/* =====================================================================
   Flowing with Charlie – single stylesheet
   Source of truth for tokens: design/FLOWING-MOTION-PREMIUM-BRIEF.md §4/§5
   ===================================================================== */

/* ===== Tokens ===== */
:root {
  /* Palette */
  --canvas: #FFFAF0;
  --surface-warm: #F7EFDF;
  --surface-sage: #EDF3E7;
  --surface-peach: #F5DFCC;
  --surface-lavender: #E8E1EF;
  --ink: #30483E;
  --text-muted: #657065;
  --terracotta: #AD694C;        /* lines and large type only (4.1:1 on canvas) */
  --terracotta-text: #9A5A3F;   /* small accent text (5.2:1) */
  --sage: #7A8A5E;              /* lines only (3.6:1) */
  --sage-deep: #4F6450;         /* small green text (6.2:1) */
  --text-on-tint: #56605A;      /* body text on peach/lavender cards (≥5:1) */
  --ocean: #5B8A9A;             /* Stories accent lines – reviewed in stage 2 */
  --ocean-text: #3F6776;        /* small Stories text (5.9:1) */
  --line: #E6DCCB;
  --white: #FFFFFF;

  /* Type */
  --font-heading: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Nunito', 'Segoe UI', sans-serif;

  /* Shape */
  --radius-sm: 14px;
  --radius-card: 28px;
  --radius-media: 40px;
  --radius-section: 64px;      /* rounded chapter ends (transition 2) */
  --radius-pill: 999px;

  /* Motion */
  --motion-fast: 180ms;
  --motion-ui: 240ms;
  --motion-reveal: 640ms;
  --motion-aperture: 960ms;    /* photo opening like an eye (Motion Kit 02) */
  --motion-breath: 6000ms;
  --motion-stagger: 70ms;
  --ease-arrive: cubic-bezier(.22, 1, .36, 1);
  --ease-ui: cubic-bezier(.2, .7, .2, 1);
  --ease-breath: cubic-bezier(.45, 0, .55, 1);

  /* Layout */
  --nav-height: 72px;
}

/* ===== Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-height) + 8px); }
body { font-family: var(--font-body); font-weight: 300; color: var(--ink); line-height: 1.7; background: var(--canvas); }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
em { font-style: italic; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

.skip-link { position: fixed; top: -100px; left: 20px; z-index: 2000; padding: 12px 22px; background: var(--ink); color: var(--white); border-radius: var(--radius-pill); }
.skip-link:focus { top: 12px; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 2px solid var(--terracotta); outline-offset: 4px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 13px 28px;
  border-radius: var(--radius-pill); border: 2px solid var(--ink); background: var(--ink); color: var(--white);
  font-family: var(--font-body); font-weight: 600; font-size: .95rem; letter-spacing: .3px; cursor: pointer;
  transition: background-color var(--motion-ui) var(--ease-ui), border-color var(--motion-ui) var(--ease-ui), color var(--motion-ui) var(--ease-ui), transform var(--motion-fast) var(--ease-ui);
}
.btn:active { transform: scale(.98); }
.btn:hover { background: var(--sage-deep); border-color: var(--sage-deep); }
.btn-light { background: var(--white); color: var(--ink); border-color: var(--white); }
.btn-light:hover { background: var(--surface-warm); border-color: var(--surface-warm); color: var(--ink); }

/* ===== Navigation ===== */
.navbar {
  position: fixed; inset: 0 0 auto 0; z-index: 1000; padding: 16px 0;
  background: rgba(255, 250, 240, .97);
  transition: box-shadow var(--motion-ui) var(--ease-ui), background-color var(--motion-ui) var(--ease-ui);
}
.navbar.scrolled { background: rgba(255, 250, 240, .99); box-shadow: 0 1px 0 var(--line), 0 10px 30px rgba(48, 72, 62, .06); }
.nav-container { max-width: 1260px; margin: 0 auto; padding: 0 24px; display: flex; justify-content: space-between; align-items: center; }
.nav-logo { display: inline-flex; align-items: center; gap: 12px; font-family: var(--font-heading); font-size: 1.7rem; font-weight: 600; color: var(--ink); white-space: nowrap; }
.nav-logo-mark { width: 48px; height: 48px; flex: none; border-radius: 50%; }
.nav-logo em { font-weight: 400; color: var(--terracotta-text); }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-item { position: relative; }
.nav-main { display: flex; flex-direction: column; align-items: center; padding: 6px 12px; line-height: 1.15; }
.nav-word { font-family: var(--font-heading); font-size: 1.15rem; font-weight: 600; color: var(--ink); }
.nav-hint { font-size: .66rem; text-transform: uppercase; letter-spacing: 1.2px; color: var(--text-muted); }
.has-sub:nth-child(2) .nav-word { color: var(--terracotta-text); }
.has-sub:nth-child(3) .nav-word { color: var(--ocean-text); }
.nav-plain { padding: 6px 14px; font-weight: 400; color: var(--ink); }
.nav-plain:hover, .nav-main:hover .nav-hint { color: var(--ink); }
.nav-word, .nav-plain {
  background-image: linear-gradient(var(--terracotta), var(--terracotta)); background-repeat: no-repeat;
  background-origin: content-box; background-position: left bottom; background-size: 0% 2px;
  transition: background-size var(--motion-ui) var(--ease-arrive);
}
/* Motion Kit 05: a terracotta rule grows from the left; no colour or weight change. */
.nav-main:focus-visible .nav-word, .nav-plain:focus-visible { background-size: 100% 2px; }
@media (hover: hover) and (pointer: fine) {
  .nav-main:hover .nav-word, .nav-plain:hover { background-size: 100% 2px; }
}
.nav-cta { margin-left: 6px; padding: 8px 20px; border-radius: var(--radius-pill); border: 1.5px solid #BAC6B7; color: var(--ink); font-weight: 600; font-size: .9rem; transition: background-color var(--motion-fast) var(--ease-ui), color var(--motion-fast) var(--ease-ui); }
.nav-cta:hover { background: var(--ink); border-color: var(--ink); color: var(--white); }

.submenu {
  position: absolute; top: 100%; left: 50%; transform: translate(-50%, 6px); min-width: 220px;
  background: var(--white); border-radius: var(--radius-sm); box-shadow: 0 12px 34px rgba(48, 72, 62, .14);
  padding: 10px; opacity: 0; visibility: hidden;
  transition: opacity var(--motion-ui) var(--ease-ui), transform var(--motion-ui) var(--ease-ui), visibility var(--motion-ui);
}
.has-sub:hover .submenu, .has-sub:focus-within .submenu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.submenu a { display: block; padding: 9px 14px; border-radius: 8px; font-size: .92rem; font-weight: 400; }
.submenu a:hover { background: var(--surface-sage); color: var(--ink); }

.lang-switch { display: flex; align-items: center; gap: 2px; margin-left: 10px; font-size: .85rem; color: var(--text-muted); }
.lang-switch button { background: none; border: none; font: inherit; color: var(--text-muted); cursor: pointer; padding: 4px; min-height: 44px; min-width: 32px; }
.lang-switch button.active { color: var(--ink); font-weight: 600; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 9px; }
.nav-toggle span { display: block; width: 26px; height: 2px; margin: 6px 0; background: var(--ink); transition: transform var(--motion-ui) var(--ease-ui); }

/* ===== Hero ===== */
.hero { position: relative; overflow: hidden; padding: 145px 40px 0; background: var(--canvas); }
.hero-inner { max-width: 1160px; margin: auto; display: grid; grid-template-columns: 1.05fr 1fr; gap: 45px; align-items: center; min-height: 530px; }
.hero-content { position: relative; z-index: 1; padding-bottom: 42px; }

.eyebrow { font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 3px; color: var(--sage-deep); margin-bottom: 12px; }
.eyebrow.center { text-align: center; }
.hero .eyebrow { font-size: 12px; letter-spacing: 2.8px; color: var(--text-muted); margin-bottom: 24px; }

.hero h1 { font-family: var(--font-heading); font-size: clamp(52px, 5.7vw, 82px); font-weight: 400; line-height: 1.03; letter-spacing: -2.4px; color: var(--ink); }
.hero h1 > span, .hero h1 em { display: block; white-space: nowrap; }
.hero h1 em { color: var(--terracotta); font-weight: 400; margin-top: 7px; }
.hero-text { font-size: 17px; line-height: 1.8; max-width: 380px; margin: 26px 0 30px; color: var(--text-muted); }
.hero-buttons { display: flex; flex-wrap: wrap; align-items: center; gap: 26px; }
.hero-about { font-size: 15px; border-bottom: 1px solid #AEB9AA; padding: 5px 0; }
.hero-about:hover { border-color: var(--ink); }

/* Small, still portrait next to the introduction */
.host-note { display: flex; align-items: center; gap: 14px; margin-top: 34px; }
.host-photo { position: relative; flex: 0 0 48px; width: 48px; height: 48px; border-radius: 50%; overflow: hidden; background: var(--surface-warm); box-shadow: 0 0 0 1px var(--line); }
.host-avatar { position: absolute; width: 200%; height: 200%; max-width: none; left: -50%; top: -10%; object-fit: cover; object-position: 50% 50%; }
.host-note strong, .host-note span { display: block; color: var(--ink); }
.host-note strong { font-size: 14px; font-weight: 600; line-height: 1.3; }
.host-note span { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

/* Three quiet entry points below the hero */
.world-links { position: relative; z-index: 2; max-width: 1000px; margin: 25px auto 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.world-links a { display: flex; align-items: center; gap: 17px; padding: 22px 26px; border-radius: 26px; background: #E0EAD8; transition: transform var(--motion-ui) var(--ease-ui); }
.world-links a:nth-child(2) { background: var(--surface-peach); }
.world-links a:nth-child(3) { background: var(--surface-lavender); }
.world-icon { font-size: 33px; line-height: 1; color: #526451; }
.world-links strong { font-family: var(--font-heading); font-size: 26px; font-weight: 600; line-height: 1.2; display: block; }
.world-links small { font-size: 13px; color: #586457; }
.world-arrow { margin-left: auto; font-size: 22px; font-weight: 300; transition: transform var(--motion-fast) var(--ease-ui); }
@media (hover: hover) and (pointer: fine) {
  .world-links a:hover { transform: translateY(-3px); }
  .world-links a:hover .world-arrow { transform: translate(2px, -2px); }
}

/* ===== Breathing motif =====
   One six-second phase drives photo, rings, petals and haze.
   Photo framing is tuned per breakpoint via --photo-* custom properties. */
.breathing-hero {
  --breath-state: running;
  --photo-size: 100%;
  --photo-left: 0%;
  --photo-top: 0%;
  position: relative; min-width: 0; align-self: center;
}
.breathing-hero.is-paused { --breath-state: paused; }
.breathing-art { position: relative; width: 100%; aspect-ratio: 1; isolation: isolate; }
.breathing-haze,
.breathing-petals,
.breathing-rings,
.breathing-photo,
.breathing-photo img,
.breath-in,
.breath-out,
.breath-track > span {
  animation-duration: var(--motion-breath);
  animation-timing-function: var(--ease-breath);
  animation-iteration-count: infinite;
  animation-play-state: var(--breath-state);
}
.breathing-haze { position: absolute; inset: -5%; border-radius: 50%; background: radial-gradient(circle, #D9B58F38 0%, #E8D6B425 46%, transparent 70%); animation-name: breath-haze; pointer-events: none; }
.breathing-lines { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.breathing-petals { stroke: var(--terracotta); stroke-width: .85; opacity: .42; transform-origin: 300px 300px; animation-name: breath-petals; }
.breathing-petals ellipse:nth-child(even) { stroke: var(--sage); }
.breathing-rings { stroke: var(--terracotta); stroke-width: 1; opacity: .6; transform-origin: 300px 300px; animation-name: breath-rings; }
.breathing-rings circle:nth-child(2) { stroke: var(--sage); opacity: .75; }
.breathing-rings circle:nth-child(3) { opacity: .5; }
.breathing-dots { fill: var(--sage); opacity: .6; }

.breathing-photo {
  position: absolute; inset: 22%; border-radius: 50%; overflow: hidden; background: #D5DBCA;
  box-shadow: 0 0 0 7px var(--canvas), 0 0 0 8px #AD694C80, 0 24px 45px -24px #61462D45;
  animation-name: breath-aperture;
}
.breathing-photo img {
  position: absolute; max-width: none;
  width: var(--photo-size); height: var(--photo-size); left: var(--photo-left); top: var(--photo-top);
  object-fit: cover; object-position: 50% 40%;
  transform-origin: 50% 45%;
  animation-name: breath-photo;
}

.breathing-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 0 36px; margin-top: 5px; min-height: 55px; }
.breath-guide { position: relative; min-width: 160px; height: 44px; }
.breath-guide > span { position: absolute; top: 0; left: 0; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 2px; color: var(--sage-deep); white-space: nowrap; }
.breath-in { animation-name: breath-in; animation-timing-function: linear; }
.breath-out { animation-name: breath-out; animation-timing-function: linear; opacity: 0; }
.breath-still { display: none; }
.breath-track { position: absolute; bottom: 6px; left: 0; width: 140px; height: 2px; background: #C5C8B780; border-radius: 4px; overflow: hidden; }
.breath-track > span { display: block; width: 100%; height: 100%; background: var(--terracotta); transform-origin: left; transform: scaleX(.08); animation-name: breath-progress; }

.breath-toggle {
  display: inline-flex; align-items: center; gap: 9px; min-height: 44px; padding: 10px 16px;
  font: inherit; font-size: 13px; font-weight: 400; color: var(--text-muted); white-space: nowrap; cursor: pointer;
  background: transparent; border: 1px solid #C6CEBD; border-radius: var(--radius-pill);
  transition: background-color var(--motion-fast) var(--ease-ui), border-color var(--motion-fast) var(--ease-ui), color var(--motion-fast) var(--ease-ui);
}
/* Icon shows the current state: two bars while running, a triangle while paused. */
.breath-toggle::before { content: ''; width: 8px; height: 10px; border-left: 2.5px solid currentColor; border-right: 2.5px solid currentColor; }
.breath-toggle[aria-pressed="true"] { background: #E2E9D8; border-color: var(--sage-deep); color: var(--ink); }
.breath-toggle[aria-pressed="true"]::before { width: 0; height: 0; border-style: solid; border-width: 5px 0 5px 8px; border-color: transparent transparent transparent currentColor; }
.breath-toggle:hover { border-color: var(--sage-deep); color: var(--ink); }
.breath-toggle[hidden] { display: none; }

.breathing-hero.is-user-paused .breath-in,
.breathing-hero.is-user-paused .breath-out { visibility: hidden; }
.breathing-hero.is-user-paused .breath-still { display: block; }

@keyframes breath-aperture { 0%, 100% { transform: scale(.94); } 50% { transform: scale(1.06); } }
@keyframes breath-photo { 0%, 100% { transform: scale(1.02); } 50% { transform: scale(1.1); } }
@keyframes breath-rings { 0%, 100% { transform: scale(.9); opacity: .45; } 50% { transform: scale(1.08); opacity: .75; } }
@keyframes breath-petals { 0%, 100% { transform: rotate(-5deg) scale(.88); } 50% { transform: rotate(4deg) scale(1.1); } }
@keyframes breath-haze { 0%, 100% { transform: scale(.85); opacity: .5; } 50% { transform: scale(1.15); opacity: 1; } }
@keyframes breath-progress { 0%, 100% { transform: scaleX(.08); } 50% { transform: scaleX(1); } }
/* Sequential cross-fade: the two cues never overlap. */
@keyframes breath-in { 0%, 44% { opacity: 1; } 47%, 97% { opacity: 0; } 100% { opacity: 1; } }
@keyframes breath-out { 0%, 49% { opacity: 0; } 52%, 94% { opacity: 1; } 97%, 100% { opacity: 0; } }

/* ===== Transition: hero → yoga (organic transition 1 of max. 3) ===== */
/* The bottom strip is already sage so a fractional edge cannot blend into a light seam. */
.flow-intro { position: relative; isolation: isolate; overflow: hidden; text-align: center; padding: 80px 20px 110px; background: linear-gradient(var(--canvas) calc(100% - 20px), var(--surface-sage) 0); }
.flow-intro::after {
  content: ''; position: absolute; z-index: -1; left: -20%; right: -20%; bottom: -1px;
  height: clamp(48px, 7vw, 96px); background: var(--surface-sage);
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
}
.flow-intro + .flow { margin-top: -1px; }
.flow-intro p { font-family: var(--font-heading); font-size: 34px; line-height: 1.25; color: var(--ink); }
.flow-intro > span { display: block; margin-top: 6px; font-size: 15px; color: var(--sage-deep); }

/* ===== Responsive ===== */
@media (min-width: 1440px) {
  .hero { padding-top: 165px; }
}

@media (max-width: 1000px) {
  .hero { padding: 120px 28px 0; }
  .hero-inner { gap: 20px; }
  .world-links a { padding: 20px; gap: 12px; }
}

@media (min-width: 701px) and (max-width: 1000px) {
  .hero-inner { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: clamp(42px, 5.8vw, 58px); letter-spacing: -1.6px; }
  .breathing-hero { --photo-size: 100%; --photo-left: 0%; --photo-top: 0%; }
  .breathing-photo { inset: 17%; }
  .breathing-rings circle:nth-child(3) { display: none; }
  .breathing-footer { padding: 0; gap: 10px; flex-wrap: wrap; }
}

@media (max-width: 960px) {
  :root { --nav-height: 64px; }
  .navbar { padding: 10px 0; }
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0; display: none;
    max-height: calc(100dvh - var(--nav-height)); overflow-y: auto;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--canvas); padding: 12px 24px 24px; box-shadow: 0 12px 24px rgba(48, 72, 62, .08);
  }
  .nav-links.active { display: flex; }
  .navbar.menu-open { background: var(--canvas); }
  .nav-item { border-bottom: 1px solid var(--surface-warm); }
  .nav-main { flex-direction: row; align-items: baseline; gap: 10px; padding: 12px 0; }
  .nav-word { font-size: 1.25rem; }
  .nav-plain { display: block; padding: 14px 0; }
  .nav-cta { display: inline-block; margin: 14px 0; }
  .submenu { position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none; padding: 0 0 10px 12px; min-width: 0; background: transparent; }
  .has-sub:hover .submenu, .has-sub:focus-within .submenu { transform: none; }
  .lang-switch { margin: 12px 0 0; }
}

@media (max-width: 700px) {
  .hero { padding: 104px 22px 0; }
  .hero-inner { grid-template-columns: 1fr; gap: 10px; min-height: 0; }
  .hero-content { padding: 0; }
  .hero .eyebrow { margin-bottom: 18px; }
  .hero h1 { font-size: clamp(42px, 11.5vw, 54px); letter-spacing: -1.4px; }
  .hero h1 > span, .hero h1 em { white-space: normal; }
  .hero-text { margin: 20px 0 26px; font-size: 16px; max-width: 360px; }
  .hero-buttons { gap: 20px; }
  .host-note { margin-top: 26px; }

  /* Fewer lines, larger person on small screens */
  .breathing-hero { --photo-size: 100%; --photo-left: 0%; --photo-top: 0%; width: min(100%, 440px); margin: 22px auto 0; }
  .breathing-photo { inset: 15%; }
  .breathing-rings circle:nth-child(3), .breathing-dots { display: none; }
  .breathing-petals { opacity: .32; }
  .breathing-footer { padding: 0 4px; gap: 12px; }
  .breath-guide { min-width: 130px; }
  .breath-track { width: 115px; }
  .breath-toggle { padding-inline: 14px; }

  .world-links { margin-top: 20px; grid-template-columns: 1fr; gap: 10px; }
  .world-links a { padding: 16px 24px; border-radius: 24px; }
  .world-links strong { font-size: 25px; }
  .world-icon { width: 35px; }
  .flow-intro { padding: 60px 22px 90px; }
  .flow-intro p { font-size: 28px; margin-bottom: 4px; }
}

@media (max-width: 640px) {
  .nav-logo { font-size: 1.35rem; gap: 9px; }
  .nav-logo-mark { width: 38px; height: 38px; }
}

/* ===== Reduced motion: a composed still version ===== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .breath-in, .breath-out, .breath-track, .breath-toggle { display: none; }
  .breath-still { display: block; }
}