/* Shared layout for portfolio + project pages */
@import url('tokens.css');

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

html {
  scroll-behavior: smooth;
}

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

body.site-body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 1000;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: var(--space-md);
}

/* ----- Site header ----- */
.site-header {
  position: fixed;
  top: var(--space-md);
  left: var(--space-md);
  right: var(--space-md);
  z-index: 100;
  height: var(--header-height);
  background: rgba(24, 24, 27, 0.85);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(var(--nav-blur));
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  gap: var(--space-md);
}

.site-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  cursor: pointer;
}

.site-brand__dot {
  color: var(--color-accent);
}

.site-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-card);
  color: var(--color-text);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.site-nav-toggle:hover {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
}

.site-nav-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
  cursor: pointer;
}

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

.site-nav a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 4px;
}

.site-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.site-btn--primary {
  background: var(--color-accent);
  color: #fff;
}

.site-btn--primary:hover {
  background: var(--color-accent-hover);
}

.site-btn--ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.site-btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-hover);
}

/* ----- Main content shell ----- */
body.site-body main.site-main {
  /* !important beats Bootstrap utilities (e.g. .py-5) on project pages */
  padding-top: calc(var(--header-offset) + var(--space-2xl)) !important;
  padding-bottom: var(--space-3xl) !important;
  min-height: 100vh;
}

.site-container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.site-page-header {
  scroll-margin-top: var(--header-offset);
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.site-page-header h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.site-page-header .lead,
.site-page-header p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.site-page-header a {
  color: var(--color-highlight);
}

.site-page-header a:hover {
  color: var(--color-accent-hover);
}

/* ----- Cards & sections ----- */
.site-section {
  margin-bottom: var(--space-2xl);
}

.site-section h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-accent-soft);
}

.site-section h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--color-highlight);
  margin: var(--space-lg) 0 var(--space-md);
}

.site-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
}

.site-card + .site-card {
  margin-top: var(--space-lg);
}

.site-card img,
.site-section img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.site-card .img-caption,
.text-muted {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  text-align: center;
  margin-top: var(--space-sm);
}

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

.header-link:hover {
  text-decoration: underline;
}

/* Video embeds */
.video-embed {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: var(--space-lg) auto;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ----- Site footer ----- */
.site-footer {
  margin-top: var(--space-3xl);
  padding: var(--space-2xl) var(--space-lg);
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.site-footer a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition);
  cursor: pointer;
}

.site-footer a:hover {
  color: var(--color-highlight);
}

.site-footer__meta {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0;
}

/* Bootstrap overrides on project pages */
body.site-body .card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

body.site-body .card h2,
body.site-body .card h3,
body.site-body .card h4,
body.site-body .card h5 {
  color: var(--color-text);
}

body.site-body .text-muted {
  color: var(--color-text-muted) !important;
}

body.site-body .btn-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

body.site-body .btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

body.site-body u {
  text-decoration: none;
  border-bottom: 2px solid var(--color-accent-soft);
}

/* In-page TOC (Urban Scooters) */
.page-toc {
  position: sticky;
  top: calc(var(--header-height) + var(--space-md) * 2);
  z-index: 50;
  max-width: var(--max-width);
  margin: 0 auto var(--space-lg);
  padding: 0 var(--space-md);
}

.page-toc ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  list-style: none;
  margin: 0;
  padding: var(--space-sm);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.page-toc a {
  display: block;
  padding: 0.35rem 0.75rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}

.page-toc a:hover {
  color: var(--color-text);
  background: var(--color-accent-soft);
}

.page-toc a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Mobile: horizontal scroll strip (avoids tall stacked TOC) */
@media (max-width: 768px) {
  .page-toc {
    top: calc(var(--header-height) + var(--space-sm));
    margin-bottom: var(--space-md);
    padding: 0 var(--space-sm);
  }

  .page-toc ul {
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .page-toc ul::-webkit-scrollbar {
    display: none;
    width: 0;
    height: 0;
  }

  .page-toc li {
    flex: 0 0 auto;
    scroll-snap-align: start;
    margin: 0;
  }

  .page-toc a {
    white-space: nowrap;
    padding: 0.45rem 0.85rem;
    font-size: 0.8125rem;
  }
}

/* Mobile menu — match homepage overlay (900px breakpoint) */
@media (max-width: 900px) {
  .site-header {
    top: var(--space-sm);
    left: var(--space-sm);
    right: var(--space-sm);
  }

  .site-nav-toggle {
    display: flex;
    border-color: rgba(255, 64, 129, 0.45);
    z-index: 101;
  }

  body.site-body .site-brand__dot {
    color: #ff4081;
  }

  body.mobile-menu-open::before {
    content: '';
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 98;
    pointer-events: none;
  }

  /* Nav is moved to <body> via site.js so fixed positioning is not trapped in the header */
  .site-nav {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    max-width: 100%;
    min-height: 450px;
    height: 90vh;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0;
    padding: 2rem 1.5rem;
    margin: 0;
    background: rgba(24, 24, 27, 0.96);
    backdrop-filter: blur(16px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    z-index: 99;
    transition: left 0.3s ease;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .site-nav.is-open {
    left: 0;
  }

  .site-nav a {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--color-text);
    padding: 0.65rem 1.25rem;
    margin: 0.15rem 0;
    text-align: center;
    border-radius: var(--radius-sm);
  }

  .site-nav a:hover,
  .site-nav a:focus-visible {
    color: #ff4081;
    background: rgba(255, 64, 129, 0.12);
    outline: none;
  }

  .site-nav .site-btn--primary {
    margin-top: 1.25rem;
    padding: 0.75rem 1.75rem;
    font-size: 1rem;
    background: #ff4081;
    border-color: #ff4081;
  }

  .site-nav .site-btn--primary:hover {
    background: #ff5c94;
    border-color: #ff5c94;
  }
}