/* Shared styles for the AI Helper pages. Colours mirror Theme.swift in the app. */

:root {
  --orange: #ff9433;
  --pink: #f5548c;
  --purple: #9e52ed;
  --indigo: #5c6bf5;
  --blue: #339ef2;
  --teal: #1fccb3;

  --brand-gradient: linear-gradient(135deg, var(--pink), var(--purple), var(--indigo), var(--blue), var(--teal));
  --cta-gradient: linear-gradient(90deg, var(--pink), var(--purple), var(--indigo));
  --headline-gradient: linear-gradient(90deg, var(--indigo), var(--purple) 55%, var(--pink));

  --bg: #ffffff;
  --bg-secondary: #f2f2f7;
  --card: rgba(255, 255, 255, 0.82);
  --card-border: rgba(60, 60, 67, 0.1);
  --text: #1c1c1e;
  --text-secondary: rgba(60, 60, 67, 0.72);
  --text-tertiary: rgba(60, 60, 67, 0.45);
  --link: var(--indigo);
  --wash-top: rgba(245, 84, 140, 0.16);
  --wash-mid: rgba(158, 82, 237, 0.12);
  --wash-side: rgba(92, 107, 245, 0.14);
  --shadow: 0 10px 30px rgba(158, 82, 237, 0.12);

  --radius-card: 24px;
  --radius-row: 14px;
  --content-width: 760px;
  --wide-width: 1080px;

  --font-text: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-rounded: ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --bg-secondary: #1c1c1e;
    --card: rgba(28, 28, 30, 0.82);
    --card-border: rgba(235, 235, 245, 0.1);
    --text: #f2f2f7;
    --text-secondary: rgba(235, 235, 245, 0.68);
    --text-tertiary: rgba(235, 235, 245, 0.4);
    --link: #8f9bff;
    --wash-top: rgba(245, 84, 140, 0.14);
    --wash-mid: rgba(158, 82, 237, 0.2);
    --wash-side: rgba(92, 107, 245, 0.16);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  }
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-text);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(900px 520px at 12% -8%, var(--wash-top), transparent 70%),
    radial-gradient(900px 600px at 95% 8%, var(--wash-side), transparent 70%),
    linear-gradient(180deg, var(--wash-mid), transparent 620px);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: var(--link);
  text-decoration: none;
  font-weight: 500;
}

a:hover {
  text-decoration: underline;
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--indigo);
  outline-offset: 3px;
  border-radius: 6px;
}

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

/* Header and footer */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border-bottom: 0.5px solid var(--card-border);
}

.site-header .inner {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-family: var(--font-rounded);
  font-weight: 700;
  font-size: 19px;
}

.brand:hover {
  text-decoration: none;
}

.brand img {
  width: 30px;
  height: auto;
}

.site-nav {
  display: flex;
  gap: 4px;
  font-size: 15px;
}

.site-nav a {
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 999px;
}

.site-nav a:hover {
  text-decoration: none;
  color: var(--text);
  background: var(--bg-secondary);
}

.site-nav a[aria-current="page"] {
  color: var(--text);
  background: var(--bg-secondary);
}

.site-footer {
  max-width: var(--wide-width);
  margin: 64px auto 0;
  padding: 28px 16px 48px;
  border-top: 0.5px solid var(--card-border);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  font-size: 14px;
  color: var(--text-tertiary);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.site-footer a {
  color: var(--text-secondary);
}

/* Reading pages (privacy, support) */

.page {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 48px 16px 0;
}

.page-hero {
  text-align: center;
  margin-bottom: 40px;
}

.page-hero .mascot {
  width: 76px;
  margin: 0 auto 18px;
  display: block;
  filter: drop-shadow(0 12px 28px rgba(158, 82, 237, 0.35));
}

h1,
h2,
h3 {
  font-family: var(--font-rounded);
  line-height: 1.2;
  color: var(--text);
}

h1 {
  font-size: clamp(34px, 6vw, 46px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 44px 0 12px;
  scroll-margin-top: 80px;
}

h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 24px 0 6px;
}

.gradient-text {
  background: var(--headline-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  font-size: 19px;
  color: var(--text-secondary);
  margin: 0 auto;
  max-width: 600px;
}

.meta {
  margin-top: 14px;
  font-size: 14px;
  color: var(--text-tertiary);
}

p {
  margin: 0 0 14px;
}

ul,
ol {
  margin: 0 0 14px;
  padding-left: 22px;
}

li {
  margin-bottom: 6px;
}

li::marker {
  color: var(--purple);
}

strong {
  font-weight: 600;
}

.card {
  background: var(--card);
  border: 0.5px solid var(--card-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow);
  padding: 22px 24px;
  margin: 20px 0;
}

.card > :last-child {
  margin-bottom: 0;
}

.card h2:first-child,
.card h3:first-child {
  margin-top: 0;
}

.callout {
  border-radius: var(--radius-row);
  padding: 16px 18px;
  margin: 20px 0;
  background: color-mix(in srgb, var(--purple) 10%, transparent);
  border: 0.5px solid color-mix(in srgb, var(--purple) 30%, transparent);
}

.callout > :last-child {
  margin-bottom: 0;
}

/* Feature rows, as on the paywall */

.feature-list {
  display: grid;
  gap: 16px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin: 0;
}

.feature-list .title {
  display: block;
  font-weight: 600;
}

.feature-list .subtitle {
  display: block;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.45;
}

.icon-tile {
  flex: none;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  color: #fff;
}

.icon-tile svg {
  width: 19px;
  height: 19px;
}

.tile-orange { background: linear-gradient(180deg, #ffa95c, var(--orange)); }
.tile-pink { background: linear-gradient(180deg, #f8789f, var(--pink)); }
.tile-purple { background: linear-gradient(180deg, #b475f1, var(--purple)); }
.tile-indigo { background: linear-gradient(180deg, #7d89f7, var(--indigo)); }
.tile-blue { background: linear-gradient(180deg, #62b4f5, var(--blue)); }
.tile-teal { background: linear-gradient(180deg, #4dd8c4, var(--teal)); }

/* Table of contents */

.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.toc li {
  margin: 0;
}

.toc a {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--card);
  border: 0.5px solid var(--card-border);
  color: var(--text-secondary);
  font-size: 14px;
}

.toc a:hover {
  color: var(--text);
  text-decoration: none;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.chips li {
  margin: 0;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--card);
  border: 0.5px solid var(--card-border);
  color: var(--text-secondary);
  font-size: 14px;
}

@media (max-width: 860px) {
  .chips {
    justify-content: center;
  }

  .split > div {
    text-align: center;
  }
}

/* FAQ */

.faq {
  display: grid;
  gap: 10px;
}

.faq details {
  background: var(--card);
  border: 0.5px solid var(--card-border);
  border-radius: var(--radius-row);
  padding: 0 18px;
}

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 15px 28px 15px 0;
  font-weight: 600;
  position: relative;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "";
  position: absolute;
  right: 4px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--text-tertiary);
  border-bottom: 2px solid var(--text-tertiary);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.2s ease;
}

.faq details[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.faq details > :not(summary) {
  color: var(--text-secondary);
}

.faq details > :last-child {
  padding-bottom: 14px;
  margin-bottom: 0;
}

/* Buttons */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 17px;
  color: #fff;
  background: var(--cta-gradient);
  box-shadow: 0 8px 22px rgba(158, 82, 237, 0.35);
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.button:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.button:active {
  transform: scale(0.97);
  opacity: 0.9;
}

.button.secondary {
  color: var(--text);
  background: var(--card);
  border: 0.5px solid var(--card-border);
  box-shadow: none;
}

.contact-card {
  text-align: center;
  padding: 30px 24px;
}

.contact-card p {
  color: var(--text-secondary);
}

/* Marketing page */

.wide {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 0 16px;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
  padding: 56px 0 24px;
}

.hero h1 {
  font-size: clamp(42px, 7vw, 72px);
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.hero .lead {
  margin: 0 0 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.hero-note {
  margin-top: 14px;
  font-size: 14px;
  color: var(--text-tertiary);
}

.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 10% 5%;
  background: var(--brand-gradient);
  filter: blur(70px);
  opacity: 0.35;
  border-radius: 50%;
}

.hero-visual img {
  position: relative;
  width: min(360px, 80%);
  border-radius: 28px;
}

.section {
  padding: 56px 0 0;
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 32px;
}

.section-head h2 {
  font-size: clamp(28px, 4.5vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-grid .card {
  margin: 0;
}

.feature-grid h3 {
  margin: 14px 0 6px;
}

.feature-grid p {
  color: var(--text-secondary);
  font-size: 15px;
}

.gallery {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 8px 16px 24px;
  margin: 0 -16px;
  scrollbar-width: thin;
}

.gallery img {
  flex: none;
  width: 250px;
  border-radius: 22px;
  scroll-snap-align: center;
  box-shadow: var(--shadow);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.split img {
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.pricing {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
}

.pricing .feature-list {
  text-align: left;
  margin: 22px 0 24px;
}

.pricing .fine {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 14px;
}

.cta-band {
  margin-top: 64px;
  border-radius: 32px;
  padding: 48px 24px;
  text-align: center;
  color: #fff;
  background: var(--brand-gradient);
  box-shadow: 0 18px 40px rgba(158, 82, 237, 0.3);
}

.cta-band h2 {
  color: #fff;
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 800;
  margin: 18px 0 8px;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 0;
}

.cta-band .mascot-white {
  width: 72px;
}

.cta-band .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 24px;
}

.button.light {
  color: var(--purple);
  background: #fff;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.15);
}

.button.outline {
  color: #fff;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: none;
}

@media (max-width: 860px) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    text-align: center;
    padding-top: 36px;
  }

  .hero .lead {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

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

@media (max-width: 560px) {
  body {
    font-size: 16px;
  }

  .site-nav a {
    padding: 6px 8px;
  }

  .brand span {
    display: none;
  }

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

  .card {
    padding: 18px;
  }

  .gallery img {
    width: 210px;
  }
}

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

  .button,
  .faq summary::after {
    transition: none;
  }
}