/* SolveMCQ - NEET PG Platform */
:root {
  /* Exam page stays dark; dashboard/login go white */
  --bg: #ffffff;
  --surface: #f8fafc;
  --surface2: #f1f5f9;
  --border: rgba(0,0,0,0.09);
  --accent: #2563eb;
  --accent2: #4f46e5;
  --success: #16a34a;
  --danger: #dc2626;
  --warn: #d97706;
  --text: #0f172a;
  --text2: #475569;
  --text3: #94a3b8;
  --card-shadow: 0 2px 16px rgba(0,0,0,0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.22s cubic-bezier(.4,0,.2,1);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  /* Exam dark theme vars */
  --exam-bg: #0b0f1a;
  --exam-surface: #131929;
  --exam-surface2: #1a2238;
  --exam-border: rgba(255,255,255,0.08);
  --exam-text: #e8eaf0;
  --exam-text2: #94a3b8;
  --exam-text3: #64748b;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  user-select: none;
  -webkit-user-select: none;
}
* { -webkit-user-select: none; user-select: none; }
a { color: inherit; text-decoration: none; }
button { font-family: var(--font-body); cursor: pointer; border: none; outline: none; }
input { font-family: var(--font-body); outline: none; }

/* ===== LOADING SCREEN ===== */
#loading-screen {
  position: fixed; inset: 0; z-index: 9999;
  background: #fff;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 16px;
  transition: opacity 0.4s;
}
#loading-screen .logo-spin {
  width: 56px; height: 56px;
  border: 3px solid #e2e8f0;
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
#loading-screen p { color: var(--text2); font-size: 14px; letter-spacing: 0.05em; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== VIEWS ===== */
.view { display: none; animation: fadeUp 0.3s ease; }
.view.active { display: block; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== LOGIN PAGE ===== */
#view-login {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 50%, #eef2ff 100%);
  padding: 24px;
}
#view-login.active { display: flex; }

.login-wrap {
  width: 100%; max-width: 420px;
  display: flex; flex-direction: column; align-items: center; gap: 28px;
}
.login-brand { text-align: center; }
.login-brand .badge {
  display: inline-block;
  background: linear-gradient(135deg, rgba(37,99,235,0.12), rgba(79,70,229,0.12));
  border: 1px solid rgba(79,70,229,0.25);
  color: var(--accent2);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  padding: 4px 14px; border-radius: 100px; margin-bottom: 12px;
}
.login-brand h1 {
  font-family: var(--font-display);
  font-size: 30px; font-weight: 800;
  color: var(--text);
  line-height: 1.2; margin-bottom: 6px;
}
.login-brand p { color: var(--text2); font-size: 14px; }

.login-card {
  width: 100%;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 4px 32px rgba(0,0,0,0.08);
}
.login-card h2 {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 700;
  margin-bottom: 24px; text-align: center;
  color: var(--text);
}

.field-group { display: flex; flex-direction: column; gap: 16px; margin-bottom: 8px; }
.field-label {
  display: block; font-size: 12px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text2); margin-bottom: 7px;
}
.field-input {
  width: 100%;
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text); font-size: 15px;
  transition: border-color var(--transition);
}
.field-input:focus { border-color: var(--accent); background: #fff; }
.field-input::placeholder { color: var(--text3); }

.field-hint { margin-top: 6px; font-size: 12px; color: var(--text3); font-style: italic; }

.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; font-size: 15px; font-weight: 600;
  padding: 13px; border-radius: var(--radius-sm);
  margin-top: 20px;
  transition: opacity var(--transition), transform var(--transition);
  letter-spacing: 0.02em;
}
.btn-primary:hover { opacity: 0.92; transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.login-err {
  margin-top: 12px; color: var(--danger);
  font-size: 13px; text-align: center; min-height: 20px;
}

/* ===== DASHBOARD ===== */
#view-dashboard { padding: 0; background: var(--bg); }

.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px; height: 60px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-brand {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-right { display: flex; align-items: center; gap: 16px; }
.nav-user { font-size: 13px; color: var(--text2); }
.btn-logout {
  background: transparent;
  border: 1px solid #e2e8f0;
  color: var(--text2); padding: 6px 14px;
  border-radius: 8px; font-size: 13px; font-weight: 500;
  transition: all var(--transition);
}
.btn-logout:hover { border-color: var(--danger); color: var(--danger); }

/* Progress bar in nav */
.nav-progress-wrap {
  display: flex; align-items: center; gap: 10px;
  font-size: 12px; color: var(--text2);
}
.nav-progress-bar {
  width: 120px; height: 8px;
  background: #e2e8f0; border-radius: 100px; overflow: hidden;
}
.nav-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 100px;
  transition: width 0.6s ease;
}

.dashboard-hero {
  padding: 48px 24px 24px;
  text-align: center; max-width: 700px; margin: 0 auto;
}
.dashboard-hero h2 {
  font-family: var(--font-display);
  font-size: 32px; font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
}
.dashboard-hero p { color: var(--text2); font-size: 15px; }

/* Overall progress banner */
.progress-banner {
  max-width: 1100px; margin: 0 auto 8px;
  padding: 0 24px;
}
.progress-banner-inner {
  background: linear-gradient(135deg, #eff6ff, #eef2ff);
  border: 1px solid rgba(37,99,235,0.15);
  border-radius: var(--radius);
  padding: 16px 24px;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.progress-banner-label {
  font-size: 14px; font-weight: 600; color: var(--text);
  white-space: nowrap;
}
.progress-bar-track {
  flex: 1; min-width: 160px; height: 10px;
  background: rgba(37,99,235,0.12); border-radius: 100px; overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 100px;
  transition: width 0.8s cubic-bezier(.4,0,.2,1);
}
.progress-pct {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 800;
  color: var(--accent); white-space: nowrap;
}
.progress-detail { font-size: 12px; color: var(--text2); }

.subjects-grid {
  max-width: 1100px; margin: 0 auto;
  padding: 0 24px 64px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.subject-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius);
  padding: 24px; cursor: pointer;
  transition: all var(--transition);
  position: relative; overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.subject-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--transition);
}
.subject-card:hover { border-color: rgba(37,99,235,0.3); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,0.1); }
.subject-card:hover::before { transform: scaleX(1); }

.card-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(79,70,229,0.08));
  border: 1px solid rgba(79,70,229,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 14px;
}
.card-title { font-family: var(--font-display); font-size: 16px; font-weight: 700; margin-bottom: 6px; color: var(--text); }
.card-meta { color: var(--text2); font-size: 13px; }
.card-progress-bar {
  margin-top: 10px; height: 4px; background: #e2e8f0;
  border-radius: 100px; overflow: hidden;
}
.card-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 100px; transition: width 0.6s ease;
}
.card-progress-label { font-size: 11px; color: var(--text3); margin-top: 4px; }
.card-topics { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  background: #f1f5f9; border: 1px solid #e2e8f0;
  border-radius: 6px; padding: 3px 10px;
  font-size: 11px; color: var(--text2);
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 500;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center; padding: 24px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: #fff; border: 1px solid #e2e8f0;
  border-radius: 16px; padding: 28px;
  width: 100%; max-width: 480px;
  max-height: 85vh; overflow-y: auto;
  animation: modalIn 0.25s ease;
  color: var(--text);
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal h3 { font-family: var(--font-display); font-size: 18px; font-weight: 700; margin-bottom: 20px; color: var(--text); }
.modal-close { float: right; background: transparent; color: var(--text2); font-size: 22px; line-height: 1; margin-top: -4px; }
.modal-close:hover { color: var(--text); }

.select-field {
  width: 100%; background: #f8fafc; border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-sm); padding: 11px 14px;
  color: var(--text); font-size: 14px; font-family: var(--font-body);
  margin-bottom: 16px; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; cursor: pointer;
}
.select-field:focus { border-color: var(--accent); }

.mode-options { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }
.mode-option {
  border: 2px solid #e2e8f0; border-radius: var(--radius);
  padding: 16px; cursor: pointer; transition: all var(--transition);
}
.mode-option:hover { border-color: rgba(37,99,235,0.4); }
.mode-option.selected { border-color: var(--accent); background: rgba(37,99,235,0.04); }
.mode-option .mode-title {
  font-weight: 600; font-size: 15px;
  display: flex; align-items: center; gap: 8px; margin-bottom: 6px; color: var(--text);
}
.mode-dot {
  width: 16px; height: 16px; border: 2px solid #e2e8f0;
  border-radius: 50%; transition: all var(--transition); flex-shrink: 0;
}
.mode-option.selected .mode-dot { border-color: var(--accent); background: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,0.2); }
.mode-bullets { list-style: none; }
.mode-bullets li { color: var(--text2); font-size: 13px; padding: 2px 0; }
.mode-bullets li::before { content: '• '; color: var(--accent); }

.note-box {
  background: rgba(217,119,6,0.06); border: 1px solid rgba(217,119,6,0.2);
  border-radius: var(--radius-sm); padding: 12px 16px;
  color: var(--warn); font-size: 13px; margin-bottom: 16px;
  display: flex; gap: 8px;
}

/* ===== EXAM VIEW — dark theme ===== */
#view-exam {
  display: none;
  background: var(--exam-bg);
  color: var(--exam-text);
  position: relative;
}
#view-exam.active { display: flex; flex-direction: column; min-height: 100vh; }

/* NEET PG diagonal watermark — real exam only */
#view-exam.real-mode::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent 0px,
    transparent 80px,
    rgba(255,255,255,0.018) 80px,
    rgba(255,255,255,0.018) 82px
  );
}
.exam-watermark {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  overflow: hidden;
  display: none;
}
#view-exam.real-mode .exam-watermark { display: block; }
.exam-watermark-inner {
  position: absolute; inset: -50%;
  display: flex; flex-wrap: wrap;
  gap: 60px 80px;
  transform: rotate(-35deg);
  align-content: flex-start;
}
.wm-text {
  font-family: var(--font-display);
  font-size: 28px; font-weight: 900;
  color: rgba(255,255,255,0.04);
  letter-spacing: 0.15em; text-transform: uppercase;
  white-space: nowrap; line-height: 1;
  user-select: none; pointer-events: none;
}

.exam-header {
  position: sticky; top: 0; z-index: 100;
  background: #0d1526;
  border-bottom: 1px solid var(--exam-border);
  padding: 0 20px; height: 56px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.exam-brand { font-family: var(--font-display); font-size: 15px; font-weight: 700; color: var(--exam-text); white-space: nowrap; }

.exam-sections { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; }
.exam-sections::-webkit-scrollbar { display: none; }
.section-tab {
  background: transparent; border: 1px solid var(--exam-border);
  color: var(--exam-text2); padding: 5px 14px;
  border-radius: 6px; font-size: 13px; white-space: nowrap;
  transition: all var(--transition);
}
.section-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.section-tab:disabled { opacity: 0.4; cursor: not-allowed; }

.exam-timer {
  font-family: var(--font-display); font-size: 15px; font-weight: 700;
  color: #22c55e; white-space: nowrap;
  background: rgba(34,197,94,0.08); border: 1px solid rgba(34,197,94,0.2);
  padding: 4px 12px; border-radius: 8px;
}
.exam-timer.warn { color: #f59e0b; background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.2); }
.exam-timer.danger { color: #ef4444; background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.2); animation: pulse 1s ease infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.6} }

.exam-body {
  display: flex; flex: 1; min-height: 0;
  height: calc(100vh - 56px - 60px);
  overflow: hidden; position: relative; z-index: 2;
}

.exam-main {
  flex: 1; padding: 24px; overflow-y: auto;
  max-width: calc(100vw - 280px);
}
/* Test mode: full width (no sidebar) */
.exam-main.full-width { max-width: 100%; }

.exam-sidebar {
  width: 280px; border-left: 1px solid var(--exam-border);
  background: var(--exam-surface); padding: 20px; overflow-y: auto; flex-shrink: 0;
}

/* Question Display */
.q-section-label {
  font-size: 12px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--exam-text3); margin-bottom: 6px;
}
.q-section-name { font-family: var(--font-display); font-size: 16px; font-weight: 700; margin-bottom: 16px; color: var(--exam-text); }
.q-type-badge {
  display: inline-block;
  background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.2);
  color: #ef4444; font-size: 12px; font-weight: 600; letter-spacing: 0.04em;
  padding: 3px 10px; border-radius: 6px; margin-bottom: 12px;
}
.q-number { font-size: 14px; color: var(--exam-text2); margin-bottom: 12px; }
.q-number strong { color: var(--exam-text); font-size: 15px; }

/* Per-question timer bar (test mode) */
.q-timer-bar-wrap {
  width: 100%; height: 5px; background: var(--exam-surface2);
  border-radius: 100px; overflow: hidden; margin-bottom: 14px;
}
.q-timer-bar {
  height: 100%; border-radius: 100px;
  background: linear-gradient(90deg, #22c55e, #16a34a);
  transition: width 1s linear, background 0.5s;
}
.q-timer-bar.warn { background: linear-gradient(90deg, #f59e0b, #d97706); }
.q-timer-bar.danger { background: linear-gradient(90deg, #ef4444, #dc2626); }

.q-text {
  font-size: 15px; line-height: 1.7; color: var(--exam-text);
  margin-bottom: 24px; padding: 18px 20px;
  background: var(--exam-surface); border: 1px solid var(--exam-border);
  border-radius: var(--radius);
}
.q-options { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.q-option {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 14px 18px;
  background: var(--exam-surface); border: 1.5px solid var(--exam-border);
  border-radius: var(--radius); cursor: pointer;
  transition: all var(--transition); font-size: 14px; line-height: 1.5;
  color: var(--exam-text);
}
.q-option:hover { border-color: rgba(59,130,246,0.5); background: rgba(59,130,246,0.06); }
.q-option.selected { border-color: #3b82f6; background: rgba(59,130,246,0.1); }
.q-option.correct { border-color: #22c55e; background: rgba(34,197,94,0.08); }
.q-option.wrong { border-color: #ef4444; background: rgba(239,68,68,0.08); }
.q-option.disabled { cursor: default; }
.opt-label {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--exam-surface2); border: 1.5px solid var(--exam-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600; flex-shrink: 0; color: var(--exam-text);
  transition: all var(--transition);
}
.q-option.selected .opt-label { background: #3b82f6; border-color: #3b82f6; color: #fff; }
.q-option.correct .opt-label { background: #22c55e; border-color: #22c55e; color: #fff; }
.q-option.wrong .opt-label { background: #ef4444; border-color: #ef4444; color: #fff; }

.explanation-box {
  background: rgba(34,197,94,0.05); border: 1px solid rgba(34,197,94,0.2);
  border-radius: var(--radius); padding: 18px 20px;
  margin-top: 16px; font-size: 14px; line-height: 1.7; color: var(--exam-text);
}
.explanation-box .exp-header {
  font-weight: 700; color: #22c55e; margin-bottom: 10px;
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em;
}

/* Exam footer */
.exam-footer {
  padding: 12px 24px;
  background: var(--exam-surface); border-top: 1px solid var(--exam-border);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  position: relative; z-index: 2;
}
.btn-exam {
  padding: 9px 18px; border-radius: 8px;
  font-size: 13px; font-weight: 600; transition: all var(--transition);
}
.btn-mark-review { background: transparent; border: 1.5px solid #f59e0b; color: #f59e0b; }
.btn-mark-review:hover { background: rgba(245,158,11,0.1); }
.btn-clear { background: transparent; border: 1.5px solid var(--exam-border); color: var(--exam-text2); }
.btn-clear:hover { border-color: var(--exam-text2); color: var(--exam-text); }
.btn-save-next {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; border: none; min-width: 130px;
}
.btn-save-next:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-submit-section { background: transparent; border: 1.5px solid #22c55e; color: #22c55e; }
.btn-submit-section:hover { background: rgba(34,197,94,0.1); }

/* Sidebar */
.sidebar-legend { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-bottom: 16px; }
.legend-item { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--exam-text2); }
.legend-dot {
  width: 22px; height: 22px; border-radius: 5px; border: 1.5px solid var(--exam-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 700; flex-shrink: 0;
}
.legend-dot.not-visited { background: var(--exam-surface2); color: var(--exam-text2); }
.legend-dot.not-answered { background: #ef4444; border-color: #ef4444; color: #fff; }
.legend-dot.answered { background: #22c55e; border-color: #22c55e; color: #fff; }
.legend-dot.marked { background: #8b5cf6; border-color: #8b5cf6; color: #fff; }
.legend-dot.ans-marked { background: #7c3aed; border-color: #7c3aed; color: #fff; }

.sidebar-section-label {
  font-weight: 700; font-size: 13px; letter-spacing: 0.04em;
  color: #3b82f6; background: rgba(59,130,246,0.1);
  border-radius: 6px; padding: 8px 12px; margin-bottom: 12px;
}
.q-grid { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.q-bubble {
  width: 34px; height: 34px; border-radius: 6px;
  border: 1.5px solid var(--exam-border); background: var(--exam-surface2);
  color: var(--exam-text2); font-size: 11px; font-weight: 600;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all var(--transition);
}
.q-bubble:hover { border-color: #3b82f6; color: #3b82f6; }
.q-bubble.current { border-color: #3b82f6; background: #3b82f6; color: #fff; }
.q-bubble.answered { background: #22c55e; border-color: #22c55e; color: #fff; }
.q-bubble.not-answered { background: #ef4444; border-color: #ef4444; color: #fff; }
.q-bubble.marked { background: #8b5cf6; border-color: #8b5cf6; color: #fff; }
.q-bubble.ans-marked { background: #7c3aed; border-color: #7c3aed; color: #fff; }

/* ===== RESULTS VIEW ===== */
#view-results { padding: 0; background: var(--bg); }
#view-results.active { display: block; }

.results-header {
  background: linear-gradient(135deg, #eff6ff, #eef2ff);
  border-bottom: 1px solid var(--border);
  padding: 40px 24px 32px; text-align: center;
}
.results-header h2 { font-family: var(--font-display); font-size: 28px; font-weight: 800; margin-bottom: 6px; color: var(--text); }
.results-header p { color: var(--text2); font-size: 15px; }

.score-panel { max-width: 600px; margin: 32px auto; padding: 0 24px; }
.score-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: 16px; padding: 28px; text-align: center; margin-bottom: 16px;
  box-shadow: var(--card-shadow);
}
.score-big {
  font-family: var(--font-display); font-size: 56px; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  line-height: 1; margin-bottom: 4px;
}
.score-label { color: var(--text2); font-size: 14px; }
.score-breakdown { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 20px; }
.score-stat { padding: 14px; border-radius: var(--radius); text-align: center; }
.score-stat.correct { background: rgba(22,163,74,0.06); border: 1px solid rgba(22,163,74,0.2); }
.score-stat.wrong { background: rgba(220,38,38,0.06); border: 1px solid rgba(220,38,38,0.2); }
.score-stat.skip { background: rgba(148,163,184,0.08); border: 1px solid rgba(148,163,184,0.15); }
.stat-val { font-family: var(--font-display); font-size: 26px; font-weight: 800; }
.score-stat.correct .stat-val { color: var(--success); }
.score-stat.wrong .stat-val { color: var(--danger); }
.score-stat.skip .stat-val { color: var(--text2); }
.stat-label { font-size: 12px; color: var(--text2); margin-top: 2px; }

.btn-back-dash {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; width: 100%; padding: 13px;
  border-radius: var(--radius-sm); font-size: 15px; font-weight: 600;
  margin-bottom: 24px; transition: opacity var(--transition);
}
.btn-back-dash:hover { opacity: 0.9; }

.results-list { max-width: 800px; margin: 0 auto; padding: 0 24px 64px; display: flex; flex-direction: column; gap: 16px; }
.result-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: 0 1px 4px rgba(0,0,0,0.04); }
.result-item.correct-item { border-left: 3px solid var(--success); }
.result-item.wrong-item { border-left: 3px solid var(--danger); }
.result-item.skip-item { border-left: 3px solid var(--text3); }

.result-header { padding: 14px 18px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; gap: 12px; }
.result-qnum { font-weight: 700; font-size: 14px; color: var(--text2); flex-shrink: 0; }
.result-status { font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 100px; }
.correct-badge { background: rgba(22,163,74,0.1); color: var(--success); }
.wrong-badge { background: rgba(220,38,38,0.08); color: var(--danger); }
.skip-badge { background: rgba(148,163,184,0.1); color: var(--text2); }

.result-body { padding: 0 18px 16px; border-top: 1px solid var(--border); display: none; }
.result-body.open { display: block; padding-top: 14px; }
.result-q { font-size: 14px; line-height: 1.65; margin-bottom: 14px; color: var(--text); }
.result-options { display: flex; flex-direction: column; gap: 7px; margin-bottom: 14px; }
.result-opt {
  font-size: 13px; padding: 8px 14px; border-radius: 8px;
  border: 1px solid var(--border); display: flex; gap: 10px; align-items: flex-start; color: var(--text);
}
.result-opt.r-correct { border-color: var(--success); background: rgba(22,163,74,0.05); color: var(--success); }
.result-opt.r-wrong { border-color: var(--danger); background: rgba(220,38,38,0.05); color: var(--danger); }
.result-exp {
  font-size: 13px; line-height: 1.65; padding: 12px 14px;
  background: rgba(37,99,235,0.04); border: 1px solid rgba(37,99,235,0.12);
  border-radius: 8px; color: var(--text);
}
.result-exp .exp-title {
  font-weight: 700; color: var(--accent); margin-bottom: 6px;
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em;
}

/* Section expired overlay */
.section-expired-banner {
  position: absolute; top: 0; left: 0; right: 0; z-index: 10;
  background: rgba(220,38,38,0.92); color: #fff;
  text-align: center; padding: 10px;
  font-size: 14px; font-weight: 600; letter-spacing: 0.02em;
  display: none;
}

/* Skeleton */
.skeleton {
  background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
  background-size: 200% 100%; animation: shimmer 1.2s infinite; border-radius: 8px;
}
.exam-main .skeleton {
  background: linear-gradient(90deg, var(--exam-surface) 25%, var(--exam-surface2) 50%, var(--exam-surface) 75%);
  background-size: 200% 100%;
}
@keyframes shimmer { 0%{background-position:200%} 100%{background-position:-200%} }

/* Responsive */
@media (max-width: 768px) {
  .exam-main { max-width: 100%; padding: 16px; }
  .exam-sidebar { display: none; }
  .score-breakdown { grid-template-columns: repeat(3, 1fr); }
  .subjects-grid { grid-template-columns: 1fr; }
  .nav-progress-wrap { display: none; }
}

/* Shield warnings */
.shield-overlay {
  position: fixed; inset: 0; z-index: 99999; background: #fff;
  display: none; align-items: center; justify-content: center;
  flex-direction: column; gap: 16px;
}
.shield-overlay.on { display: flex; }
.shield-overlay h2 { font-family: var(--font-display); font-size: 22px; color: var(--danger); }
.shield-overlay p { color: var(--text2); font-size: 14px; text-align: center; max-width: 340px; }