@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&display=swap");

:root {
  --color-background-primary: #ffffff;
  --color-background-secondary: #f8f9fb;
  --color-background-hover: rgba(100, 100, 100, 0.08);
  --color-background-border: #e3e5e8;
  --color-foreground-primary: #14181f;
  --color-foreground-secondary: #4b5563;
  --color-foreground-muted: #8a919e;
  --color-brand-primary: #5f7393;
}

html[data-theme="dark"] {
  --color-background-primary: #131519;
  --color-background-secondary: #1b1e24;
  --color-background-hover: rgba(255, 255, 255, 0.08);
  --color-background-border: #2c2f36;
  --color-foreground-primary: #f2f3f5;
  --color-foreground-secondary: #b7bcc4;
  --color-foreground-muted: #7d848f;
  --color-brand-primary: #7f96b8;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--color-background-primary);
  color: var(--color-foreground-primary);
  font-family: Montserrat, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  transition: background 0.15s, color 0.15s;
}

a {
  color: inherit;
}

/* ── Top navigation bar ─────────────────────────────────────────────────── */
.wl-topnav {
  width: 100%;
  border-bottom: 1px solid var(--color-background-border);
  background: var(--color-background-primary);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 300;
}

.wl-topnav-inner {
  display: flex;
  align-items: center;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.2rem;
  height: 3rem;
  gap: 0.6rem;
}

.wl-topnav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  color: var(--color-foreground-primary);
  white-space: nowrap;
}

.wl-topnav-brand img {
  height: 1.35rem;
  width: auto;
  display: block;
}

.wl-brand-w { color: #d63333; }
.wl-brand-l { color: #2d9e3f; }

.wl-topnav-menu {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: flex-end;
  gap: 0.35rem;
  flex-wrap: nowrap;
}

.wl-topnav-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
  padding: 0.32rem 0.82rem;
  border-radius: 0.45rem;
  border: 1.5px solid transparent;
  font-size: 0.865rem;
  font-weight: 600;
  font-family: "Montserrat", sans-serif;
  color: var(--color-foreground-secondary);
  background: transparent;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.13s, color 0.13s, border-color 0.13s;
  line-height: 1;
}

.wl-topnav-btn:hover {
  background: var(--color-background-hover);
  color: var(--color-foreground-primary);
}

.wl-topnav-btn--outline {
  border-color: var(--color-background-border);
}

.wl-topnav-btn--outline:hover {
  border-color: var(--color-foreground-muted);
}

.wl-topnav-btn--icon {
  padding: 0.32rem 0.45rem;
  color: var(--color-foreground-primary);
}

.wl-topnav-ext-icon {
  width: 0.7rem;
  height: 0.7rem;
  opacity: 0.6;
  flex-shrink: 0;
}

.wl-topnav-stars {
  font-size: 0.78rem;
  font-weight: 600;
  opacity: 0.85;
  white-space: nowrap;
}

.wl-topnav-theme .wl-ti-light,
.wl-topnav-theme .wl-ti-dark {
  display: none;
  line-height: 0;
}

.wl-topnav-theme svg {
  width: 1.05rem;
  height: 1.05rem;
  display: block;
  color: var(--color-foreground-primary);
}

html[data-theme="light"] .wl-topnav-theme .wl-ti-light { display: inline-flex; }
html[data-theme="dark"]  .wl-topnav-theme .wl-ti-dark  { display: inline-flex; }

@media (max-width: 900px) {
  .wl-topnav-btn span.wl-btn-label { display: none; }
  .wl-topnav-btn { padding: 0.32rem 0.55rem; }
}

/* ── Page shell ──────────────────────────────────────────────────────────── */
.wl-page {
  padding-top: 3rem;
}

.wl-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.2rem;
}

/* ── Hero ────────────────────────────────────────────────────────────────── */
.wl-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.9rem;
  text-align: center;
  padding: 3.6rem 1.2rem 2.6rem;
}

.wl-hero-logo {
  max-width: min(560px, 88%);
  width: 100%;
  height: auto;
}

.wl-only-dark { display: none; }
html[data-theme="dark"] .wl-only-light { display: none; }
html[data-theme="dark"] .wl-only-dark { display: block; }

.wl-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--color-background-border);
  background: var(--color-background-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-foreground-secondary);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.wl-hero-eyebrow .wl-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: #2d9e3f;
  box-shadow: 0 0 0 3px rgba(45, 158, 63, 0.18);
  flex-shrink: 0;
}

.wl-hero-subtitle {
  font-size: 1.08rem;
  color: var(--color-foreground-secondary);
  margin: 0;
  max-width: 640px;
  line-height: 1.6;
}

.wl-hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 0.4rem;
}

.wl-hero-cta,
.wl-hero-cta:link,
.wl-hero-cta:visited {
  display: inline-block;
  padding: 0.6rem 1.15rem;
  border-radius: 0.5rem;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  background: #5f7393;
  border-color: #5f7393;
  color: #ffffff;
  transition: background 0.15s, border-color 0.15s;
}

.wl-hero-cta:hover {
  background: #6f83a2;
  border-color: #6f83a2;
}

.wl-hero-cta-secondary {
  background: transparent;
  color: var(--color-foreground-primary);
  border-color: var(--color-background-border);
}

.wl-hero-cta-secondary:hover {
  background: var(--color-background-hover);
  border-color: var(--color-foreground-muted);
}

/* ── Section heading ─────────────────────────────────────────────────────── */
.wl-section {
  padding: 1rem 0 3.6rem;
}

.wl-section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.wl-section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
}

.wl-section-desc {
  font-size: 0.92rem;
  color: var(--color-foreground-secondary);
  margin: 0.3rem 0 0;
}

/* ── Sandbox cards ───────────────────────────────────────────────────────── */
.wl-eg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.2rem;
}

.wl-eg-cardwrap {
  position: relative;
  display: flex;
}

.wl-eg-cardwrap > .wl-eg-card {
  flex: 1;
}

.wl-eg-card {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 1.3rem 1.35rem 1.2rem;
  border: 1.5px solid var(--color-background-border);
  border-radius: 0.75rem;
  background: var(--color-background-secondary);
  color: var(--color-foreground-primary);
  text-decoration: none;
  transition: box-shadow 0.15s, border-color 0.15s, transform 0.12s;
  position: relative;
}

.wl-eg-card:hover {
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.12);
  border-color: var(--color-brand-primary);
  transform: translateY(-3px);
}

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

.wl-eg-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #fff;
  width: fit-content;
}

.wl-eg-badge--pytorch { background: #de4e20; }
.wl-eg-badge--usecase  { background: #c07a12; }

.wl-eg-live {
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #2d9e3f;
}

.wl-eg-live .wl-dot {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: #2d9e3f;
  box-shadow: 0 0 0 3px rgba(45, 158, 63, 0.18);
}

.wl-eg-title {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 700;
  font-family: "Montserrat", sans-serif;
  line-height: 1.3;
}

.wl-eg-desc {
  margin: 0;
  font-size: 0.87rem;
  color: var(--color-foreground-secondary);
  line-height: 1.6;
  flex: 1;
}

.wl-eg-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.15rem;
}

.wl-eg-tag {
  display: inline-block;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 500;
  background: var(--color-background-hover);
  color: var(--color-foreground-secondary);
  border: 1px solid var(--color-background-border);
}

/* ── Card footer: Sandbox (left) / Collab (right) ─────────────────────────── */
.wl-eg-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  margin-top: 0.3rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--color-background-border);
}

.wl-eg-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.8rem;
  border-radius: 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: 1.5px solid var(--color-background-border);
  background: transparent;
  color: var(--color-foreground-primary);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.wl-eg-btn svg {
  width: 0.8rem;
  height: 0.8rem;
  transition: transform 0.15s;
}

.wl-eg-colab-icon {
  width: 0.95rem;
  height: 0.95rem;
  object-fit: contain;
  display: block;
}

.wl-eg-btn--sandbox {
  border-color: var(--color-brand-primary);
  color: var(--color-brand-primary);
}

.wl-eg-btn--sandbox:hover {
  background: var(--color-brand-primary);
  color: #fff;
}

.wl-eg-btn--sandbox:hover svg {
  transform: translateX(2px);
}

.wl-eg-btn--collab {
  color: var(--color-foreground-secondary);
}

.wl-eg-btn--collab:hover {
  border-color: var(--color-foreground-secondary);
  color: var(--color-foreground-primary);
}

/* ── Footer ──────────────────────────────────────────────────────────────── */
.wl-footer {
  border-top: 1px solid var(--color-background-border);
  padding: 1.8rem 0 2.4rem;
}

.wl-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.8rem;
  font-size: 0.83rem;
  color: var(--color-foreground-muted);
}

.wl-footer-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.wl-footer-links a {
  color: var(--color-foreground-secondary);
  text-decoration: none;
  font-weight: 500;
}

.wl-footer-links a:hover {
  color: var(--color-foreground-primary);
  text-decoration: underline;
}

/* ── Sandbox login modal (per-card, opened on demand from the Sandbox button) */
.sbx-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.2rem;
  overflow: auto;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(3px);
}

.sbx-modal-card {
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 2rem 1.8rem 1.8rem;
  border: 1.5px solid var(--color-background-border);
  border-radius: 0.9rem;
  background: var(--color-background-secondary);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.3);
  text-align: center;
  position: relative;
}

.sbx-modal-close {
  position: absolute;
  top: 0.7rem;
  right: 0.8rem;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  color: var(--color-foreground-muted);
  padding: 0.2rem 0.4rem;
  border-radius: 0.4rem;
}

.sbx-modal-close:hover { background: var(--color-background-hover); color: var(--color-foreground-primary); }

.sbx-gate-logo-link { display: inline-block; max-width: 220px; width: 70%; margin: 0 auto 0.2rem; }

.sbx-gate-logo { width: 100%; height: auto; margin: 0; display: block; }

.sbx-gate-title { margin: 0; font-size: 1.35rem; font-weight: 700; }

.sbx-gate-sub {
  margin: 0 0 0.4rem;
  font-size: 0.9rem;
  color: var(--color-foreground-secondary);
  line-height: 1.5;
}

.sbx-request-trigger {
  margin: 0.1rem auto 0;
  padding: 0.3rem 0.2rem;
  border: 0;
  background: transparent;
  color: var(--color-brand-primary);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: underline;
  cursor: pointer;
}

.sbx-request-trigger:hover { color: #6f83a2; }

.sbx-pane {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  text-align: left;
  margin-top: 0.3rem;
}

.sbx-label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-foreground-secondary);
}

.sbx-input {
  padding: 0.6rem 0.7rem;
  border: 1.5px solid var(--color-background-border);
  border-radius: 0.5rem;
  background: var(--color-background-primary);
  color: var(--color-foreground-primary);
  font-family: inherit;
  font-size: 0.92rem;
}

.sbx-textarea {
  resize: vertical;
  min-height: 4.5rem;
}

.sbx-input:focus {
  outline: none;
  border-color: var(--color-brand-primary);
}

.sbx-btn {
  margin-top: 0.2rem;
  padding: 0.62rem 1rem;
  border: 1px solid var(--color-brand-primary);
  border-radius: 0.5rem;
  background: var(--color-brand-primary);
  color: #fff;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.sbx-btn:hover { background: #6f83a2; }
.sbx-btn:disabled { opacity: 0.6; cursor: default; }

.sbx-msg { margin: 0.1rem 0 0; font-size: 0.82rem; min-height: 1em; color: var(--color-foreground-secondary); }
.sbx-msg--err { color: #d63333; }
.sbx-msg--ok  { color: #2d9e3f; }

.sbx-hint { margin: -0.3rem 0 0; font-size: 0.72rem; color: var(--color-foreground-muted); }