/* Crucible — Component Styles (Blade v3) */

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

body {
  background-color: var(--blade-bg);
  color: var(--blade-text);
  font-family: var(--blade-font-body);
  font-size: 13px;
  line-height: 1.6;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(at 100% 0%, hsla(0,83%,65%,0.38) 0, transparent 55%),
              radial-gradient(at 80% 20%, hsla(0,83%,55%,0.20) 0, transparent 45%);
  z-index: -1;
  pointer-events: none;
}

[data-theme="light"] body::before {
  background: radial-gradient(at 100% 0%, hsla(0,72%,42%,0.10) 0, transparent 55%),
              radial-gradient(at 80% 20%, hsla(0,72%,42%,0.05) 0, transparent 45%);
}

/* Containers */
.blade-container { max-width: 720px; margin: 0 auto; padding: 0 var(--blade-space-2xl); }
.blade-container--wide { max-width: 1080px; margin: 0 auto; padding: 0 var(--blade-space-2xl); }
.blade-container--full { max-width: 1400px; margin: 0 auto; padding: 0 var(--blade-space-2xl); }

/* Header */
.site-header {
  height: var(--blade-header-height);
  background: var(--blade-surface);
  border-bottom: 1px solid var(--blade-border);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 var(--blade-space-3xl);
  gap: var(--blade-space-3xl);
  backdrop-filter: blur(12px);
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: var(--blade-space-md);
  text-decoration: none;
  flex-shrink: 0;
}

.site-header__divider {
  width: 1px;
  height: 20px;
  background: var(--blade-border);
}

.site-header__wordmark {
  font-family: var(--blade-font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--blade-text);
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--blade-space-xs);
  flex: 1;
}

.site-header__nav a {
  font-family: var(--blade-font-body);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--blade-text-muted);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--blade-radius-input);
  transition: var(--blade-transition-fast);
}

.site-header__nav a:hover { color: var(--blade-text); }

.site-header__nav a.active {
  color: var(--blade-accent);
  background: var(--blade-accent-subtle);
  font-weight: 600;
}

.site-header__right {
  display: flex;
  align-items: center;
  gap: var(--blade-space-md);
  margin-left: auto;
}

.avatar {
  width: 30px;
  height: 30px;
  border-radius: var(--blade-radius-circle);
  background: var(--blade-accent-subtle);
  border: 1px solid var(--blade-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--blade-font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--blade-accent);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--blade-space-sm);
  font-family: var(--blade-font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 10px 16px;
  border-radius: var(--blade-radius-button);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: var(--blade-transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--blade-accent);
  color: var(--blade-accent-on-accent);
  box-shadow: var(--blade-shadow-button);
}

.btn-primary:hover {
  background: var(--blade-accent-deep);
}

.btn-secondary {
  background: var(--blade-surface-raised);
  color: var(--blade-text-muted);
  border: 1px solid var(--blade-border);
}

.btn-secondary:hover {
  color: var(--blade-text);
  border-color: var(--blade-accent-deep);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--blade-border);
  color: var(--blade-accent);
}
.btn-ghost:hover {
  border-color: var(--blade-accent);
  background: var(--blade-surface-raised);
}

.btn-full { width: 100%; justify-content: center; }

/* Cards */
.card {
  background: var(--blade-surface);
  border: 1px solid var(--blade-border);
  border-radius: var(--blade-radius-card);
  padding: var(--blade-space-lg) var(--blade-space-xl);
  transition: var(--blade-transition-layout);
}

.card:hover {
  border-color: var(--blade-accent-deep);
  box-shadow: var(--blade-shadow-glow);
}

.card--panel {
  border-radius: var(--blade-radius-panel);
  padding: var(--blade-space-2xl);
}

/* Section labels */
.section-label {
  font-family: var(--blade-font-body);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blade-text-faint);
  margin-bottom: var(--blade-space-md);
}

.section-heading {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blade-text-secondary);
  border-bottom: 1px solid var(--blade-border);
  padding-bottom: var(--blade-space-sm);
  margin-bottom: var(--blade-space-md);
}

/* Tags / Badges */
.tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--blade-font-mono);
  font-size: 10px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: var(--blade-radius-tag);
}

.tag--accent {
  color: var(--blade-accent);
  background: var(--blade-accent-subtle);
}

.tag--neutral {
  color: var(--blade-text-faint);
  background: var(--blade-surface-raised);
  border: 1px solid var(--blade-border);
}

.tag--critical {
  color: var(--blade-error);
  background: rgba(245, 101, 101, 0.10);
  border: 1px solid rgba(245, 101, 101, 0.20);
}

/* Progress bars */
.progress-track {
  height: 4px;
  background: var(--blade-bar-track);
  border-radius: 2px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.5s ease;
}

.progress-fill--high { background: var(--blade-score-high); }
.progress-fill--mid { background: var(--blade-score-mid); }
.progress-fill--low { background: var(--blade-score-low); }
.progress-fill--min { background: var(--blade-score-min); }
.progress-fill--accent { background: var(--blade-accent); }
.progress-fill--success { background: var(--blade-success); }

/* Score display */
.score-display {
  font-family: var(--blade-font-mono);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
}

.score-high { color: var(--blade-score-high); }
.score-mid { color: var(--blade-score-mid); }
.score-low { color: var(--blade-score-low); }
.score-min { color: var(--blade-text-secondary); }

/* Domain profile bars */
.domain-profile { display: flex; flex-direction: column; gap: var(--blade-space-md); }

.domain-row {
  display: grid;
  grid-template-columns: minmax(160px, max-content) 1fr 44px auto;
  align-items: center;
  gap: var(--blade-space-md);
}

.domain-label,
.domain-row__label {
  font-family: var(--blade-font-body);
  font-size: 12px;
  color: var(--blade-text-secondary);
  white-space: nowrap;
}

.domain-row__bar-wrap {
  height: 4px;
  background: var(--blade-bar-track);
  border-radius: 2px;
  overflow: hidden;
}

.domain-row__bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.5s ease;
}

.domain-pct,
.domain-row__pct {
  font-family: var(--blade-font-mono);
  font-size: 11px;
  font-weight: 700;
  text-align: right;
}

.domain-row__count {
  font-family: var(--blade-font-mono);
  font-size: 11px;
  color: var(--blade-text-muted);
  white-space: nowrap;
}

/* Question card */
.question-card {
  background: var(--blade-surface);
  border: 1px solid var(--blade-border);
  border-radius: var(--blade-radius-panel);
  padding: var(--blade-space-2xl);
}

.question-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--blade-space-lg);
}

.question-meta-left {
  font-family: var(--blade-font-mono);
  font-size: 10px;
  color: var(--blade-text-faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.question-divider {
  height: 1px;
  background: var(--blade-border);
  margin-bottom: var(--blade-space-lg);
}

.question-text {
  font-family: var(--blade-font-body);
  font-size: 15px;
  font-weight: 400;
  color: var(--blade-text);
  line-height: 1.6;
  margin-bottom: var(--blade-space-2xl);
}

/* Answer options */
.answer-options { display: flex; flex-direction: column; gap: var(--blade-space-md); margin-bottom: var(--blade-space-2xl); }

.answer-option {
  display: flex;
  align-items: center;
  gap: var(--blade-space-md);
  background: var(--blade-surface-raised);
  border: 1px solid var(--blade-border);
  border-radius: var(--blade-radius-button);
  padding: 14px 16px;
  cursor: pointer;
  transition: var(--blade-transition-fast);
}

.answer-option:hover {
  border-color: var(--blade-accent-deep);
  box-shadow: var(--blade-shadow-glow);
}

.answer-option--selected {
  border: 1.5px solid var(--blade-border-active);
  box-shadow: var(--blade-shadow-card-active);
  background: var(--blade-accent-subtle);
}

.answer-option--correct {
  border-color: var(--blade-success);
  background: rgba(72, 187, 120, 0.08);
}

.answer-option--incorrect {
  border-color: var(--blade-error);
  background: rgba(245, 101, 101, 0.06);
}

.option-letter {
  font-family: var(--blade-font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--blade-accent);
  min-width: 20px;
  flex-shrink: 0;
}

.answer-option--correct .option-letter { color: var(--blade-success); }
.answer-option--incorrect .option-letter { color: var(--blade-error); }

.option-text {
  font-family: var(--blade-font-body);
  font-size: 13px;
  color: var(--blade-text-secondary);
}

/* Answer breakdown */
.breakdown-section { margin-top: var(--blade-space-3xl); }

.breakdown-card {
  background: var(--blade-surface);
  border: 1px solid var(--blade-border);
  border-radius: var(--blade-radius-button);
  padding: var(--blade-space-lg) var(--blade-space-xl);
  margin-bottom: var(--blade-space-md);
}

.breakdown-card--correct { border-color: var(--blade-success); background: rgba(72, 187, 120, 0.04); }
.breakdown-card--incorrect { border-color: var(--blade-border); }

.breakdown-header {
  display: flex;
  align-items: center;
  gap: var(--blade-space-md);
  margin-bottom: var(--blade-space-md);
}

.breakdown-indicator {
  font-family: var(--blade-font-mono);
  font-size: 12px;
  font-weight: 700;
}

.breakdown-indicator--correct { color: var(--blade-success); }
.breakdown-indicator--incorrect { color: var(--blade-error); }

.breakdown-title {
  font-family: var(--blade-font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--blade-text);
}

.breakdown-body {
  font-family: var(--blade-font-body);
  font-size: 13px;
  color: var(--blade-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--blade-space-md);
}

.breakdown-tags { display: flex; gap: var(--blade-space-sm); flex-wrap: wrap; }

/* Gap card */
.gap-card {
  background: var(--blade-surface);
  border: 1px solid var(--blade-border);
  border-radius: var(--blade-radius-card);
  padding: var(--blade-space-lg) var(--blade-space-xl);
}

.gap-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--blade-space-sm);
}

.gap-card__name {
  font-family: var(--blade-font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--blade-text);
}

.gap-card__meta {
  font-family: var(--blade-font-mono);
  font-size: 11px;
  color: var(--blade-text-muted);
  margin-bottom: var(--blade-space-md);
}

.gap-card__bar { margin-bottom: var(--blade-space-lg); }

.gap-card__actions { display: flex; gap: var(--blade-space-md); }

/* Inputs */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
select {
  width: 100%;
  background: var(--blade-surface-raised);
  border: 1px solid var(--blade-border);
  border-radius: var(--blade-radius-input);
  color: var(--blade-text);
  font-family: var(--blade-font-body);
  font-size: 13px;
  padding: 10px 12px;
  outline: none;
  transition: var(--blade-transition-fast);
}

input:focus, select:focus {
  border-color: var(--blade-accent-deep);
  box-shadow: var(--blade-shadow-glow);
}

input::placeholder { color: var(--blade-text-faint); }

.form-group { margin-bottom: var(--blade-space-lg); }

.form-label {
  display: block;
  font-family: var(--blade-font-body);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blade-text-muted);
  margin-bottom: var(--blade-space-sm);
}

/* Tabs */
.tabs { display: flex; gap: var(--blade-space-xs); border-bottom: 1px solid var(--blade-border); margin-bottom: var(--blade-space-3xl); }

.tab {
  font-family: var(--blade-font-body);
  font-size: 12px;
  font-weight: 400;
  color: var(--blade-text-muted);
  padding: var(--blade-space-sm) var(--blade-space-lg);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: var(--blade-transition-fast);
}

.tab:hover { color: var(--blade-text); }

.tab.active {
  color: var(--blade-accent);
  font-weight: 600;
  border-bottom-color: var(--blade-accent);
}

/* Filter tags */
.filter-bar { display: flex; gap: var(--blade-space-sm); flex-wrap: wrap; margin-bottom: var(--blade-space-2xl); }

.filter-tag {
  font-family: var(--blade-font-mono);
  font-size: 11px;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid var(--blade-border);
  color: var(--blade-text-muted);
  cursor: pointer;
  transition: var(--blade-transition-fast);
  text-decoration: none;
}

.filter-tag:hover { border-color: var(--blade-accent-deep); color: var(--blade-text); }

.filter-tag.active {
  background: var(--blade-filter-active);
  color: var(--blade-filter-active-txt);
  border-color: var(--blade-filter-active);
}

/* Session progress bar (top of quiz) */
.session-progress {
  height: 3px;
  background: var(--blade-bar-track);
  position: sticky;
  top: var(--blade-header-height);
  z-index: 99;
}

/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--blade-space-md);
  margin-bottom: var(--blade-space-3xl);
}

.stat-card {
  background: var(--blade-surface);
  border: 1px solid var(--blade-border);
  border-radius: var(--blade-radius-card);
  padding: var(--blade-space-lg) var(--blade-space-xl);
}

.stat-label {
  font-family: var(--blade-font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blade-text-faint);
  margin-bottom: var(--blade-space-sm);
}

.stat-value {
  font-family: var(--blade-font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
}

/* Record rows */
.record-row {
  display: flex;
  align-items: center;
  gap: var(--blade-space-lg);
  padding: var(--blade-space-md) 0;
  border-bottom: 1px solid var(--blade-border);
}

.record-row:last-child { border-bottom: none; }

.record-date {
  font-family: var(--blade-font-mono);
  font-size: 11px;
  color: var(--blade-text-faint);
  min-width: 80px;
}

.record-score {
  font-family: var(--blade-font-mono);
  font-size: 13px;
  font-weight: 700;
  min-width: 40px;
}

.record-meta {
  font-family: var(--blade-font-mono);
  font-size: 11px;
  color: var(--blade-text-muted);
}

.record-delta {
  font-family: var(--blade-font-mono);
  font-size: 11px;
  margin-left: auto;
}

.delta-up { color: var(--blade-success); }
.delta-down { color: var(--blade-error); }

/* Service card grid */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--blade-space-md);
}

@media (max-width: 768px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .domain-row { grid-template-columns: minmax(100px, max-content) 1fr 36px auto; }
}

@media (max-width: 480px) {
  .service-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .site-header { padding: 0 var(--blade-space-lg); gap: var(--blade-space-md); }
  .blade-container, .blade-container--wide, .blade-container--full { padding: 0 var(--blade-space-lg); }
}

/* Hero section */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.hero__headline {
  font-family: var(--blade-font-body);
  font-size: 36px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--blade-text);
  margin-bottom: var(--blade-space-xl);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.hero__headline span { display: block; }
.hero__headline span:last-child { color: var(--blade-accent); }

.hero__sub {
  font-family: var(--blade-font-body);
  font-size: 14px;
  color: var(--blade-text-secondary);
  line-height: 1.6;
  max-width: 480px;
  margin: 0 auto var(--blade-space-3xl);
}

.hero__cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--blade-space-lg);
  margin-bottom: var(--blade-space-3xl);
  flex-wrap: wrap;
}

.hero__free {
  font-family: var(--blade-font-body);
  font-size: 11px;
  color: var(--blade-text-faint);
}

.trust-bar {
  font-family: var(--blade-font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blade-text-faint);
}

/* Feature cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--blade-space-lg);
  margin-bottom: 80px;
}

@media (max-width: 768px) {
  .feature-grid { grid-template-columns: 1fr; }
  .hero__headline { font-size: 28px; }
}

.feature-card {
  background: var(--blade-surface);
  border: 1px solid var(--blade-border);
  border-radius: var(--blade-radius-card);
  padding: var(--blade-space-2xl);
}

.feature-card__num {
  font-family: var(--blade-font-mono);
  font-size: 10px;
  color: var(--blade-accent);
  margin-bottom: var(--blade-space-md);
}

.feature-card__title {
  font-family: var(--blade-font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--blade-text);
  margin-bottom: var(--blade-space-md);
}

.feature-card__body {
  font-family: var(--blade-font-body);
  font-size: 13px;
  color: var(--blade-text-secondary);
  line-height: 1.6;
}

/* Breadcrumb */
.breadcrumb {
  font-family: var(--blade-font-mono);
  font-size: 11px;
  color: var(--blade-text-faint);
  margin-bottom: var(--blade-space-2xl);
}

.breadcrumb a { color: var(--blade-text-faint); text-decoration: none; }
.breadcrumb a:hover { color: var(--blade-accent); }
.breadcrumb span { margin: 0 6px; }

/* Page layout */
.page-main { padding: var(--blade-space-3xl) 0 80px; }

/* Auth centered form */
.auth-wrap {
  min-height: calc(100vh - var(--blade-header-height));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--blade-space-4xl) var(--blade-space-2xl);
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--blade-surface);
  border: 1px solid var(--blade-border);
  border-radius: var(--blade-radius-panel);
  padding: var(--blade-space-4xl) var(--blade-space-3xl);
}

.auth-mark {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--blade-space-md);
  margin-bottom: var(--blade-space-3xl);
}

.auth-mark__wordmark {
  font-family: var(--blade-font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--blade-text);
}

.auth-title {
  font-family: var(--blade-font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--blade-text);
  margin-bottom: var(--blade-space-3xl);
}

.auth-footer {
  text-align: center;
  margin-top: var(--blade-space-xl);
  font-size: 11px;
  color: var(--blade-text-faint);
}

.auth-footer a { color: var(--blade-accent); text-decoration: none; }

/* Footer */
.site-footer {
  padding: var(--blade-space-3xl) 0;
  text-align: center;
  font-family: var(--blade-font-mono);
  font-size: 10px;
  color: var(--blade-text-faint);
  letter-spacing: 0.08em;
  border-top: 1px solid var(--blade-border);
}

/* Question submit row */
.question-submit { display: flex; justify-content: flex-end; }

/* Animations */
@keyframes blade-emerge {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.emerge { animation: blade-emerge 400ms ease both; }

.error-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  gap: 12px;
}

.error-msg-text {
  font-family: var(--blade-font-body);
  font-size: 14px;
  color: var(--blade-text-muted);
  margin: 0;
}

.error-back-link {
  font-family: var(--blade-font-body);
  font-size: 14px;
  color: var(--blade-accent);
  text-decoration: none;
}

.error-back-link:hover {
  text-decoration: underline;
}

/* Service links in explanations */
.service-link { color: var(--blade-accent); text-decoration: underline; }
.service-link:hover { color: var(--blade-text); }

/* Study content custom properties */
:root {
  --crucible-study-body: 15px;
  --crucible-study-heading: 1.25rem;
  --crucible-study-subheading: 1.05rem;
  --crucible-study-code: 13px;
}