/* =========================================================================
   SalentoSec — stylesheet (no framework)
   ========================================================================= */

/* ---------- Fonts (self-hosted) ---------- */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/assets/fonts/inter-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/assets/fonts/inter-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/assets/fonts/inter-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/assets/fonts/inter-700.woff2') format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/assets/fonts/jbm-400.woff2') format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/assets/fonts/jbm-500.woff2') format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/assets/fonts/jbm-600.woff2') format('woff2');
}

/* ---------- Tokens (dark default) ---------- */
:root {
  --bg: #07090c;
  --surface: #0f1318;
  --surface-2: #161b22;
  --border: #1f2937;
  --text: #e6edf3;
  --muted: #8b97a8;
  --primary: #4ade80;
  --primary-soft: #22c55e;
  --on-primary: #062012;
  --accent: #fbbf24;
  --danger: #f87171;
  --header-bg: rgba(7, 9, 12, 0.7);
  --chip-bg: rgba(74, 222, 128, 0.08);
  --chip-border: rgba(74, 222, 128, 0.2);
  --hover-border: rgba(74, 222, 128, 0.4);
  --selection: rgba(74, 222, 128, 0.25);
  --gradient-glow-1: rgba(74, 222, 128, 0.08);
  --gradient-glow-2: rgba(251, 191, 36, 0.05);

  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  --radius-sm: 0.4rem;
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-pill: 999px;

  --container-max: 72rem;

  --easing: cubic-bezier(0.4, 0, 0.2, 1);
}

:root[data-theme="light"] {
  --bg: #faf7f0;
  --surface: #ffffff;
  --surface-2: #f3efe5;
  --border: #e5e1d6;
  --text: #0f1318;
  --muted: #5b6472;
  --primary: #16a34a;
  --primary-soft: #15803d;
  --on-primary: #ffffff;
  --accent: #d97706;
  --danger: #dc2626;
  --header-bg: rgba(255, 252, 245, 0.78);
  --chip-bg: rgba(22, 163, 74, 0.10);
  --chip-border: rgba(22, 163, 74, 0.25);
  --hover-border: rgba(22, 163, 74, 0.5);
  --selection: rgba(22, 163, 74, 0.20);
  --gradient-glow-1: rgba(22, 163, 74, 0.10);
  --gradient-glow-2: rgba(217, 119, 6, 0.10);
}

/* ---------- Reset minimale ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, h4, p, ul, ol, figure, blockquote { margin: 0; padding: 0; }
ul[role="list"], ol[role="list"] { list-style: none; }
img, picture, svg { max-width: 100%; display: block; }
button { font: inherit; background: none; border: none; cursor: pointer; color: inherit; padding: 0; }
input, textarea, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }

html {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  transition: background-color 200ms var(--easing), color 200ms var(--easing);
}

body {
  min-height: 100dvh;
  background:
    radial-gradient(60rem 40rem at 80% -10%, var(--gradient-glow-1), transparent 60%),
    radial-gradient(50rem 30rem at -10% 20%, var(--gradient-glow-2), transparent 60%),
    var(--bg);
  transition: background 200ms var(--easing);
}

::selection {
  background-color: var(--selection);
  color: var(--text);
}

/* a11y */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section {
  padding-block: 4rem;
}
@media (min-width: 768px) {
  .section { padding-block: 6rem; }
}

.section--small { padding-block: 2.5rem; }

/* ---------- Typography ---------- */
h1, h2, h3 { font-weight: 700; line-height: 1.15; letter-spacing: -0.01em; color: var(--text); }
.h1 { font-size: 2.25rem; }
.h2 { font-size: 1.875rem; }
.h3 { font-size: 1.25rem; }
@media (min-width: 768px) {
  .h1 { font-size: 3rem; }
  .h2 { font-size: 2.25rem; }
}
.h-hero { font-size: 2.5rem; line-height: 1.05; font-weight: 700; }
@media (min-width: 768px) { .h-hero { font-size: 3.75rem; } }

.muted { color: var(--muted); }
.lead { font-size: 1.125rem; color: var(--muted); line-height: 1.6; }

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.terminal-prompt::before {
  content: "$ ";
  color: var(--primary);
  font-family: var(--font-mono);
}

@keyframes blink { 50% { opacity: 0; } }
.cursor::after {
  content: "▍";
  margin-left: 0.15rem;
  color: var(--primary);
  animation: blink 1s step-end infinite;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition:
    transform 120ms var(--easing),
    background-color 120ms var(--easing),
    border-color 120ms var(--easing),
    color 120ms var(--easing);
  text-decoration: none;
  cursor: pointer;
}
.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn--primary {
  background-color: var(--primary);
  color: var(--on-primary);
}
.btn--primary:hover {
  background-color: var(--primary-soft);
  transform: translateY(-1px);
}
.btn--ghost {
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}
.btn--ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.btn--small { padding: 0.4rem 0.75rem; font-size: 0.85rem; }

/* ---------- Chip ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background-color: var(--chip-bg);
  color: var(--primary);
  border: 1px solid var(--chip-border);
}

/* ---------- Card ---------- */
.card {
  display: block;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition:
    border-color 150ms var(--easing),
    transform 150ms var(--easing),
    background-color 200ms var(--easing);
}
.card:hover { border-color: var(--hover-border); }
.card--accent { border-color: var(--chip-border); }
.card--lift:hover { transform: translateY(-2px); }
.card__num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}
.card__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.card__body {
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- Site header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--header-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}
.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}
.site-header__brand-mark {
  font-family: var(--font-mono);
  color: var(--primary);
  font-size: 1.125rem;
}
.site-header__nav {
  display: none;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.875rem;
}
@media (min-width: 768px) { .site-header__nav { display: flex; } }
.site-header__link {
  color: var(--muted);
  transition: color 120ms var(--easing);
}
.site-header__link:hover, .site-header__link[aria-current] { color: var(--primary); }

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
@media (min-width: 768px) { .site-header__actions { gap: 0.75rem; } }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.375rem;
  color: var(--muted);
  transition: color 120ms var(--easing), border-color 120ms var(--easing);
  width: 2rem;
  height: 2rem;
}
.icon-btn:hover { color: var(--primary); border-color: var(--primary); }
.icon-btn svg { width: 1rem; height: 1rem; }

.lang-switch {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.5rem;
  transition: color 120ms var(--easing), border-color 120ms var(--easing);
}
.lang-switch:hover { color: var(--primary); border-color: var(--primary); }

/* show only desktop / mobile variants */
.only-mobile { display: flex; }
.only-desktop { display: none; }
@media (min-width: 768px) {
  .only-mobile { display: none; }
  .only-desktop { display: inline-flex; }
}

/* Theme icons swap */
.theme-icon-sun, .theme-icon-moon { display: none; }
:root[data-theme="dark"] .theme-icon-sun { display: block; }
:root[data-theme="light"] .theme-icon-moon { display: block; }

/* ---------- Site footer (mirror del header) ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 6rem;
  color: var(--muted);
}
.site-footer__top,
.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem 2rem;
  flex-wrap: wrap;
}
@media (min-width: 768px) {
  .site-footer__top,
  .site-footer__bottom {
    flex-wrap: nowrap;
  }
}
.site-footer__top { padding-block: 2rem 1.25rem; }
.site-footer__bottom {
  padding-block: 1.25rem 2.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
}
.site-footer__brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}
.site-footer__brand-link:hover { color: var(--primary); }
.site-footer__brand-mark { font-family: var(--font-mono); color: var(--primary); font-size: 1.125rem; }
.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  font-size: 0.875rem;
}
.site-footer__nav a:hover { color: var(--primary); }
.site-footer__copy { font-family: var(--font-mono); font-size: 0.75rem; }
.site-footer__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-size: 0.875rem;
}
.site-footer__meta a:hover { color: var(--primary); }
.site-footer__meta .mono { font-family: var(--font-mono); font-size: 0.75rem; }

/* ---------- Hero ---------- */
.hero { padding-top: 4rem; padding-bottom: 3rem; }
@media (min-width: 768px) { .hero { padding-top: 6rem; padding-bottom: 5rem; } }
.hero__inner { max-width: 48rem; }
.hero__title { margin-bottom: 0; }
.hero__subtitle {
  margin-top: 1.5rem;
  font-size: 1.125rem;
  color: var(--muted);
  line-height: 1.6;
  max-width: 36rem;
}
.hero__ctas {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
@media (min-width: 640px) { .hero__ctas { flex-direction: row; } }
.hero__whoami {
  margin-top: 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--muted);
}
.hero__whoami strong { color: var(--text); font-weight: 500; }

/* ---------- Featured event ---------- */
.featured-event {
  padding-bottom: 1rem;
}
.featured-event__card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
@media (min-width: 768px) {
  .featured-event__card { flex-direction: row; align-items: center; justify-content: space-between; }
}
.featured-event__chip { margin-bottom: 0.875rem; }
.featured-event__title { font-size: 1.25rem; font-weight: 600; line-height: 1.3; }
.featured-event__sub { font-size: 0.875rem; color: var(--muted); margin-top: 0.625rem; }
.featured-event__cta { font-family: var(--font-mono); font-size: 0.875rem; color: var(--primary); }

/* ---------- Perché ora ---------- */
.perche {
  display: grid;
  gap: 2.5rem;
  max-width: 60rem;
}
@media (min-width: 768px) { .perche { grid-template-columns: 1fr 2fr; } }
.perche__title { font-size: 1.875rem; font-weight: 700; line-height: 1.15; letter-spacing: -0.01em; }
@media (min-width: 768px) { .perche__title { font-size: 2.25rem; } }
.perche__body p {
  font-size: 1.125rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}
.perche__body p:last-child { margin-bottom: 0; }
.perche__cta {
  margin-top: 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--primary);
}
.perche__cta:hover { text-decoration: underline; }

/* ---------- Pillars / generic grids ---------- */
.section-head {
  max-width: 36rem;
  margin-bottom: 3rem;
}
.section-head__title { font-size: 1.875rem; font-weight: 700; }
@media (min-width: 768px) { .section-head__title { font-size: 2.25rem; } }
.section-head__sub { margin-top: 1rem; color: var(--muted); }

.grid-2 {
  display: grid;
  gap: 1rem;
}
@media (min-width: 768px) { .grid-2 { grid-template-columns: 1fr 1fr; } }

.grid-2-sm {
  display: grid;
  gap: 1rem;
}
@media (min-width: 640px) { .grid-2-sm { grid-template-columns: 1fr 1fr; } }

/* ---------- Channels ---------- */
.channel {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.channel:hover { transform: translateY(-2px); }
.channel--primary { box-shadow: 0 0 0 1px var(--chip-border) inset; }
.channel__icon {
  flex-shrink: 0;
  width: 3rem; height: 3rem;
  background-color: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--primary);
}
.channel__head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.channel__name { font-size: 1.125rem; font-weight: 600; }
.channel__desc { font-size: 0.875rem; color: var(--muted); margin-top: 0.25rem; line-height: 1.5; }

/* ---------- Newsletter ---------- */
.newsletter {
  max-width: 48rem;
  margin: 0 auto;
  border-color: var(--chip-border);
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .newsletter { grid-template-columns: 1fr auto; align-items: center; gap: 2.5rem; }
}
.newsletter__title { font-size: 1.5rem; font-weight: 700; }
@media (min-width: 768px) { .newsletter__title { font-size: 1.875rem; } }
.newsletter__body { margin-top: 0.75rem; color: var(--muted); line-height: 1.6; }
.newsletter__form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
}
@media (min-width: 768px) { .newsletter__form { width: 18rem; } }
.newsletter__input {
  background-color: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.625rem 0.75rem;
  font-size: 0.875rem;
  transition: border-color 120ms var(--easing);
}
.newsletter__input:focus {
  outline: none;
  border-color: var(--primary);
}
.newsletter__note { font-size: 0.75rem; color: var(--muted); margin-top: 0.25rem; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 48rem; display: flex; flex-direction: column; gap: 0.75rem; }
.faq-item {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 150ms var(--easing);
}
.faq-item:hover { border-color: var(--hover-border); }
.faq-item__summary {
  list-style: none;
  padding: 1.25rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
}
.faq-item__summary::-webkit-details-marker { display: none; }
.faq-item__plus {
  font-family: var(--font-mono);
  color: var(--primary);
  font-size: 1.125rem;
  flex-shrink: 0;
  margin-top: 0.15rem;
  transition: transform 200ms var(--easing);
  user-select: none;
}
.faq-item[open] .faq-item__plus { transform: rotate(45deg); }
.faq-item__answer {
  padding: 0 1.25rem 1.25rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- Page header (kicker + title + intro) ---------- */
.page-header { max-width: 48rem; }
.page-header__title { font-size: 2.25rem; font-weight: 700; line-height: 1.1; letter-spacing: -0.01em; }
@media (min-width: 768px) { .page-header__title { font-size: 3rem; } }
.page-header__updated {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.5rem;
}
.page-header__intro {
  margin-top: 1.5rem;
  font-size: 1.125rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- Manifesto / generic value grid ---------- */
.values-grid {
  margin-top: 3rem;
  display: grid;
  gap: 1rem;
  max-width: 64rem;
}
@media (min-width: 768px) { .values-grid { grid-template-columns: 1fr 1fr; } }

.coc {
  margin-top: 4rem;
  max-width: 48rem;
  border-color: var(--chip-border);
}
.coc__title { font-size: 1.5rem; font-weight: 600; margin-bottom: 0.75rem; }
.coc__body { color: var(--muted); line-height: 1.6; margin-bottom: 0.75rem; }
.coc__list {
  list-style: disc;
  padding-left: 1.5rem;
  color: var(--muted);
  line-height: 1.7;
}
.coc__list li { margin-bottom: 0.5rem; }
.coc__report { color: var(--muted); margin-top: 1rem; font-size: 0.875rem; }
.coc__report a { color: var(--primary); }
.coc__report a:hover { text-decoration: underline; }

/* ---------- Eventi ---------- */
.events-section { margin-top: 3rem; }
.events-section__title { font-size: 1.5rem; font-weight: 600; margin-bottom: 1rem; }
.event-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}
.event-card__date { font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); }
.event-card__loc { font-size: 0.875rem; color: var(--muted); margin-top: 0.25rem; }
.event-card__desc { margin-top: 0.75rem; color: var(--muted); line-height: 1.6; }
.event-card__details {
  margin-top: 1rem;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--primary);
}
.event-card__details:hover { text-decoration: underline; }
.event-card--past { opacity: 0.7; }

/* ---------- Risorse ---------- */
.resource-groups {
  margin-top: 4rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}
.resource-group__title { font-size: 1.5rem; font-weight: 600; margin-bottom: 1rem; }
.resource-card { display: block; }
.resource-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}
.resource-card__title { font-weight: 600; }
.resource-card__ext {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.25rem;
}
.resource-card__desc {
  color: var(--muted);
  font-size: 0.875rem;
  margin-top: 0.5rem;
  line-height: 1.5;
}

/* ---------- Contatti ---------- */
.contact-card {
  margin-top: 2rem;
  max-width: 28rem;
}
.contact-card__label {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}
.contact-card__email {
  font-size: 1.25rem;
  font-weight: 600;
  transition: color 120ms var(--easing);
}
.contact-card__email:hover { color: var(--primary); }

/* ---------- Contact form ---------- */
.contact-form-wrap {
  margin-top: 3rem;
  max-width: 48rem;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.contact-form__row {
  display: grid;
  gap: 1rem;
}
@media (min-width: 640px) {
  .contact-form__row { grid-template-columns: 1fr 1fr; }
}
.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.contact-form__field label {
  font-size: 0.875rem;
  color: var(--muted);
  font-weight: 500;
}
.contact-form__field input,
.contact-form__field textarea {
  background-color: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.625rem 0.75rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  transition: border-color 120ms var(--easing);
  resize: vertical;
}
.contact-form__field input:focus,
.contact-form__field textarea:focus {
  outline: none;
  border-color: var(--primary);
}
.contact-form__field textarea {
  min-height: 8rem;
  line-height: 1.5;
}
.contact-form__honeypot {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.contact-form__note {
  font-size: 0.8rem;
  margin-top: 0.25rem;
}

.contact-banner {
  margin-top: 2rem;
  max-width: 48rem;
  border-left: 4px solid var(--primary);
}
.contact-banner--invalid { border-left-color: var(--accent); }
.contact-banner--error   { border-left-color: var(--danger); }

/* ---------- Privacy/Security shared ---------- */
.numbered-list {
  margin-top: 3rem;
  max-width: 48rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ---------- Utility margins (small set, used sparingly) ---------- */
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }

/* ---------- Admin: login + dashboard ---------- */
.admin-shell {
  max-width: 64rem;
  margin: 0 auto;
  padding-block: 3rem;
}

.admin-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}
.admin-toolbar h1 {
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.admin-toolbar__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
}

.login-card {
  max-width: 26rem;
  margin: 4rem auto;
  padding: 2.25rem;
}
.login-card__head {
  text-align: center;
  margin-bottom: 1.75rem;
}
.login-card__icon {
  display: inline-grid;
  place-items: center;
  width: 3rem; height: 3rem;
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--primary);
  margin-bottom: 1rem;
}
.login-card__icon svg { width: 1.25rem; height: 1.25rem; }
.login-card__title { font-size: 1.5rem; font-weight: 700; }
.login-card__subtitle { color: var(--muted); font-size: .875rem; margin-top: .25rem; }

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.login-form__field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.login-form__field label {
  font-size: 0.875rem;
  color: var(--muted);
  font-weight: 500;
}
.login-form__field input {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.625rem 0.75rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  transition: border-color 120ms var(--easing);
}
.login-form__field input:focus {
  outline: none;
  border-color: var(--primary);
}
.login-error {
  background: rgba(248, 113, 113, .08);
  border: 1px solid rgba(248, 113, 113, .3);
  border-radius: var(--radius-sm);
  padding: .6rem .8rem;
  color: var(--danger);
  font-size: .85rem;
}

.stats-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  margin-bottom: 2rem;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}
.stat-card__label {
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.stat-card__value {
  font-size: 2rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text);
  margin-top: 0.4rem;
  line-height: 1;
}
.stat-card__value--accent { color: var(--primary); }
.stat-card__value--danger { color: var(--danger); }
.stat-card__hint {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.4rem;
  font-family: var(--font-mono);
}

.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 2rem;
}
.chart-card__title {
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.chart-svg { width: 100%; height: 220px; display: block; }
.chart-svg .axis-line { stroke: var(--border); stroke-width: 1; }
.chart-svg .grid-line { stroke: var(--border); stroke-width: 1; opacity: .5; }
.chart-svg .axis-label { fill: var(--muted); font-family: var(--font-mono); font-size: 10px; }
.chart-svg .bar { fill: var(--primary); opacity: .65; transition: opacity 120ms; }
.chart-svg .bar:hover { opacity: 1; }
.chart-svg .bar-tooltip {
  fill: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  text-anchor: middle;
  pointer-events: none;
}

.dash-cols {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 2rem;
}
@media (min-width: 768px) {
  .dash-cols--2 { grid-template-columns: 1fr 1fr; }
}

.dash-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
}
.dash-section__title {
  font-size: 0.875rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  margin-bottom: 1rem;
}

.dash-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.dash-table th, .dash-table td {
  padding: 0.5rem 0;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.dash-table th {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.dash-table tr:last-child td { border-bottom: none; }
.dash-table .num {
  text-align: right;
  font-family: var(--font-mono);
  color: var(--primary);
  white-space: nowrap;
}
.dash-table code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text);
}
.dash-empty { color: var(--muted); text-align: center; padding: 1rem; }

.admin-section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 3rem;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

/* ---------- CTF page ---------- */
.ctf-page { max-width: 56rem; margin: 0 auto; }

.ctf-banner {
  margin-top: 2rem;
  border-left: 4px solid var(--primary);
}
.ctf-banner--success { border-left-color: var(--primary); }
.ctf-banner--error   { border-left-color: var(--danger); }
.ctf-banner--warn    { border-left-color: var(--accent); }
.ctf-banner--gold {
  border-left-color: var(--accent);
  background: linear-gradient(120deg, rgba(74,222,128,.06), rgba(251,191,36,.08));
}
.ctf-banner code {
  background: var(--surface-2);
  padding: 1px 5px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.85em;
}

.ctf-form-card { margin-top: 2rem; }
.ctf-form { display: flex; flex-direction: column; gap: 0.5rem; }
.ctf-form__label {
  font-size: 0.875rem;
  color: var(--muted);
  font-weight: 500;
}
.ctf-form__row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.ctf-form__input {
  flex: 1 1 16rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.875rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text);
  transition: border-color 120ms var(--easing);
}
.ctf-form__input:focus {
  outline: none;
  border-color: var(--primary);
}
.ctf-form__note { font-size: 0.8rem; margin-top: 0.5rem; }

.ctf-chapters {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.ctf-chapter {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  transition: border-color 150ms var(--easing);
  position: relative;
}
.ctf-chapter--solved {
  border-color: rgba(74, 222, 128, 0.4);
  background: linear-gradient(120deg, rgba(74,222,128,.04), transparent);
}
:root[data-theme="light"] .ctf-chapter--solved {
  border-color: rgba(22, 163, 74, 0.4);
  background: linear-gradient(120deg, rgba(22,163,74,.05), transparent);
}
.ctf-chapter--locked { opacity: 0.55; }
.ctf-chapter__head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}
.ctf-chapter__num {
  font-family: var(--font-mono);
  color: var(--primary);
  font-size: 1.125rem;
  font-weight: 600;
}
.ctf-chapter__title {
  font-size: 1.125rem;
  font-weight: 600;
  flex: 1;
}
.ctf-chapter__state {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
}
.ctf-chapter--solved .ctf-chapter__state { color: var(--primary); }
.ctf-chapter__body {
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.95rem;
}
.ctf-chapter__body code {
  background: var(--surface-2);
  padding: 1px 5px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--text);
}
.ctf-chapter__pointer {
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--primary);
}
.ctf-chapter__locked-msg { font-size: 0.875rem; }

.ctf-hof { margin-top: 2.5rem; }
.ctf-hof__head { margin-bottom: 1rem; }
.ctf-hof__empty { font-size: 0.875rem; padding: 0.75rem 0; }
.ctf-hof__list { list-style: none; padding: 0; }
.ctf-hof__item {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  font-size: 0.95rem;
}
.ctf-hof__item:last-child { border-bottom: none; }
.ctf-hof__rank {
  font-family: var(--font-mono);
  color: var(--muted);
  font-size: 0.85rem;
  width: 2.5rem;
}
.ctf-hof__handle { color: var(--text); }
.ctf-hof__note { font-size: 0.875rem; }
.ctf-hof__date {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.ctf-disclaimer {
  margin-top: 2rem;
  border-color: var(--chip-border);
}
.ctf-disclaimer a { color: var(--primary); }
.ctf-disclaimer a:hover { text-decoration: underline; }

/* ---------- Print ---------- */
@media print {
  .site-header, .site-footer, .icon-btn, .lang-switch { display: none; }
  body { background: white; color: black; }
  .card { border-color: #ccc; }
}