:root {
  --bg: #1f0d47;
  --surface: #2b1248;
  --accent: #ffd700;
  --accent2: #4cc9f0;
  --text: #fdfdfd;
  --muted: #b8a8d8;
  --cork: #c4a574;
  --cork-dark: #8b6b42;
  --note: #fff9e8;
  --shadow: rgba(0, 0, 0, 0.35);
  --glow: rgba(140, 64, 255, 0.45);
  --font-body: "DM Sans", system-ui, sans-serif;
  --font-display: "Fraunces", Georgia, serif;
  --max: 1120px;
  --edge: clamp(1.25rem, 4vw, 2.75rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, var(--glow), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 20%, rgba(76, 201, 240, 0.12), transparent 50%),
    var(--bg);
  min-height: 100vh;
}

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

a {
  color: var(--accent2);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #111;
  padding: 0.5rem 1rem;
  z-index: 100;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* —— margin_dots nav —— */
.margin-dots {
  position: fixed;
  right: clamp(0.75rem, 2vw, 1.25rem);
  top: 50%;
  transform: translateY(-50%);
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 0.75rem 0.5rem;
}

.margin-dots__dot {
  appearance: none;
  padding: 0;
  cursor: pointer;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2px solid var(--muted);
  background: transparent;
  transition: transform 0.2s, background 0.2s, border-color 0.2s;
}

.margin-dots__dot:hover,
.margin-dots__dot.is-active {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.15);
}

/* —— hero / window_frame —— */
.hero {
  position: relative;
  min-height: min(92vh, 920px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: calc(var(--edge) + 1rem) var(--edge) var(--edge);
  padding-right: calc(var(--edge) + 2rem);
  max-width: var(--max);
  margin: 0 auto;
  align-items: center;
  overflow: hidden;
}

.hero__art {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero__backdrop {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.28;
  filter: saturate(1.1) blur(1px);
}

.hero__copy,
.window-frame {
  position: relative;
  z-index: 1;
}

.hero__kicker {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent2);
  font-weight: 600;
}

.hero__title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 3.75rem);
  line-height: 1.05;
  font-weight: 700;
  color: var(--text);
  max-width: 14ch;
}

.hero__tagline {
  margin: 0;
  max-width: 36ch;
  color: var(--muted);
  font-size: clamp(1rem, 2.2vw, 1.2rem);
}

.window-frame {
  width: min(100%, 320px);
  margin-top: 0.5rem;
  border-radius: 18px;
  background: rgba(15, 8, 32, 0.85);
  border: 1px solid rgba(255, 215, 0, 0.25);
  box-shadow:
    0 24px 60px var(--shadow),
    0 0 0 1px rgba(76, 201, 240, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(8px);
}

.window-frame__bar {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.window-frame__bar span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(184, 168, 216, 0.35);
}

.window-frame__bar span:first-child { background: #ff6b6b; }
.window-frame__bar span:nth-child(2) { background: var(--accent); }
.window-frame__bar span:nth-child(3) { background: #51cf66; }

.window-frame__body {
  padding: 8px;
  border-radius: 0 0 18px 18px;
  overflow: hidden;
}

.window-frame__body img {
  width: 100%;
  border-radius: 12px;
}

@media (min-width: 860px) {
  .hero {
    grid-template-columns: 1fr 1fr;
    min-height: 88vh;
  }

  .window-frame {
    justify-self: end;
    width: min(100%, 340px);
  }
}

/* —— section intros —— */
.section-intro {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--edge);
  padding-right: calc(var(--edge) + 2rem);
}

.section-intro--center {
  text-align: center;
  max-width: 640px;
}

.section-intro--left h2,
.section-intro--center h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.35rem);
}

.section-intro p {
  margin: 0;
  color: var(--muted);
}

/* —— cork_notes features —— */
.features {
  padding: clamp(3rem, 8vw, 5rem) 0;
}

.cork-board__surface {
  position: relative;
  max-width: var(--max);
  margin: 2.5rem auto 0;
  min-height: 520px;
  padding: clamp(2rem, 5vw, 3rem);
  margin-left: var(--edge);
  margin-right: calc(var(--edge) + 1.5rem);
  border-radius: 8px;
  background:
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 4px,
      rgba(0, 0, 0, 0.03) 4px,
      rgba(0, 0, 0, 0.03) 8px
    ),
    linear-gradient(160deg, var(--cork) 0%, var(--cork-dark) 100%);
  box-shadow:
    inset 0 2px 8px rgba(0, 0, 0, 0.15),
    0 20px 50px var(--shadow);
}

.cork-note {
  position: absolute;
  width: min(280px, 42vw);
  padding: 1.1rem 1.15rem 1.25rem;
  background: var(--note);
  color: #2a2035;
  box-shadow: 3px 6px 14px rgba(0, 0, 0, 0.22);
  transform: rotate(var(--rot, 0deg));
}

.cork-note h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: #1f0d47;
}

.cork-note p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.5;
  color: #3d3450;
}

.cork-note__pin {
  position: absolute;
  top: -7px;
  left: 50%;
  transform: translateX(-50%);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #ff6b8a, #c9184a);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.35);
}

.cork-note--1 { --rot: -2.5deg; top: 8%; left: 4%; }
.cork-note--2 { --rot: 3deg; top: 6%; right: 6%; }
.cork-note--3 { --rot: -1deg; bottom: 18%; left: 8%; }
.cork-note--4 { --rot: 2.5deg; bottom: 12%; right: 4%; }

.cork-board__photo {
  position: absolute;
  width: min(180px, 28vw);
  border: 6px solid #fff;
  box-shadow: 4px 8px 20px rgba(0, 0, 0, 0.25);
  object-fit: cover;
  aspect-ratio: 1;
}

.cork-board__photo--a {
  bottom: 8%;
  left: 38%;
  transform: rotate(-4deg);
}

.cork-board__photo--b {
  top: 42%;
  left: 42%;
  transform: rotate(5deg);
  width: min(160px, 24vw);
}

@media (max-width: 720px) {
  .cork-board__surface {
    min-height: 680px;
  }

  .cork-note {
    position: relative;
    width: 100%;
    max-width: none;
    margin-bottom: 1rem;
    position: static;
    transform: none;
  }

  .cork-board__photo {
    display: none;
  }
}

/* —— device_pair screens —— */
.screens {
  padding: clamp(3rem, 8vw, 5rem) 0 4rem;
}

.device-pair__stage {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-end;
  gap: clamp(1.5rem, 4vw, 3rem);
  max-width: var(--max);
  margin: 2.5rem auto 0;
  padding: 0 var(--edge);
  padding-right: calc(var(--edge) + 2rem);
}

.device-pair__phone {
  margin: 0;
  text-align: center;
}

.device-pair__bezel {
  padding: 10px;
  border-radius: 28px;
  background: linear-gradient(145deg, #3a2a5c, #12082a);
  border: 2px solid rgba(255, 215, 0, 0.2);
  box-shadow:
    0 20px 50px var(--shadow),
    0 0 40px rgba(76, 201, 240, 0.08);
}

.device-pair__bezel img {
  width: min(240px, 38vw);
  border-radius: 20px;
}

.device-pair__phone--left {
  transform: rotate(-3deg) translateY(12px);
}

.device-pair__phone--right {
  transform: rotate(2deg);
}

.device-pair__phone figcaption {
  margin-top: 0.85rem;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent2);
  font-weight: 600;
}

/* —— tab_switch legal —— */
.legal {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 var(--edge) 4rem;
  padding-right: calc(var(--edge) + 2rem);
}

.tab-switch__tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid rgba(184, 168, 216, 0.25);
  padding-bottom: 0.5rem;
}

.tab-switch__tab {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

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

.tab-switch__tab.is-active {
  background: rgba(255, 215, 0, 0.15);
  color: var(--accent);
}

.tab-switch__panel {
  display: none;
}

.tab-switch__panel.is-active {
  display: block;
}

.legal-prose h2 {
  font-family: var(--font-display);
  font-size: 1.65rem;
  margin: 0 0 1rem;
}

.legal-prose p {
  margin: 0 0 1rem;
  color: rgba(253, 253, 253, 0.88);
}

.site-footer {
  text-align: center;
  padding: 2rem var(--edge) 2.5rem;
  padding-right: calc(var(--edge) + 2rem);
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid rgba(184, 168, 216, 0.15);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 600px) {
  .margin-dots {
    top: auto;
    bottom: 1rem;
    right: 50%;
    transform: translateX(50%);
    flex-direction: row;
  }

  .device-pair__phone--left,
  .device-pair__phone--right {
    transform: none;
  }
}