/* ── THEME TOKENS ─────────────────────────────────────────────────────── */
:root {
  --bg:            #F7F4EB; /* Creamish Background */
  --bg-hero:       #f2ece0; /* Slightly darker cream for hero context */
  --card:          #FFFFFF; /* White cards */
  --card-hover:    #FAF7F0; /* Creamish card hover */
  --border:        rgba(0, 0, 0, 0.08);
  --border-hover:  rgba(201, 149, 47, 0.5);
  --fg:            #1A2433; /* Dark slate text */
  --fg-muted:      #5C6A7B;
  --fg-subtle:     #8E9DAF;
  --primary:       #C9952F;
  --primary-fg:    #0B1929;
  --primary-muted: rgba(201, 149, 47, 0.08);
  --accent:        #B5862A;
  --muted:         #EFE9DB; /* Muted creamish accent elements */
  --success:       #16a34a;
  --success-bg:    rgba(22, 163, 74, 0.06);
  --success-bd:    rgba(22, 163, 74, 0.2);
  --error:         #dc2626;
  --error-bg:      rgba(220, 38, 38, 0.06);
  --error-bd:      rgba(220, 38, 38, 0.2);
  --warning:       #d97706;
  --warning-bg:    rgba(217, 119, 6, 0.06);
  --warning-bd:    rgba(217, 119, 6, 0.2);
  --font-display:  'Fraunces', serif;
  --font-body:     'Inter', sans-serif;
  --nav-h:         64px;
  --r:             12px;
  --r-lg:          16px;
  --r-xl:          20px;
  --r-2xl: 24px;
  --shadow:        0 4px 20px rgba(0,0,0,0.06);
  --shadow-lg:     0 8px 32px rgba(0,0,0,0.08);
  
  /* Additional adjustment helpers specifically for light context layout elements */
  --nav-bg:        rgba(255, 255, 255, 0.85);
  --hero-title-color: #0B1929;
  --hero-desc-color:  #334155;
  --hero-badge-bg:    rgba(0, 0, 0, 0.05);
  --hero-badge-border: rgba(0, 0, 0, 0.08);
  --hero-badge-text:   #475569;
}

html[data-theme="dark"] {
  --bg:            #0B1929;
  --bg-hero:       #0C1A2E;
  --card:          #0F2241;
  --card-hover:    #132B50;
  --border:        rgba(255,255,255,0.075);
  --border-hover:  rgba(201,149,47,0.35);
  --fg:            #E2E8F0;
  --fg-muted:      #7E8FA3;
  --fg-subtle:     #4A5B6E;
  --primary:       #C9952F;
  --primary-fg:    #0B1929;
  --primary-muted: rgba(201,149,47,0.10);
  --accent:        #B5862A;
  --muted:         #162B47;
  --success:       #22c55e;
  --success-bg:    rgba(34,197,94,0.08);
  --success-bd:    rgba(34,197,94,0.2);
  --error:         #f87171;
  --error-bg:      rgba(248,113,113,0.08);
  --error-bd:      rgba(248,113,113,0.2);
  --warning:       #f59e0b;
  --warning-bg:    rgba(245,158,11,0.08);
  --warning-bd:    rgba(245,158,11,0.25);
  --shadow:        0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg:     0 8px 48px rgba(0,0,0,0.55);
  
  --nav-bg:        rgba(15,34,65,0.92);
  --hero-title-color: #ffffff;
  --hero-desc-color:  rgba(255,255,255,0.62);
  --hero-badge-bg:    rgba(255,255,255,0.08);
  --hero-badge-border: rgba(255,255,255,0.1);
  --hero-badge-text:   rgba(255,255,255,0.65);
}
/* ── BASE ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; }

/* ── PAGE TRANSITION ──────────────────────────────────────────────────── */
#app {
  transition: opacity 0.15s ease;
  min-height: calc(100vh - var(--nav-h));
  padding-top: var(--nav-h);
}
#app.fading { opacity: 0; }

/* ── NAVBAR ───────────────────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: var(--nav-bg) !important;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: opacity 0.2s;
  flex-shrink: 0;
}
.nav-logo:hover { opacity: 0.8; }

.nav-logo-icon {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(201,149,47,0.3);
}

.nav-logo-text { line-height: 1.2; }
.nav-logo-text .site-name { font-size: 14px; font-weight: 600; color: var(--fg); }
.nav-logo-text .site-sub  { font-size: 10px; color: var(--fg-muted); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: var(--r);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg);
  transition: background 0.15s, color 0.15s;
  display: flex; align-items: center; gap: 6px;
}
.nav-link:hover  { background: var(--muted); }
.nav-link.active { background: var(--primary); color: var(--primary-fg); }

.nav-auth { display: flex; align-items: center; gap: 8px; }

.nav-user {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  background: var(--muted);
  border-radius: var(--r);
}
.nav-user-avatar {
  width: 22px; height: 22px;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.nav-user-name { font-size: 14px; font-weight: 500; }
.admin-badge {
  font-size: 10px; font-weight: 700;
  background: var(--primary); color: var(--primary-fg);
  padding: 2px 6px; border-radius: 4px; letter-spacing: 0.04em;
}

.btn-ghost {
  padding: 8px 16px; border-radius: var(--r);
  font-size: 14px; font-weight: 500; color: var(--fg-muted);
  transition: color 0.15s, background 0.15s;
  display: flex; align-items: center; gap: 6px;
}
.btn-ghost:hover { color: var(--fg); background: var(--muted); }

.btn-primary {
  padding: 8px 18px; border-radius: var(--r);
  font-size: 14px; font-weight: 600;
  background: var(--primary); color: var(--primary-fg);
  transition: opacity 0.15s, transform 0.1s;
  display: inline-flex; align-items: center; gap: 6px;
}
.btn-primary:hover   { opacity: 0.9; }
.btn-primary:active  { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-outline {
  padding: 8px 18px; border-radius: var(--r);
  font-size: 14px; font-weight: 500;
  border: 1px solid var(--border);
  color: var(--fg);
  transition: background 0.15s, border-color 0.15s;
  display: inline-flex; align-items: center; gap: 6px;
}
.btn-outline:hover { background: var(--muted); border-color: var(--border-hover); }

/* Mobile nav toggle */
.nav-mobile-toggle {
  display: none;
  padding: 8px; border-radius: var(--r);
  color: var(--fg);
  transition: background 0.15s;
}
.nav-mobile-toggle:hover { background: var(--muted); }

.nav-mobile-menu {
  display: none;
  position: absolute;
  top: var(--nav-h); left: 0; right: 0;
  background: var(--nav-bg) !important;
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px 16px;
}
.nav-mobile-menu.open { display: block; }

.nav-mobile-link {
  display: flex; align-items: center; gap: 8px;
  width: 100%; text-align: left;
  padding: 10px 12px; border-radius: var(--r);
  font-size: 14px; font-weight: 500; color: var(--fg);
  transition: background 0.15s;
}
.nav-mobile-link:hover { background: var(--muted); }

.nav-mobile-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 8px 0;
}

.nav-mobile-auth { display: flex; gap: 8px; padding: 4px 0; }
.nav-mobile-auth .btn-outline,
.nav-mobile-auth .btn-primary { flex: 1; justify-content: center; }

/* ── LANDING PAGE ─────────────────────────────────────────────────────── */

/* Hero */
.hero {
  position: relative;
  background: var(--bg-hero);
  overflow: hidden;
}

.blob { position: absolute; border-radius: 50%; pointer-events: none; filter: blur(0); }
.blob-a {
  top: -96px; right: -64px;
  width: 440px; height: 440px;
  background: #B5862A; opacity: 0.17;
  filter: blur(110px);
  animation: blobDrift 14s ease-in-out infinite;
}
.blob-b {
  bottom: -112px; left: -80px;
  width: 380px; height: 380px;
  background: #B5862A; opacity: 0.13;
  filter: blur(95px);
  animation: blobDrift 14s ease-in-out infinite;
  animation-delay: 5s;
}
.blob-c {
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 280px; height: 280px;
  background: #1C4A8A; opacity: 0.25;
  filter: blur(80px);
  animation: blobDrift 14s ease-in-out infinite;
  animation-delay: 9s;
}

.hero-dotgrid {
  position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(circle, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 28px 28px;
}
.hero-vignette {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse at 60% 50%, transparent 35%, rgba(12,26,46,0.65) 100%);
}

.hero-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 24px 56px;
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.08em;
  background: var(--hero-badge-bg) !important;
  border-color: var(--hero-badge-border) !important;
  color: var(--hero-badge-text) !important;
  padding: 6px 12px; border-radius: 999px;
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--hero-title-color) !important;
  margin-bottom: 20px;
}
.hero-title em { font-style: normal; color: var(--primary) !important; }

.hero-desc {
  font-size: 17px; line-height: 1.65;
  color:  var(--hero-desc-color);
  max-width: 420px;
  margin-bottom: 32px;
}

.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }

.btn-hero-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 14px;
  font-size: 15px; font-weight: 700;
  background: var(--primary) !important;
  color: var(--primary-fg) !important;
  transition: box-shadow 0.2s, transform 0.1s, opacity 0.15s;
}
.btn-hero-primary:hover  { box-shadow: 0 8px 32px rgba(255,255,255,0.18); opacity: 0.95; }
.btn-hero-primary:active { transform: scale(0.98); }

.btn-hero-outline {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 14px;
  font-size: 15px; font-weight: 500;
  color: var(--fg) !important;
  border-color: var(--border) !important;
  backdrop-filter: blur(6px);
  transition: background 0.2s, border-color 0.2s, transform 0.1s;
}
.btn-hero-outline:hover  { background: rgba(255,255,255,0.09); border-color: rgba(255,255,255,0.45); }
.btn-hero-outline:active { transform: scale(0.98); }
.btn-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--r);
  color: var(--fg);
  transition: background 0.15s;
}
.btn-theme-toggle:hover {
  background: var(--muted);
}
.hero-image-placeholder {
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 4/3;
  border-radius: 24px;
  border-color: var(--border) !important;
  background: var(--card) !important;
  color: var(--fg-muted) !important;
  backdrop-filter: blur(4px);
  flex-direction: column; gap: 10px;
  font-size: 13px; font-weight: 500; letter-spacing: 0.04em;
}

/* Stats strip */
.stats-strip {
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.stats-inner {
  max-width: 1280px; margin: 0 auto;
  padding: 28px 24px;
  display: grid; grid-template-columns: repeat(4, 1fr);
  text-align: center;
}
.stat-item { padding: 8px 16px; }
.stat-value {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700; color: var(--primary);
  line-height: 1;
}
.stat-label {
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--fg-muted); margin-top: 6px;
}

/* Feature cards */
.features-section {
  max-width: 1280px; margin: 0 auto;
  padding: 80px 24px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700; color: var(--fg);
  text-align: center; margin-bottom: 12px;
}
.section-sub {
  text-align: center; color: var(--fg-muted);
  font-size: 17px; margin-bottom: 48px;
}

.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}

.feature-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-2xl);
  padding: 28px;
  transition: box-shadow 0.3s, border-color 0.3s, transform 0.3s;
  overflow: hidden;
}
.feature-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
  border-color: var(--border-hover);
  transform: translateY(-4px);
}
.feature-card:hover .feature-icon { background: var(--primary); color: var(--primary-fg); }
.feature-card:hover .feature-step { color: rgba(201,149,47,0.18); }

.feature-step {
  position: absolute; top: 20px; right: 20px;
  font-family: var(--font-display);
  font-size: 48px; font-weight: 700;
  color: var(--fg-subtle); line-height: 1;
  transition: color 0.3s;
  user-select: none;
}

.feature-icon {
  width: 48px; height: 48px;
  background: var(--primary-muted); color: var(--primary);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  transition: background 0.3s, color 0.3s;
}

.feature-title { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.feature-desc  { font-size: 14px; color: var(--fg-muted); line-height: 1.65; }

/* CTA band */
.cta-band {
  background: linear-gradient(135deg, var(--muted), rgba(22,43,71,0.5));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta-inner {
  max-width: 1280px; margin: 0 auto;
  padding: 64px 24px;
  text-align: center;
}
.cta-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  font-weight: 700; color: var(--fg);
  margin-bottom: 12px;
}
.cta-sub { color: var(--fg-muted); font-size: 16px; margin-bottom: 28px; max-width: 480px; margin-left: auto; margin-right: auto; }

.btn-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 16px 36px; border-radius: 14px;
  font-size: 15px; font-weight: 700;
  background: var(--primary); color: var(--primary-fg);
  transition: box-shadow 0.2s, transform 0.15s;
}
.btn-cta:hover  { box-shadow: 0 6px 24px rgba(201,149,47,0.35); transform: scale(1.04); }
.btn-cta:active { transform: scale(1.0); }

/* Footer */
.site-footer {
  background: var(--card);
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1280px; margin: 0 auto;
  padding: 28px 24px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}
.footer-logo { display: flex; align-items: center; gap: 8px; }
.footer-logo-icon {
  width: 24px; height: 24px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
}
.footer-logo span { font-size: 13px; font-weight: 600; }
.footer-disclaimer { font-size: 11px; color: var(--fg-muted); text-align: center; flex: 1; }
.footer-links { display: flex; gap: 20px; }
.footer-link {
  font-size: 12px; color: var(--fg-muted);
  transition: color 0.15s; cursor: pointer;
}
.footer-link:hover { color: var(--fg); }

/* ── INNER PAGES (shared container) ─────────────────────────────────── */
.page-container {
  max-width: 1280px; margin: 0 auto;
  padding: 40px 24px;
}
.page-container.narrow {
  max-width: 720px;
}

.page-header { margin-bottom: 32px; }
.page-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700; color: var(--fg);
  margin-bottom: 6px;
}
.page-subtitle { font-size: 15px; color: var(--fg-muted); }

/* ── SEARCH BAR ──────────────────────────────────────────────────────── */
.search-wrap { position: relative; margin-bottom: 28px; }
.search-wrap svg {
  position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  color: var(--fg-muted); pointer-events: none;
}
.search-input {
  width: 100%;
  padding: 14px 18px 14px 46px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  color: var(--fg); font-size: 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.search-input::placeholder { color: var(--fg-muted); }
.search-input:focus {
  border-color: rgba(201,149,47,0.4);
  box-shadow: 0 0 0 3px rgba(201,149,47,0.08);
}

/* ── SUBJECTS GRID ───────────────────────────────────────────────────── */
.subjects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.subject-card {
  position: relative;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  text-align: left; overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  cursor: pointer;
}
.subject-card::before {
  content: '';
  position: absolute; left: 0; top: 10px; bottom: 10px;
  width: 3px; background: var(--accent);
  border-radius: 0 3px 3px 0;
  transform: scaleY(0);
  transition: transform 0.3s ease;
}
.subject-card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
  transform: translateY(-2px);
}
.subject-card:hover::before { transform: scaleY(1); }
.subject-card:hover .subject-name { color: var(--primary); }
.subject-card:hover .subject-arrow { opacity: 1; transform: translateX(0); color: var(--primary); }
.subject-card:active { transform: translateY(0); }

.subject-name {
  font-size: 14px; font-weight: 500; color: var(--fg);
  transition: color 0.2s;
  padding-left: 12px; line-height: 1.35;
}
.subject-arrow {
  opacity: 0; transform: translateX(-10px);
  color: var(--fg-muted); flex-shrink: 0; margin-left: 8px;
  transition: opacity 0.2s, transform 0.2s, color 0.2s;
}

/* Empty state */
.empty-state {
  text-align: center; padding: 80px 24px;
  color: var(--fg-muted);
}
.empty-icon { opacity: 0.25; margin: 0 auto 12px; }
.empty-state h3 { font-size: 16px; font-weight: 600; color: var(--fg); margin-bottom: 4px; }
.empty-state p  { font-size: 14px; }

/* Pagination */
.pagination {
  display: flex; align-items: center; justify-content: center; gap: 12px;
}
.pagination-info { font-size: 14px; color: var(--fg-muted); }
.btn-page {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 18px; border-radius: var(--r-lg);
  font-size: 14px; font-weight: 500;
  border: 1px solid var(--border); background: var(--card); color: var(--fg);
  transition: background 0.15s, border-color 0.15s;
}
.btn-page:hover:not(:disabled) { background: var(--muted); border-color: var(--border-hover); }
.btn-page:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── PAPERS PAGE ─────────────────────────────────────────────────────── */
.breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--fg-muted);
  margin-bottom: 24px;
}
.breadcrumb-link { cursor: pointer; transition: color 0.15s; }
.breadcrumb-link:hover { color: var(--fg); }
.breadcrumb-current { color: var(--fg); font-weight: 500; }

.papers-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  flex-wrap: wrap; gap: 16px; margin-bottom: 32px;
}

.papers-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}

.paper-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 20px;
  transition: box-shadow 0.2s, transform 0.2s;
}
.paper-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.paper-card-top {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}
.paper-year {
  font-family: var(--font-display);
  font-size: 2.5rem; font-weight: 700; color: var(--primary); line-height: 1;
}

.file-badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  padding: 4px 10px; border-radius: 999px;
}
.file-badge.pdf  { background: rgba(59,130,246,0.12); color: #60a5fa; }
.file-badge.images { background: rgba(167,139,250,0.12); color: #a78bfa; }

.paper-desc {
  font-size: 13px; color: var(--fg-muted); line-height: 1.6;
  margin-bottom: 16px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

.paper-card-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 12px; border-top: 1px solid var(--border);
}
.paper-uploader { font-size: 12px; color: var(--fg-muted); }

.btn-download {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 12px; font-weight: 700;
  color: var(--primary);
  background: none; border: none; cursor: pointer;
  transition: opacity 0.15s;
}
.btn-download:hover { opacity: 0.7; text-decoration: underline; text-underline-offset: 3px; }

/* ── UPLOAD PAGE ─────────────────────────────────────────────────────── */
.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 20px;
  margin-bottom: 14px;
}

.form-label {
  display: block;
  font-size: 14px; font-weight: 600; color: var(--fg);
  margin-bottom: 12px;
}
.form-label .required { color: var(--accent); }
.form-label .optional { color: var(--fg-muted); font-weight: 400; font-size: 13px; margin-left: 4px; }

.form-hint { font-size: 12px; color: var(--fg-muted); margin-bottom: 8px; margin-top: -8px; }

.form-select {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--r); color: var(--fg); font-size: 14px;
  outline: none; appearance: none; cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-select:focus {
  border-color: rgba(201,149,47,0.4);
  box-shadow: 0 0 0 3px rgba(201,149,47,0.08);
}

.form-textarea {
  width: 100%; resize: vertical;
  padding: 12px 14px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--r); color: var(--fg); font-size: 14px;
  outline: none; line-height: 1.6;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-textarea::placeholder { color: var(--fg-muted); }
.form-textarea:focus {
  border-color: rgba(201,149,47,0.4);
  box-shadow: 0 0 0 3px rgba(201,149,47,0.08);
}

.year-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.year-chip {
  padding: 8px 16px; border-radius: var(--r);
  font-size: 14px; font-weight: 500;
  border: 1px solid var(--border);
  background: var(--bg); color: var(--fg);
  transition: all 0.15s; cursor: pointer;
}
.year-chip:hover { border-color: var(--border-hover); background: var(--muted); }
.year-chip.selected { background: var(--primary); color: var(--primary-fg); border-color: var(--primary); }

.file-type-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.file-type-card {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: 20px 16px; border-radius: var(--r-lg);
  border: 2px solid var(--border);
  background: var(--bg);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.file-type-card:hover { border-color: rgba(201,149,47,0.3); background: var(--muted); }
.file-type-card.selected { border-color: var(--primary); background: var(--primary-muted); }
.file-type-card .ftype-icon { transition: color 0.15s; color: var(--fg-muted); }
.file-type-card.selected .ftype-icon { color: var(--primary); }
.ftype-label { font-size: 14px; font-weight: 600; transition: color 0.15s; }
.file-type-card.selected .ftype-label { color: var(--primary); }
.ftype-desc { font-size: 12px; color: var(--fg-muted); text-align: center; line-height: 1.4; }

.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--r-lg);
  padding: 36px 24px; text-align: center;
  transition: border-color 0.2s, background 0.2s;
  cursor: pointer;
}
.dropzone:hover { border-color: rgba(201,149,47,0.4); background: rgba(201,149,47,0.03); }
.dropzone-icon { color: var(--fg-subtle); margin: 0 auto 10px; }
.dropzone:hover .dropzone-icon { color: rgba(201,149,47,0.4); }
.dropzone-text { font-size: 14px; color: var(--fg-muted); font-weight: 500; }
.dropzone-hint { font-size: 12px; color: var(--fg-subtle); margin-top: 4px; }

/* Gate card for unauthenticated upload */
.gate-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--r-2xl); padding: 48px 32px; text-align: center;
}
.gate-icon {
  width: 52px; height: 52px;
  background: var(--muted); border-radius: var(--r-xl);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; color: var(--fg-muted);
}
.gate-title { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.gate-desc { font-size: 14px; color: var(--fg-muted); max-width: 280px; margin: 0 auto 24px; }
.gate-actions { display: flex; gap: 12px; justify-content: center; }

/* Success state */
.success-card {
  background: var(--card);
  border: 1px solid var(--success-bd);
  border-radius: var(--r-2xl); padding: 48px 32px; text-align: center;
}
.success-icon {
  width: 56px; height: 56px;
  background: var(--success-bg); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; color: var(--success);
}
.success-title { font-family: var(--font-display); font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.success-desc { font-size: 14px; color: var(--fg-muted); max-width: 320px; margin: 0 auto 28px; }
.success-actions { display: flex; gap: 12px; justify-content: center; }

/* Submit button */
.btn-submit {
  width: 100%; padding: 16px;
  background: var(--primary); color: var(--primary-fg);
  border-radius: var(--r-xl);
  font-size: 15px; font-weight: 700;
  transition: opacity 0.15s, transform 0.1s;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-submit:hover:not(:disabled) { opacity: 0.9; }
.btn-submit:active:not(:disabled) { transform: scale(0.99); }
.btn-submit:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── AUTH FORMS (Login / Register) ───────────────────────────────────── */
.auth-wrapper {
  min-height: calc(100vh - var(--nav-h));
  display: flex; align-items: center; justify-content: center;
  padding: 48px 16px;
}

.auth-card {
  width: 100%; max-width: 440px;
  background: var(--bg-hero);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 40px 36px;
  box-shadow: var(--shadow-lg), 0 0 60px rgba(201,149,47,0.05);
}

.auth-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 4px 20px rgba(201,149,47,0.25);
}

.auth-title {
  font-family: var(--font-display);
  font-size: 28px; font-weight: 700;
  text-align: center; color: var(--fg);
  margin-bottom: 6px;
}
.auth-sub { text-align: center; color: var(--fg-muted); font-size: 14px; margin-bottom: 28px; }

.form-group { margin-bottom: 18px; }
.field-label {
  display: block; font-size: 13px; font-weight: 600;
  color: var(--fg); margin-bottom: 8px;
}
.field-input {
  width: 100%; 
  padding: 12px 16px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--r-lg); 
  color: var(--fg);
  font-size: 14px; 
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field-input::placeholder { color: var(--fg-muted); }
.field-input:focus {
  border-color: rgba(201,149,47,0.45);
  box-shadow: 0 0 0 3px rgba(201,149,47,0.1);
}

.alert-error {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 14px; border-radius: var(--r);
  background: var(--error-bg); border: 1px solid var(--error-bd);
  color: var(--error); font-size: 13px; margin-bottom: 16px;
}

.btn-auth {
  width: 100%; padding: 14px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--primary-fg); font-size: 15px; font-weight: 700;
  border-radius: var(--r-lg);
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: box-shadow 0.2s, transform 0.1s, opacity 0.15s;
  margin-bottom: 16px;
}
.btn-auth:hover:not(:disabled) { box-shadow: 0 4px 20px rgba(201,149,47,0.3); transform: scale(1.02); }
.btn-auth:active:not(:disabled) { transform: scale(1.0); }
.btn-auth:disabled { opacity: 0.5; cursor: not-allowed; }

.auth-switch { text-align: center; font-size: 14px; color: var(--fg-muted); }
.auth-switch-link {
  color: var(--primary); font-weight: 600; cursor: pointer;
  transition: opacity 0.15s;
}
.auth-switch-link:hover { opacity: 0.8; text-decoration: underline; text-underline-offset: 3px; }

/* ── ADMIN PANEL ─────────────────────────────────────────────────────── */
.admin-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 16px; margin-bottom: 40px;
}

.stat-card {
  border-radius: var(--r-xl); padding: 20px; text-align: center;
  border: 1px solid;
}
.stat-card.pending  { background: var(--warning-bg); border-color: var(--warning-bd); }
.stat-card.approved { background: var(--success-bg); border-color: var(--success-bd); }
.stat-card.rejected { background: var(--error-bg);   border-color: var(--error-bd);   }

.stat-card-icon { margin: 0 auto 8px; }
.stat-card.pending  .stat-card-icon { color: var(--warning); }
.stat-card.approved .stat-card-icon { color: var(--success); }
.stat-card.rejected .stat-card-icon { color: var(--error); }

.stat-card-value {
  font-family: var(--font-display);
  font-size: 2.2rem; font-weight: 700; line-height: 1;
}
.stat-card.pending  .stat-card-value { color: var(--warning); }
.stat-card.approved .stat-card-value { color: var(--success); }
.stat-card.rejected .stat-card-value { color: var(--error); }

.stat-card-label { font-size: 13px; font-weight: 600; margin-top: 6px; }
.stat-card.pending  .stat-card-label { color: var(--warning); }
.stat-card.approved .stat-card-label { color: var(--success); }
.stat-card.rejected .stat-card-label { color: var(--error); }

.section-heading {
  font-size: 17px; font-weight: 600; color: var(--fg);
  margin-bottom: 16px;
}

.all-clear {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--r-xl); padding: 48px 32px; text-align: center;
  margin-bottom: 40px; color: var(--fg-muted);
}
.all-clear svg { color: var(--success); margin: 0 auto 10px; }
.all-clear p { font-weight: 600; color: var(--fg); margin-bottom: 4px; }
.all-clear span { font-size: 14px; }

.pending-list { margin-bottom: 40px; }
.pending-item {
  background: var(--card);
  border: 1px solid var(--warning-bd);
  border-radius: var(--r-xl); padding: 20px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
  margin-bottom: 10px;
}
.pending-meta { flex: 1; min-width: 0; }
.pending-tags { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 6px; }
.pending-subject { font-weight: 600; font-size: 15px; }
.tag-year {
  font-size: 11px; font-weight: 600;
  background: var(--muted); color: var(--fg-muted);
  padding: 3px 8px; border-radius: 6px;
}
.pending-desc { font-size: 13px; color: var(--fg-muted); margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pending-submitter { font-size: 12px; color: var(--fg-muted); }
.pending-submitter span { color: var(--fg); font-weight: 600; }

.pending-actions { display: flex; gap: 8px; flex-shrink: 0; }

.btn-reject {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 18px; border-radius: var(--r-lg);
  font-size: 13px; font-weight: 600;
  background: var(--error-bg); border: 1px solid var(--error-bd); color: var(--error);
  transition: background 0.15s, transform 0.1s;
}
.btn-reject:hover  { background: rgba(248,113,113,0.15); }
.btn-reject:active { transform: scale(0.97); }

.btn-approve {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 18px; border-radius: var(--r-lg);
  font-size: 13px; font-weight: 600;
  background: var(--success-bg); border: 1px solid var(--success-bd); color: var(--success);
  transition: background 0.15s, transform 0.1s;
}
.btn-approve:hover  { background: rgba(34,197,94,0.15); }
.btn-approve:active { transform: scale(0.97); }

/* Admin table */
.admin-table-wrap {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--r-xl); overflow: hidden;
}
.admin-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.admin-table thead tr { background: rgba(22,43,71,0.5); border-bottom: 1px solid var(--border); }
.admin-table th {
  text-align: left; padding: 14px 20px;
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--fg-muted);
}
.admin-table td { padding: 14px 20px; }
.admin-table tbody tr { border-bottom: 1px solid var(--border); }
.admin-table tbody tr:last-child { border-bottom: none; }
.admin-table tbody tr:nth-child(even) { background: rgba(22,43,71,0.25); }
.admin-table td:first-child { font-weight: 500; }

.status-pill {
  display: inline-flex; font-size: 11px; font-weight: 700;
  padding: 4px 10px; border-radius: 999px; text-transform: capitalize;
}
.status-pill.approved { background: var(--success-bg); color: var(--success); }
.status-pill.rejected { background: var(--error-bg);   color: var(--error); }
.status-pill.pending  { background: var(--warning-bg); color: var(--warning); }

/* Access denied */
.access-denied {
  text-align: center; padding: 96px 24px; color: var(--fg-muted);
}
.access-denied svg { opacity: 0.2; margin: 0 auto 16px; }

/* ── UTILITIES ───────────────────────────────────────────────────────── */
.spinner { animation: spin 0.75s linear infinite; display: inline-block; }

/* ── ANIMATIONS ──────────────────────────────────────────────────────── */
@keyframes blobDrift {
  0%,100% { transform: translate(0,0) scale(1); }
  25%     { transform: translate(20px,-25px) scale(1.07); }
  50%     { transform: translate(-14px,16px) scale(0.93); }
  75%     { transform: translate(16px,10px) scale(1.04); }
}
.blob-c { animation: blobDriftCenter 14s ease-in-out infinite; animation-delay: 9s; }
@keyframes blobDriftCenter {
  0%,100% { transform: translate(-50%,-50%) scale(1); }
  25%     { transform: translate(calc(-50% + 20px),calc(-50% - 25px)) scale(1.07); }
  50%     { transform: translate(calc(-50% - 14px),calc(-50% + 16px)) scale(0.93); }
  75%     { transform: translate(calc(-50% + 16px),calc(-50% + 10px)) scale(1.04); }
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── RESPONSIVE ──────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links, .nav-auth { display: none; }
  .nav-mobile-toggle    { display: flex; }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 36px 20px 44px;
  }
  .hero-image-placeholder { display: none; }
  .hero-title { font-size: 2.4rem; }

  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .stat-item { padding: 8px; }

  .features-grid { grid-template-columns: 1fr; }

  .subjects-grid { grid-template-columns: 1fr; }

  .papers-grid { grid-template-columns: 1fr; }

  .features-section { padding: 48px 20px; }

  .page-container { padding: 28px 16px; }

  .auth-card { padding: 28px 22px; border-radius: 20px; }

  .admin-stats { grid-template-columns: 1fr; }

  .admin-table th:nth-child(4),
  .admin-table td:nth-child(4) { display: none; }

  .pending-item { flex-direction: column; }
  .pending-actions { width: 100%; }
  .btn-reject, .btn-approve { flex: 1; justify-content: center; }

  .footer-inner { flex-direction: column; align-items: center; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; }

  .file-type-grid { grid-template-columns: 1fr; }
}

@media (max-width: 540px) {
  .hero-cta { flex-direction: column; }
  .btn-hero-primary, .btn-hero-outline { width: 100%; justify-content: center; }
  .subjects-grid { grid-template-columns: 1fr; }
  .papers-grid { grid-template-columns: 1fr; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .subjects-grid { grid-template-columns: repeat(2, 1fr); }
  .papers-grid   { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-inner   { grid-template-columns: repeat(4, 1fr); }
}

/* ── LANDING HERO IMAGE STYLING ──────────────────────────────────────── */
.hero-image-wrapper {
  width: 80%;
  display: flex;
  transform: translateX(10%);
  align-items: center;
  justify-content: center;
  overflow: hidden;
  max-height: 440px; 
  border-radius: var(--r-xl);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  background: var(--card); /* Blends perfectly behind the image */
  padding: 16px; /* Gives the illustration a premium breathing frame */
}

.landing-hero-img {
  width: 100%;
  height: auto;
  max-height: 470px; /* Limits excessive size on ultra-wide screens */
  object-fit: contain; /* Prevents cropping; forces the full picture to scale down safely */
  display: block;
  border-radius: calc(var(--r-xl) - 4px);
  transition: transform 0.3s ease;
}

@media (max-width: 992px) {
  /* This completely eliminates the layout space of the image container on mobile */
  .hero-image {
    display: none !important;
  }
}

/* From Uiverse.io by adamgiebl */ 
.cssbuttons-io-button {
  background: var(--primary);
  color: white;
  font-family: inherit;
  padding: 0.35em;
  padding-left: 1.2em;
  font-size: 17px;
  font-weight: 500;
  border-radius: 0.9em;
  border: none;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  box-shadow: inset 0 0 1.6em -0.6em #714da6;
  overflow: hidden;
  position: relative;
  height: 2.8em;
  padding-right: 3.3em;
  cursor: pointer;
}

.cssbuttons-io-button .icon {
  background: white;
  margin-left: 1em;
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 2.2em;
  width: 2.2em;
  border-radius: 0.7em;
  box-shadow: 0.1em 0.1em 0.6em 0.2em var(--primary);
  right: 0.3em;
  transition: all 0.3s;
}

.cssbuttons-io-button:hover .icon {
  width: calc(100% - 0.6em);
}

.cssbuttons-io-button .icon svg {
  width: 1.1em;
  transition: transform 0.3s;
  color: var(--primary);
}

.cssbuttons-io-button:hover .icon svg {
  transform: translateX(0.1em);
}

.cssbuttons-io-button:active .icon {
  transform: scale(0.95);
}

/* From Uiverse.io by Nawsome */ 
.continue-application {
  --color: #fff;
  --background: #404660;
  --background-hover: #3A4059;
  --background-left: #2B3044;
  --folder: #F3E9CB;
  --folder-inner: #BEB393;
  --paper: #FFFFFF;
  --paper-lines: #BBC1E1;
  --paper-behind: #E1E6F9;
  --pencil-cap: #fff;
  --pencil-top: #275EFE;
  --pencil-middle: #fff;
  --pencil-bottom: #5C86FF;
  --shadow: rgba(13, 15, 25, .2);
  border: none;
  outline: none;
  cursor: pointer;
  position: relative;
  border-radius: 0.9em;
  font-size: 14px;
  font-weight: 500;
  line-height: 19px;
  -webkit-appearance: none;
  -webkit-tap-highlight-color: transparent;
  padding: 12px 25px 12px 74px;
  transition: background 0.3s;
  color: var(--color);
  background: #364d73;
}

.continue-application > div {
  top: 0;
  left: 0;
  bottom: 0;
  width: 53px;
  position: absolute;
  overflow: hidden;
  border-radius: 0.9em 0 0 0.9em;
  background: #1a2638;
}

.continue-application > div .folder {
  width: 23px;
  height: 27px;
  position: absolute;
  left: 15px;
  top: 13px;
}

.continue-application > div .folder .top {
  left: 0;
  top: 0;
  z-index: 2;
  position: absolute;
  transform: translateX(var(--fx, 0));
  transition: transform 0.4s ease var(--fd, 0.3s);
}

.continue-application > div .folder .top svg {
  width: 24px;
  height: 27px;
  display: block;
  fill: var(--folder);
  transform-origin: 0 50%;
  transition: transform 0.3s ease var(--fds, 0.45s);
  transform: perspective(120px) rotateY(var(--fr, 0deg));
}

.continue-application > div .folder:before, .continue-application > div .folder:after,
.continue-application > div .folder .paper {
  content: "";
  position: absolute;
  left: var(--l, 0);
  top: var(--t, 0);
  width: var(--w, 100%);
  height: var(--h, 100%);
  border-radius: 1px;
  background: var(--b, var(--folder-inner));
}

.continue-application > div .folder:before {
  box-shadow: 0 1.5px 3px var(--shadow), 0 2.5px 5px var(--shadow), 0 3.5px 7px var(--shadow);
  transform: translateX(var(--fx, 0));
  transition: transform 0.4s ease var(--fd, 0.3s);
}

.continue-application > div .folder:after,
.continue-application > div .folder .paper {
  --l: 1px;
  --t: 1px;
  --w: 21px;
  --h: 25px;
  --b: var(--paper-behind);
}

.continue-application > div .folder:after {
  transform: translate(var(--pbx, 0), var(--pby, 0));
  transition: transform 0.4s ease var(--pbd, 0s);
}

.continue-application > div .folder .paper {
  z-index: 1;
  --b: var(--paper);
}

.continue-application > div .folder .paper:before, .continue-application > div .folder .paper:after {
  content: "";
  width: var(--wp, 14px);
  height: 2px;
  border-radius: 1px;
  transform: scaleY(0.5);
  left: 3px;
  top: var(--tp, 3px);
  position: absolute;
  background: var(--paper-lines);
  box-shadow: 0 12px 0 0 var(--paper-lines), 0 24px 0 0 var(--paper-lines);
}

.continue-application > div .folder .paper:after {
  --tp: 6px;
  --wp: 10px;
}

.continue-application > div .pencil {
  height: 2px;
  width: 3px;
  border-radius: 1px 1px 0 0;
  top: 8px;
  left: 105%;
  position: absolute;
  z-index: 3;
  transform-origin: 50% 19px;
  background: var(--pencil-cap);
  transform: translateX(var(--pex, 0)) rotate(35deg);
  transition: transform 0.4s ease var(--pbd, 0s);
}

.continue-application > div .pencil:before, .continue-application > div .pencil:after {
  content: "";
  position: absolute;
  display: block;
  background: var(--b, linear-gradient(var(--pencil-top) 55%, var(--pencil-middle) 55.1%, var(--pencil-middle) 60%, var(--pencil-bottom) 60.1%));
  width: var(--w, 5px);
  height: var(--h, 20px);
  border-radius: var(--br, 2px 2px 0 0);
  top: var(--t, 2px);
  left: var(--l, -1px);
}

.continue-application > div .pencil:before {
  -webkit-clip-path: polygon(0 5%, 5px 5%, 5px 17px, 50% 20px, 0 17px);
  clip-path: polygon(0 5%, 5px 5%, 5px 17px, 50% 20px, 0 17px);
}

.continue-application > div .pencil:after {
  --b: none;
  --w: 3px;
  --h: 6px;
  --br: 0 2px 1px 0;
  --t: 3px;
  --l: 3px;
  border-top: 1px solid var(--pencil-top);
  border-right: 1px solid var(--pencil-top);
}

.continue-application:before, .continue-application:after {
  content: "";
  position: absolute;
  width: 10px;
  height: 2px;
  border-radius: 1px;
  background: var(--color);
  transform-origin: 9px 1px;
  transform: translateX(var(--cx, 0)) scale(0.5) rotate(var(--r, -45deg));
  top: 26px;
  right: 16px;
  transition: transform 0.3s;
}

.continue-application:after {
  --r: 45deg;
}

.continue-application:hover {
  --cx: 2px;
  --bg: var(--background-hover);
  --fx: -40px;
  --fr: -60deg;
  --fd: .15s;
  --fds: 0s;
  --pbx: 3px;
  --pby: -3px;
  --pbd: .15s;
  --pex: -24px;
}

/* ── CUSTOM CONFIRMATION MODAL ────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(26, 36, 51, 0.4); /* Dark slate backing with blur */
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.modal-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 90%;
  max-width: 400px;
  padding: 28px;
  text-align: center;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.modal-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px auto;
}

.modal-icon.warning {
  background: rgba(220, 38, 38, 0.08);
  color: #dc2626;
}

.modal-icon.success {
  background: var(--success-bg);
  color: var(--success);
}

.modal-card h3 {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  color: var(--fg);
  margin-bottom: 8px;
}

.modal-card p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.5;
  margin-bottom: 24px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.modal-actions button {
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  flex: 1;
}

.btn-secondary {
  background: var(--bg-hero);
  color: var(--fg);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--muted);
}

.btn-danger {
  background: #dc2626;
  color: #ffffff;
  border: none;
}

.btn-danger:hover {
  background: #b91c1c;
}

/* Micro-interaction animation */
.animate-fade-in {
  animation: modalScaleUp 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalScaleUp {
  from {
    transform: scale(0.92);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* ── ADMIN INTERACTIVE METADATA EDITORS ───────────────────────────────── */
.admin-edit-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 420px;
}

.form-group-inline {
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-group-inline label {
  font-size: 12px;
  font-weight: 600;
  color: var(--fg-muted);
  min-width: 60px;
}

.form-row-split {
  display: flex;
  gap: 16px;
  align-items: center;
}

.admin-edit-form .input-field {
  padding: 4px 8px;
  font-size: 13px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  flex: 1;
}

.admin-edit-form select.input-field {
  cursor: pointer;
}

.static-desc-text {
  font-size: 13px;
  color: var(--fg-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.uploader-email-subtext {
  font-size: 11px;
  color: var(--fg-subtle);
  padding-left: 68px;
}

.file-badge-container {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
}

.view-link-admin {
  font-size: 12px;
  color: var(--primary);
  text-decoration: none;
}

.view-link-admin:hover {
  text-decoration: underline;
}

.admin-actions-cell {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}

.btn-save-metadata {
  background-color: var(--fg);
  color: var(--bg);
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 6px;
  width: 100%;
}

.btn-save-metadata:hover {
  background-color: var(--fg-muted);
}

.status-action-toggles {
  display: flex;
  gap: 6px;
  align-items: center;
  width: 100%;
}

.style-toggle-back {
  font-size: 11px;
  padding: 4px 8px;
}

/* ── PREMIUM INTERACTIVE USER DROPDOWN COMPONENT ────────────────────────── */
.nav-user-container {
  position: relative;
  display: inline-block;
}

.user-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 310px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  padding: 18px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1), 
              transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), 
              visibility 0.2s;
}

/* Hover rule active unless explicitly clicked / pinned open */
.nav-user-container:hover .user-dropdown-menu:not(.is-pinned) {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Click/Sticky override state controlled by JavaScript class */
.user-dropdown-menu.is-pinned {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) !important;
}

.dropdown-profile-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
  margin-bottom: 14px;
}

.profile-avatar-large {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-fg);
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}

.profile-identity-details {
  flex: 1;
  min-width: 0;
}

.profile-detail-name {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-detail-email {
  font-size: 12px;
  color: var(--fg-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}

.profile-tier-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.profile-tier-badge.rank-admin {
  background: var(--success-bg);
  border: 1px solid var(--success-bd);
  color: var(--success);
}
.profile-tier-badge.rank-regular {
  background: var(--primary-muted);
  border: 1px solid var(--primary);
  color: var(--fg);
}

.profile-password-row {
  background: var(--bg);
  border-radius: var(--r);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  border: 1px solid var(--border);
}

.password-info-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
}

.password-display-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
}

.blurred-password-text {
  font-family: monospace;
  font-size: 14px;
  font-weight: bold;
  letter-spacing: 0.15em;
  color: var(--fg);
  transition: filter 0.25s ease;
}
.blurred-password-text.is-masked {
  filter: blur(4.5px);
  user-select: none;
}

.password-reveal-action-btn {
  color: var(--primary);
  padding: 2px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: background 0.1s;
}
.password-reveal-action-btn:hover {
  background: var(--muted);
}

.profile-papers-counter-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 14px;
}

.metric-counter-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-counter-card-title {
  font-size: 11px;
  font-weight: 500;
  color: var(--fg-muted);
  display: flex;
  align-items: center;
  gap: 5px;
}

.metric-counter-card-value {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--fg);
}

.dropdown-action-utilities {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.btn-dropdown-close-sticky {
  width: 100%;
  padding: 8px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--r);
  background: var(--error-bg);
  border: 1px solid var(--error-bd);
  color: var(--error);
  transition: background 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.btn-dropdown-close-sticky:hover {
  background: rgba(248, 113, 113, 0.15);
}
/* ── DROPDOWN INTERFACE REFINEMENTS ───────────────────────────────────── */
.password-status-pill {
  font-size: 11px;
  font-weight: 500;
  color: var(--success);
  background: var(--success-bg);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--success-bd);
  display: inline-block;
  margin-top: 2px;
}

.btn-reset-password-link {
  background: var(--primary-muted);
  color: var(--primary);
  border: 1px solid var(--border);
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--r);
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.btn-reset-password-link:hover {
  background: var(--primary);
  color: var(--primary-fg);
  border-color: var(--primary);
}

/* ── AUTH PAGES WRAPPER ALIGNMENT ────────────────────────────────────── */
.auth-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 120px);
  padding: 40px 20px;
}

.auth-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 420px;
  padding: 32px;
  box-sizing: border-box;
}

.auth-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--fg);
  margin: 0 0 8px 0;
  text-align: center;
}

.auth-subtitle {
  font-size: 14px;
  color: var(--fg-muted);
  margin: 0 0 24px 0;
  text-align: center;
  line-height: 1.5;
}

.auth-footer {
  font-size: 13px;
  color: var(--fg-muted);
  text-align: center;
  margin-top: 24px;
}

.auth-footer span {
  color: var(--primary);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
}
.auth-footer span:hover {
  color: var(--accent);
}

/* ── FORUM DASHBOARD FULL-WIDTH PERFECT ALIGNMENT ────────────────────── */

/* Strip off global container constraints, margins, and top paddings specifically for the forum page layout */
.container:has(.forum-container) {
  overflow: hidden !important;
  margin: 0 !important;
  padding: 0 !important;
  height: auto !important;
  max-height: none !important;
}

#app:has(.forum-container) {
  max-width: 100% !important;
  width: 100% !important;
  padding-top: var(--nav-h) !important;
  margin: 0 !important;
  min-height: 100vh !important;
}

/* This fixes the cutoff! We subtract 70px for the navbar height, and add overflow-y hidden to eliminate window gaps */
.forum-container {
  display: grid;
  grid-template-columns: 380px 1fr;
  height: calc(100vh - var(--nav-h)) !important; 
  margin-top: 0 !important;
  width: 100vw !important;
  background: var(--card);
  overflow: hidden;
  box-sizing: border-box;
}

/* Sidebar Container */
.forum-sidebar {
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  background: var(--bg-hero);
  overflow: hidden;
  height: 100%;
}

.forum-sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border);
  background: var(--card);
}
.forum-sidebar-header h3 { 
  font-family: var(--font-display); 
  color: var(--fg); 
  font-size: 20px;
  margin: 0 0 4px 0;
}
.forum-sidebar-header p { 
  font-size: 12px; 
  color: var(--fg-muted);
  margin: 0;
}

.create-thread-form {
  padding: 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--card);
}
.create-thread-form input, 
.create-thread-form select {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--bg);
  color: var(--fg);
  font-size: 13px;
  box-sizing: border-box;
  transition: border-color 0.2s;
}
.create-thread-form input:focus, 
.create-thread-form select:focus {
  border-color: var(--primary);
  outline: none;
}

.forum-threads-scroll-stack {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Thread Cards */
.forum-thread-item {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--card);
  cursor: pointer;
  transition: all 0.2s ease;
}
.forum-thread-item:hover { 
  background: var(--card-hover);
  transform: translateY(-1px);
  border-color: var(--primary-muted);
}
.forum-thread-item.active { 
  background: var(--card); 
  border-left: 4px solid var(--primary);
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.forum-thread-item h4 { 
  font-size: 15px; 
  font-weight: 600; 
  margin: 0 0 6px 0; 
  color: var(--fg); 
}

.forum-thread-meta { 
  font-size: 11px; 
  color: var(--primary); 
  font-weight: 600; 
  margin-bottom: 4px; 
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.forum-thread-author { 
  font-size: 11px; 
  color: var(--fg-subtle); 
}

/* Chat Screen Stage Area */
.forum-chat-stage {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  height: 100%;
  overflow: hidden;
  margin: 0 !important;
  padding: 0 !important;
  min-height:0;
}

.forum-chat-header {
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow-sm);
  flex-shrink:0;
}
.forum-chat-header h2 { 
  font-family: var(--font-display); 
  font-size: 24px; 
  margin: 0 0 4px 0;
}
.forum-chat-header p { 
  font-size: 13px; 
  color: var(--fg-muted);
  margin: 0;
}

.forum-messages-display {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height:0;
  overflow-y:auto;
}

/* Chat Bubble UI */
.forum-msg-bubble {
  background: var(--card);
  padding: 14px 18px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  max-width: 70%;
  align-self: flex-start;
  box-shadow: var(--shadow-sm);
}
.forum-msg-bubble.fulfillment {
  border-color: var(--success-bd);
  background: var(--success-bg);
}

.forum-msg-header { 
  display: flex; 
  gap: 12px; 
  align-items: baseline; 
  margin-bottom: 6px; 
  font-size: 13px;
}
.forum-msg-time { 
  color: var(--fg-subtle); 
  font-size: 11px; 
}
.forum-msg-text { 
  font-size: 14.5px; 
  line-height: 1.6; 
  color: var(--fg); 
}

.forum-attachment-dl-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 8px 16px;
  background: var(--primary);
  color: var(--primary-fg);
  border-radius: var(--r);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.2s;
}
.forum-attachment-dl-btn:hover {
  opacity: 0.9;
}

/* Message Input Bar at Bottom */
.forum-message-composer {
  padding: 20px 28px;
  border-top: 1px solid var(--border);
  background: var(--card);
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: auto;
  flex-shrink:0;
}

.composer-row {
  display: flex;
  gap: 12px;
  align-items: center;
}
.composer-row input {
  flex: 1;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--bg);
  color: var(--fg);
  font-size: 14px;
}
.composer-row input:focus {
  border-color: var(--primary);
  outline: none;
}

.forum-file-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid var(--success-bd);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  align-self: flex-start;
}

.publish-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--fg-muted);
  cursor: pointer;
  user-select: none;
}

.forum-empty-state {
  margin: auto;
  text-align: center;
  padding: 40px;
  color: var(--fg-subtle);
  max-width: 400px;
}
.forum-empty-state h3 { 
  margin: 16px 0 8px 0; 
  color: var(--fg); 
  font-family: var(--font-display);
  font-size: 22px;
}
.forum-empty-state p {
  font-size: 14px;
  line-height: 1.5;
  margin: 0;
}
.muted-svg { 
  color: var(--fg-subtle); 
  opacity: 0.35; 
}

/* Responsive Overrides */
@media (max-width: 900px) {
  .forum-container { 
    grid-template-columns: 1fr; 
    height: calc(100vh - 60px);
    margin-top: 60px;
  }
}

/* ── USER PROFILE SYSTEM BADGES (ALIGNED WITH NAVBAR CLASSES) ── */
.badges-container {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.profile-tier-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

/* System Admin Badge Styling */
.profile-tier-badge.rank-admin {
  background: rgba(220, 38, 38, 0.08);
  color: #dc2626;
  border: 1px solid rgba(220, 38, 38, 0.2);
}

/* Student Badge Styling */
.profile-tier-badge.rank-regular {
  background: rgba(2, 132, 199, 0.08);
  color: #0284c7;
  border: 1px solid rgba(2, 132, 199, 0.2);
}

/* Buddy Badge (5+ Uploads) Styling */
.profile-tier-badge.rank-buddy {
  background: rgba(22, 163, 74, 0.08);
  color: #16a34a;
  border: 1px solid rgba(22, 163, 74, 0.2);
}

/* Top Contributors Badge (10+ Uploads) Styling */
.profile-tier-badge.rank-top-contributor {
  background: rgba(201, 149, 47, 0.08);
  color: var(--primary, #c9952f);
  border: 1px solid rgba(201, 149, 47, 0.2);
}

/* Dark theme overrides for premium contrast */
[data-theme="dark"] .profile-tier-badge.rank-regular {
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
}
[data-theme="dark"] .profile-tier-badge.rank-admin {
  background: rgba(248, 113, 113, 0.15);
  color: #f87171;
  border: 1px solid rgba(248, 113, 113, 0.3);
}