/* ==========================================================================
   zinabondwa AI FORENSIC DETECTOR — NEO-BRUTALIST DESIGN SYSTEM
   ========================================================================== */

:root {
  --bg: #F8F5EE;
  --card-bg: #FFFFFF;
  --ink: #0E0E10;
  --ink-muted: #52525B;
  
  /* Brand & Status Colors */
  --yellow: #FFE600;
  --yellow-hover: #FED000;
  --red: #FF4444;
  --red-soft: #FFE5E5;
  --green: #00D68F;
  --green-soft: #E3FAF0;
  --blue: #3B82F6;
  --blue-soft: #EFF6FF;
  --purple: #B794F4;
  
  /* Neo-brutalist primitives */
  --border-width: 3px;
  --border: var(--border-width) solid var(--ink);
  --border-sm: 2px solid var(--ink);
  --shadow-offset: 4px;
  --shadow: 4px 4px 0px var(--ink);
  --shadow-lg: 6px 6px 0px var(--ink);
  --shadow-sm: 2px 2px 0px var(--ink);
  --radius: 0px; /* Sharp brutalism with deliberate micro-rounding on select badges */
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg);
  background-image: radial-gradient(var(--ink-muted) 0.75px, transparent 0.75px);
  background-size: 16px 16px;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
  padding: 1.5rem 1rem 3rem;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 920px;
  margin: 0 auto;
}

/* ==========================================================================
   HEADER & BRAND LOCKUP
   ========================================================================== */
.header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--card-bg);
  border: var(--border);
  box-shadow: var(--shadow-lg);
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-badge {
  background: var(--yellow);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 900;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: var(--border-sm);
  box-shadow: var(--shadow-sm);
}

.brand-title-wrap {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  line-height: 1.1;
}

.brand-subtitle {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ink-muted);
  text-transform: uppercase;
}

.header-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--green-soft);
  color: var(--ink);
  border: var(--border-sm);
  box-shadow: var(--shadow-sm);
  padding: 0.35rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.status-dot {
  width: 10px;
  height: 10px;
  background-color: var(--green);
  border: 1.5px solid var(--ink);
  border-radius: 50%;
  animation: pulse-dot 1.8s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* ==========================================================================
   CARDS & SECTIONS
   ========================================================================== */
.card {
  background: var(--card-bg);
  border: var(--border);
  box-shadow: var(--shadow-lg);
  padding: 1.75rem;
  margin-bottom: 2rem;
  position: relative;
}

.card-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: var(--border);
  margin: -1.75rem -1.75rem 1.5rem -1.75rem;
  padding: 0.75rem 1.25rem;
  background: var(--yellow);
}

.card-header-title {
  font-size: 1.1rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-header-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 800;
  background: var(--card-bg);
  border: var(--border-sm);
  padding: 0.15rem 0.5rem;
}

/* ==========================================================================
   ALERTS / NOTICES
   ========================================================================== */
.alert {
  background: var(--red-soft);
  color: var(--ink);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.alert-icon {
  background: var(--red);
  color: #FFFFFF;
  font-weight: 900;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border: var(--border-sm);
  flex-shrink: 0;
  font-size: 0.85rem;
}

.alert-content {
  font-weight: 600;
  font-size: 0.95rem;
}

/* ==========================================================================
   UPLOAD DROPZONE & FORM
   ========================================================================== */
.dropzone {
  border: 3px dashed var(--ink);
  background: #FCFBF7;
  padding: 2.25rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  margin-bottom: 1.25rem;
  position: relative;
}

.dropzone:hover, .dropzone.is-dragover {
  background: #FFFBE6;
  border-style: solid;
  border-color: var(--ink);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.dropzone input[type="file"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 5;
}

.dropzone-icon {
  width: 54px;
  height: 54px;
  margin: 0 auto 0.85rem;
  background: var(--yellow);
  border: var(--border-sm);
  box-shadow: var(--shadow-sm);
  display: grid;
  place-items: center;
  font-size: 1.75rem;
}

.dropzone-title {
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.dropzone-desc {
  color: var(--ink-muted);
  font-size: 0.88rem;
  margin-bottom: 0.85rem;
}

.dropzone-formats {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.format-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  background: var(--card-bg);
  border: var(--border-sm);
  padding: 0.15rem 0.45rem;
  text-transform: uppercase;
}

/* Preview Area */
.preview-card {
  display: none;
  background: #FFFDF8;
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1rem;
  margin-bottom: 1.25rem;
  align-items: center;
  gap: 1.25rem;
}

.preview-card.active {
  display: flex;
}

.preview-thumb-box {
  width: 72px;
  height: 72px;
  border: var(--border-sm);
  background: #E4E4E7;
  overflow: hidden;
  flex-shrink: 0;
}

.preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.preview-meta {
  flex: 1;
  min-width: 0;
}

.preview-name {
  font-weight: 800;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.2rem;
}

.preview-size {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-muted);
  font-weight: 600;
}

.btn-remove {
  background: var(--red);
  color: #FFFFFF;
  border: var(--border-sm);
  box-shadow: var(--shadow-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  text-transform: uppercase;
  transition: transform 0.1s;
}

.btn-remove:hover {
  transform: translate(-1px, -1px);
  box-shadow: var(--shadow);
}

.btn-remove:active {
  transform: translate(1px, 1px);
  box-shadow: 0 0 0;
}

/* Form Actions */
.form-actions {
  display: flex;
  justify-content: flex-end;
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  width: 100%;
  background: var(--yellow);
  color: var(--ink);
  border: var(--border);
  box-shadow: var(--shadow);
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  padding: 0.85rem 1.75rem;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.1s ease-in-out;
}

@media (min-width: 640px) {
  .btn-submit {
    width: auto;
  }
}

.result-actions {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: var(--border-sm);
  display: flex;
  justify-content: flex-end;
}

.btn-scan-another {
  width: 100%;
  text-decoration: none;
}

@media (min-width: 640px) {
  .btn-scan-another {
    width: auto;
  }
}

.btn-submit:hover:not(:disabled) {
  background: var(--yellow-hover);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
}

.btn-submit:active:not(:disabled) {
  transform: translate(2px, 2px);
  box-shadow: var(--shadow-sm);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   LATEST RESULT CARD (REPORT TICKET)
   ========================================================================== */
.result-card {
  border: var(--border);
  box-shadow: var(--shadow-lg);
  margin-bottom: 2rem;
  background: var(--card-bg);
}

.result-header {
  padding: 1rem 1.25rem;
  border-bottom: var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.result-header.is-ai {
  background: var(--red);
  color: #FFFFFF;
}

.result-header.is-real {
  background: var(--green);
  color: var(--ink);
}

.result-badge {
  font-size: 1.35rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.result-stamp {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
  border: var(--border-sm);
  padding: 0.2rem 0.6rem;
  background: #FFFFFF;
  color: var(--ink);
  box-shadow: var(--shadow-sm);
  text-transform: uppercase;
}

.result-body {
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .result-body {
    grid-template-columns: 140px 1fr;
    align-items: start;
  }
}

.result-thumb-box {
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 140px;
  border: var(--border);
  box-shadow: var(--shadow);
  background: #F4F4F5;
  overflow: hidden;
  margin: 0 auto;
}

.result-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.result-details {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.detail-row {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.detail-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.detail-value {
  font-size: 1.05rem;
  font-weight: 800;
  word-break: break-all;
}

/* Confidence meter */
.confidence-box {
  background: #F8F5EE;
  border: var(--border-sm);
  padding: 0.85rem;
  margin-top: 0.25rem;
}

.confidence-header {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.meter-track {
  height: 18px;
  background: #E4E4E7;
  border: var(--border-sm);
  position: relative;
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  transition: width 0.6s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.meter-fill.fill-ai {
  background: var(--red);
}

.meter-fill.fill-real {
  background: var(--green);
}

.engine-pill {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
  background: var(--blue-soft);
  color: var(--blue);
  border: var(--border-sm);
  padding: 0.25rem 0.65rem;
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   SCANS HISTORY TABLE
   ========================================================================== */
.table-container {
  overflow-x: auto;
  border: var(--border);
  box-shadow: var(--shadow);
  margin-top: 1rem;
  background: var(--card-bg);
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
  white-space: nowrap;
}

thead th {
  background: var(--ink);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.85rem 1rem;
  border-right: 1px solid #3F3F46;
}

thead th:last-child {
  border-right: none;
}

tbody td {
  padding: 0.85rem 1rem;
  border-top: var(--border-sm);
  border-right: 1px solid #E4E4E7;
  vertical-align: middle;
}

tbody td:last-child {
  border-right: none;
}

tbody tr:hover {
  background: #FAF8F2;
}

.table-thumb {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border: var(--border-sm);
  box-shadow: var(--shadow-sm);
  display: block;
}

/* Status Badges */
.badge-status {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border: var(--border-sm);
  box-shadow: var(--shadow-sm);
}

.badge-status.badge-ai {
  background: var(--red);
  color: #FFFFFF;
}

.badge-status.badge-real {
  background: var(--green);
  color: var(--ink);
}

.badge-method {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--ink-muted);
}

.empty-state {
  padding: 3rem 1.5rem;
  text-align: center;
  border: 3px dashed var(--ink);
  background: #FAF9F5;
  margin-top: 1rem;
}

.empty-title {
  font-size: 1.15rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.empty-desc {
  font-size: 0.88rem;
  color: var(--ink-muted);
}

/* ==========================================================================
   PIPELINE INFO / FOOTER
   ========================================================================== */
.pipeline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.pipeline-card {
  background: var(--card-bg);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1.1rem;
}

.pipeline-tier {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--yellow);
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border: var(--border-sm);
  margin-bottom: 0.5rem;
}

.pipeline-title {
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.pipeline-text {
  font-size: 0.82rem;
  color: var(--ink-muted);
  line-height: 1.4;
}

.footer {
  border-top: var(--border);
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-muted);
  font-weight: 600;
}

.footer-brand {
  font-weight: 800;
  color: var(--ink);
  text-transform: uppercase;
}

/* Focus styles for accessibility */
button:focus-visible, a:focus-visible, input:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 3px;
}