/* Page-level layouts: login, home, practice, test, bank. */

/* --- Login -------------------------------------------------------------- */

.login {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 100dvh;
  padding: var(--sp-4);
  overflow: hidden;
}

/* Evolution of the original matrix grid: a slow scanline over a tile field. */
.login__grid {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  grid-auto-rows: 64px;
  gap: 1px;
  opacity: 0.5;
  pointer-events: none;
}

.login__tile {
  background: var(--surface-2);
  transition: background 1.4s var(--ease);
  pointer-events: auto;
}

.login__tile:hover {
  background: color-mix(in oklab, var(--accent) 55%, var(--surface-2));
  transition: background 0s;
}

.login__scan {
  position: absolute;
  inset-inline: 0;
  height: 60%;
  background: linear-gradient(
    transparent,
    color-mix(in oklab, var(--accent) 22%, transparent),
    transparent
  );
  animation: scan 7s linear infinite;
  pointer-events: none;
}

@keyframes scan {
  from { transform: translateY(-100%); }
  to   { transform: translateY(240%); }
}

.login__card {
  position: relative;
  z-index: 2;
  width: min(100%, 400px);
  padding: var(--sp-6);
  background: color-mix(in oklab, var(--surface) 88%, transparent);
  backdrop-filter: blur(18px) saturate(150%);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.login__field { position: relative; }

.login__reveal {
  position: absolute;
  inset-inline-end: var(--sp-2);
  inset-block-start: 50%;
  translate: 0 -50%;
  padding: var(--sp-2);
  color: var(--text-faint);
  border-radius: var(--radius-sm);
}

.login__reveal:hover { color: var(--text); background: var(--surface-hover); }

.login__error {
  display: none;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-sm);
  color: var(--incorrect);
}

.login__error.is-visible { display: flex; animation: shake var(--dur-slow) var(--ease-inout); }

/* --- Home --------------------------------------------------------------- */

.home { padding-block: var(--sp-6) var(--sp-8); }

.home__hero {
  display: grid;
  gap: var(--sp-3);
  margin-block-end: var(--sp-6);
}

.home__hero h1 { font-size: var(--text-2xl); }

.home__toolbar {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  align-items: center;
  padding-block: var(--sp-3);
  margin-block-end: var(--sp-4);
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
}

.home__search { flex: 1 1 260px; }

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--sp-3);
}

.cert-card { --provider: var(--accent); padding-block: var(--sp-4) var(--sp-3); }

.cert-card::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  height: 3px;
  background: var(--provider);
  border-radius: var(--radius) var(--radius) 0 0;
  opacity: 0.85;
}

.cert-card__provider {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--provider);
}

.cert-card__name {
  margin-block: var(--sp-2);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.3;
}

.cert-card__meta {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-faint);
}

.cert-card__resume {
  margin-block-start: var(--sp-3);
  padding-block-start: var(--sp-3);
  border-top: 1px dashed var(--border);
  font-size: var(--text-xs);
  color: var(--accent);
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--sp-3);
}

.mode-card { display: grid; gap: var(--sp-2); padding: var(--sp-5); }
.mode-card__icon { color: var(--accent); }
.mode-card__name { font-size: var(--text-md); font-weight: 600; }
.mode-card__desc { font-size: var(--text-sm); color: var(--text-muted); }

.empty {
  padding: var(--sp-7) var(--sp-4);
  text-align: center;
  color: var(--text-muted);
}

/* --- Practice / Test shared -------------------------------------------- */

.quiz {
  display: grid;
  gap: var(--sp-4);
  padding-block: var(--sp-4) var(--sp-8);
}

.quiz__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-3);
}

.quiz__question {
  padding: var(--sp-5);
  font-size: var(--text-md);
  line-height: 1.6;
  white-space: pre-wrap;
  max-width: var(--measure);
}

.quiz__idbadge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin-block-end: var(--sp-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-faint);
}

.quiz__required {
  display: inline-block;
  margin-block-start: var(--sp-3);
  padding: 2px var(--sp-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--flag);
  background: var(--flag-soft);
  border-radius: 99px;
}

.quiz__nav {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding-block-start: var(--sp-2);
}

.quiz__hint {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-xs);
  color: var(--text-faint);
}

.quiz__stage { animation: stage-in var(--dur) var(--ease); }

@keyframes stage-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}

/* --- Score ring --------------------------------------------------------- */

.result { display: grid; gap: var(--sp-5); justify-items: center; padding-block: var(--sp-6); }

.ring { position: relative; width: 190px; height: 190px; }
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring__track { fill: none; stroke: var(--surface-2); stroke-width: 12; }

.ring__value {
  fill: none;
  stroke: var(--accent);
  stroke-width: 12;
  stroke-linecap: round;
  transition: stroke-dashoffset 1.1s var(--ease);
}

.ring.is-pass .ring__value { stroke: var(--correct); }
.ring.is-fail .ring__value { stroke: var(--incorrect); }

.ring__label {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 2px;
}

.ring__num {
  font-family: var(--font-mono);
  font-size: 2.6rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* --- Bank --------------------------------------------------------------- */

.bank { padding-block: var(--sp-4) var(--sp-8); }

.bank__toolbar {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  align-items: center;
  padding-block: var(--sp-3);
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.bank__list { display: grid; gap: var(--sp-2); margin-block-start: var(--sp-4); }

.bank__card { display: grid; gap: var(--sp-2); }

.bank__card p {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.bank__sentinel { height: 1px; }

.answer-list { display: grid; gap: var(--sp-2); }

.answer-item {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: var(--sp-3);
  padding: var(--sp-3);
  font-size: var(--text-sm);
  line-height: 1.55;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--dur) var(--ease);
}

.answer-item.is-correct {
  color: var(--text);
  background: var(--correct-soft);
  border-color: var(--correct);
}

.answer-item.is-chosen-wrong {
  background: var(--incorrect-soft);
  border-color: var(--incorrect);
}

/* --- Responsive --------------------------------------------------------- */

@media (max-width: 640px) {
  .quiz__question { padding: var(--sp-4); }
  .option { grid-template-columns: 24px 1fr auto; padding: var(--sp-3); }
  .home__toolbar, .bank__toolbar { position: static; backdrop-filter: none; }
  .quiz__hint { display: none; }
}