/* =========================================================
   GoldRock Industries — Dark + Green theme
   ========================================================= */

:root {
  /* Surfaces (light base — professional/minimal, mirrors root --pc-* homepage) */
  --bg: #f4f8f9;
  /* page base (mist) */
  --bg-2: #ffffff;
  /* alternating light bands */
  --surface: #ffffff;
  /* cards */
  --surface-2: #eef3f4;
  /* subtle fills (bar tracks etc.) */
  --border: #e3eaec;
  /* hairline border */
  --border-2: #cdd9db;
  /* stronger border */

  /* Accent — GoldRock brand (root theme 06 coral).
     Names kept as --green* so every existing usage adopts the brand accent. */
  --green: #ff6f5e;
  --green-bright: #ff8c7d;
  --green-600: #e0563b;
  --green-soft: rgba(255, 111, 94, 0.10);
  --green-glow: rgba(255, 111, 94, 0.30);

  /* Gold — sparing "value" emphasis (readable on light) */
  --gold: #c79a3b;

  /* Text (dark ink on light) */
  --text: #15242a;
  --muted: #5b6b6e;
  --muted-2: #8b9a9c;

  /* Dark-section palette (petrol — hero / emphasis bands / footer) */
  --dark: #082226;
  --dark-2: #103a40;

  /* Type — GoldRock brand fonts (Sora headings, Inter body) */
  --font-head: "Sora", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;

  /* Layout */
  --container: 1180px;
  --radius: 16px;
  --radius-sm: 10px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* =========================================================
   Light / dark section system — light base with dark emphasis bands.
   Dark sections re-scope tokens so child components adapt automatically.
   ========================================================= */
.hero,
.subhero,
.capital,
.footer,
.is-dark {
  --text: #eef4f1;
  --muted: #a9bcbb;
  --muted-2: #7e9594;
  --surface: rgba(255, 255, 255, 0.05);
  --surface-2: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.10);
  --border-2: rgba(255, 255, 255, 0.18);
  --green-soft: rgba(255, 111, 94, 0.16);
  color: var(--text);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--green);
  color: #ffffff;
  padding: 10px 18px;
  border-radius: 0 0 8px 0;
  z-index: 200;
  font-weight: 600;
}

.skip-link:focus {
  left: 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    background 0.25s var(--ease), border-color 0.25s var(--ease);
  white-space: nowrap;
}

.btn--lg {
  padding: 15px 28px;
  font-size: 1rem;
}

.btn--primary {
  background: linear-gradient(135deg, var(--green-bright), var(--green-600));
  color: #ffffff;
  box-shadow: 0 8px 26px -10px var(--green-glow);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px -10px var(--green-glow);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--border-2);
  color: var(--text);
}

.btn--ghost:hover {
  border-color: var(--green);
  color: var(--green);
  transform: translateY(-2px);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: #ffffff;
  transition: box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
  border-bottom: 1px solid var(--border);
}

.nav.is-scrolled {
  background: #ffffff;
  box-shadow: 0 8px 28px -20px rgba(8, 34, 38, 0.45);
  border-bottom-color: var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-head);
}

.brand__mark {
  color: var(--green);
  display: flex;
}

.brand__text {
  font-weight: 700;
  font-size: 1.18rem;
  letter-spacing: -0.01em;
}

.brand__sub {
  color: var(--muted);
  font-weight: 500;
}

.brand__logo {
  height: 30px;
  width: auto;
  display: block;
}

.footer__logo {
  height: 30px;
  width: auto;
  display: block;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav__link {
  position: relative;
  font-size: 0.93rem;
  color: var(--muted);
  font-weight: 500;
  transition: color 0.2s;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -7px;
  width: 0;
  height: 2px;
  background: var(--green);
  transition: width 0.28s var(--ease);
  border-radius: 2px;
}

.nav__link:hover {
  color: var(--text);
}

.nav__link.is-active {
  color: var(--text);
}

.nav__link.is-active::after {
  width: 100%;
}

.nav__cta {
  margin-left: 6px;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}

.nav__toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s;
}

.nav.is-open .nav__toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav.is-open .nav__toggle span:nth-child(2) {
  opacity: 0;
}

.nav.is-open .nav__toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: radial-gradient(120% 80% at 70% 10%, #0e2b2f 0%, var(--dark) 58%);
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(70% 60% at 60% 40%, #000 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(70% 60% at 60% 40%, #000 0%, transparent 80%);
  opacity: 0.5;
}

.hero__glow {
  position: absolute;
  width: 620px;
  height: 620px;
  right: -120px;
  top: -120px;
  background: radial-gradient(circle, var(--green-glow), transparent 65%);
  filter: blur(30px);
  opacity: 0.55;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 2;
  padding: 120px 24px 80px;
  max-width: 920px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--green);
  background: var(--green-soft);
  border: 1px solid rgba(255, 111, 94, 0.25);
  padding: 7px 15px;
  border-radius: 999px;
  margin-bottom: 26px;
}

.eyebrow__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0 var(--green-glow);
  animation: pulse 2.4s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 var(--green-glow);
  }

  70% {
    box-shadow: 0 0 0 10px transparent;
  }

  100% {
    box-shadow: 0 0 0 0 transparent;
  }
}

.hero__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero__sub {
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  color: var(--muted);
  max-width: 640px;
  margin-bottom: 38px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero__scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 2px solid var(--border-2);
  border-radius: 14px;
  z-index: 2;
  display: flex;
  justify-content: center;
}

.hero__scroll span {
  width: 4px;
  height: 8px;
  background: var(--green);
  border-radius: 2px;
  margin-top: 7px;
  animation: scrolldot 1.8s infinite;
}

@keyframes scrolldot {
  0% {
    opacity: 0;
    transform: translateY(-4px);
  }

  40% {
    opacity: 1;
  }

  80%,
  100% {
    opacity: 0;
    transform: translateY(12px);
  }
}

/* ---------- Metrics ---------- */
.metrics {
  background: var(--bg-2);
  border-block: 1px solid var(--border);
}

.metrics__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 54px 24px;
}

.metric {
  text-align: center;
}

.metric__num {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(2.2rem, 4vw, 3rem);
  color: var(--green);
  letter-spacing: -0.02em;
  line-height: 1;
}

.metric__label {
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 10px;
}

/* ---------- Sections (shared) ---------- */
.section {
  padding: 110px 0;
  position: relative;
}

.section__head {
  max-width: 720px;
  margin-bottom: 56px;
}

.section__tag {
  display: inline-block;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 16px;
}

.section__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.section__intro {
  color: var(--muted);
  font-size: 1.08rem;
  margin-top: 18px;
}

/* ---------- Challenge ---------- */
.challenge {
  background: var(--bg);
}

.challenge__split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  margin-bottom: 26px;
}

.challenge__card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  transition: transform 0.3s var(--ease), border-color 0.3s;
}

.challenge__card:hover {
  transform: translateY(-4px);
}

.challenge__card--old {
  opacity: 0.92;
}

.challenge__card--new {
  border-color: rgba(255, 111, 94, 0.28);
  background: linear-gradient(180deg, rgba(255, 111, 94, 0.05), var(--surface));
}

.challenge__badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted-2);
  border: 1px solid var(--border-2);
  border-radius: 999px;
  padding: 5px 13px;
  margin-bottom: 20px;
}

.challenge__badge--accent {
  color: var(--green);
  border-color: rgba(255, 111, 94, 0.4);
}

.challenge__lead {
  color: var(--text);
  opacity: 0.9;
  margin-bottom: 22px;
}

.challenge__list li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 11px;
  color: var(--muted);
  font-size: 0.96rem;
}

.challenge__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--muted-2);
  transform: rotate(45deg);
}

.challenge__list--accent li::before {
  background: var(--green);
}

.challenge__statements {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.statement {
  padding: 32px;
  border-right: 1px solid var(--border);
}

.statement:last-child {
  border-right: 0;
}

.statement__key {
  display: block;
  font-family: var(--font-head);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted-2);
  margin-bottom: 12px;
}

.statement p {
  color: var(--muted);
}

.statement--solution {
  background: linear-gradient(135deg, var(--green-600), var(--green));
}

.statement--solution .statement__key {
  color: rgba(255, 255, 255, 0.78);
}

.statement--solution p {
  color: #ffffff;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1.2;
}

/* ---------- Technology ---------- */
.technology {
  background: var(--bg-2);
}

.tech__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 111, 94, 0.3);
  box-shadow: 0 24px 50px -28px var(--green-glow);
}

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-soft);
  color: var(--green);
  border: 1px solid rgba(255, 111, 94, 0.22);
  margin-bottom: 22px;
}

.card__icon svg {
  width: 28px;
  height: 28px;
}

.card__title {
  font-family: var(--font-head);
  font-size: 1.28rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.card__text {
  color: var(--muted);
  font-size: 0.97rem;
}

/* Pipeline */
.pipeline {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
}

.pipeline__step {
  flex: 1;
  min-width: 150px;
  display: flex;
  flex-direction: column;
  padding: 8px 16px;
}

.pipeline__num {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--green);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.pipeline__label {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.1rem;
}

.pipeline__desc {
  color: var(--muted);
  font-size: 0.88rem;
  margin-top: 4px;
}

.pipeline__arrow {
  align-self: center;
  width: 28px;
  height: 2px;
  background: var(--border-2);
  position: relative;
  flex: 0 0 auto;
}

.pipeline__arrow::after {
  content: "";
  position: absolute;
  right: 0;
  top: -3px;
  border: 4px solid transparent;
  border-left-color: var(--border-2);
}

/* ---------- Business Model ---------- */
.model {
  background: var(--bg);
}

.model__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 26px;
  align-items: stretch;
}

.pathway {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s var(--ease);
}

.pathway:hover {
  transform: translateY(-4px);
}

.pathway--accent {
  background:
    radial-gradient(120% 120% at 100% 0%, rgba(255, 111, 94, 0.12), transparent 55%),
    var(--surface);
  border-color: rgba(255, 111, 94, 0.3);
}

.pathway__index {
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 14px;
}

.pathway__title {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.pathway__text {
  color: var(--muted);
  margin-bottom: 20px;
}

.pathway__perks {
  margin-bottom: 24px;
  display: grid;
  gap: 12px;
}

.pathway__perks li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 500;
}

.pathway__perks svg {
  color: var(--green);
  flex: 0 0 auto;
}

.pathway__tag {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  border: 1px dashed var(--border-2);
  padding: 8px 15px;
  border-radius: 999px;
}

.pathway__tag--accent {
  color: var(--green);
  border-color: rgba(255, 111, 94, 0.45);
  border-style: solid;
}

/* ---------- Capital ---------- */
.capital {
  background: var(--dark);
}

.capital__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.bars {
  margin-top: 38px;
  display: grid;
  gap: 26px;
}

.bar__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
  font-family: var(--font-head);
  font-weight: 600;
}

.bar__head small {
  color: var(--muted-2);
  font-weight: 400;
  font-family: var(--font-body);
}

.bar__pct {
  color: var(--green);
}

.bar__track {
  height: 14px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.bar__fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--green-600), var(--green-bright));
  transition: width 1.4s var(--ease);
}

.bar__fill--muted {
  background: linear-gradient(90deg, #33484c, #56686b);
}

.capital__right {
  display: grid;
  gap: 16px;
}

.alloc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px 24px;
  transition: transform 0.25s var(--ease);
}

.alloc:hover {
  transform: translateX(5px);
}

.alloc__title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.alloc p {
  color: var(--muted);
  font-size: 0.94rem;
}

/* ---------- Contact ---------- */
.contact {
  background: var(--bg);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

.contact__channels {
  margin-top: 34px;
  display: grid;
  gap: 20px;
}

.contact__channels li {
  border-top: 1px solid var(--border);
  padding-top: 18px;
}

.contact__role {
  display: block;
  font-family: var(--font-head);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted-2);
  margin-bottom: 5px;
}

.contact__channels a {
  color: var(--green);
  font-weight: 500;
  transition: opacity 0.2s;
}

.contact__channels a:hover {
  opacity: 0.78;
}

.form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form__field {
  display: block;
  margin-bottom: 18px;
}

.form__field span {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 8px;
}

.form__field input,
.form__field textarea {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  padding: 13px 15px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.97rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  resize: vertical;
}

.form__field input::placeholder,
.form__field textarea::placeholder {
  color: var(--muted-2);
}

.form__field input:focus,
.form__field textarea:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-soft);
}

.form__field.is-error input,
.form__field.is-error textarea {
  border-color: #e0524d;
}

.form__submit {
  width: 100%;
  justify-content: center;
  margin-top: 4px;
}

.form__status {
  margin-top: 14px;
  font-size: 0.92rem;
  min-height: 1.2em;
}

.form__status.is-success {
  color: var(--green);
}

.form__status.is-error {
  color: #e0734d;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--dark);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 38px 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 600;
}

.footer__brand .brand__mark {
  color: var(--green);
}

.footer__copy {
  color: var(--muted-2);
  font-size: 0.9rem;
}

.footer__links {
  display: flex;
  gap: 22px;
}

.footer__links a {
  color: var(--muted);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer__links a:hover {
  color: var(--green);
}

/* ---------- Reveal animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {

  .capital__inner,
  .contact__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .model__grid {
    grid-template-columns: 1fr;
  }

  .tech__grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Nav collapses to the hamburger menu below 1150px (full logo lockup needs the room) */
@media (max-width: 1150px) {
  .nav__toggle {
    display: flex;
  }

  .nav__links {
    position: fixed;
    inset: 76px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #ffffff;
    box-shadow: 0 16px 40px -24px rgba(8, 34, 38, 0.5);
    border-bottom: 1px solid var(--border);
    padding: 14px 24px 26px;
    transform: translateY(-130%);
    transition: transform 0.4s var(--ease);
    max-height: calc(100vh - 76px);
    overflow-y: auto;
  }

  .nav.is-open .nav__links {
    transform: translateY(0);
  }

  .nav__link {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
  }

  .nav__link::after {
    display: none;
  }

  .nav__cta {
    margin: 16px 0 0;
    justify-content: center;
  }
}

@media (max-width: 820px) {
  .metrics__grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px 24px;
  }

  .challenge__split {
    grid-template-columns: 1fr;
  }

  .challenge__statements {
    grid-template-columns: 1fr;
  }

  .statement {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .statement:last-child {
    border-bottom: 0;
  }

  .form__row {
    grid-template-columns: 1fr;
  }

  .pipeline__arrow {
    transform: rotate(90deg);
  }

  .lang-switch {
    margin: 16px 0 0;
    justify-content: center;
  }
}

/* ---------- Contact form validation error state ---------- */
input.err_input,
textarea.err_input,
.form__field input.err_input,
.form__field textarea.err_input {
  border-color: #e0524d !important;
  box-shadow: 0 0 0 3px rgba(224, 82, 77, 0.18);
}

/* ---------- Language switcher ---------- */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 10px;
}

.lang-link {
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted-2);
  cursor: pointer;
  transition: color 0.2s;
}

.lang-link:hover {
  color: var(--text);
}

.lang-link.is-active {
  color: var(--green);
}

.lang-sep {
  color: var(--border-2);
  font-size: 0.8rem;
}

.lang-switch--footer {
  margin-left: 0;
}

/* ---------- Toastr tweaks to fit the dark theme ---------- */
#toast-container>div {
  opacity: 0.98;
  box-shadow: 0 10px 30px -8px rgba(0, 0, 0, 0.5);
}

@media (max-width: 560px) {
  .section {
    padding: 80px 0;
  }

  .tech__grid {
    grid-template-columns: 1fr;
  }

  .metrics__grid {
    grid-template-columns: 1fr 1fr;
  }

  .challenge__card,
  .pathway,
  .form {
    padding: 26px;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}

/* =========================================================
   v3 additions — homepage extras
   ========================================================= */
.card {
  position: relative;
}

.card__num {
  position: absolute;
  top: 22px;
  right: 26px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  color: rgba(255, 111, 94, 0.35);
  letter-spacing: 0.04em;
}

.pipeline__heading {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.15rem;
  margin-bottom: 18px;
  color: var(--text);
}

.tech__cta {
  margin-top: 34px;
  text-align: center;
}

/* =========================================================
   PLATFORM PAGE — The Goldstone Platform
   ========================================================= */

/* Sub-hero */
.subhero {
  position: relative;
  overflow: hidden;
  padding: 150px 0 90px;
  background: radial-gradient(120% 90% at 80% 0%, #0e2b2f 0%, var(--dark) 62%);
  border-bottom: 1px solid var(--border);
}

.subhero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(70% 70% at 70% 20%, #000, transparent 80%);
  -webkit-mask-image: radial-gradient(70% 70% at 70% 20%, #000, transparent 80%);
  opacity: 0.45;
}

.subhero__glow {
  position: absolute;
  width: 560px;
  height: 560px;
  right: -140px;
  top: -160px;
  background: radial-gradient(circle, var(--green-glow), transparent 65%);
  filter: blur(34px);
  opacity: 0.5;
  pointer-events: none;
}

.subhero__inner {
  position: relative;
  z-index: 2;
  max-width: 860px;
}

.subhero__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 26px;
  transition: color 0.2s;
}

.subhero__back:hover {
  color: var(--green);
}

.subhero__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}

.subhero__sub {
  font-size: clamp(1.02rem, 2vw, 1.22rem);
  color: var(--muted);
  max-width: 680px;
}

.subhero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.chip {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: 999px;
  padding: 9px 16px;
}

/* Spec sections */
.spec {
  background: var(--bg);
}

.spec--alt {
  background: var(--bg-2);
}

.brief {
  max-width: 820px;
  padding-left: 28px;
}

.brief p {
  color: var(--muted);
  font-size: 1.08rem;
  margin-bottom: 16px;
}

.brief p:last-child {
  margin-bottom: 0;
}

/* Architecture diagram */
.arch {
  display: flex;
  align-items: stretch;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.arch__node {
  flex: 1;
  min-width: 200px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.3s var(--ease), border-color 0.3s;
}

.arch__node:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 111, 94, 0.3);
}

.arch__icon {
  width: 50px;
  height: 50px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-soft);
  color: var(--green);
  border: 1px solid rgba(255, 111, 94, 0.22);
}

.arch__icon svg {
  width: 26px;
  height: 26px;
}

.arch__title {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.08rem;
}

.arch__arrow {
  align-self: center;
  width: 30px;
  height: 2px;
  background: var(--border-2);
  position: relative;
  flex: 0 0 auto;
}

.arch__arrow::after {
  content: "";
  position: absolute;
  right: -5px;
  top: -4px;
  border: 5px solid transparent;
  border-left-color: var(--green);
}

/* Spec blocks */
.spec__block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  margin-bottom: 26px;
}

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

.spec__blockhead {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.spec__index {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--green);
  font-size: 1.05rem;
}

.spec__blockhead h3 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.45rem;
}

.spec__text {
  color: var(--muted);
  max-width: 760px;
  margin-bottom: 26px;
}

/* Spectral bands */
.bands {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 30px;
}

.band {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--green);
  background: var(--green-soft);
  border: 1px solid rgba(255, 111, 94, 0.25);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
}

.band small {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.78rem;
  color: var(--muted);
}

/* Detection items */
.detect {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.detect__item {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px;
}

.detect__item h4 {
  font-family: var(--font-head);
  font-size: 1.02rem;
  margin-bottom: 8px;
  color: var(--green);
}

.detect__item p {
  color: var(--muted);
  font-size: 0.93rem;
}

.detect__item b {
  color: var(--text);
  font-weight: 600;
}

/* Spec table */
.spec__tablewrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.spec__table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
}

.spec__table th,
.spec__table td {
  text-align: left;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.spec__table thead th {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted-2);
  background: var(--bg-2);
}

.spec__table tbody tr:last-child td {
  border-bottom: 0;
}

.spec__table tbody tr:hover {
  background: rgba(255, 111, 94, 0.04);
}

.spec__table td {
  color: var(--muted);
}

.spec__table td:nth-child(3) {
  color: var(--text);
}

.layer {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--green);
  white-space: nowrap;
}

/* Spec bullet list */
.spec__list {
  display: grid;
  gap: 14px;
}

.spec__list li {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  color: var(--text);
}

.spec__list svg {
  color: var(--green);
  flex: 0 0 auto;
  margin-top: 3px;
}

/* Branch diagram */
.branch {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.branch__source {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: linear-gradient(135deg, var(--green-600), var(--green));
  color: #ffffff;
  border-radius: var(--radius);
  padding: 26px 30px;
  flex: 0 0 auto;
}

.branch__label {
  font-size: 0.82rem;
  font-weight: 600;
  opacity: 0.75;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.branch__main {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.4rem;
}

.branch__split {
  flex: 0 0 56px;
  height: 2px;
  background: var(--border-2);
  position: relative;
  margin: 0 4px;
}

.branch__split::before,
.branch__split::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 2px;
  height: 46px;
  background: var(--border-2);
}

.branch__split::before {
  top: -46px;
}

.branch__split::after {
  top: 0;
}

.branch__outcomes {
  flex: 1;
  min-width: 260px;
  display: grid;
  gap: 14px;
}

.branch__card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
}

.branch__card h4 {
  font-family: var(--font-head);
  font-size: 1.08rem;
  margin-bottom: 5px;
}

.branch__card p {
  color: var(--muted);
  font-size: 0.93rem;
}

.branch__card--accent {
  border-color: rgba(255, 111, 94, 0.35);
  background: linear-gradient(180deg, rgba(255, 111, 94, 0.06), var(--surface));
}

.branch__card--accent h4 {
  color: var(--green);
}

/* Spec two columns */
.spec__cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.spec__col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px;
}

.spec__roman {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--green);
  display: block;
  margin-bottom: 10px;
}

.spec__col h3 {
  font-family: var(--font-head);
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.spec__col p {
  color: var(--muted);
}

/* CTA band */
.cta-band {
  margin-top: 46px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  background:
    radial-gradient(120% 160% at 100% 0%, rgba(255, 111, 94, 0.14), transparent 55%),
    var(--surface);
  border: 1px solid rgba(255, 111, 94, 0.28);
  border-radius: var(--radius);
  padding: 38px 40px;
}

.cta-band h3 {
  font-family: var(--font-head);
  font-size: 1.5rem;
  margin-bottom: 6px;
}

.cta-band p {
  color: var(--muted);
}

/* Platform responsive */
@media (max-width: 860px) {
  .detect {
    grid-template-columns: 1fr;
  }

  .spec__cols {
    grid-template-columns: 1fr;
  }

  .arch {
    flex-direction: column;
  }

  .arch__arrow {
    transform: rotate(90deg);
  }

  .branch {
    flex-direction: column;
    align-items: stretch;
  }

  .branch__split {
    display: none;
  }

  .branch__source {
    align-items: flex-start;
  }

  .branch__outcomes {
    margin-top: 14px;
  }

  .spec__block {
    padding: 28px;
  }

  .cta-band {
    padding: 28px;
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Legal pages (privacy / imprint) ---------- */
.legal {
  max-width: 820px;
}

.legal__updated {
  color: var(--muted-2);
  font-size: 0.88rem;
  margin-bottom: 36px;
}

.legal__block {
  margin-bottom: 34px;
}

.legal__block h2 {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.legal__block p {
  color: var(--muted);
  margin-bottom: 12px;
}

.legal__block a {
  color: var(--green);
}