/* ============================================================
   landing.css — section layout & components for the landing page
   Depends on tokens/primitives from base.css.
   ============================================================ */

/* ===================== Nav ===================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.nav.scrolled {
  border-bottom-color: var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  color: var(--accent);
  font-size: 1.05rem;
}

/* Logo: a 512px source rendered at 22px stays crisp on 2–3× mobile screens. */
.brand-mark img {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  object-fit: contain;
  image-rendering: auto;
}

.nav-links {
  display: flex;
  gap: 1.6rem;
  margin-left: auto;
}

.nav-links a {
  color: var(--text-dim);
  font-size: 0.94rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  font-size: 1.05rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color 0.15s ease;
}

.theme-toggle:hover {
  border-color: var(--accent-dim);
}

.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0 9px;
}

.nav-burger span {
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-burger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-burger.open span:nth-child(2) {
  opacity: 0;
}
.nav-burger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===================== Hero ===================== */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(3rem, 7vw, 6rem) 0 3.5rem;
}

.hero-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  width: 900px;
  max-width: 120vw;
  height: 700px;
  transform: translateX(-50%);
  background: radial-gradient(
    closest-side,
    rgba(0, 224, 138, 0.16),
    rgba(0, 224, 138, 0.04) 60%,
    transparent 75%
  );
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
}

.hero-title {
  font-size: clamp(2.3rem, 5.2vw, 3.8rem);
  font-weight: 800;
  margin-bottom: 1.1rem;
}

.hero-sub {
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  color: var(--text-dim);
  max-width: 34ch;
  margin: 0 0 1.8rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.6rem;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* ---------- Hero app mockup ---------- */
.hero-app {
  perspective: 1600px;
}

.window {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: rotateY(-7deg) rotateX(3deg);
  transition: transform 0.4s ease;
}

.hero-app:hover .window {
  transform: rotateY(0deg) rotateX(0deg);
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-card) 60%, transparent);
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: inline-block;
}
.dot-r {
  background: #ff5f57;
}
.dot-y {
  background: #febc2e;
}
.dot-g {
  background: #28c840;
}

.window-title {
  margin-left: auto;
  margin-right: auto;
  font-size: 0.8rem;
  color: var(--text-dim);
  font-weight: 600;
}

.window-search {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.9rem;
  padding: 0.55rem 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.search-icon {
  color: var(--text-dim);
  font-size: 1.05rem;
}

.window-search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
}

.window-cards {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 0 0.9rem 1rem;
  max-height: 320px;
  overflow: hidden;
}

.mini-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.7rem 0.8rem;
  background: var(--bg-card);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.mini-card:hover {
  border-color: var(--accent-dim);
}

.mini-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.mini-title {
  font-size: 0.9rem;
  font-weight: 600;
}

.mini-body {
  margin: 0.35rem 0 0;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.74rem;
  color: var(--text-dim);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.mini-actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-shrink: 0;
}

.mini-star {
  background: none;
  border: none;
  font-size: 0.85rem;
  line-height: 1;
  padding: 2px;
  opacity: 0.55;
}
.mini-star.on {
  color: var(--star);
  opacity: 1;
}

.mini-copy {
  background: none;
  border: none;
  font-size: 0.85rem;
  color: var(--text-dim);
  padding: 2px 4px;
  border-radius: 6px;
}
.mini-copy:hover {
  color: var(--accent);
  background: var(--bg-elev);
}

.mini-cat {
  font-size: 0.66rem;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: 999px;
  padding: 0.05rem 0.5rem;
  white-space: nowrap;
}

.window-empty {
  margin: 0;
  padding: 0 0.9rem 1.2rem;
  font-size: 0.82rem;
  color: var(--text-dim);
  text-align: center;
}

/* ---------- Trust strip ---------- */
.trust {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  list-style: none;
  margin: clamp(2.5rem, 5vw, 4rem) 0 0;
  padding: 1.4rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.trust li {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  text-align: center;
}

.trust strong {
  font-size: 1rem;
}

.trust span {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ===================== Sections ===================== */
.section {
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
}

.section-alt {
  background: var(--bg-elev);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head {
  max-width: 620px;
  margin: 0 auto 2.8rem;
  text-align: center;
}

.section-head h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  font-weight: 800;
}

.section-head p {
  color: var(--text-dim);
  margin: 0.8rem 0 0;
  font-size: 1.05rem;
}

/* ---------- Features ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.feature:hover {
  border-color: var(--accent-dim);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.feature-ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  font-size: 1.3rem;
  border-radius: 12px;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
  margin-bottom: 1rem;
}

.feature h3 {
  font-size: 1.12rem;
  margin-bottom: 0.4rem;
}

.feature p {
  color: var(--text-dim);
  margin: 0;
  font-size: 0.95rem;
}

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
}

.step {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.8rem 1.6rem;
}

.step-num {
  display: inline-block;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 0.7rem;
}

.step h3 {
  font-size: 1.15rem;
  margin-bottom: 0.45rem;
}

.step p {
  color: var(--text-dim);
  margin: 0;
  font-size: 0.95rem;
}

/* ---------- Why local-first ---------- */
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
}

.why-copy h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

.why-copy > p {
  color: var(--text-dim);
  font-size: 1.05rem;
  margin: 0 0 1.4rem;
}

.why-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.why-list li {
  font-size: 0.98rem;
}

.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glow);
  padding: 1.2rem 1.4rem;
}

.codeblock {
  margin: 0;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--text);
  overflow-x: auto;
}

.c-key {
  color: var(--text-dim);
}
.c-prop {
  color: #4df0ff;
}
.c-str {
  color: var(--accent);
}
.c-bool {
  color: var(--star);
}
.c-cmt {
  color: var(--text-dim);
  font-style: italic;
}

/* ---------- FAQ ---------- */
.faq-wrap {
  max-width: 760px;
}

.faq {
  display: grid;
  gap: 0.7rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 1.2rem;
  transition: border-color 0.15s ease;
}

.faq-item[open] {
  border-color: var(--accent-dim);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.1rem 0;
  font-weight: 600;
  font-size: 1.02rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  color: var(--accent);
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  margin: 0;
  padding: 0 0 1.1rem;
  color: var(--text-dim);
  font-size: 0.97rem;
}

/* ===================== Final CTA ===================== */
.cta {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
  position: relative;
  overflow: hidden;
}

.cta-inner {
  position: relative;
  text-align: center;
  background: linear-gradient(160deg, var(--bg-elev), var(--bg-card));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(2.5rem, 6vw, 4rem) 1.5rem;
  box-shadow: var(--glow);
}

.cta-inner h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 0.7rem;
}

.cta-inner p {
  color: var(--text-dim);
  font-size: 1.08rem;
  margin: 0 0 1.6rem;
}

/* ===================== Footer ===================== */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  background: var(--bg-elev);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
}

.footer-tag {
  margin: 0.2rem 0 0;
  color: var(--text-dim);
}

.footer-meta {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* ===================== Toast ===================== */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--accent-dim);
  border-radius: 10px;
  padding: 0.7rem 1.2rem;
  font-size: 0.92rem;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===================== Responsive ===================== */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-sub {
    max-width: 52ch;
  }
  .hero-app {
    /* Headline leads on mobile; the mockup follows the copy. */
    max-width: 460px;
    margin-inline: auto;
  }
  .window {
    transform: none;
  }
  .feature-grid,
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .why-grid {
    grid-template-columns: 1fr;
  }
  .trust {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  /* Slide-down mobile menu */
  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    margin: 0;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 1.5rem 1rem;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links a {
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 1rem;
  }
  .nav-cta {
    display: none;
  }
  .nav-burger {
    display: flex;
  }
  /* With the links collapsed into the dropdown, push the toggle + burger
     to the far right of the bar. */
  .nav-actions {
    margin-left: auto;
  }
  .feature-grid,
  .steps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .trust {
    grid-template-columns: 1fr;
  }
}