/*
 * layout.css
 * ─────────────────────────────────────────────────────────────
 * Base reset, body defaults, and all section/grid layouts.
 * No colors or component styles here — only structure.
 */

/* ── Base reset ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  hanging-punctuation: first last;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body, sans-serif);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-text);
  background:
    radial-gradient(
      circle at top right,
      rgba(70, 214, 201, 0.09),
      transparent 24%
    ),
    linear-gradient(180deg, var(--color-bg), var(--color-bg));
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
  border: 0;
  background: none;
}

h1,
h2,
h3 {
  text-wrap: balance;
  line-height: 1.08;
}
p,
li {
  text-wrap: pretty;
  max-width: 68ch;
}

::selection {
  background: var(--color-primary-highlight);
}

: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;
  }
}

/* ── Utilities ── */
.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;
}
.muted {
  color: var(--color-text-muted);
}

/* ── Container ── */
.container {
  width: min(calc(100% - 2rem), var(--content-default));
  margin-inline: auto;
}

/* ── Section spacing ── */
.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-20));
  content-visibility: auto;
  contain-intrinsic-size: 1px 800px;
}

.section-header {
  max-width: 42rem;
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

/* ── Navbar ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: color-mix(in srgb, var(--color-bg) 82%, transparent);
  border-bottom: 1px solid transparent;
  transition:
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive);
}
.site-header.scrolled {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}
.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 4.75rem;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
}
.menu-toggle {
  display: none;
}

/* ── Hero ── */
.hero {
  padding-top: clamp(var(--space-16), 14vw, var(--space-24));
  min-height: min(92vh, 980px);
  display: flex;
  align-items: center;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: clamp(var(--space-8), 4vw, var(--space-16));
  align-items: end;
}
.hero-aside {
  display: grid;
  gap: var(--space-4);
  align-content: start;
  justify-items: start;
}
.hero-copy {
  display: grid;
  gap: var(--space-6);
}
.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  padding-top: var(--space-4);
}
.hero-cta,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.stack-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
  position: relative;
  z-index: 1;
}

/* ── About ── */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: var(--space-8);
  align-items: start;
}
.about-copy {
  display: grid;
  gap: var(--space-5);
}
.metric-row {
  display: grid;
  gap: var(--space-4);
}

/* ── Skills ── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
}
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ── Projects ── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
}
.project-top {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: var(--space-3);
}

/* ── Journey ── */
.journey-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
}

/* ── Contact ── */
.contact-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: var(--space-8);
  align-items: stretch;
}

/* ── Footer ── */
.site-footer {
  padding-block: var(--space-8) var(--space-10);
  border-top: 1px solid var(--color-border);
}
.footer-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  color: var(--color-text-faint);
  font-size: var(--text-sm);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .hero-grid,
  .about-grid,
  .contact-wrap,
  .journey-grid,
  .skills-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    min-height: auto;
    padding-top: var(--space-16);
  }
  .hero h1 {
    max-width: 13ch;
  }
}

@media (max-width: 820px) {
  .menu-toggle {
    display: inline-flex;
  }
  .nav-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 1rem;
    right: 1rem;
    padding: var(--space-3);
    border-radius: var(--radius-xl);
    background: color-mix(in srgb, var(--color-surface) 95%, transparent);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition:
      opacity var(--transition-interactive),
      transform var(--transition-interactive),
      visibility var(--transition-interactive);
  }
  .nav-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-links {
    flex-direction: column;
    align-items: stretch;
  }
  .nav-links a {
    justify-content: flex-start;
    border-radius: var(--radius-lg);
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 1.25rem), var(--content-default));
  }
  .hero-meta {
    grid-template-columns: 1fr;
  }
  .nav-shell {
    min-height: 4.25rem;
  }
  .footer-shell {
    flex-direction: column;
    align-items: flex-start;
  }
}