/* styles.css */

:root{
  --bg: #fbfaf7;
  --paper: #ffffff;
  --ink: #1f2937;
  --muted: #5b6472;

  --line: rgba(31,41,55,.14);
  --line2: rgba(31,41,55,.10);

  --accent: #2f6f8f;      /* calm teal-blue */
  --accent2: #c07a3a;     /* warm clay */
  --accent3: #3a7c5a;     /* soft green */

  --peak: #e9d7c6;        /* momentum window wash */
  --peak-ink: #7a4a1f;

  --radius: 18px;
  --radius2: 24px;

  --shadow: 0 10px 30px rgba(31,41,55,.08);

  --max: 980px;

  --s1: 8px;
  --s2: 12px;
  --s3: 16px;
  --s4: 20px;
  --s5: 28px;
  --s6: 36px;
  --s7: 48px;

  --lh: 1.45;
}

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

html, body{
  height: 100%;
}

body{
  margin: 0;
  background:
    radial-gradient(1200px 500px at 20% 0%, rgba(47,111,143,.10), transparent 55%),
    radial-gradient(900px 420px at 95% 10%, rgba(192,122,58,.10), transparent 55%),
    radial-gradient(700px 380px at 15% 85%, rgba(58,124,90,.08), transparent 60%),
    var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: var(--lh);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

a:focus-visible,
button:focus-visible{
  outline: 3px solid rgba(47,111,143,.35);
  outline-offset: 3px;
  border-radius: 10px;
}

.infographic{
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
  padding: var(--s7) 0;
}

/* ---------- HERO ---------- */

.hero{
  background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.86));
  border: 1px solid var(--line2);
  border-radius: var(--radius2);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 0;
}

.hero__content{
  padding: clamp(22px, 4vw, 40px);
  position: relative;
  z-index: 2;
}

.hero__kicker{
  margin: 0 0 var(--s2) 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--accent);
}

.hero__kicker::before{
  content: "";
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: linear-gradient(135deg, rgba(47,111,143,.95), rgba(58,124,90,.85));
  box-shadow: 0 6px 14px rgba(31,41,55,.10);
}

.hero__title{
  margin: 0;
  font-size: clamp(30px, 3.4vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.hero__subline{
  margin: var(--s3) 0 0 0;
  font-size: clamp(16px, 1.6vw, 18px);
  color: var(--muted);
  max-width: 48ch;
}

.hero__highlight{
  margin-top: var(--s5);
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 999px;
  background: rgba(233,215,198,.70);
  border: 1px solid rgba(122,74,31,.22);
}

.hero__highlight-label{
  font-weight: 700;
  color: var(--peak-ink);
  letter-spacing: .01em;
}

.hero__highlight-value{
  font-weight: 900;
  color: var(--peak-ink);
  font-size: 18px;
}

.hero__visual{
  position: relative;
  padding: clamp(18px, 3vw, 28px);
  display: grid;
  align-content: start;
  gap: var(--s3);
  background:
    linear-gradient(180deg, rgba(47,111,143,.06), rgba(255,255,255,0)),
    radial-gradient(520px 360px at 50% 20%, rgba(47,111,143,.10), transparent 60%);
}

.hero__figure{
  margin: 0;
  background: rgba(255,255,255,.7);
  border: 1px solid var(--line2);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 12px 28px rgba(31,41,55,.08);
}

.hero__image{
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
}

.hero__caption{
  padding: 12px 14px 14px;
  font-size: 13px;
  color: var(--muted);
}

.hero__silhouette{
  position: absolute;
  inset: auto 0 0 0;
  height: 220px;
  width: 100%;
  color: var(--accent);
  pointer-events: none;
  opacity: 0.35;
}

/* ---------- MODULES ---------- */

.module{
  margin-top: var(--s6);
  background: rgba(255,255,255,.88);
  border: 1px solid var(--line2);
  border-radius: var(--radius2);
  box-shadow: var(--shadow);
  padding: clamp(18px, 3.2vw, 34px);
}

.module__header{
  display: grid;
  gap: 8px;
  margin-bottom: var(--s4);
}

.module__title{
  margin: 0;
  font-size: clamp(20px, 2.2vw, 28px);
  letter-spacing: -0.015em;
}

.module__subtitle{
  margin: 0;
  color: var(--muted);
  max-width: 72ch;
}

/* ---------- GRAPH ---------- */

.graph{
  margin: var(--s4) 0 0 0;
}

.graph__svg{
  width: 100%;
  height: auto;
  display: block;
  color: var(--ink);
}

.graph__caption{
  margin-top: var(--s3);
  color: var(--muted);
  font-size: 14px;
  max-width: 88ch;
}

/* ---------- ZONES ---------- */

.zones{
  margin-top: var(--s5);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s4);
}

.zone{
  border: 1px solid var(--line2);
  border-radius: var(--radius);
  padding: var(--s4);
  background:
    linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,255,255,.84));
}

.zone__title{
  margin: 0 0 var(--s2) 0;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.zone__bullets{
  margin: 0;
  padding-left: 18px;
  color: var(--ink);
}

.zone__bullets li{
  margin: 6px 0;
}

.zone__psych{
  margin: var(--s3) 0 0 0;
  color: var(--muted);
  font-size: 14px;
}

.zone--peak{
  background:
    radial-gradient(900px 340px at 30% 0%, rgba(233,215,198,.85), rgba(255,255,255,.84) 55%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(255,255,255,.86));
  border-color: rgba(122,74,31,.25);
}

.zone__badge{
  display: inline-flex;
  margin: 0 0 var(--s2) 0;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(233,215,198,.85);
  border: 1px solid rgba(122,74,31,.22);
  color: var(--peak-ink);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: .02em;
}

/* ---------- COMPARISON ---------- */

.compare{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s4);
  margin-top: var(--s3);
}

.compare__card{
  border: 1px solid var(--line2);
  border-radius: var(--radius2);
  overflow: hidden;
  background: rgba(255,255,255,.92);
  box-shadow: 0 10px 24px rgba(31,41,55,.06);
  display: grid;
  grid-template-rows: auto auto 1fr;
}

.compare__header{
  padding: 16px 18px;
  border-bottom: 1px solid var(--line2);
  background:
    radial-gradient(520px 220px at 15% 0%, rgba(47,111,143,.10), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,255,255,.86));
}

.compare__title{
  margin: 0;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.compare__image{
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 1px solid var(--line2);
}

.compare__list{
  margin: 0;
  padding: 16px 18px 18px 36px;
}

.compare__list li{
  margin: 8px 0;
}

.compare__card--short .compare__header{
  background:
    radial-gradient(520px 220px at 15% 0%, rgba(58,124,90,.12), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,255,255,.86));
}

.compare__card--long .compare__header{
  background:
    radial-gradient(520px 220px at 15% 0%, rgba(192,122,58,.12), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,255,255,.86));
}

/* ---------- MATH PANEL ---------- */

.math{
  margin-top: var(--s3);
  border: 1px solid rgba(47,111,143,.16);
  border-radius: var(--radius2);
  background:
    radial-gradient(900px 320px at 20% 0%, rgba(47,111,143,.10), rgba(255,255,255,.84) 55%),
    linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,255,255,.86));
  padding: var(--s5);
}

.math__dl{
  margin: 0;
  display: grid;
  gap: var(--s3);
}

.math__row{
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--s3);
  align-items: baseline;
  padding-bottom: var(--s3);
  border-bottom: 1px dashed var(--line);
}

.math__row:last-child{
  border-bottom: none;
  padding-bottom: 0;
}

.math__label{
  font-weight: 700;
  color: var(--ink);
}

.math__value{
  margin: 0;
  font-weight: 900;
  letter-spacing: -0.01em;
  font-size: 18px;
  color: var(--accent);
}

.math__takeaway{
  margin: var(--s4) 0 0 0;
  padding-top: var(--s3);
  border-top: 1px solid var(--line2);
  color: var(--ink);
  font-size: 16px;
}

/* ---------- REFRAME ---------- */

.reframe__text{
  margin: var(--s2) 0 0 0;
  font-size: clamp(18px, 2.0vw, 24px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  max-width: 48ch;
}

.reframe__footer{
  margin: var(--s4) 0 0 0;
  color: var(--muted);
  max-width: 74ch;
}

/* ---------- FOOTER ---------- */

.footer{
  margin-top: var(--s6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--s3);
  padding: 18px 20px;
  border-radius: var(--radius2);
  border: 1px solid var(--line2);
  background: rgba(255,255,255,.72);
}

.footer__text{
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.footer__link{
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid rgba(47,111,143,.22);
  background: rgba(47,111,143,.06);
}

.footer__link:hover{
  background: rgba(47,111,143,.10);
}

/* ---------- RESPONSIVE ---------- */

@media (max-width: 980px){
  .hero{
    grid-template-columns: 1fr;
  }
  .hero__silhouette{
    height: 200px;
  }
  .zones{
    grid-template-columns: 1fr;
  }
  .compare{
    grid-template-columns: 1fr;
  }
  .footer{
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce){
  *{
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}