/* =========================================================================
   SEKPASS — design tokens & component styles
   Palette: light-blue/white surfaces, deep navy ink, security-teal accent.
   Display face: Space Grotesk · Body: Inter · Data/mono: JetBrains Mono
   ========================================================================= */

:root {
  --oz-bg: #eef5fb;
  --oz-bg-alt: #e4eff8;
  --oz-surface: #ffffff;
  --oz-surface-soft: #f6fafd;
  --oz-border: #dce7f0;
  --oz-ink: #0b1f33;
  --oz-ink-soft: #4a6178;
  --oz-ink-faint: #7f93a6;

  --oz-accent: #0ea5a0;      /* security teal — primary */
  --oz-accent-ink: #075c59;
  --oz-accent-soft: #e0f6f4;
  --oz-indigo: #4a5fea;      /* secondary interactive accent */
  --oz-indigo-soft: #eaedfd;

  --oz-safe: #16a34a;
  --oz-safe-soft: #e6f7ec;
  --oz-info: #2563eb;
  --oz-info-soft: #e8eefd;
  --oz-warning: #d97706;
  --oz-warning-soft: #fdf1e0;
  --oz-danger: #dc2626;
  --oz-danger-soft: #fdeaea;

  --oz-shadow-sm: 0 1px 2px rgba(11, 31, 51, 0.06);
  --oz-shadow-md: 0 8px 24px rgba(11, 31, 51, 0.08);
  --oz-shadow-lg: 0 20px 48px rgba(11, 31, 51, 0.12);
  --oz-radius: 14px;
  --oz-radius-sm: 8px;

  --oz-font-display: "Space Grotesk", "Inter", sans-serif;
  --oz-font-body: "Inter", system-ui, sans-serif;
  --oz-font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, monospace;

  --oz-panel-dark: #0b1f33;
  --oz-panel-dark-2: #123249;
}

/* ───────────────────────── Themes ───────────────────────── */

[data-theme="midnight"] {
  --oz-bg: #0b1420;
  --oz-bg-alt: #0d1826;
  --oz-surface: #121f2e;
  --oz-surface-soft: #16283a;
  --oz-border: #223447;
  --oz-ink: #eaf3fa;
  --oz-ink-soft: #9fb4c6;
  --oz-ink-faint: #6c8296;
  --oz-accent: #17c2bc;
  --oz-accent-ink: #7ff0ea;
  --oz-accent-soft: #123b39;
  --oz-indigo: #7c8bff;
  --oz-indigo-soft: #1c2150;
  --oz-safe: #22c55e;
  --oz-safe-soft: #123320;
  --oz-info: #60a5fa;
  --oz-info-soft: #132a4d;
  --oz-warning: #f59e0b;
  --oz-warning-soft: #3a2a0d;
  --oz-danger: #f87171;
  --oz-danger-soft: #3a1414;
  --oz-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --oz-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --oz-shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.6);
}

[data-theme="slate"] {
  --oz-bg: #f4f5f7;
  --oz-bg-alt: #eaecf0;
  --oz-surface: #ffffff;
  --oz-surface-soft: #f7f8fa;
  --oz-border: #e1e4e9;
  --oz-ink: #1b1f27;
  --oz-ink-soft: #5b6472;
  --oz-ink-faint: #8a93a1;
  --oz-accent: #4a5fea;
  --oz-accent-ink: #33409e;
  --oz-accent-soft: #eaedfd;
}

[data-theme="contrast"] {
  --oz-bg: #000000;
  --oz-bg-alt: #05070a;
  --oz-surface: #0a0a0a;
  --oz-surface-soft: #121212;
  --oz-border: #3a3a3a;
  --oz-ink: #ffffff;
  --oz-ink-soft: #e2e2e2;
  --oz-ink-faint: #a8a8a8;
  --oz-accent: #ffd60a;
  --oz-accent-ink: #000000;
  --oz-accent-soft: #3a2f00;
  --oz-safe: #4ade80;
  --oz-safe-soft: #052e16;
  --oz-info: #7dd3fc;
  --oz-info-soft: #082f49;
  --oz-warning: #fb923c;
  --oz-warning-soft: #431407;
  --oz-danger: #f87171;
  --oz-danger-soft: #450a0a;
  --oz-panel-dark: #0a0a0a;
  --oz-panel-dark-2: #1a1a1a;
}

body { transition: background-color 0.2s ease, color 0.2s ease; }

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  margin: 0;
  background: linear-gradient(180deg, var(--oz-bg) 0%, var(--oz-bg-alt) 100%);
  color: var(--oz-ink);
  font-family: var(--oz-font-body);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .oz-display {
  font-family: var(--oz-font-display);
  letter-spacing: -0.01em;
}

code, .oz-mono, .oz-password-display, .oz-data {
  font-family: var(--oz-font-mono);
}

a { color: inherit; }

::selection { background: var(--oz-accent); color: #fff; }

:focus-visible {
  outline: 2px solid var(--oz-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ───────────────────────── App shell ───────────────────────── */

.oz-shell {
  display: flex;
  min-height: 100vh;
}

.oz-sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--oz-surface);
  border-right: 1px solid var(--oz-border);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.oz-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 8px;
}

.oz-brand__mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--oz-accent), var(--oz-indigo));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-family: var(--oz-font-display);
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
}

.oz-brand__name {
  font-family: var(--oz-font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--oz-ink);
  line-height: 1.1;
}

.oz-brand__tag {
  font-size: 10.5px;
  color: var(--oz-ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.oz-nav__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.oz-nav__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--oz-radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--oz-ink-soft);
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.oz-nav__link:hover {
  background: var(--oz-surface-soft);
  color: var(--oz-ink);
}

.oz-nav__link--active {
  background: var(--oz-accent-soft);
  color: var(--oz-accent-ink);
  font-weight: 600;
}

.oz-nav__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.oz-sidebar__footer {
  margin-top: auto;
  font-size: 11.5px;
  color: var(--oz-ink-faint);
  padding: 0 8px;
  line-height: 1.5;
}

.oz-topbar {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--oz-surface);
  border-bottom: 1px solid var(--oz-border);
  position: sticky;
  top: 0;
  z-index: 30;
}

.oz-nav__toggle {
  border: 1px solid var(--oz-border);
  background: var(--oz-surface);
  border-radius: var(--oz-radius-sm);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.oz-main {
  flex: 1;
  min-width: 0;
  padding: 32px 40px 64px;
}

@media (max-width: 900px) {
  .oz-sidebar { display: none; }
  .oz-sidebar.oz-nav__menu--open {
    display: flex;
    position: fixed;
    inset: 0 25% 0 0;
    z-index: 40;
    box-shadow: var(--oz-shadow-lg);
  }
  .oz-topbar { display: flex; }
  .oz-main { padding: 20px 16px 48px; }
}

.oz-page-header {
  margin-bottom: 28px;
}

.oz-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--oz-accent-ink);
  background: var(--oz-accent-soft);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.oz-page-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--oz-ink);
  margin: 0 0 6px;
}

.oz-page-sub {
  color: var(--oz-ink-soft);
  font-size: 14.5px;
  max-width: 620px;
  margin: 0;
}

/* ───────────────────────── Cards ───────────────────────── */

.oz-card {
  background: var(--oz-surface);
  border: 1px solid var(--oz-border);
  border-radius: var(--oz-radius);
  box-shadow: var(--oz-shadow-sm);
  padding: 22px;
}

.oz-card__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--oz-ink);
  margin: 0 0 4px;
}

.oz-card__sub {
  font-size: 12.5px;
  color: var(--oz-ink-faint);
  margin: 0 0 16px;
}

/* ───────────────────────── Password input ───────────────────────── */

.oz-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--oz-surface-soft);
  border: 1.5px solid var(--oz-border);
  border-radius: var(--oz-radius);
  padding: 4px 6px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.oz-input-wrap:focus-within {
  border-color: var(--oz-accent);
  box-shadow: 0 0 0 4px var(--oz-accent-soft);
}

.oz-password-input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font-family: var(--oz-font-mono);
  font-size: 17px;
  padding: 12px 10px;
  color: var(--oz-ink);
  letter-spacing: 0.02em;
  min-width: 0;
}

.oz-input-actions {
  display: flex;
  gap: 4px;
  padding-right: 4px;
}

.oz-icon-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  border-radius: var(--oz-radius-sm);
  color: var(--oz-ink-soft);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.oz-icon-btn:hover {
  background: var(--oz-accent-soft);
  color: var(--oz-accent-ink);
}

.oz-icon-btn svg { width: 18px; height: 18px; }

/* ───────────────────────── Heatmap (signature element) ───────────────────────── */

.oz-heatmap {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  font-family: var(--oz-font-mono);
  font-size: 18px;
  padding: 16px;
  background: var(--oz-panel-dark);
  border-radius: var(--oz-radius);
  position: relative;
  overflow: hidden;
  min-height: 62px;
  align-items: center;
}

.oz-heatmap::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--oz-accent), transparent);
  animation: oz-scan 2.4s linear infinite;
  opacity: 0.9;
}

@keyframes oz-scan {
  0% { transform: translateY(-4px); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(58px); opacity: 0; }
}

.oz-heat-seg {
  padding: 3px 2px;
  border-radius: 4px;
  color: #eaf4fb;
  position: relative;
  cursor: default;
  animation: oz-seg-in 0.25s ease both;
}

@keyframes oz-seg-in {
  from { opacity: 0; transform: translateY(3px); }
  to { opacity: 1; transform: translateY(0); }
}

.oz-heat-seg--critical { background: rgba(220, 38, 38, 0.55); box-shadow: inset 0 -2px 0 var(--oz-danger); }
.oz-heat-seg--warning  { background: rgba(217, 119, 6, 0.5); box-shadow: inset 0 -2px 0 var(--oz-warning); }
.oz-heat-seg--info     { background: rgba(37, 99, 235, 0.45); box-shadow: inset 0 -2px 0 var(--oz-info); }
.oz-heat-seg--safe     { background: rgba(14, 165, 160, 0.35); box-shadow: inset 0 -2px 0 var(--oz-accent); }

.oz-heatmap-empty {
  color: #8ea3b8;
  font-family: var(--oz-font-body);
  font-size: 13.5px;
}

.oz-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
  font-size: 12px;
  color: var(--oz-ink-soft);
}

.oz-legend__dot {
  width: 9px; height: 9px; border-radius: 50%; display: inline-block; margin-right: 5px;
}

/* ───────────────────────── Strength meter ───────────────────────── */

.oz-meter-track {
  height: 12px;
  background: var(--oz-border);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}

.oz-meter-fill {
  height: 100%;
  border-radius: 999px;
  width: 0%;
  transition: width 0.5s cubic-bezier(0.22, 1, 0.36, 1), background-color 0.4s ease;
  background: var(--oz-danger);
}

.oz-score-badge {
  font-family: var(--oz-font-display);
  font-weight: 700;
  font-size: 34px;
  color: var(--oz-ink);
  line-height: 1;
}

.oz-level-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

/* ───────────────────────── Checks list ───────────────────────── */

.oz-check-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--oz-border);
}
.oz-check-row:last-child { border-bottom: none; }

.oz-check-icon {
  width: 20px; height: 20px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-top: 1px;
}
.oz-check-icon--pass { background: var(--oz-safe-soft); color: var(--oz-safe); }
.oz-check-icon--fail { background: var(--oz-danger-soft); color: var(--oz-danger); }

.oz-check-label { font-size: 13.5px; font-weight: 600; color: var(--oz-ink); }
.oz-check-detail { font-size: 12px; color: var(--oz-ink-faint); margin-top: 1px; }

/* ───────────────────────── Gauges / entropy ───────────────────────── */

.oz-gauge-wrap { display: flex; align-items: center; gap: 18px; }

.oz-gauge svg { display: block; }

.oz-radar-wrap canvas { max-width: 100%; }

/* ───────────────────────── Buttons ───────────────────────── */

.oz-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 18px;
  border-radius: var(--oz-radius-sm);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.1s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  text-decoration: none;
}
.oz-btn:active { transform: scale(0.97); }

.oz-btn--primary {
  background: var(--oz-accent);
  color: #fff;
  box-shadow: 0 6px 16px rgba(14, 165, 160, 0.28);
}
.oz-btn--primary:hover { background: var(--oz-accent-ink); }

.oz-btn--secondary {
  background: var(--oz-surface);
  border-color: var(--oz-border);
  color: var(--oz-ink);
}
.oz-btn--secondary:hover { border-color: var(--oz-accent); color: var(--oz-accent-ink); }

.oz-btn--ghost {
  background: transparent;
  color: var(--oz-ink-soft);
}
.oz-btn--ghost:hover { background: var(--oz-surface-soft); color: var(--oz-ink); }

.oz-btn--sm { padding: 7px 12px; font-size: 12.5px; }
.oz-btn--block { width: 100%; }
.oz-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ───────────────────────── Toasts ───────────────────────── */

.oz-toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 100;
}

.oz-toast {
  background: var(--oz-panel-dark);
  color: #fff;
  padding: 12px 16px;
  border-radius: var(--oz-radius-sm);
  font-size: 13.5px;
  box-shadow: var(--oz-shadow-lg);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  max-width: 300px;
}
.oz-toast--visible { opacity: 1; transform: translateY(0); }
.oz-toast--success { background: var(--oz-safe); }
.oz-toast--error { background: var(--oz-danger); }

/* ───────────────────────── Misc ───────────────────────── */

.oz-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: var(--oz-border);
  outline: none;
}
.oz-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--oz-accent);
  border: 3px solid #fff;
  box-shadow: 0 0 0 1px var(--oz-accent);
  cursor: pointer;
}
.oz-slider::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--oz-accent);
  border: 3px solid #fff;
  box-shadow: 0 0 0 1px var(--oz-accent);
  cursor: pointer;
}

.oz-toggle {
  position: relative;
  width: 40px; height: 22px;
  border-radius: 999px;
  background: var(--oz-border);
  cursor: pointer;
  transition: background 0.15s ease;
  flex-shrink: 0;
  border: none;
  padding: 0;
}
.oz-toggle::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.18s ease;
  box-shadow: var(--oz-shadow-sm);
}
.oz-toggle[aria-checked="true"] { background: var(--oz-accent); }
.oz-toggle[aria-checked="true"]::after { transform: translateX(18px); }

.oz-option-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 0;
  border-bottom: 1px solid var(--oz-border);
  font-size: 13.5px;
  font-weight: 500;
}
.oz-option-row:last-child { border-bottom: none; }

.oz-fact-bar {
  background: linear-gradient(120deg, var(--oz-panel-dark) 0%, var(--oz-panel-dark-2) 100%);
  color: #dfeef7;
  border-radius: var(--oz-radius);
  padding: 16px 20px;
  font-size: 13.5px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.oz-fact-text { transition: opacity 0.25s ease; }

.oz-skeleton {
  background: linear-gradient(90deg, var(--oz-border) 25%, #edf3f8 37%, var(--oz-border) 63%);
  background-size: 400% 100%;
  animation: oz-shimmer 1.4s ease infinite;
  border-radius: 6px;
}
@keyframes oz-shimmer {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

.oz-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.oz-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) {
  .oz-grid-2, .oz-grid-3 { grid-template-columns: 1fr; }
}

.oz-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.oz-table th { text-align: left; color: var(--oz-ink-faint); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.04em; padding: 8px 10px; border-bottom: 1px solid var(--oz-border); }
.oz-table td { padding: 10px; border-bottom: 1px solid var(--oz-border); color: var(--oz-ink); }
.oz-table tr:last-child td { border-bottom: none; }

.oz-severity-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }

/* ───────────────────────── Theme switcher ───────────────────────── */

.oz-theme-switcher-label {
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oz-ink-faint);
  padding: 0 8px;
  margin-bottom: 8px;
  display: block;
}

[data-theme-switcher] {
  display: flex;
  gap: 8px;
  padding: 0 8px;
  margin-bottom: 4px;
}

.oz-theme-swatch {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  border: 2px solid var(--oz-border);
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  transition: transform 0.12s ease, border-color 0.15s ease;
}
.oz-theme-swatch:hover { transform: translateY(-1px); }
.oz-theme-swatch--active {
  border-color: var(--oz-ink);
  box-shadow: 0 0 0 2px var(--oz-surface), 0 0 0 3px var(--oz-accent);
}

/* ───────────────────────── Level explanation ───────────────────────── */

.oz-level-explain {
  font-size: 12.5px;
  color: var(--oz-ink-soft);
  margin-top: 8px;
  line-height: 1.5;
}

/* ───────────────────────── Personalize panel ───────────────────────── */

.oz-steps-list {
  margin: 0;
  padding-left: 18px;
  font-size: 13px;
  color: var(--oz-ink-soft);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.oz-caution {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: var(--oz-warning-soft);
  color: var(--oz-warning);
  border-radius: var(--oz-radius-sm);
  padding: 10px 12px;
  font-size: 12.5px;
  line-height: 1.5;
}
.oz-caution svg { flex-shrink: 0; margin-top: 1px; }

.oz-segment-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 999px;
  margin: 2px 4px 2px 0;
}
.oz-segment-chip--name { background: var(--oz-info-soft); color: var(--oz-info); }
.oz-segment-chip--date { background: var(--oz-warning-soft); color: var(--oz-warning); }
.oz-segment-chip--number { background: var(--oz-indigo-soft); color: var(--oz-indigo); }
.oz-segment-chip--random { background: var(--oz-safe-soft); color: var(--oz-safe); }

@media print {
  .oz-sidebar, .oz-topbar, .no-print { display: none !important; }
  .oz-main { padding: 0; }
  body { background: #fff; }
}