/* Suheil AI interactive guides — shared theme.
   Light canvas + orange brand accents, per skill single-html-d3-video-animations.
   Additive changes only: existing class contracts must not break older guides. */

:root {
  --sg-bg: #faf9f7;
  --sg-surface: #ffffff;
  --sg-ink: #1c1b1a;
  --sg-muted: #6b6f76;
  --sg-accent: #fd5108;
  --sg-accent-soft: #ffe8db;
  --sg-accent-deep: #c52b09;
  --sg-proof: #356fec;
  --sg-ok: #059669;
  --sg-warn: #e9b01f;
  --sg-border: #e8e5e0;
  --sg-radius: 1.1rem;
  --sg-shadow: 0 10px 30px rgba(28, 27, 26, 0.08);
  --sg-font: 'Rubik', 'IBM Plex Sans Arabic', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --sg-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.sg-guide {
  margin: 0;
  background: var(--sg-bg);
  color: var(--sg-ink);
  font-family: var(--sg-font);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

.sg-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 6rem;
}

/* Hero */
.sg-hero { text-align: center; padding: 2rem 0 1rem; }
.sg-hero h1 {
  font-size: clamp(1.7rem, 5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin: 0 0 0.6rem;
}
.sg-hero .sg-kicker {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--sg-accent-deep);
  background: var(--sg-accent-soft);
  border-radius: 999px;
  padding: 0.3rem 1rem;
  margin-bottom: 1rem;
}
.sg-hero .sg-sub { color: var(--sg-muted); font-size: 1.05rem; margin: 0; }

/* Cards */
.sg-card {
  background: var(--sg-surface);
  border: 1px solid var(--sg-border);
  border-radius: var(--sg-radius);
  box-shadow: var(--sg-shadow);
  padding: 1.4rem 1.5rem;
  margin: 1.4rem 0;
}

/* Reveal-on-scroll baseline (guide.js adds .sg-in) */
.sg-reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.sg-reveal.sg-in { opacity: 1; transform: none; }

/* Buttons */
.sg-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--sg-accent);
  color: #fff;
  border: none;
  border-radius: 999px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.6rem 1.4rem;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease;
}
.sg-btn:hover { background: var(--sg-accent-deep); transform: translateY(-1px); }
.sg-btn.sg-btn-ghost {
  background: transparent;
  color: var(--sg-accent-deep);
  border: 1px solid var(--sg-accent);
}

/* Code / prompt blocks are always LTR */
.sg-code {
  direction: ltr;
  text-align: left;
  font-family: var(--sg-mono);
  font-size: 0.8rem;
  line-height: 1.7;
  background: #16181d;
  color: #e8eaf0;
  border-radius: 0.8rem;
  padding: 1.1rem 1.2rem;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Footer CTA */
.sg-footer { text-align: center; margin-top: 3rem; color: var(--sg-muted); font-size: 0.95rem; }
.sg-footer a { color: var(--sg-accent-deep); }


/* Premium/wide guide mode for interactive story engines. */
body.sg-guide-premium {
  background:
    radial-gradient(circle at 12% 8%, rgba(253, 81, 8, 0.14), transparent 28%),
    radial-gradient(circle at 88% 12%, rgba(53, 111, 236, 0.11), transparent 30%),
    linear-gradient(135deg, #fffaf4, #f6f3ee 54%, #f8fafc);
}

body.sg-guide-premium:before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(17, 24, 39, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 24, 39, 0.045) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at center, black 0%, transparent 78%);
}

.sg-wrap.sg-wrap-wide { max-width: 1120px; }
.sg-section { margin: 2.2rem 0; }
.sg-section h2 { font-size: clamp(1.35rem, 3vw, 2.1rem); letter-spacing: -0.035em; margin: 0 0 1rem; }
.sg-muted { color: var(--sg-muted); }
.sg-hero.sg-hero-premium { padding: 3rem 0 1.5rem; }
.sg-hero.sg-hero-premium h1 { font-size: clamp(2.15rem, 7vw, 4.75rem); line-height: 0.95; letter-spacing: -0.07em; max-width: 900px; margin-inline: auto; }
.sg-hero.sg-hero-premium .sg-sub { max-width: 760px; margin: 0 auto; font-size: clamp(1rem, 2vw, 1.25rem); }
.sg-hero-actions { display: flex; justify-content: center; gap: .75rem; flex-wrap: wrap; margin-top: 1.2rem; }
.sg-btn.sg-btn-soft { background: #111827; }
.sg-btn.sg-btn-soft:hover { background: #243042; }

@media (max-width: 760px) {
  .sg-wrap.sg-wrap-wide { padding-inline: .9rem; }
  .sg-hero.sg-hero-premium { padding-top: 2rem; }
}