/* ═══════════════════════════════════════════════════════════════════════════════
   Secretnote Group — Core Design System
   style.css
   ═══════════════════════════════════════════════════════════════════════════════ */

/* ─── Design Tokens ──────────────────────────────────────────────────────────── */
:root {
  /* Colors (Apple Theme UI) */
  --color-black:        #1d1d1f;
  --color-near-black:   #000000;
  --color-white:        #ffffff;
  --color-off-white:    #f5f5f7;
  --color-gray:         #86868b;
  --color-gray-light:   #d2d2d7;
  --color-border:       #d2d2d7;
  --color-border-dark:  #424245;
  --color-accent:       #0071e3;
  --color-surface:      #f5f5f7;
  --color-surface-2:    #ffffff;

  /* Typography */
  --font-primary:       -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "Roboto", "Helvetica Neue", Arial, sans-serif;
  --font-mono:          "SF Mono", "Fira Mono", "Courier New", monospace;

  /* Scale */
  --text-xs:    0.75rem;     /* 12px */
  --text-sm:    0.875rem;    /* 14px */
  --text-base:  1rem;        /* 16px */
  --text-md:    1.125rem;    /* 18px */
  --text-lg:    1.25rem;     /* 20px */
  --text-xl:    1.5rem;      /* 24px */
  --text-2xl:   2rem;        /* 32px */
  --text-3xl:   2.5rem;      /* 40px */
  --text-4xl:   3rem;        /* 48px */
  --text-5xl:   4rem;        /* 64px */
  --text-6xl:   5rem;        /* 80px */
  --text-hero:  6.875rem;    /* 110px */

  /* Spacing */
  --space-1:    0.25rem;
  --space-2:    0.5rem;
  --space-3:    0.75rem;
  --space-4:    1rem;
  --space-5:    1.25rem;
  --space-6:    1.5rem;
  --space-8:    2rem;
  --space-10:   2.5rem;
  --space-12:   3rem;
  --space-16:   4rem;
  --space-20:   5rem;
  --space-24:   6rem;
  --space-32:   8rem;
  --space-40:   10rem;

  /* Layout */
  --container-max:  1440px;
  --container-pad:  clamp(1.5rem, 5vw, 6rem);
  --header-height:  100px;
  --header-height-scrolled: 72px;

  /* Transitions (Apple Spring-like) */
  --ease:         cubic-bezier(0.32, 0.72, 0, 1);
  --ease-spring:  cubic-bezier(0.175, 0.885, 0.32, 1.2);
  --ease-out:     cubic-bezier(0.22, 1, 0.36, 1);
  --duration-1:   150ms;
  --duration-2:   250ms;
  --duration-3:   400ms;
  --duration-4:   600ms;

  /* Z-index */
  --z-header:  900;
  --z-mobile:  950;
  --z-cursor:  9999;
  --z-overlay: 800;
}

/* ─── Reset ───────────────────────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.47059;
  font-weight: 400;
  letter-spacing: -0.022em;
  color: var(--color-black);
  background-color: var(--color-off-white);
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* ─── Typography ─────────────────────────────────────────────────────────────── */
.text-hero {
  font-size: clamp(2.625rem, 7vw, var(--text-hero));
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.text-display {
  font-size: clamp(2.125rem, 5vw, var(--text-6xl));
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.015em;
}

.text-heading {
  font-size: clamp(1.75rem, 3.5vw, var(--text-4xl));
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.015em;
}

.text-subheading {
  font-size: clamp(1.25rem, 2vw, var(--text-2xl));
  font-weight: 500;
  line-height: 1.16667;
  letter-spacing: -0.009em;
}

.text-body-lg {
  font-size: clamp(1rem, 1.2vw, var(--text-md));
  line-height: 1.47059;
  font-weight: 400;
  letter-spacing: -0.022em;
}

.text-body {
  font-size: var(--text-base);
  line-height: 1.7;
}

.text-sm { font-size: var(--text-sm); }
.text-xs { font-size: var(--text-xs); }

.text-meta {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ─── Layout ─────────────────────────────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: clamp(var(--space-20), 10vw, var(--space-40));
}

.section--sm {
  padding-block: clamp(var(--space-12), 6vw, var(--space-24));
}

.grid {
  display: grid;
  gap: var(--space-8);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ─── Custom Cursor ──────────────────────────────────────────────────────────── */
.cursor {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: var(--z-cursor);
  mix-blend-mode: difference;
}

.cursor__dot {
  position: absolute;
  width: 6px; height: 6px;
  background: var(--color-white);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width var(--duration-2) var(--ease),
              height var(--duration-2) var(--ease);
}

.cursor__ring {
  position: absolute;
  width: 36px; height: 36px;
  border: 1px solid rgba(255,255,255,0.5);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width var(--duration-3) var(--ease),
              height var(--duration-3) var(--ease),
              border-color var(--duration-2) var(--ease);
}

body.cursor--hover .cursor__dot  { width: 10px; height: 10px; }
body.cursor--hover .cursor__ring { width: 60px; height: 60px; border-color: rgba(183,255,60,0.6); }

/* ─── Header ─────────────────────────────────────────────────────────────────── */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  z-index: var(--z-header);
  background: rgba(245, 245, 247, 0.85); /* Matches --color-off-white */
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-3) var(--ease),
              background var(--duration-3) var(--ease),
              height var(--duration-3) var(--ease),
              box-shadow var(--duration-3) var(--ease);
}

.header.scrolled {
  height: var(--header-height-scrolled);
  border-bottom-color: var(--color-border);
  background: rgba(245, 245, 247, 0.95);
  box-shadow: 0 4px 24px rgba(0,0,0,0.03);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo */
.logo__img {
  display: block;
  height: 48px;
  width: auto;
  transition: height var(--duration-3) var(--ease), opacity var(--duration-2) var(--ease);
}
.header.scrolled .logo__img {
  height: 28px;
}
.logo__img:hover { opacity: 0.65; }

.logo__img--footer {
  filter: invert(1) brightness(2);
  opacity: 0.92;
}
.logo__img--footer:hover { opacity: 0.6; }

/* Desktop Nav */
.nav--desktop .nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-gray);
  position: relative;
  padding-block: var(--space-2);
  transition: color var(--duration-2) var(--ease);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--color-black);
  transition: width var(--duration-3) var(--ease);
}

.nav__link:hover,
.nav__link--active { color: var(--color-black); }

.nav__link:hover::after,
.nav__link--active::after { width: 100%; }

.nav__link--cta {
  background: var(--color-black);
  color: var(--color-white);
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 500;
  border: 1px solid var(--color-black);
  transition: transform var(--duration-2) var(--ease),
              background var(--duration-2) var(--ease),
              opacity var(--duration-2) var(--ease);
}

.nav__link--cta::after { display: none; }

.nav__link--cta:hover, .nav__link--active.nav__link--cta {
  background: rgba(0, 0, 0, 0.8);
  color: var(--color-white);
  transform: scale(1.02);
}

/* Mobile Toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  z-index: calc(var(--z-mobile) + 10);
  position: relative;
}

.nav__toggle-bar {
  display: block;
  width: 24px; height: 1.5px;
  background: var(--color-black);
  transition: transform var(--duration-3) var(--ease),
              opacity var(--duration-2) var(--ease);
  transform-origin: center;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.nav--mobile {
  position: fixed;
  inset: 0;
  z-index: var(--z-mobile);
  background: var(--color-black);
  display: flex;
  align-items: center;
  padding: var(--space-24) var(--container-pad);
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity var(--duration-4) var(--ease),
              transform var(--duration-4) var(--ease);
}

.nav--mobile:not([hidden]) {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.nav--mobile__inner {
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  padding-top: var(--header-height);
}

.nav--mobile__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.nav--mobile__item {
  overflow: hidden;
}

.nav--mobile__link {
  display: block;
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--color-white);
  padding-block: var(--space-2);
  transition: color var(--duration-2) var(--ease),
              transform var(--duration-2) var(--ease);
  transform: translateY(100%);
}

.nav--mobile:not([hidden]) .nav--mobile__link {
  transform: translateY(0);
}

.nav--mobile__link:hover {
  color: var(--color-accent);
}

.nav--mobile__item:nth-child(1) .nav--mobile__link { transition-delay: 50ms; }
.nav--mobile__item:nth-child(2) .nav--mobile__link { transition-delay: 80ms; }
.nav--mobile__item:nth-child(3) .nav--mobile__link { transition-delay: 110ms; }
.nav--mobile__item:nth-child(4) .nav--mobile__link { transition-delay: 140ms; }
.nav--mobile__item:nth-child(5) .nav--mobile__link { transition-delay: 170ms; }
.nav--mobile__item:nth-child(6) .nav--mobile__link { transition-delay: 200ms; }
.nav--mobile__item:nth-child(7) .nav--mobile__link { transition-delay: 230ms; }
.nav--mobile__item:nth-child(8) .nav--mobile__link { transition-delay: 260ms; }
.nav--mobile__item:nth-child(9) .nav--mobile__link { transition-delay: 290ms; }

.nav--mobile__footer {
  padding-bottom: var(--space-8);
}

.nav--mobile__entity {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray);
}

/* ─── Hero Section ───────────────────────────────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  position: relative;
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__inner {
  position: relative;
  z-index: 1;
  padding-block: var(--space-32);
}

.hero__meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.hero__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.hero__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gray);
}

.hero__title {
  font-size: clamp(2.625rem, 7.5vw, var(--text-hero));
  font-weight: 300;
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--color-black);
  margin-bottom: var(--space-10);
  max-width: 16ch;
}

.hero__title strong {
  font-weight: 700;
  display: block;
}

.hero__sub {
  font-size: clamp(var(--text-base), 1.4vw, var(--text-lg));
  color: var(--color-gray);
  line-height: 1.7;
  max-width: 52ch;
  margin-bottom: var(--space-12);
}

.hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-5);
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: var(--container-pad);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray);
}

.hero__scroll-line {
  width: 40px; height: 1px;
  background: var(--color-gray);
  transform-origin: left;
  animation: scrollLine 2s var(--ease) infinite;
}

@keyframes scrollLine {
  0%, 100% { transform: scaleX(0); opacity: 0; }
  50%       { transform: scaleX(1); opacity: 1; }
}

/* ─── Buttons ─────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: -0.01em;
  padding: 12px 22px;
  border-radius: 980px; /* Apple pill button */
  transition: background var(--duration-2) var(--ease),
              color var(--duration-2) var(--ease),
              border-color var(--duration-2) var(--ease),
              transform var(--duration-2) var(--ease);
  cursor: pointer;
}

.btn:hover { opacity: 0.9; }
.btn:active { transform: scale(0.96); opacity: 0.8; }

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  border: 1px solid var(--color-accent);
}

.btn--primary:hover {
  background: #0077ED; /* Slightly lighter blue on hover */
  border-color: #0077ED;
}

.btn--outline {
  background: transparent;
  color: var(--color-black);
  border: 1px solid var(--color-black);
}

.btn--outline:hover {
  background: var(--color-black);
  color: var(--color-white);
}

.btn--ghost {
  background: transparent;
  color: var(--color-accent);
  border: none;
  padding: var(--space-3) var(--space-6);
  font-weight: 500;
}

.btn--ghost:hover {
  color: #0077ED;
  text-decoration: underline;
}

.btn--link {
  background: transparent;
  color: var(--color-black);
  border: none;
  padding: 0;
  font-size: var(--text-base);
  font-weight: 500;
  letter-spacing: 0;
  gap: var(--space-3);
  position: relative;
}

.btn--link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--color-black);
  transition: width var(--duration-3) var(--ease);
}

.btn--link:hover::after { width: 100%; }
.btn--link:hover { transform: none; }

.btn__arrow {
  transition: transform var(--duration-2) var(--ease);
}
.btn:hover .btn__arrow { transform: translateX(3px); }

/* ─── Cards ───────────────────────────────────────────────────────────────────── */
.card {
  border: none;
  border-radius: 24px;
  padding: var(--space-8);
  position: relative;
  background: var(--color-white);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
  transition: box-shadow var(--duration-3) var(--ease),
              transform var(--duration-2) var(--ease-spring);
}

.card:hover {
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.08);
}

.card:active {
  transform: scale(0.98);
}

.card__meta {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: var(--space-5);
}

.card__title {
  font-size: clamp(var(--text-lg), 1.8vw, var(--text-2xl));
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.card__desc {
  font-size: var(--text-base);
  color: var(--color-gray);
  line-height: 1.65;
  margin-bottom: var(--space-6);
}

.card__link {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-black);
  transition: gap var(--duration-2) var(--ease);
}

.card:hover .card__link { gap: var(--space-4); }

/* ─── Section Labels ─────────────────────────────────────────────────────────── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.section-label__num {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.section-label__text {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gray);
}

/* ─── Divider ─────────────────────────────────────────────────────────────────── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--color-border);
  margin-block: var(--space-16);
}

/* ─── Stat Block ─────────────────────────────────────────────────────────────── */
.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-block: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.stat__value {
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  font-weight: 300;
  letter-spacing: -0.025em;
  line-height: 1;
}

.stat__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gray);
}

/* ─── Page Header ────────────────────────────────────────────────────────────── */
.page-hero {
  padding-top: calc(var(--header-height) + clamp(3rem, 8vw, 6rem));
  padding-bottom: clamp(3rem, 8vw, 6rem);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.page-hero__eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.page-hero__eyebrow::before {
  content: '';
  width: 20px; height: 1px;
  background: var(--color-accent);
  flex-shrink: 0;
}

.page-hero__title {
  font-size: clamp(2.5rem, 6vw, 5.5rem);
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 1.05;
  max-width: 14ch;
  margin-bottom: var(--space-8);
}

.page-hero__sub {
  font-size: clamp(var(--text-base), 1.3vw, var(--text-lg));
  color: var(--color-gray);
  line-height: 1.7;
  max-width: 60ch;
}

/* ─── Grid Background / Animated Canvas ─────────────────────────────────────── */
.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.4;
  z-index: 0;
}

/* ─── Tag / Pill ─────────────────────────────────────────────────────────────── */
.tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 10px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  color: var(--color-gray);
}

.tag--accent {
  border-color: var(--color-accent);
  color: var(--color-black);
  background: var(--color-accent);
}

/* ─── Number List ─────────────────────────────────────────────────────────────── */
.num-list {
  display: grid;
  gap: var(--space-8);
}

.num-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-6);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border);
}

.num-item__num {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  padding-top: 0.25em;
  font-variant-numeric: tabular-nums;
}

.num-item__title {
  font-size: var(--text-xl);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-3);
}

.num-item__text {
  color: var(--color-gray);
  font-size: var(--text-base);
  line-height: 1.65;
}

/* ─── Breadcrumb ─────────────────────────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: var(--space-8);
}

.breadcrumb a { color: var(--color-gray); transition: color var(--duration-2) var(--ease); }
.breadcrumb a:hover { color: var(--color-black); }
.breadcrumb__sep { color: var(--color-border); }

/* ─── Inline Data ─────────────────────────────────────────────────────────────── */
.data-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
}

.data-row__label {
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gray);
  flex: 0 0 140px;
}

.data-row__value {
  color: var(--color-black);
  flex: 1;
}

/* ─── Footer ─────────────────────────────────────────────────────────────────── */
.footer {
  background: var(--color-near-black);
  color: var(--color-white);
  padding-top: var(--space-24);
  padding-bottom: var(--space-12);
}

.footer__top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-20);
  margin-bottom: var(--space-16);
}

.footer__logo .logo__text {
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.14em;
}

.footer__tagline {
  margin-top: var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-gray);
  line-height: 1.6;
  max-width: 32ch;
}

.footer__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.footer__heading {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: var(--space-5);
}

.footer__heading--mt { margin-top: var(--space-8); }

.footer__list { display: flex; flex-direction: column; gap: var(--space-3); }

.footer__list a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.55);
  transition: color var(--duration-2) var(--ease);
}

.footer__list a:hover { color: var(--color-white); }

.footer__rule {
  height: 1px;
  background: var(--color-border-dark);
  margin-bottom: var(--space-8);
}

.footer__bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__copy,
.footer__entity {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.04em;
}

/* ─── Animation Utilities ────────────────────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-4) var(--ease),
              transform var(--duration-4) var(--ease);
}

.fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

.stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--duration-4) var(--ease),
              transform var(--duration-4) var(--ease);
}

.stagger.in-view > *:nth-child(1) { transition-delay: 0ms;   opacity: 1; transform: none; }
.stagger.in-view > *:nth-child(2) { transition-delay: 80ms;  opacity: 1; transform: none; }
.stagger.in-view > *:nth-child(3) { transition-delay: 160ms; opacity: 1; transform: none; }
.stagger.in-view > *:nth-child(4) { transition-delay: 240ms; opacity: 1; transform: none; }
.stagger.in-view > *:nth-child(5) { transition-delay: 320ms; opacity: 1; transform: none; }
.stagger.in-view > *:nth-child(6) { transition-delay: 400ms; opacity: 1; transform: none; }
.stagger.in-view > *:nth-child(7) { transition-delay: 480ms; opacity: 1; transform: none; }
.stagger.in-view > *:nth-child(8) { transition-delay: 560ms; opacity: 1; transform: none; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .fade-up, .stagger > * { opacity: 1; transform: none; }
  .cursor { display: none; }
}

/* ─── Skip Link ─────────────────────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -40px;
  left: var(--space-4);
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  z-index: 10000;
  border-radius: 2px;
  transition: top var(--duration-2) var(--ease);
}
.skip-link:focus { top: var(--space-4); }

/* ─── Ecosystem Category Strip ───────────────────────────────────────────────── */
.eco-category {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-6);
}

.eco-category__label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: var(--space-5);
}

.eco-items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.eco-item {
  border: 1px solid var(--color-border);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--duration-2) var(--ease),
              background var(--duration-2) var(--ease),
              color var(--duration-2) var(--ease);
  position: relative;
}

.eco-item:hover {
  border-color: var(--color-black);
  background: var(--color-black);
  color: var(--color-white);
}

/* ─── Form Styles ─────────────────────────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-black);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  border-radius: 2px;
  transition: border-color var(--duration-2) var(--ease),
              box-shadow var(--duration-2) var(--ease);
  appearance: none;
  -webkit-appearance: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-black);
  box-shadow: 0 0 0 3px rgba(10,10,10,0.06);
}

.form-textarea {
  resize: vertical;
  min-height: 160px;
}

.form-error {
  font-size: var(--text-xs);
  color: #E53935;
  font-weight: 500;
}

.form-success {
  padding: var(--space-8);
  border: 1px solid var(--color-accent);
  background: rgba(183,255,60,0.08);
  font-size: var(--text-base);
  font-weight: 500;
}

/* ─── Dark Section ───────────────────────────────────────────────────────────── */
.section--dark {
  background: var(--color-near-black);
  color: var(--color-white);
}

.section--dark .section-label__text { color: rgba(255,255,255,0.4); }
.section--dark .stat { border-top-color: var(--color-border-dark); }
.section--dark .stat__label { color: rgba(255,255,255,0.4); }
.section--dark .card { border-color: var(--color-border-dark); }
.section--dark .card:hover { border-color: rgba(255,255,255,0.4); }
.section--dark .card__desc { color: rgba(255,255,255,0.5); }

/* ─── Hover Reveal Card ──────────────────────────────────────────────────────── */
.hover-card {
  border: 1px solid var(--color-border);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--duration-3) var(--ease);
}

.hover-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-off-white);
  opacity: 0;
  transition: opacity var(--duration-3) var(--ease);
  z-index: 0;
}

.hover-card:hover { border-color: var(--color-black); }
.hover-card:hover::before { opacity: 1; }

.hover-card__content {
  position: relative;
  z-index: 1;
}

.hover-card__reveal {
  position: absolute;
  bottom: var(--space-5);
  right: var(--space-6);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--duration-2) var(--ease),
              transform var(--duration-2) var(--ease);
}

.hover-card:hover .hover-card__reveal {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Page Loading ───────────────────────────────────────────────────────────── */
.page-load {
  animation: pageFadeIn var(--duration-4) var(--ease) forwards;
}

@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Sticky Sidebar Styles ──────────────────────────────────────────────────── */
.sticky-top {
  position: sticky;
  top: calc(var(--header-height) + var(--space-8));
}

/* ─── Careers / Empty State ──────────────────────────────────────────────────── */
.empty-state {
  padding: var(--space-16) var(--space-8);
  border: 1px dashed var(--color-border);
  text-align: center;
}

.empty-state__icon {
  font-size: 2rem;
  margin-bottom: var(--space-4);
  opacity: 0.4;
}

.empty-state__title {
  font-size: var(--text-lg);
  font-weight: 500;
  margin-bottom: var(--space-3);
}

.empty-state__text {
  font-size: var(--text-sm);
  color: var(--color-gray);
}

/* ─── Timeline ───────────────────────────────────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--color-border);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-10);
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-8));
  top: 8px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-white);
  border: 1px solid var(--color-black);
  transform: translateX(-3.5px);
}

.timeline__item--active::before {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.timeline__label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: var(--space-2);
}

.timeline__title {
  font-size: var(--text-xl);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-3);
}

.timeline__desc {
  color: var(--color-gray);
  font-size: var(--text-base);
  line-height: 1.65;
}

/* ─── Full Ecosystem SVG Map ─────────────────────────────────────────────────── */
#ecosystemMap {
  width: 100%;
  overflow: hidden;
}

.eco-node {
  cursor: pointer;
  transition: opacity var(--duration-2) var(--ease);
}
.eco-node:hover { opacity: 0.8; }

/* ─── News / Article Cards ───────────────────────────────────────────────────── */
.article-card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-8);
  gap: var(--space-3);
}

.article-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray);
}

.article-card__cat {
  color: var(--color-accent);
  background: var(--color-black);
  padding: 2px 8px;
  font-size: 10px;
}

.article-card__title {
  font-size: clamp(var(--text-lg), 1.6vw, var(--text-xl));
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.article-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-gray);
  line-height: 1.65;
}

.article-card__link {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: gap var(--duration-2) var(--ease);
}

.article-card:hover .article-card__link { gap: var(--space-4); }

/* ─── Ecosystem Full Page ────────────────────────────────────────────────────── */
.eco-section {
  margin-bottom: var(--space-12);
}

.eco-section__header {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.eco-section__cat {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eco-section__line {
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.eco-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
}

.eco-card {
  background: var(--color-white);
  padding: var(--space-6);
  transition: background var(--duration-2) var(--ease);
  cursor: default;
}

.eco-card:hover {
  background: var(--color-off-white);
}

.eco-card__type {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: var(--space-3);
}

.eco-card__name {
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-2);
}

.eco-card__tagline {
  font-size: var(--text-sm);
  color: var(--color-gray);
  line-height: 1.5;
}