/* =========================================================
   Династия · Учебный портал — Architectural Editorial
   ========================================================= */

:root {
  --ink:        #07101e;
  --ink-2:      #0c1729;
  --graphite:   #141a24;
  --graphite-2: #1c2330;
  --graphite-3: #262e3c;
  --hairline:   rgba(232, 226, 207, 0.08);
  --hairline-2: rgba(232, 226, 207, 0.14);
  --hairline-3: rgba(232, 226, 207, 0.24);

  --paper:    #e8e2cf;
  --paper-2:  #d4cdb6;
  --mute:     #8b95a5;
  --dim:      #5a6573;

  --brass:        #c9a96b;
  --brass-bright: #e0bf83;
  --brass-deep:   #8e7340;

  --blueprint: #6fa0b3;
  --success:   #84a787;
  --danger:    #c97a6e;

  --shadow-soft: 0 1px 0 rgba(255,255,255,0.03), 0 24px 48px -24px rgba(0,0,0,0.6);
  --shadow-card: 0 1px 0 rgba(255,255,255,0.04), 0 30px 60px -30px rgba(0,0,0,0.7);

  --serif: "Spectral", "Times New Roman", serif;
  --sans:  "Onest", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono:  "JetBrains Mono", ui-monospace, monospace;

  --rad: 2px;
  --rad-lg: 4px;
}

*,*::before,*::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { background: var(--ink); }
body {
  font-family: var(--sans);
  font-weight: 400;
  font-feature-settings: "ss01", "cv01";
  color: var(--paper);
  background: var(--ink);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  letter-spacing: -0.005em;
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; padding: 0; }
img { display: block; max-width: 100%; }
ul, ol { margin: 0; padding: 0; list-style: none; }

/* Blueprint grid background — subtle, behind everything */
.grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(111,160,179,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111,160,179,0.035) 1px, transparent 1px);
  background-size: 64px 64px, 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 90%);
}

#app { position: relative; z-index: 1; min-height: 100vh; }

/* ───────── Boot ───────── */
.boot {
  min-height: 100vh;
  display: grid;
  place-items: center;
  gap: 24px;
}
.boot__logo {
  width: 280px;
  height: auto;
  animation: bootPulse 1.6s ease-in-out infinite;
}
.boot__line {
  width: 80px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brass), transparent);
  animation: bootSweep 1.6s ease-in-out infinite;
}
@keyframes bootPulse {
  0%, 100% { opacity: 0.4; transform: translateY(0); }
  50%      { opacity: 1;   transform: translateY(-2px); }
}
@keyframes bootSweep {
  0%, 100% { opacity: 0.2; transform: scaleX(0.6); }
  50%      { opacity: 1;   transform: scaleX(1); }
}

/* ───────── Reusable text styles ───────── */
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brass);
}
.eyebrow--mute { color: var(--mute); }
.eyebrow--blueprint { color: var(--blueprint); }

/* ───────── Buttons ───────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: transparent;
  color: var(--paper);
  border: 1px solid var(--hairline-3);
  border-radius: var(--rad);
  transition: all .18s ease;
  position: relative;
  white-space: nowrap;
}
.btn:hover { border-color: var(--paper); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }

.btn--brass {
  background: var(--brass);
  color: var(--ink);
  border-color: var(--brass);
  font-weight: 600;
}
.btn--brass:hover { background: var(--brass-bright); border-color: var(--brass-bright); }

.btn--ghost { border-color: var(--hairline-2); color: var(--mute); }
.btn--ghost:hover { color: var(--paper); border-color: var(--paper); }

.btn::after {
  content: "→";
  font-family: var(--serif);
  font-size: 16px;
  letter-spacing: 0;
  transition: transform .18s ease;
}
.btn--no-arrow::after { display: none; }
.btn--back::before {
  content: "←";
  font-family: var(--serif);
  font-size: 16px;
}
.btn--back::after { display: none; }
.btn:hover::after { transform: translateX(3px); }

/* ───────── Input ───────── */
.field {
  display: block;
  position: relative;
  padding-top: 22px;
}
.field__label {
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mute);
}
.field__input {
  display: block;
  width: 100%;
  padding: 12px 0;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--hairline-2);
  color: var(--paper);
  font-size: 17px;
  letter-spacing: -0.01em;
  outline: none;
  transition: border-color .18s ease;
}
.field__input::placeholder { color: var(--dim); }
.field__input:focus { border-bottom-color: var(--brass); }

/* ───────── App shell ───────── */
.shell { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 56px;
  border-bottom: 1px solid var(--hairline);
  background: rgba(7, 16, 30, 0.85);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}
.brand__logo {
  height: 32px;
  width: auto;
  display: block;
}
.brand__sub {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--mute);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding-left: 16px;
  border-left: 1px solid var(--hairline-2);
  align-self: center;
}

.topnav { display: flex; gap: 8px; }
.topnav a {
  padding: 8px 16px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
  border-radius: var(--rad);
  transition: color .15s;
}
.topnav a:hover { color: var(--paper); }
.topnav a.is-active { color: var(--brass); }

.user-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px 8px 8px;
  border: 1px solid var(--hairline);
  border-radius: 99px;
  transition: border-color .15s;
}
.user-chip:hover { border-color: var(--hairline-3); }
.user-chip__av {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--graphite-3);
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: 14px;
  color: var(--brass);
}
.user-chip__name {
  font-size: 13px;
  font-weight: 500;
  color: var(--paper);
  line-height: 1.1;
}
.user-chip__role {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
  margin-top: 2px;
}

.menu { position: relative; }
.menu__pop {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  min-width: 220px;
  padding: 8px;
  background: var(--graphite);
  border: 1px solid var(--hairline-2);
  border-radius: var(--rad-lg);
  box-shadow: var(--shadow-card);
  display: none;
}
.menu.is-open .menu__pop { display: block; }
.menu__item {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--paper);
  border-radius: var(--rad);
  transition: background .15s;
  text-align: left;
}
.menu__item:hover { background: var(--graphite-2); }
.menu__item--mute { color: var(--mute); }

/* ───────── Page container ───────── */
.page {
  flex: 1;
  padding: 56px;
  max-width: 1480px;
  margin: 0 auto;
  width: 100%;
}

/* ───────── LOGIN ───────── */
.login {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
}
.login__left {
  position: relative;
  padding: 56px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    radial-gradient(ellipse 70% 50% at 30% 20%, rgba(201,169,107,0.08), transparent 60%),
    radial-gradient(ellipse 80% 60% at 80% 90%, rgba(111,160,179,0.06), transparent 60%),
    var(--ink-2);
  border-right: 1px solid var(--hairline);
  overflow: hidden;
}
.login__left::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(232,226,207,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232,226,207,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 30% 50%, black 20%, transparent 80%);
  pointer-events: none;
}
.login__corner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  position: relative;
  z-index: 2;
}
.login__hero { position: relative; z-index: 2; }
.login__logo {
  width: clamp(320px, 38vw, 560px);
  height: auto;
  display: block;
  margin-bottom: 8px;
}
.login__hero p {
  font-family: var(--serif);
  font-style: italic;
  font-size: 22px;
  color: var(--paper-2);
  margin: 28px 0 0;
  max-width: 540px;
  line-height: 1.5;
}
.login__meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  position: relative;
  z-index: 2;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
}
.login__meta .col { display: flex; flex-direction: column; gap: 4px; }
.login__meta .col strong { color: var(--paper); font-weight: 500; }

.login__right {
  display: grid;
  place-items: center;
  padding: 56px;
  background: var(--graphite);
}
.login__form { width: 100%; max-width: 380px; }
.login__form h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 36px;
  margin: 24px 0 8px;
  letter-spacing: -0.02em;
}
.login__form p.lead {
  color: var(--mute);
  font-size: 14px;
  margin: 0 0 40px;
  line-height: 1.5;
}
.login__form .field + .field { margin-top: 28px; }
.login__form .btn { width: 100%; justify-content: center; margin-top: 36px; padding: 18px; }
.login__error {
  margin-top: 24px;
  padding: 12px 16px;
  border-left: 2px solid var(--danger);
  background: rgba(201,122,110,0.08);
  font-size: 13px;
  color: var(--paper-2);
}

/* ───────── DASHBOARD ───────── */
.dash {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 56px;
}

.page-head {
  margin-bottom: 56px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  flex-wrap: wrap;
}
.page-head h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(40px, 5vw, 72px);
  line-height: 1;
  letter-spacing: -0.025em;
  margin: 18px 0 0;
}
.page-head h1 .it { font-style: italic; color: var(--brass); font-weight: 300; }
.page-head__sub {
  font-family: var(--serif);
  font-style: italic;
  font-size: 17px;
  color: var(--paper-2);
  margin-top: 18px;
  max-width: 620px;
  line-height: 1.5;
}
.page-head__meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mute);
}

/* Module list */
.modules { display: flex; flex-direction: column; }
.module {
  position: relative;
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr) auto;
  gap: 32px;
  padding: 32px 24px 32px 24px;
  border-top: 1px solid var(--hairline);
  align-items: start;
}
.module:last-child { border-bottom: 1px solid var(--hairline); }
.module__num {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 64px;
  line-height: 1;
  color: var(--paper);
  letter-spacing: -0.04em;
  font-feature-settings: "lnum";
}
.module__body { padding-top: 4px; }
.module__row {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}
.module__title {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 400;
  letter-spacing: -0.015em;
  margin: 0;
  line-height: 1.15;
}
.module__lead {
  color: var(--paper-2);
  font-size: 15px;
  line-height: 1.6;
  margin: 8px 0 18px;
  max-width: 60ch;
}
.module__chips {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
}
.module__chips .dot { color: var(--dim); }

.module__action {
  align-self: stretch;
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 64px;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 6px 10px;
  border: 1px solid var(--hairline-2);
  border-radius: var(--rad);
}
.status--current { color: var(--brass); border-color: var(--brass); }
.status--done    { color: var(--success); border-color: rgba(132,167,135,0.3); }
.status--locked  { color: var(--dim); }

/* Module variants */
.module--locked .module__num,
.module--locked .module__title { color: var(--dim); }
.module--locked .module__lead { color: var(--mute); }
.module--current { background: linear-gradient(90deg, rgba(201,169,107,0.05), transparent 80%); }
.module--current::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 2px;
  height: 100%;
  background: var(--brass);
}
.module--current .module__num { color: var(--brass); }
.module--done .module__num { color: var(--success); opacity: 0.7; }

/* Sidebar progress card */
.side {
  display: flex; flex-direction: column; gap: 24px;
  position: sticky; top: 100px; align-self: start;
}
.card {
  background: var(--graphite);
  border: 1px solid var(--hairline);
  border-radius: var(--rad-lg);
  box-shadow: var(--shadow-card);
}
.card--padded { padding: 28px; }
.card__title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 20px;
}

.progress-card__top { padding: 28px; }
.progress-ring {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
}
.progress-ring__num {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 72px;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--paper);
}
.progress-ring__den {
  font-family: var(--serif);
  font-size: 32px;
  color: var(--mute);
  font-weight: 300;
}
.progress-card__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brass);
  margin-top: 4px;
  margin-bottom: 20px;
}

.bar { height: 2px; background: var(--graphite-3); position: relative; overflow: hidden; }
.bar__fill {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: var(--brass);
  transition: width .6s cubic-bezier(.4,0,.2,1);
}

.progress-card__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--hairline);
}
.stat { padding: 22px; border-right: 1px solid var(--hairline); }
.stat:last-child { border-right: 0; }
.stat__num {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 28px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.stat__num--brass { color: var(--brass); }
.stat__label {
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mute);
}

.downloads { padding: 24px 28px; }
.downloads__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px dashed var(--hairline);
  color: var(--paper);
  font-size: 13px;
  transition: color .15s;
}
.downloads__item:last-child { border-bottom: 0; }
.downloads__item:hover { color: var(--brass); }
.downloads__item .ext {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--mute);
}

/* ───────── LESSON ───────── */
.lesson {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 80px;
}
.lesson__nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--hairline);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mute);
}
.lesson__nav a { color: var(--mute); transition: color .15s; }
.lesson__nav a:hover { color: var(--paper); }

.lesson__hero {
  margin-bottom: 56px;
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}
.lesson__num {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 96px;
  line-height: 0.9;
  color: var(--brass);
  letter-spacing: -0.04em;
}
.lesson__hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 8px 0 0;
}
.lesson__lead {
  margin: 24px 0 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: 22px;
  line-height: 1.5;
  color: var(--paper-2);
  max-width: 60ch;
}

.lesson__body { max-width: 720px; }
.lesson__cover {
  margin: 0 0 48px;
  border: 1px solid var(--hairline-2);
  border-radius: var(--rad);
  overflow: hidden;
  background: var(--graphite);
  position: relative;
}
.lesson__cover img { width: 100%; height: auto; }

.section { margin-bottom: 48px; scroll-margin-top: 100px; }
.section__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hairline);
}
.section__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--blueprint);
}
.section h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 26px;
  letter-spacing: -0.015em;
  margin: 0;
  color: var(--paper);
}
.section p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--paper-2);
  margin: 0 0 16px;
}
.section p:first-of-type::first-letter {
  font-family: var(--serif);
  font-weight: 400;
  float: left;
  font-size: 64px;
  line-height: 0.85;
  margin: 6px 12px 0 -2px;
  color: var(--brass);
}
.section .bullets {
  margin: 12px 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.section .bullets li {
  position: relative;
  padding-left: 28px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper-2);
}
.section .bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 16px;
  height: 1px;
  background: var(--brass);
}

.lesson__cta {
  margin-top: 64px;
  padding: 40px;
  border: 1px solid var(--hairline-2);
  background: linear-gradient(135deg, rgba(201,169,107,0.06), transparent 70%);
  border-radius: var(--rad-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.lesson__cta__text h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 28px;
  margin: 0;
  letter-spacing: -0.02em;
}
.lesson__cta__text p {
  margin: 8px 0 0;
  color: var(--mute);
  font-size: 14px;
  max-width: 50ch;
}

.toc {
  position: sticky;
  top: 100px;
  align-self: start;
  border-left: 1px solid var(--hairline);
  padding: 0 0 0 24px;
}
.toc__title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 20px;
}
.toc ol {
  display: flex;
  flex-direction: column;
  gap: 14px;
  counter-reset: toc;
}
.toc a {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 4px;
  align-items: baseline;
  font-size: 13px;
  color: var(--mute);
  line-height: 1.4;
  transition: color .15s;
  counter-increment: toc;
}
.toc a::before {
  content: counter(toc, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--dim);
}
.toc a:hover, .toc a.is-active { color: var(--brass); }
.toc a.is-active::before { color: var(--brass); }

/* ───────── TEST ───────── */
.test { max-width: 760px; margin: 0 auto; }
.test__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--hairline);
}
.test__breadcrumb {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mute);
}
.test__progress { display: flex; gap: 8px; }
.test__progress .dot {
  width: 28px; height: 4px;
  background: var(--graphite-3);
  border-radius: 99px;
  transition: background .25s;
}
.test__progress .dot.is-done    { background: var(--brass); }
.test__progress .dot.is-current { background: var(--paper); }

.q__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 16px;
}
.q__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 40px;
}

.choices { display: flex; flex-direction: column; gap: 12px; }
.choice {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 18px;
  align-items: center;
  padding: 22px 24px;
  border: 1px solid var(--hairline-2);
  background: var(--graphite);
  border-radius: var(--rad);
  cursor: pointer;
  transition: all .18s ease;
  position: relative;
  text-align: left;
  width: 100%;
}
.choice:hover { border-color: var(--hairline-3); background: var(--graphite-2); }
.choice__radio {
  width: 18px;
  height: 18px;
  border: 1px solid var(--hairline-3);
  border-radius: 50%;
  position: relative;
  transition: border-color .18s;
}
.choice__radio::after {
  content: "";
  position: absolute;
  inset: 4px;
  background: var(--brass);
  border-radius: 50%;
  transform: scale(0);
  transition: transform .18s;
}
.choice__row { display: flex; align-items: center; gap: 14px; }
.choice__letter {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--mute);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.choice__text {
  font-size: 16px;
  color: var(--paper);
  line-height: 1.5;
}
.choice.is-selected {
  border-color: var(--brass);
  background: linear-gradient(90deg, rgba(201,169,107,0.08), transparent 80%);
}
.choice.is-selected .choice__radio { border-color: var(--brass); }
.choice.is-selected .choice__radio::after { transform: scale(1); }

.test__nav {
  margin-top: 48px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

/* Test result */
.result { max-width: 720px; margin: 60px auto 0; text-align: center; }
.result__big {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 220px;
  line-height: 1;
  letter-spacing: -0.06em;
  color: var(--paper);
  display: inline-flex;
  align-items: baseline;
}
.result__big .pct {
  font-size: 64px;
  color: var(--mute);
  margin-left: 8px;
}
.result__big--pass { color: var(--brass); }
.result__verdict {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  margin: 4px 0 32px;
}
.result__verdict--pass { color: var(--success); }
.result__verdict--fail { color: var(--danger); }
.result__sub {
  font-family: var(--serif);
  font-style: italic;
  font-size: 22px;
  color: var(--paper-2);
  margin: 0 0 48px;
  line-height: 1.5;
}
.result__detail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 48px;
}
.result__detail .stat {
  border-right: 1px solid var(--hairline);
  padding: 28px 16px;
  text-align: center;
}
.result__detail .stat:last-child { border-right: 0; }
.result__actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ───────── ADMIN ───────── */
.admin-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 32px 0 0;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--hairline);
  gap: 24px;
  flex-wrap: wrap;
}
.search {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  border: 1px solid var(--hairline-2);
  border-radius: 99px;
  background: var(--graphite);
  min-width: 320px;
}
.search input {
  flex: 1;
  background: transparent;
  border: 0;
  outline: none;
  font-size: 13px;
  color: var(--paper);
}
.search input::placeholder { color: var(--dim); }
.search__icon { color: var(--mute); font-size: 14px; }

.admin-actions { display: flex; gap: 12px; align-items: center; }

.admin-table {
  margin-top: 32px;
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.admin-table th {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mute);
  text-align: left;
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline-2);
}
.admin-table th:first-child { padding-left: 16px; }
.admin-table th:last-child  { padding-right: 16px; text-align: right; }
.admin-table td {
  padding: 22px 0;
  border-bottom: 1px solid var(--hairline);
  vertical-align: middle;
}
.admin-table td:first-child { padding-left: 16px; }
.admin-table td:last-child  { padding-right: 16px; text-align: right; }
.admin-table tbody tr {
  cursor: pointer;
  transition: background .15s;
}
.admin-table tbody tr:hover { background: rgba(201,169,107,0.025); }

.cell-user { display: flex; align-items: center; gap: 14px; }
.cell-user .av {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--graphite-3);
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: 16px;
  color: var(--brass);
  flex-shrink: 0;
}
.cell-user .name { font-weight: 500; color: var(--paper); }
.cell-user .login { font-family: var(--mono); font-size: 11px; color: var(--mute); margin-top: 2px; letter-spacing: 0.04em; }

.score {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.02em;
}
.score--good { color: var(--success); }
.score--mid  { color: var(--brass); }
.score--low  { color: var(--danger); }
.score--none { color: var(--dim); }

.minibar { display: flex; gap: 4px; align-items: center; }
.minibar .seg {
  width: 12px; height: 6px;
  border-radius: 1px;
  background: var(--graphite-3);
}
.minibar .seg.is-done { background: var(--brass); }
.minibar .seg.is-current { background: var(--paper); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border: 1px solid var(--hairline-2);
  border-radius: var(--rad);
  color: var(--mute);
}
.badge--admin { color: var(--brass); border-color: rgba(201,169,107,0.3); }
.badge--inactive { color: var(--danger); border-color: rgba(201,122,110,0.3); }

/* Drawer */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7,16,30,0.7);
  backdrop-filter: blur(4px);
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s;
}
.drawer-overlay.is-open { opacity: 1; pointer-events: auto; }
.drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(640px, 100vw);
  background: var(--graphite);
  border-left: 1px solid var(--hairline-2);
  z-index: 101;
  transform: translateX(100%);
  transition: transform .3s cubic-bezier(.4,0,.2,1);
  display: flex;
  flex-direction: column;
}
.drawer.is-open { transform: translateX(0); }
.drawer__head {
  padding: 32px 40px 24px;
  border-bottom: 1px solid var(--hairline);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.drawer__close {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border: 1px solid var(--hairline-2);
  border-radius: 50%;
  color: var(--mute);
  transition: color .15s, border-color .15s;
  font-size: 16px;
}
.drawer__close:hover { color: var(--paper); border-color: var(--paper); }
.drawer__body { flex: 1; overflow-y: auto; padding: 32px 40px; }
.drawer__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 32px;
  letter-spacing: -0.02em;
  margin: 4px 0 0;
}
.drawer__sub {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
}
.drawer__section { margin-bottom: 32px; }
.drawer__section h4 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 16px;
  font-weight: 500;
}

.attempt {
  padding: 18px 0;
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: 20px;
  align-items: center;
  border-bottom: 1px solid var(--hairline);
}
.attempt__num {
  font-family: var(--serif);
  font-size: 28px;
  color: var(--mute);
  font-weight: 300;
}
.attempt__title { font-size: 14px; font-weight: 500; color: var(--paper); }
.attempt__time { font-family: var(--mono); font-size: 11px; color: var(--mute); margin-top: 4px; }

.kv {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--hairline);
}
.kv:last-child { border-bottom: 0; }
.kv__k { color: var(--mute); font-size: 13px; }
.kv__v { color: var(--paper); font-family: var(--mono); font-size: 13px; }

/* Modal (create user) */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7,16,30,0.85);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s;
}
.modal-overlay.is-open { opacity: 1; pointer-events: auto; }
.modal {
  width: 100%;
  max-width: 480px;
  background: var(--graphite);
  border: 1px solid var(--hairline-2);
  border-radius: var(--rad-lg);
  padding: 40px;
  box-shadow: var(--shadow-card);
  transform: translateY(8px);
  transition: transform .25s;
}
.modal-overlay.is-open .modal { transform: translateY(0); }
.modal h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 28px;
  letter-spacing: -0.02em;
  margin: 0 0 32px;
}
.modal .field + .field { margin-top: 24px; }
.modal__actions { display: flex; gap: 12px; margin-top: 36px; justify-content: flex-end; }

select.field__input {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' stroke='%238b95a5' stroke-width='1.5' fill='none' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 4px center;
  padding-right: 24px;
  cursor: pointer;
}
select.field__input option { background: var(--graphite); color: var(--paper); }

/* ───────── Empty / fallback ───────── */
.notice {
  padding: 60px 40px;
  text-align: center;
  border: 1px dashed var(--hairline-2);
  border-radius: var(--rad-lg);
}
.notice h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 24px;
  margin: 0 0 8px;
}
.notice p { color: var(--mute); margin: 0; font-size: 14px; }

/* ───────── Toast ───────── */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: 14px 24px;
  background: var(--graphite-2);
  border: 1px solid var(--hairline-2);
  border-radius: var(--rad);
  font-size: 13px;
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: all .25s;
}
.toast.is-open {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast--err { border-color: rgba(201,122,110,0.4); color: var(--danger); }
.toast--ok  { border-color: rgba(132,167,135,0.4); color: var(--success); }

/* ───────── Animations ───────── */
.reveal { animation: reveal .5s cubic-bezier(.4,0,.2,1) backwards; }
.reveal:nth-child(1) { animation-delay: .04s; }
.reveal:nth-child(2) { animation-delay: .08s; }
.reveal:nth-child(3) { animation-delay: .12s; }
.reveal:nth-child(4) { animation-delay: .16s; }
.reveal:nth-child(5) { animation-delay: .20s; }
.reveal:nth-child(6) { animation-delay: .24s; }
.reveal:nth-child(7) { animation-delay: .28s; }
.reveal:nth-child(8) { animation-delay: .32s; }
.reveal:nth-child(9) { animation-delay: .36s; }
.reveal:nth-child(10) { animation-delay: .40s; }
@keyframes reveal {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ───────── Responsive ───────── */
@media (max-width: 1100px) {
  .dash { grid-template-columns: 1fr; }
  .lesson { grid-template-columns: 1fr; gap: 40px; }
  .toc { display: none; }
}
@media (max-width: 800px) {
  .topbar { padding: 16px 24px; }
  .page { padding: 32px 24px; }
  .login { grid-template-columns: 1fr; }
  .login__left { padding: 32px; min-height: 400px; }
  .login__right { padding: 32px; }
  .login__hero h1 { font-size: 56px; }
  .module { grid-template-columns: 64px 1fr; gap: 20px; padding: 24px; }
  .module__num { font-size: 44px; }
  .module__action { grid-column: 1 / -1; padding-left: 84px; min-height: 0; }
  .module__title { font-size: 22px; }
  .lesson__hero { grid-template-columns: 1fr; gap: 16px; }
  .lesson__num { font-size: 64px; }
  .brand__sub { display: none; }
  .topnav { display: none; }
  .result__big { font-size: 140px; }
}