/* landing-motion.css — interaction + motion layer for marketing pages.
   Loaded ONLY on landing/pricing/blog/guides — never auth or app shell.
   Pairs with /js/landing-motion.js (window.LandingMotion).

   Design constraint: GPU-only (transform / opacity / filter), 60fps,
   zero layout thrash. Honors prefers-reduced-motion (master kill at bottom).
*/

/* ── Reveal — scroll-in stagger ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--motion-slow) var(--motion-ease),
              transform var(--motion-slow) var(--motion-ease);
  will-change: opacity, transform;
}
.reveal.is-revealed { opacity: 1; transform: translateY(0); }

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--motion-base) var(--motion-ease),
              transform var(--motion-base) var(--motion-ease);
}
.reveal-stagger.is-revealed > *           { opacity: 1; transform: translateY(0); }
.reveal-stagger.is-revealed > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.is-revealed > *:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger.is-revealed > *:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger.is-revealed > *:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger.is-revealed > *:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger.is-revealed > *:nth-child(6) { transition-delay: 400ms; }

/* Above-the-fold opt-out. Same reasoning as [data-reveal-now] in landing.css:
   `is-revealed` is added by /js/landing-motion.js, which is `defer`, so an
   above-the-fold stagger block stays invisible through first paint. */
.reveal[data-reveal-now],
.reveal-stagger[data-reveal-now] > * {
  opacity: 1; transform: none; transition: none;
}

/* ── Hover lift — generic card affordance ─────────────────────────────── */
.lift-on-hover {
  transition: transform var(--motion-fast) var(--motion-ease),
              box-shadow var(--motion-fast) var(--motion-ease);
  will-change: transform;
}
@media (hover: hover) and (pointer: fine) {
  .lift-on-hover:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
}

/* Card icon micro-rotate companion (apply to .lift-on-hover > .icon) */
.lift-on-hover .icon {
  transition: transform var(--motion-base) var(--motion-ease-spring);
  transform-origin: 50% 50%;
  display: inline-flex;
}
@media (hover: hover) and (pointer: fine) {
  .lift-on-hover:hover .icon { transform: rotate(-4deg) scale(1.05); }
}

/* ── Magnetic — JS sets --mx, --my within ±8px range ──────────────────── */
[data-magnetic] {
  transition: transform var(--motion-fast) var(--motion-ease),
              box-shadow var(--motion-fast) var(--motion-ease);
  will-change: transform;
}
[data-magnetic][data-magnetic-active="true"] {
  transform: translate3d(var(--mx, 0px), var(--my, 0px), 0) scale(1.02);
  box-shadow: 0 0 24px rgba(37, 110, 91, 0.18);
}
[data-magnetic]:active { transform: scale(0.97); transition-duration: 60ms; }

/* ── Link underline draw ──────────────────────────────────────────────── */
.link-draw {
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-size: 0% 1.5px;
  background-position: 0 100%;
  transition: background-size var(--motion-base) var(--motion-ease);
  padding-bottom: 2px;
}
.link-draw:hover, .link-draw:focus-visible { background-size: 100% 1.5px; }
/* Active page — persistent teal underline, no animation required. */
.link-draw[aria-current="page"] {
  background-image: linear-gradient(var(--accent, #256E5B), var(--accent, #256E5B));
  background-size: 100% 2px;
  color: var(--accent, #256E5B);
}

/* ── Marquee — proof strip continuous scroll ──────────────────────────── */
.marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 8%, black 92%, transparent 100%);
          mask-image: linear-gradient(90deg, transparent 0%, black 8%, black 92%, transparent 100%);
}
.marquee-track {
  display: inline-flex;
  gap: 10px;
  animation: marquee 60s linear infinite;
  will-change: transform;
}
.marquee:hover .marquee-track,
.marquee:focus-within .marquee-track { animation-play-state: paused; }
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── Cursor glow — hero radial gradient follows cursor ────────────────── */
.cursor-glow {
  position: relative;
  isolation: isolate;
}
.cursor-glow::after {
  content: '';
  position: absolute;
  inset: -20%;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(
    420px circle at var(--cursor-x, 50%) var(--cursor-y, 50%),
    rgba(37, 110, 91, 0.08),
    transparent 70%
  );
  transition: opacity var(--motion-base) var(--motion-ease);
  opacity: 0;
}
.cursor-glow[data-cursor-active="true"]::after { opacity: 1; }
.cursor-glow > * { position: relative; z-index: 1; }

/* ── Pulse dot — section labels breathing ─────────────────────────────── */
.pulse-dot {
  display: inline-block;
  width: 6px; height: 6px; border-radius: 999px;
  background: var(--accent);
  margin-right: 8px;
  animation: pulse-dot 3s ease-in-out infinite;
  vertical-align: middle;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 0.45; transform: scale(1); }
  50%      { opacity: 1;    transform: scale(1.18); }
}

/* ── Accordion — grid-template-rows 0fr→1fr expansion ─────────────────── */
.accordion-row {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--motion-base) var(--motion-ease);
}
.accordion-row > .accordion-content { overflow: hidden; }
.accordion-row[aria-expanded="true"] { grid-template-rows: 1fr; }

/* ── Section indicator (nav active-section underline) ─────────────────── */
/* Containing block for the indicator — nav-links must be the offset parent. */
.nav-links { position: relative; }
.nav-indicator {
  position: absolute;
  bottom: 0; left: 0;
  height: 2px; width: 0;
  background: var(--accent);
  transition: transform var(--motion-base) var(--motion-ease),
              width var(--motion-base) var(--motion-ease),
              opacity var(--motion-fast) var(--motion-ease);
  opacity: 0;
  pointer-events: none;
}
.nav-indicator[data-active="true"] { opacity: 1; }

/* ── Nav compact state on scroll ──────────────────────────────────────── */
.landing-nav.is-scrolled .nav-inner { height: 56px; }
.landing-nav.is-scrolled { backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); }

/* ── Ripple — click feedback overlay (JS appends .ripple-circle) ──────── */
[data-ripple] {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.ripple-circle {
  position: absolute;
  border-radius: 999px;
  background: currentColor;
  opacity: 0.18;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0);
  animation: ripple 480ms var(--motion-ease) forwards;
  z-index: 1;
}
@keyframes ripple {
  to { transform: translate(-50%, -50%) scale(28); opacity: 0; }
}

/* ── Toast notifications ──────────────────────────────────────────────── */
[data-toast-root] {
  position: fixed;
  right: clamp(16px, 3vw, 32px);
  bottom: clamp(16px, 3vh, 24px);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
  max-width: 380px;
}
.toast {
  pointer-events: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  transform: translateY(16px);
  opacity: 0;
  animation: toast-in var(--motion-base) var(--motion-ease) forwards;
}
.toast.is-leaving {
  animation: toast-out var(--motion-fast) var(--motion-ease-in) forwards;
}
.toast--success { border-left-color: var(--success); }
.toast--error   { border-left-color: var(--danger); }
.toast-icon { flex-shrink: 0; width: 18px; height: 18px; color: var(--accent); }
.toast--success .toast-icon { color: var(--success); }
.toast--error   .toast-icon { color: var(--danger); }
.toast-msg { line-height: 1.4; }
@keyframes toast-in {
  to { transform: translateY(0); opacity: 1; }
}
@keyframes toast-out {
  to { transform: translateY(8px); opacity: 0; }
}

/* ── Master kill switch for prefers-reduced-motion ────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-stagger > * { opacity: 1; transform: none; transition: none; }
  .lift-on-hover, .lift-on-hover:hover, .lift-on-hover .icon { transform: none; transition: none; }
  [data-magnetic], [data-magnetic][data-magnetic-active="true"] { transform: none; transition: none; }
  .link-draw { background-size: 0% 1.5px; transition: none; }
  .marquee-track { animation: none; }
  .cursor-glow::after { opacity: 0; transition: none; }
  .pulse-dot { animation: none; }
  .accordion-row { transition: none; }
  .nav-indicator { transition: none; }
  .ripple-circle { animation: none; opacity: 0; }
  .toast { animation: none; transform: none; opacity: 1; }
}