/* ==========================================================================
   Samuel John Ford Photography — Levon Biss-inspired layout
   SJF palette: warm parchment, deep charcoal, muted terracotta
   ========================================================================== */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #F5F0EA;
  --color-text: #2C2C2A;
  --color-text-muted: #6B6B66;
  --color-text-faint: #A8A8A2;
  --color-accent: #B8956A;
  --color-border: #D8D2C8;
  --color-surface: #EDE8E0;

  --font-logo: 'Josefin Sans', sans-serif;
  --font-display: 'Cormorant Garamond', 'Georgia', serif;
  --font-body: 'DM Sans', 'Helvetica Neue', sans-serif;

  --header-h: 72px;
  --grid-gap: 28px;
  --grid-pad: 40px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
}

body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ==========================================================================
   Header — Fixed, logo left, nav right
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--grid-pad);
  background: var(--color-bg);
  transition: box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: box-shadow;
}

.site-header.scrolled {
  box-shadow: 0 1px 0 var(--color-border);
}

.header-logo {
  font-family: var(--font-logo);
  font-weight: 100;
  font-size: 1.35rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text);
  text-decoration: none;
}

.header-nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-decoration: none;
  position: relative;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ==========================================================================
   Masonry Grid — 3-column, true masonry with CSS columns
   ========================================================================== */

.work {
  padding-top: calc(var(--header-h) + var(--grid-pad));
  padding-left: var(--grid-pad);
  padding-right: var(--grid-pad);
  padding-bottom: var(--grid-pad);
}

.masonry {
  column-count: 3;
  column-gap: var(--grid-gap);
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: var(--grid-gap);
  cursor: pointer;
  overflow: hidden;
  border-radius: 0;
  position: relative;
}

.masonry-item img {
  width: 100%;
  display: block;
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}

.masonry-item.revealed img {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.masonry-item.revealed:hover img {
  transform: scale(1.02);
}

/* ==========================================================================
   Lightbox
   ========================================================================== */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(44, 44, 42, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
  will-change: opacity;
}

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

.lightbox[hidden] {
  display: none;
}

.lb-img-wrap {
  max-width: 90vw;
  max-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lb-img {
  max-width: 90vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 0;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.lb-close,
.lb-prev,
.lb-next {
  position: absolute;
  background: none;
  border: none;
  color: rgba(245, 240, 234, 0.8);
  cursor: pointer;
  transition: color 0.2s ease;
  z-index: 2001;
}

.lb-close:hover,
.lb-prev:hover,
.lb-next:hover {
  color: #fff;
}

.lb-close {
  top: 24px;
  right: 32px;
  font-size: 2.5rem;
  font-weight: 100;
  line-height: 1;
}

.lb-prev,
.lb-next {
  top: 50%;
  transform: translateY(-50%);
  font-size: 3.5rem;
  font-weight: 100;
  line-height: 1;
  padding: 16px;
}

.lb-prev {
  left: 16px;
}

.lb-next {
  right: 16px;
}

/* ==========================================================================
   About & Contact — text sections
   ========================================================================== */

.about-section,
.contact-section {
  padding: 5rem var(--grid-pad);
  border-top: 1px solid var(--color-border);
}

.about-inner,
.contact-inner {
  max-width: 680px;
}

.about-heading {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.8rem, 1rem + 2.5vw, 2.8rem);
  letter-spacing: 0.02em;
  margin-bottom: 2rem;
  color: var(--color-text);
}

.about-text p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.contact-intro {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  padding: 0.75rem 0;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-border);
  outline: none;
  transition: border-color 0.3s ease;
}

.form-input:focus {
  border-bottom-color: var(--color-accent);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-submit {
  align-self: flex-start;
  padding: 0.7rem 2.5rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: transparent;
  border: 1px solid var(--color-accent);
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease;
  margin-top: 0.5rem;
}

.form-submit:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

.form-success {
  font-size: 1rem;
  color: var(--color-accent);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem var(--grid-pad);
  border-top: 1px solid var(--color-border);
}

.footer-text {
  font-size: 0.75rem;
  color: var(--color-text-faint);
  letter-spacing: 0.03em;
}

.footer-attribution {
  font-size: 0.7rem;
  color: var(--color-text-faint);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: color 0.2s ease;
}

.footer-attribution:hover {
  color: var(--color-accent);
}

/* ==========================================================================
   Audio Bar — mute button + volume slider
   ========================================================================== */

.audio-bar {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 900;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 6px;
  border-radius: 24px;
  border: 1px solid var(--color-border);
  background: rgba(245, 240, 234, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  opacity: 0.65;
  transition: opacity 0.4s ease, border-color 0.4s ease;
}

.audio-bar:hover {
  opacity: 1;
  border-color: var(--color-accent);
}

.audio-bar.playing {
  opacity: 0.85;
}

.audio-mute {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: color 0.3s ease;
}

.audio-mute:hover {
  color: var(--color-accent);
}

/* Default: show muted icon, hide playing icon */
.audio-bar .audio-icon--on { display: none; }
.audio-bar .audio-icon--off { display: block; }

/* When playing: swap icons */
.audio-bar.playing .audio-icon--on { display: block; }
.audio-bar.playing .audio-icon--off { display: none; }

/* Volume slider */
.audio-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 3px;
  border-radius: 2px;
  background: var(--color-border);
  outline: none;
  cursor: pointer;
  transition: background 0.2s ease;
}

.audio-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-accent);
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.audio-slider::-webkit-slider-thumb:hover {
  transform: scale(1.25);
}

.audio-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-accent);
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.audio-slider::-moz-range-thumb:hover {
  transform: scale(1.25);
}

/* ==========================================================================
   Shop Section
   ========================================================================== */

.shop-section {
  padding: 5rem var(--grid-pad);
  border-top: 1px solid var(--color-border);
}

.shop-inner {
  max-width: 1400px;
  margin: 0 auto;
}

.shop-intro {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  max-width: 680px;
}

/* Pricing tiers */
.shop-tiers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  max-width: 520px;
  margin-bottom: 3.5rem;
}

.tier-card {
  padding: 1.75rem 1.5rem;
  border: 1px solid var(--color-border);
  background: transparent;
  transition: border-color 0.3s ease;
}

.tier-card:hover {
  border-color: var(--color-accent);
}

.tier-name {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.tier-price {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 2rem;
  color: var(--color-text);
  letter-spacing: 0.02em;
  margin-bottom: 0.75rem;
}

.tier-desc {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--color-text-faint);
}

/* Shop grid */
.shop-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gap);
}

.shop-card {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}

.shop-card.revealed {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.shop-card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--color-surface);
}

.shop-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.shop-card:hover .shop-card-img img {
  transform: scale(1.03);
}

.shop-card-body {
  padding: 1rem 0;
}

.shop-card-title {
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.shop-card-actions {
  display: flex;
  gap: 0.5rem;
}

.shop-paypal-form {
  flex: 1;
}

.shop-btn {
  display: block;
  width: 100%;
  padding: 0.6rem 0.5rem;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
}

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

.shop-btn--commercial {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.shop-btn--commercial:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
  :root {
    --grid-gap: 20px;
    --grid-pad: 28px;
  }

  .masonry {
    column-count: 2;
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: auto;
    --grid-gap: 16px;
    --grid-pad: 16px;
  }

  html {
    scroll-padding-top: 100px;
  }

  .site-header {
    flex-direction: column;
    padding: 14px var(--grid-pad);
    gap: 6px;
    height: auto;
  }

  .header-logo {
    font-size: 1rem;
    letter-spacing: 0.18em;
  }

  .header-nav {
    gap: 1.5rem;
  }

  .nav-link {
    font-size: 0.72rem;
  }

  .work {
    padding-top: 90px;
  }

  .masonry {
    column-count: 2;
  }

  .shop-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .shop-tiers {
    grid-template-columns: 1fr;
    max-width: 320px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .lb-prev,
  .lb-next {
    font-size: 2.5rem;
    padding: 8px;
  }

  .lb-prev { left: 8px; }
  .lb-next { right: 8px; }
  .lb-close { top: 16px; right: 16px; }
}

@media (max-width: 480px) {
  .masonry {
    column-count: 1;
  }

  .shop-grid {
    grid-template-columns: 1fr;
  }

  .header-logo {
    font-size: 0.85rem;
    letter-spacing: 0.1em;
  }

  .header-nav {
    gap: 1rem;
  }

  .nav-link {
    font-size: 0.7rem;
  }
}

/* ==========================================================================
   Screen reader only — hidden but accessible
   ========================================================================== */
.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;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-section {
  padding: 80px var(--grid-pad) 40px;
  max-width: 800px;
  margin: 0 auto;
}

.faq-inner {
  width: 100%;
}

.faq-list {
  margin-top: 40px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 20px 0;
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-question {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: '+';
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1.25rem;
  color: var(--color-accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item[open] .faq-question::after {
  content: '−';
}

.faq-answer {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  padding-top: 12px;
  max-width: 640px;
}

.faq-item {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.faq-item.revealed {
  opacity: 1;
  transform: translateY(0);
}