/* SimpliXio landing page
   Design direction: Linear clarity + Apple-native calm + premium launch first impression.
*/

:root {
  color-scheme: dark;

  --bg: #07080c;
  --bg-elevated: #0c0e14;
  --surface: rgba(18, 21, 30, 0.86);
  --surface-soft: rgba(255, 255, 255, 0.035);
  --surface-strong: rgba(255, 255, 255, 0.075);

  --text: #f6f7fb;
  --muted: #aeb4c2;
  --quiet: #737b8d;

  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);

  --accent: #f6f7fb;
  --accent-text: #08090d;

  --blue: #7f95ff;
  --cyan: #7de9d2;

  --radius-xl: 34px;
  --radius-lg: 22px;
  --radius-md: 16px;

  --shadow-soft: 0 28px 90px rgba(0, 0, 0, 0.32);
  --shadow-strong: 0 44px 120px rgba(0, 0, 0, 0.44);

  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 18% 6%, rgba(127, 149, 255, 0.18), transparent 30rem),
    radial-gradient(circle at 78% 4%, rgba(125, 233, 210, 0.12), transparent 28rem),
    radial-gradient(circle at 50% 42%, rgba(255, 255, 255, 0.045), transparent 34rem),
    var(--bg);
  color: var(--text);
  font-family:
    ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Display",
    "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -3;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at center, black 18%, transparent 78%);
  pointer-events: none;
}

.ambient {
  position: fixed;
  z-index: -2;
  filter: blur(86px);
  pointer-events: none;
}

.ambient-one {
  top: -12rem;
  left: -10rem;
  width: 32rem;
  height: 32rem;
  background: rgba(127, 149, 255, 0.28);
}

.ambient-two {
  top: 6rem;
  right: -12rem;
  width: 30rem;
  height: 30rem;
  background: rgba(125, 233, 210, 0.18);
}

.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.14;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.12) 0 1px, transparent 1px),
    radial-gradient(circle at 70% 60%, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px);
  background-size: 5px 5px, 7px 7px;
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration: none;
}

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

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.03;
  letter-spacing: -0.052em;
}

h1 {
  max-width: 820px;
  font-size: clamp(4.2rem, 9vw, 8.2rem);
}

h2 {
  font-size: clamp(2.25rem, 5vw, 4.3rem);
}

h3 {
  font-size: 1.08rem;
  letter-spacing: -0.025em;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  width: min(100% - 32px, var(--max-width));
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
  padding: 20px 0;
  backdrop-filter: blur(22px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 780;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background:
    radial-gradient(circle at 30% 20%, #ffffff, #d9dfef 62%, #adb8d8);
  color: #07080c;
  font-weight: 920;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.7),
    0 12px 34px rgba(0, 0, 0, 0.26);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.93rem;
}

.site-nav a {
  transition: color 160ms ease;
}

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

.hero {
  width: min(100% - 32px, var(--max-width));
  min-height: calc(100vh - 84px);
  margin: 0 auto;
  padding: 56px 0 72px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 0.9fr);
  gap: 58px;
  align-items: center;
}

.hero-copy {
  display: grid;
  gap: 30px;
}

.eyebrow {
  color: var(--text);
  font-size: 0.76rem;
  font-weight: 790;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.hero-text {
  max-width: 710px;
  color: #dce1eb;
  font-size: clamp(1.18rem, 2vw, 1.52rem);
}

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

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0 22px;
  font-weight: 760;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease,
    color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.28);
}

.button-primary {
  background: var(--accent);
  color: var(--accent-text);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.045);
  color: var(--text);
}

.trust-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.trust-pills span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 14px;
  background: rgba(255, 255, 255, 0.035);
  color: #dde2ee;
  font-size: 0.91rem;
  font-weight: 660;
}

.microcopy {
  max-width: 650px;
  color: var(--quiet);
  font-size: 0.96rem;
}

.product-stage,
.framed,
.final-cta,
.outcome-strip article {
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(22, 25, 35, 0.88), rgba(10, 12, 18, 0.84));
  box-shadow: var(--shadow-strong);
}

.product-stage {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  padding: 18px;
}

.product-stage::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.1), transparent 28rem),
    linear-gradient(135deg, rgba(127, 149, 255, 0.08), transparent 34%);
  pointer-events: none;
}

.stage-topbar {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 4px 16px;
  color: var(--quiet);
  font-size: 0.9rem;
}

.window-dot {
  display: inline-flex;
  width: 9px;
  height: 9px;
  margin-right: 5px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
}

.product-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1fr);
  gap: 14px;
}

.input-panel,
.output-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.032);
  padding: 16px;
}

.panel-label {
  margin-bottom: 14px;
  color: #ecf0f8;
  font-size: 0.83rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.input-stack {
  display: grid;
  gap: 10px;
}

.input-stack article {
  border: 1px solid var(--line);
  border-radius: 15px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.032);
  color: var(--muted);
  font-size: 0.95rem;
}

.output-panel {
  display: grid;
  gap: 12px;
}

.priority-card {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 16px;
  background: rgba(255, 255, 255, 0.037);
}

.primary-card {
  border-color: var(--line-strong);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.085), rgba(255, 255, 255, 0.042));
}

.priority-index {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.09);
  color: var(--text);
  font-size: 0.84rem;
  font-weight: 870;
}

.priority-card h2 {
  margin-bottom: 8px;
  font-size: 1.08rem;
  letter-spacing: -0.025em;
}

.priority-card p {
  margin-bottom: 8px;
  font-size: 0.94rem;
}

.priority-card strong {
  color: var(--text);
  font-size: 0.91rem;
}

.ignored-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.032);
  color: var(--muted);
  font-size: 0.9rem;
}

.ignored-row strong {
  color: var(--text);
}

.section {
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
  padding: 92px 0;
}

.outcome-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding-top: 0;
}

.outcome-strip article {
  border-radius: var(--radius-lg);
  padding: 24px;
}

.outcome-strip span {
  display: block;
  margin-bottom: 34px;
  color: var(--quiet);
  font-size: 0.8rem;
  font-weight: 820;
}

.outcome-strip strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
  font-size: 1.05rem;
  letter-spacing: -0.025em;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1fr);
  gap: 44px;
  align-items: start;
}

.section-copy {
  display: grid;
  gap: 18px;
}

.loop-card {
  display: grid;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 26px;
  background: rgba(255, 255, 255, 0.032);
  box-shadow: var(--shadow-soft);
}

.loop-step span {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 780;
  letter-spacing: -0.025em;
}

.loop-line {
  width: 1px;
  height: 34px;
  margin: 14px 0 14px 12px;
  background: var(--line-strong);
}

.framed,
.final-cta {
  border-radius: var(--radius-xl);
  padding: 44px;
}

.section-heading {
  display: grid;
  max-width: 850px;
  gap: 16px;
  margin-bottom: 32px;
}

.feature-grid,
.audience-grid,
.trust-list,
.principle-grid {
  display: grid;
  gap: 14px;
}

.feature-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.audience-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.principle-grid,
.trust-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-card,
.audience-grid article,
.trust-list article,
.principle-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px;
  background: rgba(255, 255, 255, 0.032);
}

.feature-card h3,
.audience-grid h3,
.principle-grid h3 {
  margin-bottom: 10px;
}

.trust-list strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
}

.final-cta {
  display: grid;
  gap: 20px;
  text-align: center;
}

.final-cta h2,
.final-cta p {
  justify-self: center;
  max-width: 780px;
}

.signup-form {
  display: grid;
  width: min(100%, 700px);
  gap: 10px;
  justify-self: center;
  text-align: left;
}

.signup-form label {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 740;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

input {
  min-height: 54px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.055);
  color: var(--text);
  font: inherit;
  padding: 0 18px;
  outline: none;
}

input:focus {
  border-color: rgba(255, 255, 255, 0.34);
}

.form-note {
  color: var(--quiet);
  font-size: 0.85rem;
  text-align: center;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
  padding: 34px 0 50px;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

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

@media (max-width: 1080px) {
  .hero-inner,
  .split {
    grid-template-columns: 1fr;
  }

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

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  h1 {
    font-size: clamp(3.4rem, 17vw, 5.4rem);
  }

  .site-nav {
    display: none;
  }

  .hero,
  .section {
    padding: 64px 0;
  }

  .hero {
    min-height: auto;
  }

  .outcome-strip,
  .feature-grid,
  .audience-grid,
  .principle-grid,
  .trust-list {
    grid-template-columns: 1fr;
  }

  .framed,
  .final-cta {
    padding: 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .site-footer {
    display: grid;
    gap: 18px;
  }
}

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

  .button {
    transition: none;
  }

  .button:hover {
    transform: none;
  }
}