/* =========================================================================
   MindyCore — Components
   ========================================================================= */

/* ---------- Header (H-1, H-2, H-3) -------------------------------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 80px;
  display: flex;
  align-items: center;
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  backdrop-filter: blur(20px) saturate(120%);
  -webkit-backdrop-filter: blur(20px) saturate(120%);
  border-bottom: 1px solid color-mix(in oklab, var(--line) 50%, transparent);
  transition: background var(--t-base) var(--ease-soft),
              border-color var(--t-base) var(--ease-soft);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
}

/* The header's ONE ambient layer — slow gradient sweep, ≥18s cycle */
.header-ambient {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  opacity: 0.55;
}
.header-ambient::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(60% 80% at 15% 50%, color-mix(in oklab, var(--accent-deep) 18%, transparent), transparent 70%),
    radial-gradient(50% 70% at 80% 50%, color-mix(in oklab, var(--signal) 14%, transparent), transparent 65%);
  filter: blur(40px);
  animation: header-drift var(--t-header) ease-in-out infinite alternate;
}
@keyframes header-drift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(4%, -2%, 0) scale(1.08); }
}

/* Logo wordmark */
.logo {
  position: relative;
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
  font-variation-settings: "opsz" 24;
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
}
.logo:hover { text-decoration: none; color: var(--ink); }
.logo .logo-mark {
  font-style: italic;
  color: var(--accent-deep);
}
.logo .logo-r {
  font-family: var(--font-mono);
  font-size: 9px;
  vertical-align: super;
  color: var(--ink-3);
  margin-left: 2px;
  letter-spacing: 0;
}

/* Hamburger */
.hamburger {
  position: relative;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: border-color var(--t-base) var(--ease-soft),
              background var(--t-base) var(--ease-soft);
}
.hamburger:hover { border-color: var(--line-strong); background: color-mix(in oklab, var(--bg-elev) 60%, transparent); }
.hamburger-bars {
  width: 18px;
  height: 10px;
  position: relative;
}
.hamburger-bars::before,
.hamburger-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--ink);
  transition: transform var(--t-base) var(--ease-soft);
}
.hamburger-bars::before { top: 2px; }
.hamburger-bars::after  { bottom: 2px; }
.hamburger[aria-expanded="true"] .hamburger-bars::before {
  transform: translateY(3px) rotate(45deg);
}
.hamburger[aria-expanded="true"] .hamburger-bars::after {
  transform: translateY(-3px) rotate(-45deg);
}

/* ---------- Hamburger menu overlay -------------------------------------- */
.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: color-mix(in oklab, var(--bg) 96%, transparent);
  backdrop-filter: blur(30px) saturate(120%);
  -webkit-backdrop-filter: blur(30px) saturate(120%);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-base) var(--ease-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}
.menu-overlay[data-open="true"] {
  opacity: 1;
  pointer-events: auto;
}
.menu-overlay nav {
  width: 100%;
  max-width: var(--content-w);
  padding: 120px var(--gutter) var(--s-9);
}
.menu-overlay .menu-eyebrow {
  margin-bottom: var(--s-7);
  color: var(--ink-3);
}
.menu-overlay ol {
  display: grid;
  gap: var(--s-2);
  counter-reset: menu;
}
.menu-overlay li {
  counter-increment: menu;
  border-top: 1px solid var(--line);
}
.menu-overlay li:last-child { border-bottom: 1px solid var(--line); }
.menu-overlay a {
  display: flex;
  align-items: baseline;
  gap: var(--s-5);
  padding: var(--s-4) 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.1;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: var(--ls-display);
  transition: padding var(--t-base) var(--ease-soft), color var(--t-base) var(--ease-soft);
}
.menu-overlay a::before {
  content: counter(menu, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: var(--ls-caps);
  color: var(--ink-3);
  flex-shrink: 0;
  align-self: center;
  font-variation-settings: normal;
}
.menu-overlay a:hover {
  color: var(--accent-deep);
  padding-left: var(--s-4);
}

/* ---------- A11y Control Panel (INT-1) — the hero centerpiece --------- */
.a11y-panel-host {
  /* Holds the panel's space so the page doesn't jump when it docks. */
  position: relative;
  min-height: 0;
  transition: min-height var(--t-base) var(--ease-soft);
}

.a11y-panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-4);
  background: color-mix(in oklab, var(--bg-elev) 72%, transparent);
  border: 1px solid var(--line);
  border-radius: 6px;
  position: relative;
  transition: background var(--t-base) var(--ease-soft),
              border-color var(--t-base) var(--ease-soft),
              padding var(--t-base) var(--ease-soft),
              border-radius var(--t-base) var(--ease-soft),
              gap var(--t-base) var(--ease-soft);
}
.a11y-panel::before {
  content: "";
  position: absolute;
  top: -1px; left: 20px;
  width: 20px; height: 2px;
  background: var(--accent-deep);
  opacity: 0.6;
  transition: opacity var(--t-base) var(--ease-soft);
}

.a11y-intro {
  width: 100%;
  margin-bottom: var(--s-2);
  display: flex;
  align-items: baseline;
  gap: var(--s-3);
  transition: opacity var(--t-base) var(--ease-soft),
              max-height var(--t-base) var(--ease-soft),
              margin var(--t-base) var(--ease-soft);
  max-height: 80px;
  overflow: hidden;
}
.a11y-intro .eyebrow { flex-shrink: 0; }
.a11y-intro p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: calc(18px * var(--text-scale));
  color: var(--ink-2);
  line-height: 1.3;
  margin: 0;
  font-variation-settings: "opsz" 24;
}

/* ---- Docked state: fixed under header, compressed ------------------ */
.a11y-panel-host.is-docked .a11y-panel {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  z-index: 95;
  border-radius: 0;
  border-left: 0;
  border-right: 0;
  border-top: 0;
  padding: 10px var(--gutter);
  /* Solid background as base — iOS Safari sometimes drops backdrop-filter */
  background-color: var(--bg);
  background: color-mix(in oklab, var(--bg) 92%, transparent);
  backdrop-filter: blur(24px) saturate(120%);
  -webkit-backdrop-filter: blur(24px) saturate(120%);
  margin-inline: 0;
  gap: var(--s-2);
  justify-content: center;
  width: 100%;
  max-width: none;
  animation: a11y-dock-in 360ms var(--ease-out);
  /* iOS Safari rendering hardening — force GPU layer so position:fixed
     repaints reliably during momentum scroll + address-bar dynamic resize. */
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
  will-change: transform;
}
.a11y-panel-host.is-docked .a11y-panel::before { opacity: 0; }
.a11y-panel-host.is-docked .a11y-intro {
  max-height: 0;
  margin-bottom: 0;
  opacity: 0;
  pointer-events: none;
}
.a11y-panel-host.is-docked .pill {
  min-height: 36px;
  padding: 0 var(--s-3);
  font-size: 12px;
}
.a11y-panel-host.is-docked .pill .pill-state {
  font-size: 10px;
}
@keyframes a11y-dock-in {
  from { transform: translateY(-8px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

/* When docked: a slim caption above the panel for the page user can show/dismiss. Optional close button. */
.a11y-dock-close {
  position: absolute;
  right: var(--s-3);
  top: 50%;
  transform: translateY(-50%);
  width: 28px; height: 28px;
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--ink-3);
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color var(--t-fast) var(--ease-soft), border-color var(--t-fast) var(--ease-soft);
}
.a11y-dock-close:hover { color: var(--ink); border-color: var(--line); }
.a11y-panel-host.is-docked .a11y-dock-close { display: inline-flex; }
.a11y-dock-close svg { width: 12px; height: 12px; }

/* When the user dismisses the dock, hide the dock — but it returns when they scroll back to hero */
.a11y-panel-host.is-dock-dismissed.is-docked .a11y-panel {
  display: none;
}

/* Bump scroll offset when panel is docked so anchor jumps land below it */
html:has(.a11y-panel-host.is-docked:not(.is-dock-dismissed)) {
  scroll-padding-top: 156px;
}

/* Pill toggle */
.pill {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  min-height: 40px;
  padding: 0 var(--s-3);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease-soft),
              background var(--t-fast) var(--ease-soft),
              color var(--t-fast) var(--ease-soft),
              min-height var(--t-base) var(--ease-soft),
              padding var(--t-base) var(--ease-soft),
              font-size var(--t-base) var(--ease-soft);
}
.pill:hover {
  border-color: var(--line-strong);
  color: var(--ink);
}
.pill[data-active="true"] {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.pill[data-active="true"] .pill-dot {
  background: var(--bg);
  box-shadow: 0 0 0 2px var(--ink);
}

.pill-dot {
  width: 8px; height: 8px;
  border-radius: 999px;
  background: transparent;
  border: 1px solid currentColor;
  flex-shrink: 0;
  transition: background var(--t-fast) var(--ease-soft),
              box-shadow var(--t-fast) var(--ease-soft);
}

.pill-state {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  border-left: 1px solid currentColor;
  padding-left: var(--s-2);
  margin-left: 2px;
  opacity: 0.8;
}
.pill[data-active="true"] .pill-state { color: var(--bg); opacity: 0.7; }

/* Language pill — segmented EN | ES (both visible) */
.pill-lang {
  padding: 3px;
  gap: 2px;
  background: color-mix(in oklab, var(--accent-deep) 12%, transparent);
  border-color: color-mix(in oklab, var(--accent-deep) 60%, var(--line));
  min-height: 40px;
}
.pill-lang::before {
  content: "";
  position: absolute;
  inset: auto auto -10px var(--s-3);
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--accent-deep);
  display: none;
}
.pill-lang .lang-seg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  padding: 0 10px;
  height: 32px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  transition: background var(--t-fast) var(--ease-soft),
              color var(--t-fast) var(--ease-soft);
}
.pill-lang .lang-seg.active {
  background: var(--accent-deep);
  color: var(--bg);
}
.pill-lang:hover .lang-seg:not(.active) { color: var(--ink); }

/* In docked mode, scale lang pill down too */
.a11y-panel-host.is-docked .pill-lang { min-height: 36px; padding: 2px; }
.a11y-panel-host.is-docked .pill-lang .lang-seg { height: 28px; min-width: 32px; font-size: 12px; }

/* Mobile dock: allow horizontal scroll instead of wrap */
@media (max-width: 760px) {
  .a11y-panel-host.is-docked .a11y-panel {
    overflow-x: auto;
    flex-wrap: nowrap;
    justify-content: flex-start;
    padding-right: 56px; /* space for close button */
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .a11y-panel-host.is-docked .a11y-panel::-webkit-scrollbar { display: none; }
  .a11y-panel-host.is-docked .pill { flex-shrink: 0; }
}

/* ---------- CTA Button (CTA-1) ----------------------------------------- */
.cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--s-4);
  padding: var(--s-5) var(--s-7);
  background: var(--ink);
  color: var(--bg);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: calc(22px * var(--text-scale));
  letter-spacing: -0.01em;
  border-radius: 999px;
  font-variation-settings: "opsz" 24;
  isolation: isolate;
  transition: transform var(--t-base) var(--ease-soft),
              background var(--t-base) var(--ease-soft);
}
.cta::after {
  /* Slow ambient breath — 4.5s cycle, fully reduce-motion-toggleable */
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 999px;
  border: 1px solid var(--accent-deep);
  opacity: 0;
  z-index: -1;
  animation: cta-breath 4.5s ease-in-out infinite;
}
@keyframes cta-breath {
  0%, 100% { transform: scale(1);    opacity: 0; }
  50%      { transform: scale(1.04); opacity: 0.7; }
}
.cta:hover {
  transform: translateY(-1px);
  background: var(--ink);
  color: var(--bg);
  text-decoration: none;
}
.cta:hover::after { opacity: 0.9 !important; }

.cta-arrow {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 400;
  transform: translateY(-1px);
}
.cta-external-icon {
  width: 14px; height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

/* ---------- Secondary button ------------------------------------------- */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-4) var(--s-6);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  transition: border-color var(--t-fast) var(--ease-soft),
              background var(--t-fast) var(--ease-soft);
}
.btn-secondary:hover {
  border-color: var(--ink);
  background: color-mix(in oklab, var(--ink) 8%, transparent);
  color: var(--ink);
  text-decoration: none;
}

/* ---------- Pointer (PTR) — NOT a button ------------------------------- */
.pointer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-4);
  padding: var(--s-8) 0;
  text-align: center;
}
.pointer-label {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--ink-3);
}
.pointer-line {
  width: 1px;
  height: 88px;
  background: linear-gradient(to bottom,
    color-mix(in oklab, var(--line-strong) 0%, transparent),
    var(--line-strong) 30%,
    var(--accent-deep) 100%);
  position: relative;
  overflow: hidden;
}
.pointer-line::after {
  content: "";
  position: absolute;
  top: -40%;
  left: 0;
  width: 100%;
  height: 40%;
  background: linear-gradient(to bottom, transparent, var(--accent-deep));
  animation: pointer-trace 6s var(--ease-soft) infinite;
}
@keyframes pointer-trace {
  0%   { top: -40%; opacity: 0; }
  20%  { opacity: 1; }
  100% { top: 140%; opacity: 0; }
}
.pointer-target {
  font-family: var(--font-display);
  font-style: italic;
  font-size: calc(22px * var(--text-scale));
  color: var(--ink-2);
  font-variation-settings: "opsz" 24;
}

/* ---------- Fixed right-edge nav rail ---------------------------------- */
.scroll-rail {
  position: fixed;
  top: 50%;
  right: clamp(16px, 2.5vw, 32px);
  transform: translateY(-50%);
  z-index: 80;
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding: var(--s-4) 0;
}
.scroll-rail li { display: block; }
.scroll-rail a {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  text-decoration: none;
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  padding: var(--s-1) 0;
  transition: color var(--t-base) var(--ease-soft);
}
.scroll-rail a:hover { color: var(--ink); }
.scroll-rail .rail-dot {
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--ink-4);
  transition: width var(--t-base) var(--ease-soft),
              background var(--t-base) var(--ease-soft);
  flex-shrink: 0;
}
.scroll-rail .rail-label {
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--t-base) var(--ease-soft),
              transform var(--t-base) var(--ease-soft);
  white-space: nowrap;
  pointer-events: none;
}
.scroll-rail a:hover .rail-label,
.scroll-rail a[aria-current="true"] .rail-label {
  opacity: 1;
  transform: translateX(0);
}
.scroll-rail a[aria-current="true"] {
  color: var(--ink);
}
.scroll-rail a[aria-current="true"] .rail-dot {
  width: 40px;
  background: var(--accent-deep);
}

/* ---------- Reading progress (top bar) --------------------------------- */
.read-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--accent-deep);
  z-index: 110;
  width: 0%;
  transition: width 100ms linear;
  opacity: 0.85;
}

/* ---------- Search modal ----------------------------------------------- */
.search-trigger {
  width: 44px; height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-2);
  transition: border-color var(--t-fast) var(--ease-soft),
              background var(--t-fast) var(--ease-soft);
}
.search-trigger:hover { border-color: var(--line-strong); color: var(--ink); }
.search-trigger svg { width: 16px; height: 16px; }

.search-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: color-mix(in oklab, var(--bg) 94%, transparent);
  backdrop-filter: blur(24px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 18vh;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-base) var(--ease-soft);
}
.search-modal[data-open="true"] { opacity: 1; pointer-events: auto; }
.search-box {
  width: 100%;
  max-width: 720px;
  padding: 0 var(--gutter);
}
.search-box input {
  width: 100%;
  padding: var(--s-5) 0;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  outline: none;
  letter-spacing: var(--ls-display);
}
.search-results {
  margin-top: var(--s-5);
  max-height: 50vh;
  overflow-y: auto;
}
.search-results li { border-top: 1px solid var(--line); }
.search-results a {
  display: block;
  padding: var(--s-4) 0;
  text-decoration: none;
  color: var(--ink-2);
  transition: color var(--t-fast) var(--ease-soft);
}
.search-results a:hover { color: var(--ink); }
.search-results .res-eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: var(--s-1);
}
.search-results .res-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-variation-settings: "opsz" 24;
}
.search-empty {
  padding: var(--s-5) 0;
  color: var(--ink-3);
  font-style: italic;
}

/* ---------- Grain overlay (hero ambient HERO-1) ------------------------ */
.grain-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  mix-blend-mode: var(--grain-blend);
  opacity: var(--grain-opacity);
  background-image: var(--grain-url);
  background-size: 220px;
  animation: grain-breath var(--t-tide) ease-in-out infinite;
}
@keyframes grain-breath {
  0%, 100% { opacity: var(--grain-opacity); transform: scale(1.0); }
  50%      { opacity: calc(var(--grain-opacity) * 1.6); transform: scale(1.04); }
}

/* ---------- Accordion / section toggle (compact view) ------------------ */
.section-toggle {
  position: absolute;
  top: var(--s-5);
  right: 0;
  width: 44px; height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-3);
  border: 1px solid transparent;
  border-radius: 999px;
  transition: color var(--t-fast) var(--ease-soft),
              border-color var(--t-fast) var(--ease-soft);
}
.section-toggle:hover {
  color: var(--ink);
  border-color: var(--line);
}
.section-toggle svg {
  width: 14px; height: 14px;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
  transition: transform var(--t-base) var(--ease-soft);
}
[data-collapsed="true"] .section-toggle svg {
  transform: rotate(-90deg);
}

.section-body {
  display: grid;
  grid-template-rows: 1fr;
  transition: grid-template-rows var(--t-slow) var(--ease-soft),
              opacity var(--t-base) var(--ease-soft),
              margin-top var(--t-slow) var(--ease-soft);
  overflow: hidden;
  opacity: 1;
}
.section-body > * { min-height: 0; }
[data-collapsed="true"] .section-body {
  grid-template-rows: 0fr;
  opacity: 0;
  margin-top: 0 !important;
}

.section-summary {
  display: none;
  font-style: italic;
  color: var(--ink-3);
  margin-top: var(--s-4);
  font-size: var(--fs-lead);
  font-family: var(--font-display);
  font-variation-settings: "opsz" 24;
}
[data-collapsed="true"] .section-summary {
  display: block;
}