/* newAIway — landing page styles
   Sections: tokens, reset, layout, header, hero, timeline, stakes,
   method, founders, briefing, footer, responsive.

   Sizes are fluid: every clamp() is min / preferred / max, where the
   preferred part grows with the viewport width. The design reference
   (1440px wide) sits in the middle of each range, so the page keeps the
   same proportions from a 360px phone up to a 2560px display. */

:root {
  /* ---- palette ---- */
  --navy: #0E2438;
  --ink: #12324A;
  --cream: #FAF8F4;
  --amber: #E8A33D;
  --bronze: #B5761C;
  --stone: #E7E2D8;

  --ink-82: rgba(18, 50, 74, 0.82);
  --ink-76: rgba(18, 50, 74, 0.76);
  --ink-74: rgba(18, 50, 74, 0.74);
  --ink-68: rgba(18, 50, 74, 0.68);
  --ink-66: rgba(18, 50, 74, 0.66);
  --ink-62: rgba(18, 50, 74, 0.62);
  --ink-55: rgba(18, 50, 74, 0.55);
  --ink-48: rgba(18, 50, 74, 0.48);
  --ink-line: rgba(18, 50, 74, 0.20);
  --ink-line-soft: rgba(18, 50, 74, 0.14);
  --ink-border: rgba(18, 50, 74, 0.24);

  --cream-86: rgba(250, 248, 244, 0.86);
  --cream-78: rgba(250, 248, 244, 0.78);
  --cream-74: rgba(250, 248, 244, 0.74);
  --cream-72: rgba(250, 248, 244, 0.72);
  --cream-52: rgba(250, 248, 244, 0.52);
  --cream-50: rgba(250, 248, 244, 0.50);
  --cream-line: rgba(250, 248, 244, 0.16);

  /* ---- fonts ---- */
  --font-sans: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --font-serif: 'Instrument Serif', Georgia, serif;

  /* ---- fluid display scale (serif headlines) ---- */
  --display-hero: clamp(40px, 4vw + 24.4px, 116px);      /* 82px @1440 */
  --display-lg: clamp(32px, 2.48vw + 22.3px, 82px);      /* 58px @1440 */
  --display-md: clamp(30px, 1.9vw + 22.6px, 72px);       /* 50px @1440 */
  --display-sm: clamp(24px, 0.76vw + 21px, 44px);        /* 32px @1440 */
  --display-xs: clamp(22px, 0.48vw + 20.1px, 36px);      /* 27px @1440 */
  --display-num: clamp(34px, 1.14vw + 29.5px, 62px);     /* 46px @1440 */
  --brand-size: clamp(21px, 0.38vw + 19.5px, 32px);      /* 25px @1440 */
  --brand-size-sm: clamp(18px, 0.29vw + 16.9px, 26px);   /* 21px @1440 */

  /* ---- fluid text scale (sans body copy) ---- */
  --text-xl: clamp(17px, 0.19vw + 16.3px, 24px);         /* 19px @1440 */
  --text-lg: clamp(16.5px, 0.14vw + 16px, 22px);         /* 18px @1440 */
  --text-md: clamp(16px, 0.1vw + 15.5px, 21px);          /* 17px @1440 */
  --text-base: clamp(15.5px, 0.05vw + 15.3px, 19px);     /* 16px @1440 */
  --text-sm: clamp(14.5px, 0.05vw + 14.3px, 18px);       /* 15px @1440 */

  /* ---- fluid mono scale (labels, nav, eyebrows) ---- */
  --mono-lg: clamp(11px, 0.57vw + 3.3px, 14.5px);        /* 11.5px @1440 */
  --mono-md: clamp(10.5px, 0.55vw + 3.1px, 14px);        /* 11px @1440 */
  --mono-sm: clamp(10px, 0.52vw + 3px, 13px);            /* 10.5px @1440 */
  --mono-input: clamp(14px, 0.28vw + 10px, 18px);        /* 14px @1440 */

  /* ---- fluid layout ---- */
  --content-width: clamp(1200px, 46.4vw + 532px, 1760px);
  --gutter: clamp(20px, 2.8vw, 64px);
  --section-y: clamp(72px, 9vw, 168px);
  --gap-col: clamp(40px, 6.1vw, 110px);                  /* 88px @1440 */
  --head-gap-b: clamp(44px, 5.5vw, 100px);               /* 79px @1440 */
  --header-h: clamp(60px, 4.7vw, 84px);                  /* 68px @1440 */
}

/* ---------- reset ---------- */

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--cream);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul { list-style: none; }

/* ---------- layout primitives ---------- */

.container {
  max-width: var(--content-width);
  margin: 0 auto;
}

.section {
  padding: var(--section-y) var(--gutter);
  border-bottom: 1px solid var(--ink-line-soft);
}

.section--plain { border-bottom: 0; }

.section--dark {
  background: var(--navy);
  color: var(--cream);
  border-bottom: 0;
}

.section__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
  gap: var(--gap-col);
  margin-bottom: var(--head-gap-b);
}

.section__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: var(--display-md);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  text-wrap: pretty;
}

.section__title:last-child { margin-bottom: 0; }

.section__lead {
  font-size: var(--text-lg);
  line-height: 1.65;
  color: var(--ink-76);
  max-width: 62ch;
  text-wrap: pretty;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--mono-md);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bronze);
}

.eyebrow--amber { color: var(--amber); }

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--navy);
  border-bottom: 1px solid rgba(232, 163, 61, 0.28);
}

.site-header__inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(16px, 2.2vw, 40px);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.brand__name {
  font-family: var(--font-serif);
  font-size: var(--brand-size);
  color: var(--cream);
  letter-spacing: 0.01em;
}

.brand__place {
  font-family: var(--font-mono);
  font-size: var(--mono-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cream-52);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.1vw, 38px);
  font-family: var(--font-mono);
  font-size: var(--mono-md);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.1vw, 38px);
}

.nav__link {
  color: var(--cream-72);
  transition: color 0.18s ease;
}

.nav__link:hover,
.nav__link:focus-visible { color: var(--amber); }

.nav__link--cta {
  color: var(--navy);
  background: var(--amber);
  padding: 0.8em 1.45em;
  transition: background 0.18s ease;
}

.nav__link--cta:hover,
.nav__link--cta:focus-visible {
  background: var(--cream);
  color: var(--navy);
}

/* ---------- hero ---------- */

.hero {
  padding-top: clamp(64px, 8.9vw, 160px);
  padding-bottom: clamp(56px, 7.2vw, 132px);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
  gap: var(--gap-col);
  align-items: end;
}

.hero__eyebrow { margin-bottom: clamp(20px, 2.4vw, 44px); }

.hero__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: var(--display-hero);
  line-height: 0.98;
  letter-spacing: -0.015em;
  margin: 0 0 0.37em;
  text-wrap: pretty;
}

.hero__lead {
  font-size: var(--text-xl);
  line-height: 1.6;
  color: var(--cream-74);
  max-width: 58ch;
  text-wrap: pretty;
}

.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 2.8vw, 40px);
  margin-top: clamp(32px, 3.6vw, 66px);
  padding-top: clamp(22px, 2.1vw, 40px);
  border-top: 1px solid var(--cream-line);
  font-family: var(--font-mono);
  font-size: var(--mono-md);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--cream-50);
}

/* ---------- subscribe card + form ---------- */

.card {
  border: 1px solid rgba(250, 248, 244, 0.18);
  background: rgba(250, 248, 244, 0.035);
  padding: clamp(24px, 2.4vw, 44px);
}

.card__label {
  font-family: var(--font-mono);
  font-size: var(--mono-sm);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 16px;
}

.card__text {
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--cream-78);
  margin: 0 0 clamp(20px, 1.8vw, 34px);
}

.subscribe {
  display: grid;
  gap: 12px;
}

.subscribe__input {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(250, 248, 244, 0.34);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: var(--mono-input);
  padding: 0.85em 2px;
  outline: none;
}

.subscribe__input::placeholder { color: var(--cream-52); }

.subscribe__input:focus { border-bottom-color: var(--amber); }

.subscribe__button {
  width: 100%;
  border: 0;
  background: var(--amber);
  color: var(--navy);
  font-family: var(--font-mono);
  font-size: var(--mono-lg);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 1.4em 1em;
  cursor: pointer;
  transition: background 0.18s ease;
}

.subscribe__button:hover,
.subscribe__button:focus-visible { background: var(--cream); }

.subscribe__status {
  min-height: 1.7em;
  font-family: var(--font-mono);
  font-size: var(--mono-md);
  letter-spacing: 0.06em;
  color: var(--amber);
}

/* ---------- 01 the shift (timeline) ---------- */

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--ink-line);
}

.timeline__item {
  padding: 0 clamp(20px, 2.2vw, 40px);
  border-left: 1px solid var(--ink-line-soft);
}

.timeline__item:first-child {
  padding-left: 0;
  border-left: 0;
}

.timeline__item:last-child { padding-right: 0; }

.timeline__item--next {
  background: linear-gradient(to bottom, rgba(232, 163, 61, 0.14), rgba(232, 163, 61, 0));
}

.timeline__dot {
  width: 9px;
  height: 9px;
  background: var(--ink);
  margin-top: -5px;
}

.timeline__item--next .timeline__dot { background: var(--amber); }

.timeline__period {
  font-family: var(--font-mono);
  font-size: var(--mono-md);
  letter-spacing: 0.14em;
  color: var(--bronze);
  margin: clamp(18px, 1.8vw, 34px) 0 12px;
}

.timeline__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: var(--display-xs);
  line-height: 1.15;
  margin: 0 0 0.44em;
}

.timeline__text {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--ink-68);
}

/* ---------- 02 the stakes ---------- */

.stakes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(18, 50, 74, 0.16);
  border: 1px solid rgba(18, 50, 74, 0.16);
}

.stakes__panel {
  background: var(--cream);
  padding: clamp(28px, 3.2vw, 60px) clamp(24px, 3vw, 56px) clamp(32px, 3.5vw, 64px);
}

.stakes__panel--dark {
  background: var(--navy);
  color: var(--cream);
}

.stakes__label {
  font-family: var(--font-mono);
  font-size: var(--mono-md);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-55);
  margin-bottom: clamp(22px, 2vw, 38px);
}

.stakes__panel--dark .stakes__label { color: var(--amber); }

.stakes__list {
  display: grid;
  gap: clamp(18px, 1.5vw, 28px);
}

.stakes__item {
  font-size: var(--text-md);
  line-height: 1.55;
  color: var(--ink-82);
  padding-left: 22px;
  border-left: 1px solid rgba(18, 50, 74, 0.22);
}

.stakes__panel--dark .stakes__item {
  color: var(--cream-86);
  border-left-color: rgba(232, 163, 61, 0.55);
}

/* ---------- 03 the engagement (steps) ---------- */

.step {
  display: grid;
  grid-template-columns:
    clamp(72px, 8.3vw, 150px)
    minmax(0, 1.05fr)
    minmax(0, 1fr)
    clamp(140px, 15.3vw, 275px);
  gap: clamp(20px, 3.3vw, 60px);
  align-items: start;
  padding: clamp(28px, 2.9vw, 54px) 0;
  border-top: 1px solid var(--ink-line);
}

.step:last-child { border-bottom: 1px solid var(--ink-line); }

.step__number {
  font-family: var(--font-serif);
  font-size: var(--display-num);
  line-height: 1;
  color: var(--amber);
}

.step__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: var(--display-sm);
  line-height: 1.1;
  margin: 0 0 0.31em;
}

.step__text {
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--ink-68);
}

.step__output {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--ink-62);
}

.step__duration {
  font-family: var(--font-mono);
  font-size: var(--mono-md);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-48);
}

/* ---------- 04 founders ---------- */

.founders {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(32px, 3.9vw, 76px);
}

.founder {
  display: grid;
  gap: clamp(18px, 1.8vw, 34px);
}

.founder__photo {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--stone);
  border: 1px solid rgba(18, 50, 74, 0.16);
}

.founder__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 20%;
  filter: saturate(0.88);
}

.founder__name {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: var(--display-sm);
  line-height: 1.1;
  margin: 0 0 0.25em;
}

.founder__role {
  font-family: var(--font-mono);
  font-size: var(--mono-md);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bronze);
  margin-bottom: clamp(14px, 1.25vw, 24px);
}

.founder__bio {
  font-size: var(--text-base);
  line-height: 1.62;
  color: var(--ink-74);
  margin: 0 0 clamp(14px, 1.25vw, 24px);
  max-width: 64ch;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--mono-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tag {
  border: 1px solid var(--ink-border);
  padding: 0.6em 1em;
  color: var(--ink-66);
}

/* ---------- briefing ---------- */

.briefing {
  padding-top: clamp(64px, 8.3vw, 152px);
  padding-bottom: clamp(64px, 8.1vw, 148px);
}

.briefing__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: var(--gap-col);
  align-items: end;
}

.briefing__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: var(--display-lg);
  line-height: 1.04;
  letter-spacing: -0.012em;
  margin: 0 0 0.38em;
  text-wrap: pretty;
}

.briefing__text {
  font-size: var(--text-lg);
  line-height: 1.62;
  color: var(--cream-72);
  max-width: 52ch;
  text-wrap: pretty;
}

/* ---------- footer ---------- */

.site-footer {
  background: var(--navy);
  color: var(--cream-52);
  border-top: 1px solid rgba(250, 248, 244, 0.14);
  padding: clamp(26px, 2.4vw, 44px) var(--gutter) clamp(30px, 2.8vw, 52px);
}

.site-footer__inner {
  max-width: var(--content-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: clamp(14px, 1.7vw, 32px);
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: var(--mono-md);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-footer__brand {
  font-family: var(--font-serif);
  font-size: var(--brand-size-sm);
  letter-spacing: 0;
  text-transform: none;
  color: var(--cream);
}

/* ---------- responsive: structural changes only ----------
   Type and spacing already scale through the clamp() tokens above,
   so these rules only re-flow grids that cannot stay multi-column. */

@media (max-width: 1080px) {
  .timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .timeline__item { padding-bottom: clamp(28px, 4vw, 48px); }
  .timeline__item:nth-child(odd) { padding-left: 0; border-left: 0; }
  .timeline__item:last-child { padding-right: clamp(20px, 2.2vw, 40px); }

  .step {
    grid-template-columns: clamp(60px, 7vw, 100px) minmax(0, 1fr) minmax(0, 1fr);
    row-gap: 18px;
  }
  .step__duration { grid-column: 2 / -1; }
}

@media (max-width: 860px) {
  .hero__grid,
  .briefing__grid,
  .section__head,
  .founders { grid-template-columns: minmax(0, 1fr); gap: clamp(32px, 5vw, 48px); }

  .stakes { grid-template-columns: minmax(0, 1fr); }

  .step { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .step__duration { grid-column: auto; }

  /* one column: keep the portraits from filling the whole screen */
  .founder__photo { max-width: 440px; }
}

@media (max-width: 700px) {
  /* Row 1: brand + call to action. Row 2: the section links.
     display: contents lets both nav children join the header's flex row. */
  .site-header__inner {
    flex-wrap: wrap;
    padding-top: 10px;
    padding-bottom: 10px;
    gap: 10px 14px;
  }
  .site-header__actions { display: contents; }
  .nav {
    order: 3;
    width: 100%;
    gap: 18px;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .nav::-webkit-scrollbar { display: none; }
  .nav__link { white-space: nowrap; }
  .nav__link--cta { padding: 0.7em 1.2em; }
}

@media (max-width: 560px) {
  .timeline { grid-template-columns: minmax(0, 1fr); }
  .timeline__item,
  .timeline__item:last-child { padding: 0 0 32px; border-left: 0; }
  .hero__facts { gap: 14px; }
  /* 16px keeps iOS Safari from zooming in when the field gets focus */
  .subscribe__input { font-size: 16px; }
}

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