/* =====================================================
   UzTili — Design tokens
   Palette inspired by the Uzbekistan flag:
   blue sky, cotton white, fertile green, red thread of life
   ===================================================== */
:root {
  --color-blue: #0099B5;
  --color-blue-dark: #06758A;
  --color-green: #1EB53A;
  --color-green-dark: #158A2C;
  --color-red: #CE1126;
  --color-white: #FFFFFF;
  --color-ink: #10262C;
  --color-ink-soft: #3C565D;
  --color-bg: #F6FBFC;
  --color-bg-alt: #EAF7F0;
  --color-border: #DCEBEC;

  --font-display: 'Manrope', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;

  --shadow-sm: 0 2px 10px rgba(16, 38, 44, 0.06);
  --shadow-md: 0 12px 30px rgba(16, 38, 44, 0.10);

  --container-width: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-ink);
  line-height: 1.2;
  margin: 0 0 0.5em;
}

p { margin: 0 0 1em; }

a {
  color: var(--color-blue-dark);
  text-decoration: none;
}

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Skip link for keyboard users */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-ink);
  color: var(--color-white);
  padding: 10px 16px;
  z-index: 999;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 2px;
}

/* =====================================================
   Flag stripe — signature element
   Proportions echo the flag: blue / thin white+red / green
   ===================================================== */
.flag-stripe {
  height: 6px;
  width: 100%;
  background: linear-gradient(
    to right,
    var(--color-blue) 0%,
    var(--color-blue) 100%
  );
  display: flex;
}
.flag-stripe span { flex: 1; }
.flag-stripe .band-blue  { background: var(--color-blue); }
.flag-stripe .band-red   { background: var(--color-red); flex: 0 0 2px; }
.flag-stripe .band-white { background: var(--color-white); flex: 0 0 6px; }
.flag-stripe .band-green { background: var(--color-green); }

/* =====================================================
   Header
   ===================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 251, 252, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-auth {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.header-auth-link {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
}
.header-auth-link:hover { color: var(--color-blue-dark); }
.header-auth-btn {
  font-weight: 700;
  font-size: 0.85rem;
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--color-red);
  color: var(--color-white);
  white-space: nowrap;
}
.header-auth-btn:hover { background: #B10E20; }
.mobile-auth { display: none; }

.lang-toggle {
  display: flex;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  overflow: hidden;
  font-size: 0.78rem;
  font-weight: 700;
}
.lang-toggle a {
  padding: 6px 11px;
  color: var(--color-ink-soft);
}
.lang-toggle a.active {
  background: var(--color-blue);
  color: var(--color-white);
}

/* Honeypot — botlar uchun "ko'rinadigan", odamlar uchun yashirin maydon */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--color-ink);
}

.brand .logo-mark { width: 40px; height: 40px; flex-shrink: 0; }

.brand-tagline {
  display: block;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.7rem;
  color: var(--color-ink-soft);
  margin-top: 2px;
}

/* Navigation */
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0;
}

.main-nav a {
  display: inline-block;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  color: var(--color-ink-soft);
  font-weight: 600;
  font-size: 0.95rem;
  position: relative;
  transition: color 0.2s ease, background 0.2s ease;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 6px;
  height: 2px;
  background: var(--color-red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--color-blue-dark);
  background: var(--color-bg-alt);
}
.main-nav a:hover::after,
.main-nav a:focus-visible::after,
.main-nav a.active::after {
  transform: scaleX(1);
}
.main-nav a.active { color: var(--color-blue-dark); }

/* Dropdown submenu (Learn Uzbek) */
.main-nav li.has-dropdown { position: relative; }

.dropdown-trigger {
  display: inline-flex !important;
  align-items: center;
  gap: 6px;
}
.dropdown-trigger .caret { transition: transform 0.2s ease; margin-top: 1px; }

.dropdown-menu {
  list-style: none;
  margin: 0;
  padding: 8px;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 230px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
  z-index: 50;
}

.main-nav li.has-dropdown:hover .dropdown-menu,
.main-nav li.has-dropdown:focus-within .dropdown-menu,
.main-nav li.has-dropdown.is-open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-nav li.has-dropdown:hover .caret,
.main-nav li.has-dropdown.is-open .caret {
  transform: rotate(180deg);
}

.dropdown-menu li { margin: 0; }
.dropdown-menu a {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-ink-soft);
}
.dropdown-menu a::after { display: none; }
.dropdown-menu a:hover,
.dropdown-menu a:focus-visible,
.dropdown-menu a.active {
  background: var(--color-bg-alt);
  color: var(--color-blue-dark);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-ink);
  margin: 5px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* =====================================================
   Hero
   ===================================================== */
.hero {
  padding: 88px 0 72px;
  background:
    radial-gradient(circle at 85% 0%, rgba(30, 181, 58, 0.10), transparent 55%),
    radial-gradient(circle at 10% 20%, rgba(0, 153, 181, 0.12), transparent 50%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-green-dark);
  background: var(--color-bg-alt);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.eyebrow::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-red);
}

.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  max-width: 16ch;
}

.hero .lede {
  font-size: 1.15rem;
  color: var(--color-ink-soft);
  max-width: 48ch;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--color-red);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: #B10E20; box-shadow: var(--shadow-md); }

.btn-secondary {
  background: transparent;
  border-color: var(--color-blue);
  color: var(--color-blue-dark);
}
.btn-secondary:hover { background: var(--color-bg-alt); }

.hero-visual {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--color-blue) 0%, var(--color-blue-dark) 55%, var(--color-green-dark) 100%);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.hero-visual .stars {
  position: absolute;
  inset: 0;
  opacity: 0.9;
}

/* =====================================================
   Section grid / cards (the four pillars of the site)
   ===================================================== */
.section { padding: 64px 0; }
.section-alt { background: var(--color-bg-alt); }

.section-head {
  text-align: center;
  max-width: 60ch;
  margin: 0 auto 40px;
}
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); }
.section-head p { color: var(--color-ink-soft); }

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.pillar-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.pillar-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.pillar-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
}
.pillar-card:nth-child(1) .pillar-icon { background: var(--color-blue); }
.pillar-card:nth-child(2) .pillar-icon { background: var(--color-green); }
.pillar-card:nth-child(3) .pillar-icon { background: var(--color-red); }
.pillar-card:nth-child(4) .pillar-icon { background: var(--color-blue-dark); }

.pillar-card h3 { font-size: 1.1rem; margin-bottom: 4px; }
.pillar-card p { color: var(--color-ink-soft); font-size: 0.95rem; margin-bottom: 4px; }
.pillar-card .card-link {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-ink);
  margin-top: auto;
}
.pillar-card .card-link::after { content: ' →'; }

/* =====================================================
   Coming-soon placeholder (used by stub pages)
   ===================================================== */
.placeholder-page {
  padding: 100px 24px;
  text-align: center;
}
.placeholder-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-green-dark);
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 18px;
}
.placeholder-page h1 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); }
.placeholder-page p { color: var(--color-ink-soft); max-width: 50ch; margin: 0 auto 24px; }

/* =====================================================
   Footer
   ===================================================== */
.site-footer {
  background: var(--color-ink);
  color: #C9DBDE;
  padding: 56px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .brand { color: var(--color-white); }
.footer-brand p { color: #9FB6BA; margin-top: 12px; max-width: 32ch; }

.site-footer h4 {
  color: var(--color-white);
  font-size: 0.95rem;
  margin-bottom: 14px;
}

.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 10px; }
.site-footer a { color: #9FB6BA; }
.site-footer a:hover { color: var(--color-white); }

.newsletter-form {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.newsletter-form input[type="email"] {
  flex: 1;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
  color: var(--color-white);
  font-family: var(--font-body);
}
.newsletter-form input[type="email"]::placeholder { color: #7E969A; }
.newsletter-form button {
  background: var(--color-green);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-sm);
  padding: 0 18px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s ease;
}
.newsletter-form button:hover { background: var(--color-green-dark); }

.form-note { font-size: 0.8rem; margin-top: 8px; color: #7E969A; }
.form-note.success { color: var(--color-green); }
.form-note.error { color: #FF8A8A; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  font-size: 0.85rem;
  color: #7E969A;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom .flag-stripe { max-width: 120px; border-radius: 4px; overflow: hidden; }

/* =====================================================
   Responsive
   ===================================================== */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; aspect-ratio: 16/9; }
  .pillar-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .header-auth { display: none; }
  .mobile-auth {
    display: flex;
    gap: 10px;
    padding: 16px;
    border-top: 1px solid var(--color-border);
    margin-top: 8px;
  }
  .mobile-auth a {
    flex: 1;
    text-align: center;
    padding: 10px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.9rem;
    background: var(--color-bg-alt);
    color: var(--color-ink);
  }
  .main-nav {
    position: fixed;
    inset: 68px 0 0 0;
    background: var(--color-white);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    padding: 12px;
    border-top: 1px solid var(--color-border);
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; }
  .main-nav a { display: block; padding: 14px 16px; }
  .pillar-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }

  /* Dropdown becomes an inline accordion on mobile */
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: var(--color-bg-alt);
    margin: 4px 0 8px;
    max-height: 0;
    overflow: hidden;
    padding: 0 8px;
    transition: max-height 0.25s ease, padding 0.25s ease;
  }
  .main-nav li.has-dropdown.is-open .dropdown-menu {
    max-height: 400px;
    padding: 8px;
  }
}

/* =====================================================
   Sidebar layout (used by Learn Uzbek sub-pages)
   ===================================================== */
.page-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  padding: 48px 24px 80px;
  align-items: start;
}

.sidebar { position: sticky; top: 96px; }

.sidebar-box {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 24px;
}

.sidebar-box-header {
  padding: 16px 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-white);
  background: linear-gradient(120deg, var(--color-blue) 0%, var(--color-blue-dark) 100%);
}

.sidebar-box.alt .sidebar-box-header {
  background: linear-gradient(120deg, var(--color-green) 0%, var(--color-green-dark) 100%);
}

.sidebar-list {
  list-style: none;
  margin: 0;
  padding: 8px;
}
.sidebar-list li { border-bottom: 1px solid var(--color-border); }
.sidebar-list li:last-child { border-bottom: none; }

.sidebar-list a {
  display: block;
  padding: 13px 12px;
  font-weight: 600;
  font-size: 0.94rem;
  color: var(--color-ink-soft);
  border-radius: var(--radius-sm);
  border-left: 3px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.sidebar-list a:hover,
.sidebar-list a:focus-visible {
  background: var(--color-bg-alt);
  color: var(--color-blue-dark);
}
.sidebar-list a.active {
  background: var(--color-bg-alt);
  color: var(--color-blue-dark);
  border-left-color: var(--color-red);
}

.article-content h2 {
  font-size: 1.5rem;
  margin-top: 2em;
  padding-top: 0.3em;
  border-top: 1px solid var(--color-border);
}
.article-content h2:first-child { margin-top: 0; border-top: none; padding-top: 0; }
.article-content h3 { font-size: 1.15rem; margin-top: 1.6em; color: var(--color-blue-dark); }
.article-content p, .article-content li { color: var(--color-ink-soft); font-size: 1.02rem; }
.article-content ul, .article-content ol { padding-left: 1.3em; }
.article-content li { margin-bottom: 0.4em; }

.article-header { margin-bottom: 8px; }
.article-eyebrow {
  display: inline-block;
  background: var(--color-bg-alt);
  color: var(--color-green-dark);
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.article-meta {
  font-size: 0.88rem;
  color: var(--color-ink-soft);
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.vocab-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2em 0 1.8em;
  font-size: 0.96rem;
}
.vocab-table th, .vocab-table td {
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  text-align: left;
}
.vocab-table th {
  background: var(--color-bg-alt);
  font-family: var(--font-display);
  color: var(--color-ink);
}
.vocab-table tr:nth-child(even) td { background: #FBFEFE; }

.callout {
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-green);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin: 1.6em 0;
}
.callout p:last-child { margin-bottom: 0; }
.callout.tip { border-left-color: var(--color-blue); }
.callout.warn { border-left-color: var(--color-red); }

.next-page-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}
.next-page-nav a {
  font-weight: 700;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-alt);
  color: var(--color-blue-dark);
}
.next-page-nav a:hover { background: var(--color-border); }

@media (max-width: 960px) {
  .page-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}

/* =====================================================
   Dictionary (Lug'at)
   ===================================================== */
.dict-search-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  padding: 20px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.dict-search-bar input[type="text"],
.dict-search-bar select {
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--color-bg);
}
.dict-search-bar input[type="text"] { flex: 2; min-width: 200px; }
.dict-search-bar select { flex: 1; min-width: 160px; }
.dict-search-bar button {
  padding: 11px 22px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--color-blue);
  color: var(--color-white);
  font-weight: 700;
  cursor: pointer;
}
.dict-search-bar button:hover { background: var(--color-blue-dark); }

.dict-result-count {
  color: var(--color-ink-soft);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.dict-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.dict-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
}
.dict-card .dict-word {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--color-ink);
}
.dict-card .dict-pos {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-blue-dark);
  background: var(--color-bg-alt);
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: 8px;
}
.dict-card .dict-translation { color: var(--color-ink-soft); margin: 6px 0 0; }
.dict-card .dict-category {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.78rem;
  color: var(--color-green-dark);
}

.pagination {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 32px;
  flex-wrap: wrap;
}
.pagination a, .pagination span {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  color: var(--color-ink-soft);
  font-weight: 600;
  font-size: 0.9rem;
}
.pagination a:hover { background: var(--color-bg-alt); }
.pagination .current { background: var(--color-blue); border-color: var(--color-blue); color: var(--color-white); }

@media (max-width: 600px) {
  .dict-grid { grid-template-columns: 1fr; }
}

/* =====================================================
   Flashcards (Kartochkalar)
   ===================================================== */
.deck-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.deck-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.deck-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.deck-card .deck-badge {
  display: inline-block;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}
.deck-card.blue .deck-badge { background: var(--color-blue); }
.deck-card.green .deck-badge { background: var(--color-green); }
.deck-card.red .deck-badge { background: var(--color-red); }
.deck-card h3 { margin-bottom: 6px; }
.deck-card p { color: var(--color-ink-soft); font-size: 0.92rem; margin-bottom: 12px; }
.deck-card .deck-count { font-size: 0.82rem; color: var(--color-ink-soft); }

.flashcard-practice {
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
}
.flashcard-progress {
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  margin-bottom: 16px;
}
.flashcard-stage {
  perspective: 1200px;
  height: 260px;
  margin-bottom: 24px;
}
.flashcard-inner {
  position: relative;
  width: 100%;
  height: 100%;
  cursor: pointer;
  transition: transform 0.5s;
  transform-style: preserve-3d;
}
.flashcard-inner.is-flipped { transform: rotateY(180deg); }
.flashcard-face {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  border-radius: var(--radius-lg);
  backface-visibility: hidden;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.6rem;
  box-shadow: var(--shadow-md);
}
.flashcard-face.front {
  background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-blue-dark) 100%);
  color: var(--color-white);
}
.flashcard-face.back {
  background: var(--color-white);
  color: var(--color-ink);
  border: 2px solid var(--color-green);
  transform: rotateY(180deg);
}
.flashcard-hint {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin-bottom: 20px;
}
.flashcard-controls {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.flashcard-controls button {
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 700;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 0.9rem;
}
.btn-know { background: var(--color-green); color: var(--color-white); }
.btn-know:hover { background: var(--color-green-dark); }
.btn-dontknow { background: transparent; border-color: var(--color-red); color: var(--color-red); }
.btn-dontknow:hover { background: #FCEBEC; }
.btn-shuffle { background: var(--color-bg-alt); color: var(--color-ink-soft); }
.flashcard-done {
  text-align: center;
  padding: 40px 20px;
}

@media (max-width: 600px) {
  .deck-grid { grid-template-columns: 1fr; }
}

/* =====================================================
   Blog
   ===================================================== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.blog-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.blog-card .blog-category {
  display: inline-block;
  align-self: flex-start;
  background: var(--color-bg-alt);
  color: var(--color-green-dark);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.blog-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.blog-card h3 a { color: var(--color-ink); }
.blog-card h3 a:hover { color: var(--color-blue-dark); }
.blog-card p { color: var(--color-ink-soft); font-size: 0.92rem; flex: 1; }
.blog-card .blog-date { font-size: 0.8rem; color: var(--color-ink-soft); margin-top: 12px; }

.blog-post-header { margin-bottom: 24px; }
.blog-post-body p { margin-bottom: 1.2em; color: var(--color-ink-soft); font-size: 1.02rem; }
.blog-post-body a { text-decoration: underline; }

@media (max-width: 960px) {
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .blog-grid { grid-template-columns: 1fr; }
}

/* =====================================================
   Admin panel
   ===================================================== */
.admin-body {
  background: var(--color-bg);
  min-height: 100vh;
}
.admin-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}
.admin-sidebar {
  background: var(--color-ink);
  color: #C9DBDE;
  padding: 24px 16px;
}
.admin-sidebar .admin-brand {
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 28px;
  display: block;
}
.admin-nav a {
  display: block;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  color: #C9DBDE;
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 4px;
}
.admin-nav a:hover, .admin-nav a.active {
  background: rgba(255,255,255,0.08);
  color: var(--color-white);
}
.admin-nav .admin-nav-divider {
  border-top: 1px solid rgba(255,255,255,0.12);
  margin: 16px 0;
}

.admin-main { padding: 32px 40px; max-width: 1100px; }
.admin-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 12px;
}
.admin-topbar h1 { margin: 0; font-size: 1.5rem; }

.admin-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}
.admin-stat-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
}
.admin-stat-card .stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-blue-dark);
}
.admin-stat-card .stat-label { color: var(--color-ink-soft); font-size: 0.88rem; }

.admin-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
}
.admin-card h2 { font-size: 1.15rem; margin-bottom: 16px; }

.admin-form label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: 6px;
  color: var(--color-ink);
}
.admin-form input[type="text"],
.admin-form input[type="date"],
.admin-form input[type="password"],
.admin-form textarea,
.admin-form select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  margin-bottom: 16px;
  background: var(--color-bg);
}
.admin-form textarea { min-height: 140px; resize: vertical; }
.admin-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.admin-btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
}
.admin-btn-primary { background: var(--color-blue); color: var(--color-white); }
.admin-btn-primary:hover { background: var(--color-blue-dark); }
.admin-btn-danger { background: transparent; color: var(--color-red); border: 1px solid var(--color-red); }
.admin-btn-danger:hover { background: #FCEBEC; }
.admin-btn-secondary { background: var(--color-bg-alt); color: var(--color-ink); }

.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}
.admin-table th { color: var(--color-ink-soft); font-weight: 700; font-size: 0.78rem; text-transform: uppercase; }
.admin-table td.actions { white-space: nowrap; text-align: right; }
.admin-table td.actions a { margin-left: 10px; font-weight: 700; font-size: 0.85rem; }

.admin-alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 0.9rem;
  font-weight: 600;
}
.admin-alert-success { background: #E6F7EC; color: var(--color-green-dark); }
.admin-alert-error { background: #FCEBEC; color: var(--color-red); }

.admin-login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--color-blue) 0%, var(--color-blue-dark) 60%, var(--color-green-dark) 100%);
  padding: 24px;
}
.admin-login-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow-md);
}
.admin-login-card .brand { justify-content: center; margin-bottom: 24px; }

@media (max-width: 860px) {
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { display: flex; align-items: center; gap: 8px; overflow-x: auto; padding: 14px 16px; }
  .admin-nav { display: flex; gap: 4px; }
  .admin-nav .admin-nav-divider { display: none; }
  .admin-main { padding: 24px 20px; }
  .admin-stat-grid { grid-template-columns: repeat(2, 1fr); }
  .admin-form-row { grid-template-columns: 1fr; }
}