/* ============================================================
   Numka — main stylesheet
   Imports theme files and defines all UI components using
   only var(--color-*) references — zero hardcoded colors.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color 0.2s ease, color 0.2s ease;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--color-accent-light); text-decoration: none; }
a:hover { color: var(--color-accent); text-decoration: underline; }
a:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: 3px; }

/* ── Typography ───────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-strong);
  font-weight: 700;
  line-height: 1.2;
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

code, pre {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.875em;
}

pre {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1.25rem 0;
}

code:not(pre code) {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0.15em 0.4em;
  color: var(--color-accent-light);
}

/* ── Layout ───────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container--narrow { max-width: 800px; }
.container--wide   { max-width: 1400px; }

/* ── Navigation ───────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.navbar__inner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  height: 56px;
}

.navbar__logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-strong);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
  margin-right: 0.5rem;
}
.navbar__logo:hover { text-decoration: none; }

/* NumkaLab brand mark — "Numka" in strong text, "Lab" in accent */
.brand-numka {
  color: var(--color-text-strong);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand-lab {
  color: var(--color-accent);
  font-weight: 800;
  letter-spacing: -0.01em;
}
/* In footer the brand mark is larger */
.footer__brand-name .brand-numka {
  color: var(--color-text-strong);
  font-size: 1.1em;
}
.footer__brand-name .brand-lab {
  color: var(--color-accent);
  font-size: 1.1em;
  font-weight: 800;
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: 0.125rem;
  margin-left: auto;
}

.nav-link {
  padding: 0.4rem 0.75rem;
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-sub);
  transition: color 0.15s, background 0.15s;
  text-decoration: none;
}
.nav-link:hover  { color: var(--color-text); background: var(--color-card); text-decoration: none; }
.nav-link.active { color: var(--color-accent-light); background: var(--color-accent-bg); }

.navbar__actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: 0.75rem;
  min-width: 0;
}

/* ── App switcher (site/CMS navbar) ───────────────────────── */
.app-switcher {
  position: relative;
}
.app-switcher > summary {
  list-style: none;
}
.app-switcher > summary::-webkit-details-marker {
  display: none;
}
.app-switcher__summary {
  height: 32px;
  padding: 0 0.7rem;
  gap: 0.35rem;
}
.app-switcher__chevron {
  opacity: 0.7;
  transition: transform 0.15s ease;
}
.app-switcher[open] .app-switcher__chevron {
  transform: rotate(180deg);
}
.app-switcher__menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 240px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.22);
  padding: 0.5rem;
  z-index: 220;
}
.app-switcher__group {
  padding: 0.3rem;
}
.app-switcher__group + .app-switcher__group {
  margin-top: 0.25rem;
  border-top: 1px solid var(--color-border-sub);
  padding-top: 0.55rem;
}
.app-switcher__group-title {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 700;
  margin-bottom: 0.35rem;
  padding: 0 0.45rem;
}
.app-switcher__link {
  display: block;
  padding: 0.5rem 0.55rem;
  border-radius: 8px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--color-text-sub);
  text-decoration: none;
}
.app-switcher__link:hover {
  text-decoration: none;
  background: var(--color-surface);
  color: var(--color-text);
}

/* Slim divider between nav and actions */
.navbar__sep {
  width: 1px;
  height: 20px;
  background: var(--color-border);
  margin: 0 0.25rem;
  flex-shrink: 0;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.25rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s, transform 0.1s;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
}
.btn:hover        { text-decoration: none; transform: translateY(-1px); }
.btn:active       { transform: translateY(0); }
.btn:focus-visible{ outline: none; box-shadow: var(--focus-ring); }

.btn--primary {
  background: var(--color-accent-dark);
  color: #fff;
  border-color: var(--color-accent-dark);
}
.btn--primary:hover  { background: var(--color-accent-hover); box-shadow: var(--shadow-accent); color: #fff; }

.btn--secondary {
  background: var(--color-card);
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn--secondary:hover { background: var(--color-card-hover); color: var(--color-text-strong); }

.btn--ghost {
  background: transparent;
  color: var(--color-text-sub);
  border-color: transparent;
}
.btn--ghost:hover { background: var(--color-card); color: var(--color-text); }

.btn--icon {
  padding: 0.5rem;
  border-radius: 8px;
  background: transparent;
  border-color: transparent;
  color: var(--color-text-sub);
}
.btn--icon:hover { background: var(--color-card); color: var(--color-text); }

.btn--sm { padding: 0.35rem 0.85rem; font-size: 0.8rem; }
.btn--lg { padding: 0.75rem 1.75rem; font-size: 1rem; }

/* ── Forms ────────────────────────────────────────────────── */
.form-group { margin-bottom: 1.25rem; }

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-sub);
  margin-bottom: 0.4rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.65rem 0.875rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: none;
}
.form-input::placeholder,
.form-textarea::placeholder  { color: var(--color-text-muted); }
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--focus-ring);
}

.form-textarea { resize: vertical; min-height: 120px; }

.form-error {
  font-size: 0.8rem;
  color: var(--color-danger);
  margin-top: 0.3rem;
}

/* ── Cards ────────────────────────────────────────────────── */
.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: box-shadow 0.2s, border-color 0.2s, transform 0.2s;
}
.card:hover { box-shadow: var(--shadow-md); }

.card--interactive:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

.card--glass {
  background: var(--color-glass-bg);
  border-color: var(--color-glass-border);
  backdrop-filter: blur(12px);
}

/* ── Badges ───────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge--concept     { background: rgba(100,116,139,0.12);   color: var(--color-badge-concept); }
.badge--development { background: rgba(96, 165, 250, 0.12); color: var(--color-badge-development); }
.badge--beta        { background: rgba(245,158, 11, 0.12);  color: var(--color-badge-beta); }
.badge--mvp         { background: rgba(167,139,250, 0.12);  color: var(--color-badge-mvp); }
.badge--active      { background: rgba( 34,197, 94, 0.12);  color: var(--color-badge-active); }
.badge--paused      { background: rgba(239, 68, 68, 0.12);  color: var(--color-badge-paused); }

.badge--diary   { background: var(--color-accent-bg);   color: var(--color-accent-light); }
.badge--news    { background: rgba(6,182,212,0.12);     color: var(--color-info); }
.badge--update  { background: rgba(245,158,11,0.12);    color: var(--color-warning); }
.badge--release { background: rgba(34,197,94,0.12);     color: var(--color-success); }

/* ── Hero section ─────────────────────────────────────────── */
.hero {
  padding: 5rem 0 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero__eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: 1rem;
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  color: var(--color-text-strong);
}

.hero__title .accent { color: var(--color-accent); }

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-sub);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero__glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero > .container { position: relative; z-index: 1; }

/* ── Section ──────────────────────────────────────────────── */
.section {
  padding: 4rem 0;
}

.section--alt {
  background: var(--color-surface);
}

.section__header {
  text-align: center;
  margin-bottom: 3rem;
}

.section__tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: 0.75rem;
}

.section__title { margin-bottom: 0.75rem; }

.section__subtitle {
  color: var(--color-text-sub);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ── Grid layouts ─────────────────────────────────────────── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 1.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
}

/* ── Project card ─────────────────────────────────────────── */
.project-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  text-decoration: none;
  color: inherit;
}
.project-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-accent);
  transform: translateY(-3px);
  text-decoration: none;
  color: inherit;
}

.project-card__header { display: flex; align-items: flex-start; gap: 0.875rem; }
.project-card__logo {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
  overflow: hidden;
}
.project-card__name { font-size: 1.1rem; font-weight: 700; color: var(--color-text-strong); }
.project-card__tagline { font-size: 0.875rem; color: var(--color-text-sub); margin-top: 0.2rem; }

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
}

.tag {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-text-sub);
  font-family: 'JetBrains Mono', monospace;
}

/* ── Blog / post card ─────────────────────────────────────── */
.post-card {
  display: flex;
  flex-direction: column;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s;
  text-decoration: none;
  color: inherit;
}
.post-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); text-decoration: none; color: inherit; }

.post-card__image { aspect-ratio: 16/9; overflow: hidden; background: var(--color-surface); }
.post-card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
.post-card:hover .post-card__image img { transform: scale(1.03); }

.post-card__body   { padding: 1.25rem; display: flex; flex-direction: column; flex: 1; gap: 0.5rem; }
.post-card__meta   { display: flex; align-items: center; gap: 0.5rem; }
.post-card__date   { font-size: 0.8rem; color: var(--color-text-muted); }
.post-card__title  { font-size: 1.05rem; font-weight: 700; color: var(--color-text-strong); line-height: 1.3; }
.post-card__excerpt{ font-size: 0.875rem; color: var(--color-text-sub); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* ── Portal service card ──────────────────────────────────── */
.service-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 1.5rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.service-card--active:hover { border-color: var(--color-accent); box-shadow: var(--shadow-accent); }

.service-card__icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.service-card__name    { font-size: 1.15rem; font-weight: 700; color: var(--color-text-strong); }
.service-card__tagline { font-size: 0.875rem; color: var(--color-text-sub); }
.service-card__footer  { margin-top: auto; display: flex; align-items: center; justify-content: space-between; width: 100%; gap: 0.5rem; }

/* ── Divider ──────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2rem 0;
}

/* ── Alert / callout ──────────────────────────────────────── */
.callout {
  display: flex;
  gap: 0.875rem;
  padding: 1rem 1.25rem;
  border-radius: 8px;
  border-left: 4px solid;
  margin: 1.5rem 0;
}
.callout--info    { border-color: var(--color-info);    background: rgba(6,182,212,0.08); }
.callout--warning { border-color: var(--color-warning); background: rgba(245,158,11,0.08); }
.callout--tip     { border-color: var(--color-success); background: rgba(34,197,94,0.08); }

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 3rem 0 2rem;
  margin-top: auto;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer__brand { max-width: 280px; }
.footer__brand-name { font-size: 1.1rem; font-weight: 700; color: var(--color-text-strong); margin-bottom: 0.5rem; }
.footer__brand-name span { color: var(--color-accent); }
.footer__brand-desc { font-size: 0.875rem; color: var(--color-text-muted); line-height: 1.6; }

.footer__heading { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-muted); margin-bottom: 0.875rem; }

.footer__links { list-style: none; display: flex; flex-direction: column; gap: 0.4rem; }
.footer__links a { font-size: 0.875rem; color: var(--color-text-sub); }
.footer__links a:hover { color: var(--color-text); text-decoration: none; }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border-sub);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ── Theme toggle ─────────────────────────────────────────── */
.theme-toggle {
  padding: 0;
  border-radius: 10px;
  background: transparent;
  border: none;
  color: var(--color-text-sub);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}
.theme-toggle:hover { background: var(--color-card); color: var(--color-text); }

/* Initial state: hidden — theme.js immediately shows the correct icon on load.
   CSS [data-theme] selectors serve as a visual fallback before JS runs. */
.theme-toggle .icon-sun  { display: none; color: #f59e0b; }
.theme-toggle .icon-moon { display: none; color: var(--color-accent-light); }
[data-theme="dark"]  .theme-toggle .icon-sun  { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* ── Language switcher ────────────────────────────────────── */
.lang-switcher {
  position: relative;
}
.lang-switcher__btn {
  height: 36px;
  padding: 0 0.625rem;
  border-radius: 10px;
  background: transparent;
  border: none;
  color: var(--color-text-sub);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}
.lang-switcher__btn:hover { background: var(--color-card); color: var(--color-text); }

.lang-switcher__globe { flex-shrink: 0; }
.lang-switcher__chevron { flex-shrink: 0; opacity: 0.6; }

.lang-switcher__dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 0.25rem;
  min-width: 148px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
  z-index: 200;
  display: none;
}
.lang-switcher__dropdown.open { display: block; animation: fadeInDown 0.15s ease; }

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.lang-switcher__option {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  font-size: 0.875rem;
  color: var(--color-text-sub);
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
}
.lang-switcher__option:hover { background: var(--color-surface); color: var(--color-text); }
.lang-switcher__option.active { color: var(--color-accent-light); background: var(--color-accent-bg); }

/* ── Auth pages ───────────────────────────────────────────── */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.auth-box {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
}

.auth-box__logo {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-box__title {
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 0.4rem;
}

.auth-box__sub {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-bottom: 2rem;
}

/* ── Pagination ───────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 2rem 0 1rem;
}

.pagination__link, .pagination__current {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 0.5rem;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
  border: 1px solid transparent;
}

.pagination__link {
  color: var(--color-text-sub);
  border-color: var(--color-border);
  background: var(--color-card);
}
.pagination__link:hover { color: var(--color-text); text-decoration: none; border-color: var(--color-accent); }
.pagination__current { background: var(--color-accent-dark); color: #fff; border-color: var(--color-accent-dark); }

/* ── Utility ──────────────────────────────────────────────── */
.text-muted   { color: var(--color-text-muted); }
.text-sub     { color: var(--color-text-sub); }
.text-accent  { color: var(--color-accent-light); }
.text-strong  { color: var(--color-text-strong); font-weight: 600; }
.text-center  { text-align: center; }
.text-sm      { font-size: 0.875rem; }
.text-xs      { font-size: 0.75rem; }

.mt-auto { margin-top: auto; }
.w-full  { width: 100%; }

.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-sm       { gap: 0.5rem; }
.gap-md       { gap: 1rem; }
.gap-lg       { gap: 1.5rem; }

.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;
}

/* ── Mobile ───────────────────────────────────────────────── */
@media (max-width: 768px) {
  .container { padding: 0 0.9rem; }
  .navbar__inner {
    height: auto;
    min-height: 56px;
    flex-wrap: wrap;
    row-gap: 0.35rem;
    padding: 0.35rem 0;
  }
  .navbar__actions {
    margin-left: auto;
    gap: 0.2rem;
  }
  .navbar__actions .btn {
    max-width: 9.5rem;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .app-switcher__menu {
    right: auto;
    left: 0;
    min-width: min(88vw, 260px);
  }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; max-width: none; }
  .footer__bottom { flex-direction: column; gap: 0.75rem; text-align: center; }
  .navbar__nav { display: none; }
  .navbar__sep { display: none; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .hero { padding: 3rem 0 2.5rem; }
}

@media (max-width: 480px) {
  .navbar__logo { margin-right: 0.25rem; }
  .lang-switcher__btn { padding: 0 0.45rem; }
  .navbar__actions .btn {
    max-width: 7rem;
    padding-left: 0.55rem;
    padding-right: 0.55rem;
  }
  .app-switcher__summary {
    padding: 0 0.6rem;
  }
  .service-card__footer {
    flex-direction: column;
    align-items: stretch;
  }
  .service-card__footer .btn {
    width: 100%;
    justify-content: center;
  }
  .footer__grid { grid-template-columns: 1fr; }
  .auth-box { padding: 1.75rem 1.25rem; }
}

/* ── Auth modal brand mark ────────────────────────────────── */
.auth-modal__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}
.auth-modal__brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--color-accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.auth-modal__brand-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-strong);
  letter-spacing: -0.01em;
}
.auth-modal__brand-name span {
  color: var(--color-accent);
}

/* ── Auth Modal ───────────────────────────────────────────── */
dialog.auth-modal {
  border: none;
  border-radius: 16px;
  padding: 0;
  background: var(--color-card);
  box-shadow: 0 25px 60px rgba(0,0,0,0.55);
  width: min(480px, 96vw);
  max-height: 90vh;
  overflow-y: auto;
  color: var(--color-text);
}
dialog.auth-modal::backdrop {
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(5px);
}
.auth-modal__inner { padding: 2rem; }
.auth-modal__close {
  position: absolute;
  top: 1rem; right: 1rem;
  background: none;
  border: none;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}
.auth-modal__close:hover { color: var(--color-text); background: var(--color-surface); }
.auth-modal__tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.75rem;
  background: var(--color-surface);
  border-radius: 10px;
  padding: 0.25rem;
}
.auth-modal__tab {
  flex: 1;
  background: none;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.15s;
}
.auth-modal__tab.active {
  background: var(--color-card);
  color: var(--color-text-strong);
  box-shadow: 0 1px 4px rgba(0,0,0,0.15);
}
.auth-modal__pane { display: none; }
.auth-modal__pane.active { display: block; }
.auth-modal__title { font-size: 1.4rem; font-weight: 700; color: var(--color-text-strong); margin: 0 0 0.35rem; }
.auth-modal__sub  { font-size: 0.875rem; color: var(--color-text-muted); margin: 0 0 1.5rem; }
.auth-modal__divider {
  display: flex; align-items: center; gap: 0.75rem;
  margin: 1.25rem 0; color: var(--color-text-muted); font-size: 0.75rem;
}
.auth-modal__divider::before, .auth-modal__divider::after {
  content: ''; flex: 1; height: 1px; background: var(--color-border);
}
.auth-modal__footer {
  text-align: center;
  margin-top: 1.25rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}
.auth-modal__footer a, .auth-modal__footer button.link-btn {
  color: var(--color-accent-light);
  text-decoration: none;
  background: none; border: none; cursor: pointer;
  font-size: inherit; padding: 0;
}
.auth-modal__footer a:hover, .auth-modal__footer button.link-btn:hover { text-decoration: underline; }
.auth-modal__error {
  background: rgba(239,68,68,0.1);
  border: 1px solid var(--color-danger);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--color-danger);
}
.auth-modal__error:empty { display: none; }
.auth-social { display: flex; flex-direction: column; gap: 0.625rem; }
.auth-social__btn {
  display: flex; align-items: center; justify-content: center; gap: 0.625rem;
  padding: 0.625rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s;
  cursor: pointer;
}
.auth-social__btn:hover { border-color: var(--color-accent); }