/* ═══════════════════════════════════════════════════════
   A10 Networks — Cybersecurity Skills Assessment
   Brand: Deep navy #0D1B5E, magenta accent #CC007A
   ═══════════════════════════════════════════════════════ */

:root {
  --a10-navy:       #0D1B5E;
  --a10-navy-mid:   #1A2F7A;
  --a10-navy-light: #2A4296;
  --a10-blue:       #1565C0;
  --a10-red:        #CC007A;
  --a10-red-hover:  #A80064;
  --a10-white:      #FFFFFF;
  --a10-bg:         #F0F2F5;
  --a10-border:     #D1D9E8;
  --a10-gray:       #6B7A99;
  --a10-text:       #1A2340;
  --a10-success:    #1E8449;
  --a10-amber:      #C87A00;
  --sidebar-width:  265px;
  --navbar-height:  60px;
}

/* ── Force light theme ── */
html { color-scheme: light !important; }

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

html, body {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  background-color: var(--a10-bg) !important;
  color: var(--a10-text) !important;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.95rem;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--a10-blue); text-decoration: none; }
a:hover { color: var(--a10-navy); text-decoration: underline; }

/* ════════════════════════════════════════════════════════
   NAVBAR — matches a10networks.com: deep navy, white A10
   ════════════════════════════════════════════════════════ */

.a10-navbar,
.login-navbar,
.admin-navbar,
.assessment-navbar {
  height: var(--navbar-height);
  background: var(--a10-navy);
  border-bottom: 3px solid var(--a10-red);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.75rem;
  z-index: 1000;
}

/* A10 logo — white bold "A10" + lighter "Networks" */
.a10-logo {
  display: flex;
  align-items: center;
  gap: 0;
  text-decoration: none !important;
  flex-shrink: 0;
  line-height: 1;
}

.a10-logo-a10 {
  font-size: 1.6rem;
  font-weight: 900;
  color: #FFFFFF;
  letter-spacing: -0.03em;
  line-height: 1;
  font-style: italic;
}

.a10-logo-networks {
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.01em;
  margin-left: 0.4rem;
  line-height: 1;
  align-self: flex-end;
  padding-bottom: 2px;
}

.a10-navbar-title {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.01em;
}

.a10-navbar-divider {
  width: 1px;
  height: 22px;
  background: rgba(255,255,255,0.2);
  flex-shrink: 0;
  margin: 0 0.75rem;
}

.a10-navbar-confidential {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
}

.a10-timer {
  font-family: "SF Mono", "Fira Code", Consolas, monospace;
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 6px;
  padding: 3px 12px;
  letter-spacing: 0.06em;
}

.a10-navbar-candidate {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.8);
  font-weight: 500;
}

.a10-navbar-logout {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  padding: 4px 10px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 5px;
  transition: all 0.15s;
}
.a10-navbar-logout:hover {
  color: #fff;
  border-color: rgba(255,255,255,0.5);
  background: rgba(255,255,255,0.08);
  text-decoration: none;
}

/* ════════════════════════════════════════════════════════
   BUTTONS
   ════════════════════════════════════════════════════════ */

.btn-a10-primary {
  background-color: var(--a10-red);
  border-color: var(--a10-red);
  color: #fff;
  font-weight: 700;
  border-radius: 6px;
  transition: background-color 0.15s, transform 0.1s;
}
.btn-a10-primary:hover, .btn-a10-primary:focus {
  background-color: var(--a10-red-hover);
  border-color: var(--a10-red-hover);
  color: #fff;
  transform: translateY(-1px);
}
.btn-a10-primary:active { transform: none; }

.btn-a10-navy {
  background-color: var(--a10-navy);
  border-color: var(--a10-navy);
  color: #fff;
  font-weight: 600;
  border-radius: 6px;
  transition: background-color 0.15s;
}
.btn-a10-navy:hover {
  background-color: var(--a10-navy-mid);
  border-color: var(--a10-navy-mid);
  color: #fff;
}

.btn-a10-outline {
  background: transparent;
  border: 1.5px solid var(--a10-navy);
  color: var(--a10-navy);
  font-weight: 600;
  border-radius: 6px;
  transition: all 0.15s;
}
.btn-a10-outline:hover {
  background: var(--a10-navy);
  color: #fff;
}

/* ════════════════════════════════════════════════════════
   LOGIN PAGE
   ════════════════════════════════════════════════════════ */

.login-page {
  background: var(--a10-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.login-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1rem;
  width: 100%;
}

.login-card {
  width: 100%;
  max-width: 480px;
  background: #fff;
  border: 1px solid var(--a10-border);
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(13,27,94,0.13);
  overflow: hidden;
}

.login-card-header {
  background: var(--a10-navy);
  padding: 2rem 2rem 1.75rem;
  text-align: center;
  position: relative;
}

/* Subtle circuit-board dot pattern on header */
.login-card-header::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.login-card-header .a10-eyebrow {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 0.6rem;
  position: relative;
  z-index: 1;
}

.login-card-header h1 {
  color: #fff;
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
  line-height: 1.2;
  position: relative;
  z-index: 1;
}

.login-card-header p {
  color: rgba(255,255,255,0.55);
  font-size: 0.85rem;
  margin: 0;
  position: relative;
  z-index: 1;
}

.login-card-body {
  padding: 1.75rem 2rem 2rem;
  background: #fff;
}

.login-card-body .form-label {
  color: var(--a10-text);
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 0.35rem;
}

.login-card-body .form-control {
  background: #fff !important;
  border: 1.5px solid var(--a10-border);
  color: var(--a10-text) !important;
  border-radius: 6px;
  font-size: 0.95rem;
  height: 44px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.login-card-body .form-control:focus {
  border-color: var(--a10-navy-light);
  box-shadow: 0 0 0 3px rgba(26,47,122,0.12);
  outline: none;
  background: #fff !important;
  color: var(--a10-text) !important;
}
.login-card-body .form-control::placeholder {
  color: #AAB4C8;
}

.login-info-box {
  background: #EEF2FA;
  border: 1px solid #C8D3EC;
  border-radius: 7px;
  padding: 0.85rem 1rem;
  font-size: 0.84rem;
  color: var(--a10-text);
  margin-top: 1rem;
}
.login-info-box strong { color: var(--a10-navy); }

.login-resume-hint {
  color: var(--a10-gray);
  font-size: 0.8rem;
  text-align: center;
  margin-top: 0.75rem;
}

.login-footer {
  padding: 1rem;
  text-align: center;
  color: var(--a10-gray);
  font-size: 0.77rem;
  border-top: 1px solid var(--a10-border);
}

/* ════════════════════════════════════════════════════════
   ASSESSMENT LAYOUT
   ════════════════════════════════════════════════════════ */

.assessment-page { min-height: 100vh; background: var(--a10-bg); }

.assessment-navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
}

/* ── Sidebar ── */
.question-sidebar {
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: #fff;
  border-right: 1px solid var(--a10-border);
  display: flex;
  flex-direction: column;
  z-index: 900;
  overflow: hidden;
}

.sidebar-header {
  padding: 0.85rem 1rem 0.65rem;
  border-bottom: 1px solid var(--a10-border);
  flex-shrink: 0;
}

.sidebar-header-label {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--a10-navy);
}

.sidebar-progress-text {
  font-size: 0.77rem;
  color: var(--a10-gray);
  margin-top: 0.2rem;
}

.sidebar-list {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0.55rem 0.9rem;
  color: var(--a10-gray);
  border-bottom: 1px solid rgba(209,217,232,0.5);
  border-left: 3px solid transparent;
  text-decoration: none !important;
  font-size: 0.82rem;
  line-height: 1.3;
  transition: background 0.1s, color 0.1s, border-left-color 0.1s;
}
.sidebar-item:hover { background: #EEF2FA; color: var(--a10-navy); }
.sidebar-item.active {
  background: rgba(13,27,94,0.06);
  border-left-color: var(--a10-red);
  color: var(--a10-navy);
  font-weight: 600;
}
.sidebar-item.answered { color: var(--a10-text); }

.q-num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  background: var(--a10-bg);
  border: 1px solid var(--a10-border);
  border-radius: 50%;
  font-size: 0.68rem;
  font-weight: 800;
  color: var(--a10-navy);
  flex-shrink: 0;
}
.sidebar-item.active .q-num-badge {
  background: var(--a10-red);
  border-color: var(--a10-red);
  color: #fff;
}
.sidebar-item.answered .q-num-badge {
  background: rgba(30,132,73,0.1);
  border-color: rgba(30,132,73,0.3);
  color: var(--a10-success);
}

.q-title-text {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-footer {
  border-top: 1px solid var(--a10-border);
  padding: 0.75rem 1rem;
  background: #fff;
  flex-shrink: 0;
}

.sidebar-progress-bar-track {
  height: 5px;
  background: var(--a10-border);
  border-radius: 3px;
  overflow: hidden;
}
.sidebar-progress-bar-fill {
  height: 100%;
  background: var(--a10-red);
  border-radius: 3px;
  transition: width 0.3s ease;
}

/* ── Main content ── */
.question-main {
  margin-left: var(--sidebar-width);
  margin-top: var(--navbar-height);
  min-height: calc(100vh - var(--navbar-height));
  background: var(--a10-bg);
  padding: 2rem 2rem 7rem;
}
.question-content-wrapper { max-width: 860px; margin: 0 auto; }

/* ── Breadcrumb ── */
.a10-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--a10-gray);
  margin-bottom: 1.25rem;
}
.a10-breadcrumb-sep { color: var(--a10-border); }

/* ── Section badge ── */
.section-badge {
  display: inline-block;
  background: var(--a10-navy);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

/* ── Cards ── */
.a10-card {
  background: #fff;
  border: 1px solid var(--a10-border);
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(13,27,94,0.06);
  margin-bottom: 1.25rem;
}
.a10-card-header {
  padding: 0.8rem 1.25rem;
  border-bottom: 1px solid var(--a10-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.a10-card-header-label {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--a10-navy);
}
.a10-card-body { padding: 1.25rem; }

/* ── Question header ── */
.question-header-card {
  background: #fff;
  border: 1px solid var(--a10-border);
  border-left: 4px solid var(--a10-navy);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 1px 4px rgba(13,27,94,0.06);
}
.question-title {
  font-size: 1.3rem;
  color: var(--a10-navy);
  font-weight: 700;
  line-height: 1.3;
  margin: 0.5rem 0 0.25rem;
}
.question-display-num {
  font-size: 0.8rem;
  color: var(--a10-gray);
}

/* ── Scenario card ── */
.scenario-card {
  background: #fff;
  border: 1px solid var(--a10-border);
  border-radius: 8px;
  margin-bottom: 1.25rem;
  box-shadow: 0 1px 4px rgba(13,27,94,0.06);
  overflow: hidden;
}
.scenario-card-header {
  background: var(--a10-navy);
  padding: 0.6rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.scenario-card-header span {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: rgba(255,255,255,0.8);
}
.scenario-card-body {
  padding: 1.25rem;
  color: var(--a10-text);
  line-height: 1.75;
}

/* ── Code block ── */
.code-wrapper {
  position: relative;
  border-radius: 7px;
  overflow: hidden;
  border: 1px solid #1A2F7A;
  border-left: 4px solid var(--a10-red);
  margin-top: 0.75rem;
}
.code-wrapper pre {
  margin: 0;
  padding: 1.25rem;
  background: var(--a10-navy) !important;
  font-size: 0.81rem;
  max-height: 440px;
  overflow: auto;
}
.code-wrapper pre code {
  font-family: "SF Mono", "Fira Code", Consolas, monospace;
  font-size: 0.81rem;
  white-space: pre;
  background: transparent !important;
}
.copy-btn {
  position: absolute;
  top: 8px; right: 8px;
  z-index: 10;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.55);
  padding: 3px 8px;
  font-size: 0.73rem;
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.2s;
  cursor: pointer;
}
.code-wrapper:hover .copy-btn { opacity: 1; }
.copy-btn:hover { background: rgba(255,255,255,0.18); color: #fff; }

/* ── Sub-questions ── */
.subquestions-list { padding-left: 1.5rem; margin: 0; }
.subq-item {
  margin-bottom: 0.9rem;
  line-height: 1.75;
  color: var(--a10-text);
  padding-left: 0.25rem;
}
.subq-item::marker { color: var(--a10-red); font-weight: 700; }

/* ── Bonus ── */
.bonus-card {
  background: #fff;
  border: 1px solid var(--a10-border);
  border-left: 4px solid var(--a10-amber);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
}
.bonus-label {
  font-size: 0.73rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--a10-amber);
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* ── Must include ── */
.must-include-card {
  background: #EEF2FA;
  border: 1px solid #C8D3EC;
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
}
.must-include-label {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--a10-navy);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.6rem;
}
.must-include-list { list-style: none; padding: 0; margin: 0; }
.must-include-list li {
  font-size: 0.85rem;
  color: var(--a10-text);
  padding: 0.2rem 0;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  line-height: 1.5;
}
.must-include-list li::before {
  content: "\F272";
  font-family: "bootstrap-icons";
  color: var(--a10-navy-light);
  font-size: 0.85rem;
  flex-shrink: 0;
  margin-top: 0.05rem;
}

/* ── Answer card ── */
.answer-card {
  background: #fff;
  border: 1px solid var(--a10-border);
  border-radius: 8px;
  margin-bottom: 1.25rem;
  overflow: hidden;
}
.answer-card-header {
  padding: 0.7rem 1.25rem;
  border-bottom: 1px solid var(--a10-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #FAFBFE;
}
.answer-card-title {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--a10-navy);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.answer-card-body { padding: 1rem; }
.answer-textarea {
  width: 100%;
  background: #fff !important;
  border: 1.5px solid var(--a10-border);
  color: var(--a10-text) !important;
  border-radius: 6px;
  font-size: 0.92rem;
  line-height: 1.75;
  resize: vertical;
  min-height: 380px;
  padding: 1rem;
  display: block;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.answer-textarea:focus {
  border-color: var(--a10-navy-light);
  box-shadow: 0 0 0 3px rgba(26,47,122,0.1);
  outline: none;
  background: #fff !important;
  color: var(--a10-text) !important;
}
.answer-textarea::placeholder { color: #AAB4C8; }
.char-count {
  font-size: 0.74rem;
  color: var(--a10-gray);
  text-align: right;
  padding-top: 0.35rem;
}

/* ── Autosave ── */
.autosave-indicator {
  font-size: 0.77rem;
  color: var(--a10-gray);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.autosave-indicator.saving { color: var(--a10-amber) !important; }
.autosave-indicator.saved  { color: var(--a10-success) !important; }
.autosave-indicator.error  { color: var(--a10-red) !important; }

/* ── Sticky nav footer ── */
.nav-footer {
  position: fixed;
  bottom: 0;
  left: var(--sidebar-width);
  right: 0;
  background: #fff;
  border-top: 1px solid var(--a10-border);
  box-shadow: 0 -4px 16px rgba(13,27,94,0.09);
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 800;
}
.nav-footer-center {
  font-size: 0.81rem;
  color: var(--a10-gray);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.1rem;
}

/* ════════════════════════════════════════════════════════
   COMPLETE PAGE
   ════════════════════════════════════════════════════════ */

.complete-page {
  background: var(--a10-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.complete-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1rem;
  width: 100%;
}
.complete-card {
  background: #fff;
  border: 1px solid var(--a10-border);
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(13,27,94,0.1);
  width: 100%;
  max-width: 540px;
  text-align: center;
  padding: 3rem 2rem;
}
.complete-icon {
  width: 80px; height: 80px;
  background: rgba(30,132,73,0.08);
  border: 3px solid var(--a10-success);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2.25rem;
  color: var(--a10-success);
}
.complete-heading { font-size: 1.75rem; font-weight: 700; color: var(--a10-navy); margin-bottom: 0.5rem; }
.complete-subtext { color: var(--a10-gray); font-size: 1rem; margin-bottom: 2rem; }
.complete-subtext strong { color: var(--a10-navy); }
.complete-stats { display: flex; justify-content: center; gap: 1.5rem; margin-bottom: 2rem; flex-wrap: wrap; }
.complete-stat-card {
  background: var(--a10-bg);
  border: 1px solid var(--a10-border);
  border-radius: 8px;
  padding: 1rem 1.5rem;
  min-width: 130px;
}
.complete-stat-value {
  font-size: 1.6rem; font-weight: 700; color: var(--a10-navy);
  font-family: "SF Mono", Consolas, monospace;
}
.complete-stat-label {
  font-size: 0.76rem; color: var(--a10-gray);
  text-transform: uppercase; letter-spacing: 0.05em; margin-top: 0.2rem;
}
.complete-info-box {
  background: var(--a10-navy);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 1.5rem;
  text-align: left;
}
.complete-thank-you { color: var(--a10-gray); font-style: italic; font-size: 0.9rem; }

/* ════════════════════════════════════════════════════════
   ADMIN PAGE
   ════════════════════════════════════════════════════════ */

.admin-page { background: var(--a10-bg); min-height: 100vh; }
.admin-badge {
  display: inline-block;
  background: var(--a10-red);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.admin-content { padding: 2rem 1.5rem; }

.admin-stat-card {
  background: #fff;
  border: 1px solid var(--a10-border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  text-align: center;
}
.admin-stat-num { font-size: 2rem; font-weight: 700; line-height: 1; }
.admin-stat-num.navy  { color: var(--a10-navy); }
.admin-stat-num.red   { color: var(--a10-red); }
.admin-stat-num.green { color: var(--a10-success); }
.admin-stat-num.amber { color: var(--a10-amber); }
.admin-stat-label {
  font-size: 0.77rem; color: var(--a10-gray);
  text-transform: uppercase; letter-spacing: 0.05em; margin-top: 0.3rem;
}

.candidate-card {
  background: #fff;
  border: 1px solid var(--a10-border);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 0.85rem;
}
.candidate-card-header {
  padding: 1rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between;
  cursor: pointer;
  transition: background 0.1s;
  border-bottom: 1px solid transparent;
}
.candidate-card-header:hover { background: #F8FAFC; }
.candidate-card-header.open { border-bottom-color: var(--a10-border); background: #F8FAFC; }
.candidate-avatar {
  width: 36px; height: 36px;
  background: var(--a10-navy); color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.95rem; flex-shrink: 0;
}
.candidate-name { font-weight: 600; color: var(--a10-navy); font-size: 0.93rem; }
.candidate-email { font-size: 0.78rem; color: var(--a10-gray); }
.collapse-icon { transition: transform 0.2s; color: var(--a10-gray); }

.admin-table { font-size: 0.83rem; color: var(--a10-text); width: 100%; }
.admin-table thead th {
  background: #EEF2FA; color: var(--a10-navy);
  border-color: var(--a10-border);
  font-size: 0.72rem; text-transform: uppercase;
  letter-spacing: 0.06em; font-weight: 800;
  padding: 0.5rem 0.75rem; white-space: nowrap;
}
.admin-table tbody td {
  border-color: var(--a10-border);
  padding: 0.5rem 0.75rem; vertical-align: middle;
}
.admin-table tbody tr:hover { background: #F8FAFC; }

.status-badge-completed {
  display: inline-block;
  background: rgba(30,132,73,0.1); color: #1E8449;
  border: 1px solid rgba(30,132,73,0.25);
  font-size: 0.7rem; font-weight: 700;
  padding: 2px 8px; border-radius: 12px;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.status-badge-inprogress {
  display: inline-block;
  background: rgba(200,122,0,0.1); color: #8B5500;
  border: 1px solid rgba(200,122,0,0.25);
  font-size: 0.7rem; font-weight: 700;
  padding: 2px 8px; border-radius: 12px;
  text-transform: uppercase; letter-spacing: 0.04em;
}

.event-badge-enter {
  display: inline-block; background: rgba(13,27,94,0.08);
  color: var(--a10-navy); font-size: 0.68rem; font-weight: 600;
  padding: 2px 7px; border-radius: 10px;
}
.event-badge-leave {
  display: inline-block; background: rgba(107,122,153,0.1);
  color: var(--a10-gray); font-size: 0.68rem; font-weight: 600;
  padding: 2px 7px; border-radius: 10px;
}

.answer-block { border: 1px solid var(--a10-border); border-radius: 7px; overflow: hidden; margin-bottom: 1.25rem; }
.answer-block-header {
  background: #EEF2FA; padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--a10-border);
  display: flex; align-items: center; gap: 0.5rem;
}
.answer-block-header .q-badge {
  display: inline-block; background: var(--a10-red); color: #fff;
  font-size: 0.7rem; font-weight: 700; padding: 2px 8px; border-radius: 10px;
}
.answer-block-header .q-title { font-weight: 600; color: var(--a10-navy); font-size: 0.87rem; }
.answer-block-header .q-time { font-size: 0.76rem; color: var(--a10-gray); margin-left: auto; }
.answer-text-display {
  padding: 1rem; white-space: pre-wrap;
  font-size: 0.85rem; color: var(--a10-text);
  line-height: 1.7; max-height: 420px; overflow-y: auto;
  background: #fff;
}
.collapse-section-title {
  font-size: 0.7rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--a10-navy); display: flex; align-items: center;
  gap: 0.4rem; margin-bottom: 0.75rem;
}

/* ── Bootstrap overrides ── */
.alert-danger {
  background: rgba(226,35,26,0.07) !important;
  border: 1px solid rgba(226,35,26,0.22) !important;
  color: #8C1510 !important;
}
.form-text { color: var(--a10-gray) !important; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--a10-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--a10-gray); }

/* ── Utilities ── */
.text-a10-navy  { color: var(--a10-navy) !important; }
.text-a10-red   { color: var(--a10-red) !important; }
.text-a10-gray  { color: var(--a10-gray) !important; }
.bg-a10-navy    { background-color: var(--a10-navy) !important; }

/* ── Responsive ── */
@media (max-width: 991.98px) {
  .question-sidebar { display: none; }
  .question-main { margin-left: 0; }
  .nav-footer { left: 0; }
}

/* ════════════════════════════════════════════════════════
   CODE EDITOR (CodeMirror + runner UI)
   ════════════════════════════════════════════════════════ */

/* CodeMirror overrides */
.CodeMirror {
  font-family: "SF Mono", "Fira Code", "Cascadia Code", Consolas, monospace;
  font-size: 0.87rem;
  line-height: 1.65;
  height: 540px;
  border-radius: 0;
}
.CodeMirror-scroll { padding-bottom: 0; }

/* Toolbar row below editor */
.code-editor-toolbar {
  background: #fafbfe;
  border: 1px solid var(--a10-border);
  border-top: none;
  padding: 0.55rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  border-radius: 0 0 8px 8px;
}

.btn-run-code {
  background: #1a7f37;
  color: #fff;
  border: none;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 5px 15px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-run-code:hover  { background: #156d2f; color: #fff; }
.btn-run-code:disabled { opacity: 0.65; cursor: default; }

.btn-run-tests {
  background: var(--a10-navy-mid);
  color: #fff;
  border: none;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 5px 15px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-run-tests:hover  { background: var(--a10-navy); color: #fff; }
.btn-run-tests:disabled { opacity: 0.65; cursor: default; }

/* Terminal output panel */
.code-output-card {
  background: #1e1e2e;
  border: 1px solid #333;
  border-radius: 8px;
  margin-bottom: 1.25rem;
  overflow: hidden;
}
.code-output-header {
  background: rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: 0.45rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.65);
  font-size: 0.78rem;
}
.code-output-body {
  padding: 1rem 1.1rem;
  max-height: 360px;
  overflow-y: auto;
}
.code-output-stdout {
  color: #d4d4d4;
  font-family: "SF Mono", Consolas, monospace;
  font-size: 0.83rem;
  line-height: 1.6;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-all;
}
.code-output-stderr {
  color: #ff7b72;
  font-family: "SF Mono", Consolas, monospace;
  font-size: 0.83rem;
  line-height: 1.6;
  margin: 0.75rem 0 0;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Test results panel */
.test-results-card {
  background: #fff;
  border: 1px solid var(--a10-border);
  border-radius: 8px;
  margin-bottom: 1.25rem;
  overflow: hidden;
}
.test-results-header {
  background: #f8fafc;
  border-bottom: 1px solid var(--a10-border);
  padding: 0.55rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--a10-navy);
}
.test-results-list { padding: 0.25rem 0; }

.test-result-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.6rem 1.25rem;
  border-bottom: 1px solid rgba(209,217,232,0.35);
}
.test-result-item:last-child { border-bottom: none; }
.test-result-icon { font-size: 1rem; flex-shrink: 0; padding-top: 1px; }
.test-result-info { min-width: 0; }
.test-result-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--a10-text);
  line-height: 1.3;
}
.test-result-item.pass .test-result-name { color: #1a7f37; }
.test-result-item.fail .test-result-name { color: #8C1510; }
.test-result-desc {
  font-size: 0.77rem;
  color: var(--a10-gray);
  margin-top: 1px;
  line-height: 1.4;
}
.test-result-detail {
  font-family: "SF Mono", Consolas, monospace;
  font-size: 0.73rem;
  color: var(--a10-gray);
  margin-top: 3px;
}

/* Mobile sidebar toggle */
.mobile-sidebar-toggle {
  position: fixed;
  bottom: 80px;
  left: 16px;
  z-index: 1100;
  background: var(--a10-navy);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(13,27,94,0.3);
}