/* ================================================
   UPSTREAM DOWNHILL — styles.css
   ================================================ */

/* --- Variables -------------------------------- */
:root {
  --bg:          #F7F6F3;
  --white:       #FFFFFF;
  --text:        #1A1817;
  --text-muted:  #7A7672;
  --border:      #E2DED8;
  --surface:     #EFEEE9;

  --font-sans:  'Poppins', -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;

  --nav-h:   64px;
  --max-w:   1400px;
  --gutter:  clamp(1.5rem, 4vw, 4rem);
  --ease:    200ms ease;
}

/* --- Reset ------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.no-scroll { overflow: hidden; }

img  { display: block; max-width: 100%; height: auto; }
a    { color: inherit; text-decoration: none; }
ul   { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* --- Layout ----------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* --- Navigation ------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 200;
  height: var(--nav-h);
  transition: background-color 0.45s ease, border-color 0.45s ease;
  border-bottom: 1px solid transparent;
  background: rgba(10, 8, 6, 0.18);
}

.site-header.scrolled {
  background: rgba(247, 246, 243, 0.95);
  border-bottom-color: var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav-logo {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.88);
  transition: color 0.45s ease, opacity var(--ease);
  margin-right: clamp(1.5rem, 4vw, 4rem);
}
.nav-logo:hover { opacity: 0.6; }
.nav-logo { white-space: nowrap; }
.nav-logo svg { height: 18px; width: auto; display: block; }

.logo-slash {
  font-size: inherit;
  position: relative;
  top: -1px;
}
.site-header.scrolled .nav-logo { color: var(--text); }

/* Desktop links */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-link {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.45s ease, opacity var(--ease), border-color var(--ease);
}
.nav-link:hover          { color: rgba(255,255,255,0.95); }
.nav-link.active         { border-bottom-color: currentColor; color: rgba(255,255,255,0.95); }
.site-header.scrolled .nav-link        { color: var(--text-muted); }
.site-header.scrolled .nav-link:hover  { color: var(--text); }
.site-header.scrolled .nav-link.active { color: var(--text); border-bottom-color: var(--text); }

/* Dropdown */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 1.25rem);
  left: 50%;
  transform: translateX(-50%);
  min-width: 160px;
  background: rgba(247, 246, 243, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  padding: 0.625rem 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
  transform: translateX(-50%) translateY(-4px);
  pointer-events: none;
}

.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.nav-dropdown-link {
  display: block;
  padding: 0.5rem 1.25rem;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--ease), background-color var(--ease);
  white-space: nowrap;
}
.nav-dropdown-link:hover { color: var(--text); background: var(--surface); }

/* --- Hamburger -------------------------------- */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: rgba(255, 255, 255, 0.88);
  transform-origin: center;
  transition: background-color 0.45s ease, transform 0.3s ease, opacity 0.25s ease;
}
.site-header.scrolled .hamburger span { background: var(--text); }
.hamburger.open span                  { background: var(--white); }
.site-header.scrolled .hamburger.open span { background: var(--text); }

.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* --- Mobile Menu ------------------------------ */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 199;
  background: var(--text);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--nav-h) + 2rem) var(--gutter) 4rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.mobile-menu.open { opacity: 1; visibility: visible; }

.mobile-menu nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav-link {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(2.5rem, 9vw, 4rem);
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.15;
  display: inline-block;
  transition: color var(--ease);
}
.mobile-nav-link:hover { color: var(--white); }

.mobile-subnav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding-left: 1.5rem;
  margin-top: 0.25rem;
  margin-bottom: 0.5rem;
}

.mobile-subnav-link {
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  transition: color var(--ease);
  display: inline-block;
}
.mobile-subnav-link:hover { color: rgba(255, 255, 255, 0.85); }

/* --- Work page --------------------------------- */
.page-hero {
  padding: calc(var(--nav-h) + 4rem) 0 3rem;
  border-bottom: 1px solid var(--border);
}

.page-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(2.25rem, 4vw, 3.75rem);
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--text);
}

.work-section {
  padding: 4rem 0 6rem;
  border-top: 1px solid var(--border);
  content-visibility: auto;
  contain-intrinsic-size: auto 800px;
}

.work-section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 2.75rem;
}

.work-section-title {
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0;
}

.work-section .work-grid {
  grid-template-columns: repeat(3, 1fr);
}

/* --- Hero ------------------------------------- */
.hero {
  position: relative;
  width: 100%;
  height: 100svh;
  min-height: 520px;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 38%;
}

/* Gradient overlay — bottom-heavy */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(14, 12, 10, 0.68) 0%,
    rgba(14, 12, 10, 0.18) 38%,
    rgba(14, 12, 10, 0.06) 65%,
    transparent 100%
  );
  pointer-events: none;
}

.hero-content {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  max-width: var(--max-w);
  margin: 0 auto;
  left: 0; right: 0;
  padding: 4rem var(--gutter);
}

.hero-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(2.5rem, 5.5vw, 5.25rem);
  color: var(--white);
  line-height: 1.1;
  letter-spacing: 0.01em;
  margin-bottom: 2.5rem;
}

.hero-cta {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.55);
  padding: 0.8125rem 2.25rem;
  transition: background-color var(--ease), color var(--ease), border-color var(--ease);
}
.hero-cta:hover {
  background: var(--white);
  color: var(--text);
  border-color: var(--white);
}

/* --- Selected Work ---------------------------- */
.selected-work {
  padding: 5rem 0;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding: 0 var(--gutter);
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
}

.section-label {
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--ease);
}
.link-arrow span { display: inline-block; transition: transform var(--ease); }
.link-arrow:hover             { color: var(--text); }
.link-arrow:hover span        { transform: translateX(4px); }

/* Mosaic grid */
.mosaic-grid {
  columns: 4;
  column-gap: 12px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.mosaic-tile {
  break-inside: avoid;
  display: block;
  overflow: hidden;
  background: var(--surface);
  margin-bottom: 12px;
}

.mosaic-tile img {
  width: 100%;
  height: auto;
  display: block;
}

/* Work page grid (unchanged style) */
.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.work-tile { display: block; }

.work-tile-media {
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--surface);
  margin-bottom: 1rem;
}

.work-tile-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.work-tile-label {
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  transition: color var(--ease);
}
.work-tile:hover .work-tile-label { color: var(--text); }

/* --- Gallery pages (Skiing, Fly Fishing, Concerts, Portraits, Video) --- */
.gallery-wrap {
  padding-top: 4rem;
  padding-bottom: 8rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.gallery-grid--video {
  grid-template-columns: repeat(3, 1fr);
}

.work-tile-media--video {
  aspect-ratio: 16 / 9;
}

/* --- Competition Photography Page ------------- */
.comp-wrap {
  padding-top: 4rem;
  padding-bottom: 8rem;
  max-width: 720px;
}

.comp-intro {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.comp-intro:last-child { margin-bottom: 0; }

/* --- Lightbox --------------------------------- */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: var(--white);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  cursor: default;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.lightbox-close {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text);
  font-size: 1.875rem;
  line-height: 1;
  background: none;
  border: none;
  font-family: inherit;
  transition: opacity var(--ease);
}

.lightbox-close:hover { opacity: 0.5; }

.lightbox-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 80vh;
  object-fit: contain;
  cursor: default;
  display: block;
}

.lightbox-nav {
  display: flex;
  gap: 2.5rem;
  align-items: center;
  justify-content: center;
}

.lightbox-arrow {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.75rem;
  color: var(--text);
  padding: 0.5rem 1rem;
  line-height: 1;
  transition: opacity var(--ease);
}

.lightbox-arrow:hover:not(:disabled) { opacity: 0.5; }
.lightbox-arrow:disabled { cursor: default; }

/* --- Available Prints Page -------------------- */
.prints-intro-wrap {
  padding-top: 4rem;
  padding-bottom: 3rem;
  max-width: 720px;
}

.prints-intro {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.prints-intro:last-child { margin-bottom: 0; }

.prints-intro a {
  border-bottom: 1px solid currentColor;
  transition: opacity var(--ease);
}
.prints-intro a:hover { opacity: 0.5; }

.prints-grid-wrap {
  padding-bottom: 8rem;
}

.prints-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem 2rem;
}

.print-item {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.print-img {
  overflow: hidden;
  background: var(--surface);
}

.print-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.print-item:hover .print-img img { transform: scale(1.03); }

.print-title {
  font-size: 0.875rem;
  color: var(--text);
  letter-spacing: 0.03em;
}

.print-btn {
  align-self: flex-start;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.2rem;
  transition: color var(--ease), border-color var(--ease);
}

.print-btn:hover {
  color: var(--text);
  border-color: var(--text);
}

@media (max-width: 640px) {
  .prints-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem 1rem; }
}

@media (max-width: 380px) {
  .prints-grid { grid-template-columns: 1fr; }
}

/* --- Competition Photography — Mosaic --------- */
.comp-mosaic-section {
  padding: 0 0 4rem;
}

.comp-mosaic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: 280px 280px;
  gap: 12px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.comp-mosaic-tile {
  overflow: hidden;
  background: var(--surface);
}

.comp-mosaic-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.comp-mosaic-tile:hover img { transform: scale(1.03); }

.comp-tile--tall { grid-row: span 2; }
.comp-tile--wide { grid-column: span 2; }

/* --- Competition Photography — Sections ------- */
.comp-section {
  border-top: 1px solid var(--border);
  padding: 4rem 0;
}

.comp-section--prints {
  padding-bottom: 8rem;
}

.comp-section-inner {
  max-width: 720px;
}

.comp-section-heading {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

/* Rates */
.comp-rates {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
  margin-bottom: 2rem;
}

.comp-rate-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.comp-rate-label {
  font-size: 0.9375rem;
  color: var(--text);
}

.comp-rate-note {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.comp-rate-price {
  font-size: 0.875rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.comp-rates-note {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

.comp-cta-link {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  transition: opacity var(--ease);
}

.comp-cta-link:hover { opacity: 0.5; }

/* Prints */
.comp-prints-text {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

.comp-prints-btn {
  display: inline-block;
  background: var(--text);
  color: var(--bg);
  padding: 1rem 3rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: inherit;
  transition: opacity var(--ease);
  cursor: pointer;
}

.comp-prints-btn:hover { opacity: 0.75; }

@media (max-width: 480px) {
  .comp-mosaic-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: none;
    grid-auto-rows: 200px;
  }
  .comp-tile--tall,
  .comp-tile--wide { grid-column: auto; grid-row: auto; }
}

/* --- About Page ------------------------------- */
.about-wrap {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  padding-top: 4rem;
  padding-bottom: 8rem;
  align-items: start;
}

.about-photo img {
  width: 100%;
  display: block;
  object-fit: cover;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.about-text p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .about-wrap {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.about-equipment {
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.equipment-heading {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.equipment-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.equipment-list li {
  font-size: 0.9375rem;
  color: var(--text-muted);
  padding-left: 1.25rem;
  position: relative;
}

.equipment-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-muted);
}

/* --- Contact Form ----------------------------- */
.contact-wrap {
  padding-top: 4rem;
  padding-bottom: 8rem;
  max-width: 680px;
}

.contact-intro {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 0.75rem;
}

.contact-intro:last-of-type {
  margin-bottom: 4rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: flex;
  flex-direction: column;
}

.form-row--two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-field label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.required {
  color: var(--text-muted);
}

.form-field input,
.form-field textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 0.625rem 0;
  font-size: 0.9375rem;
  color: var(--text);
  font-family: inherit;
  outline: none;
  transition: border-color var(--ease);
  width: 100%;
  resize: none;
}

.form-field input:focus,
.form-field textarea:focus {
  border-bottom-color: var(--text);
}

.form-submit {
  align-self: flex-start;
  background: var(--text);
  color: var(--bg);
  border: none;
  padding: 0.75rem 2rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  font-family: inherit;
  transition: opacity var(--ease);
}

.form-submit:hover { opacity: 0.75; }

@media (max-width: 480px) {
  .form-row--two {
    grid-template-columns: 1fr;
  }
}

/* --- Footer ----------------------------------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.25rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-copy {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}


.footer-social {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  justify-self: end;
}

.footer-social-link {
  color: var(--text-muted);
  display: flex;
  transition: color var(--ease);
}

.footer-social-link:hover { color: var(--text); }

/* ================================================
   RESPONSIVE
   ================================================ */

/* Hide desktop nav, show hamburger ≤ 1280px */
@media (max-width: 1280px) {
  .nav-desktop { display: none; }
  .hamburger   { display: flex; }
}


/* Responsive mosaic columns */
@media (max-width: 900px) { .mosaic-grid { columns: 3; } }
@media (max-width: 600px) { .mosaic-grid { columns: 2; } }

/* Mobile grid */
@media (max-width: 480px) {
  .work-grid { grid-template-columns: 1fr; gap: 2rem; }
  .work-tile-media { aspect-ratio: 3 / 2; }
}

@media (max-width: 480px) {
  :root { --nav-h: 56px; }
  .hero-tagline { margin-bottom: 2rem; }
}

@media (max-width: 600px) {
  .footer-inner {
    flex-direction: column-reverse;
    align-items: center;
    text-align: center;
    gap: 1rem;
  }
}