/* =============================
   Assistant.Lease - styles
   ============================= */

:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);
  --content-default: 1120px;
  --content-narrow: 720px;

  --font-display: 'Instrument Serif', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
}

:root,
[data-theme='light'] {
  --color-bg: #f8f7f3;
  --color-surface: #ffffff;
  --color-surface-2: #fbfaf6;
  --color-surface-offset: #f1eee7;
  --color-divider: #e2ddd2;
  --color-border: #d3cdc0;

  --color-text: #1c1a15;
  --color-text-muted: #6a6759;
  --color-text-faint: #a8a59a;

  --color-primary: #01696f;
  --color-primary-hover: #0c4e54;
  --color-primary-active: #0f3638;
  --color-primary-soft: #d8e4e2;

  --shadow-sm: 0 1px 2px rgba(28, 26, 21, 0.06);
  --shadow-md: 0 8px 24px rgba(28, 26, 21, 0.08);
  --shadow-lg: 0 24px 64px rgba(28, 26, 21, 0.12);
}

[data-theme='dark'] {
  --color-bg: #131310;
  --color-surface: #1a1a17;
  --color-surface-2: #1f1f1c;
  --color-surface-offset: #232320;
  --color-divider: #2b2b27;
  --color-border: #3a3a35;

  --color-text: #ebe9e3;
  --color-text-muted: #98948a;
  --color-text-faint: #5e5a52;

  --color-primary: #4f98a3;
  --color-primary-hover: #6caab4;
  --color-primary-active: #2a7a86;
  --color-primary-soft: #1f3739;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.6);
}

/* base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}
body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(
      ellipse 60% 40% at 50% 0%,
      var(--color-primary-soft) 0%,
      transparent 70%
    );
  background-attachment: fixed;
}
img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
a:hover {
  color: var(--color-primary-hover);
}
h1,
h2,
h3,
h4 {
  text-wrap: balance;
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.01em;
}
p {
  text-wrap: pretty;
  max-width: 64ch;
}
::selection {
  background: var(--color-primary-soft);
  color: var(--color-text);
}
button {
  cursor: pointer;
  background: none;
  border: none;
  font: inherit;
  color: inherit;
}

/* layout */
.container {
  width: 100%;
  max-width: var(--content-default);
  margin: 0 auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-10));
}
.container.narrow {
  max-width: var(--content-narrow);
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 80%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid color-mix(in oklab, var(--color-border) 50%, transparent);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-4);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand:hover {
  color: var(--color-text);
}
.brand-mark {
  color: var(--color-primary);
}
.brand-text {
  font-size: var(--text-base);
}
.brand-dot {
  color: var(--color-primary);
}
.primary-nav {
  display: flex;
  gap: var(--space-6);
}
.primary-nav a {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
}
.primary-nav a:hover {
  color: var(--color-text);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.theme-toggle {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: all var(--transition-interactive);
}
.theme-toggle:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
}

@media (max-width: 760px) {
  .primary-nav {
    display: none;
  }
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.005em;
  transition: all var(--transition-interactive);
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-ghost {
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* hero */
.hero {
  padding-block: clamp(var(--space-16), 10vw, var(--space-32))
    clamp(var(--space-12), 6vw, var(--space-20));
}
.hero-inner {
  text-align: center;
}
.eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--text-3xl);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-8);
}
.hero-sub {
  margin: 0 auto;
  max-width: 56ch;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-10);
}
.hero-cta {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-16);
}

.catchment {
  margin: 0 auto;
  max-width: 760px;
  color: var(--color-text);
}
.catchment svg {
  width: 100%;
  height: auto;
}
.catchment figcaption {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-align: center;
  max-width: 56ch;
  margin-inline: auto;
}
@keyframes subjectPulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.9;
  }
}
.subject-pulse {
  transform-origin: 0 0;
  animation: subjectPulse 3.4s ease-in-out infinite;
}
@media (prefers-reduced-motion: reduce) {
  .subject-pulse {
    animation: none;
  }
}

/* generic section */
.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  border-top: 1px solid color-mix(in oklab, var(--color-border) 40%, transparent);
}
.section-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--text-2xl);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
  max-width: 22ch;
}
.section-lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-bottom: var(--space-12);
}

/* steps (how it works) */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  list-style: none;
}
.step {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6) var(--space-6);
  position: relative;
  transition: all var(--transition-interactive);
}
.step:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.step-num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.step h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}
.step p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
}

/* week - timeline */
.section-week {
  background: var(--color-surface-offset);
}
.timeline {
  display: grid;
  gap: var(--space-6);
  margin-bottom: var(--space-10);
}
.t-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  display: grid;
  grid-template-columns: 130px 1fr;
  grid-template-rows: auto auto;
  column-gap: var(--space-6);
  row-gap: var(--space-2);
  align-items: start;
}
.t-card:hover {
  border-color: var(--color-primary);
}
.t-meta {
  grid-column: 1;
  grid-row: 1 / span 2;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-top: var(--space-1);
}
.t-card h3 {
  grid-column: 2;
  grid-row: 1;
}
.t-card p {
  grid-column: 2;
  grid-row: 2;
}
.t-day {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-primary);
}
.t-time {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}
.t-card h3 {
  font-size: var(--text-lg);
  margin-bottom: 0;
}
.t-card p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
}
.footnote {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  font-style: italic;
  max-width: 64ch;
}
@media (max-width: 640px) {
  .t-card {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    padding: var(--space-5);
  }
  .t-meta {
    grid-column: 1;
    grid-row: 1;
    flex-direction: row;
    align-items: baseline;
    gap: var(--space-3);
  }
  .t-card h3 {
    grid-column: 1;
    grid-row: 2;
  }
  .t-card p {
    grid-column: 1;
    grid-row: 3;
  }
}

/* moat / pillars */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8) var(--space-10);
}
.pillar {
  position: relative;
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
}
.pillar-num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.pillar h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}
.pillar p {
  color: var(--color-text-muted);
}

/* who */
.who-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
}
.who-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  transition: all var(--transition-interactive);
}
.who-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.who-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
  color: var(--color-primary);
}
.who-card p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
}

/* contact */
.section-contact {
  background:
    radial-gradient(
      ellipse at 50% 0%,
      var(--color-primary-soft) 0%,
      transparent 60%
    ),
    var(--color-surface-offset);
  text-align: center;
}
.section-contact .section-title,
.section-contact .section-lede {
  margin-inline: auto;
}
.section-contact .section-lede {
  margin-bottom: var(--space-10);
}
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  text-align: left;
  box-shadow: var(--shadow-md);
}
.contact-label {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}
.contact-value {
  font-size: var(--text-lg);
  font-weight: 600;
}
.contact-value a {
  color: var(--color-text);
}
.contact-value a:hover {
  color: var(--color-primary);
}
.contact-name {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}
@media (max-width: 600px) {
  .contact-card {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* footer */
.site-footer {
  padding-block: var(--space-12);
  border-top: 1px solid var(--color-divider);
  color: var(--color-text-muted);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.footer-brand {
  font-weight: 600;
  color: var(--color-text);
}
.footer-meta {
  font-size: var(--text-sm);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}