/* ================================================================
   COLOR PALETTE
   ================================================================ */
:root {
  --bg:           #F7F4F0;
  --surface:      #EDEAE5;
  --surface-deep: #E4E0DA;
  --text:         #4D3E3C;
  --text-muted:   #8A7A78;
  --accent:       #9E8B87;
  --border:       #D8D3CC;
  --card-shadow:  rgba(77, 62, 60, 0.12);

  --side-pad: clamp(1.5rem, 6vw, 5rem);

  --nav-icon-linkedin-h: 2rem;
  --nav-icon-gmail-h:    1.45rem;

  --anim-page-fadeout: 0.2s;
  --anim-page-fadein:  0.2s;
}

[data-theme="dark"] {
  --bg:           #0e0e0d;
  --surface:      #2B2825;
  --surface-deep: #332F2C;
  --text:         #E8E3DE;
  --text-muted:   #9A8C89;
  --accent:       #B8A59F;
  --border:       #3E3A37;
  --card-shadow:  rgba(0, 0, 0, 0.35);
}

/* ================================================================
   ANIMATIONS
   ================================================================ */
@keyframes fadeSlideFromLeft {
  from { opacity: 0; transform: translateX(-28px); }
  to   { opacity: 1; transform: translateX(0);     }
}

@keyframes pageFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes pageFadeOut {
  from { opacity: 1; }
  to   { opacity: 0; }
}

@keyframes navPress {
  0%   { transform: scale(1);    }
  35%  { transform: scale(0.82); }
  70%  { transform: scale(1.06); }
  100% { transform: scale(1);    }
}

@keyframes cardFadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0);    }
}

.work-card.card-entering {
  animation: cardFadeIn 0.4s ease both;
}

@keyframes cardBounce {
  0%   { transform: scale(1);    }
  18%  { transform: scale(0.94); }
  46%  { transform: scale(1.08); }
  72%  { transform: scale(0.98); }
  88%  { transform: scale(1.02); }
  100% { transform: scale(1);    }
}

@keyframes arrowBounce {
  0%, 100% { transform: translate(-50%, 0);   }
  50%       { transform: translate(-50%, 9px); }
}

@keyframes namePress {
  0%   { transform: scale(1);    }
  25%  { transform: scale(0.93); }
  60%  { transform: scale(1.08); }
  100% { transform: scale(1);    }
}

/* ================================================================
   RESET
   ================================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; user-select: none; }
img { display: block; max-width: 100%; }

/* ================================================================
   BASE
   ================================================================ */
html { font-size: 18px; scroll-behavior: smooth; scrollbar-gutter: stable; }

body {
  background:     var(--bg);
  color:          var(--text);
  font-family:    'Helvetica Neue', Arial, system-ui, sans-serif;
  line-height:    1.6;
  min-height:     100vh;
  display:        flex;
  flex-direction: column;
  animation:      pageFadeIn var(--anim-page-fadein) ease both;
  transition:     background-color 0.3s ease, color 0.3s ease;
}

body.page-exit {
  animation:      pageFadeOut var(--anim-page-fadeout) ease both;
  pointer-events: none;
}

/* ================================================================
   HEADER & NAV
   ================================================================ */
.site-header {
  padding:       1.1rem var(--side-pad);
  background:    var(--bg);
  position:      sticky;
  top:           0;
  z-index:       10;
  border-bottom: 1px solid transparent;
  transition:    border-color 0.3s;
}

.site-header.scrolled { border-bottom-color: var(--border); }

.site-nav {
  position:        relative;
  display:         flex;
  justify-content: space-between;
  align-items:     center;
}

.nav-signature-link {
  position:  absolute;
  left:      50%;
  transform: translateX(-50%);
}

/* Left: signature */
.nav-signature {
  height:     3rem;
  width:      auto;
  display:    block;
  opacity:    0.85;
  transition: opacity 0.2s;
  content:    url('../assets/pngs/signature_light.png');
}

[data-theme="dark"] .nav-signature {
  content: url('../assets/pngs/signature_dark.png');
}

.nav-signature:hover { opacity: 1; }

.nav-left,
.nav-icons {
  display:     flex;
  gap:         2.25rem;
  align-items: flex-end;
}

.nav-heading {
  color:           var(--text);
  text-decoration: none;
  font-size:       0.9rem;
  font-weight:     500;
  letter-spacing:  0.08em;
  text-transform:  uppercase;
  position:        relative;
  padding-bottom:  3px;
}

.nav-heading::after {
  content:          '';
  position:         absolute;
  bottom:           0;
  left:             0;
  width:            100%;
  height:           1px;
  background:       var(--text);
  transform:        scaleX(0);
  transform-origin: left center;
  transition:       transform 0.25s ease;
  will-change:      transform;
}

.nav-heading:hover::after,
.nav-heading.active::after { transform: scaleX(1); }

.nav-heading.active { color: var(--accent); }

.nav-heading.nav-press {
  animation: navPress 0.22s ease-out forwards;
}

/* Nav icon links (LinkedIn, Gmail) */
.nav-icon-link {
  display:        flex;
  align-items:    center;
  opacity:        0.72;
  transition:     opacity 0.2s;
  text-decoration: none;
}

.nav-icon-link:hover { opacity: 1; }

.nav-icon--linkedin { height: var(--nav-icon-linkedin-h); width: auto; }
.nav-icon--gmail    { height: var(--nav-icon-gmail-h);    width: auto; }

/* ================================================================
   WORK — GRID PAGE
   ================================================================ */
.work-page-main {
  flex:    1;
  padding: 2.5rem var(--side-pad) 5rem;
}

.work-grid {
  display:               grid;
  grid-template-columns: repeat(2, 1fr);
  gap:                   1.5rem;
  max-width:             75%;
  margin:                0 auto;
}

.work-card {
  position:      relative;
  aspect-ratio:  1 / 1;
  overflow:      hidden;
  cursor:        pointer;
  background:    var(--surface);
  border-radius: 4px;
  transition:    transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                 box-shadow 0.3s ease,
                 background-color 0.3s ease;
}

.work-card:hover {
  transform:  scale(1.03);
  box-shadow: 0 12px 40px var(--card-shadow);
}

.work-card.card-bounce {
  animation: cardBounce 0.38s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

.work-card img.work-card-img {
  width:      100%;
  height:     100%;
  object-fit: cover;
  display:    block;
}

.work-card canvas.work-card-img {
  width:   100%;
  height:  auto;
  display: block;
}

.work-card-img-alt {
  position:       absolute;
  top:            0;
  left:           0;
  width:          100%;
  height:         auto;
  display:        block;
  opacity:        0;
  transition:     opacity 0.18s ease;
  z-index:        1;
  pointer-events: none;
}

.work-card:hover .work-card-img-alt { opacity: 1; }

.work-card img.work-card-img-alt {
  height:     100%;
  object-fit: cover;
}

/* Overlay */
.work-card-overlay {
  position:        absolute;
  inset:           0;
  display:         flex;
  flex-direction:  column;
  align-items:     center;
  justify-content: center;
  gap:             0.45rem;
  padding:         1.31rem;
  background:      rgba(77, 62, 60, 0.9);
  opacity:         0;
  transition:      opacity 0.28s ease;
  z-index:         2;
}

.work-card:hover .work-card-overlay { opacity: 1; }

.work-card-title {
  color:          #fff;
  font-size:      1.5rem;
  font-weight:    700;
  letter-spacing: 0.08em;
  line-height:    1.2;
  text-align:     center;
  text-transform: uppercase;
}

.work-card-desc {
  color:       rgba(255, 255, 255, 0.82);
  font-size:   0.85rem;
  line-height: 1.5;
  text-align:  center;
}

/* ================================================================
   WORK — ITEM DETAIL PAGE
   ================================================================ */
.work-item-main {
  flex:      1;
  padding:   3rem var(--side-pad) 6rem;
  max-width: 1200px;
  margin:    0 auto;
  width:     100%;
}

.work-item-title {
  font-size:      2.2rem;
  font-weight:    700;
  letter-spacing: -0.02em;
  margin-bottom:  1.75rem;
  line-height:    1.15;
}

.work-section {
  display:               grid;
  grid-template-columns: 3fr 2fr;
  gap:                   3.5rem;
  align-items:           stretch;
  margin-bottom:         5rem;
  transition:            opacity 0.65s ease, transform 0.65s ease;
}

.work-section.await-scroll {
  opacity:   0;
  transform: translateY(28px);
}

.work-section-img {
  width:         100%;
  display:       block;
  border-radius: 4px;
}

.work-section-text {
  font-size:       1rem;
  line-height:     1.85;
  color:           var(--text);
  opacity:         0.85;
  background:      var(--surface);
  padding:         2rem 2.25rem;
  border-radius:   4px;
  display:         flex;
  flex-direction:  column;
  justify-content: center;
}

/* Alternate layout: even sections flip image to the right */
.work-section:nth-child(even) {
  grid-template-columns: 2fr 3fr;
}
.work-section:nth-child(even) .work-section-img  { order: 2; }
.work-section:nth-child(even) .work-section-text { order: 1; }

.work-section-text h2 {
  font-size:      1.2rem;
  font-weight:    600;
  letter-spacing: -0.01em;
  margin-bottom:  0.75rem;
  opacity:        1;
}

/* ================================================================
   ABOUT — HERO
   ================================================================ */
.landing { flex: 1; }

.hero {
  display:               grid;
  grid-template-columns: 1fr 42%;
  min-height:            80vh;
}

.profile-photo-wrapper {
  position:   relative;
  overflow:   hidden;
  background: var(--surface);
  order:      2;
}

.profile-photo-wrapper::after {
  content:        '';
  position:       absolute;
  inset:          0;
  background:     linear-gradient(to left, transparent 50%, var(--bg) 100%);
  pointer-events: none;
}

.profile-photo {
  width:           100%;
  height:          100%;
  object-fit:      cover;
  object-position: center top;
}

.blurb {
  padding:    4rem 2.5rem 4rem var(--side-pad);
  align-self: center;
  order:      1;
  animation:  fadeSlideFromLeft 0.9s ease-out 0s both;
}

@media (prefers-reduced-motion: reduce) {
  .blurb { animation: none; opacity: 1; }
}

.owner-name {
  font-size:      2.4rem;
  font-weight:    300;
  letter-spacing: -0.02em;
  margin-bottom:  1.25rem;
  line-height:    1.15;
}

.owner-name strong {
  font-weight: 700;
  display:     inline-block;
  transition:  transform 0.2s ease;
  cursor:      default;
}

.owner-name strong:hover { transform: scale(1.02); }

.owner-name strong.name-press { animation: namePress 0.3s ease both; }

.owner-bio {
  font-size:   1rem;
  line-height: 1.8;
  color:       var(--text);
  opacity:     0.8;
}

/* ================================================================
   FOOTER
   ================================================================ */
.site-footer {
  background: var(--surface);
  padding:    1.5rem var(--side-pad);
  margin-top: auto;
}

/* ================================================================
   PDF COMIC VIEWER (work item page)
   ================================================================ */
.footer-text {
  text-align:     center;
  font-size:      0.75rem;
  letter-spacing: 0.12em;
  color:          var(--text-muted);
}


.pdf-page-wrapper {
  margin:     0 auto 2.5rem;
  max-width:  680px;
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.pdf-page-wrapper.await-scroll {
  opacity:   0;
  transform: translateY(28px);
}

.pdf-page-wrapper canvas {
  width:         100%;
  height:        auto;
  display:       block;
  border-radius: 4px;
  box-shadow:    0 4px 24px rgba(77, 62, 60, 0.1);
}

.pdf-loading {
  color:     var(--text-muted);
  padding:   2rem 0;
  font-size: 0.9rem;
}

/* ================================================================
   PDF FLIPBOOK (work item section)
   ================================================================ */
.work-section-flipbook {
  width: 100%;
}

.flipbook-canvas {
  width:         100%;
  height:        auto;
  display:       block;
  border-radius: 4px;
  cursor:        pointer;
  transition:    transform 0.25s ease, opacity 0.18s ease;
  will-change:   transform, opacity;
}

.flipbook-canvas:hover {
  transform: scale(1.04);
}

.flipbook-canvas.flipbook-fade {
  opacity: 0;
}

.flipbook-counter {
  text-align:     center;
  font-size:      0.78rem;
  color:          var(--text-muted);
  margin-top:     0.6rem;
  letter-spacing: 0.06em;
}

/* ================================================================
   SCROLL ARROW (work item page)
   ================================================================ */
.scroll-arrow {
  position:   fixed;
  bottom:     2.25rem;
  left:       50%;
  transform:  translate(-50%, 0);
  color:      var(--text-muted);
  opacity:    1;
  animation:  arrowBounce 1.2s ease-in-out infinite;
  transition: opacity 0.45s ease;
  pointer-events: none;
  z-index:    5;
}

.scroll-arrow.hidden { opacity: 0; }

/* ================================================================
   BACK LINK (work item page)
   ================================================================ */
.back-link {
  display:         inline-flex;
  align-items:     center;
  gap:             0.4rem;
  color:           var(--text-muted);
  text-decoration: none;
  font-size:       0.85rem;
  letter-spacing:  0.04em;
  margin-bottom:   1.25rem;
  transition:      color 0.2s;
}

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

.back-link::before {
  content: '←';
  font-size: 1em;
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 680px) {
  /* --- About page hero --- */
  .hero {
    grid-template-columns: 1fr;
  }

  .profile-photo-wrapper {
    order:      1;
    height:     60vw;
    min-height: 240px;
  }

  .blurb {
    order:   2;
    padding: 2rem var(--side-pad);
  }

  .profile-photo-wrapper::after {
    background: linear-gradient(to bottom, transparent 55%, var(--bg) 100%);
  }

  .owner-name { font-size: 1.8rem; }

  /* --- Nav --- */
  .nav-left,
  .nav-icons { gap: 1.25rem; }
  .nav-signature { height: 2rem; }

  /* --- Work grid page --- */
  .work-page-main {
    padding: 1.75rem var(--side-pad) 3rem;
  }

  .work-grid {
    grid-template-columns: 1fr;
    gap:       1rem;
    max-width: 100%;   /* remove the 75% desktop cap */
  }

  /* --- Work item detail page --- */
  .work-item-main {
    padding: 1.75rem var(--side-pad) 4rem;
  }

  .work-item-title {
    font-size:     1.6rem;
    margin-bottom: 1.25rem;
  }

  /* Single-column sections; align-items:start prevents the image
     grid cell from stretching to match the text column height */
  .work-section {
    grid-template-columns: 1fr;
    gap:           1.75rem;
    margin-bottom: 3rem;
    align-items:   start;
  }

  /* Restore DOM order on even sections (text-first flip isn't
     needed in a single column) */
  .work-section:nth-child(even) .work-section-img,
  .work-section:nth-child(even) .work-section-flipbook,
  .work-section:nth-child(even) .work-section-text { order: unset; }

  /* Ensure images render at natural aspect ratio */
  .work-section-img {
    width:  100%;
    height: auto;
  }

  /* Tighter text block padding on small screens */
  .work-section-text {
    padding:   1.25rem 1.5rem;
    font-size: 0.9rem;
  }

  /* --- Bottom widgets: stack font-switcher above dark-mode toggle --- */
  .font-switcher {
    bottom: 4.9rem;   /* 1.5rem base + 2.6rem toggle height + 0.8rem gap */
    right:  1.5rem;
  }

  .font-switcher-label { display: none; }   /* save horizontal space */
  .font-switcher-name  { min-width: 6rem; }
}

/* Touch devices: card overlays are never triggered by hover,
   so keep them visible at a slightly reduced opacity */
@media (hover: none) {
  .work-card-overlay {
    opacity:    1;
    background: rgba(77, 62, 60, 0.68);
  }
}

/* ================================================================
   DARK MODE TOGGLE
   ================================================================ */
.theme-toggle {
  position:        fixed;
  bottom:          1.5rem;
  right:           1.5rem;
  width:           2.6rem;
  height:          2.6rem;
  border-radius:   50%;
  border:          1px solid var(--border);
  background:      var(--surface);
  color:           var(--text-muted);
  cursor:          pointer;
  display:         flex;
  align-items:     center;
  justify-content: center;
  z-index:         200;
  transition:      background-color 0.3s ease, border-color 0.3s ease,
                   color 0.2s ease, transform 0.2s ease;
  padding:         0;
}

.theme-toggle:hover {
  color:     var(--text);
  transform: scale(1.1);
}

.theme-toggle .icon-sun  { display: none;  }
.theme-toggle .icon-moon { display: block; }

[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none;  }

[data-theme="dark"] .site-header { background: var(--bg); }

/* ================================================================
   FONT SWITCHER WIDGET
   ================================================================ */
.font-switcher {
  position:        fixed;
  bottom:          1.5rem;
  right:           4.8rem;
  display:         flex;
  align-items:     center;
  gap:             0;
  background:      var(--surface);
  border:          1px solid var(--border);
  border-radius:   2rem;
  padding:         0 0.55rem;
  height:          2.6rem;
  z-index:         200;
  transition:      background-color 0.3s ease, border-color 0.3s ease;
}

.font-switcher-label {
  font-size:    0.62rem;
  font-weight:  600;
  letter-spacing: 0.08em;
  color:        var(--text-muted);
  padding:      0 0.35rem 0 0.2rem;
  white-space:  nowrap;
  text-transform: uppercase;
  user-select:  none;
}

.font-switcher-btn {
  background:   none;
  border:       none;
  cursor:       pointer;
  color:        var(--text-muted);
  padding:      0 0.3rem;
  display:      flex;
  align-items:  center;
  transition:   color 0.2s ease, transform 0.2s ease;
  line-height:  1;
}

.font-switcher-btn:hover {
  color:     var(--text);
  transform: scale(1.15);
}

.font-switcher-name {
  font-size:    0.72rem;
  font-weight:  500;
  color:        var(--text);
  padding:      0 0.45rem;
  white-space:  nowrap;
  min-width:    7rem;
  text-align:   center;
  user-select:  none;
}