/* ==========================================================================
   Mohamed Sameh portfolio: components
   Video player (autoplay + hover controls), before/after compare slider,
   case-study layout. Tokens inherited from style.css (:root).
   ========================================================================== */

/* ---------- Smart video player ---------- */
.smart-video {
  position: relative;
  display: block;
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  background: #0f172a;
  border: 1px solid color-mix(in srgb, var(--accent-text), transparent 80%);
}

.smart-video video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #0f172a;
}

.smart-video.is-portrait video {
  aspect-ratio: 9 / 16;
  max-height: 72vh;
  margin: 0 auto;
  width: auto;
  max-width: 100%;
}

.smart-video-bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: linear-gradient(transparent, rgba(10, 10, 10, 0.72));
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.22s ease, transform 0.22s ease;
  pointer-events: none;
}

.smart-video:hover .smart-video-bar,
.smart-video:focus-within .smart-video-bar,
.smart-video.show-bar .smart-video-bar,
.smart-video.paused .smart-video-bar {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.sv-btn {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 0.8rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.sv-btn:hover {
  background: var(--special-accent);
}

.sv-track {
  flex: 1 1 auto;
  appearance: none;
  -webkit-appearance: none;
  height: 5px;
  border-radius: 99px;
  background: linear-gradient(
    to right,
    var(--special-accent) 0%,
    var(--special-accent) var(--fill, 0%),
    rgba(255, 255, 255, 0.35) var(--fill, 0%),
    rgba(255, 255, 255, 0.35) 100%
  );
  outline: none;
  cursor: pointer;
  padding: 0;
  border: none;
}

.sv-track::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--special-accent);
  cursor: pointer;
}

.sv-track::-moz-range-thumb {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--special-accent);
  cursor: pointer;
}

.sv-time {
  flex: 0 0 auto;
  font-family: "Outfit", sans-serif;
  font-size: 0.72rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.9);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.smart-video-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  font-family: "Outfit", sans-serif;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  background: rgba(10, 10, 10, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 4px 10px;
  border-radius: 99px;
  backdrop-filter: blur(4px);
  pointer-events: none;
}

/* ---------- Before / After compare slider ----------
   Two images stacked; top layer clipped with --pos (x / 1-x). */
.compare {
  position: relative;
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--accent-text), transparent 80%);
  background: #0f172a;
  --pos: 50%;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}

.compare img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  pointer-events: none;
  -webkit-user-drag: none;
}

.compare-landscape img {
  aspect-ratio: 16 / 10;
}

.compare-after {
  position: absolute;
  inset: 0;
  clip-path: inset(0 calc(100% - var(--pos)) 0 0);
}

.compare-after img {
  width: 100%;
  height: 100%;
}

.compare-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--pos);
  width: 2px;
  background: #fff;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.45);
  transform: translateX(-50%);
  pointer-events: none;
}

.compare-knob {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #fff;
  color: var(--accent-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: -0.1em;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
  white-space: nowrap;
}

.compare-tag {
  position: absolute;
  top: 10px;
  font-family: "Outfit", sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  background: rgba(10, 10, 10, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 4px 10px;
  border-radius: 99px;
  backdrop-filter: blur(4px);
  pointer-events: none;
}

.compare-tag.before { right: 10px; }
.compare-tag.after { left: 10px; }

.compare-range {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: ew-resize;
  margin: 0;
}

/* ---------- Case-study page layout ---------- */
.case-hero {
  max-width: 1000px;
  margin: 0 auto;
  padding: 9rem 24px 0;
}

.case-kicker {
  font-family: "Outfit", sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--special-accent);
  margin-bottom: 12px;
}

.case-title {
  font-family: "Tanker-Regular", sans-serif;
  font-size: clamp(2.6rem, 7vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: 0.01em;
  color: var(--accent-main);
  margin-bottom: 14px;
}

.case-lede {
  font-family: "Outfit", sans-serif;
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  font-weight: 300;
  line-height: 1.6;
  color: var(--accent-text);
  max-width: 720px;
}

.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 22px 0 30px;
  padding: 16px 0;
  border-top: 1px solid color-mix(in srgb, var(--accent-text), transparent 82%);
  border-bottom: 1px solid color-mix(in srgb, var(--accent-text), transparent 82%);
  font-family: "Outfit", sans-serif;
  font-size: 0.88rem;
  color: var(--accent-text);
}

.case-meta strong {
  color: var(--accent-main);
  font-weight: 600;
}

.case-body {
  max-width: 1000px;
  margin: 0 auto;
  padding: 8px 24px 40px;
}

.case-body h2 {
  font-family: "Outfit", sans-serif;
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--accent-main);
  margin: 44px 0 14px;
  scroll-margin-top: 90px;
}

.case-body h3 {
  font-family: "Outfit", sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-main);
  margin: 26px 0 10px;
}

.case-body p,
.case-body li {
  font-family: "Outfit", sans-serif;
  font-size: 1.02rem;
  font-weight: 300;
  line-height: 1.75;
  color: var(--accent-text);
}

.case-body p { margin-bottom: 14px; }
.case-body ul, .case-body ol { margin: 10px 0 16px 24px; }
.case-body li { margin-bottom: 6px; }
.case-body strong { font-weight: 600; color: var(--text-dark); }
.case-body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: #e4e8ec;
  padding: 2px 7px;
  border-radius: 5px;
  color: #1e293b;
}

.case-media { margin: 26px 0; }
.case-media figcaption {
  font-family: "Outfit", sans-serif;
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--accent-secondary);
  margin-top: 10px;
  line-height: 1.6;
}

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

@media (max-width: 720px) {
  .compare-grid { grid-template-columns: 1fr; }
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 6px 0 0;
}

.tag-pill {
  font-family: "Outfit", sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent-text);
  border: 1px solid color-mix(in srgb, var(--accent-text), transparent 70%);
  padding: 4px 12px;
  border-radius: 99px;
  background: transparent;
  white-space: nowrap;
}

.shelf {
  border: 1px solid color-mix(in srgb, var(--accent-text), transparent 80%);
  border-radius: 12px;
  padding: 20px 22px;
  margin: 14px 0;
  background: color-mix(in srgb, var(--accent-light), transparent 40%);
}

.shelf a {
  font-family: "Outfit", sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--special-accent);
  text-decoration: none;
}

.shelf a:hover { text-decoration: underline; }
.shelf p {
  font-size: 0.88rem;
  margin: 4px 0 0;
}

/* Featured cards on home (image top + body) */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
  box-sizing: border-box;
}

@media (max-width: 760px) {
  .feature-grid { grid-template-columns: 1fr; }
}

.feature-card {
  display: flex;
  flex-direction: column;
  border: 1px solid color-mix(in srgb, var(--accent-text), transparent 80%);
  border-radius: 14px;
  overflow: hidden;
  text-decoration: none;
  background: var(--accent-light);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  border-color: var(--special-accent);
  transform: translateY(-3px);
}

.feature-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.feature-body { padding: 20px 22px 22px; }

.feature-body h3 {
  font-family: "Outfit", sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-main);
  margin-bottom: 8px;
}

.feature-card:hover .feature-body h3 { color: var(--special-accent); }

.feature-body p {
  font-family: "Outfit", sans-serif;
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.65;
  color: var(--accent-text);
  margin-bottom: 12px;
}

.section-heading {
  font-family: "Tanker-Regular", sans-serif;
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  color: var(--accent-main);
  text-align: center;
  margin: 90px 0 8px;
  letter-spacing: 0.01em;
}

.section-sub {
  font-family: "Outfit", sans-serif;
  font-size: 1rem;
  font-weight: 300;
  color: var(--accent-text);
  text-align: center;
  max-width: 640px;
  margin: 0 auto 34px;
  line-height: 1.7;
  padding: 0 24px;
}

.center-cta { text-align: center; margin: 40px 0 90px; }

.btn-accent {
  display: inline-block;
  font-family: "Outfit", sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent-main);
  padding: 13px 30px;
  border-radius: 10px;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.2s ease;
}

.btn-accent:hover {
  background: var(--special-accent);
  transform: translateY(-2px);
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .feature-card:hover { transform: none; }
}

/* ---------- Signature logo ---------- */
@font-face {
  font-family: 'Allura';
  src: url('../fonts/Allura/Allura-Regular.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
  font-style: normal;
}

.signature {
  font-family: 'Allura', cursive;
  font-size: 2rem;
  line-height: 1;
  color: var(--accent-main);
  text-decoration: none;
  white-space: nowrap;
  padding: 2px 4px;
}

.logo-link,
.logo-link:hover,
.logo-link:visited {
  text-decoration: none;
  border-bottom: none;
}

a.signature:hover { color: var(--special-accent); }

.footer-signature {
  font-family: 'Allura', cursive;
  font-size: clamp(2.6rem, 7vw, 4rem);
  font-weight: 400;
  color: var(--background-color);
  margin: 0 0 8px 0;
  line-height: 1.2;
}

/* ---------- Toolkit icon row ---------- */
.tech-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 10px 18px;
  margin-top: 14px;
  max-width: 760px;
}

.tech-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "Outfit", sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-text);
  background: color-mix(in srgb, var(--accent-light), transparent 30%);
  border: 1px solid color-mix(in srgb, var(--accent-text), transparent 82%);
  border-radius: 99px;
  padding: 6px 14px 6px 10px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.tech-item:hover {
  transform: translateY(-2px);
  border-color: var(--special-accent);
}

.tech-item img {
  height: 22px;
  width: auto;
  max-width: 130px;
  object-fit: contain;
  display: block;
  flex: none;
}

/* Thin-stroke marks need a bump to match the visual weight of the row */
.tech-item img.boost { height: 25px; }

/* Oversized wordmarks step down slightly */
.tech-item img.shrink { height: 19px; }

/* Logos with baked-in wordmarks need no text label next to them */
.tech-item.icon-only {
  padding: 7px 14px;
}

/* ---------- V-expand (elegant disclosure) ---------- */
.expand {
  border: 1px solid color-mix(in srgb, var(--accent-text), transparent 82%);
  border-radius: 12px;
  margin: 14px 0;
  background: transparent;
  overflow: hidden;
}

.expand > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  font-family: "Outfit", sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-main);
  user-select: none;
}

.expand > summary::-webkit-details-marker { display: none; }

.expand > summary:hover { color: var(--special-accent); }

.expand-chev {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--accent-text), transparent 60%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--accent-text);
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.expand[open] .expand-chev {
  transform: rotate(180deg);
  background: var(--accent-main);
  color: #fff;
  border-color: var(--accent-main);
}

.expand-body { padding: 2px 18px 18px; }

.expand-body p,
.expand-body li {
  font-family: "Outfit", sans-serif;
  font-size: 0.98rem;
  font-weight: 300;
  line-height: 1.75;
  color: var(--accent-text);
}

.expand-body p { margin-bottom: 12px; }
.expand-body ul { margin: 8px 0 12px 22px; }
.expand-body strong { font-weight: 600; color: var(--text-dark); }

/* ---------- Playful name highlight ---------- */
.name-play {
  color: var(--special-accent);
  font-weight: inherit;
}

/* ---------- Slide / doc figure gallery ---------- */
.doc-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 22px 0;
}

@media (max-width: 720px) {
  .doc-gallery { grid-template-columns: 1fr; }
}

.doc-gallery figure { margin: 0; }

.doc-gallery img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--accent-text), transparent 80%);
  display: block;
  background: #fff;
}

.slide-ref {
  font-family: "Outfit", sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--special-accent);
}

/* ---------- Full-deck gallery (complete presentations, lazy) ---------- */
.deck-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 16px;
  margin: 22px 0;
}

.deck-gallery figure { margin: 0; }

.deck-gallery img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: top;
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--accent-text), transparent 80%);
  display: block;
  background: #fff;
}

.deck-gallery figcaption {
  font-family: "Outfit", sans-serif;
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--accent-secondary);
  margin-top: 5px;
}

.deck-gallery.portrait img {
  aspect-ratio: 3 / 4;
}

/* ---------- Source and live links box ---------- */
.source-box {
  border: 1px solid color-mix(in srgb, var(--accent-text), transparent 78%);
  border-radius: 12px;
  padding: 18px 20px;
  margin: 16px 0;
  background: color-mix(in srgb, var(--accent-light), transparent 40%);
}

.source-box h4 {
  font-family: "Outfit", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-main);
  margin-bottom: 10px;
}

.source-box ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.source-box a {
  font-family: "Outfit", sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--special-accent);
  text-decoration: none;
}

.source-box a:hover { text-decoration: underline; }

.source-box small {
  font-family: "Outfit", sans-serif;
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--accent-secondary);
  margin-left: 6px;
}

/* ---------- Home project sections ---------- */
.home-project {
  max-width: 1000px;
  margin: 0 auto 30px;
  padding: 26px 24px 8px;
  border-top: 1px solid color-mix(in srgb, var(--accent-text), transparent 85%);
}

.home-project-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  margin-bottom: 6px;
}

.home-project-head h3 {
  font-family: "Outfit", sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent-main);
  margin: 0;
}

.home-project-head h3 a { color: inherit; text-decoration: none; }
.home-project-head h3 a:hover { color: var(--special-accent); }

.home-project-year {
  font-family: "Outfit", sans-serif;
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--accent-secondary);
}

.home-project-lede {
  font-family: "Outfit", sans-serif;
  font-size: 1.02rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--accent-text);
  max-width: 760px;
  margin: 8px 0 16px;
}

/* KaTeX display spacing inside case body */
.case-body .katex-display {
  margin: 18px 0;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 6px 2px;
}

/* ---------- Click-to-inspect zoom overlay (js/zoom.js) ---------- */
img[data-zoom] { cursor: zoom-in; transition: transform .35s ease, box-shadow .35s ease; }
img[data-zoom]:hover { transform: scale(1.015); box-shadow: 0 14px 40px rgba(10,15,14,.22); }
.zoom-badge { display: inline-flex; align-items: center; gap: 6px; margin-top: 8px; padding: 6px 11px; border-radius: 99px; font: 600 .66rem/1 "Outfit", sans-serif; letter-spacing: .04em; color: #fff; background: #182327; border: 1px solid #182327; }
.zoom-badge::before { content: "⤢"; font-size: .8rem; }
.ir-dark-panel .zoom-badge { color: #fff; background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.3); }
.zoom-overlay { position: fixed; inset: 0; z-index: 9999; display: flex; align-items: center; justify-content: center; background: rgba(9,13,12,.92); backdrop-filter: blur(10px); }
.zoom-overlay[hidden] { display: none; }
.zoom-stage { margin: 0; max-width: min(1240px, 94vw); max-height: 88vh; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.zoom-img { max-width: 100%; max-height: 78vh; object-fit: contain; border-radius: 10px; background: #0d1517; touch-action: none; }
.zoom-cap { color: rgba(255,255,255,.72); font: 300 .8rem/1.5 "Outfit", sans-serif; text-align: center; max-width: 640px; }
.zoom-hint { position: absolute; bottom: 18px; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,.45); font: 500 .68rem/1 "Outfit", sans-serif; letter-spacing: .06em; white-space: nowrap; }
.zoom-close { position: absolute; top: 16px; right: 18px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,.3); background: rgba(255,255,255,.08); color: #fff; font-size: 1.4rem; line-height: 1; cursor: pointer; }
.zoom-close:hover { background: rgba(255,255,255,.2); }
@media (prefers-reduced-motion: reduce) {
  img[data-zoom], img[data-zoom]:hover { transform: none; }
}