/* ==========================================================================
   KOIIA website
   ========================================================================== */

/* Tokens
   ========================================================================== */
:root {
  --bg: #0A1015;
  --bg-page: #05080B;
  --bg-footer: #070B0E;
  --surface: #111B22;
  --text: #F2F6F8;
  --text-soft: #C5D2DB;
  --text-muted: #7FA3B8;
  --accent: #DB4122;
  --accent-strong: #C9361A;
  --error: #FF8A70;
  --line: rgba(127, 163, 184, .16);
  --line-strong: rgba(127, 163, 184, .25);
  --line-field: rgba(127, 163, 184, .25);
  --line-chip: rgba(127, 163, 184, .3);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --container: 1280px;
  --gutter: 48px;
  --section-y: 112px;
  --page-hero-top: 120px;
  --page-hero-bottom: 72px;
  --hero-top: 96px;
  --hero-bottom: 88px;
  --footer-y: 56px;
  --gap-l: 72px;
  --gap-m: 40px;
  --box-pad: 48px;

  --fs-h1: clamp(64px, 8vw, 112px);
  --fs-h2: 56px;
  --fs-h3: 40px;
  --fs-cta: clamp(72px, 9vw, 128px);
  --fs-statement: 38px;
  --fs-lead: 23px;
  --fs-body: 18px;
  --fs-mail: 30px;
  --fs-year: 64px;
  --fs-ticker: 20px;

  --ease: cubic-bezier(.2, .7, .2, 1);
}

@media (max-width: 768px) {
  :root {
    --gutter: 20px;
    --section-y: 56px;
    --page-hero-top: 56px;
    --page-hero-bottom: 40px;
    --hero-top: 48px;
    --hero-bottom: 40px;
    --footer-y: 40px;
    --gap-l: 28px;
    --gap-m: 24px;
    --box-pad: 24px;

    --fs-h1: 52px;
    --fs-h2: 34px;
    --fs-h3: 28px;
    --fs-cta: 56px;
    --fs-statement: 24px;
    --fs-lead: 19px;
    --fs-body: 16px;
    --fs-mail: 20px;
    --fs-year: 44px;
    --fs-ticker: 16px;
  }
}

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

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
}

a {
  color: var(--accent);
}

a:hover {
  color: var(--text);
}

img {
  display: block;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* Typography
   ========================================================================== */
.eyebrow {
  font: 700 12px var(--font-mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.eyebrow--light {
  color: inherit;
}

.title-xl {
  font: 700 var(--fs-h1) / .95 var(--font-display);
  letter-spacing: -.04em;
}

.title-l {
  font: 700 var(--fs-h2) / 1.02 var(--font-display);
  letter-spacing: -.03em;
}

.title-m {
  font: 700 var(--fs-h3) / 1.08 var(--font-display);
  letter-spacing: -.02em;
}

.accent {
  color: var(--accent);
}

.muted {
  color: var(--text-muted);
}

.lead {
  font: 500 var(--fs-lead) / 1.5 var(--font-body);
}

.text {
  font: 400 var(--fs-body) / 1.65 var(--font-body);
  color: var(--text-soft);
}

/* Buttons and links
   ========================================================================== */
.btn {
  display: inline-block;
  font: 600 16px var(--font-body);
  text-decoration: none;
  color: #FFFFFF;
  padding: 15px 28px;
  border-radius: 999px;
  border: 0;
  cursor: pointer;
}

.btn--primary {
  background: var(--accent-strong);
}

.btn--primary:hover {
  background: var(--accent);
  color: #FFFFFF;
}

.btn--outline {
  padding: 14px 26px;
  border: 1px solid rgba(242, 246, 248, .35);
  background: transparent;
  color: var(--text);
}

.btn--outline:hover {
  border-color: var(--text);
  color: var(--text);
}

.btn--dark {
  background: var(--bg);
}

.btn--dark:hover {
  background: var(--surface);
  color: #FFFFFF;
}

.btn--outline-light {
  padding: 14px 26px;
  border: 1px solid rgba(255, 255, 255, .6);
  background: transparent;
}

.btn--outline-light:hover {
  border-color: #FFFFFF;
  color: #FFFFFF;
}

.link-arrow {
  font: 600 15px var(--font-body);
  text-decoration: none;
  color: var(--text);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 3px;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(10, 16, 21, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 16px;
}

.site-header__logo img {
  height: 40px;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  font: 500 15px var(--font-body);
  text-decoration: none;
  color: var(--text-soft);
  padding: 9px 16px;
  border-radius: 999px;
}

.site-nav a:hover {
  color: var(--text);
}

.site-nav a[aria-current="page"] {
  color: var(--text);
  background: var(--line);
}

.site-nav .site-nav__lang {
  padding: 9px 12px;
  font: 700 12px var(--font-mono);
  letter-spacing: .06em;
  color: var(--text-muted);
}

.site-nav .site-nav__cta {
  margin-left: 14px;
  padding: 11px 22px;
  font-weight: 600;
  color: #FFFFFF;
  background: var(--accent-strong);
}

.site-nav .site-nav__cta:hover {
  background: var(--accent);
  color: #FFFFFF;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-chip);
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font: 700 18px var(--font-body);
  cursor: pointer;
}

@media (max-width: 768px) {
  .site-header__inner {
    padding-block: 12px;
  }

  .site-header__logo img {
    height: 30px;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    flex-basis: 100%;
    order: 3;
    margin: 0 calc(var(--gutter) * -1) -12px;
    padding: 8px var(--gutter) 24px;
    background: var(--surface);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    display: flex;
    justify-content: space-between;
    padding: 16px 0;
    border-radius: 0;
    border-bottom: 1px solid var(--line);
    font: 700 26px var(--font-display);
    color: var(--text);
  }

  .site-nav .site-nav__lang {
    justify-content: flex-start;
    padding: 16px 0;
    font: 700 14px var(--font-mono);
  }

  .site-nav a:not(.site-nav__cta):not(.site-nav__lang)::after {
    content: '→';
    align-self: center;
    font: 500 18px var(--font-body);
    color: var(--text-muted);
  }

  .site-nav a[aria-current="page"] {
    background: transparent;
  }

  .site-nav .site-nav__cta {
    justify-content: center;
    margin: 20px 0 0;
    padding: 15px;
    border-bottom: 0;
    border-radius: 999px;
    font: 600 16px var(--font-body);
  }
}

/* Sections
   ========================================================================== */
.section {
  padding-block: var(--section-y);
}

.section--flush-top {
  padding-top: 0;
}

.section--surface {
  background: var(--surface);
  border-block: 1px solid var(--line);
}

.section--accent {
  background: var(--accent-strong);
  color: #FFFFFF;
}

.section--bordered {
  border-bottom: 1px solid var(--line);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: var(--gap-l);
}

.split--start {
  align-items: start;
}

.columns-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap-m);
}

@media (max-width: 768px) {
  .split,
  .columns-2 {
    grid-template-columns: 1fr;
  }
}

.page-hero {
  padding-block: var(--page-hero-top) var(--page-hero-bottom);
  border-bottom: 1px solid var(--line);
}

.page-hero .eyebrow {
  margin-bottom: 20px;
}

/* Home: hero
   ========================================================================== */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(127, 163, 184, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127, 163, 184, .09) 1px, transparent 1px);
  background-size: 64px 64px;
}

.hero__main {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: var(--gap-l);
  align-items: center;
  padding-block: var(--hero-top) var(--hero-bottom);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  padding: 8px 14px;
  border: 1px solid var(--line-chip);
  border-radius: 999px;
}

.hero__badge::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 99px;
  background: var(--accent);
}

.hero h1 {
  margin-bottom: 28px;
  text-wrap: balance;
}

.hero__lead {
  max-width: 580px;
  margin-bottom: 14px;
}

.hero__text {
  max-width: 560px;
  margin-bottom: 36px;
}

.hero__mark {
  position: relative;
  width: 100%;
  max-width: 480px;
  aspect-ratio: 1;
  justify-self: center;
}

.hero__mark > * {
  position: absolute;
}

.hero__ring {
  inset: 0;
  border: 1px solid rgba(127, 163, 184, .22);
  border-radius: 50%;
}

.hero__ring--dashed {
  inset: 12%;
  border-style: dashed;
  animation: spin-reverse 80s linear infinite;
}

.hero__logo {
  inset: 8%;
  width: 84%;
  height: 84%;
  animation: spin 120s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes spin-reverse {
  to { transform: rotate(-360deg); }
}

.ticker {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.ticker li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 22px var(--gutter);
  border-right: 1px solid var(--line);
  background: rgba(10, 16, 21, .7);
  font: 700 var(--fs-ticker) var(--font-display);
  letter-spacing: -.01em;
}

.ticker li::before {
  content: '';
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 99px;
  background: var(--accent);
}

@media (max-width: 768px) {
  .hero__main {
    grid-template-columns: 1fr;
  }

  .hero__mark {
    max-width: 300px;
  }

  .ticker {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ticker li {
    padding: 16px var(--gutter);
    border-bottom: 1px solid var(--line);
  }
}

/* Home: context, pillars, about
   ========================================================================== */
.statement {
  max-width: 1000px;
  margin: 24px 0 32px;
  font: 500 var(--fs-statement) / 1.3 var(--font-display);
  letter-spacing: -.015em;
  text-wrap: pretty;
}

.context-text {
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 28px;
}

.section-head .eyebrow {
  margin-bottom: 14px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  color: var(--text);
  text-decoration: none;
}

a.card:hover {
  border-color: var(--accent);
  color: var(--text);
}

.card--pillar {
  min-height: 320px;
}

.card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.card__title {
  font: 700 24px / 1.15 var(--font-display);
  letter-spacing: -.01em;
}

.card__icon {
  font: 500 18px var(--font-body);
  color: var(--text-muted);
}

.card__text {
  font: 400 15px / 1.6 var(--font-body);
  color: var(--text-soft);
}

@media (max-width: 768px) {
  .card-grid {
    grid-template-columns: 1fr;
  }

  .card--pillar {
    min-height: auto;
  }
}

.about__eyebrow {
  margin-bottom: 14px;
}

.about__title {
  margin-bottom: 24px;
}

.about__text {
  max-width: 520px;
  margin-bottom: 28px;
}

.timeline {
  margin: 0;
  padding: 0;
  list-style: none;
  border-bottom: 1px solid var(--line-strong);
}

.timeline li {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 20px;
  padding: 24px 0;
  border-top: 1px solid var(--line-strong);
}

.timeline__year {
  font: 700 var(--fs-year) / 1 var(--font-display);
  letter-spacing: -.03em;
}

.timeline p {
  font: 400 16px / 1.6 var(--font-body);
  color: var(--text-soft);
}

@media (max-width: 768px) {
  .timeline li {
    grid-template-columns: 1fr;
  }
}

/* Chi siamo
   ========================================================================== */
.story {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 880px;
  margin-top: 24px;
}

.story__lead {
  font: 500 var(--fs-lead) / 1.45 var(--font-display);
  color: var(--text);
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: var(--box-pad);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
}

.panel .lead {
  max-width: 980px;
}

.mission__title {
  margin-top: 14px;
}

/* Formazione
   ========================================================================== */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.chip {
  padding: 8px 14px;
  border: 1px solid var(--line-chip);
  border-radius: 999px;
  background: transparent;
  color: var(--text-soft);
  font: 700 12px var(--font-mono);
  letter-spacing: .04em;
}

.course {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.callout {
  padding: var(--box-pad);
  border: 1px solid var(--accent);
  border-radius: 20px;
  font: 500 var(--fs-lead) / 1.45 var(--font-display);
}

/* Contatti
   ========================================================================== */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card--info {
  gap: 10px;
}

.card__value {
  font: 700 var(--fs-mail) var(--font-display);
  word-break: break-all;
}

.card__value--text {
  font: 500 20px / 1.4 var(--font-body);
  word-break: normal;
}

.contact-lead {
  margin-bottom: 28px;
}

/* Call to action
   ========================================================================== */
.cta {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: var(--gap-l);
  align-items: end;
}

.cta__title {
  font: 700 var(--fs-cta) / .95 var(--font-display);
  letter-spacing: -.04em;
}

.cta__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
}

.cta__text {
  max-width: 520px;
  font: 400 var(--fs-body) / 1.6 var(--font-body);
}

@media (max-width: 768px) {
  .cta {
    grid-template-columns: 1fr;
  }
}

/* Footer
   ========================================================================== */
.site-footer {
  background: var(--bg-footer);
  color: var(--text-soft);
  font: 400 14px / 1.6 var(--font-body);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: var(--gap-m);
  padding-block: var(--footer-y);
}

.site-footer img {
  height: 40px;
  width: auto;
  margin-bottom: 18px;
}

.site-footer__about {
  max-width: 340px;
}

.site-footer .eyebrow {
  margin-bottom: 10px;
  font-size: 11px;
}

.site-footer a {
  color: var(--text);
}

@media (max-width: 768px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
  }
}

/* Reveal on scroll (enabled by js/main.js)
   ========================================================================== */
@media (prefers-reduced-motion: no-preference) {
  .js [data-reveal] {
    opacity: 0;
    filter: blur(12px);
    transform: translateY(32px);
    transition:
      opacity 1s var(--ease) var(--reveal-delay, 0ms),
      transform 1s var(--ease) var(--reveal-delay, 0ms),
      filter 1s var(--ease) var(--reveal-delay, 0ms);
  }

  .js [data-reveal="scale"] {
    transform: scale(.92);
  }

  .js [data-reveal].is-visible {
    opacity: 1;
    filter: none;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__ring--dashed,
  .hero__logo {
    animation: none;
  }
}