/* Same tokens as the app's Theme.kt: warm night by default, dawn when the system is light. */
:root {
  color-scheme: dark light;
  --ground: #140e0b;
  --surface: #1e1611;
  --ink: #f4ede4;
  --mute: #b9a99a;
  --glow: #f6a77a;
  --coral: #ff8a65;
  --amber: #f6b26b;
  --rose: #e57a8a;
  --halo: #ff9e6e;
  --glass: rgba(255, 230, 208, 0.07);
  --glass-stroke: rgba(255, 210, 174, 0.15);
  --orb-far: #5a3f31;
  --orb-near: #ffe9d2;
  --ambient: 0.16;
  --grain: 0.05;
  --shadow: rgba(0, 0, 0, 0.55);
  --ease-out: cubic-bezier(0.05, 0.7, 0.1, 1);
  --ease-in: cubic-bezier(0.3, 0, 0.8, 0.15);
}

@media (prefers-color-scheme: light) {
  :root {
    --ground: #fbf3ea;
    --surface: #fff9f3;
    --ink: #2a1e17;
    --mute: #7a6a5d;
    --glow: #c0643a;
    --coral: #e2724a;
    --amber: #d48a3a;
    --rose: #c45a70;
    --halo: #f0a07a;
    --glass: rgba(255, 255, 255, 0.55);
    --glass-stroke: rgba(138, 75, 40, 0.14);
    --orb-far: #e3cdb9;
    --orb-near: #6e3219;
    --ambient: 0.22;
    --grain: 0.035;
    --shadow: rgba(110, 50, 25, 0.22);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  padding-inline: max(16px, 1.5rem);
  background: var(--ground);
  color: var(--ink);
  font-family: "Vazirmatn", "Segoe UI", system-ui, sans-serif;
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--glow);
  text-decoration: none;
  transition: color 0.3s var(--ease-out);
}

a:hover {
  color: var(--ink);
}

img {
  max-width: 100%;
}

/* Two slow warm lights drifting behind everything, and a whisper of film grain. */
.ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.ambient span {
  position: absolute;
  width: 75vmax;
  height: 75vmax;
  border-radius: 50%;
  opacity: var(--ambient);
}

.ambient span:first-child {
  top: -30vmax;
  left: -25vmax;
  background: radial-gradient(circle, var(--coral), transparent 62%);
  animation: drift-a 28s ease-in-out infinite alternate;
}

.ambient span:last-child {
  right: -30vmax;
  bottom: -35vmax;
  background: radial-gradient(circle, var(--rose), transparent 62%);
  animation: drift-b 34s ease-in-out infinite alternate;
}

@keyframes drift-a {
  to {
    transform: translate(14vmax, 10vmax) scale(1.08);
  }
}

@keyframes drift-b {
  to {
    transform: translate(-12vmax, -9vmax) scale(0.94);
  }
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 2;
  opacity: var(--grain);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Header and footer */
.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: 72rem;
  margin: 0 auto;
  padding-block: 1.25rem;
}

.mark {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink);
  font-weight: 500;
  letter-spacing: 0.02em;
}

nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.95rem;
}

nav a {
  color: var(--mute);
}

/* Buttons: a warm gradient pill, and a glass one whose edge turns into the glow on hover. */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font: inherit;
  font-size: 0.98rem;
  font-weight: 500;
  transition: transform 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out), color 0.3s var(--ease-out);
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  color: var(--ground);
  background: linear-gradient(135deg, var(--coral), var(--amber));
  box-shadow: 0 10px 30px -14px var(--coral);
}

.btn-primary:hover {
  color: var(--ground);
  transform: translateY(-2px);
  box-shadow: 0 16px 40px -14px var(--coral);
}

.btn-ghost {
  color: var(--ink);
  background: linear-gradient(var(--glass), var(--glass)) padding-box, linear-gradient(var(--glass-stroke), var(--glass-stroke)) border-box;
}

.btn-ghost:hover {
  color: var(--ink);
  background: linear-gradient(var(--ground), var(--ground)) padding-box, linear-gradient(135deg, var(--coral), var(--amber), var(--rose)) border-box;
}

.btn-small {
  padding: 0.4rem 0.95rem;
  font-size: 0.9rem;
}

/* Hero: her presence first, then the words ink in one after another. */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 48rem;
  margin: 0 auto;
  padding-block: 2rem 5rem;
  text-align: center;
}

.presence {
  position: relative;
  display: grid;
  place-items: center;
  width: 16rem;
  max-width: 100%;
  aspect-ratio: 1;
  margin-bottom: 1rem;
}

.presence canvas {
  position: relative;
}

.halo {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle, var(--halo) 0%, color-mix(in srgb, var(--rose) 45%, transparent) 34%, transparent 68%);
  filter: blur(10px);
  animation: breathe 5.2s ease-in-out infinite;
}

@keyframes breathe {
  0%,
  100% {
    transform: scale(0.86);
    opacity: 0.3;
  }
  50% {
    transform: scale(1.04);
    opacity: 0.55;
  }
}

.eyebrow {
  margin: 0 0 0.9rem;
  color: var(--mute);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 1.1rem;
  font-size: clamp(2.1rem, 5.6vw, 3.7rem);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.word,
.rise {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.45em);
  filter: blur(6px);
  animation: ink-in 1s var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 80ms + 250ms);
}

.rise {
  display: block;
}

.actions.rise {
  display: flex;
}

@keyframes ink-in {
  to {
    opacity: 1;
    transform: none;
    filter: none;
  }
}

.lede {
  margin: 0 auto 2rem;
  max-width: 34rem;
  color: var(--mute);
  font-size: 1.15rem;
  line-height: 1.75;
}

.actions {
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

/* Screens: three phones, the middle one showing the reply inking in. */
.screens {
  display: grid;
  grid-template-columns: 1fr 1.18fr 1fr;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.5rem);
  max-width: 60rem;
  margin: 0 auto 7rem;
}

.screens figure {
  margin: 0;
}

.phone {
  position: relative;
  padding: 0.45rem;
  border-radius: 2.3rem;
  background: var(--surface);
  border: 1px solid var(--glass-stroke);
  box-shadow: 0 40px 90px -40px var(--shadow);
  transition: transform 0.8s var(--ease-out);
}

.phone img {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 20;
  object-fit: cover;
  border-radius: 1.9rem;
  background: var(--ground);
}

.phone.center::before {
  content: "";
  position: absolute;
  inset: -18%;
  z-index: -1;
  border-radius: 50%;
  background: radial-gradient(circle, var(--halo), transparent 62%);
  opacity: 0.28;
  filter: blur(30px);
}

.phone.side {
  transform: translateY(2.5rem) scale(0.94);
}

.phone.side:hover {
  transform: translateY(1.5rem) scale(0.96);
}

.phone.center:hover {
  transform: translateY(-0.5rem);
}

/* States: every loader she uses, live. */
.states {
  max-width: 60rem;
  margin: 0 auto 7rem;
  text-align: center;
}

h2 {
  margin: 0 0 0.6rem;
  font-size: clamp(1.6rem, 3.6vw, 2.35rem);
  font-weight: 500;
  letter-spacing: -0.01em;
}

.section-lede {
  margin: 0 auto;
  max-width: 32rem;
  color: var(--mute);
  font-size: 1.05rem;
}

.state-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(7.5rem, 1fr));
  gap: 1rem;
  margin: 2.5rem 0 1.25rem;
  padding: 0;
  list-style: none;
}

.state-list li {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  padding: 1.2rem 0.6rem 1rem;
  border-radius: 1.3rem;
  background: var(--glass);
  border: 1px solid var(--glass-stroke);
  color: var(--mute);
  font-size: 0.9rem;
}

.credit {
  margin: 0;
  color: var(--mute);
  font-size: 0.9rem;
}

/* Notes: glass cards whose hairline warms into the gradient on hover. */
.notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  max-width: 72rem;
  margin: 0 auto 5rem;
}

.card {
  position: relative;
  padding: 1.5rem 1.55rem 1.6rem;
  border-radius: 1.4rem;
  background: var(--glass);
  border: 1px solid var(--glass-stroke);
}

.card::after {
  content: "";
  position: absolute;
  inset: -1px;
  padding: 1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--coral), var(--amber), var(--rose));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s var(--ease-out);
}

.card:hover::after {
  opacity: 0.85;
}

.card h2 {
  font-size: 1.15rem;
}

.card p {
  margin: 0;
  color: var(--mute);
}

.foot {
  border-top: 1px solid var(--glass-stroke);
  color: var(--mute);
  font-size: 0.9rem;
}

.foot p {
  margin: 0;
}

/* Scroll reveal, only once the script has taken charge, so the page reads fine without it. */
.reveal-ready .reveal {
  opacity: 0;
  translate: 0 28px;
  filter: blur(4px);
  transition: opacity 0.9s var(--ease-out), translate 0.9s var(--ease-out), filter 0.9s var(--ease-out);
  transition-delay: calc(var(--i, 0) * 90ms);
}

.reveal-ready .reveal.in {
  opacity: 1;
  translate: 0 0;
  filter: none;
}

@media (max-width: 760px) {
  .screens {
    display: flex;
    gap: 1rem;
    margin-inline: calc(-1 * max(16px, 1.5rem));
    padding: 1rem max(16px, 1.5rem) 3rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .screens figure {
    flex: 0 0 70%;
    scroll-snap-align: center;
  }

  .screens figure:nth-child(2) {
    order: -1;
  }

  .phone.side,
  .phone.side:hover {
    transform: none;
  }

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

@media (max-width: 560px) {
  .bar {
    flex-wrap: wrap;
  }

  nav {
    width: 100%;
    justify-content: space-between;
  }
}

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

  .ambient span,
  .halo {
    animation: none;
  }

  .word,
  .rise {
    animation: none;
    opacity: 1;
    transform: none;
    filter: none;
  }

  .reveal-ready .reveal {
    transition: none;
    opacity: 1;
    translate: 0 0;
    filter: none;
  }

  .phone,
  .btn {
    transition: none;
  }
}