/* ============================================================
   量德量化 — Net Value Weekly Report
   Editorial-dark theme. Single warm-amber accent. Mono numerics.
   ============================================================ */

@font-face {
  font-family: 'Geist';
  src: url('/assets/fonts/Geist-Light.woff2') format('woff2');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('/assets/fonts/Geist-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('/assets/fonts/Geist-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('/assets/fonts/Geist-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('/assets/fonts/Geist-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist Mono';
  src: url('/assets/fonts/GeistMono-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist Mono';
  src: url('/assets/fonts/GeistMono-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist Mono';
  src: url('/assets/fonts/GeistMono-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* ---------- Tokens ---------- */
:root {
  /* Surfaces — warm near-black ink */
  --bg-deep:      #0a0b0d;
  --bg-surface:   #13151a;
  --bg-elevated:  #1c1f25;
  --bg-card:      #15171c;

  /* Text */
  --text-primary:   #f0ede4;
  --text-secondary: #9a988f;
  --text-muted:     #65635c;
  --text-faint:     #45433d;

  /* Lines */
  --border:        rgba(240, 237, 228, 0.07);
  --border-strong: rgba(240, 237, 228, 0.15);

  /* Brand — single accent, locked across the page. Brand red from the
     corporate logo (#d30009). Slightly softened variants for hover and
     chart-line contrast against the cool slate benchmark. */
  --accent:        #e23a45;
  --accent-soft:   #f2535e;
  --accent-deep:   #d30009;
  --accent-glow:   rgba(226, 58, 69, 0.16);

  /* Benchmark — cool desaturated slate */
  --benchmark:     #7a8aa3;
  --benchmark-soft:#9babc1;

  /* Semantic — China convention: 红涨绿跌 */
  --pos: #e25563;
  --neg: #5fb374;

  /* Type */
  --font-sans: 'Geist', 'PingFang SC', 'Hiragino Sans GB',
               'Noto Sans CJK SC', 'Source Han Sans SC',
               'Microsoft YaHei', system-ui, sans-serif;
  --font-mono: 'Geist Mono', 'SF Mono', 'JetBrains Mono',
               'Roboto Mono', ui-monospace, 'Cascadia Code', Menlo, monospace;

  /* Radii — single system: 4px small, 10px cards, no pills */
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;

  /* Spacing rhythm */
  --section-y: clamp(5rem, 9vw, 8rem);
  --wrap-max: 1180px;
  --wrap-pad: clamp(1.25rem, 4vw, 2.5rem);

  /* Motion */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 0.7s;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  font-feature-settings: 'ss01', 'cv11';
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Subtle ambient texture — fixed, pointer-events none */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% -5%,
      rgba(226, 58, 69, 0.05), transparent 60%),
    radial-gradient(ellipse 50% 40% at 0% 100%,
      rgba(122, 138, 163, 0.04), transparent 60%);
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.025;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

main, header, footer { position: relative; z-index: 1; }

a { color: inherit; text-decoration: none; }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--r-xs);
}
button { font: inherit; color: inherit; }

.skip {
  position: absolute;
  left: -9999px;
  top: 8px;
  background: var(--bg-elevated);
  padding: 0.5rem 1rem;
  border-radius: var(--r-sm);
  z-index: 100;
}
.skip:focus { left: 8px; }

/* ---------- Layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap-max);
  margin-inline: auto;
  padding-inline: var(--wrap-pad);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 11, 13, 0.78);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  color: var(--text-primary);
}
.brand__logo {
  display: block;
  height: 34px;
  width: auto;
  user-select: none;
  -webkit-user-drag: none;
}
.brand__name-en {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  text-transform: uppercase;
  padding-left: 0.85rem;
  border-left: 1px solid var(--border);
}
.site-nav {
  display: flex;
  gap: 2rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.site-nav a {
  position: relative;
  padding-block: 0.25rem;
  transition: color 0.2s var(--ease);
}
.site-nav a:hover { color: var(--text-primary); }
.site-nav__login {
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-xs);
  color: var(--text-primary) !important;
  background: rgba(255, 255, 255, 0.03);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.site-nav__login:hover {
  background: rgba(226, 58, 69, 0.08);
  border-color: rgba(226, 58, 69, 0.35);
}

/* ---------- Hero ---------- */
.hero {
  padding-top: clamp(4rem, 8vw, 6.5rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: stretch;
}
.hero__text {
  display: flex;
  flex-direction: column;
  max-width: 38ch;
  min-height: 100%;
}
.kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--accent-glow);
  border-radius: var(--r-xs);
  background: rgba(226, 58, 69, 0.05);
  margin-bottom: 1.75rem;
}
.display {
  font-size: clamp(2.6rem, 6.4vw, 4.6rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 1.5rem;
  color: var(--text-primary);
}
.display em {
  font-style: italic;
  font-weight: 500;
  color: var(--accent);
  font-family: 'Geist', serif;
}
.lede {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 42ch;
  margin: auto 0 0;
  padding-top: clamp(1.25rem, 3vw, 2rem);
}

/* Hero metric — the star */
.hero__metric {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100%;
  padding: clamp(2rem, 3.5vw, 2.75rem) clamp(2rem, 4vw, 3rem);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  background:
    linear-gradient(165deg, rgba(226, 58, 69, 0.06) 0%, transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0)),
    var(--bg-card);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 36px 90px -42px rgba(0, 0, 0, 0.65);
}
.hero__metric::before {
  content: '';
  position: absolute;
  top: 0;
  left: 2rem;
  right: 2rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.55;
}
.metric__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}
.metric__value {
  font-family: var(--font-mono);
  font-size: clamp(3.6rem, 9vw, 5.6rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  margin-bottom: 1.35rem;
  font-feature-settings: 'tnum', 'zero';
}
.metric__delta {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  color: var(--accent);
  margin-bottom: 0;
  padding-top: 0.85rem;
}
.metric__delta .arrow { font-family: var(--font-mono); font-size: 1.25rem; }
.metric__delta .delta__num {
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 3.4vw, 2.05rem);
  font-weight: 500;
  letter-spacing: -0.02em;
}
.metric__delta .delta__unit {
  font-size: 0.96rem;
  color: var(--text-secondary);
}
.metric__meta {
  margin-top: auto;
  padding-top: clamp(1.5rem, 3vw, 2.25rem);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  border-top: 1px solid var(--border);
}

/* Stat strip — editorial, not card-grid */
.stat-strip {
  list-style: none;
  margin: clamp(2.5rem, 5vw, 4rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stat-strip li {
  padding: 1.4rem clamp(1rem, 2vw, 1.6rem) 1.4rem 0;
  border-right: 1px solid var(--border);
}
.stat-strip li:first-child { padding-left: 0; }
.stat-strip li:last-child { border-right: none; padding-right: 0; }
.stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 2.4vw, 1.85rem);
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
  font-feature-settings: 'tnum';
}
.stat__label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.45;
  letter-spacing: 0.01em;
}

/* ---------- Section heads ---------- */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--text-primary);
}
.section-head__meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
}
.legend {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}
.legend__swatch {
  width: 18px;
  height: 3px;
  border-radius: 2px;
}
.legend__swatch--strategy  { background: var(--accent); }
.legend__swatch--csi1000   { background: var(--benchmark); }
.period-note {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  padding-left: 1.5rem;
  margin-left: 0.25rem;
  border-left: 1px solid var(--border);
}

/* ---------- Chart card ---------- */
.report {
  padding-block: var(--section-y);
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.chart-card {
  position: relative;
  margin-top: 0.5rem;
  padding: clamp(1rem, 2.5vw, 1.75rem) clamp(1rem, 2.5vw, 2rem) clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0)),
    var(--bg-card);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.025),
    0 30px 90px -50px rgba(0, 0, 0, 0.7);
}
.chart-card__y-axis-label,
.chart-card__x-axis-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}
.chart-card__y-axis-label {
  position: absolute;
  top: 1.1rem;
  left: clamp(1rem, 2.5vw, 2rem);
}
.chart-card__y-axis-label--right {
  left: auto;
  right: clamp(1rem, 2.5vw, 2rem);
  color: var(--text-muted);
}
.chart-card__x-axis-label {
  margin-top: 0.5rem;
  text-align: center;
}
.nav-chart {
  width: 100%;
  height: clamp(320px, 52vh, 520px);
  margin-top: 2rem;
  position: relative;
}
.nav-chart svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

.chart-hint {
  margin: 1.5rem 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* ---------- Chart tooltip ---------- */
.chart-tooltip {
  position: absolute;
  pointer-events: none;
  z-index: 5;
  min-width: 240px;
  padding: 0.85rem 1rem;
  background: rgba(20, 22, 27, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  box-shadow:
    0 18px 50px -16px rgba(0, 0, 0, 0.65),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  font-family: var(--font-sans);
  color: var(--text-primary);
  transition: opacity 0.18s var(--ease);
}
.chart-tooltip[hidden] { display: none; }

.tt__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  padding-bottom: 0.65rem;
  margin-bottom: 0.65rem;
  border-bottom: 1px solid var(--border);
}
.tt__week {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}
.tt__date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}
.tt__row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: baseline;
  gap: 0.6rem 0.75rem;
  padding: 0.3rem 0;
  font-size: 0.85rem;
}
.tt__row + .tt__row { border-top: 1px solid var(--border); }
.tt__row--strategy { color: var(--text-primary); }
.tt__row--bench    { color: var(--text-secondary); }
.tt__row--excess   { padding-top: 0.5rem; }

.tt__label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--text-secondary);
  font-size: 0.82rem;
}
.tt__row--strategy .tt__label { color: var(--text-primary); }
.tt__swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
}
.tt__swatch--strategy { background: var(--accent); }
.tt__swatch--bench    { background: var(--benchmark); }

.tt__ret {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  font-feature-settings: 'tnum';
  letter-spacing: -0.01em;
  text-align: right;
  min-width: 5.5ch;
}
.tt__nav {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  text-align: right;
  min-width: 5ch;
}

.tt__ret.pos, .tt__row--excess .tt__ret.pos { color: var(--pos); }
.tt__ret.neg, .tt__row--excess .tt__ret.neg { color: var(--neg); }
.tt__ret.muted { color: var(--text-muted); }

/* ---------- About ---------- */
.about { padding-block: var(--section-y); }
.about__grid {
  display: flex;
  flex-direction: column;
  gap: clamp(2.5rem, 5vw, 4rem);
}
.about__lead { max-width: 64ch; }
.about__intro {
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin: 1.5rem 0 0;
  max-width: 60ch;
}
.about__pillars {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(0.75rem, 1.5vw, 1.25rem);
}
.about__pillars li {
  display: flex;
  flex-direction: column;
  padding: clamp(1.5rem, 2.5vw, 1.85rem);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0)),
    var(--bg-card);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
}
.pillar__num {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  padding: 0.3rem 0.6rem;
  margin-bottom: 1rem;
  border: 1px solid rgba(226, 58, 69, 0.25);
  border-radius: var(--r-xs);
  background: rgba(226, 58, 69, 0.06);
}
.pillar__title {
  font-size: 1.15rem;
  font-weight: 500;
  margin: 0 0 0.5rem;
  color: var(--text-primary);
  letter-spacing: -0.005em;
}
.pillar__body {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

/* ---------- Footer ---------- */
.site-footer {
  padding-block: clamp(3rem, 5vw, 4rem);
  border-top: 1px solid var(--border);
  background: var(--bg-deep);
}
.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(2rem, 4vw, 4rem);
}
.brand--footer {
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
}
.brand__logo--footer { height: 44px; }
.site-footer__tag {
  margin: 1.25rem 0 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  max-width: 32ch;
}
.site-footer__disclosure p {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 60ch;
}
.site-footer__meta {
  display: flex;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  letter-spacing: 0.02em;
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity var(--dur) var(--ease),
    transform var(--dur) var(--ease);
  will-change: transform, opacity;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .hero__grid { grid-template-columns: 1fr; align-items: stretch; }
  .hero__text { max-width: none; min-height: auto; }
  .lede { margin-top: 0; padding-top: 0; }
  .hero__metric { min-height: auto; margin-top: 0.5rem; }
  .metric__meta { margin-top: 1.5rem; padding-top: 1.25rem; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .stat-strip li:nth-child(2) { border-right: none; }
  .stat-strip li:nth-child(3),
  .stat-strip li:nth-child(4) {
    border-top: 1px solid var(--border);
    padding-top: 1.4rem;
  }
  .stat-strip li:nth-child(3) { padding-left: 0; }
  .about__pillars { grid-template-columns: 1fr; }
  .site-footer__inner { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .site-nav { gap: 1.1rem; font-size: 0.85rem; }
  .site-nav__login { padding: 0.3rem 0.65rem; }
  .brand__name-en { display: none; }
  .brand__logo { height: 28px; }
  .section-head__meta { gap: 0.9rem; }
  .period-note { padding-left: 0; margin-left: 0; border-left: none; flex-basis: 100%; }
  .stat-strip { grid-template-columns: 1fr; }
  .stat-strip li {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding-block: 1.1rem;
  }
  .stat-strip li:last-child { border-bottom: none; }
  .stat-strip li:nth-child(n) { padding-top: 1.1rem; border-top: none; }
  .about__pillars li { grid-template-columns: 1fr; gap: 0.4rem; }
}

/* ---------- Auth / Admin ---------- */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(2rem, 5vw, 4rem) var(--wrap-pad);
}
.auth-shell {
  width: 100%;
  max-width: 440px;
}
.auth-shell--wide { max-width: 520px; }
.auth-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}
.auth-back {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: color 0.2s var(--ease);
}
.auth-back:hover { color: var(--text-primary); }
.auth-card {
  padding: clamp(1.75rem, 4vw, 2.5rem);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  background:
    linear-gradient(165deg, rgba(226, 58, 69, 0.05) 0%, transparent 45%),
    var(--bg-card);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 30px 80px -40px rgba(0, 0, 0, 0.6);
}
.auth-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.6rem, 4vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.02em;
}
.auth-lede {
  margin: 0 0 1.75rem;
  color: var(--text-secondary);
  line-height: 1.65;
  font-size: 0.95rem;
}
.auth-note {
  margin: -1rem 0 1.5rem;
  padding: 0.65rem 0.8rem;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.5;
}
.auth-note code {
  font-family: var(--font-mono);
  color: var(--text-secondary);
}
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.auth-form__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.25rem;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.field__label {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.field__input {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  background: rgba(0, 0, 0, 0.25);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.field__input:focus {
  outline: none;
  border-color: rgba(226, 58, 69, 0.55);
  box-shadow: 0 0 0 3px rgba(226, 58, 69, 0.12);
}
.field__hint {
  font-size: 0.78rem;
  color: var(--text-faint);
  line-height: 1.45;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), opacity 0.2s;
}
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent-deep);
}
.btn--primary:hover:not(:disabled) {
  background: var(--accent-soft);
}
.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-strong);
}
.btn--ghost:hover:not(:disabled) {
  color: var(--text-primary);
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.03);
}
.btn--danger {
  background: rgba(226, 58, 69, 0.12);
  color: #f7a0a7;
  border-color: rgba(226, 58, 69, 0.35);
}
.btn--danger:hover:not(:disabled) {
  background: rgba(226, 58, 69, 0.2);
  color: #ffd0d4;
}
.btn--sm {
  padding: 0.45rem 0.8rem;
  font-size: 0.82rem;
}
.form-error {
  margin: 0;
  padding: 0.65rem 0.8rem;
  border-radius: var(--r-sm);
  background: rgba(226, 58, 69, 0.1);
  border: 1px solid rgba(226, 58, 69, 0.25);
  color: #f7a0a7;
  font-size: 0.88rem;
}
.form-success {
  margin: 0;
  padding: 0.65rem 0.8rem;
  border-radius: var(--r-sm);
  background: rgba(95, 179, 116, 0.1);
  border: 1px solid rgba(95, 179, 116, 0.25);
  color: #9fd4ad;
  font-size: 0.88rem;
}
.admin-preview {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1.25rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, 0.02);
}
.admin-preview__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.admin-preview__value {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--text-secondary);
}
.admin-restore {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.admin-restore__title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
}
.admin-restore__desc,
.admin-restore__hint {
  margin: 0 0 1rem;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--text-muted);
}

/* ---------- Print ---------- */
@media print {
  body { background: white; color: black; }
  body::before, body::after { display: none; }
  .site-header, .chart-hint { display: none; }
}