/* SPDX-License-Identifier: Apache-2.0 */
/* Artesian docs — custom styles for landing page, token-savings banner, and polish */

/* ── Variables ──────────────────────────────────────────────── */
:root {
  --art-teal-dark:   #00796b;
  --art-teal:        #009688;
  --art-teal-mid:    #00897b;
  --art-teal-light:  #b2dfdb;
  --art-accent:      #00bfa5;
  --art-accent-muted: rgba(0, 191, 165, 0.12);
  --art-text-inverse: rgba(255, 255, 255, 0.95);
  --art-text-inverse-muted: rgba(255, 255, 255, 0.78);
}

/* ── Hero section ───────────────────────────────────────────── */
.art-hero {
  text-align: center;
  padding: 4rem 1.5rem 3.5rem;
  background: linear-gradient(155deg, var(--art-teal-dark) 0%, var(--art-teal) 60%, var(--art-teal-mid) 100%);
  margin: -0.8rem -0.8rem 3rem;
  border-radius: 0 0 1.25rem 1.25rem;
  position: relative;
  overflow: hidden;
}

/* Subtle texture overlay */
.art-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 40px,
    rgba(255,255,255,0.015) 40px,
    rgba(255,255,255,0.015) 80px
  );
  pointer-events: none;
}

.art-logo {
  height: 3.25rem;
  width: auto;
  margin-bottom: 1.5rem;
  display: block;
  margin-left: auto;
  margin-right: auto;
  /* Invert so the SVG reads as white on the teal background */
  filter: brightness(0) invert(1);
}

.art-tagline {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--art-text-inverse);
  margin: 0 auto 0.5rem;
  max-width: 46rem;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.art-sub {
  font-size: 1.05rem;
  color: var(--art-text-inverse-muted);
  margin: 0 auto 2.25rem;
  max-width: 36rem;
}

.art-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* Override Material button colours inside the hero */
.art-actions .md-button {
  color: var(--art-text-inverse) !important;
  border-color: rgba(255, 255, 255, 0.55) !important;
}

.art-actions .md-button--primary {
  background: rgba(255, 255, 255, 0.2) !important;
  border-color: rgba(255, 255, 255, 0.7) !important;
}

.art-actions .md-button--primary:hover {
  background: rgba(255, 255, 255, 0.32) !important;
}

/* ── Token-savings banner ───────────────────────────────────── */
.art-token-banner {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  background: var(--art-accent-muted);
  border: 2px solid var(--art-accent);
  border-radius: 0.875rem;
  padding: 1.25rem 1.75rem;
  margin: 2.5rem 0;
  flex-wrap: wrap;
}

.art-token-stat {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--md-code-font-family, "JetBrains Mono", monospace);
  white-space: nowrap;
  flex-shrink: 0;
}

.art-token-before {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--md-default-fg-color--light);
  text-decoration: line-through;
  text-decoration-color: #ef5350;
  text-decoration-thickness: 2px;
}

.art-token-arrow {
  font-size: 1.3rem;
  color: var(--art-accent);
  font-weight: 800;
  padding: 0 0.1rem;
}

.art-token-after {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--art-accent);
  letter-spacing: -0.02em;
}

.art-token-unit {
  font-size: 0.85rem;
  color: var(--md-default-fg-color--light);
  align-self: flex-end;
  padding-bottom: 0.2rem;
}

.art-token-desc {
  flex: 1;
  font-size: 0.9rem;
  min-width: 200px;
  color: var(--md-default-fg-color);
  line-height: 1.55;
}

.art-token-desc strong {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 0.95rem;
}

/* ── Install section heading spacing ────────────────────────── */
.md-typeset h2:first-of-type {
  margin-top: 0.5rem;
}

/* ── Grid card tweaks ───────────────────────────────────────── */
/* Give the landing-page feature cards a consistent min-height */
.art-feature-cards.grid.cards > ul > li {
  min-height: 9rem;
}

/* ── Governance / OCF highlight boxes ──────────────────────── */
.art-highlight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin: 2rem 0;
}

@media screen and (max-width: 768px) {
  .art-highlight-grid {
    grid-template-columns: 1fr;
  }
}

.art-highlight-box {
  border: 1.5px solid var(--md-default-fg-color--lightest, #e0e0e0);
  border-radius: 0.75rem;
  padding: 1.25rem 1.5rem;
  background: var(--md-default-bg-color);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.art-highlight-box:hover {
  border-color: var(--art-teal);
  box-shadow: 0 2px 12px rgba(0, 150, 136, 0.12);
}

.art-highlight-box h3 {
  margin-top: 0;
  font-size: 1rem;
  color: var(--art-teal);
}

.art-highlight-box p {
  font-size: 0.88rem;
  color: var(--md-default-fg-color--light);
  margin-bottom: 0.75rem;
}

/* ── Dark mode overrides ────────────────────────────────────── */
[data-md-color-scheme="slate"] {
  --art-accent-muted: rgba(0, 191, 165, 0.1);
}

[data-md-color-scheme="slate"] .art-highlight-box {
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
}

[data-md-color-scheme="slate"] .art-highlight-box:hover {
  border-color: var(--art-teal);
}

/* ── Responsive ─────────────────────────────────────────────── */
@media screen and (max-width: 600px) {
  .art-hero {
    margin: -0.4rem -0.4rem 2rem;
    padding: 3rem 1rem 2.5rem;
  }

  .art-tagline {
    font-size: 1.15rem;
  }

  .art-token-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .art-token-after {
    font-size: 1.75rem;
  }
}