/* ============================================================
   THEMES — CSS custom properties
   ============================================================ */
:root,
[data-theme="blue"] {
  --c-primary:      #3b82f6;
  --c-primary-dk:   #1d4ed8;
  --c-primary-lt:   #60a5fa;
  --c-bg:           #f0f4ff;
  --c-bg2:          #e0e8ff;
  --c-header:       linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
  --c-header-solid: #1e3a8a;
  --c-header-text:  #FFFFFF;
  --c-text:         #0f172a;
  --c-text2:        #64748b;
  --c-card:         rgba(255,255,255,.82);
  --c-card-solid:   #ffffff;
  --c-border:       rgba(148,163,184,.22);
  --c-btn:          linear-gradient(135deg, #3b82f6, #2563eb);
  --c-btn-solid:    #3b82f6;
  --c-btn-text:     #FFFFFF;
  --c-badge:        #dbeafe;
  --c-badge-text:   #1e40af;
  --c-link:         #2563eb;
  --c-glow:         rgba(59,130,246,.18);
  --shadow:         0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(59,130,246,.08);
  --shadow-hover:   0 4px 24px rgba(59,130,246,.18), 0 1px 4px rgba(0,0,0,.08);
  --radius:         14px;
  --radius-sm:      10px;
  --blur:           20px;
}

[data-theme="green"] {
  --c-primary:      #16a34a;
  --c-primary-dk:   #15803d;
  --c-primary-lt:   #4ade80;
  --c-bg:           #f0fdf4;
  --c-bg2:          #dcfce7;
  --c-header:       linear-gradient(135deg, #14532d 0%, #16a34a 100%);
  --c-header-solid: #14532d;
  --c-header-text:  #FFFFFF;
  --c-text:         #052e16;
  --c-text2:        #6b7280;
  --c-card:         rgba(255,255,255,.82);
  --c-card-solid:   #ffffff;
  --c-border:       rgba(134,197,164,.22);
  --c-btn:          linear-gradient(135deg, #16a34a, #15803d);
  --c-btn-solid:    #16a34a;
  --c-btn-text:     #FFFFFF;
  --c-badge:        #dcfce7;
  --c-badge-text:   #166534;
  --c-link:         #16a34a;
  --c-glow:         rgba(22,163,74,.18);
  --shadow:         0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(22,163,74,.08);
  --shadow-hover:   0 4px 24px rgba(22,163,74,.18), 0 1px 4px rgba(0,0,0,.08);
  --radius:         14px;
  --radius-sm:      10px;
  --blur:           20px;
}

[data-theme="yellow"] {
  --c-primary:      #d97706;
  --c-primary-dk:   #b45309;
  --c-primary-lt:   #fbbf24;
  --c-bg:           #fffbeb;
  --c-bg2:          #fef3c7;
  --c-header:       linear-gradient(135deg, #78350f 0%, #d97706 100%);
  --c-header-solid: #78350f;
  --c-header-text:  #FFFFFF;
  --c-text:         #451a03;
  --c-text2:        #78716c;
  --c-card:         rgba(255,255,255,.82);
  --c-card-solid:   #ffffff;
  --c-border:       rgba(217,177,106,.22);
  --c-btn:          linear-gradient(135deg, #d97706, #b45309);
  --c-btn-solid:    #d97706;
  --c-btn-text:     #FFFFFF;
  --c-badge:        #fef3c7;
  --c-badge-text:   #92400e;
  --c-link:         #d97706;
  --c-glow:         rgba(217,119,6,.18);
  --shadow:         0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(217,119,6,.08);
  --shadow-hover:   0 4px 24px rgba(217,119,6,.18), 0 1px 4px rgba(0,0,0,.08);
  --radius:         14px;
  --radius-sm:      10px;
  --blur:           20px;
}

[data-theme="red"] {
  --c-primary:      #dc2626;
  --c-primary-dk:   #b91c1c;
  --c-primary-lt:   #f87171;
  --c-bg:           #fff5f5;
  --c-bg2:          #ffe4e6;
  --c-header:       linear-gradient(135deg, #7f1d1d 0%, #dc2626 100%);
  --c-header-solid: #7f1d1d;
  --c-header-text:  #FFFFFF;
  --c-text:         #450a0a;
  --c-text2:        #6b7280;
  --c-card:         rgba(255,255,255,.82);
  --c-card-solid:   #ffffff;
  --c-border:       rgba(220,120,120,.18);
  --c-btn:          linear-gradient(135deg, #dc2626, #b91c1c);
  --c-btn-solid:    #dc2626;
  --c-btn-text:     #FFFFFF;
  --c-badge:        #ffe4e6;
  --c-badge-text:   #991b1b;
  --c-link:         #dc2626;
  --c-glow:         rgba(220,38,38,.18);
  --shadow:         0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(220,38,38,.08);
  --shadow-hover:   0 4px 24px rgba(220,38,38,.18), 0 1px 4px rgba(0,0,0,.08);
  --radius:         14px;
  --radius-sm:      10px;
  --blur:           20px;
}

[data-theme="black"] {
  --c-primary:      #a78bfa;
  --c-primary-dk:   #7c3aed;
  --c-primary-lt:   #c4b5fd;
  --c-bg:           #0a0a0f;
  --c-bg2:          #141420;
  --c-header:       linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 100%);
  --c-header-solid: #0f0f1a;
  --c-header-text:  #e2e8f0;
  --c-text:         #f1f5f9;
  --c-text2:        #94a3b8;
  --c-card:         rgba(26,26,42,.75);
  --c-card-solid:   #1a1a2e;
  --c-border:       rgba(148,163,184,.12);
  --c-btn:          linear-gradient(135deg, #7c3aed, #6d28d9);
  --c-btn-solid:    #7c3aed;
  --c-btn-text:     #FFFFFF;
  --c-badge:        rgba(124,58,237,.2);
  --c-badge-text:   #c4b5fd;
  --c-link:         #a78bfa;
  --c-glow:         rgba(167,139,250,.15);
  --shadow:         0 1px 3px rgba(0,0,0,.3), 0 4px 16px rgba(0,0,0,.35);
  --shadow-hover:   0 4px 30px rgba(167,139,250,.2), 0 2px 8px rgba(0,0,0,.4);
  --radius:         14px;
  --radius-sm:      10px;
  --blur:           20px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background .35s ease, color .35s ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--c-link); text-decoration: none; transition: color .2s; }
a:hover { color: var(--c-primary-dk); }

::selection {
  background: var(--c-glow);
  color: var(--c-text);
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
  background: var(--c-header);
  color: var(--c-header-text);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--c-header-text);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -.4px;
  flex-shrink: 0;
  text-decoration: none;
  transition: opacity .2s;
}
.header-brand:hover { text-decoration: none; opacity: .85; }
.header-icon { font-size: 1.5rem; }

.header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: nowrap;
}

/* ============================================================
   LAYOUT SELECTOR
   ============================================================ */
.layout-selector {
  display: flex;
  align-items: center;
  gap: .2rem;
  background: rgba(255,255,255,.08);
  padding: .2rem;
  border-radius: 8px;
}

.layout-btn {
  padding: .25rem .4rem;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--c-header-text);
  cursor: pointer;
  font-size: .85rem;
  line-height: 1.3;
  transition: background .2s, opacity .2s;
  flex-shrink: 0;
  opacity: .55;
}
.layout-btn:hover  { background: rgba(255,255,255,.12); opacity: .85; }
.layout-btn.active { background: rgba(255,255,255,.18); opacity: 1; }

@media (max-width: 480px) {
  .layout-selector { gap: .1rem; }
  .layout-btn { padding: .2rem .3rem; font-size: .78rem; }
}

/* ============================================================
   THEME SELECTOR
   ============================================================ */
.theme-selector {
  display: flex;
  align-items: center;
  gap: .3rem;
}

.theme-btn {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.3);
  cursor: pointer;
  padding: 0;
  transition: transform .2s cubic-bezier(.34,1.56,.64,1), border-color .2s, box-shadow .2s;
  flex-shrink: 0;
}
.theme-btn:hover  { transform: scale(1.25); border-color: rgba(255,255,255,.8); }
.theme-btn.active {
  border-color: #fff;
  transform: scale(1.15);
  box-shadow: 0 0 0 3px rgba(255,255,255,.3);
}

.theme-blue   { background: #3b82f6; }
.theme-green  { background: #16a34a; }
.theme-yellow { background: #d97706; }
.theme-red    { background: #dc2626; }
.theme-black  { background: linear-gradient(135deg, #1a1a2e, #7c3aed); }

/* ============================================================
   ADMIN CONTROLS
   ============================================================ */
.admin-controls { display: flex; align-items: center; gap: .5rem; }

.login-form { display: flex; align-items: center; gap: .3rem; }

.input-sm {
  padding: .35rem .6rem;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.08);
  color: var(--c-header-text);
  font-family: inherit;
  font-size: .8rem;
  width: 100px;
  outline: none;
  transition: border-color .2s, background .2s, box-shadow .2s;
}
.input-sm::placeholder { color: rgba(255,255,255,.5); }
.input-sm:focus {
  border-color: rgba(255,255,255,.5);
  background: rgba(255,255,255,.12);
  box-shadow: 0 0 0 3px rgba(255,255,255,.08);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .3rem;
  padding: .42rem .9rem;
  border-radius: 8px;
  font-family: inherit;
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform .15s cubic-bezier(.34,1.56,.64,1), opacity .15s, box-shadow .2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); opacity: .92; }
.btn:active { transform: translateY(0) scale(.98); }

.btn-primary {
  background: var(--c-btn);
  color: var(--c-btn-text);
  box-shadow: 0 2px 8px var(--c-glow);
}
.btn-primary:hover { box-shadow: 0 4px 16px var(--c-glow); }

.btn-sm {
  padding: .3rem .7rem;
  font-size: .78rem;
}

.btn-outline-light {
  background: rgba(255,255,255,.08);
  border: 1.5px solid rgba(255,255,255,.25);
  color: var(--c-header-text);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,.15);
  border-color: rgba(255,255,255,.45);
  text-decoration: none;
}

.admin-badge {
  background: rgba(255,255,255,.12);
  color: var(--c-header-text);
  padding: .22rem .65rem;
  border-radius: 999px;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .6px;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,.15);
}

/* ============================================================
   FLASH MESSAGES
   ============================================================ */
.flash-container {
  max-width: 1280px;
  margin: .75rem auto 0;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

.flash {
  padding: .7rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: .5rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: flash-in .3s ease-out;
}
@keyframes flash-in {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.flash-success { background: rgba(209,250,229,.85); color: #065f46; border-left: 3px solid #10b981; }
.flash-error   { background: rgba(254,226,226,.85); color: #7f1d1d; border-left: 3px solid #ef4444; }
.flash-info    { background: rgba(224,242,254,.85); color: #0c4a6e; border-left: 3px solid #38bdf8; }
[data-theme="black"] .flash-success { background: rgba(5,46,22,.8); color: #86efac; }
[data-theme="black"] .flash-error   { background: rgba(69,10,10,.8); color: #fca5a5; }
[data-theme="black"] .flash-info    { background: rgba(12,35,64,.8); color: #93c5fd; }

/* ============================================================
   MAIN LAYOUT
   ============================================================ */
.main {
  flex: 1;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 1.75rem 1.5rem;
}

.page-header { margin-bottom: 1.75rem; }
.page-header h1 {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -.5px;
  background: var(--c-btn);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-header p {
  color: var(--c-text2);
  margin-top: .3rem;
  font-size: .88rem;
  font-weight: 500;
}

/* ============================================================
   CERTIFICATE GRID
   ============================================================ */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.25rem;
}

.cert-card {
  background: var(--c-card);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: box-shadow .3s ease, transform .3s cubic-bezier(.34,1.56,.64,1), border-color .3s;
  display: flex;
  flex-direction: column;
  position: relative;
}
.cert-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: var(--c-glow);
}

.cert-card-img {
  width: 100%;
  height: 180px;
  background: var(--c-bg2);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}
.cert-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,.06));
  pointer-events: none;
}

.cat-badge {
  position: absolute;
  top: .5rem;
  left: .5rem;
  font-size: 1.05rem;
  line-height: 1;
  background: rgba(0,0,0,.5);
  border-radius: 8px;
  padding: .28rem .35rem;
  pointer-events: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2;
}

.meta-cat-icon { font-size: 1.05rem; vertical-align: middle; margin-right: .2rem; }

.cert-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s cubic-bezier(.25,.46,.45,.94);
}
.cert-card:hover .cert-card-img img { transform: scale(1.06); }
.cert-no-img { font-size: 3.5rem; opacity: .25; }

.cert-card-body {
  padding: 1rem 1.1rem 1.1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.cert-name {
  font-size: .82rem;
  font-weight: 500;
  color: var(--c-text2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cert-contest {
  font-size: .92rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.35;
  letter-spacing: -.2px;
}

.cert-footer {
  margin-top: auto;
  padding-top: .55rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .4rem;
}

.badge {
  display: inline-block;
  padding: .2rem .6rem;
  border-radius: 999px;
  font-size: .7rem;
  font-weight: 600;
  background: var(--c-badge);
  color: var(--c-badge-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 140px;
  letter-spacing: .2px;
}

.cert-date { font-size: .73rem; color: var(--c-text2); flex-shrink: 0; font-weight: 500; }

/* ============================================================
   DELETE / REPROCESS BUTTONS (card overlay)
   ============================================================ */
.cert-reprocess-form {
  position: absolute;
  top: .5rem;
  right: 2.2rem;
  z-index: 10;
}

.btn-reprocess {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: none;
  background: rgba(37,99,235,.85);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: .9rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .2s, background .2s, transform .2s;
  line-height: 1;
  padding: 0;
}
.cert-card:hover .btn-reprocess { opacity: 1; }
.btn-reprocess:hover { background: #1d4ed8; transform: scale(1.1); }

.cert-delete-form {
  position: absolute;
  top: .5rem;
  right: .5rem;
  z-index: 10;
}

.btn-delete {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: none;
  background: rgba(220,38,38,.85);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: .75rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .2s, background .2s, transform .2s;
  line-height: 1;
  padding: 0;
}
.cert-card:hover .btn-delete { opacity: 1; }
.btn-delete:hover { background: #b91c1c; transform: scale(1.1); }

/* Reprocess & delete buttons on view page */
.btn-reprocess-full {
  width: 100%;
  padding: .55rem 1rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--c-border);
  background: transparent;
  color: var(--c-primary);
  font-family: inherit;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
}
.btn-reprocess-full:hover { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
[data-theme="black"] .btn-reprocess-full { color: var(--c-link); border-color: rgba(148,163,184,.15); }
[data-theme="black"] .btn-reprocess-full:hover { background: rgba(124,58,237,.25); color: #c4b5fd; border-color: rgba(124,58,237,.4); }

.btn-delete-full {
  width: 100%;
  padding: .55rem 1rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid rgba(220,38,38,.25);
  background: transparent;
  color: #dc2626;
  font-family: inherit;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
}
.btn-delete-full:hover { background: #dc2626; color: #fff; border-color: #dc2626; }
[data-theme="black"] .btn-delete-full { border-color: rgba(127,29,29,.4); color: #f87171; }
[data-theme="black"] .btn-delete-full:hover { background: rgba(127,29,29,.5); color: #fecaca; }

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state {
  text-align: center;
  padding: 5rem 1rem;
  color: var(--c-text2);
}
.empty-icon { font-size: 4rem; margin-bottom: 1rem; opacity: .4; }
.empty-state h2 { font-size: 1.3rem; margin-bottom: .5rem; color: var(--c-text); font-weight: 700; }
.empty-state p  { font-size: .9rem; }

/* ============================================================
   UPLOAD PAGE
   ============================================================ */
.upload-container {
  max-width: 560px;
  margin: 2rem auto;
  background: var(--c-card);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}
.upload-container h2 {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -.3px;
  background: var(--c-btn);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: .4rem;
}
.upload-container p.subtitle { color: var(--c-text2); font-size: .85rem; margin-bottom: 1.5rem; font-weight: 500; }

.drop-zone {
  border: 2px dashed var(--c-border);
  border-radius: var(--radius-sm);
  padding: 2.5rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color .25s, background .25s, box-shadow .25s;
  background: var(--c-bg);
}
.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--c-primary);
  background: var(--c-bg2);
  box-shadow: 0 0 0 4px var(--c-glow);
}
.drop-icon  { font-size: 2.5rem; margin-bottom: .5rem; }
.drop-label { font-size: .88rem; color: var(--c-text2); margin-bottom: .25rem; font-weight: 500; }
.drop-label strong { color: var(--c-link); cursor: pointer; }
.drop-hint  { font-size: .76rem; color: var(--c-text2); opacity: .6; font-weight: 500; }
#file-name  { margin-top: .75rem; font-size: .82rem; color: var(--c-primary); font-weight: 600; }

.upload-actions { margin-top: 1.25rem; display: flex; gap: .75rem; align-items: center; }
.upload-actions .btn-primary { padding: .55rem 1.5rem; font-size: .88rem; }
.upload-actions a { font-size: .85rem; color: var(--c-text2); font-weight: 500; }
.upload-actions a:hover { color: var(--c-link); }

/* ============================================================
   LOADING OVERLAY
   ============================================================ */
.loading-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 9999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  gap: 1.25rem;
}
.loading-overlay.active { display: flex; }
.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255,255,255,.15);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .75s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-overlay p { font-size: 1.05rem; font-weight: 600; opacity: .9; }
.loading-overlay small { font-size: .8rem; opacity: .55; font-weight: 500; }

/* ============================================================
   VIEW PAGE
   ============================================================ */
.view-container { display: grid; grid-template-columns: 1fr 380px; gap: 1.5rem; align-items: start; }

.view-image-wrap {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.view-image-wrap img { width: 100%; height: auto; display: block; }
.view-no-img {
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  opacity: .2;
  background: var(--c-bg2);
}

.view-meta {
  background: var(--c-card);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.view-meta h2 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -.3px;
  background: var(--c-btn);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.meta-row { display: flex; flex-direction: column; gap: .15rem; }
.meta-label { font-size: .7rem; text-transform: uppercase; letter-spacing: .7px; color: var(--c-text2); font-weight: 600; }
.meta-value { font-size: .92rem; color: var(--c-text); font-weight: 500; white-space: pre-wrap; }
.meta-value--prominent { font-size: 1rem; font-weight: 700; line-height: 1.35; }
.panel-meta { display: flex; flex-direction: column; gap: .6rem; margin-bottom: 1rem; }

.view-divider { border: none; border-top: 1px solid var(--c-border); }

.view-actions { display: flex; flex-direction: column; gap: .5rem; }
.view-actions a {
  display: block;
  padding: .55rem 1rem;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 600;
  text-align: center;
  border: 1.5px solid var(--c-border);
  color: var(--c-text);
  transition: all .2s;
}
.view-actions a:hover { background: var(--c-bg2); text-decoration: none; border-color: var(--c-primary); }
.view-actions a.primary-link {
  background: var(--c-btn);
  color: var(--c-btn-text);
  border-color: transparent;
  box-shadow: 0 2px 8px var(--c-glow);
}
.view-actions a.primary-link:hover { opacity: .88; box-shadow: 0 4px 16px var(--c-glow); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  text-align: center;
  padding: 1.25rem;
  font-size: .76rem;
  font-weight: 500;
  color: var(--c-text2);
  border-top: 1px solid var(--c-border);
  margin-top: 2rem;
  letter-spacing: .2px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .view-container { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .header-brand span.header-title { display: none; }
  .login-form .input-sm { width: 80px; }
  .cert-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 420px) {
  .cert-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   LANDING SPLIT LAYOUT (70 / 30)
   ============================================================ */
.landing-split {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.landing-left {
  flex: 0 0 70%;
  min-width: 0;
}

.landing-right {
  flex: 1;
  position: sticky;
  top: 5rem;
  background: var(--c-card);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  min-height: 220px;
  box-shadow: var(--shadow);
  transition: box-shadow .3s;
}

/* filter bar */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1.25rem;
}
.filter-input {
  flex: 1 1 140px;
  padding: .45rem .75rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-card);
  color: var(--c-text);
  font-family: inherit;
  font-size: .85rem;
  font-weight: 500;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.filter-input:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px var(--c-glow);
}
.filter-search { flex: 2 1 180px; }
.filter-select { cursor: pointer; appearance: none; }
.no-results-msg {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--c-text2);
  font-size: .92rem;
  font-weight: 500;
}

/* selected card highlight */
.cert-card.selected {
  outline: 2px solid var(--c-primary);
  outline-offset: -2px;
  box-shadow: var(--shadow-hover);
}

/* right panel — placeholder */
.preview-placeholder {
  text-align: center;
  color: var(--c-text2);
  padding: 3rem 1rem;
  font-size: .88rem;
  font-weight: 500;
  line-height: 1.6;
}

/* right panel — image */
.preview-img {
  width: 100%;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  object-fit: contain;
  max-height: 260px;
  display: block;
  border: 1px solid var(--c-border);
}

.preview-no-img {
  text-align: center;
  font-size: 3rem;
  opacity: .25;
  padding: 1.5rem 0;
}

/* right panel — metadata */
.preview-meta {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: .65rem;
  row-gap: .3rem;
  align-items: baseline;
  font-size: .86rem;
  margin-bottom: 1rem;
}
.preview-meta dt {
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .7px;
  color: var(--c-text2);
  font-weight: 600;
  white-space: nowrap;
  padding-top: .1rem;
}
.preview-meta dd {
  margin: 0;
  color: var(--c-text);
  font-weight: 500;
}
.meta-value-ro { font-weight: 500; white-space: pre-wrap; }
.meta-value-ro--prominent {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.35;
  text-align: left;
}

/* inline editable metadata inputs */
.meta-input {
  display: block;
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1.5px dashed transparent;
  border-radius: 0;
  color: var(--c-text);
  font-family: inherit;
  font-size: .86rem;
  font-weight: 500;
  padding: 3px 4px;
  cursor: pointer;
  outline: none;
  transition: border-color .2s, background .2s, padding .2s;
}
.meta-input:hover { border-bottom-color: var(--c-border); }
.meta-input:focus {
  border-bottom-color: var(--c-primary);
  background: var(--c-bg2);
  cursor: text;
  padding: 4px 6px;
  border-radius: 6px 6px 0 0;
}
.meta-select { appearance: none; -webkit-appearance: none; cursor: pointer; }
.meta-textarea { resize: vertical; min-height: 2.4rem; line-height: 1.5; }
.meta-select:focus { cursor: pointer; }

/* save button — hidden until a field is touched */
.btn-save-meta {
  display: none;
  width: 100%;
  margin-top: .75rem;
  padding: .48rem .9rem;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--c-btn);
  color: var(--c-btn-text);
  font-family: inherit;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s, transform .15s, box-shadow .2s;
  box-shadow: 0 2px 8px var(--c-glow);
}
.btn-save-meta:hover { opacity: .9; transform: translateY(-1px); box-shadow: 0 4px 16px var(--c-glow); }
.btn-save-meta.visible { display: block; }

/* right panel — actions */
.preview-actions {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  margin-top: 1rem;
}
.preview-actions .btn {
  text-align: center;
  text-decoration: none;
}

/* responsive: stack below 900px */
@media (max-width: 900px) {
  .landing-split { flex-direction: column; }
  .landing-left  { flex: none; width: 100%; }
  .landing-right { flex: none; width: 100%; position: static; }
}

/* ============================================================
   LAYOUT VARIANTS
   ============================================================ */

/* ---- LIST: horizontal rows, thumbnail left ---- */
[data-layout="list"] .cert-grid {
  grid-template-columns: 1fr;
  gap: .45rem;
}
[data-layout="list"] .cert-card {
  flex-direction: row;
  align-items: stretch;
}
[data-layout="list"] .cert-card-img {
  width: 110px;
  min-width: 110px;
  height: auto;
  min-height: 80px;
  flex-shrink: 0;
  border-radius: 0;
}
[data-layout="list"] .cert-card-img img {
  height: 100%;
  object-fit: cover;
}
[data-layout="list"] .cert-card-body {
  padding: .55rem .85rem;
  justify-content: center;
  gap: .25rem;
}
[data-layout="list"] .cert-contest { font-size: .88rem; }
[data-layout="list"] .cert-footer  { padding-top: .3rem; }
[data-layout="list"] .cat-badge    { top: auto; bottom: .35rem; }
[data-layout="list"] .btn-reprocess,
[data-layout="list"] .btn-delete   { top: .3rem; }

/* ---- COMPACT: no images, single dense row ---- */
[data-layout="compact"] .cert-grid {
  grid-template-columns: 1fr;
  gap: .2rem;
}
[data-layout="compact"] .cert-card  { border-radius: 8px; }
[data-layout="compact"] .cert-card-img { display: none; }
[data-layout="compact"] .cert-card-body {
  flex-direction: row;
  align-items: center;
  padding: .5rem .9rem;
  gap: .65rem;
  flex-wrap: nowrap;
}
[data-layout="compact"] .cert-contest {
  flex: 1;
  min-width: 0;
  font-size: .86rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
[data-layout="compact"] .cert-name {
  flex-shrink: 0;
  white-space: nowrap;
  color: var(--c-text2);
}
[data-layout="compact"] .cert-footer {
  flex-shrink: 0;
  margin-top: 0;
  padding-top: 0;
}
[data-layout="compact"] .badge { display: none; }
[data-layout="compact"] .btn-reprocess,
[data-layout="compact"] .btn-delete { top: .3rem; }

/* ---- COMFORT: bigger images, roomier cards ---- */
[data-layout="comfort"] .cert-grid {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}
[data-layout="comfort"] .cert-card-img { height: 240px; }
[data-layout="comfort"] .cert-contest  { font-size: .98rem; }
[data-layout="comfort"] .cert-name     { font-size: .84rem; }
[data-layout="comfort"] .cert-card-body { padding: 1rem 1.1rem 1.1rem; gap: .4rem; }
@media (max-width: 640px) {
  [data-layout="comfort"] .cert-grid { grid-template-columns: 1fr; }
}

/* ---- STACK: full-width feed, one card per row ---- */
[data-layout="stack"] .cert-grid {
  grid-template-columns: 1fr;
  gap: 1rem;
}
[data-layout="stack"] .cert-card-img  { height: 210px; }
[data-layout="stack"] .cert-card-body { padding: 1rem 1.2rem 1.1rem; gap: .45rem; }
[data-layout="stack"] .cert-contest   { font-size: 1.05rem; }
[data-layout="stack"] .cert-name      { font-size: .86rem; }

/* ============================================================
   ADMIN PANEL
   ============================================================ */
.admin-section {
  margin-top: 2rem;
  padding: 1.75rem;
  background: var(--c-card);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.admin-section h3 {
  margin: 0 0 .5rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -.2px;
  background: var(--c-btn);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.sync-buttons {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  margin-top: 1.25rem;
}
.sync-error {
  margin-top: 1rem;
  padding: .75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: .88rem;
  font-weight: 500;
}
.sync-error.sync-error {
  background: rgba(254,226,226,.85);
  color: #991b1b;
  border: 1px solid #fca5a5;
}
.sync-error.sync-success {
  background: rgba(220,252,231,.85);
  color: #166534;
  border: 1px solid #86efac;
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: modal-bg-in .25s ease-out;
}
@keyframes modal-bg-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.modal-box {
  background: var(--c-card-solid);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 420px;
  width: 90%;
  box-shadow: 0 16px 64px rgba(0,0,0,.25);
  animation: modal-in .3s cubic-bezier(.34,1.56,.64,1);
}
@keyframes modal-in {
  from { opacity: 0; transform: scale(.92) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-box h3 {
  margin: 0 0 1.25rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -.2px;
  background: var(--c-btn);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.modal-counts {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  margin-bottom: 1rem;
}
.count-row {
  display: flex;
  justify-content: space-between;
  padding: .55rem .85rem;
  background: var(--c-bg);
  border-radius: var(--radius-sm);
  font-size: .9rem;
  border: 1px solid var(--c-border);
}
.count-label { color: var(--c-text2); font-weight: 500; }
.count-value { font-weight: 700; color: var(--c-text); }
.modal-warning {
  font-size: .85rem;
  font-weight: 500;
  color: #b45309;
  background: rgba(254,243,199,.85);
  border: 1px solid #fcd34d;
  border-radius: var(--radius-sm);
  padding: .65rem .85rem;
  margin: 0 0 1.25rem;
}
[data-theme="black"] .modal-warning {
  background: rgba(120,53,15,.3);
  color: #fbbf24;
  border-color: rgba(251,191,36,.25);
}
.modal-actions {
  display: flex;
  gap: .75rem;
  justify-content: flex-end;
}
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--c-border);
  color: var(--c-text);
  font-family: inherit;
}
.btn-outline:hover {
  background: var(--c-bg2);
  border-color: var(--c-primary);
}

/* ============================================================
   GOOGLE SIGN-IN BUTTON
   ============================================================ */
.google-signin-btn {
  background: #fff;
  color: #3c4043;
  border: 1.5px solid rgba(255,255,255,.35);
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-weight: 600;
  font-size: .78rem;
  padding: .3rem .75rem;
  border-radius: 8px;
  white-space: nowrap;
  transition: box-shadow .2s, transform .2s;
}
.google-signin-btn:hover {
  box-shadow: 0 2px 12px rgba(0,0,0,.18);
  transform: translateY(-1px);
  text-decoration: none;
  color: #3c4043;
}
[data-theme="black"] .google-signin-btn { background: rgba(255,255,255,.92); }

/* ============================================================
   USER DISPLAY IN HEADER
   ============================================================ */
.user-display {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  color: var(--c-header-text);
  font-size: .8rem;
  font-weight: 600;
  opacity: .88;
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.user-google-icon { flex-shrink: 0; }

.guest-badge {
  background: rgba(255,255,255,.1);
  color: var(--c-header-text);
  padding: .22rem .65rem;
  border-radius: 999px;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .6px;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,.18);
  opacity: .85;
}

/* ============================================================
   LOGIN LOG
   ============================================================ */
.login-log {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  margin-top: 1rem;
}

.login-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .65rem .9rem;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background .2s, border-color .2s, transform .15s;
  user-select: none;
}
.login-row:hover {
  background: var(--c-bg2);
  border-color: var(--c-primary);
  transform: translateX(2px);
}
.login-row--password {
  cursor: default;
  opacity: .7;
}
.login-row--password:hover {
  transform: none;
  border-color: var(--c-border);
  background: var(--c-bg);
}
.login-row--loading { opacity: .5; pointer-events: none; }

.login-method-icon {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  width: 20px;
  justify-content: center;
  font-size: .95rem;
}

.login-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: .1rem;
}
.login-name {
  font-size: .85rem;
  font-weight: 600;
  color: var(--c-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.login-email {
  font-size: .73rem;
  color: var(--c-text2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.login-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: .1rem;
  flex-shrink: 0;
}
.login-ip   { font-size: .7rem; color: var(--c-text2); font-weight: 500; }
.login-time { font-size: .7rem; color: var(--c-text2); }

.login-role-badge {
  flex-shrink: 0;
  padding: .18rem .55rem;
  border-radius: 999px;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .4px;
  text-transform: uppercase;
}
.role-admin {
  background: var(--c-badge);
  color: var(--c-badge-text);
}
.role-guest {
  background: var(--c-bg2);
  color: var(--c-text2);
  border: 1px solid var(--c-border);
}

.login-action-hint {
  font-size: .68rem;
  color: var(--c-text2);
  opacity: 0;
  transition: opacity .2s;
  white-space: nowrap;
  flex-shrink: 0;
}
.login-row:not(.login-row--password):hover .login-action-hint { opacity: 1; }