/* ─────────────────────────────────────────────
   VIT Question Papers — Stylesheet
   Dark space theme · Purple + Gold · Glass cards
───────────────────────────────────────────── */

/* ── Variables ── */
:root {
  --bg:          #04030f;
  --bg2:         #080618;
  --bg3:         #0d0b22;
  --primary:     #7c3aed;
  --primary-lt:  #a78bfa;
  --accent:      #f59e0b;
  --accent-lt:   #fcd34d;
  --cyan:        #06b6d4;
  --text:        #e2e8f0;
  --text-muted:  #64748b;
  --text-dim:    #94a3b8;
  --border:      rgba(124,58,237,.25);
  --glass:       rgba(13,11,34,.6);
  --glass-hover: rgba(13,11,34,.85);
  --card-mic:    #7c3aed;
  --card-mid:    #f59e0b;
  --font-head:   'Syne', sans-serif;
  --font-body:   'Inter', sans-serif;
  --font-mono:   'IBM Plex Mono', monospace;
  --ease:        cubic-bezier(.25,.46,.45,.94);
  --ease-out:    cubic-bezier(0,0,.2,1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-head);
  overflow-x: hidden;
  cursor: auto;
}
a { color: inherit; text-decoration: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
select { font-family: inherit; }
img { display: block; max-width: 100%; }

/* ── Custom Scrollbar ── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 10px; }

/* ── Canvas (Three.js hero bg) ── */
#hero-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ── Custom Cursor (removed) ── */

/* ── Preloader ── */
#preloader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.preloader-content { text-align: center; }
.preloader-logo {
  font-size: clamp(2.5rem, 8vw, 8rem);
  font-weight: 800;
  letter-spacing: -.04em;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 2rem;
  max-width: 90vw;
  white-space: nowrap;
}
.preloader-sub {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--text-muted);
  letter-spacing: .2em;
  text-transform: uppercase;
  margin-bottom: 2.5rem;
}
.preloader-bar {
  width: 220px;
  height: 2px;
  background: rgba(255,255,255,.08);
  border-radius: 10px;
  margin: 0 auto 1rem;
  overflow: hidden;
}
.preloader-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 10px;
  transition: width .05s linear;
}
.preloader-pct {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-muted);
  letter-spacing: .15em;
}

/* ── Navbar ── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.5rem 0;
  transition: background .4s var(--ease), padding .4s var(--ease), backdrop-filter .4s;
}
#navbar.scrolled {
  padding: .9rem 0;
  background: rgba(4,3,15,.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text);
}
.nav-logo > span { /* per-letter colors set inline */ }
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .08em;
  color: var(--text-dim);
  transition: color .25s;
  text-transform: uppercase;
}
.nav-links a:hover { color: var(--text); }
.nav-links .nav-cta {
  color: var(--primary-lt);
  border: 1px solid var(--border);
  padding: .45rem 1rem;
  border-radius: 6px;
  transition: background .25s, color .25s, border-color .25s;
}
.nav-links .nav-cta:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.nav-links .nav-admin {
  font-size: .7rem;
  color: var(--text-muted);
}
.nav-links .nav-admin:hover { color: var(--accent); }

/* ── Hero ── */
#hero {
  position: relative;
  z-index: 1;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: transparent;
}
.hero-content {
  max-width: 800px;
  padding: 0 2rem;
}
.hero-tag {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--primary-lt);
  margin-bottom: 1.5rem;
  opacity: 0;
}
.hero-title {
  font-size: clamp(3.5rem, 10vw, 7rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -.04em;
  margin-bottom: 1.5rem;
  overflow: hidden;
}
.hero-title .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(80px);
  margin-right: .3em;
}
.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--accent-lt));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
}
.hero-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
}
.hero-scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .6rem;
  opacity: 0;
}
.hero-scroll-hint span {
  font-family: var(--font-mono);
  font-size: .65rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(180deg, var(--primary-lt), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: .3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .8rem 2rem;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: .85rem;
  font-weight: 500;
  letter-spacing: .05em;
  transition: all .3s var(--ease);
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), #5b21b6);
  color: #fff;
  box-shadow: 0 0 30px rgba(124,58,237,.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 45px rgba(124,58,237,.5);
}
.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text-dim);
  background: rgba(255,255,255,.03);
}
.btn-ghost:hover {
  border-color: var(--primary-lt);
  color: var(--text);
  background: rgba(124,58,237,.08);
}
.btn-sm {
  padding: .5rem 1.1rem;
  font-size: .75rem;
}
.btn-accent {
  background: linear-gradient(135deg, var(--accent), #b45309);
  color: #fff;
  box-shadow: 0 0 20px rgba(245,158,11,.2);
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(245,158,11,.4);
}
.btn:disabled, .btn[disabled] {
  opacity: .4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Stats Bar ── */
#stats {
  position: relative;
  z-index: 1;
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 3.5rem 2rem;
}
.stats-inner {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}
.stat-num {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -.04em;
  background: linear-gradient(135deg, var(--primary-lt), var(--accent-lt));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: .35rem;
}

/* ── Section Header ── */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}
.section-tag {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--primary-lt);
  margin-bottom: .75rem;
}
.section-header h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -.04em;
  color: var(--text);
}

/* ── Papers Section ── */
#papers {
  position: relative;
  z-index: 1;
  background: var(--bg);
  padding: 6rem 2rem;
}
.papers-wrap {
  max-width: 1200px;
  margin: 0 auto;
}

/* ── Filters ── */
.filters {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
  padding: 1.25rem 1.5rem;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 14px;
  backdrop-filter: blur(10px);
}
.filter-group {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
}
.filter-btn {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  padding: .45rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: transparent;
  transition: all .25s var(--ease);
  cursor: pointer;
}
.filter-btn:hover { color: var(--text); border-color: var(--primary-lt); }
.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.filter-select {
  font-family: var(--font-mono);
  font-size: .75rem;
  padding: .45rem .9rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text-dim);
  outline: none;
  cursor: pointer;
  transition: border-color .25s;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .75rem center;
  padding-right: 2.2rem;
}
.filter-select:focus { border-color: var(--primary-lt); }

/* ── Papers Grid ── */
.papers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  justify-items: stretch;
}
.papers-empty {
  text-align: center;
  padding: 4rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: .85rem;
}

/* ── Paper Card ── */
.paper-card {
  position: relative;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem 1.2rem;
  backdrop-filter: blur(12px);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
}
.paper-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  border-radius: 3px 0 0 3px;
  transition: opacity .3s;
}
.paper-card.mic::before { background: var(--card-mic); }
.paper-card.mid::before { background: var(--card-mid); }
.paper-card:hover {
  transform: translateY(-5px) perspective(800px) rotateX(2deg);
  box-shadow: 0 20px 60px rgba(0,0,0,.4), 0 0 30px rgba(124,58,237,.1);
  border-color: rgba(124,58,237,.4);
}
.paper-card.mid:hover {
  border-color: rgba(245,158,11,.35);
  box-shadow: 0 20px 60px rgba(0,0,0,.4), 0 0 30px rgba(245,158,11,.1);
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: .65rem;
}
.card-course {
  font-family: var(--font-mono);
  font-size: .65rem;
  font-weight: 500;
  letter-spacing: .15em;
  text-transform: uppercase;
  padding: .3rem .7rem;
  border-radius: 4px;
}
.paper-card.mic .card-course { background: rgba(124,58,237,.2); color: var(--primary-lt); }
.paper-card.mid .card-course { background: rgba(245,158,11,.15); color: var(--accent-lt); }
.card-year {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-muted);
}
.card-subject {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--text);
  margin-bottom: .35rem;
  line-height: 1.3;
}
.card-code {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--text-muted);
  margin-bottom: .7rem;
}
.card-tags {
  display: flex;
  gap: .4rem;
  flex-wrap: wrap;
  margin-bottom: .85rem;
}
.card-tag {
  font-family: var(--font-mono);
  font-size: .65rem;
  letter-spacing: .08em;
  padding: .25rem .6rem;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,.08);
  color: var(--text-dim);
}
.card-tag.exam-cat1 { border-color: rgba(6,182,212,.3); color: var(--cyan); }
.card-tag.exam-cat2 { border-color: rgba(167,139,250,.3); color: var(--primary-lt); }
.card-tag.exam-fat  { border-color: rgba(245,158,11,.3); color: var(--accent-lt); }
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-semester {
  font-family: var(--font-mono);
  font-size: .65rem;
  color: var(--text-muted);
}
.card-coming {
  font-family: var(--font-mono);
  font-size: .65rem;
  color: var(--text-muted);
  font-style: italic;
}

/* ── CTA Strip ── */
#cta {
  position: relative;
  z-index: 1;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 7rem 2rem;
  text-align: center;
  overflow: hidden;
}
#cta::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 600px; height: 400px;
  background: radial-gradient(ellipse, rgba(124,58,237,.12) 0%, transparent 70%);
  pointer-events: none;
}
.cta-inner {
  position: relative;
  max-width: 680px;
  margin: 0 auto;
}
.cta-tag {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--accent-lt);
  margin-bottom: .75rem;
}
#cta h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -.04em;
  margin-bottom: 1rem;
}
#cta p {
  color: var(--text-dim);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

/* ── Footer ── */
footer {
  position: relative;
  z-index: 1;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 2rem;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
footer p {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--text-muted);
}
.footer-links {
  display: flex;
  gap: 2rem;
}
.footer-links a {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--text-muted);
  transition: color .25s;
}
.footer-links a:hover { color: var(--primary-lt); }

/* ════════════════════════════════════════════
   ADMIN PAGE
═══════════════════════════════════════════ */
#admin-canvas {
  position: fixed;
  inset: 0; z-index: 0;
  pointer-events: none;
}

/* ── Login Overlay ── */
#login-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4,3,15,.96);
  backdrop-filter: blur(14px);
}
.login-box {
  width: 100%;
  max-width: 400px;
  padding: 3rem 2.5rem;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  backdrop-filter: blur(20px);
  text-align: center;
  box-shadow: 0 40px 80px rgba(0,0,0,.5);
}
.login-logo {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -.04em;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: .4rem;
}
.login-box h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: .3rem;
}
.login-sub {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}
.form-field {
  margin-bottom: 1rem;
  text-align: left;
}
.form-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: .45rem;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: .75rem 1rem;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: .85rem;
  outline: none;
  transition: border-color .25s, box-shadow .25s;
  appearance: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary-lt);
  box-shadow: 0 0 0 3px rgba(124,58,237,.15);
}
.form-textarea { resize: vertical; min-height: 80px; }
.login-error {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: #f87171;
  margin-top: .75rem;
  min-height: 1.2em;
}

/* ── Admin Panel ── */
#admin-panel {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  background: var(--bg);
  display: none;
}
.admin-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(4,3,15,.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.admin-nav-logo {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -.02em;
}
.admin-nav-logo span { color: var(--accent); }
.admin-nav-actions { display: flex; gap: .75rem; align-items: center; }
.admin-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 2rem;
}
.admin-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2.5rem;
}
.admin-stat {
  padding: 1.25rem 1.5rem;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 12px;
  backdrop-filter: blur(10px);
}
.admin-stat .num { font-size: 2rem; font-weight: 800; letter-spacing: -.04em; }
.admin-stat .lbl {
  font-family: var(--font-mono);
  font-size: .65rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: .2rem;
}
.admin-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}
.admin-section-head h3 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -.02em;
}
.papers-table-wrap {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
}
.papers-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .82rem;
}
.papers-table th {
  font-family: var(--font-mono);
  font-size: .65rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: .9rem 1rem;
  text-align: left;
  background: rgba(255,255,255,.03);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.papers-table td {
  padding: .9rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,.04);
  color: var(--text-dim);
  vertical-align: middle;
  white-space: nowrap;
}
.papers-table tr:last-child td { border-bottom: none; }
.papers-table tr:hover td { background: rgba(255,255,255,.02); }
.papers-table .course-badge {
  font-family: var(--font-mono);
  font-size: .65rem;
  font-weight: 600;
  padding: .2rem .55rem;
  border-radius: 4px;
}
.papers-table .course-badge.mic { background: rgba(124,58,237,.2); color: var(--primary-lt); }
.papers-table .course-badge.mid { background: rgba(245,158,11,.15); color: var(--accent-lt); }
.papers-table .seed-badge {
  font-family: var(--font-mono);
  font-size: .6rem;
  padding: .15rem .5rem;
  border-radius: 4px;
  background: rgba(6,182,212,.1);
  color: var(--cyan);
}
.delete-btn {
  font-family: var(--font-mono);
  font-size: .65rem;
  letter-spacing: .06em;
  padding: .3rem .7rem;
  border-radius: 5px;
  border: 1px solid rgba(248,113,113,.3);
  color: #f87171;
  background: transparent;
  transition: all .25s;
  cursor: pointer;
}
.delete-btn:hover { background: rgba(248,113,113,.1); border-color: #f87171; }
.delete-btn:disabled { opacity: .3; pointer-events: none; }

/* ── Add Paper Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(4,3,15,.85);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: 0 40px 80px rgba(0,0,0,.5);
  transform: translateY(20px) scale(.97);
  transition: transform .3s var(--ease);
}
.modal-overlay.open .modal { transform: translateY(0) scale(1); }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}
.modal-header h3 { font-size: 1.2rem; font-weight: 700; letter-spacing: -.02em; }
.modal-close {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all .25s;
}
.modal-close:hover { border-color: var(--text-dim); color: var(--text); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }

/* ════════════════════════════════════════════
   SUBMIT PAGE
═══════════════════════════════════════════ */
#submit-page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem 3rem;
}
.submit-wrap {
  width: 100%;
  max-width: 580px;
}
.submit-header {
  text-align: center;
  margin-bottom: 2.5rem;
}
.submit-header .section-tag { margin-bottom: .6rem; }
.submit-header h1 {
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 800;
  letter-spacing: -.04em;
  margin-bottom: .75rem;
}
.submit-header p {
  color: var(--text-dim);
  line-height: 1.6;
  font-size: .95rem;
}
.submit-box {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  backdrop-filter: blur(16px);
}
.form-note {
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--text-muted);
  margin-top: .35rem;
}
.submit-success {
  text-align: center;
  padding: 2rem 0;
}
.success-icon {
  width: 64px; height: 64px;
  margin: 0 auto 1.25rem;
  background: rgba(52,211,153,.1);
  border: 1.5px solid rgba(52,211,153,.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
}
.submit-success h3 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: .5rem;
}
.submit-success p {
  color: var(--text-muted);
  font-size: .9rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .admin-stats { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .papers-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .filters { flex-direction: column; align-items: flex-start; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .admin-stats { grid-template-columns: 1fr; }
  .nav-links .nav-admin { display: none; }
  .hero-btns { flex-direction: column; align-items: center; }
  .papers-grid { grid-template-columns: 1fr; }
}

/* ── Utility ── */
.glow { text-shadow: 0 0 20px rgba(124,58,237,.5); }
.visually-hidden { position: absolute; clip: rect(0,0,0,0); height: 1px; width: 1px; }

/* ════════════════════════════════════════════
   BRIDGING — New class-based HTML structure
   (index.html, admin.html, submit.html)
═══════════════════════════════════════════ */

/* ── Utility ── */
.hidden { display: none !important; }
.mono { font-family: var(--font-mono); font-size: .8rem; }
.muted { color: var(--text-muted); }

/* ── Preloader (class-based) ── */
.preloader {
  position: fixed; inset: 0; background: var(--bg);
  z-index: 9000; display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.preloader-inner { text-align: center; }
.preloader-count { font-family: var(--font-mono); font-size: .75rem; color: var(--text-muted); }

/* ── Navbar (class-based) ── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1.5rem 0;
  transition: background .4s var(--ease), padding .4s var(--ease), backdrop-filter .4s;
}
.navbar.scrolled {
  padding: .9rem 0;
  background: rgba(4,3,15,.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

/* ── Hero (class-based) ── */
.hero {
  position: relative; z-index: 1;
  height: 100vh; min-height: 600px;
  display: flex; align-items: center; justify-content: center;
  text-align: center; background: transparent;
}
.hero canvas, #heroCanvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
}
.hero-overlay {
  position: relative; z-index: 2;
  width: 100%; height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
}
.hero-content { max-width: 820px; padding: 0 2rem; }
.hero-badge {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--primary-lt); margin-bottom: 1.5rem;
  padding: .4rem 1rem; border: 1px solid rgba(124,58,237,.3);
  border-radius: 100px; background: rgba(124,58,237,.08);
  opacity: 0;
}
.badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }
.hero-title {
  font-size: clamp(3.5rem, 10vw, 7rem);
  font-weight: 800; letter-spacing: -.04em;
  line-height: 1; margin-bottom: 1.5rem; overflow: hidden;
}
.hero-title .word {
  display: inline-block; opacity: 0;
  transform: translateY(80px); margin-right: .3em;
}
.hero-sub {
  font-size: 1.1rem; color: var(--text-dim); line-height: 1.7;
  margin-bottom: 2.5rem; max-width: 580px;
  margin-left: auto; margin-right: auto; opacity: 0;
}
.hero-ctas {
  display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; opacity: 0;
}
.hero-scroll-hint {
  position: absolute; bottom: 2.5rem; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center;
  gap: .6rem; opacity: 0;
}
.hero-scroll-hint span {
  font-family: var(--font-mono); font-size: .65rem;
  letter-spacing: .2em; text-transform: uppercase; color: var(--text-muted);
}

/* ── Stats Bar (class-based) ── */
.stats-bar {
  position: relative; z-index: 1; background: var(--bg);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 3.5rem 2rem;
}
.stats-inner {
  max-width: 900px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 1rem; align-items: center; text-align: center;
}
.stat-divider { width: 1px; height: 50px; background: var(--border); }

/* ── Papers Section (class-based) ── */
.papers-section {
  position: relative; z-index: 1; background: var(--bg); padding: 6rem 2rem;
  max-width: 1200px; margin: 0 auto;
}
.section-sub { color: var(--text-dim); font-size: .95rem; line-height: 1.6; margin-top: .75rem; }

/* ── Filter Bar ── */
.filter-bar {
  display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap;
  margin-bottom: 2.5rem; padding: 1.25rem 1.5rem;
  background: var(--glass); border: 1px solid var(--border);
  border-radius: 14px; backdrop-filter: blur(10px);
}
.filter-label {
  font-family: var(--font-mono); font-size: .65rem;
  letter-spacing: .15em; text-transform: uppercase; color: var(--text-muted);
  margin-right: .25rem;
}
.filter-pills { display: flex; gap: .4rem; flex-wrap: wrap; }
.pill {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .06em;
  padding: .4rem .9rem; border-radius: 6px;
  border: 1px solid var(--border); color: var(--text-muted);
  background: transparent; transition: all .25s var(--ease); cursor: pointer;
}
.pill:hover { color: var(--text); border-color: var(--primary-lt); }
.pill.active { background: var(--primary); border-color: var(--primary); color: #fff; }

.filter-input {
  font-family: var(--font-mono); font-size: .78rem;
  padding: .45rem 1rem; border-radius: 6px;
  border: 1px solid var(--border); background: var(--bg3);
  color: var(--text); outline: none; transition: border-color .25s;
  width: 100%; min-width: 200px;
}
.filter-input:focus { border-color: var(--primary-lt); }
.filter-search { flex: 1; display: flex; }

.results-meta {
  font-family: var(--font-mono); font-size: .72rem;
  color: var(--text-muted); margin-bottom: 1.5rem;
}

/* ── Empty State ── */
.empty-state {
  text-align: center; padding: 5rem 2rem; color: var(--text-muted);
}
.empty-icon { font-size: 3rem; margin-bottom: 1rem; }
.empty-state h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: .5rem; }
.empty-state p { font-size: .9rem; }
.empty-state a { color: var(--primary-lt); }

/* ── CTA Strip (class-based) ── */
.cta-strip {
  position: relative; z-index: 1; background: var(--bg2);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 6rem 2rem;
}
.cta-inner {
  max-width: 800px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 2rem; flex-wrap: wrap;
}
.cta-text h2 { font-size: clamp(1.6rem, 3vw, 2.5rem); font-weight: 800; margin-bottom: .5rem; }
.cta-text p { color: var(--text-dim); font-size: 1rem; line-height: 1.6; }

/* ── Footer (class-based) ── */
.footer {
  position: relative; z-index: 1; background: var(--bg);
  border-top: 1px solid var(--border); padding: 2rem;
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.footer-brand p { font-family: var(--font-mono); font-size: .72rem; color: var(--text-muted); }
.footer-note { font-family: var(--font-mono); font-size: .65rem; color: var(--text-muted); text-align: right; max-width: 300px; }
.footer-links { display: flex; gap: 2rem; }
.footer-links a { font-family: var(--font-mono); font-size: .72rem; color: var(--text-muted); transition: color .25s; }
.footer-links a:hover { color: var(--primary-lt); }

/* ── Buttons (btn-block, btn-gold, btn-danger, btn-lg) ── */
.btn-block { width: 100%; justify-content: center; }
.btn-lg { padding: 1rem 2.5rem; font-size: .9rem; }
.btn-gold { background: linear-gradient(135deg, var(--accent), #b45309); color: #fff; }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 0 30px rgba(245,158,11,.35); }
.btn-danger { border: 1px solid rgba(248,113,113,.3); color: #f87171; background: transparent; font-family: var(--font-mono); font-size: .7rem; padding: .3rem .75rem; border-radius: 5px; transition: all .25s; }
.btn-danger:hover { background: rgba(248,113,113,.1); border-color: #f87171; }

/* ── Admin Body ── */
.admin-body { cursor: auto; }
.admin-body button { cursor: pointer; }
.admin-body a { cursor: pointer; }

/* ── Admin Login Wall ── */
.admin-login-wall {
  position: fixed; inset: 0; z-index: 500;
  display: flex; align-items: center; justify-content: center;
  background: rgba(4,3,15,.97); backdrop-filter: blur(14px);
}
.login-glass {
  width: 100%; max-width: 420px; padding: 3rem 2.5rem;
  background: var(--glass); border: 1px solid var(--border);
  border-radius: 20px; backdrop-filter: blur(20px);
  text-align: center; box-shadow: 0 40px 80px rgba(0,0,0,.5);
}
.login-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.login-title { font-size: 1.8rem; font-weight: 800; margin-bottom: .4rem; }
.login-sub { font-family: var(--font-mono); font-size: .75rem; color: var(--text-muted); margin-bottom: 2rem; }
.login-form { text-align: left; }
.input-wrap { position: relative; margin-bottom: 1rem; }
.admin-input {
  width: 100%; padding: .8rem 3rem .8rem 1rem;
  background: rgba(255,255,255,.04); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-family: var(--font-mono);
  font-size: .9rem; outline: none; transition: border-color .25s;
}
.admin-input:focus { border-color: var(--primary-lt); }
.pass-toggle {
  position: absolute; right: .75rem; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); display: flex; align-items: center; cursor: pointer;
}
.login-error { color: #f87171; font-family: var(--font-mono); font-size: .75rem; margin-top: .6rem; }
.login-back { display: block; margin-top: 1.5rem; font-family: var(--font-mono); font-size: .75rem; color: var(--text-muted); }
.login-back:hover { color: var(--text); }

/* ── Admin Dashboard ── */
.admin-dashboard { min-height: 100vh; background: var(--bg); }
.admin-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(4,3,15,.9); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border); padding: 1rem 0;
}
.admin-badge {
  font-family: var(--font-mono); font-size: .6rem; letter-spacing: .1em;
  text-transform: uppercase; padding: .2rem .5rem;
  background: rgba(245,158,11,.15); color: var(--accent-lt);
  border-radius: 4px; margin-left: .5rem; vertical-align: middle;
}
.admin-nav-actions { display: flex; gap: .75rem; align-items: center; }
.admin-content { max-width: 1200px; margin: 0 auto; padding: 3rem 2rem; }
.admin-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 2.5rem; }
.admin-stat-card {
  padding: 1.5rem; background: var(--glass); border: 1px solid var(--border);
  border-radius: 14px; backdrop-filter: blur(10px);
}
.asc-val { font-size: 2.5rem; font-weight: 800; letter-spacing: -.04em; background: linear-gradient(135deg, var(--primary-lt), var(--accent-lt)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.asc-label { font-family: var(--font-mono); font-size: .65rem; letter-spacing: .15em; text-transform: uppercase; color: var(--text-muted); margin-top: .3rem; }
.admin-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; }
.admin-section-title { font-size: 1.2rem; font-weight: 700; letter-spacing: -.02em; }
.admin-table-wrap { overflow-x: auto; border-radius: 14px; border: 1px solid var(--border); }
.admin-table { width: 100%; border-collapse: collapse; font-size: .82rem; }
.admin-table th {
  font-family: var(--font-mono); font-size: .65rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--text-muted); padding: .9rem 1rem;
  text-align: left; background: rgba(255,255,255,.03);
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
.admin-table td { padding: .9rem 1rem; border-bottom: 1px solid rgba(255,255,255,.04); color: var(--text-dim); vertical-align: middle; }
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: rgba(255,255,255,.02); }
.table-link { color: var(--primary-lt); font-family: var(--font-mono); font-size: .8rem; }
.table-link:hover { color: var(--accent-lt); }
.exam-badge { font-family: var(--font-mono); font-size: .65rem; font-weight: 600; padding: .2rem .55rem; border-radius: 4px; }
.exam-cat1 { background: rgba(6,182,212,.15); color: var(--cyan); }
.exam-cat2 { background: rgba(167,139,250,.15); color: var(--primary-lt); }
.exam-fat  { background: rgba(245,158,11,.15); color: var(--accent-lt); }
.source-badge { font-family: var(--font-mono); font-size: .62rem; padding: .15rem .5rem; border-radius: 4px; }
.source-seed { background: rgba(6,182,212,.1); color: var(--cyan); }
.source-admin { background: rgba(124,58,237,.15); color: var(--primary-lt); }

/* ── Admin Modal ── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 600;
  background: rgba(4,3,15,.85); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  opacity: 1; pointer-events: all;
}
.modal-glass {
  width: 100%; max-width: 560px; max-height: 92vh; overflow-y: auto;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 20px; padding: 2.5rem;
  box-shadow: 0 40px 80px rgba(0,0,0,.5);
  transform: translateY(24px) scale(.97) ; opacity: .3;
  transition: transform .3s var(--ease), opacity .3s;
}
.modal-glass.modal-open { transform: translateY(0) scale(1); opacity: 1; }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 2rem; }
.modal-title { font-size: 1.2rem; font-weight: 700; letter-spacing: -.02em; }
.modal-close {
  width: 32px; height: 32px; border-radius: 50%;
  border: 1px solid var(--border); display: flex; align-items: center; justify-content: center;
  font-size: .9rem; color: var(--text-muted); cursor: pointer; transition: all .25s;
}
.modal-close:hover { border-color: var(--text-dim); color: var(--text); }
.modal-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.modal-form .form-group { margin-bottom: 1rem; }
.modal-form .form-label {
  display: block; font-family: var(--font-mono); font-size: .7rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--text-muted);
  margin-bottom: .45rem;
}
.modal-actions { display: flex; gap: .75rem; justify-content: flex-end; margin-top: 1.5rem; }

/* ── Submit Page ── */
.submit-hero {
  position: relative; height: 50vh; min-height: 400px;
  display: flex; align-items: flex-end; justify-content: center;
  padding-bottom: 4rem; overflow: hidden; background: transparent;
}
.submit-hero canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.submit-hero-content { position: relative; z-index: 2; text-align: center; padding: 0 2rem; }
.submit-title { font-size: clamp(2.5rem, 6vw, 4rem); font-weight: 800; letter-spacing: -.04em; margin-bottom: .75rem; }
.submit-sub { color: var(--text-dim); font-size: 1rem; max-width: 540px; line-height: 1.6; margin: 0 auto; }
.submit-section { position: relative; z-index: 1; background: var(--bg); padding: 4rem 2rem 6rem; }
.submit-wrap { max-width: 640px; margin: 0 auto; }
.submit-card {
  background: var(--glass); border: 1px solid var(--border);
  border-radius: 20px; padding: 2.5rem; backdrop-filter: blur(16px);
  margin-bottom: 2rem;
}
.submit-card-header { margin-bottom: 2rem; }
.submit-card-title { font-size: 1.3rem; font-weight: 700; letter-spacing: -.02em; margin-bottom: .35rem; }
.submit-card-sub { font-family: var(--font-mono); font-size: .72rem; color: var(--text-muted); }
.form-group { margin-bottom: 1.1rem; }
.form-label { display: block; font-family: var(--font-mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: .4rem; }
.form-hint { font-family: var(--font-mono); font-size: .68rem; color: var(--text-muted); display: block; margin-top: .35rem; }
.form-textarea { resize: vertical; min-height: 80px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.form-error { font-family: var(--font-mono); font-size: .75rem; color: #f87171; margin-bottom: 1rem; }
.input-error { border-color: rgba(248,113,113,.5) !important; box-shadow: 0 0 0 3px rgba(248,113,113,.1) !important; }
.btn-spinner { display: inline; }
.submit-success { text-align: center; padding: 2rem 0; }
.success-icon {
  width: 72px; height: 72px; margin: 0 auto 1.25rem;
  background: rgba(52,211,153,.1); border: 1.5px solid rgba(52,211,153,.4);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 2rem; transition: all .5s cubic-bezier(.34,1.56,.64,1);
}
.submit-success { position: relative; overflow: hidden; }
.submit-success h2 { font-size: 2rem; font-weight: 800; margin-bottom: .35rem; letter-spacing: -.03em; }
.success-sub { font-size: 1.05rem; color: var(--accent); font-weight: 600; margin-bottom: 1rem; }
.success-body { color: var(--text-dim); font-size: .95rem; line-height: 1.75; margin-bottom: 1.25rem; }
.success-divider { height: 1px; background: rgba(255,255,255,.07); margin: 1.25rem auto; width: 60%; }
.success-tagline { font-size: .8rem; color: var(--text-muted); letter-spacing: .04em; text-transform: uppercase; margin: 0; }
.success-confetti { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.success-confetti span {
  position: absolute; top: -10px;
  width: 8px; height: 8px; border-radius: 2px;
  opacity: 0; animation: confettiFall 2.2s ease-in forwards;
}
@keyframes confettiFall {
  0%   { opacity: 1; transform: translateY(0) rotate(0deg); }
  100% { opacity: 0; transform: translateY(380px) rotate(720deg); }
}
.submit-guidelines {
  background: rgba(124,58,237,.05); border: 1px solid rgba(124,58,237,.15);
  border-radius: 14px; padding: 1.5rem;
}
.submit-guidelines h3 { font-size: 1rem; font-weight: 700; margin-bottom: .85rem; }
.submit-guidelines ul { padding-left: 1.25rem; }
.submit-guidelines li { font-size: .88rem; color: var(--text-dim); line-height: 1.7; margin-bottom: .3rem; }
.nav-link.active { color: var(--primary-lt) !important; }

/* ── Responsive Supplements ── */
@media(max-width:900px){
  .stats-inner { grid-template-columns: 1fr 1fr; gap: 1.25rem; }
  .stat-divider { display: none; }
  .admin-stats { grid-template-columns: 1fr 1fr; }
  .modal-form .form-row { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; text-align: center; }
}
@media(max-width:640px){
  .filter-bar { flex-direction: column; align-items: flex-start; }
  .stats-inner { grid-template-columns: 1fr 1fr; }
  .admin-stats { grid-template-columns: 1fr; }
  .papers-section { padding: 4rem 1rem; }
  .submit-card { padding: 1.5rem; }
}

/* ── Sign-In Modal ── */
.signin-modal { max-width: 420px; transform: none; opacity: 1; }
.signin-sub { font-family: var(--font-mono); font-size: .78rem; color: var(--text-muted); margin-bottom: 1.5rem; }
.admin-hint-box {
  display: flex; align-items: center; gap: .5rem; flex-wrap: wrap;
  padding: .65rem 1rem; border-radius: 8px; margin-bottom: 1rem;
  background: rgba(245,158,11,.06); border: 1px solid rgba(245,158,11,.2);
  font-family: var(--font-mono); font-size: .72rem;
}
.admin-hint-label { color: var(--accent-lt); font-weight: 600; margin-right: .25rem; }
.admin-hint-email { color: var(--text-dim); }
.admin-hint-sep { color: var(--text-muted); }
.admin-hint-pass { color: var(--primary-lt); letter-spacing: .05em; }
.signin-error { font-family: var(--font-mono); font-size: .72rem; color: #f87171; margin-bottom: .75rem; }
.signin-footer { font-family: var(--font-mono); font-size: .65rem; color: var(--text-muted); margin-top: 1.25rem; text-align: center; }
.signin-form .form-group { margin-bottom: 1rem; }

/* ── Admin Panel Modal (inline on index) ── */
.admin-modal-panel { max-width: 900px; width: 95vw; max-height: 88vh; overflow-y: auto; }

/* ── Upload Zone ── */
.upload-zone {
  border: 2px dashed var(--border); border-radius: 12px;
  padding: 2.5rem 1.5rem; text-align: center; cursor: pointer;
  transition: border-color .25s, background .25s; background: rgba(124,58,237,.02);
  margin-bottom: .75rem;
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--primary-lt); background: rgba(124,58,237,.06);
}
.upload-zone-icon { font-size: 2rem; margin-bottom: .5rem; }
.upload-zone-title { font-size: .95rem; font-weight: 600; margin-bottom: .25rem; }
.upload-zone-sub { font-family: var(--font-mono); font-size: .72rem; color: var(--text-muted); }
.file-preview {
  display: flex; align-items: center; gap: .75rem;
  padding: .75rem 1rem; border-radius: 8px; margin-bottom: .75rem;
  background: rgba(52,211,153,.06); border: 1px solid rgba(52,211,153,.2);
  font-family: var(--font-mono); font-size: .78rem; color: var(--text-dim);
}
.file-preview-icon { font-size: 1.25rem; }
.file-preview-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-preview-size { color: var(--text-muted); font-size: .68rem; margin-left: auto; }
.file-remove { color: #f87171; cursor: pointer; font-size: .8rem; padding: .1rem .4rem; border-radius: 4px; transition: background .2s; }
.file-remove:hover { background: rgba(248,113,113,.12); }
.upload-or-divider {
  display: flex; align-items: center; gap: .75rem;
  font-family: var(--font-mono); font-size: .7rem;
  color: var(--text-muted); margin: 1rem 0;
}
.upload-or-divider::before, .upload-or-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}

/* ── OCR Scan Queue (submit page) ─────────────── */
.scan-queue { display: flex; flex-direction: column; gap: .5rem; margin-top: .75rem; }
.scan-item {
  display: flex; align-items: center; gap: .75rem;
  padding: .65rem .9rem; border-radius: 8px;
  border: 1px solid var(--border); background: var(--card-bg);
  font-size: .85rem; transition: border-color .25s, background .25s;
}
.scan-item-thumb { width: 44px; height: 44px; object-fit: cover; border-radius: 5px; flex-shrink: 0; }
.scan-item-info  { flex: 1; min-width: 0; }
.scan-item-name  { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.scan-item-status { font-size: .75rem; color: var(--text-muted); margin-top: .15rem; }
.scan-item-icon  { font-size: 1.1rem; flex-shrink: 0; }
.scan-item.scanning { border-color: #7c3aed; animation: scan-pulse 1.4s ease-in-out infinite; }
.scan-item.valid    { border-color: #10b981; background: rgba(16,185,129,.06); }
.scan-item.invalid  { border-color: var(--border); background: var(--glass); }
@keyframes scan-pulse { 0%,100% { opacity:1; } 50% { opacity:.6; } }

.scan-overall {
  padding: .7rem 1rem; border-radius: 8px;
  font-size: .85rem; font-weight: 600; margin-top: .75rem;
}
.scan-overall.ok   { background: rgba(16,185,129,.12); color: #10b981; }
.scan-overall.fail { background: rgba(239,68,68,.1);   color: #ef4444; }

/* ── Admin Pending Submissions ─────────────────── */
.pending-stat-card { border-color: #f59e0b !important; }
.pending-count-badge {
  display: inline-block; background: #ef4444; color: #fff;
  font-size: .65rem; font-weight: 700; padding: .1rem .45rem;
  border-radius: 99px; margin-left: .5rem; vertical-align: middle;
}
.admin-divider { border: none; border-top: 1px solid var(--border); margin: 2rem 0; }
.pending-empty { color: var(--text-muted); font-size: .9rem; padding: 1.25rem 0; }
.pending-cards { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem; }
.pending-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.2rem; transition: border-color .2s;
}
.pending-card:hover { border-color: #7c3aed; }
.pending-card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.pending-card-meta   { flex: 1; }
.pending-card-title  { font-weight: 600; font-size: 1rem; margin-bottom: .2rem; }
.pending-card-sub    { font-size: .78rem; color: var(--text-muted); margin-top: .1rem; }
.pending-card-actions { display: flex; gap: .5rem; flex-shrink: 0; align-items: flex-start; }
.pending-thumbs { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: .9rem; }
.pending-thumb-wrap { display: flex; flex-direction: column; align-items: center; gap: .25rem; }
.pending-thumb {
  width: 90px; height: 68px; object-fit: cover;
  border-radius: 6px; border: 2px solid var(--border);
  cursor: zoom-in; transition: border-color .2s;
}
.pending-thumb:hover   { border-color: #7c3aed; }
.pending-thumb.valid-thumb { border-color: #10b981; }
.pending-detected {
  font-size: .68rem; background: rgba(16,185,129,.12);
  border: 1px solid #10b981; color: #10b981;
  padding: .1rem .4rem; border-radius: 99px;
}
.btn-approve {
  background: #059669 !important; color: #fff !important;
  border: none !important; cursor: pointer;
}
.btn-approve:hover { background: #047857 !important; }

/* ─── Admin Mode — card overlays ─────────────── */
.paper-card.has-admin {
  position: relative;
}
.card-admin-bar {
  position: absolute;
  top: .5rem;
  right: .5rem;
  display: flex;
  gap: .3rem;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity .2s, transform .2s;
  z-index: 10;
}
.paper-card.has-admin:hover .card-admin-bar {
  opacity: 1;
  transform: translateY(0);
}
.card-admin-btn {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
}
.card-edit-btn {
  background: rgba(124,58,237,.85);
  color: #fff;
}
.card-edit-btn:hover { background: rgba(124,58,237,1); }
.card-del-btn {
  background: rgba(239,68,68,.85);
  color: #fff;
}
.card-del-btn:hover { background: rgba(239,68,68,1); }

/* ─── Admin FAB ───────────────────────────────── */
/* ─── Admin FAB wrapper ───────────────────────── */
.admin-fab-wrap {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 900;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: .6rem;
}
/* Row holding the two always-visible FABs */
.admin-fab-wrap > .admin-fab {
  /* each FAB sits in its own row, stacked */
}
.admin-fab {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.25rem;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-size: .88rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(124,58,237,.45);
  transition: transform .2s, box-shadow .2s;
}
.admin-fab:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(124,58,237,.6);
}

/* ─── FAB dropdown (above the button) ────────── */
.fab-dropdown {
  background: #0d0b1e;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px;
  padding: .4rem;
  min-width: 170px;
  box-shadow: 0 8px 32px rgba(0,0,0,.5);
}
.fab-dropdown-item {
  display: flex;
  align-items: center;
  gap: .55rem;
  width: 100%;
  padding: .55rem .75rem;
  border-radius: 8px;
  border: none;
  background: none;
  color: var(--text);
  font-size: .82rem;
  cursor: pointer;
  text-align: left;
  transition: background .15s;
}
.fab-dropdown-item:hover { background: rgba(255,255,255,.07); }

/* ─── Admin dropdown ──────────────────────────── */
.admin-dropdown {
  position: fixed;
  z-index: 1100;
  background: #0d0b1e;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px;
  padding: .4rem;
  min-width: 170px;
  box-shadow: 0 8px 32px rgba(0,0,0,.5);
}
.admin-dropdown-item {
  display: flex;
  align-items: center;
  gap: .55rem;
  width: 100%;
  padding: .55rem .75rem;
  border-radius: 8px;
  border: none;
  background: none;
  color: var(--text);
  font-size: .82rem;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s;
}
.admin-dropdown-item:hover { background: rgba(255,255,255,.07); }
.admin-pending-badge {
  margin-left: auto;
  background: #ef4444;
  color: #fff;
  font-size: .6rem;
  font-weight: 700;
  border-radius: 20px;
  padding: .1rem .4rem;
}

/* ─── Scan modal helpers (shared with admin.css) ── */
.scan-upload-zone {
  border: 2px dashed rgba(255,255,255,.12);
  border-radius: 14px;
  padding: 2rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
}
.scan-upload-zone:hover, .scan-upload-zone.drag-over {
  border-color: var(--primary);
  background: rgba(124,58,237,.07);
}
.scan-upload-icon { color: var(--text-muted); margin-bottom: .75rem; display: flex; justify-content: center; }
.scan-upload-label { font-size: .9rem; font-weight: 600; color: var(--text); margin-bottom: .3rem; }
.scan-upload-sub   { font-size: .75rem; color: var(--text-muted); }
.scan-status { display: flex; align-items: center; gap: .65rem; margin-top: 1rem; font-size: .85rem; color: var(--text-muted); }
.scan-spinner { width: 16px; height: 16px; border: 2px solid rgba(124,58,237,.3); border-top-color: var(--primary); border-radius: 50%; animation: spin .7s linear infinite; flex-shrink: 0; }
@keyframes spin { to { transform: rotate(360deg); } }
.detected-preview { margin-bottom: .9rem; }
.detected-thumb-row { display: flex; align-items: flex-start; gap: .9rem; }
.detected-thumb { width: 80px; height: 80px; object-fit: cover; border-radius: 10px; border: 2px solid rgba(124,58,237,.3); flex-shrink: 0; }
.detected-chips { display: flex; flex-wrap: wrap; gap: .4rem; align-content: flex-start; }
.chip { display: inline-flex; align-items: center; gap: .3rem; padding: .22rem .6rem; border-radius: 20px; font-size: .72rem; font-weight: 500; }
.chip-ok   { background: rgba(34,197,94,.12); color: #4ade80; border: 1px solid rgba(34,197,94,.25); }
.chip-warn { background: rgba(245,158,11,.1);  color: #fbbf24; border: 1px solid rgba(245,158,11,.2); }
.chip-label { font-size: .6rem; letter-spacing: .05em; text-transform: uppercase; opacity: .7; }
.form-section-label { font-size: .68rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted); padding-bottom: .3rem; border-bottom: 1px solid rgba(255,255,255,.06); margin-bottom: .1rem; }
.form-divider { height: 1px; background: rgba(255,255,255,.07); margin: .4rem 0; }
.scan-item-pdf { display: flex; align-items: center; justify-content: center; background: rgba(239,68,68,.12); color: #f87171; border: 1px solid rgba(239,68,68,.25); border-radius: 8px; font-size: .7rem; font-weight: 700; letter-spacing: .05em; flex-shrink: 0; }