/* ── LandingPage extras (global tokens are in index.css) ── */
:root {
  --bg-alt: #1d1d1f;
}

/* ── Base ─────────────────────────────────────────────── */
.landing {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Nav ──────────────────────────────────────────────── */
.landing-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 52px;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
}

.landing-nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.3px;
  font-family: var(--font);
}

.landing-nav-brand svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
}

.landing-nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 400;
  border-radius: var(--radius-pill);
  transition: color 0.2s, background 0.2s;
}

.nav-link svg {
  width: 15px;
  height: 15px;
}

.nav-link:hover {
  color: var(--text);
  background: #2c2c2e;
}

.nav-btn-primary {
  padding: 6px 16px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  transition: background 0.2s, filter 0.2s;
}

.nav-btn-primary:hover {
  filter: brightness(1.1);
}

/* ── Nav auth skeleton ────────────────────────────────── */
.nav-auth-skeleton {
  width: 80px;
  height: 28px;
  background: var(--bg-elevated);
  border-radius: var(--radius-pill);
  animation: skeleton-pulse 1.4s ease-in-out infinite;
}

@keyframes skeleton-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ── User menu ────────────────────────────────────────── */
.user-menu {
  position: relative;
}

.user-menu-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 4px 12px 4px 6px;
  cursor: pointer;
  color: var(--text);
  font-size: 13px;
  font-weight: 400;
  transition: background 0.2s;
}

.user-menu-trigger:hover {
  background: rgba(255, 255, 255, 0.1);
}

.user-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.user-avatar-initials {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
}

.user-avatar-lg {
  width: 36px;
  height: 36px;
  font-size: 15px;
}

.user-menu-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-menu-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  background: rgba(30, 30, 32, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-hi);
  border-radius: var(--radius);
  min-width: 210px;
  z-index: 200;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}

.user-menu-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 16px 12px;
}

.user-menu-uname {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.user-menu-email {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 140px;
}

.user-menu-divider {
  height: 1px;
  background: var(--border);
}

.user-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 16px;
  color: var(--text-muted);
  font-size: 13px;
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s, color 0.15s;
}

.user-menu-item:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.user-menu-signout {
  color: #ff453a;
}

.user-menu-signout:hover {
  background: rgba(255, 69, 58, 0.08);
  color: #ff453a;
}

/* ── Hero ─────────────────────────────────────────────── */
.landing-hero {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  align-items: stretch;
  gap: 0;
  min-height: calc(100vh - 52px);
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

.hero-left {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0;
  padding: 80px 60px 80px 80px;
}

.hero-eyebrow {
  margin: 0 0 20px;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.4px;
  line-height: 1.5;
  text-transform: uppercase;
}

.hero-title {
  margin: 0 0 20px;
  font-size: clamp(40px, 5vw, 72px);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -2px;
  color: var(--text);
}

.hero-accent {
  background: linear-gradient(135deg, #0071e3 0%, #30aaff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  margin: 0 0 36px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 460px;
  font-weight: 400;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.cta-primary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  transition: filter 0.2s, transform 0.2s;
  border: none;
  letter-spacing: -0.1px;
}

.cta-primary svg {
  width: 16px;
  height: 16px;
}

.cta-primary:hover {
  filter: brightness(1.12);
  transform: scale(1.02);
}

.cta-secondary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  background: #2c2c2e;
  border: none;
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  transition: background 0.2s, transform 0.2s;
  letter-spacing: -0.1px;
}

.cta-secondary svg {
  width: 16px;
  height: 16px;
}

.cta-secondary:hover {
  background: #3a3a3c;
  transform: scale(1.02);
}

/* Trust line under CTA buttons */
.hero-trust-line {
  margin: 6px 0 0;
  font-size: 11.5px;
  font-weight: 400;
  color: #48484a;
  letter-spacing: 0.02em;
}

/* Specs strip */
.hero-specs {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 400;
  color: #8e8e93;
  line-height: 1.8;
}

.spec-pill {
  display: inline;
}

.spec-pill + .spec-pill::before {
  content: ' · ';
  color: #48484a;
}

.spec-sep {
  display: none;
}

/* Hero right — image full-bleed */
.hero-right {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 52px);
}

.schematic-svg {
  width: 100%;
  max-width: 460px;
  height: auto;
  border-radius: var(--radius);
  filter: drop-shadow(0 16px 48px rgba(0, 0, 0, 0.8));
}

.hero-preview-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* ── Sections ─────────────────────────────────────────── */
.landing-section {
  padding: 100px 80px;
  max-width: 1240px;
  margin: 0 auto;
}

.landing-section-alt {
  max-width: 100%;
  background: var(--bg-alt);
  padding: 100px 0;
}

.landing-section-alt .section-header,
.landing-section-alt .features-grid {
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 80px;
  padding-right: 80px;
}

.section-header {
  margin-bottom: 52px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  font-family: var(--font);
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.4px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-title {
  margin: 0 0 14px;
  font-size: clamp(28px, 3.5vw, 52px);
  font-weight: 700;
  letter-spacing: -1.5px;
  color: var(--text);
  line-height: 1.07;
}

.section-sub {
  margin: 0;
  font-size: 17px;
  font-weight: 400;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.7;
}

/* ── Boards — Apple product grid style ────────────────── */
.board-group {
  margin-bottom: 64px;
}

.board-group-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

/* Solid chip badge — group color background, white text */
.board-group-engine {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: var(--grp-color, #0071e3);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-pill);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.4px;
  white-space: nowrap;
}

.board-group-label {
  font-family: var(--font);
  font-size: 15px;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: -0.1px;
}

/* Apple-style responsive grid */
.boards-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
  gap: 16px;
}

/* Apple product tile */
.board-card-sm {
  background: #141416;
  border-radius: 16px;
  padding: 20px 14px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transition: transform 0.32s cubic-bezier(0.34, 1.46, 0.64, 1),
              box-shadow 0.32s ease;
  cursor: default;
  position: relative;
}

.board-card-sm:hover {
  transform: scale(1.035);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55);
}

.board-name-sm {
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  text-align: center;
  line-height: 1.35;
  letter-spacing: -0.2px;
}

.board-chip-sm {
  font-size: 11px;
  font-family: var(--mono);
  color: var(--text-dim);
  text-align: center;
  margin-top: -6px;
  line-height: 1.4;
}

/* Uniform image container — all cards same height */
.board-img-box {
  width: 100%;
  height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.board-img-box img {
  max-width: 90px;
  max-height: 110px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 14px rgba(0, 0, 0, 0.5));
}

.board-img-box .board-svg {
  max-width: 110px;
  max-height: 100px;
  width: auto;
  height: auto;
}

.board-img-sm {
  width: 80px;
  height: auto;
  max-height: 110px;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.45));
}

.board-img-tall {
  max-height: 140px;
}

/* ── Legacy boards-grid (kept for compat) ─────────────── */
.boards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}

.board-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 16px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  transition: border-color 0.25s, box-shadow 0.25s;
  position: relative;
}

.board-card:hover {
  border-color: var(--border-hi);
  box-shadow: var(--shadow-sm);
}

.board-svg {
  width: 100%;
  max-width: 210px;
  height: auto;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
}

/* Wokwi element board wrappers */
.board-element-wrap {
  overflow: hidden;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
  flex-shrink: 0;
}

/* Uno: 274×202px → scale 0.73 → 200×147px */
.board-element-uno {
  width: 200px;
  height: 147px;
}
.board-element-uno > wokwi-arduino-uno {
  display: block;
  transform: scale(0.73);
  transform-origin: top left;
}

/* Nano: 170×67px → scale 1.18 → 200×79px */
.board-element-nano {
  width: 200px;
  height: 79px;
}
.board-element-nano > wokwi-arduino-nano {
  display: block;
  transform: scale(1.18);
  transform-origin: top left;
}

/* Mega: 388×192px → scale 0.515 → 200×99px */
.board-element-mega {
  width: 200px;
  height: 99px;
}
.board-element-mega > wokwi-arduino-mega {
  display: block;
  transform: scale(0.515);
  transform-origin: top left;
}

/* Compact sizes for board-card-sm (130-160px wide) */
.board-card-sm .board-element-uno  { width: 120px; height: 88px; overflow: hidden; }
.board-card-sm .board-element-uno > wokwi-arduino-uno  { display: block; transform: scale(0.44); transform-origin: top left; }
.board-card-sm .board-element-nano { width: 120px; height: 48px; overflow: hidden; }
.board-card-sm .board-element-nano > wokwi-arduino-nano { display: block; transform: scale(0.71); transform-origin: top left; }
.board-card-sm .board-element-mega { width: 120px; height: 59px; overflow: hidden; }
.board-card-sm .board-element-mega > wokwi-arduino-mega { display: block; transform: scale(0.31); transform-origin: top left; }
.board-card-sm .board-element-esp32 { width: 60px; height: 112px; overflow: hidden; }
.board-card-sm .board-element-esp32 > wokwi-esp32-devkit-v1 { display: block; transform: scale(0.56); transform-origin: top left; }

.board-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  width: 100%;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.board-name {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.2px;
}

.board-chip {
  font-size: 11px;
  font-family: var(--mono);
  color: var(--text-dim);
}

.board-badge {
  display: inline-block;
  margin-top: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 10px;
  font-weight: 600;
  font-family: var(--mono);
  letter-spacing: 0.4px;
}

/* ESP32 devkit: 28.2×54mm → ~107×204px → scale 0.98 → 105×200px */
.board-element-esp32 {
  width: 105px;
  height: 200px;
  overflow: hidden;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
  flex-shrink: 0;
}
.board-element-esp32 > wokwi-esp32-devkit-v1 {
  display: block;
  transform: scale(0.98);
  transform-origin: top left;
}

/* Raspberry Pi 3 image */
.board-img-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
}
.board-img-pi3 {
  width: 180px;
  height: auto;
  max-height: 130px;
  object-fit: contain;
}

/* ── Features — Apple tile grid ───────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 20px;
  padding: 36px 30px 32px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s, transform 0.28s, box-shadow 0.28s;
}

.feature-card:hover {
  border-color: rgba(255, 255, 255, 0.13);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 113, 227, 0.12);
  border-radius: 12px;
  margin-bottom: 22px;
  color: var(--accent);
  flex-shrink: 0;
}

.feature-icon svg {
  width: 22px;
  height: 22px;
}

.feature-title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.4px;
}

.feature-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
  font-weight: 400;
}

/* ── Support — Apple-style centered card ──────────────── */
.landing-support {
  background: var(--bg);
  padding: 100px 40px;
}

.support-content {
  max-width: 580px;
  margin: 0 auto;
  text-align: center;
  background: #141416;
  border-radius: 28px;
  padding: 64px 48px;
}

.support-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--accent);
}

.support-icon svg {
  width: 36px;
  height: 36px;
}

.support-title {
  margin: 0 0 12px;
  font-size: clamp(24px, 2.8vw, 38px);
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--text);
}

.support-sub {
  margin: 0 0 36px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-muted);
  font-weight: 400;
}

.support-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.support-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: filter 0.2s, transform 0.2s;
  letter-spacing: -0.2px;
}

.support-btn:hover {
  filter: brightness(1.12);
  transform: scale(1.025);
}

.support-btn-gh {
  background: #2c2c2e;
  color: var(--text);
  border: none;
}

.support-btn-pp {
  background: #0070ba;
  color: #fff;
  border: none;
}

.support-btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ── Footer ───────────────────────────────────────────── */
.landing-footer {
  padding: 40px 80px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  background: var(--bg);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: -0.2px;
}

.footer-brand svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

.footer-links {
  display: flex;
  gap: 28px;
}

.footer-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 13px;
  font-weight: 400;
  transition: color 0.2s;
}

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

.footer-copy {
  font-size: 11.5px;
  color: var(--text-dim);
  margin: 0;
  width: 100%;
  text-align: center;
  font-family: var(--mono);
}

.footer-copy a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-copy a:hover {
  color: var(--text-muted);
}

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 1024px) {
  .landing-hero {
    grid-template-columns: 1fr 1fr;
  }

  .hero-left {
    padding: 72px 40px 72px 48px;
  }

  .landing-section {
    padding: 80px 48px;
  }

  .landing-section-alt .section-header,
  .landing-section-alt .features-grid {
    padding-left: 48px;
    padding-right: 48px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .landing-footer {
    padding: 32px 48px;
  }
}

@media (max-width: 900px) {
  .landing-hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-left {
    padding: 64px 32px;
    order: 1;
  }

  .hero-right {
    order: -1;
    min-height: 55vw;
    max-height: 480px;
  }

  .schematic-svg {
    max-width: 380px;
  }

  .landing-section,
  .landing-support {
    padding: 64px 32px;
  }

  .landing-section-alt .section-header,
  .landing-section-alt .features-grid {
    padding-left: 32px;
    padding-right: 32px;
  }

  .landing-footer {
    padding: 32px 32px;
  }
}

@media (max-width: 600px) {
  .landing-nav {
    padding: 0 20px;
  }

  .landing-nav-links .nav-link:not(:last-child) {
    display: none;
  }

  .hero-left {
    padding: 52px 20px;
  }

  .landing-section,
  .landing-support {
    padding: 52px 20px;
  }

  .landing-section-alt .section-header,
  .landing-section-alt .features-grid {
    padding-left: 20px;
    padding-right: 20px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .landing-footer {
    padding: 28px 20px;
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-ctas {
    flex-direction: column;
  }

  .cta-primary,
  .cta-secondary {
    justify-content: center;
  }
}
