/* ================================================================
   LAYOUT.CSS — Lani Raukawa Field · lanifield.nz
   Page-level layout, section spacing, hero, responsive grid
   ================================================================
   Table of contents:
     1.  Section base
     2.  Hero layout
     3.  Avatar frame
     4.  Whakatauki section spacing
     5.  Journal preview section
     6.  Philosophy section spacing
     7.  Page-level background
     8.  Utility layout helpers
   ================================================================ */


/* ----------------------------------------------------------------
   1. SECTION BASE
   Consistent vertical rhythm across all sections.
   ---------------------------------------------------------------- */

.section {
  padding-block: var(--space-16);
}

@media (min-width: 800px) {
  .section {
    padding-block: var(--space-24);
  }
}


/* ----------------------------------------------------------------
   2. HERO LAYOUT
   Two-column at 800px+: text left, avatar/skills right.
   Below 800px: stacked, text first.
   ---------------------------------------------------------------- */

.hero {
  padding-block-start: calc(var(--space-16) + var(--space-4));
  position: relative;
  overflow: hidden;
}

/* Background atmosphere — deep radial glow, top-left */
.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: -10%;
  width: 70%;
  height: 120%;
  background: radial-gradient(
    ellipse at 30% 40%,
    rgba(141, 89, 210, 0.10) 0%,
    rgba(72, 246, 248, 0.05) 40%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 800px) {
  .hero__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

@media (min-width: 1200px) {
  .hero__inner {
    grid-template-columns: 3fr 2fr;
  }
}

/* Left column: text content */
.hero__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.hero__heading {
  font-size: clamp(var(--text-3xl), 6vw, var(--text-4xl));
  font-weight: var(--weight-extrabold);
  letter-spacing: var(--tracking-tight);
  line-height: 1.05;
  color: var(--color-smoke);

  /* Gradient text — cyan to lavender */
  background: linear-gradient(
    135deg,
    var(--color-cyan) 0%,
    var(--color-smoke) 50%,
    var(--color-lavender) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Fallback for browsers without gradient text */
@supports not (-webkit-background-clip: text) {
  .hero__heading {
    color: var(--color-smoke);
  }
}

.hero__subheading {
  font-family: var(--font-display);
  font-size: clamp(var(--text-md), 2vw, var(--text-xl));
  font-weight: var(--weight-medium);
  color: var(--color-lavender);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  max-width: none;
}

.hero__body {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: var(--leading-loose);
  max-width: 52ch;
}

.hero__body em {
  color: var(--color-cyan);
  font-style: normal;
  font-weight: var(--weight-medium);
}

/* Right column: avatar + skills */
.hero__aside {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

@media (min-width: 800px) {
  .hero__aside {
    align-items: center;
    justify-self: center;
    width: 100%;
    max-width: 380px;
  }
}


/* ----------------------------------------------------------------
   3. AVATAR FRAME
   Hexagonal clip + animated scan line + glow border.
   ---------------------------------------------------------------- */

.hero__avatar-frame {
  position: relative;
  width: 260px;
  height: 260px;
  flex-shrink: 0;
}

@media (min-width: 500px) {
  .hero__avatar-frame {
    width: 300px;
    height: 300px;
  }
}

/* Outer glow ring */
.hero__avatar-frame::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    var(--color-cyan),
    var(--color-lavender),
    var(--color-cyan)
  );
  animation: ring-spin 8s linear infinite;
  z-index: -1;
}

@keyframes ring-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Inner mask to create ring effect */
.hero__avatar-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid transparent;
  background: var(--color-bg) padding-box;
  z-index: 0;
}

.hero__avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  position: relative;
  z-index: 1;
  display: block;

  /* Subtle filter to match cyberpunk palette */
  filter: saturate(0.9) contrast(1.05);
}

/* Scan line animation */
.hero__avatar-frame .scan-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(72, 246, 248, 0.6),
    transparent
  );
  z-index: 2;
  pointer-events: none;
  border-radius: 50%;
  animation: scan 4s ease-in-out infinite;
  animation-delay: 1s;
}

/* Pause scan line if reduced motion */
@media (prefers-reduced-motion: reduce) {
  .hero__avatar-frame::before {
    animation: none;
  }
  .hero__avatar-frame .scan-line {
    animation: none;
    display: none;
  }
}


/* ----------------------------------------------------------------
   4. WHAKATAUKI SECTION SPACING
   ---------------------------------------------------------------- */

.whakatauaki {
  padding-block: var(--space-16);
}

@media (min-width: 800px) {
  .whakatauaki {
    padding-block: var(--space-24);
  }
}


/* ----------------------------------------------------------------
   5. JOURNAL PREVIEW SECTION
   ---------------------------------------------------------------- */

.journal-preview {
  background-color: var(--color-bg);
}


/* ----------------------------------------------------------------
   6. PHILOSOPHY SECTION SPACING
   ---------------------------------------------------------------- */

.philosophy {
  padding-block: var(--space-24);
}

@media (min-width: 800px) {
  .philosophy {
    padding-block: var(--space-32);
  }
}


/* ----------------------------------------------------------------
   7. PAGE-LEVEL BACKGROUND
   Subtle noise texture overlay on body via SVG data URI.
   Adds depth without additional HTTP request.
   ---------------------------------------------------------------- */

body::before {
  content: '';
  position: fixed;
  inset: 0;
  /* Micro-noise: very subtle dot pattern */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4'%3E%3Crect width='1' height='1' fill='rgba(248,248,255,0.015)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  pointer-events: none;
  z-index: var(--z-below);
}


/* ----------------------------------------------------------------
   8. UTILITY LAYOUT HELPERS
   ---------------------------------------------------------------- */

/* Flex row — quick utility for inline alignment */
.u-flex-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Cluster — wrapping flex row */
.u-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Stack — vertical flex */
.u-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* Text: display font override */
.u-font-display {
  font-family: var(--font-display);
}

/* Colour utilities */
.u-color-primary   { color: var(--color-primary); }
.u-color-secondary { color: var(--color-secondary); }
.u-color-accent    { color: var(--color-accent); }
.u-color-muted     { color: var(--color-text-muted); }

/* Text size utilities */
.u-text-sm  { font-size: var(--text-sm); }
.u-text-xs  { font-size: var(--text-xs); }

/* Section divider — visible rule */
.u-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-block: var(--space-8);
}

/* Visually hidden heading (for landmark labelling) */
.u-section-label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin-bottom: var(--space-6);
}