/* Exercise guest — нүүр хуудас (schedule харагдах байдалтай, тусдаа CSS) */

*, *::before, *::after { box-sizing: border-box; }

html { margin: 0; padding: 0; height: 100%; }

.home-page {
  --home-bg: #f8fafc;
  --home-bg2: #eef6ff;
  --home-text: #1e293b;
  --home-muted: #64748b;
  --home-accent: #2c8cff;
  --home-accent-dark: #1a6fd4;
  --home-border: #e2e8f0;
  --home-card: #ffffff;
  --home-shadow: 0 4px 24px rgba(44, 140, 255, 0.08);
  min-height: 100%;
  min-height: 100dvh;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  font-family: 'Roboto Condensed', sans-serif;
  color: var(--home-text);
  line-height: 1.5;
  background: linear-gradient(165deg, var(--home-bg) 0%, var(--home-bg2) 55%, #f0f7ff 100%);
}

.home-page > main { flex: 1 0 auto; }
.home-page a { color: inherit; text-decoration: none; }

.home-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--home-border);
}

.home-header__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.home-header__right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.lang-select {
  appearance: none;
  -webkit-appearance: none;
  background: #f1f5f9;
  border: 1px solid var(--home-border, #e2e8f0);
  border-radius: 10px;
  padding: 0.45rem 1.55rem 0.45rem 0.55rem;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--home-text, #1e293b);
  cursor: pointer;
  line-height: 1.2;
  min-width: 3.4rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.45rem center;
  transition: border-color 0.15s, background-color 0.15s;
}

.lang-select:hover,
.lang-select:focus {
  outline: none;
  border-color: var(--home-accent, #2c8cff);
  background-color: #fff;
}

.home-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--home-text);
}

.home-brand__logo {
  height: 48px;
  width: auto;
  max-width: 220px;
  display: block;
  object-fit: contain;
}

.home-brand__icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--home-accent), #22cee9);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.home-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.home-nav__link {
  display: inline-block;
  padding: 0.5rem 1rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--home-muted);
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}

.home-nav__link:hover {
  color: var(--home-accent);
  background: rgba(44, 140, 255, 0.06);
}

.home-nav__link--active {
  color: var(--home-accent);
  background: rgba(44, 140, 255, 0.08);
}

.home-hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 2rem;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 3rem;
}

.home-hero__visual {
  display: flex;
  justify-content: center;
  padding: 1rem 0;
  position: relative;
}

.home-mock {
  position: relative;
  width: min(100%, 480px);
  background: linear-gradient(160deg, #0f172a 0%, #1e293b 55%, #334155 100%);
  border-radius: 18px;
  padding: 12px;
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow:
    0 28px 56px rgba(15, 23, 42, 0.22),
    0 8px 18px rgba(30, 64, 175, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  animation: home-mock-float 6s ease-in-out infinite;
}

.home-mock__glow {
  position: absolute;
  top: -18%;
  left: -8%;
  right: -8%;
  height: 55%;
  background: radial-gradient(ellipse at center, rgba(44, 140, 255, 0.28), transparent 68%);
  pointer-events: none;
  z-index: 0;
  animation: home-mock-glow 5s ease-in-out infinite alternate;
}

.home-mock__screen {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, #f1f5f9 0%, #eef6ff 48%, #f8fafc 100%);
  border-radius: 10px;
  overflow: hidden;
  min-height: 300px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.home-mock__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  background: linear-gradient(105deg, #1d4ed8 0%, #2563eb 45%, #38bdf8 130%);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  flex-shrink: 0;
}

.home-mock__dots {
  display: inline-flex;
  gap: 4px;
  flex-shrink: 0;
}

.home-mock__dot {
  display: block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.08);
}
.home-mock__dot--r { background: #fda4af; }
.home-mock__dot--y { background: #fde047; }
.home-mock__dot--g { background: #86efac; }

.home-mock__bar-title {
  flex: 1 1 auto;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0.96;
}

.home-mock__bar-chip {
  flex: 0 0 auto;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.22);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.home-mock__body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px;
  flex: 1 1 auto;
}

.home-mock__topic {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  flex-shrink: 0;
}

.home-mock__topic-label {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(44, 140, 255, 0.12);
  color: #1d4ed8;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.home-mock__topic-text {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  min-width: 0;
}

.home-mock__topic-name {
  font-size: 0.75rem;
  font-weight: 700;
  color: #0f172a;
}

.home-mock__topic-formula {
  font-size: 0.68rem;
  font-weight: 600;
  color: #64748b;
}

.home-mock__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.home-mock__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: calc(50% - 4px);
  box-sizing: border-box;
  padding: 10px 10px 10px 12px;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
  overflow: hidden;
  min-height: 88px;
}

.home-mock__card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: #94a3b8;
}

.home-mock__card--easy::before { background: linear-gradient(180deg, #34d399, #059669); }
.home-mock__card--mid::before { background: linear-gradient(180deg, #60a5fa, #2563eb); }
.home-mock__card--exam::before { background: linear-gradient(180deg, #fbbf24, #d97706); }
.home-mock__card--stats::before { background: linear-gradient(180deg, #38bdf8, #0284c7); }

.home-mock__card:nth-child(1) { animation: home-card-in 0.55s ease 0.05s both; }
.home-mock__card:nth-child(2) { animation: home-card-in 0.55s ease 0.14s both; }
.home-mock__card:nth-child(3) { animation: home-card-in 0.55s ease 0.23s both; }
.home-mock__card:nth-child(4) { animation: home-card-in 0.55s ease 0.32s both; }

.home-mock:hover .home-mock__card {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.1);
  border-color: #cbd5e1;
}

.home-mock__card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.home-mock__icon {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(44, 140, 255, 0.1);
  color: #2563eb;
  flex: 0 0 24px;
  overflow: hidden;
}

.home-mock__icon svg,
.home-mock__card svg {
  width: 14px !important;
  height: 14px !important;
  max-width: 14px;
  max-height: 14px;
  display: block;
  flex-shrink: 0;
}

.home-mock__card--easy .home-mock__icon {
  background: rgba(16, 185, 129, 0.12);
  color: #059669;
}
.home-mock__card--mid .home-mock__icon {
  background: rgba(37, 99, 235, 0.12);
  color: #1d4ed8;
}
.home-mock__card--exam .home-mock__icon {
  background: rgba(217, 119, 6, 0.12);
  color: #b45309;
}
.home-mock__card--stats .home-mock__icon {
  background: rgba(2, 132, 199, 0.12);
  color: #0284c7;
}

.home-mock__formula {
  display: block;
  color: #0f172a;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin: 0;
}

.home-mock__meta {
  display: block;
  margin-top: auto;
  font-size: 0.68rem;
  font-weight: 500;
  color: #64748b;
  line-height: 1.3;
}

.home-mock__badge {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.12);
  color: #047857;
  font-weight: 700;
  font-size: 0.62rem;
  letter-spacing: 0.01em;
  white-space: nowrap;
  line-height: 1.4;
}

.home-mock__badge--mid {
  background: rgba(37, 99, 235, 0.12);
  color: #1d4ed8;
}

.home-mock__badge--exam {
  background: rgba(217, 119, 6, 0.14);
  color: #b45309;
}

.home-mock__badge--stats {
  background: rgba(2, 132, 199, 0.12);
  color: #0369a1;
}

.home-mock__progress {
  height: 4px;
  margin-top: 2px;
  border-radius: 999px;
  background: #e2e8f0;
  overflow: hidden;
}

.home-mock__progress-bar {
  display: block;
  height: 100%;
  width: 78%;
  border-radius: inherit;
  background: linear-gradient(90deg, #38bdf8, #2563eb);
  -webkit-transform-origin: left center;
  transform-origin: left center;
  animation: home-progress-fill 1.4s ease 0.45s both;
}

@keyframes home-mock-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes home-mock-glow {
  from { opacity: 0.55; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1.04); }
}

@keyframes home-card-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes home-progress-fill {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

@media (prefers-reduced-motion: reduce) {
  .home-mock,
  .home-mock__glow,
  .home-mock__card,
  .home-mock__progress-bar {
    animation: none !important;
  }
  .home-mock:hover .home-mock__card {
    transform: none;
  }
}

.home-hero__eyebrow {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--home-accent);
  background: rgba(44, 140, 255, 0.1);
  border-radius: 999px;
}

.home-hero__title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.home-hero__subtitle {
  margin: 0 0 1.25rem;
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 500;
  color: var(--home-muted);
}

.home-hero__tagline {
  margin: 0 0 2rem;
  font-size: 1.05rem;
  color: var(--home-muted);
  line-height: 1.6;
}

.home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.home-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.home-btn--primary,
a.home-btn--primary {
  background: var(--home-accent);
  color: #fff !important;
  box-shadow: 0 4px 14px rgba(44, 140, 255, 0.35);
}

.home-btn--primary:hover { background: var(--home-accent-dark); transform: translateY(-1px); }

.home-btn--outline {
  background: transparent;
  color: var(--home-accent);
  border: 2px solid var(--home-accent);
}

.home-btn--outline:hover { background: rgba(44, 140, 255, 0.06); }

.home-features {
  max-width: 1180px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 2rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.home-feature {
  text-align: center;
  padding: 1.75rem 1.25rem;
  background: var(--home-card);
  border: 1px solid var(--home-border);
  border-radius: 12px;
  box-shadow: var(--home-shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.home-feature:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(44, 140, 255, 0.12);
}

.home-feature__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(44, 140, 255, 0.1);
  color: var(--home-accent);
}

.home-feature__icon svg { width: 24px; height: 24px; }

.home-feature__title {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
}

.home-feature__desc {
  margin: 0;
  font-size: 0.9rem;
  color: var(--home-muted);
}

.home-footer {
  flex-shrink: 0;
  margin-top: auto;
  border-top: 1px solid var(--home-border);
  padding: 0.85rem 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--home-muted);
  background: rgba(255, 255, 255, 0.6);
}

.home-footer p { margin: 0; }

@media (max-width: 960px) {
  .home-hero {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  .home-hero__actions { justify-content: center; }
  .home-features { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .home-header__inner { flex-wrap: wrap; justify-content: center; }
  .home-header__right { justify-content: center; }
  .home-nav { flex-wrap: wrap; justify-content: center; }
  .home-features { grid-template-columns: 1fr; }
}