/* ============================================================
   Guy Lahaie Photography — Design System
   Palette derived from Guy's own night-sky, icefield & campfire
   photography: near-black sky, warm horizon-glow gold, cool
   starlight grey.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;1,400;1,500&family=Inter:wght@300;400;500;600&display=swap');

:root {
  /* Color tokens */
  --color-background: #0b0c0e;
  --color-surface: #16181c;
  --color-surface-raised: #1d2025;
  --color-foreground: #f4f1ea;
  --color-muted: #a7aeb9;
  --color-muted-2: #757c87;
  --color-accent: #c9974b;
  --color-accent-hover: #ddb06c;
  --color-accent-soft: rgba(201, 151, 75, 0.14);
  --color-border: rgba(244, 241, 234, 0.12);
  --color-border-strong: rgba(244, 241, 234, 0.24);
  --color-overlay: rgba(6, 7, 8, 0.55);

  /* Typography */
  --font-display: 'Playfair Display', 'Georgia', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Type scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;
  --text-4xl: 3rem;
  --text-5xl: 4.25rem;

  /* Spacing scale (4/8pt rhythm) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --container-max: 1320px;
  --nav-height: 88px;
  --radius-sm: 2px;
  --radius-md: 4px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration: 300ms;
}

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

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--color-background);
  color: var(--color-foreground);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; line-height: 1.15; margin: 0; }
p { margin: 0; }

/* Focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
@media (min-width: 768px) {
  .container { padding-inline: var(--space-12); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.9rem 1.9rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-foreground);
  background: transparent;
  transition: background var(--duration) var(--ease-out), border-color var(--duration) var(--ease-out), color var(--duration) var(--ease-out);
  min-height: 44px;
}
.btn:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-solid {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #16110a;
}
.btn-solid:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); color: #16110a; }

/* ---------- Nav ---------- */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: linear-gradient(to bottom, rgba(6,7,8,0.85), rgba(6,7,8,0));
  transition: background var(--duration) var(--ease-out), backdrop-filter var(--duration) var(--ease-out);
}
.site-header.is-scrolled {
  background: rgba(11, 12, 14, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  line-height: 1;
}
.logo-mark {
  width: 34px;
  height: 26px;
  flex-shrink: 0;
  color: var(--color-foreground);
  transition: color var(--duration) var(--ease-out);
}
.logo:hover .logo-mark { color: var(--color-accent); }
.logo-text {
  display: flex;
  flex-direction: column;
}
.logo-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-xl);
  letter-spacing: 0.01em;
  color: var(--color-foreground);
}
.logo-sub {
  font-family: var(--font-body);
  font-size: 0.6rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-top: 4px;
}

.main-nav {
  display: none;
  align-items: center;
  gap: var(--space-8);
}
@media (min-width: 900px) {
  .main-nav { display: flex; }
}
.main-nav a {
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  padding-block: var(--space-2);
  border-bottom: 1px solid transparent;
  transition: color var(--duration) var(--ease-out), border-color var(--duration) var(--ease-out);
}
.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-foreground);
  border-color: var(--color-accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-border-strong);
  color: var(--color-muted);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius-sm);
  min-height: 36px;
  transition: border-color var(--duration) var(--ease-out), color var(--duration) var(--ease-out);
}
.lang-switch:hover { border-color: var(--color-accent); color: var(--color-accent); }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  height: 44px;
  padding: 0 var(--space-2);
  background: transparent;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  color: var(--color-foreground);
  transition: border-color var(--duration) var(--ease-out);
}
.nav-toggle:hover { border-color: var(--color-accent); }
@media (min-width: 900px) { .nav-toggle { display: none; } }
.nav-toggle-label {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.nav-toggle-icon {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 20px;
}
.nav-toggle-icon span {
  display: block;
  width: 20px;
  height: 1px;
  background: var(--color-foreground);
  transition: transform var(--duration) var(--ease-out), opacity var(--duration) var(--ease-out);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-icon span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-icon span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--color-background);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  transform: translateY(-100%);
  transition: transform 400ms var(--ease-out);
}
.mobile-nav.is-open { transform: translateY(0); }
.mobile-nav a {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-foreground);
}
@media (min-width: 900px) { .mobile-nav { display: none; } }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--color-background);
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 60%;
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6,7,8,0.92) 0%, rgba(6,7,8,0.35) 45%, rgba(6,7,8,0.15) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  padding-block-end: var(--space-24);
}
.hero-eyebrow {
  display: block;
  font-size: var(--text-xs);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}
.hero h1 {
  font-size: clamp(2.75rem, 8vw, var(--text-5xl));
  max-width: 16ch;
  color: var(--color-foreground);
}
.hero-tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.1rem, 2.5vw, var(--text-xl));
  color: var(--color-muted);
  margin-top: var(--space-4);
  max-width: 40ch;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-8);
}
.scroll-cue {
  position: absolute;
  bottom: var(--space-8);
  right: var(--space-6);
  z-index: 1;
  writing-mode: vertical-rl;
  font-size: var(--text-xs);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-muted);
  display: none;
  align-items: center;
  gap: var(--space-3);
}
@media (min-width: 768px) {
  .scroll-cue { display: flex; }
  .container { position: relative; }
}
.scroll-cue::after {
  content: "";
  width: 1px;
  height: 48px;
  background: var(--color-border-strong);
}

/* ---------- Sections ---------- */
.section { padding-block: var(--space-24); }
.section-tight { padding-block: var(--space-16); }
.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}
.section-eyebrow {
  display: block;
  font-size: var(--text-xs);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}
.section-header h2 {
  font-size: clamp(1.75rem, 4vw, var(--text-3xl));
}
.section-header .btn { flex-shrink: 0; }
.section-lede {
  font-size: var(--text-lg);
  color: var(--color-muted);
  max-width: 60ch;
  line-height: 1.75;
}

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

/* ---------- Featured / Portfolio grid ---------- */
.work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
@media (min-width: 640px) {
  .work-grid { grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
}
.work-card {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--color-surface);
  border-radius: var(--radius-md);
}
.work-card:first-child { grid-column: span 2; aspect-ratio: 16 / 11; }
@media (min-width: 640px) {
  .work-card:first-child { grid-column: span 2; grid-row: span 2; aspect-ratio: 4/5; }
}
.work-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms var(--ease-out);
}
.work-card:hover img { transform: scale(1.06); }
.work-card-caption {
  position: absolute;
  inset-inline: 0;
  inset-block-end: 0;
  padding: var(--space-4) var(--space-4) var(--space-3);
  background: linear-gradient(to top, rgba(6,7,8,0.85), transparent);
}
.work-card-caption .tag {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.work-card-caption .title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-foreground);
  margin-top: 2px;
}

/* Portfolio page filter grid */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-12);
}
.filter-btn {
  background: transparent;
  border: 1px solid var(--color-border-strong);
  color: var(--color-muted);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  min-height: 40px;
  transition: all var(--duration) var(--ease-out);
}
.filter-btn:hover { color: var(--color-foreground); border-color: var(--color-accent); }
.filter-btn[aria-pressed="true"] {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #16110a;
}

.masonry-grid {
  columns: 1;
  column-gap: var(--space-6);
}
@media (min-width: 640px) { .masonry-grid { columns: 2; } }
@media (min-width: 1024px) { .masonry-grid { columns: 3; } }
.masonry-item {
  break-inside: avoid;
  margin-bottom: var(--space-6);
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  cursor: pointer;
}
.masonry-item img {
  width: 100%;
  height: auto;
  transition: transform 600ms var(--ease-out), opacity 400ms var(--ease-out);
}
.masonry-item:hover img { transform: scale(1.04); }
.masonry-item.is-hidden { display: none; }
.masonry-item .zoom-hint {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(6,7,8,0.55);
  color: var(--color-foreground);
  opacity: 0;
  transition: opacity var(--duration) var(--ease-out);
}
.masonry-item:hover .zoom-hint { opacity: 1; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(6, 7, 8, 0.95);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}
.lightbox.is-open { display: flex; }
.lightbox img {
  max-width: min(90vw, 1400px);
  max-height: 86vh;
  width: auto;
  border-radius: var(--radius-sm);
}
.lightbox-close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  color: var(--color-foreground);
}
.lightbox-close:hover { border-color: var(--color-accent); color: var(--color-accent); }
.lightbox-nav {
  position: absolute;
  top: 50%;
  translate: 0 -50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  color: var(--color-foreground);
}
.lightbox-nav:hover { border-color: var(--color-accent); color: var(--color-accent); }
.lightbox-prev { left: var(--space-6); }
.lightbox-next { right: var(--space-6); }
@media (max-width: 640px) {
  .lightbox-nav { width: 40px; height: 40px; }
  .lightbox-prev { left: var(--space-3); }
  .lightbox-next { right: var(--space-3); }
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}
@media (min-width: 900px) {
  .about-grid { grid-template-columns: 0.85fr 1.15fr; gap: var(--space-16); }
}
.about-portrait {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/5;
}
.about-portrait img { width: 100%; height: 100%; object-fit: cover; }
.about-copy p { color: var(--color-muted); margin-bottom: var(--space-4); line-height: 1.8; }
.about-copy p:last-child { margin-bottom: 0; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-8);
}
@media (min-width: 640px) { .stat-row { grid-template-columns: repeat(4, 1fr); } }
.stat {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
}
.stat .num { font-family: var(--font-display); font-size: var(--text-2xl); color: var(--color-accent); }
.stat .label { font-size: var(--text-xs); letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-muted-2); margin-top: 2px; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  gap: var(--space-12);
}
@media (min-width: 900px) {
  .contact-grid { grid-template-columns: 1fr 1fr; gap: var(--space-16); }
}
.field {
  margin-bottom: var(--space-6);
}
.field label {
  display: block;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}
.field input,
.field textarea {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-foreground);
  font-family: inherit;
  font-size: var(--text-base);
  padding: 0.9rem 1rem;
  min-height: 44px;
  transition: border-color var(--duration) var(--ease-out);
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus,
.field textarea:focus { border-color: var(--color-accent); outline: none; }
.field-hint { font-size: var(--text-xs); color: var(--color-muted-2); margin-top: var(--space-2); }

.contact-info dt {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted-2);
  margin-top: var(--space-6);
}
.contact-info dt:first-child { margin-top: 0; }
.contact-info dd {
  margin: var(--space-2) 0 0;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-foreground);
}
.contact-info a:hover { color: var(--color-accent); }

.social-row {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-8);
}
.social-row a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  color: var(--color-muted);
  transition: color var(--duration) var(--ease-out), border-color var(--duration) var(--ease-out);
}
.social-row a:hover { color: var(--color-accent); border-color: var(--color-accent); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-12);
}
.footer-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
@media (min-width: 768px) {
  .footer-grid { flex-direction: row; align-items: center; justify-content: space-between; }
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}
.footer-nav a {
  font-size: var(--text-sm);
  color: var(--color-muted);
  letter-spacing: 0.04em;
}
.footer-nav a:hover { color: var(--color-accent); }
.footer-meta {
  font-size: var(--text-xs);
  color: var(--color-muted-2);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* Page hero (non-home pages) */
.page-hero {
  padding-block: calc(var(--nav-height) + var(--space-16)) var(--space-16);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.page-hero .section-eyebrow { margin-bottom: var(--space-4); }
.page-hero h1 { font-size: clamp(2.25rem, 6vw, var(--text-4xl)); }
.page-hero p { color: var(--color-muted); font-size: var(--text-lg); margin-top: var(--space-4); max-width: 60ch; }