/* Local helpers for the marketing UI kit — token-driven utility classes */

/* Scroll reveal: starts hidden, IntersectionObserver toggles `.in` */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out); will-change: opacity, transform; }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"] { transition-delay: 80ms; }
.reveal[data-delay="2"] { transition-delay: 160ms; }
.reveal[data-delay="3"] { transition-delay: 240ms; }
.reveal[data-delay="4"] { transition-delay: 320ms; }
.reveal[data-delay="5"] { transition-delay: 400ms; }

/* Common section rhythm */
.section { padding: clamp(72px, 10vw, 144px) 0; }
.section-tight { padding: clamp(48px, 6vw, 88px) 0; }
.divider-top { border-top: 1px solid var(--border); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-sans); font-size: 15px; font-weight: 500; padding: 14px 22px; border-radius: 4px; border: 1px solid transparent; cursor: pointer; transition: background 180ms var(--ease-in-out), color 180ms, border-color 180ms, transform 80ms; text-decoration: none; line-height: 1; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); color: var(--bone); }
.btn-primary:hover { background: #000; opacity: 1; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--border-strong); }
.btn-ghost:hover { background: rgb(20 17 14 / 0.06); opacity: 1; }
.btn-on-dark { background: var(--bone); color: var(--ink); }
.btn-on-dark:hover { background: #fff; }

/* Nav CTA — inline link variant (not a filled button) */
.nav-cta { font-family: var(--font-sans); font-size: 14px; font-weight: 500; color: var(--ink); text-decoration: none; display: inline-flex; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--ink); transition: gap 180ms var(--ease-in-out); }
.nav-cta:hover { gap: 12px; opacity: 1; }

/* Mono kicker */
.kicker { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-mute); }
.kicker-accent { color: var(--oxblood); }
.kicker-on-dark { color: var(--bone); opacity: 0.55; }

/* Card */
.s-card { background: var(--bone); border: 1px solid var(--border); border-radius: 12px; padding: 28px; transition: border-color 180ms; display: flex; flex-direction: column; gap: 18px; }
.s-card:hover { border-color: var(--border-strong); }

/* Dark surface */
.dark { background: var(--ink); color: var(--bone); }
.dark .kicker { color: var(--bone); opacity: 0.55; }
.dark a { color: var(--bone); }

/* Hand-drawn mark colors */
img.mark { display: inline-block; vertical-align: middle; }
.mark-oxblood { filter: invert(13%) sepia(76%) saturate(2400%) hue-rotate(343deg) brightness(85%) contrast(94%); }
.mark-ochre { filter: invert(53%) sepia(58%) saturate(630%) hue-rotate(347deg) brightness(91%) contrast(90%); }

/* Off-grid moments */
.tilt-left  { transform: rotate(-1.2deg); }
.tilt-right { transform: rotate(1deg); }

/* Marquee */
@keyframes scrollx { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.marquee { display: flex; gap: 64px; width: max-content; animation: scrollx 38s linear infinite; will-change: transform; }
.marquee:hover { animation-play-state: paused; }