/* Dickbroom BC — marketing site
   Palette & type from assets/Brand_Assets/README.md */

:root {
  --green: #22c55e;
  --green-top: #3bd873;
  --green-bottom: #16a34a;
  --deep-green: #147a45;
  --ink: #15181d;
  --ink-soft: #1d222b;
  --paper: #f4f7fa;
  --paper-warm: #eef2f6;
  --slate: #64748b;
  --slate-dark: #9aa7b8;
  --line: rgba(21, 24, 29, 0.08);
  --line-strong: rgba(21, 24, 29, 0.14);

  --font-display: "Poppins", system-ui, sans-serif;
  --font-body: "Satoshi", "Urbanist", system-ui, sans-serif;
  --font-ui: "Urbanist", "Satoshi", system-ui, sans-serif;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 4.5rem;
  --wrap: 1120px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.6;
  letter-spacing: -0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
  letter-spacing: 0;
}

/* ——— Atmosphere ——— */

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.atmosphere__wash {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 85% -10%, rgba(59, 216, 115, 0.14), transparent 55%),
    radial-gradient(ellipse 60% 40% at 10% 20%, rgba(20, 122, 69, 0.06), transparent 50%),
    linear-gradient(180deg, #f8fafb 0%, var(--paper) 40%, #e9eef3 100%);
}

.atmosphere__grid {
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(21, 24, 29, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 24, 29, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, #000 20%, transparent 75%);
}

.atmosphere__beam {
  position: absolute;
  top: -20%;
  right: -5%;
  width: 55vw;
  height: 70vh;
  background: linear-gradient(135deg, rgba(59, 216, 115, 0.12), transparent 60%);
  filter: blur(40px);
  transform: rotate(-8deg);
  animation: beam-drift 18s var(--ease) infinite alternate;
}

@keyframes beam-drift {
  from { transform: rotate(-8deg) translate3d(0, 0, 0); }
  to { transform: rotate(-4deg) translate3d(-2%, 3%, 0); }
}

/* ——— Layout ——— */

.wrap {
  width: min(100% - 2.5rem, var(--wrap));
  margin-inline: auto;
}

.wrap--narrow {
  width: min(100% - 2.5rem, 720px);
}

.section {
  padding: clamp(4.5rem, 10vw, 7.5rem) 0;
  position: relative;
}

.section--tight {
  padding: 0 0 clamp(2rem, 5vw, 3.5rem);
}

.section--ink {
  background: linear-gradient(165deg, #0f1216 0%, #1d222b 55%, #15181d 100%);
  color: var(--paper);
}

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

.section--cta {
  text-align: center;
  padding-bottom: clamp(5rem, 12vw, 8rem);
}

.section-head {
  max-width: 38rem;
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}

.section-head--light .eyebrow {
  color: var(--green);
}

.section-head--light .section-lede {
  color: var(--slate-dark);
}

.section--cta .section-head,
.section--cta .section-lede {
  margin-inline: auto;
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--deep-green);
}

.section-title,
.hero__title,
.pillar__title,
.roadmap__title,
.standard__name {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.05;
  margin: 0;
}

.section-title {
  font-size: clamp(2.15rem, 4.5vw, 3.25rem);
  color: inherit;
}

.section-lede {
  margin: 1.15rem 0 0;
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  line-height: 1.65;
  color: var(--slate);
  letter-spacing: -0.015em;
}

/* ——— Header ——— */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease), backdrop-filter 0.35s;
}

.site-header.is-scrolled {
  background: rgba(244, 247, 250, 0.82);
  backdrop-filter: blur(16px) saturate(1.2);
  box-shadow: 0 1px 0 var(--line);
}

.site-header__inner {
  width: min(100% - 2rem, var(--wrap));
  margin-inline: auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand img {
  width: clamp(148px, 22vw, 188px);
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.nav-link {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 0.9375rem;
  letter-spacing: -0.01em;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  color: var(--ink);
  opacity: 0.72;
  transition: opacity 0.2s, background 0.2s, color 0.2s;
}

.nav-link:hover {
  opacity: 1;
}

.nav-link--cta {
  opacity: 1;
  margin-left: 0.35rem;
  background: var(--ink);
  color: var(--paper);
}

.nav-link--cta:hover {
  background: var(--deep-green);
}

.menu-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.menu-toggle span {
  display: block;
  height: 2px;
  width: 1.35rem;
  margin-inline: auto;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.25s var(--ease), opacity 0.2s;
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.5rem 1.25rem 1.25rem;
  background: rgba(244, 247, 250, 0.96);
  border-bottom: 1px solid var(--line);
}

.mobile-nav a {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 1.05rem;
  padding: 0.85rem 0.5rem;
  letter-spacing: -0.02em;
}

/* ——— Hero ——— */

.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: grid;
  align-items: center;
  padding: clamp(2rem, 6vw, 4rem) 0 clamp(3rem, 8vw, 5rem);
  overflow: hidden;
}

.hero__plane {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center end;
  pointer-events: none;
}

.hero__mark {
  width: min(92vw, 780px);
  height: auto;
  margin-right: -8vw;
  opacity: 0.22;
  animation: mark-in 1.4s var(--ease) both;
}

.hero__chevron--rear {
  animation: chevron-pulse 4.5s var(--ease) infinite;
}

.hero__chevron--front {
  animation: chevron-pulse 4.5s var(--ease) 0.35s infinite;
}

@keyframes mark-in {
  from { opacity: 0; transform: translateX(4%) scale(0.96); }
  to { opacity: 0.22; transform: none; }
}

@keyframes chevron-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(100% - 2.5rem, var(--wrap));
  margin-inline: auto;
  max-width: 36rem;
  animation: content-rise 1s var(--ease) 0.15s both;
}

@keyframes content-rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

.hero__logo {
  width: clamp(220px, 42vw, 340px);
  margin-bottom: 1.75rem;
}

.hero__title {
  font-size: clamp(2.6rem, 6.5vw, 4.25rem);
  max-width: 12ch;
  margin-bottom: 1.15rem;
}

.hero__lede {
  margin: 0 0 2rem;
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  line-height: 1.65;
  color: var(--slate);
  max-width: 34ch;
  letter-spacing: -0.015em;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: -0.015em;
  padding: 0.9rem 1.45rem;
  border-radius: 999px;
  border: 1.5px solid transparent;
  transition: transform 0.25s var(--ease), background 0.2s, color 0.2s, border-color 0.2s;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--green);
  color: #062816;
}

.btn--primary:hover {
  background: var(--green-top);
}

.btn--ghost {
  border-color: var(--line-strong);
  background: transparent;
  color: var(--ink);
}

.btn--ghost:hover {
  border-color: var(--ink);
}

.section--ink .btn--ghost,
.section--cta .btn--ghost {
  border-color: rgba(244, 247, 250, 0.28);
  color: var(--paper);
}

.section--ink .btn--ghost:hover,
.section--cta .btn--ghost:hover {
  border-color: var(--paper);
}

/* ——— Signal row ——— */

.signal-row {
  list-style: none;
  margin: 0;
  padding: 1.35rem 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  border-block: 1px solid var(--line);
}

.signal-row__label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 0.35rem;
}

.signal-row__value {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  letter-spacing: -0.035em;
  line-height: 1.25;
}

/* ——— Pillars ——— */

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.pillar {
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-strong);
}

.pillar__index {
  margin: 0 0 1.25rem;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  color: var(--green);
}

.pillar__title {
  font-size: clamp(1.35rem, 2vw, 1.55rem);
  margin-bottom: 0.75rem;
}

.pillar__body {
  margin: 0;
  color: var(--slate);
  font-size: 1rem;
  line-height: 1.65;
}

/* ——— Standards (assets) ——— */

.standard-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.75rem, 4vw, 2.75rem) clamp(2rem, 5vw, 4rem);
}

.standard__name {
  font-size: clamp(1.5rem, 2.5vw, 1.85rem);
  color: var(--paper);
  margin-bottom: 0.35rem;
}

.standard__role {
  margin: 0 0 0.85rem;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--green);
  letter-spacing: -0.01em;
}

.standard__body {
  margin: 0;
  color: var(--slate-dark);
  font-size: 1rem;
  line-height: 1.6;
  max-width: 32ch;
}

/* ——— Fees ——— */

.fee-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1.25rem;
  align-items: stretch;
  margin-top: 0.5rem;
}

.fee-step {
  padding: 1.75rem 0 0;
  border-top: 1px solid var(--line-strong);
}

.fee-step__label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 0.5rem;
}

.fee-step__value {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.04em;
  color: var(--ink);
  margin-bottom: 0.65rem;
}

.fee-step p {
  margin: 0;
  color: var(--slate);
  font-size: 0.98rem;
}

.fee-step__arrow {
  width: 48px;
  align-self: center;
  height: 2px;
  background: linear-gradient(90deg, var(--deep-green), var(--green));
  position: relative;
}

.fee-step__arrow::after {
  content: "";
  position: absolute;
  right: -1px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--green);
  border-top: 2px solid var(--green);
  transform: translateY(-50%) rotate(45deg);
}

/* ——— Token ——— */

.token-panel {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: end;
  padding: clamp(2.5rem, 5vw, 3.5rem) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.token-panel .section-title {
  font-size: clamp(2.75rem, 6vw, 4rem);
  color: var(--green);
}

.token-meta {
  margin: 0;
  display: grid;
  gap: 1.25rem;
}

.token-meta div {
  display: grid;
  gap: 0.25rem;
}

.token-meta dt {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
}

.token-meta dd {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.035em;
}

/* ——— Roadmap ——— */

.roadmap {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2rem);
}

.roadmap__item {
  padding-top: 1.15rem;
  border-top: 2px solid var(--line-strong);
}

.roadmap__item--done {
  border-top-color: var(--green);
}

.roadmap__item--active {
  border-top-color: var(--deep-green);
}

.roadmap__status {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 0.65rem;
}

.roadmap__item--done .roadmap__status {
  color: var(--green);
}

.roadmap__item--active .roadmap__status {
  color: var(--deep-green);
}

.roadmap__title {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.roadmap__item p {
  margin: 0;
  color: var(--slate);
  font-size: 0.95rem;
  line-height: 1.55;
}

/* ——— Footer ——— */

.site-footer {
  background: #0f1216;
  color: var(--slate-dark);
  padding: clamp(3rem, 6vw, 4.5rem) 0;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.site-footer__brand p {
  margin: 1rem 0 0;
  font-family: var(--font-ui);
  font-weight: 500;
  color: var(--paper);
  letter-spacing: -0.02em;
}

.site-footer__legal p {
  margin: 0 0 1rem;
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 48ch;
}

.site-footer__copy {
  font-family: var(--font-ui);
  font-size: 0.8125rem !important;
  opacity: 0.7;
}

/* ——— Reveal ——— */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: var(--delay, 0s);
}

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

/* ——— Responsive ——— */

@media (max-width: 900px) {
  .site-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .mobile-nav:not([hidden]) {
    display: flex;
  }

  .signal-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .pillar-grid,
  .roadmap {
    grid-template-columns: 1fr;
  }

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

  .fee-flow {
    grid-template-columns: 1fr;
  }

  .fee-step__arrow {
    width: 2px;
    height: 32px;
    margin-inline: 0;
    background: linear-gradient(180deg, var(--deep-green), var(--green));
  }

  .fee-step__arrow::after {
    right: auto;
    left: 50%;
    top: auto;
    bottom: -1px;
    transform: translateX(-50%) rotate(135deg);
  }

  .token-panel,
  .site-footer__inner {
    grid-template-columns: 1fr;
  }

  .hero__plane {
    place-items: end center;
  }

  .hero__mark {
    margin: 0 0 -12vw;
    width: min(120vw, 640px);
    opacity: 0.16;
  }

  .hero__content {
    max-width: 100%;
  }
}

@media (max-width: 540px) {
  .signal-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

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

  .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .atmosphere__beam,
  .hero__mark,
  .hero__chevron--rear,
  .hero__chevron--front,
  .hero__content,
  .reveal {
    animation: none !important;
    transition: none !important;
    opacity: 1;
    transform: none;
  }
}