/* ============================================================
   Aizotech — design system
   Palette: light green / white / a little black
   ============================================================ */
:root {
  --green-100: #EAFBEF;   /* whisper mint */
  --green-200: #C9F4D6;   /* light green wash */
  --green-300: #9FEDB8;   /* light green */
  --green-400: #7EE7A0;   /* primary light green */
  --green-500: #3ECF74;   /* deeper accent for contrast */
  --logo-green: #3CCD2E;  /* vivid lime from the AizoTech logo */
  --white: #FFFFFF;
  --off-white: #F7FCF8;
  --black: #0A0F0C;       /* near-black, green-tinted */
  --ink-60: rgba(10, 15, 12, 0.62);
  --ink-30: rgba(10, 15, 12, 0.30);
  --ink-10: rgba(10, 15, 12, 0.10);

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  --radius: 22px;
  --pad-x: clamp(20px, 5vw, 80px);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  font-family: var(--font-body);
  color: var(--black);
  background: var(--off-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--green-400); color: var(--black); }

/* ============ Neural background canvas ============ */
.bg-canvas {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
}
main, .footer { position: relative; z-index: 1; }

/* ============ Brand logo (image) ============ */
.logo-img { display: block; height: 52px; width: auto; }
.logo-img--dark { display: none; }

h1, h2, h3 { font-family: var(--font-display); line-height: 1.05; letter-spacing: -0.02em; }
a { color: inherit; text-decoration: none; }
em { font-style: normal; }

/* ============ Preloader ============ */
.preloader {
  position: fixed; inset: 0; z-index: 100;
  /* pure black so the logo image's opaque background disappears */
  background: #000;
  display: flex; align-items: center; justify-content: center;
}
.preloader__logo {
  height: clamp(70px, 12vw, 110px); width: auto;
  animation: logoPulse 1.1s ease-in-out infinite alternate;
}
@keyframes logoPulse { from { transform: scale(0.96); opacity: 0.75; } to { transform: scale(1.04); opacity: 1; } }

/* ============ Nav ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px var(--pad-x);
  transition: background 0.35s ease, box-shadow 0.35s ease, padding 0.35s ease;
}
.nav--scrolled {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--ink-10);
  padding-top: 12px; padding-bottom: 12px;
}
.nav__logo { display: inline-block; }
.nav__links { display: flex; align-items: center; gap: clamp(18px, 3vw, 38px); font-weight: 500; font-size: 15px; }
.nav__links a:not(.nav__cta) { position: relative; padding: 4px 0; }
.nav__links a:not(.nav__cta)::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 2px; background: var(--green-500);
  transform: scaleX(0); transform-origin: right;
  transition: transform 0.35s var(--ease-out);
}
.nav__links a:not(.nav__cta):hover::after { transform: scaleX(1); transform-origin: left; }
.nav__cta {
  background: var(--black); color: var(--white);
  padding: 10px 22px; border-radius: 999px;
  transition: background 0.3s ease, color 0.3s ease, transform 0.3s var(--ease-out);
}
.nav__cta:hover { background: var(--green-400); color: var(--black); transform: translateY(-2px); }
.nav__burger { display: none; }

/* ============ Buttons ============ */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 600; font-size: 16px;
  padding: 16px 30px; border-radius: 999px;
  transition: transform 0.35s var(--ease-out), background 0.3s ease, color 0.3s ease, box-shadow 0.35s ease;
}
.btn__arrow { transition: transform 0.35s var(--ease-out); }
.btn:hover .btn__arrow { transform: translateX(5px); }
.btn--dark { background: var(--black); color: var(--white); }
.btn--dark:hover { background: var(--green-500); color: var(--black); transform: translateY(-3px); box-shadow: 0 14px 30px rgba(62, 207, 116, 0.35); }
.btn--ghost { border: 1.5px solid var(--ink-30); color: var(--black); background: transparent; }
.btn--ghost:hover { border-color: var(--black); transform: translateY(-3px); }
.btn--green { background: var(--green-400); color: var(--black); }
.btn--green:hover { background: var(--white); transform: translateY(-3px); box-shadow: 0 14px 34px rgba(10, 15, 12, 0.25); }
.btn--lg { font-size: clamp(16px, 2.4vw, 22px); padding: 20px 38px; }

/* ============ Hero ============ */
.hero {
  position: relative; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 120px var(--pad-x) 80px;
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; pointer-events: none;
  width: 60vw; height: 60vw; max-width: 820px; max-height: 820px;
  left: -12%; top: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(126, 231, 160, 0.20), transparent 65%);
}
.hero__content { position: relative; z-index: 1; max-width: 1100px; }
.hero__eyebrow {
  font-size: 13px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-60); margin-bottom: 26px;
  display: inline-block; padding: 9px 18px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.7); border: 1px solid var(--green-200);
  backdrop-filter: blur(6px);
}
.hero__title {
  font-size: clamp(52px, 11vw, 148px);
  font-weight: 700; margin-bottom: 30px;
}
.hero__line { display: block; overflow: hidden; padding-bottom: 0.08em; margin-bottom: -0.08em; }
.hero__title-accent { color: var(--logo-green); }
.hero__title-accent .char {
  background: linear-gradient(92deg, var(--logo-green) 10%, #27A85A 90%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero__sub { max-width: 520px; font-size: clamp(16px, 2vw, 19px); color: var(--ink-60); margin-bottom: 40px; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero__visual {
  /* centered via auto margins (no transform) so GSAP can own x/y */
  position: absolute; right: 2vw; top: 0; bottom: 0; margin: auto 0;
  width: clamp(280px, 34vw, 560px); height: clamp(280px, 34vw, 560px);
  pointer-events: none; z-index: 0;
}
.hero__orb {
  width: 100%; height: 100%; object-fit: contain;
  filter: drop-shadow(0 30px 60px rgba(10, 15, 12, 0.18));
  animation: orbSpin 60s linear infinite;
  will-change: transform;
}
@keyframes orbSpin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.hero__scroll-hint {
  position: absolute; bottom: 26px; left: var(--pad-x); z-index: 1;
  display: flex; align-items: center; gap: 10px;
  font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-60);
}
.hero__scroll-hint span {
  width: 1px; height: 44px; background: var(--ink-30);
  display: inline-block; position: relative; overflow: hidden;
}
.hero__scroll-hint span::after {
  content: ""; position: absolute; left: 0; top: -50%;
  width: 100%; height: 50%; background: var(--green-500);
  animation: scrollLine 1.6s ease-in-out infinite;
}
@keyframes scrollLine { 0% { top: -50%; } 100% { top: 110%; } }

/* split chars (set by JS) */
.char { display: inline-block; will-change: transform; }

/* ============ Marquee ============ */
.marquee {
  background: transparent; color: var(--black);
  overflow: hidden; padding: 18px 0;
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(15px, 2vw, 20px); white-space: nowrap;
  border-top: 1px solid var(--green-200);
  border-bottom: 1px solid var(--green-200);
  position: relative; z-index: 2;
}
.marquee__track { display: inline-flex; will-change: transform; }
.marquee__track span { padding-right: 8px; }

/* ============ Sections (shared) ============ */
.section { padding: clamp(90px, 12vw, 160px) var(--pad-x); }
.section__head { margin-bottom: clamp(48px, 7vw, 90px); }
.section__label {
  font-size: 13px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--green-500); margin-bottom: 18px;
}
.section__label--light { color: var(--green-400); }
.section__title { font-size: clamp(36px, 6.5vw, 76px); font-weight: 700; }
.section__title em { color: var(--green-500); }
.section__title--light { color: var(--white); }
.section__title--light em { color: var(--green-400); }
.section--dark { background: var(--black); }

/* ============ Manifesto ============ */
.manifesto {
  /* whisper of green→blue instead of flat white; slightly translucent
     so the neuron field glows through */
  background: linear-gradient(160deg, rgba(234, 251, 239, 0.88), rgba(235, 244, 255, 0.82));
}
.manifesto__text {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(26px, 4.6vw, 54px); line-height: 1.25; letter-spacing: -0.015em;
  max-width: 1150px;
}
.manifesto__text .word { opacity: 0.14; transition: opacity 0.4s ease; }
.manifesto__text .word.is-on { opacity: 1; }

/* ============ Services ============ */
.services__grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: clamp(16px, 2.4vw, 28px);
}
.service-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--green-200);
  border-radius: var(--radius);
  padding: clamp(28px, 4vw, 48px);
  overflow: hidden;
  transition: transform 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out), border-color 0.3s ease;
}
.service-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 0%), var(--green-100), transparent 60%);
  opacity: 0; transition: opacity 0.4s ease;
}
.service-card:hover { transform: translateY(-8px); box-shadow: 0 24px 50px rgba(10, 15, 12, 0.09); border-color: var(--green-400); }
.service-card:hover::before { opacity: 1; }
.service-card > * { position: relative; }
.service-card__head {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 36px;
}
.service-card__icon {
  width: 64px; height: 64px; object-fit: contain;
  /* transform is animated by anime.js (spring wobble) — no CSS transition */
}
.service-card__num {
  font-family: var(--font-display); font-weight: 700; font-size: 15px;
  color: var(--green-500);
  display: inline-block;
  padding: 6px 14px; border-radius: 999px; background: var(--green-100);
}
.service-card h3 { font-size: clamp(22px, 2.6vw, 30px); margin-bottom: 14px; }
.service-card p { color: var(--ink-60); font-size: 16px; margin-bottom: 26px; }
.service-card__tag { font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-30); }

/* ============ Tech stack marquee ============ */
.tech { margin-top: clamp(56px, 8vw, 100px); }
.tech__label {
  text-align: center; font-size: 13px; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-30);
  margin-bottom: 30px;
}
.tech__marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.tech__track { display: inline-flex; align-items: center; gap: clamp(36px, 5vw, 70px); will-change: transform; padding-right: clamp(36px, 5vw, 70px); }
.tech__track img {
  height: 44px; width: auto;
  filter: grayscale(1) opacity(0.55);
  transition: filter 0.3s ease;
}
.tech__track img:hover { filter: none; }

/* ============ Programs ============ */
.programs__list { border-top: 1px solid rgba(255, 255, 255, 0.14); }
.program-row {
  display: grid;
  grid-template-columns: 70px 1fr auto 50px;
  align-items: center; gap: clamp(14px, 3vw, 40px);
  padding: clamp(24px, 3.4vw, 42px) 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--white);
  transition: background 0.35s ease, padding-left 0.35s var(--ease-out);
}
.program-row:hover { background: rgba(126, 231, 160, 0.07); padding-left: 22px; }
.program-row__index { font-family: var(--font-display); font-size: 14px; color: var(--green-400); }
.program-row__name { font-family: var(--font-display); font-weight: 600; font-size: clamp(20px, 3.4vw, 38px); letter-spacing: -0.01em; }
.program-row__meta { font-size: 14px; color: rgba(255, 255, 255, 0.55); white-space: nowrap; }
.program-row__arrow {
  font-size: 24px; color: var(--green-400);
  transform: translateX(-8px); opacity: 0;
  transition: transform 0.35s var(--ease-out), opacity 0.35s ease;
}
.program-row:hover .program-row__arrow { transform: translateX(0); opacity: 1; }

/* light variant (training programs on white) */
.programs--light {
  background: linear-gradient(160deg, rgba(236, 249, 255, 0.82), rgba(234, 251, 239, 0.88));
}
.programs--light .programs__list { border-top-color: var(--ink-10); }
.programs--light .program-row { color: var(--black); border-bottom-color: var(--ink-10); }
.programs--light .program-row:hover { background: var(--green-100); }
.programs--light .program-row__index { color: var(--green-500); }
.programs--light .program-row__meta { color: var(--ink-60); }
.programs--light .program-row__arrow { color: var(--green-500); }

/* ============ Impact ============ */
.impact {
  background: linear-gradient(200deg, rgba(238, 247, 255, 0.8), rgba(234, 251, 239, 0.88));
}
.impact__grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: clamp(20px, 3vw, 36px);
  margin-bottom: clamp(60px, 9vw, 110px);
}
.stat {
  border-top: 2px solid var(--green-400);
  padding-top: 22px;
}
.stat__value {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(40px, 5.6vw, 72px); letter-spacing: -0.03em;
  display: block; margin-bottom: 6px;
}
.stat__label { color: var(--ink-60); font-size: 15px; }
.quote {
  max-width: 880px; margin: 0 auto; text-align: center;
  background: var(--green-100); border-radius: var(--radius);
  padding: clamp(36px, 5.5vw, 70px);
}
.quote blockquote {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(20px, 3vw, 32px); line-height: 1.35; letter-spacing: -0.01em;
  margin-bottom: 22px;
}
.quote figcaption { color: var(--ink-60); font-size: 15px; }

/* ============ CTA ============ */
.cta { padding-top: 0; }
.cta__card {
  background: var(--black); color: var(--white);
  border-radius: clamp(24px, 4vw, 44px);
  padding: clamp(56px, 9vw, 130px) clamp(28px, 6vw, 100px);
  text-align: center;
  position: relative; overflow: hidden;
}
.cta__card::before {
  content: ""; position: absolute;
  width: 70vw; height: 70vw; max-width: 900px; max-height: 900px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(126, 231, 160, 0.22), transparent 65%);
  top: -35%; right: -20%;
  pointer-events: none;
}
.cta__title { font-size: clamp(38px, 7vw, 90px); font-weight: 700; margin-bottom: 22px; position: relative; }
.cta__title em { color: var(--green-400); }
.cta__sub { color: rgba(255, 255, 255, 0.65); font-size: clamp(15px, 2vw, 19px); margin-bottom: 44px; position: relative; }
.cta .btn { position: relative; }
.cta__actions {
  display: flex; gap: 16px; justify-content: center; align-items: center;
  flex-wrap: wrap; position: relative;
}
.btn--whatsapp {
  background: transparent; color: var(--white);
  border: 1.5px solid rgba(255, 255, 255, 0.35);
}
.btn--whatsapp:hover {
  background: #25D366; border-color: #25D366; color: var(--black);
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(37, 211, 102, 0.35);
}
.cta__contact {
  margin-top: 30px; position: relative;
  color: rgba(255, 255, 255, 0.55); font-size: 14px;
}
.cta__contact a { transition: color 0.25s ease; }
.cta__contact a:hover { color: var(--green-400); }
.footer__bottom a:hover { color: var(--green-500); }

/* ============ Footer ============ */
.footer { padding: 50px var(--pad-x) 36px; }
.footer__top {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 20px;
  padding-bottom: 28px; margin-bottom: 24px;
  border-bottom: 1px solid var(--ink-10);
}
.footer__logo {
  font-family: var(--font-display); font-weight: 700; font-size: 20px;
  display: inline-flex; align-items: center; gap: 8px;
}
.footer__links { display: flex; gap: 26px; font-size: 14px; font-weight: 500; }
.footer__links a:hover { color: var(--green-500); }
.footer__bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  font-size: 13px; color: var(--ink-60);
}

/* ============ Reveal helpers (JS sets initial state) ============ */
.js [data-reveal], .js [data-card], .js [data-stat] { opacity: 0; }

/* ============ Mobile ============ */
@media (max-width: 860px) {
  /* backdrop-filter would make .nav the containing block for the
     fixed-position menu panel, so it must stay off on mobile */
  .nav--scrolled {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(255, 255, 255, 0.94);
  }
  .services__grid { grid-template-columns: 1fr; }
  .hero__visual {
    width: 62vw; height: 62vw;
    top: 6%; bottom: auto; right: -14vw; margin: 0;
    opacity: 0.55;
  }
  .tech__track img { height: 34px; }
  .impact__grid { grid-template-columns: repeat(2, 1fr); }
  .program-row { grid-template-columns: 44px 1fr 36px; }
  .program-row__index { grid-column: 1; grid-row: 1; }
  .program-row__name { grid-column: 2; grid-row: 1; }
  .program-row__meta { grid-column: 2; grid-row: 2; }
  .program-row__arrow { grid-column: 3; grid-row: 1 / span 2; opacity: 1; transform: none; }

  .nav__links {
    position: fixed; inset: 0;
    /* pure black to match the dark logo image's opaque background */
    background: #000; color: var(--white);
    flex-direction: column; justify-content: center;
    gap: 34px; font-size: 26px; font-family: var(--font-display);
    transform: translateY(-100%);
    transition: transform 0.5s var(--ease-out);
    z-index: -1;
  }
  .nav--open .nav__links { transform: translateY(0); }
  .nav__links .nav__cta { background: var(--green-400); color: var(--black); }
  .nav--open { background: transparent; box-shadow: none; }
  .nav--open .logo-img--green { display: none; }
  .nav--open .logo-img--dark { display: block; }
  .nav__burger {
    display: flex; flex-direction: column; gap: 6px;
    background: none; border: none; cursor: pointer; padding: 8px;
    z-index: 2;
  }
  .nav__burger span {
    width: 26px; height: 2px; background: currentColor;
    transition: transform 0.35s var(--ease-out);
    display: block;
  }
  .nav--open .nav__burger { color: var(--white); }
  .nav--open .nav__burger span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
  .nav--open .nav__burger span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }
}

@media (max-width: 520px) {
  .impact__grid { grid-template-columns: 1fr 1fr; gap: 28px 18px; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .footer__top, .footer__bottom { flex-direction: column; align-items: flex-start; }
}

/* ============ Reduced motion ============ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .js [data-reveal], .js [data-card], .js [data-stat] { opacity: 1; }
}