/* ==========================================================================
   Small Plus Mighty — Design System v1 (redesign 2026-07, Phase 1)
   Tokens · base · components. Brief: redesign-assets/design-brief-v3.md
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
  /* Colour — brand palette sampled from approved Route 1 mockup (2026-07-08) */
  --ground:      #FAF7F2;
  --ground-deep: #163A31;
  --ink:         #1A1E1C;
  --green:       #163A31;
  --lime:        #CFFF1A;
  --pink:        #CC4B7F;
  --light-pink:  #EBBDCF;
  --card:        #FFFFFF;

  /* Derived (tuned within brief tolerance) */
  --ink-soft:        rgba(26, 30, 28, 0.72);
  --ink-faint:       rgba(26, 30, 28, 0.5);
  --cream-soft:      rgba(250, 247, 242, 0.78);
  --cream-faint:     rgba(250, 247, 242, 0.55);
  --line:            rgba(26, 30, 28, 0.12);
  --line-on-deep:    rgba(250, 247, 242, 0.16);
  --green-tint:      rgba(22, 58, 49, 0.08);
  --shadow-warm:     0 20px 48px -20px rgba(18, 59, 46, 0.22), 0 4px 14px -6px rgba(18, 59, 46, 0.1);
  --shadow-card:     0 2px 6px -2px rgba(18, 59, 46, 0.08), 0 14px 34px -18px rgba(18, 59, 46, 0.14);

  /* Type */
  --font-display: "Fraunces", "Georgia", serif;
  --font-text: "Inter", "Helvetica Neue", Arial, sans-serif;
  --h1: clamp(2.8rem, 5vw, 4.5rem);
  --h2: clamp(2rem, 3.5vw, 3rem);
  --h3: clamp(1.375rem, 2vw, 1.75rem);
  --body: 1.125rem;
  --small: 0.9375rem;
  --eyebrow-size: 0.8125rem;

  /* Rhythm */
  --container: 1200px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section-pad: clamp(3.5rem, 6vw + 2rem, 8rem);
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --radius: 16px;
  --radius-sm: 10px;

  /* Motion — custom curves, no library defaults */
  --ease-out:    cubic-bezier(0.19, 0.66, 0.22, 1);
  --ease-inout:  cubic-bezier(0.65, 0.05, 0.36, 1);
  --ease-settle: cubic-bezier(0.26, 1.12, 0.42, 1);
  --dur-fast: 220ms;
  --dur-med: 480ms;
  --dur-slow: 900ms;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: var(--body);
  line-height: 1.7;
  font-feature-settings: "ss01" on, "cv05" on;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 560;
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 var(--space-3);
  text-wrap: balance;
  font-variation-settings: "opsz" 100;
}

h1 { font-size: var(--h1); line-height: 1.04; letter-spacing: -0.022em; }
h2 { font-size: var(--h2); line-height: 1.1; }
h3 { font-size: var(--h3); line-height: 1.2; font-weight: 540; }

h1 em, h2 em, h3 em, blockquote em {
  font-style: italic;
  font-weight: 480;
  font-variation-settings: "opsz" 110;
  letter-spacing: -0.01em;
}

p { margin: 0 0 var(--space-2); }
p:last-child { margin-bottom: 0; }

a { color: var(--green); text-decoration: none; }

::selection { background: var(--lime); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 4px;
}

.on-deep :focus-visible,
.on-ink :focus-visible { outline-color: var(--lime); }

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

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: clamp(1rem, 2.5vw, 2rem);
}

section { padding-block: var(--section-pad); }

/* Ground helpers */
.on-ink  { background: var(--ink);         color: var(--cream-soft); }
.on-deep { background: var(--ground-deep); color: var(--cream-soft); }
.on-ink  h1, .on-ink  h2, .on-ink  h3,
.on-deep h1, .on-deep h2, .on-deep h3 { color: var(--ground); }

/* ---------- Components ---------- */

/* Eyebrow label */
.eyebrow {
  display: inline-flex;
  align-items: center;
  font-size: var(--eyebrow-size);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: var(--space-3);
}
.on-ink .eyebrow, .on-deep .eyebrow { color: var(--lime); }

/* Section header block */
.section-head { max-width: 780px; margin-bottom: var(--space-5); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head p { color: var(--ink-soft); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-text);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1;
  padding: 1.0625rem 1.75rem;
  border-radius: 999px;
  border: 0;
  cursor: pointer;
  text-decoration: none;
  transition:
    background-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-settle),
    box-shadow var(--dur-fast) var(--ease-out);
  will-change: transform;
}
.btn-primary {
  background: var(--lime);
  color: var(--ink);
  box-shadow: 0 10px 22px -12px rgba(18, 59, 46, 0.4);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--ink);
  color: var(--lime);
  transform: translateY(-2px);
  box-shadow: 0 16px 30px -14px rgba(18, 59, 46, 0.45);
}
.btn-primary:active { transform: translateY(0); }
.btn .btn-arrow { transition: transform var(--dur-fast) var(--ease-settle); }
.btn:hover .btn-arrow { transform: translateX(3px); }

.btn-secondary {
  background: transparent;
  color: var(--green);
  box-shadow: inset 0 0 0 1.5px var(--green);
}
.btn-secondary:hover, .btn-secondary:focus-visible {
  background: var(--green-tint);
  transform: translateY(-2px);
}

/* Deep green rectangular button (Route 1 hero style) */
.btn-deep {
  background: var(--green);
  color: var(--ground);
  border-radius: 12px;
  padding: 1.1rem 2rem;
  box-shadow: 0 12px 26px -14px rgba(26, 46, 31, 0.55);
}
.btn-deep:hover, .btn-deep:focus-visible {
  background: var(--ink);
  color: var(--lime);
  transform: translateY(-2px);
  box-shadow: 0 16px 30px -14px rgba(26, 46, 31, 0.5);
}
.btn-deep:active { transform: translateY(0); }

/* Text link */
.text-link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--green);
  position: relative;
}
.text-link::after {
  content: "";
  position: absolute;
  left: 0; right: 1.4rem; bottom: -3px;
  height: 1.5px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-med) var(--ease-out);
}
.text-link:hover::after, .text-link:focus-visible::after { transform: scaleX(1); }
.text-link .arrow {
  transition: transform var(--dur-fast) var(--ease-settle);
  display: inline-block;
}
.text-link:hover .arrow { transform: translateX(4px); }
.on-deep .text-link, .on-ink .text-link { color: var(--lime); }

/* Warm card */
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  box-shadow: var(--shadow-card);
  transition: transform var(--dur-med) var(--ease-settle), box-shadow var(--dur-med) var(--ease-out);
}

/* Stat chip */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--lime);
  color: var(--ink);
  font-size: var(--small);
  font-weight: 600;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
}

/* Image frame */
.frame {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-warm);
  background: var(--card);
}
.frame img { width: 100%; height: 100%; object-fit: cover; }

/* Quote block */
.quote-display {
  font-family: var(--font-display);
  font-weight: 520;
  font-size: clamp(1.75rem, 3.4vw, 2.875rem);
  line-height: 1.28;
  letter-spacing: -0.014em;
  margin: 0;
}

/* Step number */
.step-num {
  font-family: var(--font-display);
  font-size: clamp(3rem, 5vw, 4.25rem);
  font-weight: 480;
  line-height: 1;
  color: var(--green);
  font-variation-settings: "opsz" 144;
}

/* Accordion */
.accordion { border-top: 1px solid var(--line); }
.accordion details { border-bottom: 1px solid var(--line); }
.accordion summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  list-style: none;
  padding: 1.375rem 0.25rem;
  font-family: var(--font-text);
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: clamp(1.125rem, 1.5vw, 1.25rem);
  line-height: 1.35;
  transition: color var(--dur-fast) var(--ease-out);
}
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary:hover { color: var(--green); }
.accordion summary .acc-icon {
  flex: 0 0 auto;
  width: 1.75rem; height: 1.75rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  align-self: center;
  color: var(--green);
  box-shadow: inset 0 0 0 1.5px var(--line);
  font-family: var(--font-text);
  font-size: 1.05rem;
  font-weight: 500;
  transition: transform var(--dur-med) var(--ease-settle), background-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.accordion details[open] summary .acc-icon {
  transform: rotate(45deg);
  background: var(--green);
  color: var(--ground);
  box-shadow: none;
}
.accordion .acc-body {
  padding: 0 2.75rem 1.5rem 0.25rem;
  color: var(--ink-soft);
  max-width: 60ch;
}

/* Nav — floating Somewhere-style pill */
.site-nav {
  position: fixed;
  inset: 1.1rem 0 auto 0;
  z-index: 50;
}
.nav-shell {
  width: min(calc(100vw - 2rem), calc(var(--container) * 1.2));
  max-width: none;
  margin-inline: auto;
  padding-inline: 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4.75rem;
  background: rgba(255, 255, 255, 0.94);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  backdrop-filter: blur(14px) saturate(1.3);
  border: 1px solid rgba(26, 30, 28, 0.07);
  border-radius: 999px;
  padding: 0.75rem 1rem 0.75rem 1.75rem;
  box-shadow: 0 14px 40px -18px rgba(18, 59, 46, 0.22);
}
.nav-logo { display: flex; align-items: center; }
.nav-logo img { height: 2.3rem; width: auto; display: block; }
.nav-logo .logo-mark { display: none; }
.nav-toggle { display: none; }
.nav-links .btn { white-space: nowrap; }
.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 1.55vw, 1.5rem);
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a:not(.btn) {
  color: var(--ink);
  font-size: 0.9875rem;
  font-weight: 500;
  position: relative;
  padding: 0.25rem 0;
  white-space: nowrap;
}
.nav-links a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1.5px;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-fast) var(--ease-out);
}
.nav-links a:not(.btn):hover::after,
.nav-links a:not(.btn):focus-visible::after { transform: scaleX(1); }
.nav-links .btn { min-width: 22.325rem; justify-content: center; padding: 1.02rem 1.7rem; font-size: 1rem; border: 0; box-shadow: none; }
.site-nav .nav-links a.btn,
.site-nav .nav-links a.btn:visited {
  background: var(--lime);
  color: var(--ink);
  box-shadow: none;
}
.site-nav .nav-links a.btn:hover,
.site-nav .nav-links a.btn:focus-visible {
  background: var(--ink);
  color: var(--lime);
  transform: translateY(-2px);
  box-shadow: none;
  outline: none;
}

body.assessment-mode .nav-cta { display: none; }

@media (max-width: 760px) {
  .site-nav { position: fixed; inset: 0.75rem 0 auto 0; }
  .nav-shell { width: min(calc(100vw - 1rem), var(--container)); }
  .nav-inner {
    position: relative;
    padding: 0.68rem 0.78rem 0.68rem 1rem;
    border-radius: 22px;
    align-items: center;
  }
  .nav-logo .logo-word { display: block; height: 1.55rem; max-width: 11rem; }
  .nav-logo .logo-mark { display: none; }
  .nav-toggle {
    display: inline-flex;
    width: 2.6rem;
    height: 2.6rem;
    border: 0;
    border-radius: 999px;
    background: var(--green);
    color: var(--ground);
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 0.24rem;
    cursor: pointer;
  }
  .nav-toggle span:not(.sr-only) {
    width: 1.12rem;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast) var(--ease-out);
  }
  .nav-open .nav-toggle span:nth-child(2) { transform: translateY(6px) rotate(45deg); }
  .nav-open .nav-toggle span:nth-child(3) { opacity: 0; }
  .nav-open .nav-toggle span:nth-child(4) { transform: translateY(-6px) rotate(-45deg); }
  .nav-inner nav {
    position: absolute;
    top: calc(100% + 0.55rem);
    left: 0;
    right: 0;
    pointer-events: none;
  }
  .nav-links {
    display: grid;
    gap: 0;
    padding: 0.65rem;
    border-radius: 22px;
    background: #FFFFFF;
    border: 1px solid rgba(26, 30, 28, 0.08);
    box-shadow: 0 24px 52px -24px rgba(18, 59, 46, 0.42);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), visibility 0ms linear var(--dur-fast);
  }
  .nav-open .nav-links {
    pointer-events: auto;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition-delay: 0ms;
  }
  .nav-links li,
  .nav-links li.nav-thin { display: block; }
  .nav-links a:not(.btn) {
    display: block;
    padding: 0.58rem 0.9rem;
    font-size: 1rem;
    line-height: 1.15;
  }
  .nav-links a:not(.btn)::after { display: none; }
  .nav-links .btn {
    width: 100%;
    justify-content: center;
    margin-top: 0.35rem;
    padding: 0.78rem 1rem;
    color: var(--ink);
  }
}

/* Chat launcher (visual only, disabled at launch) */
.chat-launcher {
  position: fixed;
  right: 1.5rem; bottom: 1.5rem;
  z-index: 40;
  width: 3.4rem; height: 3.4rem;
  border-radius: 50%;
  border: 0;
  background: var(--ground-deep);
  color: var(--ground);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-warm);
  cursor: not-allowed;
  opacity: 0.92;
}
.chat-launcher svg { width: 1.4rem; height: 1.4rem; }

/* ---------- Reveal system (JS adds .in) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-settle);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal.in { opacity: 1; transform: none; }

/* Stagger children */
.stagger > * {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-settle);
}
.stagger.in > * { opacity: 1; transform: none; }
.stagger.in > *:nth-child(1) { transition-delay: 0ms; }
.stagger.in > *:nth-child(2) { transition-delay: 90ms; }
.stagger.in > *:nth-child(3) { transition-delay: 180ms; }
.stagger.in > *:nth-child(4) { transition-delay: 270ms; }
.stagger.in > *:nth-child(5) { transition-delay: 360ms; }
.stagger.in > *:nth-child(6) { transition-delay: 450ms; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
  .reveal, .stagger > * { opacity: 1; transform: none; }
}