/* ============================================================
   Cassileth Studio — single stylesheet
   Cream palette (logo-derived) · used by every page
   ============================================================ */

/* --- Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* --- Design tokens --- */
:root {
  /* Surfaces */
  --bg:         #F2EBD8;
  --surface:    #ECE5CC;
  --card:       #FBF7E9;
  --card-hover: #FFFCEF;
  --border:     rgba(45, 60, 52, 0.10);
  --border-2:   rgba(45, 60, 52, 0.05);

  /* Text */
  --text:       #1F2B26;
  --text-2:     #5C6A60;
  --text-3:     #98998C;

  /* App brand colors — for fills, dots, glows */
  --listbox:    #2EB872;
  --tempo:      #D13F92;

  /* Darker variants for text on cream (contrast-safe) */
  --listbox-text: #096B3A;
  --tempo-text:   #841A56;

  /* Accent — defaults when no data-app is set (Tonic / homepage chrome) */
  --accent:        var(--text-2);
  --accent-text:   var(--text-2);
  --accent-dim:    rgba(45, 60, 52, 0.06);
  --accent-border: rgba(45, 60, 52, 0.12);
}

/* Per-app theming — sets --accent-* family.
   Targets both <body data-app="..."> (app pages)
   and .app-card[data-app="..."] (homepage cards). */
body[data-app="listbox"],
.app-card[data-app="listbox"] {
  --accent:        var(--listbox);
  --accent-text:   var(--listbox-text);
  --accent-dim:    rgba(46, 184, 114, 0.12);
  --accent-border: rgba(46, 184, 114, 0.38);
}
body[data-app="tempo"],
.app-card[data-app="tempo"] {
  --accent:        var(--tempo);
  --accent-text:   var(--tempo-text);
  --accent-dim:    rgba(209, 63, 146, 0.10);
  --accent-border: rgba(209, 63, 146, 0.34);
}

/* --- Base --- */
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
  animation: pageFade 0.6s ease;
}

@keyframes pageFade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* --- Paper grain texture (subtle) --- */
body::before {
  content: '';
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.04;
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 9999;
  animation: grain 8s steps(10) infinite;
}

@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  10% { transform: translate(-2%, -3%); }
  20% { transform: translate(3%, 1%); }
  30% { transform: translate(-1%, 4%); }
  40% { transform: translate(4%, -2%); }
  50% { transform: translate(-3%, 2%); }
  60% { transform: translate(2%, -4%); }
  70% { transform: translate(-4%, 1%); }
  80% { transform: translate(1%, 3%); }
  90% { transform: translate(3%, -1%); }
}

/* --- Ambient bg glow (subtle, accent-tinted) --- */
.bg-glow {
  position: fixed;
  top: -10vh;
  left: 50%;
  transform: translateX(-50%);
  width: 60vw;
  height: 50vh;
  background: radial-gradient(
    ellipse at center,
    var(--accent-dim) 0%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
  opacity: 0.7;
}

/* --- Layout wrapper --- */
.wrap {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 2.5rem;
}
body[data-app] .wrap { max-width: 960px; }

/* --- Header --- */
header {
  padding: 1.8rem 0;
  border-bottom: 1px solid var(--border-2);
  position: relative;
  z-index: 2;
}
header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: 1.05rem;
  letter-spacing: 0.025em;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
}
.wordmark-logo {
  height: 28px;
  width: auto;
  display: block;
  flex-shrink: 0;
  margin-right: 0.7rem;
}
.wordmark-studio {
  color: var(--text-3);
  font-weight: 300;
}

.header-tagline {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
}

.back-link {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  text-decoration: none;
  transition: color 0.2s;
}
.back-link:hover { color: var(--text-2); }
.back-link svg { transition: transform 0.2s; }
.back-link:hover svg { transform: translateX(-3px); }

/* --- Section label --- */
.section-label {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 2rem;
}
body:not([data-app]) .section-label {
  padding-top: 1rem;
  border-top: 1px solid var(--border-2);
}

/* --- Rule --- */
.rule {
  height: 1px;
  background: var(--border-2);
  margin: 1rem 0;
}

/* --- Shared animations --- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(5px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.25; }
}

/* --- Badge (shared between homepage cards & app page heroes) --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.28rem 0.72rem;
  border-radius: 999px;
  width: fit-content;
  background: var(--accent-dim);
  color: var(--accent-text);
  border: 1px solid var(--accent-border);
}
.badge-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  animation: blink 2.5s ease infinite;
}

/* ============================================================
   HOMEPAGE — hero
   (Scoped via body:not([data-app]) since homepage has no data-app)
   ============================================================ */

body:not([data-app]) .hero {
  padding: 2rem 0 5rem;
  opacity: 0;
  animation: fadeUp 1s ease forwards 0.15s;
}
body:not([data-app]) .hero-eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 2.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
body:not([data-app]) .hero-eyebrow::after {
  content: '';
  display: block;
  height: 1px;
  width: 40px;
  background: var(--text-3);
  opacity: 0.4;
}
body:not([data-app]) .hero h1 {
  font-family: 'Fraunces', serif;
  font-weight: 300;
  font-size: clamp(2.8rem, 6.5vw, 6rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
  max-width: 680px;
}
body:not([data-app]) .hero h1 em {
  font-style: italic;
  color: var(--text-2);
}
body:not([data-app]) .hero-body {
  margin-top: 2.2rem;
  font-size: 1rem;
  color: var(--text-2);
  max-width: 420px;
  line-height: 1.7;
}

/* ============================================================
   HOMEPAGE — apps grid + cards
   ============================================================ */

.apps { padding-bottom: 8rem; }

.apps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.app-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: relative;
  overflow: hidden;
  cursor: default;
  text-decoration: none;
  color: inherit;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards;
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.35s ease;
}
.app-card:nth-child(1) { animation-delay: 0.5s; }
.app-card:nth-child(2) { animation-delay: 0.65s; }
.app-card:nth-child(3) { animation-delay: 0.8s; }

.app-card:hover {
  background: var(--card-hover);
  border-color: var(--accent-border);
  transform: translateY(-5px);
}
a.app-card { cursor: pointer; }

/* Hover glow blob */
.app-card::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: -80px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  filter: blur(50px);
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.app-card:hover::after { opacity: 0.3; }

/* App icon */
.app-icon {
  width: 66px;
  height: 66px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
  transition: transform 0.3s ease;
}
.app-icon img {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 16px;
}
.app-card:hover .app-icon { transform: scale(1.04); }

/* Tonic / no-brand cards: neutral icon background */
.app-card:not([data-app]) .app-icon {
  background: var(--surface);
  border: 1px solid var(--border);
}

/* Card text */
.app-name {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.5rem;
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin-bottom: 0.22rem;
}
.app-category {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.85;
  color: var(--accent-text);
}
.app-desc {
  font-size: 0.875rem;
  color: var(--text-2);
  line-height: 1.7;
  flex: 1;
}
.card-rule {
  height: 1px;
  background: var(--border-2);
}

.app-platform {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
}
.apple-icon {
  opacity: 0.55;
  flex-shrink: 0;
  color: var(--text);
}

/* ============================================================
   APP PAGES — hero
   (Scoped via body[data-app] since app pages set data-app)
   ============================================================ */

body[data-app] .hero {
  padding: 2rem 0 1rem;
}
body[data-app] .hero-top {
  display: flex;
  align-items: flex-start;
  gap: 2.2rem;
  margin-bottom: 2.5rem;
}
body[data-app] .app-icon-lg {
  width: 88px;
  height: 88px;
  flex-shrink: 0;
}
body[data-app] .hero-meta { padding-top: 0.4rem; }
body[data-app] .hero-status { margin-bottom: 2rem; }

body[data-app] .hero-category {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 0.3rem;
}

body[data-app] .hero h1 {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}
body[data-app] .hero h1 span {
  color: var(--text-2);
  font-weight: 300;
  font-style: italic;
}
body[data-app] .hero-body {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 580px;
  line-height: 1.75;
}

/* ============================================================
   APP PAGES — features grid
   ============================================================ */

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  background: var(--border);
}
.feature {
  background: var(--card);
  padding: 1.75rem 1.6rem;
  transition: background 0.25s;
}
.feature:hover { background: var(--card-hover); }
.feature-icon {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  line-height: 1;
}
.feature h3 {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}
.feature p {
  font-size: 0.845rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ============================================================
   APP PAGES — steps
   ============================================================ */

.steps {
  display: flex;
  flex-direction: column;
}
.step {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1.5rem;
  align-items: flex-start;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-2);
}
.step:last-child { border-bottom: none; }
.step-num {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: 1.6rem;
  color: var(--accent);
  opacity: 0.55;
  line-height: 1.2;
  padding-top: 0.1rem;
}
.step-body h4 {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}
.step-body p {
  font-size: 0.85rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ============================================================
   APP PAGES — links section
   ============================================================ */

.links-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.link-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.4rem 1.6rem;
  text-decoration: none;
  color: var(--text);
  transition: background 0.25s, border-color 0.25s, transform 0.25s;
}
.link-card:hover {
  background: var(--card-hover);
  border-color: var(--accent-border);
  transform: translateY(-3px);
}
.link-card-left {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.link-label {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-3);
}
.link-title {
  font-family: 'Fraunces', serif;
  font-size: 1.05rem;
  font-weight: 400;
}
.link-arrow {
  color: var(--text-3);
  transition: color 0.2s, transform 0.2s;
  flex-shrink: 0;
}
.link-card:hover .link-arrow {
  color: var(--accent-text);
  transform: translate(3px, -3px);
}

/* ============================================================
   FOOTER
   ============================================================ */

footer {
  border-top: 1px solid var(--border-2);
  position: relative;
  z-index: 1;
}
body[data-app] footer { margin-top: 6rem; }

footer .wrap {
  padding-top: 1.8rem;
  padding-bottom: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-copy {
  font-size: 0.78rem;
  color: var(--text-3);
  display: flex;
  gap: 2rem;
  align-items: center;
}
.footer-link {
  color: var(--text-3);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-link:hover { color: var(--text-2); }

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 860px) {
  .apps-grid { grid-template-columns: 1fr 1fr; }
  .app-card:nth-child(3) { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  .features { grid-template-columns: 1fr; border-radius: 14px; }
  .links-grid { grid-template-columns: 1fr; }
  body[data-app] .hero-top { gap: 1.5rem; }
  body[data-app] .app-icon-lg { width: 72px; height: 72px; border-radius: 16px; }
}
@media (max-width: 580px) {
  .wrap { padding: 0 1.25rem; }
  .apps-grid { grid-template-columns: 1fr; }
  .app-card:nth-child(3) { grid-column: auto; }
  body:not([data-app]) .hero h1 { font-size: 2.6rem; }
  .header-tagline { display: none; }
  .wordmark-logo { height: 24px; }
  footer .wrap { flex-direction: column; gap: 0.5rem; align-items: flex-start; }
}
@media (max-width: 520px) {
  body[data-app] .hero h1 { font-size: 1.9rem; }
}
