/* The approved folder homepage uses the site's existing fonts and color tokens. */
@font-face { font-family: 'DM Mono'; src: url('./assets/fonts/dm-mono-latin-400-normal.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
[hidden] { display: none !important; }
.site-header.portal-header {
  position: relative;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas: 'left right';
  align-items: center;
  gap: 16px;
  width: 100%;
  min-height: 88px;
  margin: 0;
  padding: 24px clamp(20px, 3.4vw, 64px);
  direction: ltr;
}
.portal-header-left { grid-area: left; display: flex; align-items: center; gap: 12px; min-width: 0; }
.portal-header-right { grid-area: right; justify-self: end; display: flex; align-items: center; gap: 12px; }
.tehran-clock { margin: 0; color: var(--muted); font: 400 11px/1.5 'DM Mono', monospace; white-space: nowrap; font-variant-numeric: tabular-nums; }
body:not([data-page="home"]) .tehran-clock { display: none; }
.portal-header .display-controls { flex: 0 0 auto; }
.portal-header #cv-link { width: auto; font-size: 13px; }
.library-back, .case-back-link { border-radius: 999px; }
.portal-header .portal-back { flex: 0 0 auto; gap: 8px; min-height: 36px; padding: 6px 10px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface); box-shadow: var(--control-shadow); font-size: 13px; line-height: 22px; white-space: nowrap; }
.portal-header .portal-back:hover { background: var(--card-hover); box-shadow: var(--card-shadow); text-decoration: none; }
.portal-back .library-back-icon { width: 18px; height: 18px; flex-basis: 18px; }
:root:lang(fa) .portal-back, :root:lang(fa) #cv-link { direction: rtl; }
:root:lang(fa) .portal-header .portal-back { font-size: 16px; }
.home-scene { display: flex; flex-direction: column; align-items: center; min-height: calc(100svh - 88px); padding-top: clamp(20px, 4vh, 60px); overflow: clip; outline: none; }
.centered-intro { position: relative; z-index: 2; width: min(640px, calc(100% - 44px)); text-align: center; }
.centered-intro h1 { margin: 0; line-height: 1.5; }
:root body[data-page="home"] #greeting { font-size: 17px; font-weight: 500; }
.centered-intro .bio { margin-top: 10px; }
.centered-intro .contact-block { margin-top: 25px; }
.centered-intro .contact-links { justify-content: center; gap: 6px 18px; margin-top: 4px; }
.folder-navigation { position: relative; z-index: 2; display: flex; justify-content: center; align-items: flex-start; width: min(480px, calc(100% - 28px)); gap: 6px; margin: 36px auto 0; }
.folder-button { position: relative; flex: 1 1 0; display: flex; flex-direction: column; align-items: center; min-width: 0; gap: 5px; padding: 0 2px 6px; border-radius: 12px; color: var(--muted); font-size: 12px; line-height: 1.45; text-decoration: none; -webkit-tap-highlight-color: transparent; }
.folder-button:is(:hover, :focus-visible) { z-index: 5; color: var(--text); }
.folder-visual { position: relative; display: block; width: 106px; max-width: 100%; height: 100px; isolation: isolate; transform-origin: 50% 80%; transition: transform 550ms cubic-bezier(.2,.8,.2,1); }
.folder-button:is(:hover, :focus-visible) .folder-visual { transform: scale(1.003); }
.folder-button :is(.folder-back, .folder-front) { position: absolute; left: 0; bottom: 0; display: block; width: 106px; height: 84px; max-width: 100%; object-fit: contain; filter: drop-shadow(0 7px 6px #00000012); transition: transform 550ms cubic-bezier(.2,.8,.2,1), filter 400ms ease; }
.folder-back { z-index: 0; }
.folder-button .folder-front { z-index: 3; transform-origin: 50% 95%; }
.folder-button:is(:hover, :focus-visible) .folder-front { transform: translateY(1px); }
.folder-items { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.folder-button .folder-thumb { --offset: 0px; --lift: -18px; --angle: -2deg; position: absolute; bottom: 18px; left: 50%; display: block; width: 62px; height: 48px; max-width: none; border: 3px solid #fff; border-radius: 6px; object-fit: cover; background: #fff; box-shadow: 0 2px 5px #0003; transform: translateX(calc(-50% + var(--offset))) translateY(var(--lift)) rotate(var(--angle)); transition: transform 650ms cubic-bezier(.18,.9,.25,1.2); }
.folder-button .folder-thumb:first-child { --offset: -22px; --lift: -9px; --angle: -14deg; }
.folder-button .folder-thumb:nth-child(2) { z-index: 2; transition-delay: 35ms; }
.folder-button .folder-thumb:nth-child(3) { --offset: 22px; --lift: -7px; --angle: 12deg; transition-delay: 70ms; }
.folder-button .folder-thumb:only-child { --offset: 0px; --lift: -18px; --angle: -4deg; }
.folder-button:is(:hover, :focus-visible) .folder-thumb { transform: translateX(calc(-50% + var(--offset))) translateY(calc(var(--lift) - 26px)) rotate(var(--angle)); }
.folder-button:is(:hover, :focus-visible) .folder-thumb:nth-child(2) { transform: translateX(-50%) translateY(-57px) rotate(-2deg); }
.folder-button[data-section="experience"] .folder-thumb { width: 50px; height: 50px; border-radius: 50%; object-fit: contain; padding: 4px; }
.folder-button[data-section="about"] .folder-thumb { width: 40px; height: 58px; }
.folder-thumb > .book-cover { width: 100%; height: 100%; border-radius: 2px; box-shadow: none; }
.folder-caption { font-weight: 600; white-space: nowrap; }
:root:lang(fa) .folder-button { font-size: 15px; }
:root[data-theme="dark"] .folder-button :is(.folder-back, .folder-front) { filter: brightness(.86) drop-shadow(0 7px 8px #0005); }
.portrait-stage { position: relative; flex: 1 0 clamp(260px, 36svh, 450px); width: 100%; min-height: 260px; margin-top: 16px; overflow: hidden; }
.home-portrait { position: absolute; bottom: -4px; left: 50%; width: auto; height: 100%; max-width: 100%; object-fit: contain; transform: translateX(-50%); filter: brightness(.87); -webkit-mask-image: linear-gradient(#000 0 76%, transparent 100%); mask-image: linear-gradient(#000 0 76%, transparent 100%); }
.portrait-blur { position: absolute; z-index: 1; bottom: 0; inset-inline: 0; height: 90px; pointer-events: none; -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); -webkit-mask-image: linear-gradient(transparent, #000 75%); mask-image: linear-gradient(transparent, #000 75%); background: linear-gradient(transparent, var(--page-bg)); }
body[data-page="home"] > :is(.site-footer, .viewport-blur) { display: none; }
body[data-page="book"] .library-book-detail { margin-top: 36px; }
@media (min-width: 701px) and (max-height: 780px) {
  .site-header.portal-header { min-height: 72px; padding-block: 18px; }
  .home-scene { min-height: calc(100svh - 72px); padding-top: 10px; }
  .centered-intro .contact-block { margin-top: 15px; }
  .folder-navigation { margin-top: 22px; }
  .portrait-stage { flex-basis: 220px; min-height: 220px; margin-top: 10px; }
}
@media (max-width: 700px) {
  .site-header.portal-header { grid-template-columns: minmax(0, 1fr); grid-template-areas: 'left' 'right'; min-height: 116px; padding: 20px; gap: 13px 8px; }
  .portal-header .display-controls { gap: 8px; }
  .portal-header #cv-link { gap: 7px; padding-inline: 10px; font-size: 13px; }
  .portal-header #cv-link img { width: 17px; height: 17px; flex-basis: 17px; }
  :root:lang(fa) .portal-header #cv-link { font-size: 13px; }
  .home-scene { min-height: calc(100svh - 116px); padding-top: 20px; }
  .centered-intro { width: calc(100% - 40px); }
  .centered-intro .contact-block { margin-top: 20px; }
  .centered-intro .contact-links { gap: 6px 15px; }
  .folder-navigation { width: calc(100% - 24px); gap: 2px; margin-top: 26px; }
  .folder-button { font-size: 11px; }
  .folder-visual { width: 76px; height: 83px; }
  .folder-button :is(.folder-back, .folder-front) { width: 76px; height: 60px; }
  .folder-button .folder-thumb { width: 43px; height: 35px; bottom: 12px; --lift: -16px; }
  .folder-button .folder-thumb:first-child { --offset: -14px; --lift: -9px; }
  .folder-button .folder-thumb:nth-child(3) { --offset: 14px; --lift: -7px; }
  .folder-button:is(:hover, :focus-visible) .folder-thumb { transform: translateX(calc(-50% + var(--offset))) translateY(calc(var(--lift) - 17px)) rotate(var(--angle)); }
  .folder-button:is(:hover, :focus-visible) .folder-thumb:nth-child(2) { transform: translateX(-50%) translateY(-43px) rotate(-2deg); }
  .folder-button[data-section="experience"] .folder-thumb { width: 34px; height: 34px; padding: 3px; }
  .folder-button[data-section="about"] .folder-thumb { width: 28px; height: 41px; }
  :root:lang(fa) .folder-button { font-size: 14px; }
  .portrait-stage { flex-basis: 270px; min-height: 270px; }
}
@media (max-width: 360px) {
  .site-header.portal-header { padding-inline: 16px; }
  .folder-button { font-size: 10px; }
  .portrait-stage { flex-basis: 250px; min-height: 250px; }
}
@media (prefers-reduced-motion: reduce) {
  .folder-button :is(.folder-front, .folder-back, .folder-thumb, .folder-visual) { transition: none !important; }
  .folder-button:is(:hover, :focus-visible) .folder-visual { transform: none; }
  .folder-button:is(:hover, :focus-visible) .folder-front { transform: none; }
}