM2 4h1v1H4z'/%3E%3C/svg%3E") 0 0, auto;
}

button, a, label, input, .nav-btn, .res-pixel-card, .gallery-item, .arcade-card-btn, .btn-back-home {
  cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='%2300f0ff' d='M0 0h2v2H0zM1 1h2v2H1zM2 2h2v2H2zM3 3h2v2H3zM4 4h2v2H4zM5 5h2v2H5zM6 6h2v2H6zM7 7h2v2H7zM8 8h2v2H8zM9 9h2v2H9zM10 10h2v2h-2z'/%3E%3Cpath fill='%23ffffff' d='M11 10h3v3h-3z'/%3E%3Cpath fill='%23ff2d55' d='M13 12h2v2h-2zM15 14h2v2h-2zM17 16h2v2h-2zM19 18h2v2h-2z'/%3E%3Cpath fill='%23000000' d='M0 2h1v1H0zM2 0h1v1H2z'/%3E%3C/svg%3E") 0 0, pointer !important;
}

/* ═══ RESET & BASE ═══ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

::selection {
  background: var(--orange-title);
  color: #ffffff;
}

html {
  scroll-behavior: smooth;
  background: var(--sky-bg);
}

body {
  font-family: var(--font-sans);
  background: var(--sky-bg);
  color: var(--text-white);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
  image-rendering: pixelated;
}

/* ═══════════════ 8-BIT HEADER BAR ═══════════════ */
.arcade-header {
  height: 54px;
  background: var(--header-bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 1.2rem;
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.15);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.sidebar-toggle-input { display: none; }

.sidebar-handle {
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  color: #111;
  background: #ffffff;
  padding: 0.3rem 0.6rem;
  border: 2px solid #000;
  box-shadow: 2px 2px 0 #000;
  user-select: none;
}

.sidebar-handle:hover {
  background: var(--orange-title);
  color: #fff;
}

.logo-text {
  font-family: var(--font-pixel);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--orange-title);
  text-shadow: 2px 2px 0 #000000;
  letter-spacing: 1px;
  line-height: 1;
}

.header-nav {
  display: flex;
  gap: 0.25rem;
  justify-content: center;
  flex: 1;
}

.nav-btn {
  font-family: var(--font-pixel);
  font-size: 0.76rem;
  color: #1b438d;
  background: none;
  border: none;
  padding: 0.4rem 0.62rem;
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-btn:hover {
  color: var(--orange-title);
}

.nav-btn.active {
  color: var(--orange-title);
  border-bottom: 3px solid var(--orange-title);
}

.btn-buy-pass {
  font-family: var(--font-pixel);
  font-size: 0.76rem;
  color: #ffffff;
  background: var(--green-btn);
  padding: 0.5rem 1rem;
  text-decoration: none;
  border: 2px solid #000000;
  box-shadow: 2px 2px 0 #000000;
  font-weight: 700;
  letter-spacing: 1px;
  transition: all var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-buy-pass:hover {
  background: var(--green-btn-hover);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 #000000;
}

/* ═══════════════ SIDEBAR MENU ═══════════════ */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 270px;
  background: #1a1a2e;
  border-right: 3px solid #000;
  padding: 1.5rem 0 1rem;
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  transform: translateX(-100%);
  transition: transform 0.2s ease-out;
  z-index: 150;
  display: flex;
  flex-direction: column;
}

.sidebar-toggle-input:checked ~ .sidebar {
  transform: translateX(0);
}

.sidebar-toggle-input:checked ~ .sidebar-handle {
  background: var(--orange-title);
  color: #fff;
}

.sidebar-header {
  padding: 1rem 1.2rem;
  border-bottom: 2px dashed #333;
}

.sidebar-brand {
  display: block;
  color: var(--orange-title);
  font-size: 1rem;
}

.sidebar-version {
  color: #aeb6c8;
  font-size: 0.64rem;
}

.sidebar-nav { flex: 1; padding: 1rem 0; overflow-y: auto; }
.sidebar-section { padding: 0.5rem 1.2rem; }

.sidebar-section-title {
  color: #aeb6c8;
  font-size: 0.66rem;
  display: block;
  margin-bottom: 0.5rem;
}

.sidebar-divider {
  height: 2px;
  background: #333;
  margin: 0.5rem 1.2rem;
}

.sidebar-nav ul { list-style: none; }
.sidebar-nav li { padding: 0.25rem 0; }

.sidebar-nav a, .sidebar-nav button {
  color: #f0f4ff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.6rem;
  border: 1px solid transparent;
  font-family: var(--font-pixel);
  font-size: 0.76rem;
  background: none;
  width: 100%;
  text-align: left;
}

.sidebar-nav a:hover, .sidebar-nav button:hover, .sidebar-nav a.active {
  color: var(--green-btn);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--green-btn);
}

.sidebar-footer {
  padding: 1rem 1.2rem;
  border-top: 2px dashed #333;
  font-size: 0.65rem;
  color: var(--orange-title);
}

.blink { animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ═══════════════ MAIN ARCADE STAGE ═══════════════ */
.arcade-stage {
  flex: 1;
  max-width: 1120px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem 13rem;
  text-align: center;
}

.stage-title {
  font-family: var(--font-pixel);
  font-size: 2.35rem;
  font-weight: 700;
  color: var(--orange-title);
  text-shadow: 3px 3px 0 #000000;
  letter-spacing: 2px;
  line-height: 1.2;
  text-transform: uppercase;
  background: transparent;
}

.stage-subtitle {
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  font-weight: 700;
  color: #ffffff;
  text-shadow: 1px 1px 0 #000000;
  margin-top: 0.55rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.pixel-starburst {
  font-family: var(--font-pixel);
  color: var(--orange-title);
  font-size: 1.2rem;
  margin: 1.5rem 0;
  text-shadow: 2px 2px 0 #000000;
}

/* ═══ TAB TOP BAR / BACK BUTTON ═══ */
.tab-top-bar {
  display: flex;
  justify-content: flex-start;
  margin-bottom: 1rem;
}

.btn-back-home {
  font-family: var(--font-pixel);
  font-size: 0.72rem;
  color: #000000;
  background: #ffffff;
  padding: 0.5rem 1rem;
  border: 2px solid #000000;
  box-shadow: 3px 3px 0 #000000;
  transition: all var(--transition);
}

.btn-back-home:hover {
  background: var(--orange-title);
  color: #ffffff;
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 #000000;
}

/* ═══ TAB CONTENT ═══ */
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ═══ LINEUP / HOME LAYOUT ═══ */
.lineup-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lineup-tier { width: 100%; }

.welcome-sub {
  font-size: 1.08rem;
  color: #ffffff;
  font-weight: 700;
  text-shadow: 1px 2px 0 #000;
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.6;
  background: transparent;
}

.quick-action-row {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.arcade-card-btn {
  font-family: var(--font-pixel);
  font-size: 0.82rem;
  color: #000000;
  background: #ffffff;
  padding: 0.75rem 1.2rem;
  border: 2px solid #000000;
  box-shadow: 3px 3px 0 #000000;
  text-decoration: none;
  transition: all var(--transition);
}

.arcade-card-btn:hover {
  background: var(--orange-title);
  color: #ffffff;
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 #000000;
}

.arcade-card-btn.highlight {
  background: var(--green-btn);
  color: #ffffff;
}

.arcade-card-btn.feedback-link {
  background: #ffb800;
  color: #000000;
}

.arcade-card-btn.highlight:hover {
  background: var(--green-btn-hover);
}

/* ═══ ABOUT CARD ═══ */
.about-card-box {
  background: rgba(0, 0, 0, 0.25);
  border: 2px solid #ffffff;
  padding: 1.8rem;
  border-radius: 4px;
  max-width: 640px;
  margin: 0 auto;
  text-align: left;
}

.about-text {
  font-size: 1.05rem;
  color: #ffffff;
  font-weight: 600;
  text-shadow: 1px 1px 0 #000;
  line-height: 1.6;
  margin-bottom: 1.2rem;
}

.about-stats-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border-top: 2px dashed rgba(255, 255, 255, 0.3);
  padding-top: 1rem;
}

.stat-row { font-size: 0.95rem; }
.s-key { color: #e5edff; font-weight: 800; }
.s-val { color: #ffffff; }
.green-text { color: var(--green-btn); font-weight: 700; }
.pixel-link { color: #ffffff; text-decoration: underline; }

/* ═══════════════ RESOURCES TAB ═══════════════ */
.resource-block {
  text-align: left;
  max-width: 700px;
  margin: 0 auto;
}

.res-block-title {
  font-family: var(--font-pixel);
  font-size: 0.9rem;
  color: var(--orange-title);
  text-shadow: 2px 2px 0 #000;
  margin-bottom: 0.8rem;
}

.res-grid {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.res-pixel-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1rem;
  background: rgba(0, 0, 0, 0.3);
  border: 2px solid #ffffff;
  color: #ffffff;
  text-decoration: none;
  box-shadow: 3px 3px 0 #000000;
  transition: all var(--transition);
}

.res-pixel-card:hover {
  background: #ffffff;
  color: #000000;
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 #000000;
}

.card-icon { font-size: 1.3rem; flex-shrink: 0; }
.card-text { flex: 1; }

.c-title {
  display: block;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.05rem;
}

.c-sub {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  opacity: 1;
}

.c-btn {
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  padding: 0.3rem 0.6rem;
  background: var(--green-btn);
  color: #fff;
  border: 1px solid #000;
  flex-shrink: 0;
}

.res-pixel-card:hover .c-btn {
  background: #000000;
  color: #ffffff;
}

/* ═══ SENIORS CONNECT TAB ═══ */
.senior-board-hero {
  max-width: 1040px;
  margin: 0 auto 1rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 1rem;
  align-items: stretch;
  text-align: left;
}

.board-copy,
.feedback-card {
  background: rgba(17, 25, 50, 0.42);
  border: 2px solid #ffffff;
  box-shadow: 4px 4px 0 #000000;
  padding: 1rem;
}

.board-kicker,
.feedback-card-title {
  display: block;
  font-family: var(--font-pixel);
  font-size: 0.62rem;
  color: #ffb800;
  text-shadow: 1px 1px 0 #000000;
  margin-bottom: 0.5rem;
}

.board-copy h2 {
  color: #ffffff;
  font-size: 1.45rem;
  line-height: 1.05;
  text-shadow: 2px 2px 0 #000000;
}

.board-copy p,
.feedback-card-copy {
  display: block;
  margin-top: 0.55rem;
  color: #eaf1ff;
  font-weight: 750;
  line-height: 1.45;
}

.feedback-card {
  color: #ffffff;
  text-decoration: none;
  background:
    linear-gradient(135deg, rgba(64, 208, 64, 0.82), rgba(255, 184, 0, 0.86)),
    #1a1a2e;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.feedback-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 #000000;
}

.feedback-card-title {
  color: #000000;
  text-shadow: none;
}

.feedback-card-copy {
  color: #111122;
}

.feedback-card-btn {
  display: inline-block;
  margin-top: 0.8rem;
  font-family: var(--font-pixel);
  font-size: 0.62rem;
  color: #000000;
  background: #ffffff;
  border: 2px solid #000000;
  box-shadow: 2px 2px 0 #000000;
  padding: 0.42rem 0.6rem;
}

.senior-filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1040px;
  margin: 0 auto 0.7rem;
}

.senior-program-chip {
  font-family: var(--font-pixel);
  font-size: 0.62rem;
  color: #000000;
  background: #ffffff;
  border: 2px solid #000000;
  box-shadow: 2px 2px 0 #000000;
  padding: 0.42rem 0.65rem;
}

.senior-year-switch {
  display: flex;
  gap: 0.45rem;
}

.senior-year-btn {
  font-family: var(--font-pixel);
  font-size: 0.66rem;
  color: #000000;
  background: #ffffff;
  border: 2px solid #000000;
  box-shadow: 2px 2px 0 #000000;
  padding: 0.5rem 0.75rem;
  transition: all var(--transition);
}

.senior-year-btn.active,
.senior-year-btn:hover {
  color: #ffffff;
  background: var(--orange-title);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 #000000;
}

.senior-toolbar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.7rem;
  align-items: center;
  max-width: 1040px;
  margin: 0 auto 1rem;
}

.senior-search {
  width: 100%;
  min-width: 0;
  font-family: var(--font-pixel);
  font-size: 0.68rem;
  color: #000000;
  background: #ffffff;
  border: 2px solid #000000;
  box-shadow: 2px 2px 0 #000000;
  padding: 0.62rem 0.75rem;
  outline: none;
}

.senior-search:focus {
  border-color: var(--orange-title);
  box-shadow: 3px 3px 0 #000000;
}

.senior-count {
  font-family: var(--font-pixel);
  font-size: 0.62rem;
  color: #ffffff;
  background: rgba(0, 0, 0, 0.36);
  border: 2px solid #ffffff;
  box-shadow: 2px 2px 0 #000000;
  padding: 0.62rem 0.75rem;
  white-space: nowrap;
}

.senior-quick-filters {
  max-width: 1040px;
  margin: 0 auto 1rem;
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
  justify-content: center;
}

.senior-quick-btn {
  font-family: var(--font-pixel);
  font-size: 0.58rem;
  color: #000000;
  background: #ffffff;
  border: 2px solid #000000;
  box-shadow: 2px 2px 0 #000000;
  padding: 0.42rem 0.58rem;
  transition: all var(--transition);
}

.senior-quick-btn.active,
.senior-quick-btn:hover {
  color: #ffffff;
  background: var(--green-btn);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 #000000;
}

.seniors-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  max-width: 1040px;
  margin: 0 auto;
  text-align: left;
}

.senior-card.hidden {
  display: none;
}

.senior-card.filtered-out {
  display: none;
}

.senior-card {
  position: relative;
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 0.75rem;
  align-items: center;
  padding: 2.8rem 0.9rem 0.9rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(0, 0, 0, 0.16)),
    var(--board-bg);
  border: 2px solid #ffffff;
  box-shadow: 3px 3px 0 #000000;
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.senior-card:hover {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(0, 0, 0, 0.18)),
    var(--board-bg-deep);
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 #000000;
}

.senior-card.revealed {
  animation: senior-pop 0.24s ease both;
}

@keyframes senior-pop {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.senior-card.no-sgpa {
  padding-top: 1rem;
}

.senior-top {
  position: absolute;
  top: 0.65rem;
  left: 1rem;
  right: 1rem;
  display: flex;
  justify-content: flex-end;
}

.senior-chip {
  font-family: var(--font-pixel);
  font-size: 0.56rem;
  color: #000000;
  background: #ffb800;
  border: 2px solid #000000;
  padding: 0.36rem 0.56rem;
  box-shadow: 2px 2px 0 #000000;
  white-space: nowrap;
  line-height: 1;
}

.senior-photo {
  width: 88px;
  aspect-ratio: 1;
  display: block;
  font-family: var(--font-pixel);
  font-size: 1.2rem;
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(255, 136, 0, 0.95), rgba(64, 208, 64, 0.8)),
    #1a1a2e;
  border: 2px solid #000000;
  box-shadow: 3px 3px 0 #000000;
  object-fit: cover;
  overflow: hidden;
  align-self: start;
}

.senior-info h2 {
  font-family: var(--font-sans);
  font-size: 1.08rem;
  font-weight: 900;
  color: #ffffff;
  text-shadow: 1px 1px 0 #000000;
  line-height: 1.1;
}

.senior-info p {
  margin-top: 0.25rem;
  color: #ffefb0;
  font-size: 0.88rem;
  font-weight: 800;
  line-height: 1.35;
}

.senior-info p:empty {
  display: none;
}

.senior-info span {
  display: block;
  margin-top: 0.35rem;
  color: #ffffff;
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.senior-actions {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(104px, 1fr));
  gap: 0.4rem;
}

.senior-connect {
  width: 100%;
  font-family: var(--font-pixel);
  font-size: 0.62rem;
  color: #000000;
  background: #ffffff;
  border: 2px solid #000000;
  box-shadow: 2px 2px 0 #000000;
  padding: 0.45rem 0.35rem;
  text-decoration: none;
  transition: all var(--transition);
  text-align: center;
  white-space: nowrap;
}

.senior-connect:hover {
  background: var(--green-btn);
  color: #ffffff;
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 #000000;
}

.senior-instagram:hover {
  background: #d62976;
}

.senior-linkedin:hover {
  background: #0a66c2;
}

.senior-github:hover {
  background: #24292f;
}

/* ═══ HOLOGRAM GALLERY LAUNCHER ═══ */
.holo-launcher-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}

.holo-launch-btn {
  font-family: var(--font-pixel);
  font-size: 1rem;
  padding: 1.2rem 2.5rem;
  background: rgba(0, 100, 255, 0.12);
  color: #4da6ff;
  border: 2px solid rgba(77, 166, 255, 0.6);
  box-shadow: 0 0 30px rgba(77, 166, 255, 0.2), inset 0 0 20px rgba(77, 166, 255, 0.05);
  text-shadow: 0 0 10px rgba(77, 166, 255, 0.6);
  transition: all 0.2s ease;
  letter-spacing: 2px;
  animation: holo-pulse 2s ease-in-out infinite;
}

.holo-launch-btn:hover {
  background: rgba(0, 100, 255, 0.25);
  box-shadow: 0 0 50px rgba(77, 166, 255, 0.4), inset 0 0 30px rgba(77, 166, 255, 0.1);
  transform: scale(1.03);
}

@keyframes holo-pulse {
  0%, 100% { border-color: rgba(77, 166, 255, 0.6); }
  50% { border-color: rgba(77, 166, 255, 1); box-shadow: 0 0 40px rgba(77, 166, 255, 0.35), inset 0 0 25px rgba(77, 166, 255, 0.08); }
}

.holo-upload-launch-btn {
  font-family: var(--font-pixel);
  font-size: 0.76rem;
  padding: 0.5rem 1rem;
  background: rgba(77, 166, 255, 0.08);
  color: rgba(77, 166, 255, 0.7);
  border: 1px solid rgba(77, 166, 255, 0.3);
  transition: all 0.15s ease;
}

.holo-upload-launch-btn:hover {
  background: rgba(77, 166, 255, 0.18);
  color: #4da6ff;
}

/* ═══════════════ FULL-SCREEN HOLOGRAM OVERLAY ═══════════════ */
#holo-fullscreen {
  position: fixed;
  inset: 0;
  background: #f8f9fa; /* Light clean off-white background */
  z-index: 500;
  display: none;
  overflow: hidden;
}

#holo-fullscreen.active { display: block; }

#holo-fullscreen canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
  position: absolute;
  inset: 0;
}

#holo-hud {
  position: absolute;
  top: 26px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-dark);
  text-align: center;
  letter-spacing: 0.14em;
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  pointer-events: none;
  opacity: 1;
  text-shadow: 1px 1px 0 #ffffff;
  z-index: 10;
  white-space: nowrap;
}

.holo-hud-sub {
  font-size: 11px;
  opacity: 0.8;
  margin-top: 6px;
  letter-spacing: 0.08em;
}

#holo-hint {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  pointer-events: none;
  z-index: 10;
  text-shadow: 1px 1px 0 #ffffff;
}

#holo-controls {
  position: absolute;
  top: 24px;
  right: 28px;
  display: flex;
  gap: 10px;
  z-index: 10;
}

.holo-ctrl-btn {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: #1a1a2e;
  border: 1px solid #777788;
  padding: 8px 18px;
  border-radius: 20px;
  background: #ffffff;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.08);
  transition: all 0.15s ease;
}

.holo-ctrl-btn:hover {
  background: #1a1a2e;
  color: #ffffff;
  border-color: #1a1a2e;
  box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.15);
}

/* Integrated photo viewer */
#holo-photo-view {
  position: absolute;
  inset: 0;
  background: rgba(0, 3, 8, 0.88);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 15;
  backdrop-filter: blur(6px);
}

#holo-photo-view.show { display: flex; }

#holo-photo-view img {
  max-width: 80vw;
  max-height: 75vh;
  border-radius: 4px;
  box-shadow: 0 0 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.holo-photo-close {
  position: absolute;
  top: 28px;
  right: 34px;
  color: #ffffff;
  font-family: 'Courier New', monospace;
  font-size: 20px;
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  transition: all 0.15s ease;
}

.holo-photo-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.holo-photo-cap {
  position: absolute;
  bottom: 60px;
  color: #ffffff;
  font-family: 'Courier New', monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.85;
  text-shadow: 0 0 8px rgba(0, 0, 0, 0.8);
}

/* ═══════════════ MINIMIZED MARIO PLATFORMER GAME CONTAINER ═══════════════ */
.mario-bottom-bar-container {
  position: fixed;
  bottom: 42px;
  left: 0;
  width: 100vw;
  height: 175px;
  z-index: 25;
  pointer-events: auto;
  overflow: hidden;
  box-shadow: 0 -3px 0 #000000;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease-out;
}

body.game-collapsed .mario-bottom-bar-container {
  transform: translateY(calc(100% + 42px));
}

.game-toggle-btn {
  position: fixed;
  right: 1.2rem;
  bottom: 225px;
  z-index: 60;
  font-family: var(--font-pixel);
  font-size: 0.62rem;
  color: #000000;
  background: #ffffff;
  border: 2px solid #000000;
  box-shadow: 2px 2px 0 #000000;
  padding: 0.42rem 0.65rem;
  transition: all 0.25s ease-out;
}

.game-toggle-btn:hover {
  background: var(--orange-title);
  color: #ffffff;
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 #000000;
}

body.game-collapsed .game-toggle-btn {
  bottom: 54px;
}

.nes-hud-bar {
  height: 22px;
  background: #000000;
  color: #ffffff;
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  display: flex;
  justify-content: space-around;
  align-items: center;
  border-top: 2px solid #000000;
  letter-spacing: 1px;
  z-index: 40;
  position: relative;
  width: 100%;
}

/* PROMINENT STUDENT NAME REVEAL BANNER OVERLAY */
.student-reveal-banner {
  position: absolute;
  top: 25px;
  left: 50%;
  transform: translateX(-50%);
  background: #111122;
  border: 2px solid #ffb800;
  box-shadow: 2px 2px 0 #000000;
  padding: 0.3rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 50;
  max-width: 90%;
  pointer-events: none;
  white-space: normal;
}

.banner-icon { font-size: 0.9rem; }

.banner-text {
  font-family: var(--font-pixel);
  font-size: 0.68rem;
  color: #ffffff;
  text-shadow: 1px 1px 0 #000;
  letter-spacing: 0.5px;
}

/* GAME VIEWPORT CANVAS */
.three-mario-viewport {
  position: relative;
  width: 100%;
  flex: 1;
  background: #6cb4ee;
  overflow: hidden;
}

#mario-canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* ═══ GAME OVERLAY & INSTRUCTION BOX ═══ */
.game-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.75);
  z-index: 10;
  pointer-events: none;
  gap: 0.3rem;
  padding: 0.5rem;
}

.game-overlay.hidden {
  display: none;
}

.game-overlay-title {
  font-family: var(--font-pixel);
  font-size: 1.3rem;
  color: var(--orange-title);
  text-shadow: 2px 2px 0 #000;
  letter-spacing: 2px;
}

.game-overlay-text {
  font-family: var(--font-pixel);
  font-size: 0.72rem;
  color: #ffffff;
  text-shadow: 1px 1px 0 #000;
}

.ctrl-box {
  background: rgba(0, 0, 0, 0.6);
  border: 1px dashed rgba(255, 255, 255, 0.4);
  padding: 0.3rem 0.8rem;
  border-radius: 4px;
  margin: 0.2rem 0;
  text-align: left;
}

.ctrl-row {
  font-size: 0.62rem;
  color: #dddddd;
  line-height: 1.35;
}

.ctrl-row span { color: var(--orange-title); }
.ctrl-row strong { color: #ffffff; }

.game-overlay-sub {
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: #40d040;
  text-shadow: 1px 1px 0 #000;
  letter-spacing: 0.5px;
  animation: blink 1.2s step-end infinite;
}

/* ═══ MOBILE TOUCH CONTROLS ═══ */
.touch-controls {
  display: none;
  position: absolute;
  bottom: 6px;
  left: 0;
  right: 0;
  padding: 0 10px;
  justify-content: space-between;
  align-items: flex-end;
  z-index: 15;
  pointer-events: none;
}

.touch-dpad {
  display: flex;
  gap: 4px;
  pointer-events: auto;
}

.touch-btn {
  width: 38px;
  height: 38px;
  border: 2px solid rgba(255, 255, 255, 0.6);
  background: rgba(0, 0, 0, 0.5);
  color: #ffffff;
  font-family: var(--font-pixel);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
  pointer-events: auto;
}

.touch-btn:active {
  background: rgba(255, 136, 0, 0.6);
  border-color: var(--orange-title);
}

.touch-action {
  width: 52px;
  height: 38px;
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 700;
  background: rgba(64, 208, 64, 0.4);
  border-color: rgba(64, 208, 64, 0.8);
}

.touch-action:active {
  background: rgba(64, 208, 64, 0.7);
  border-color: var(--green-btn);
}

@media (pointer: coarse), (max-width: 768px) {
  .touch-controls { display: flex; }
}

/* ═══════════════ 8-BIT FOOTER BAR ═══════════════ */
.arcade-footer {
  height: 42px;
  background: var(--footer-bg);
  border-top: 3px solid #000000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.2rem;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 40;
}

.footer-left {
  display: flex;
  gap: 1.5rem;
}

.footer-link {
  font-family: var(--font-pixel);
  font-size: 0.76rem;
  color: #ffffff;
  text-decoration: none;
  text-shadow: 1px 1px 0 #000;
}

.footer-link:hover {
  color: #000000;
  text-shadow: none;
}

.social-pixel-btn {
  font-family: var(--font-pixel);
  font-size: 0.74rem;
  color: #000000;
  background: #ffffff;
  padding: 0.25rem 0.6rem;
  border: 2px solid #000;
  text-decoration: none;
}

/* ═══════════════ MODAL & LIGHTBOX ═══════════════ */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.85);
  z-index: 300;
  justify-content: center;
  align-items: center;
}

.modal-overlay.active { display: flex; }

.modal {
  background: #1a1a2e;
  border: 3px solid #000;
  box-shadow: 6px 6px 0 #000;
  width: 90%;
  max-width: 420px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 1rem;
  background: var(--header-bg);
  color: #000;
  font-family: var(--font-pixel);
  font-size: 0.8rem;
}

.modal-close {
  background: none;
  border: none;
  font-family: var(--font-pixel);
  font-size: 0.85rem;
}

.modal-body { padding: 1.2rem; }

.upload-zone {
  border: 2px dashed #fff;
  padding: 1.5rem;
  text-align: center;
  margin-bottom: 1rem;
}

.upload-placeholder p { font-size: 0.92rem; color: #fff; font-weight: 700; }
.upload-hint { font-size: 0.76rem !important; opacity: 0.9; }

.upload-preview { display: none; max-width: 100%; max-height: 180px; }
.upload-preview.visible { display: block; }

.upload-fields label {
  display: block;
  font-family: var(--font-pixel);
  font-size: 0.68rem;
  color: var(--orange-title);
  margin-top: 0.6rem;
  margin-bottom: 0.2rem;
}

.upload-fields input {
  width: 100%;
  padding: 0.5rem 0.6rem;
  background: #000;
  border: 2px solid #fff;
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  outline: none;
}

.submit-btn {
  width: 100%;
  padding: 0.6rem;
  margin-top: 1rem;
  background: var(--green-btn);
  color: #fff;
  border: 2px solid #000;
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  box-shadow: 3px 3px 0 #000;
}

.submit-btn:hover { background: var(--green-btn-hover); }

/* LIGHTBOX */
.lightbox-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 350;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.lightbox-overlay.active { display: flex; }

.lightbox-overlay img {
  max-width: 85%;
  max-height: 75vh;
  border: 3px solid #fff;
  box-shadow: 6px 6px 0 #000;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: #fff;
  color: #000;
  border: 2px solid #000;
  padding: 0.4rem 0.8rem;
  font-family: var(--font-pixel);
  font-size: 0.75rem;
}

.lightbox-caption {
  margin-top: 1rem;
  color: #fff;
  font-family: var(--font-pixel);
  font-size: 0.84rem;
}

/* ═══════════════ MOBILE FRIENDLY RESPONSIVE STYLES ═══════════════ */
@media (max-width: 768px) {
  .stage-title { font-size: 1.65rem; }
  .header-nav { display: none; }
  .arcade-stage { padding: 1.5rem 0.8rem 12rem; }
  .mario-bottom-bar-container { height: 155px; }
  .game-toggle-btn {
    right: 0.8rem;
    bottom: 205px;
    font-size: 0.58rem;
  }
  body.game-collapsed .game-toggle-btn { bottom: 54px; }
  .stage-subtitle { font-size: 0.72rem; }
  .welcome-sub,
  .about-text { font-size: 1rem; }
  .stat-row { font-size: 0.9rem; }
  .c-title { font-size: 1rem; }
  .c-sub { font-size: 0.84rem; }
  .senior-board-hero {
    grid-template-columns: 1fr;
  }
  .board-copy h2 {
    font-size: 1.22rem;
  }
  .seniors-grid { grid-template-columns: 1fr; }
  .senior-filter-bar {
    align-items: stretch;
    flex-direction: column;
  }
  .senior-toolbar { grid-template-columns: 1fr; }
  .senior-year-switch { width: 100%; }
  .senior-year-btn { flex: 1; }
  .senior-quick-filters {
    justify-content: flex-start;
  }
  .nes-hud-bar { font-size: 0.6rem; }
  .student-reveal-banner { padding: 0.3rem 0.6rem; font-size: 0.62rem; top: 23px; }
  .banner-text { font-size: 0.62rem; }
  .game-overlay-title { font-size: 1rem; }
  .game-overlay-text { font-size: 0.7rem; }
}

@media (max-width: 480px) {
  .arcade-header { padding: 0 0.8rem; }
  .stage-title { font-size: 1.32rem; }
  .btn-buy-pass { padding: 0.4rem 0.6rem; font-size: 0.62rem; }
  .logo-text { font-size: 0.88rem; }
  .quick-action-row { flex-direction: column; width: 100%; }
  .arcade-card-btn { width: 100%; text-align: center; }
  .board-copy,
  .feedback-card {
    padding: 0.85rem;
  }
  .senior-program-chip {
    text-align: center;
    line-height: 1.35;
  }
  .senior-quick-btn {
    flex: 1 1 calc(50% - 0.45rem);
  }
  .senior-card {
    grid-template-columns: 76px 1fr;
    padding: 3.25rem 0.8rem 0.9rem;
  }
  .senior-card.no-sgpa { padding-top: 0.9rem; }
  .senior-photo { width: 76px; font-size: 1rem; }
  .senior-info h2 { font-size: 1rem; }
  .senior-info p { font-size: 0.86rem; }
  .senior-info span { font-size: 0.8rem; }
  .senior-chip { font-size: 0.48rem; }
}