/* Purple Swan — styles.css */

:root {
  --background: #f5f0e8;
  --foreground: #1a1a1a;
  --muted: #ebe5da;
  --muted-foreground: #5a5550;
  --border: rgba(26, 26, 26, 0.12);
  --sidebar: #261032;
  --sidebar-foreground: #f5f0e8;
  --sidebar-muted-foreground: #cdb8c5;
  --accent: #4a2c5a;
  --accent-deep: #5d3573;
  --accent-foreground: #f5f0e8;

  --sidebar-width: 16rem;
  --content-padding: clamp(1.5rem, 6vw, 6rem);
}

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

html {
  font-size: 16px;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-feature-settings: "kern" 1, "calt" 1;
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

::selection {
  background: var(--accent);
  color: var(--accent-foreground);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}


/* Mobile top bar */

.mobile-bar {
  display: none;
  position: sticky;
  top: 0;
  z-index: 40;
  height: 3.5rem;
  background: linear-gradient(180deg, #2b1238 0%, #221028 100%);
  border-bottom: 1px solid rgba(245, 240, 232, 0.12);
  padding: 0 1.25rem;
  padding-left: max(1.25rem, env(safe-area-inset-left));
  padding-right: max(1.25rem, env(safe-area-inset-right));
  justify-content: space-between;
  align-items: center;
}

.mobile-bar .brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'IBM Plex Mono', 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--sidebar-foreground);
  text-decoration: none;
}

.mobile-bar .brand-mark {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.mobile-menu-toggle {
  font-family: 'IBM Plex Mono', 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sidebar-muted-foreground);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 3.5rem;
  left: 0;
  right: 0;
  z-index: 39;
  border-bottom: 1px solid rgba(245, 240, 232, 0.12);
  background: linear-gradient(180deg, #2b1238 0%, #221028 100%);
  box-shadow: 0 12px 24px rgba(26, 16, 40, 0.24);
  padding: 1.5rem 1.25rem;
}

.mobile-nav.open {
  display: block;
  animation: mobile-nav-in 0.18s ease;
}

/* Hold the page still while the menu is open */
body.menu-open {
  overflow: hidden;
}

/* Full-screen dim behind the open menu (real element .mobile-scrim) */
.mobile-scrim {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(26, 16, 40, 0.32);
  z-index: 38;
  pointer-events: none;
  animation: scrim-in 0.18s ease;
}

.mobile-scrim.open {
  display: block;
}

@keyframes scrim-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes mobile-nav-in {
  from { opacity: 0; transform: translateY(-0.5rem); }
  to   { opacity: 1; transform: translateY(0); }
}

.mobile-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav li {
  display: flex;
  gap: 1rem;
  font-family: 'IBM Plex Mono', 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.mobile-nav li:last-child {
  margin-bottom: 0;
}

.mobile-nav .nav-code {
  color: var(--sidebar-muted-foreground);
  opacity: 0.7;
}

.mobile-nav a {
  text-decoration: none;
  color: var(--sidebar-foreground);
  transition: color 0.2s ease;
}

.mobile-nav a:hover {
  color: var(--sidebar-muted-foreground);
}


/* Desktop sidebar */

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-width);
  background: linear-gradient(180deg, #2b1238 0%, #221028 100%);
  color: var(--sidebar-foreground);
  border-right: 1px solid var(--border);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 40;
}

.sidebar-brand {
  text-decoration: none;
  color: inherit;
  display: block;
}

.sidebar-brand-label {
  font-family: 'IBM Plex Mono', 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--sidebar-muted-foreground);
}

.sidebar-brand-unit {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-top: 0.625rem;
}

.sidebar-brand-mark {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.sidebar-brand-name {
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--sidebar-foreground);
  margin: 0;
}

.sidebar-brand-rule {
  margin-top: 0.625rem;
  width: 2.5rem;
  height: 1px;
  background-color: var(--accent);
}

.sidebar-nav {
  margin-top: 4rem;
}

.sidebar-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar-nav li {
  margin-bottom: 1.25rem;
}

.sidebar-nav li:last-child {
  margin-bottom: 0;
}

.sidebar-nav a {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  font-family: 'IBM Plex Mono', 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--sidebar-muted-foreground);
  transition: color 0.2s ease;
}

.sidebar-nav a:hover {
  color: var(--sidebar-foreground);
}

.sidebar-nav .nav-code {
  color: var(--sidebar-muted-foreground);
  opacity: 0.7;
}

.sidebar-nav .nav-label {
  position: relative;
}

.sidebar-nav a.active {
  color: var(--sidebar-foreground);
}

.sidebar-nav a.active .nav-label::before {
  content: "";
  position: absolute;
  left: -0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 0.25rem;
  height: 0.25rem;
  border-radius: 50%;
  background-color: var(--accent);
}

.sidebar-meta {
  font-family: 'IBM Plex Mono', 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--sidebar-muted-foreground);
  line-height: 1.8;
}


/* Main content area */

.main {
  margin-left: var(--sidebar-width);
}

.section {
  padding: 6rem var(--content-padding) 6rem;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.section-label {
  font-family: 'IBM Plex Mono', 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted-foreground);
  margin: 0;
}


/* Hero */

.hero {
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.08;
  mix-blend-mode: multiply;
  pointer-events: none;
  user-select: none;
}

.hero-content {
  position: relative;
  max-width: 56rem;
}

.tagline {
  margin: 2.5rem 0 0;
  font-size: 1.875rem;
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.03em;
  text-wrap: balance;
  color: var(--foreground);
}

.intro-body {
  margin: 3rem 0 0;
  max-width: 36rem;
  font-size: 1rem;
  color: var(--muted-foreground);
  line-height: 1.7;
}


/* Practice section */

.practice-intro {
  margin: 2.5rem 0 0;
  max-width: 36rem;
  font-size: 1rem;
  color: var(--muted-foreground);
  line-height: 1.7;
}

.practice-list {
  margin: 2.5rem 0 0;
  list-style: none;
  padding: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.practice-list li {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 3rem;
  padding: 2.25rem 0;
  border-bottom: 1px solid var(--border);
}

.practice-list li:last-child {
  border-bottom: none;
}

.practice-code {
  font-family: 'IBM Plex Mono', 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted-foreground);
  padding-top: 0.25rem;
}

.practice-outcome {
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--foreground);
  margin: 0;
  max-width: 36rem;
}

.practice-method {
  margin: 0.75rem 0 0;
  font-size: 1rem;
  color: var(--muted-foreground);
  line-height: 1.65;
  max-width: 36rem;
}


/* Closing line */

.closing {
  padding: 4rem var(--content-padding) 5rem;
  border-bottom: 1px solid var(--border);
}

.closing-line {
  margin: 0;
  max-width: 48rem;
  font-size: 1.5rem;
  font-weight: 300;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--foreground);
  position: relative;
  padding-top: 2rem;
}

.closing-line::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3rem;
  height: 2px;
  background-color: var(--accent-deep);
}


/* Contact section */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: end;
  margin-top: 2.5rem;
}

.contact-intro {
  max-width: 28rem;
  margin: 0 0 2rem;
  color: var(--muted-foreground);
  font-size: 1rem;
  line-height: 1.7;
}

.contact-link {
  display: inline-block;
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--foreground);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.25rem;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.contact-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.contact-meta {
  font-family: 'IBM Plex Mono', 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted-foreground);
  text-align: right;
  line-height: 2;
}

/* On desktop the sidebar already carries the location; avoid the echo */
.contact-location {
  display: none;
}


/* Footer */

.footer {
  padding: 2.5rem var(--content-padding);
  display: flex;
  justify-content: space-between;
  font-family: 'IBM Plex Mono', 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted-foreground);
}


/* About page */

.about-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4rem;
  align-items: start;
  max-width: 56rem;
  margin-top: 2.5rem;
}

.about-photo {
  width: 12rem;
  height: 15rem;
  object-fit: cover;
  background-color: var(--muted);
}

.about-bio {
  max-width: 36rem;
}

.about-bio p {
  margin: 0 0 1.25em;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--foreground);
}

.about-bio p:last-child {
  margin-bottom: 0;
}


/* Larger screens */

@media (min-width: 1024px) {
  .section {
    padding: 8rem var(--content-padding) 8rem;
  }

  .tagline {
    font-size: 2.5rem;
  }

  .closing-line {
    font-size: 2rem;
  }

  .contact-link {
    font-size: 1.5rem;
  }
}


/* Mobile */

@media (max-width: 767px) {
  .mobile-bar {
    display: flex;
  }

  .sidebar {
    display: none;
  }

  .main {
    margin-left: 0;
  }

  .section {
    padding: 3.5rem var(--content-padding);
    scroll-margin-top: 4.5rem;
  }

  .tagline {
    font-size: 1.5rem;
  }

  .practice-list li {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .practice-code {
    padding-top: 0;
  }

  .closing-line {
    font-size: 1.25rem;
  }

  .closing {
    padding: 3rem var(--content-padding);
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contact-link {
    font-size: 1.125rem;
  }

  .contact-meta {
    text-align: left;
  }

  /* Sidebar is hidden on mobile, so the contact block carries the location */
  .contact-location {
    display: block;
  }

  .footer {
    padding: 2rem var(--content-padding);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}


/* Print */

@media print {
  .sidebar, .mobile-bar, .mobile-nav {
    display: none;
  }

  .main {
    margin-left: 0;
  }

  body {
    background: #fff;
  }

  .hero-bg {
    display: none;
  }
}