/* section.css — section screen shell: top bar, view container, view headings,
   side item lists (shared with contact list), bottom hint bar. */

.section-screen {
  position: absolute;
  z-index: 20;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  overflow: hidden;
  background: var(--shell);
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transform: translate3d(1.2rem, 0, 0);
  transition: opacity 180ms ease, transform 240ms cubic-bezier(0.16, 0.86, 0.2, 1), visibility 0s linear 240ms;
}

.portfolio[data-view="section"] .section-screen {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
  transform: translate3d(0, 0, 0);
  transition-delay: 0s;
}

.section-navigation {
  position: absolute; z-index: 30;
  top: max(1rem, env(safe-area-inset-top, 0px));
  right: max(var(--edge), env(safe-area-inset-right, 0px));
}
.section-back {
  display: inline-flex; align-items: center; gap: .65rem;
  min-width: 44px; min-height: 44px; padding: .7rem 1rem;
  border: 1px solid var(--line-2); border-radius: 3px;
  background: var(--shell); color: var(--text-2);
  font: 500 .75rem/1.2 var(--mono);
  transition: color 120ms ease, border-color 120ms ease;
}
.section-back span { font-size: 1.2rem; }
.section-back:hover, .section-back:focus-visible { color: var(--text); border-color: var(--red-ink); }

/* Ambient layer: soft red glow seat + vignette (no texture) */

.section-screen::after {
  position: absolute;
  z-index: 0;
  content: "";
  pointer-events: none;
  inset: 0;
  background:
    radial-gradient(46% 42% at 68% 36%, rgba(224, 58, 44, 0.055), transparent 62%),
    radial-gradient(130% 100% at 50% 45%, transparent 52%, rgba(3, 4, 7, 0.6) 100%);
}

.section-views {
  position: absolute;
  z-index: 1;
  top: 0;
  right: 0;
  bottom: var(--control-height);
  left: 0;
  overflow: hidden;
}

.section-view {
  position: absolute;
  display: none;
  overflow: hidden;
  inset: 0;
}

.portfolio[data-section-open="experience"] [data-section="experience"],
.portfolio[data-section-open="skills"] [data-section="skills"],
.portfolio[data-section-open="resume"] [data-section="resume"],
.portfolio[data-section-open="contact"] [data-section="contact"] {
  display: block;
}

.section-controls {
  right: 0;
  bottom: 0;
  left: 0;
  justify-content: flex-end;
  padding: 0 var(--edge);
  font-size: clamp(0.68rem, 0.74vw, 0.76rem);
}

/* View heading + side list ------------------------------------------------ */

.view-heading {
  position: absolute;
  z-index: 5;
  top: clamp(1.4rem, 3.2vh, 2.6rem);
  left: var(--edge);
}

.view-heading > span {
  color: var(--text-3);
  font: 500 clamp(0.68rem, 0.72vw, 0.76rem)/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.view-heading h2 {
  margin: 0.35rem 0 0;
  font: 700 clamp(3.2rem, 5.4vw, 5.8rem)/0.82 var(--display);
  letter-spacing: -0.015em;
  text-transform: uppercase;
}

.side-list {
  position: absolute;
  z-index: 10;
  top: clamp(7.2rem, 16.5vh, 11rem);
  bottom: clamp(1rem, 3vh, 2.4rem);
  left: var(--edge);
  display: grid;
  width: min(31vw, 34rem);
  align-content: start;
  overflow-y: auto;
  overscroll-behavior: contain;
}

/* Shared item rows: side list buttons + contact links (contact.css overrides) */

.side-list button,
.contact-list a {
  position: relative;
  display: grid;
  width: 100%;
  min-height: clamp(3.9rem, 8.6vh, 5.6rem);
  align-items: center;
  padding: 0.7rem 1rem 0.7rem 1.15rem;
  border-bottom: 1px solid var(--line);
  color: rgba(237, 238, 233, 0.4);
  text-align: left;
  transition: color 100ms ease, transform 150ms cubic-bezier(0.18, 0.88, 0.22, 1);
  grid-template-columns: 2.4rem 1fr;
}

.side-list button b,
.contact-list a b {
  color: var(--text-3);
  font: 500 clamp(0.68rem, 0.74vw, 0.78rem)/1 var(--mono);
  grid-row: span 2;
  transition: color 120ms ease;
}

.side-list button span,
.contact-list a span {
  align-self: end;
  font: 600 clamp(1.25rem, 1.8vw, 1.9rem)/1 var(--display);
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.side-list button i,
.contact-list a i {
  align-self: start;
  margin-top: 0.4rem;
  color: var(--text-3);
  font: 500 clamp(0.68rem, 0.72vw, 0.76rem)/1.3 var(--body);
  font-style: normal;
  letter-spacing: 0.01em;
}

.side-list button::before,
.contact-list a::before {
  position: absolute;
  width: 4px;
  background: var(--red);
  content: "";
  inset: 0 auto 0 0;
  opacity: 0;
  transform: scaleY(0.4);
  transition: opacity 150ms ease, transform 180ms ease;
}

.side-list button:hover,
.contact-list a:hover {
  color: var(--text-2);
}

.side-list button[aria-selected="true"],
.contact-list a[aria-selected="true"] {
  z-index: 1;
  background: linear-gradient(90deg, var(--red), var(--red-deep));
  border-bottom-color: rgba(224, 58, 44, 0.5);
  color: #fff;
  box-shadow: 0 0.9rem 2.2rem rgba(224, 58, 44, 0.22);
  transform: translateX(0.35rem);
}

.side-list button[aria-selected="true"]::before,
.contact-list a[aria-selected="true"]::before {
  opacity: 1;
  transform: scaleY(1);
}

.side-list button[aria-selected="true"] b,
.contact-list a[aria-selected="true"] b {
  color: rgba(255, 255, 255, 0.72);
}

.side-list button[aria-selected="true"] i,
.contact-list a[aria-selected="true"] i {
  color: rgba(255, 255, 255, 0.78);
}

.side-list button:focus-visible,
.contact-list a:focus-visible {
  outline-offset: -3px;
}

@media (max-width: 1100px) {
  .side-list {
    width: min(36vw, 30rem);
  }
}

@media (max-width: 800px) {
  .section-navigation {
    top: 0; right: 0; left: 0;
    display: flex; align-items: center;
    height: calc(3.5rem + env(safe-area-inset-top, 0px));
    padding: env(safe-area-inset-top, 0px) max(1rem, env(safe-area-inset-right, 0px)) 0 max(1rem, env(safe-area-inset-left, 0px));
    border-bottom: 1px solid var(--line); background: var(--shell);
  }
  .section-back { padding: .6rem .8rem; }
  .section-views { top: calc(3.5rem + env(safe-area-inset-top, 0px)); }
  .section-controls {
    height: calc(var(--control-height) + env(safe-area-inset-bottom, 0px));
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
  .section-views { bottom: calc(var(--control-height) + env(safe-area-inset-bottom, 0px)); }
  .section-controls > span:last-child { display: none; }
  .section-controls > span:first-child { font-size: .65rem; }
  .view-heading {
    top: 1rem;
    left: max(1.15rem, env(safe-area-inset-left, 0px));
  }

  .view-heading > span {
    font-size: 0.66rem;
  }

  .view-heading h2 {
    font-size: 2.5rem;
  }

  .side-list {
    top: 4.7rem;
    right: 0;
    bottom: auto;
    left: 0;
    display: flex;
    width: 100%;
    padding: 0 max(1.15rem, env(safe-area-inset-right, 0px)) 0.5rem max(1.15rem, env(safe-area-inset-left, 0px));
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
  }

  .side-list button,
  .contact-list a {
    width: min(74vw, 17rem);
    min-width: min(74vw, 17rem);
    min-height: 4.4rem;
    scroll-snap-align: start;
  }

  .side-list button span {
    font-size: 1.1rem;
  }

  .side-list button i {
    font-size: 0.7rem;
  }

  .side-list button[aria-selected="true"] {
    transform: translateX(0);
  }
}

@media (max-height: 700px) and (min-width: 801px) {
  .view-heading h2 {
    font-size: clamp(2.6rem, 4.6vw, 4.2rem);
  }

  .side-list {
    top: clamp(6rem, 15vh, 8rem);
  }

  .side-list button,
  .contact-list a {
    min-height: clamp(3.4rem, 9.5vh, 4.6rem);
  }
}

@media (max-width: 800px) and (max-height: 500px) and (orientation: landscape) {
  .view-heading { top: .5rem; }
  .view-heading h2 { font-size: 1.8rem; }
  .view-heading > span { display: none; }
  .side-list { top: 2.8rem; }
  .side-list button { min-height: 3.3rem; padding-top: .4rem; padding-bottom: .4rem; }
}