/* Ringbind — dark theme, Syne + DM Sans */

:root {
  --color-primary: #3e7f5b;
  --color-primary-bright: #52a078;
  --color-primary-glow: rgba(62, 127, 91, 0.35);
  --color-primary-hover: #5ad49a;
  --color-bg: #050505;
  --color-bg-elevated: #0e1110;
  --color-text: #f2f2f0;
  --color-text-muted: #9caaa4;
  --color-border: rgba(62, 127, 91, 0.22);
  --shadow-soft: 0 24px 64px rgba(0, 0, 0, 0.55);
  --shadow-green: 0 0 48px rgba(62, 127, 91, 0.18);
  --radius: 10px;
  --nav-h: 76px;
  --section-y: clamp(4rem, 10vw, 7rem);
  --max-text: 38rem;
  --max-content: 1120px;
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, -apple-system, sans-serif;
  --font-wordmark: "Space Grotesk", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -30%, rgba(62, 127, 91, 0.2), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 40%, rgba(62, 127, 91, 0.08), transparent 50%),
    radial-gradient(ellipse 50% 35% at 0% 70%, rgba(62, 127, 91, 0.06), transparent 45%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

a {
  color: var(--color-primary-bright);
  text-decoration: none;
  transition: color 0.2s ease, text-shadow 0.2s ease;
}

a:hover {
  color: var(--color-primary-hover);
  text-shadow: 0 0 20px var(--color-primary-glow);
}

/* ----- Nav ----- */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
  background: rgba(5, 5, 5, 0.78);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 0 rgba(62, 127, 91, 0.12);
  backdrop-filter: blur(16px);
}

.site-nav__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.site-nav__wordmark {
  display: inline-block;
  font-family: var(--font-wordmark);
  font-weight: 700;
  font-size: clamp(1.15rem, 2.5vw, 1.35rem);
  letter-spacing: 0.22em;
  background: linear-gradient(135deg, var(--color-primary-bright) 0%, var(--color-primary) 55%, #7bdcaa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 20px rgba(62, 127, 91, 0.35));
}

.site-nav__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(1rem, 3vw, 2rem);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__links a {
  font-family: var(--font-display);
  color: var(--color-text);
  font-weight: 700;
  font-size: clamp(0.8125rem, 1.5vw, 0.9375rem);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  position: relative;
}

.site-nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-bright));
  transition: width 0.25s ease;
}

.site-nav__links a:hover {
  color: var(--color-primary-bright);
  text-shadow: none;
}

.site-nav__links a:hover::after {
  width: 100%;
}

/* ----- Layout ----- */

main {
  padding-top: var(--nav-h);
}

.section-inner {
  width: min(100% - 2.5rem, var(--max-content));
  margin-inline: auto;
}

/* ----- Reveal ----- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--no-delay.is-visible {
  transition-delay: 0s;
}

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

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

  .split__figure--accessory::before,
  .split__figure--accessory::after,
  .split__figure--accessory img {
    animation: none;
  }

  .split__figure--accessory::before,
  .split__figure--accessory::after {
    opacity: 0.38;
    transform: translate(-50%, -50%) scale(1);
    filter: blur(24px);
  }

  .split__figure--accessory img {
    opacity: 0.88;
  }
}

/* ----- Hero ----- */

.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-h));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(2rem, 6vw, 4rem) 1.25rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 20% 10% auto;
  height: min(50vh, 420px);
  background: radial-gradient(ellipse closest-side, var(--color-primary-glow), transparent 70%);
  pointer-events: none;
  opacity: 0.9;
}

.hero > div {
  position: relative;
  z-index: 1;
}

.hero__logo {
  width: min(260px, 68vw);
  height: auto;
  margin-inline: auto;
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
  filter: drop-shadow(0 12px 40px rgba(62, 127, 91, 0.25));
}

.hero__title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 6vw, 3.85rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  background: linear-gradient(135deg, #ffffff 0%, #c8e8d4 45%, var(--color-primary-bright) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 80px var(--color-primary-glow);
}

.hero__subtitle {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(1.15rem, 2.3vw, 1.45rem);
  color: var(--color-text-muted);
  font-weight: 500;
  max-width: 28rem;
  margin-inline: auto;
}

.hero__subtitle strong {
  color: var(--color-primary-bright);
  font-weight: 600;
}

/* ----- Description ----- */

.description {
  position: relative;
  padding: var(--section-y) 1.25rem;
  border-top: 1px solid var(--color-border);
}

.description__text {
  margin: 0 auto;
  max-width: var(--max-text);
  text-align: center;
  font-size: clamp(1.125rem, 2.2vw, 1.35rem);
  color: var(--color-text-muted);
  padding-top: 0.65rem;
  border-top: 2px solid var(--color-primary);
  box-shadow: 0 -12px 40px -20px var(--color-primary-glow);
  line-height: 1.75;
}

/* ----- Split sections ----- */

.split {
  padding: var(--section-y) 1.25rem;
  border-top: 1px solid var(--color-border);
}

.split__grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
  align-items: center;
}

@media (min-width: 900px) {
  .split__grid {
    grid-template-columns: 1fr 1fr;
    gap: clamp(2.5rem, 6vw, 4.5rem);
  }
}

.split__col {
  min-width: 0;
}

.split__col--visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.split__text {
  font-size: clamp(1.25rem, 2.5vw, 1.55rem);
  line-height: 1.72;
  color: var(--color-text-muted);
  margin: 0 0 1.75rem;
}

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

.split__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.btn--primary {
  background: linear-gradient(145deg, var(--color-primary-bright), var(--color-primary));
  color: #fff;
  box-shadow: var(--shadow-soft), var(--shadow-green);
}

.btn--primary:hover {
  background: linear-gradient(145deg, var(--color-primary-hover), var(--color-primary-bright));
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft), 0 0 32px var(--color-primary-glow);
}

.btn--muted {
  background: var(--color-bg-elevated);
  color: var(--color-text-muted);
  cursor: not-allowed;
  box-shadow: none;
  border: 1px solid var(--color-border);
}

.split__figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  background: var(--color-bg-elevated);
}

.split__figure img {
  width: 100%;
  vertical-align: middle;
}

/* Accessory screenshots — soft green smoke, no hard frame */
.split__figure--accessory {
  position: relative;
  max-width: min(264px, 58vw);
  width: 100%;
  margin: 0;
  padding: 2.25rem;
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
  overflow: visible;
}

.split__figure--accessory::before,
.split__figure--accessory::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 140%;
  height: 130%;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(
    ellipse closest-side,
    rgba(62, 127, 91, 0.42) 0%,
    rgba(62, 127, 91, 0.12) 42%,
    transparent 72%
  );
  filter: blur(28px);
  opacity: 0.45;
  transform: translate(-50%, -50%);
  animation: accessory-smoke 5.5s ease-in-out infinite alternate;
}

.split__figure--accessory::after {
  width: 110%;
  height: 100%;
  background: radial-gradient(
    ellipse closest-side,
    rgba(82, 160, 120, 0.35) 0%,
    rgba(62, 127, 91, 0.08) 50%,
    transparent 68%
  );
  filter: blur(36px);
  animation: accessory-smoke-alt 7s ease-in-out infinite alternate;
  animation-delay: -2s;
}

main > section:nth-child(3) .split__figure--accessory::before {
  animation-delay: -0.8s;
}

main > section:nth-child(4) .split__figure--accessory::before {
  animation-delay: -3.2s;
}

main > section:nth-child(5) .split__figure--accessory::before {
  animation-delay: -1.4s;
}

main > section:nth-child(3) .split__figure--accessory::after {
  animation-delay: -4s;
}

main > section:nth-child(4) .split__figure--accessory::after {
  animation-delay: -1s;
}

main > section:nth-child(5) .split__figure--accessory::after {
  animation-delay: -5.5s;
}

@keyframes accessory-smoke {
  0% {
    opacity: 0.22;
    transform: translate(-50%, -50%) scale(0.92);
  }
  100% {
    opacity: 0.58;
    transform: translate(-50%, -50%) scale(1.06);
  }
}

@keyframes accessory-smoke-alt {
  0% {
    opacity: 0.18;
    transform: translate(-50%, -50%) scale(1.04);
  }
  100% {
    opacity: 0.48;
    transform: translate(-50%, -50%) scale(0.9);
  }
}

@keyframes accessory-img {
  0% {
    opacity: 0.62;
  }
  100% {
    opacity: 0.94;
  }
}

.split__figure--accessory img {
  position: relative;
  z-index: 1;
  width: 100%;
  border-radius: 10px;
  -webkit-mask-image: radial-gradient(ellipse 92% 94% at 50% 50%, #000 52%, transparent 100%);
  mask-image: radial-gradient(ellipse 92% 94% at 50% 50%, #000 52%, transparent 100%);
  animation: accessory-img 4.2s ease-in-out infinite alternate;
}

main > section:nth-child(3) .split__figure--accessory img {
  animation-delay: -1.2s;
}

main > section:nth-child(4) .split__figure--accessory img {
  animation-delay: -2.8s;
}

main > section:nth-child(5) .split__figure--accessory img {
  animation-delay: -0.4s;
}

/* ----- Footer ----- */

.site-footer {
  padding: clamp(3rem, 8vw, 5rem) 1.25rem;
  text-align: center;
  border-top: 1px solid var(--color-border);
  background: linear-gradient(180deg, transparent, rgba(62, 127, 91, 0.06));
}

.site-footer__link {
  display: inline-block;
  margin-bottom: 1.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--color-primary-bright);
}

.site-footer__link:hover {
  color: var(--color-primary-hover);
}

.site-footer__copy {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ----- Contact page (symmetrical) ----- */

.page-contact {
  min-height: calc(100vh - var(--nav-h));
  padding: clamp(3rem, 10vw, 5.5rem) 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-contact__shell {
  width: min(100% - 2rem, 960px);
  margin-inline: auto;
  text-align: center;
}

.page-contact__logo {
  width: min(200px, 52vw);
  height: auto;
  margin-inline: auto;
  margin-bottom: clamp(1.25rem, 3vw, 1.75rem);
  filter: drop-shadow(0 12px 40px rgba(62, 127, 91, 0.25));
}

.page-contact__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4.5vw, 2.85rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #fff, var(--color-primary-bright));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-contact__lead {
  margin: 0 0 clamp(2rem, 5vw, 3rem);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.page-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  text-align: center;
}

@media (min-width: 720px) {
  .page-contact__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: stretch;
  }
}

.page-contact__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  min-height: 11rem;
  padding: clamp(1.5rem, 3vw, 2rem) 1.25rem;
  border-radius: 14px;
  border: 1px solid var(--color-border);
  background: linear-gradient(165deg, rgba(62, 127, 91, 0.12), rgba(14, 17, 16, 0.75));
  box-shadow: 0 0 0 1px rgba(62, 127, 91, 0.06), var(--shadow-green);
}

.page-contact__label {
  display: block;
  font-family: var(--font-display);
  color: var(--color-primary-bright);
  font-weight: 700;
  margin-bottom: 0.85rem;
  letter-spacing: 0.12em;
  font-size: 0.6875rem;
  text-transform: uppercase;
}

.page-contact__value {
  margin: 0;
  font-size: clamp(1rem, 2vw, 1.0625rem);
  color: var(--color-text-muted);
  line-height: 1.65;
  text-decoration: none;
  max-width: 16rem;
}

a.page-contact__value:hover {
  color: var(--color-primary-hover);
}

.page-contact__address {
  font-style: normal;
}