/* ===== MODERN CHECKER STYLES ===== */

:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --accent: #fbbf24;
  --success: #10b981;
  --danger: #ef4444;
  --bg-gray: #f8fafc;
  --border: #e2e8f0;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

body {
  font-family: 'Nunito', system-ui, sans-serif;
  background: var(--bg-gray);
  color: var(--text-main);
  margin: 0;
  line-height: 1.6;
}

/* --- Hero Section --- */
.hero-band {
  background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
  color: white;
  padding: 3rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-band::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero-title em {
  color: var(--accent);
  font-style: normal;
  text-shadow: 0 2px 10px rgba(251, 191, 36, 0.3);
}

.hero-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #93c5fd;
  margin-bottom: 8px;
}

/* --- Toggle Switch --- */
.type-toggle {
  display: inline-flex;
  background: rgba(0, 0, 0, 0.2);
  padding: 5px;
  border-radius: 50px;
  backdrop-filter: blur(8px);
}

.toggle-pill {
  padding: 10px 30px;
  border-radius: 50px;
  border: none;
  background: transparent;
  color: white;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: 8px;
}

.toggle-pill .pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transition: all 0.3s;
}

.toggle-pill.active {
  background: white;
  color: var(--primary-dark);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.toggle-pill.active .pill-dot {
  background: var(--primary);
}

/* --- Layout Grid --- */
.main-grid {
  max-width: 1300px;
  margin: 40px auto 60px;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 440px;
  gap: 30px;
  position: relative;
  z-index: 10;
}

@media (max-width: 900px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Cards Styling --- */
.form-card {
  background: white;
  border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 25px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.form-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px -5px rgba(0, 0, 0, 0.08);
}

.card-eyebrow {
  background: #fcfdfe;
  padding: 18px 25px;
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--primary-dark);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-eyebrow i {
  color: var(--primary);
  font-size: 1.1rem;
}

/* --- Form Elements --- */
.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  padding: 25px;
}

.field-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-wrap label {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
}

.field-input,
.field-textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border);
  border-radius: 12px;
  font-size: 1rem;
  transition: all 0.2s;
  box-sizing: border-box;
  background: var(--bg-gray);
  color: var(--text-main);
  font-family: inherit;
}

.field-input:focus,
.field-textarea:focus {
  border-color: var(--primary);
  background: white;
  outline: none;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}

.mt-3 {
  margin-top: 15px;
  width: calc(100% - 50px);
  margin-left: 25px;
  margin-bottom: 25px;
}

/* --- Improved Drop Zone --- */
.drop-zone {
  margin: 25px;
  border: 2px dashed #cbd5e1;
  border-radius: 16px;
  background: #fbfcfe;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.drop-zone.dragover {
  border-color: var(--primary);
  background: #eff6ff;
}

.drop-zone.has-file {
  border-style: solid;
  border-color: var(--success);
  background: #ecfdf5;
}

.dz-body {
  padding: 40px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.dz-icon {
  font-size: 32px;
  color: var(--text-muted);
  margin-bottom: 5px;
}

.dz-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
}

.dz-sub {
  font-size: 12px;
  color: var(--text-muted);
}

.dz-btn {
  margin-top: 10px;
  padding: 8px 24px;
  background: white;
  border: 1.5px solid var(--border);
  border-radius: 50px;
  font-weight: 700;
  color: var(--text-main);
  font-size: 13px;
  cursor: pointer;
  transition: 0.3s;
}

.dz-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: #eff6ff;
}

.dz-loading,
.dz-success {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-weight: 700;
  font-size: 14px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(4px);
}

.dz-success {
  color: var(--success);
}

.dz-success i {
  font-size: 20px;
}

.dz-remove {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: none;
  background: #fef2f2;
  color: var(--danger);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.3s;
  margin-left: 8px;
}

.dz-remove:hover {
  background: var(--danger);
  color: white;
}

/* --- Spinners --- */
.spin-ring {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(59, 130, 246, 0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spin-ring.sm {
  width: 18px;
  height: 18px;
  border-width: 2.5px;
  border-color: rgba(255, 255, 255, 0.3);
  border-top-color: white;
}

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

/* --- Results Card --- */
.results-col {
  position: sticky;
  top: 100px;
}

.results-card {
  background: white;
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  min-height: 500px;
}

/* Empty State */
.empty-state {
  padding: 60px 30px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.empty-icon {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.empty-state h3 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 10px;
}

.empty-state p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 25px;
}

.empty-steps {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 20px;
  background: var(--bg-gray);
  border-radius: 12px;
  border: 1px solid var(--border);
  flex-wrap: wrap;
  justify-content: center;
}

.empty-steps span {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.empty-steps .fa-arrow-right {
  font-size: 11px;
  color: #cbd5e1;
}

.empty-steps i:not(.fa-arrow-right) {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: #eff6ff;
  color: var(--primary);
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Results Loading */
.results-loading {
  padding: 80px 30px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.loading-anim {
  position: relative;
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.pulse-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--primary);
  animation: pulse 1.5s ease-in-out infinite;
}

.pulse-ring::after {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 2px solid rgba(59, 130, 246, 0.2);
  animation: pulse 1.5s ease-in-out 0.4s infinite;
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }

  50% {
    transform: scale(1.15);
    opacity: 0.5;
  }
}

.loading-bot {
  font-size: 26px;
  color: var(--primary);
  z-index: 2;
}

.loading-text {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 6px;
}

.loading-sub {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Score Hero */
.score-hero {
  background: linear-gradient(to bottom, #f0f7ff, white);
  padding: 40px 20px 30px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.score-ring-wrap {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0 auto 20px;
}

.score-ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.ring-bg {
  fill: none;
  stroke: var(--border);
  stroke-width: 8;
}

.ring-fill {
  fill: none;
  stroke: var(--primary);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.score-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.score-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--primary-dark);
  line-height: 1;
}

.score-max {
  font-size: 1rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 600;
}

.score-meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.score-pct {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
}

.score-grade {
  font-size: 48px;
  font-weight: 900;
  color: var(--text-main);
  line-height: 1;
  text-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.score-verdict {
  display: inline-flex;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.score-verdict.pass {
  background: #dcfce7;
  color: #166534;
}

.score-verdict.fail {
  background: #fee2e2;
  color: #991b1b;
}

.score-verdict.warn {
  background: #fef3c7;
  color: #92400e;
}

.score-student {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  margin-top: 5px;
}

/* Sections */
.result-section {
  padding: 25px 30px;
  border-top: 1px solid var(--border);
}

.section-label {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 15px;
}

.section-label i {
  color: var(--primary);
  font-size: 14px;
}

.feedback-body {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-main);
  background: #f8fafc;
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
}

/* Feedback Lists */
.two-up {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 25px 30px;
  border-top: 1px solid var(--border);
}

.list-block {
  padding: 20px;
  border-radius: 16px;
}

.strengths {
  background: #f0fdf4;
  border: 1px solid #dcfce7;
}

.improvements {
  background: #fff7ed;
  border: 1px solid #ffedd5;
}

.list-header {
  font-weight: 800;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  text-transform: uppercase;
}

.strengths .list-header {
  color: #166534;
}

.strengths .list-header i {
  color: var(--success);
}

.improvements .list-header {
  color: #9a3412;
}

.improvements .list-header i {
  color: var(--accent);
}

.list-block ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.list-block li {
  font-size: 14px;
  line-height: 1.6;
  display: flex;
  gap: 10px;
}

.list-block li::before {
  content: '•';
  font-weight: bold;
}

.strengths li {
  color: #14532d;
}

.strengths li::before {
  color: var(--success);
}

.improvements li {
  color: #7c2d12;
}

.improvements li::before {
  color: var(--accent);
}

/* Question Breakdown */
.q-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

.q-row {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 12px 18px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
  transition: 0.2s;
}

.q-row:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
}

.q-index {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: #eff6ff;
  color: var(--primary);
  font-weight: 900;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.q-label {
  flex: 1;
  font-weight: 700;
  color: var(--text-main);
  font-size: 14px;
}

.q-score-badge {
  font-weight: 800;
  font-size: 13px;
  padding: 4px 12px;
  border-radius: 50px;
}

.q-score-badge.high {
  background: #dcfce7;
  color: #166534;
}

.q-score-badge.mid {
  background: #fef3c7;
  color: #92400e;
}

.q-score-badge.low {
  background: #fee2e2;
  color: #991b1b;
}

/* Actions */
.result-actions {
  display: flex;
  gap: 15px;
  padding: 25px 30px;
  background: var(--bg-gray);
  border-top: 1px solid var(--border);
}

.action-btn {
  flex: 1;
  padding: 12px;
  border-radius: 12px;
  font-weight: 800;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: 0.2s;
}

.action-btn.print {
  background: white;
  border: 2px solid var(--border);
  color: var(--text-main);
}

.action-btn.print:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.action-btn.reset {
  background: #fef2f2;
  border: 2px solid #fef2f2;
  color: var(--danger);
}

.action-btn.reset:hover {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background: #1e293b;
  color: white;
  padding: 14px 24px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  animation: toastIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast i {
  color: var(--accent);
  font-size: 18px;
}

.toast.hidden {
  display: none;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translate(-50%, 20px);
  }

  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

.hidden {
  display: none !important;
}

/* Print */
@media print {

  .navbar,
  .site-header,
  .hero-band,
  .form-col,
  .result-actions {
    display: none !important;
  }

  .main-grid {
    display: block;
    margin: 0;
    padding: 0;
  }

  .results-col {
    position: static;
  }

  .results-card {
    box-shadow: none;
    border: none;
    border-radius: 0;
  }
}