/* AIdea landing page. Colors follow the AIdea app (neutral shadcn tokens, violet/purple accent).
   Logical properties (margin-inline, padding-inline, text-align: start) keep an Arabic RTL version cheap to add. */

:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --surface: #f5f5f7;
  --card: #ffffff;
  --text: #0a0a0a;
  --text-soft: #404040;
  --muted: #666666;
  --border: #e5e5e5;
  --primary: #171717;
  --on-primary: #fafafa;
  --accent: #7c3aed;
  --accent-soft: #f3efff;
  --grad-a: #8b5cf6;
  --grad-b: #a855f7;
  --ring: #8b5cf6;
  --glow: rgb(139 92 246 / 0.18);
  --shadow-sm: 0 1px 3px rgb(0 0 0 / 0.08), 0 1px 2px -1px rgb(0 0 0 / 0.08);
  --shadow-lg: 0 1px 3px rgb(0 0 0 / 0.06), 0 24px 48px -24px rgb(15 15 30 / 0.28);
  --radius: 0.5rem;
  --radius-lg: 0.875rem;
  --radius-xl: 1.25rem;
  --container: 72rem;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif,
    "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a;
    --surface: #111113;
    --card: #171717;
    --text: #fafafa;
    --text-soft: #d4d4d4;
    --muted: #a3a3a3;
    --border: #262626;
    --primary: #fafafa;
    --on-primary: #171717;
    --accent: #a78bfa;
    --accent-soft: rgb(139 92 246 / 0.16);
    --glow: rgb(139 92 246 / 0.22);
    --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.5);
    --shadow-lg: 0 1px 2px rgb(0 0 0 / 0.5), 0 24px 48px -24px rgb(0 0 0 / 0.8);
  }
}

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

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

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
p,
ul,
ol {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

svg {
  display: block;
}

:focus-visible {
  outline: 3px solid var(--ring);
  outline-offset: 2px;
  border-radius: 4px;
}

[id] {
  scroll-margin-top: 5rem;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

@media (min-width: 48rem) {
  .container {
    padding-inline: 2rem;
  }
}

.skip-link {
  position: absolute;
  inset-inline-start: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  background: var(--primary);
  color: var(--on-primary);
  font-weight: 600;
  text-decoration: none;
}

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

/* Wordmark */

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--text);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.wordmark-mark {
  width: 1.75rem;
  height: 1.75rem;
  flex: none;
}

.ai {
  background: linear-gradient(90deg, var(--grad-a), var(--grad-b));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}

.site-nav {
  display: none;
}

.site-nav a {
  color: var(--text-soft);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--text);
}

@media (min-width: 48rem) {
  .site-nav {
    display: flex;
    gap: 1.75rem;
  }
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.65rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 0.625rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
}

.btn-primary:hover {
  background: color-mix(in srgb, var(--primary) 86%, var(--grad-a));
}

.btn-secondary {
  border-color: var(--border);
  background: var(--card);
  color: var(--text);
}

.btn-secondary:hover {
  border-color: color-mix(in srgb, var(--border) 50%, var(--text));
}

.btn-sm {
  min-height: 2.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.9375rem;
}

.btn svg {
  width: 1.125rem;
  height: 1.125rem;
}

/* Hero */

.hero {
  position: relative;
  overflow: hidden;
  padding-block: 3.5rem 4rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: -12rem;
  z-index: -1;
  height: 40rem;
  background: radial-gradient(ellipse 60% 50% at 50% 50%, var(--glow), transparent 70%);
}

.hero-copy {
  max-width: 46rem;
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  padding: 0.3rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--text-soft);
  font-size: 0.875rem;
  font-weight: 500;
}

.eyebrow-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--grad-a), var(--grad-b));
}

.hero h1 {
  font-size: clamp(2.25rem, 1.4rem + 4.2vw, 4rem);
  font-weight: 750;
  line-height: 1.05;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.hero-lead {
  max-width: 38rem;
  margin: 1.25rem auto 0;
  color: var(--text-soft);
  font-size: clamp(1.0625rem, 1rem + 0.35vw, 1.25rem);
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2rem;
}

.hero-note {
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 0.875rem;
}

/* Product illustration */

.mock-wrap {
  max-width: 64rem;
  margin: 3.5rem auto 0;
}

.mock {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--card);
  box-shadow: var(--shadow-lg);
  font-size: 0.8125rem;
  line-height: 1.45;
  text-align: start;
}

.mock-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.mock-bar > span {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--border);
}

.mock-bar strong {
  margin-inline-start: 0.6rem;
  font-weight: 600;
  color: var(--text-soft);
}

.mock-body {
  display: grid;
  grid-template-columns: 1fr;
}

.mock-side {
  display: none;
  padding: 1rem;
  border-inline-end: 1px solid var(--border);
  background: var(--surface);
}

.mock-label {
  margin-bottom: 0.6rem;
  color: var(--muted);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.mock-steps li {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 0.6rem;
  border-radius: 0.5rem;
  color: var(--text-soft);
}

.mock-steps li + li {
  margin-top: 0.15rem;
}

.mock-steps li::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  flex: none;
  border: 1.5px solid var(--muted);
  border-radius: 50%;
}

.mock-steps .done::before {
  border-color: var(--accent);
  background: var(--accent);
}

.mock-steps .active {
  background: linear-gradient(90deg, var(--grad-a), var(--grad-b));
  color: #ffffff;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.mock-steps .active::before {
  border-color: #ffffff;
  background: #ffffff;
}

.mock-main {
  padding: 1.25rem;
}

.mock-kicker {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
}

.mock-title {
  margin-top: 0.15rem;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.mock-sub {
  margin-top: 0.2rem;
  color: var(--muted);
}

.mock-card {
  margin-top: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.mock-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.4rem 0.75rem;
  padding: 0.75rem 0.9rem;
}

.mock-row + .mock-row {
  border-top: 1px solid var(--border);
}

.mock-row-name {
  font-weight: 600;
}

.mock-meter {
  grid-column: 1 / -1;
  height: 0.4rem;
  border-radius: 999px;
  background: var(--surface);
}

.mock-meter i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--grad-a), var(--grad-b));
}

.w-80 {
  width: 80%;
}

.w-60 {
  width: 60%;
}

.w-35 {
  width: 35%;
}

.chip {
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-soft);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.chip-strong {
  background: var(--accent-soft);
  color: var(--accent);
}

.mock-sources {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.9rem;
  color: var(--muted);
  font-size: 0.75rem;
}

.mock-sources span {
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  color: var(--text-soft);
}

.mock-chat {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.25rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.mock-chat-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.mock-chat-head i {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--grad-a), var(--grad-b));
}

.bubble {
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 0.875rem;
  border-start-start-radius: 0.25rem;
  background: var(--card);
}

.bubble-user {
  align-self: flex-end;
  max-width: 85%;
  border-color: transparent;
  border-radius: 0.875rem;
  border-start-end-radius: 0.25rem;
  background: var(--primary);
  color: var(--on-primary);
}

.suggest {
  padding: 0.75rem 0.85rem;
  border: 1px dashed color-mix(in srgb, var(--accent) 55%, var(--border));
  border-radius: 0.875rem;
  background: var(--card);
}

.suggest-label {
  color: var(--accent);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.suggest p {
  margin-top: 0.2rem;
  font-weight: 600;
}

.suggest-actions {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.6rem;
}

.suggest-actions span {
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.suggest-actions .accept {
  border-color: transparent;
  background: var(--primary);
  color: var(--on-primary);
}

.mock-caption {
  margin-top: 0.85rem;
  color: var(--muted);
  font-size: 0.8125rem;
  text-align: center;
}

@media (min-width: 40rem) {
  .mock-body {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }

  .mock-chat {
    border-top: 0;
    border-inline-start: 1px solid var(--border);
  }
}

@media (min-width: 60rem) {
  .mock-body {
    grid-template-columns: 13rem minmax(0, 1.4fr) minmax(0, 1fr);
  }

  .mock-side {
    display: block;
  }
}

/* Sections */

.section {
  padding-block: 4.5rem;
}

.section-alt {
  border-block: 1px solid var(--border);
  background: var(--surface);
}

.section-flush-top {
  padding-top: 0;
}

.section-head {
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.kicker {
  margin-bottom: 0.6rem;
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.section h2 {
  font-size: clamp(1.75rem, 1.3rem + 2vw, 2.5rem);
  font-weight: 750;
  line-height: 1.12;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.section-lead {
  margin-top: 0.9rem;
  color: var(--text-soft);
  font-size: 1.0625rem;
  text-wrap: pretty;
}

.icon {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  flex: none;
  border-radius: 0.625rem;
  background: var(--accent-soft);
  color: var(--accent);
}

.icon svg {
  width: 1.3rem;
  height: 1.3rem;
}

/* Pillars */

.pillars {
  display: grid;
  gap: 1rem;
}

.pillar {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}

.pillar h3 {
  margin-top: 1rem;
  font-size: 1.125rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.pillar p {
  margin-top: 0.4rem;
  color: var(--text-soft);
}

@media (min-width: 48rem) {
  .pillars {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

/* Journey */

.journey {
  display: grid;
  gap: 1rem;
  counter-reset: stage;
}

.stage {
  position: relative;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--card);
}

.stage-num {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--grad-a), var(--grad-b));
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 700;
}

.stage h3 {
  margin-top: 0.9rem;
  font-size: 1.125rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.stage p {
  margin-top: 0.4rem;
  color: var(--text-soft);
}

.stage-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 1rem;
}

.stage-steps li {
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 0.8125rem;
  font-weight: 500;
}

@media (min-width: 48rem) {
  .journey {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
}

@media (min-width: 64rem) {
  .journey {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Features */

.features {
  display: grid;
  gap: 1rem;
}

.feature {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--card);
}

.feature h3 {
  font-size: 1rem;
  font-weight: 650;
}

.feature p {
  margin-top: 0.3rem;
  color: var(--text-soft);
  font-size: 0.9375rem;
}

@media (min-width: 40rem) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 64rem) {
  .features {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

/* Audience */

.audience {
  display: grid;
  gap: 1rem;
}

.audience-card {
  padding: 1.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}

.audience-card h3 {
  margin-top: 1rem;
  font-size: 1.25rem;
  font-weight: 650;
  letter-spacing: -0.015em;
}

.audience-card p {
  margin-top: 0.5rem;
  color: var(--text-soft);
}

@media (min-width: 48rem) {
  .audience {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
}

/* Call to action */

.cta {
  position: relative;
  overflow: hidden;
  padding: 2.5rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--card);
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: radial-gradient(ellipse 70% 80% at 50% 0%, var(--glow), transparent 70%);
}

.cta > * {
  position: relative;
}

.cta h2 {
  max-width: 32rem;
  margin-inline: auto;
}

.cta .section-lead {
  max-width: 34rem;
  margin-inline: auto;
}

.cta .hero-actions {
  margin-top: 1.75rem;
}

.cta-address {
  margin-top: 1.25rem;
  color: var(--text-soft);
  font-size: 1rem;
}

.cta-address a {
  font-weight: 600;
  user-select: all;
}

.cta-privacy {
  max-width: 34rem;
  margin: 1.5rem auto 0;
  color: var(--muted);
  font-size: 0.875rem;
}

@media (min-width: 48rem) {
  .cta {
    padding: 4rem 3rem;
  }
}

/* Footer */

.site-footer {
  padding-block: 3rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.875rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
}

.footer-grid h2 {
  margin-bottom: 0.5rem;
  color: var(--text);
  font-size: 0.9375rem;
  font-weight: 650;
}

.footer-grid p + p {
  margin-top: 0.5rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin-top: 1rem;
}

.footer-links a {
  color: var(--text-soft);
}

@media (min-width: 48rem) {
  .footer-grid {
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
  }
}

/* 404 page */

.notfound {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 4rem);
  padding-block: 4rem;
  text-align: center;
}

.notfound h1 {
  font-size: clamp(2rem, 1.5rem + 2vw, 3rem);
  font-weight: 750;
  letter-spacing: -0.03em;
}

.notfound p {
  margin: 0.75rem 0 1.75rem;
  color: var(--text-soft);
}