/* Page sections: layout and rhythm. Components live in components.css. */

@layer sections {
  /* ── Generic section rhythm ── */
  .section { padding-block: var(--space-section); }
  .section--tight { padding-block: var(--space-section-tight); }
  .section--alt { background: var(--surface-1); border-block: 1px solid var(--border-subtle); }
  .section .section-heading + * { margin-block-start: var(--space-12); }

  /* ── Hero: dot "water surface" canvas behind the copy ── */
  .hero {
    position: relative; isolation: isolate; overflow: hidden;
    padding-block: clamp(4.5rem, 2.5rem + 8vw, 10rem) clamp(4.5rem, 2.5rem + 6vw, 8.5rem);
  }
  /* Phones: dots stay in the top corner, away from the copy. Wider screens: they surround the headline. */
  .hero__water {
    position: absolute; inset: 0; z-index: -1; inline-size: 100%; block-size: 100%; pointer-events: none;
    -webkit-mask-image: radial-gradient(110% 55% at 100% 0%, #000 15%, transparent 75%);
    mask-image: radial-gradient(110% 55% at 100% 0%, #000 15%, transparent 75%);
  }
  @media (min-width: 48rem) {
    .hero__water {
      -webkit-mask-image: radial-gradient(85% 90% at 70% 35%, #000 25%, transparent 78%);
      mask-image: radial-gradient(85% 90% at 70% 35%, #000 25%, transparent 78%);
    }
  }
  .hero__glow {
    position: absolute; z-index: -2; inset-block-start: -30%; inset-inline-start: -12%;
    inline-size: 62%; block-size: 95%; border-radius: 50%; pointer-events: none;
    background: radial-gradient(circle at center, var(--glow-azure) 0%, transparent 66%);
    filter: blur(20px); animation: dj-drift-a calc(var(--dur-ambient) * 2.6) var(--ease-in-out) infinite;
  }
  .hero__title {
    margin-block-start: var(--space-6);
    font-size: clamp(2.25rem, 1.5rem + 3.4vw, 4.25rem); letter-spacing: var(--tracking-display); line-height: 1.06;
  }
  .hero__line { display: block; }
  .hero__line--muted { color: var(--text-muted); }
  .hero__lead { margin-block-start: var(--space-8); max-inline-size: var(--measure-lead); font-size: var(--fs-lead); color: var(--text-muted); }
  .hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-block-start: var(--space-10); }

  /* ── Card grid (interests) ── */
  .card-grid {
    display: grid; gap: var(--space-4); list-style: none; padding: 0;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 15.5rem), 1fr));
  }
  .card-grid > li { display: flex; }
  .card-grid > li > .card { inline-size: 100%; }
  .card-grid > li:nth-child(2) { --reveal-delay: 70ms; }
  .card-grid > li:nth-child(3) { --reveal-delay: 140ms; }
  .card-grid > li:nth-child(4) { --reveal-delay: 210ms; }
  .card-grid > li:nth-child(5) { --reveal-delay: 280ms; }

  /* Five interests, the first ones matter most: one column; tablet 1 wide + 2 + 2; desktop 2 wide on top, 3 below. */
  .card-grid--five { grid-template-columns: minmax(0, 1fr); }
  @media (min-width: 40rem) {
    .card-grid--five { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .card-grid--five > li:first-child { grid-column: 1 / -1; }
  }
  @media (min-width: 60rem) {
    .card-grid--five { grid-template-columns: repeat(6, minmax(0, 1fr)); }
    .card-grid--five > li { grid-column: span 2; }
    .card-grid--five > li:nth-child(-n + 2) { grid-column: span 3; }
  }
  .card__index { position: absolute; inset-block-start: var(--space-6); inset-inline-end: var(--space-6); font-family: var(--font-mono); font-size: var(--fs-micro); color: var(--text-faint); }


  /* ── Projects: text beside a framed screenshot, alternating sides ── */
  .projects { display: flex; flex-direction: column; gap: clamp(3rem, 2rem + 4vw, 5.5rem); list-style: none; padding: 0; }
  .project { display: grid; gap: var(--space-8); align-items: center; }
  @media (min-width: 60rem) {
    .project { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--space-16); }
    .project--reverse { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
    .project--reverse .project__info { order: 2; }
  }
  .project__info { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-4); }
  .project__title { font-size: var(--fs-h3); }
  .project__text { color: var(--text-muted); font-size: var(--fs-body-md); }
  .project__link {
    display: inline-flex; align-items: center; gap: 6px; min-block-size: var(--tap-min);
    font-size: var(--fs-body-sm); font-weight: var(--weight-medium); text-underline-offset: 4px;
  }
  .project__link .icon { transition: transform var(--dur-base) var(--ease-out); }
  .project__link:hover .icon { transform: translate(2px, -2px); }

  .shot {
    margin: 0; overflow: hidden; background: var(--surface-inset);
    border: 1px solid var(--border-default); border-radius: var(--radius-card); box-shadow: var(--shadow-card);
    transition: border-color var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-out);
  }
  .shot:hover { border-color: var(--border-strong); transform: translateY(var(--lift-hover)); }
  .shot__bar {
    display: flex; align-items: center; gap: 10px; block-size: 36px; padding-inline: 14px;
    background: var(--surface-card); border-block-end: 1px solid var(--border-subtle);
    font-family: var(--font-mono); font-size: var(--fs-micro); color: var(--text-faint);
  }
  .shot__dot { inline-size: 8px; block-size: 8px; border-radius: 50%; background: var(--border-strong); }
  .shot__dot:last-of-type { margin-inline-end: 4px; }
  .shot__img { display: block; inline-size: 100%; block-size: auto; aspect-ratio: 16 / 10; object-fit: cover; object-position: top left; }

  /* Screenshots follow the site theme: dark by default, light for data-theme="light" or a light system preference. */
  .shot__img--light { display: none; }
  :root[data-theme="light"] .shot__img--dark { display: none; }
  :root[data-theme="light"] .shot__img--light { display: block; }
  @media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) .shot__img--dark { display: none; }
    :root:not([data-theme="dark"]) .shot__img--light { display: block; }
  }

  /* ── 3D models: one row of cards. When they do not fit, the row scrolls (models.js turns it into a slow
     endless marquee with arrows; without JS it is a plain horizontal scroller). ── */
  .models__track {
    --model-w: 12.5rem;
    display: flex; gap: var(--space-3); list-style: none; margin: 0; padding: 4px 0; /* room for the hover lift */
    overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory;
  }
  .models__track > li { flex: 1 0 var(--model-w); scroll-snap-align: start; }
  .models__track:focus-visible { outline-offset: 4px; border-radius: var(--radius-lg); }
  .models.is-marquee .models__track {
    scroll-snap-type: none; scrollbar-width: none; /* JS drives the position; snapping would fight the arrows */
    mask-image: linear-gradient(90deg, transparent, #000 var(--space-8), #000 calc(100% - var(--space-8)), transparent);
  }
  .models.is-marquee .models__track::-webkit-scrollbar { display: none; }
  .models__controls { display: flex; justify-content: center; gap: var(--space-2); margin-block-start: var(--space-4); }
  .model {
    display: flex; flex-direction: column; overflow: hidden; block-size: 100%;
    background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
    transition: border-color var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-out);
  }
  .model:hover { border-color: var(--border-accent); transform: translateY(var(--lift-hover)); }
  .model__img { display: block; inline-size: 100%; block-size: auto; aspect-ratio: 3 / 2; object-fit: cover; background: var(--surface-inset); }
  /* Models with a light studio background have a dark-background variant; same theme logic as .shot__img. */
  .model__img--light { display: none; }
  :root[data-theme="light"] .model__img--dark { display: none; }
  :root[data-theme="light"] .model__img--light { display: block; }
  @media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) .model__img--dark { display: none; }
    :root:not([data-theme="dark"]) .model__img--light { display: block; }
  }
  .models__track > li:nth-child(2) { --reveal-delay: 60ms; }
  .models__track > li:nth-child(3) { --reveal-delay: 120ms; }
  .models__track > li:nth-child(4) { --reveal-delay: 180ms; }
  .models__track > li:nth-child(5) { --reveal-delay: 240ms; }

  /* ── Help: heading and fair note beside a list of examples ── */
  .help { display: grid; gap: var(--space-10); align-items: start; }
  @media (min-width: 60rem) {
    .help { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--space-16); }
  }
  .help .section-heading + * { margin-block-start: var(--space-8); }
  .fair {
    display: flex; gap: var(--space-3); padding: var(--space-4) var(--space-5);
    background: var(--accent-tint); border: 1px solid var(--border-accent); border-radius: var(--radius-md);
    font-size: var(--fs-body-sm); color: var(--text-body);
  }
  .fair .icon { color: var(--text-accent); margin-block-start: 3px; }
  .ideas { list-style: none; margin: 0; padding: 0; }
  .idea {
    display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--space-1) var(--space-4);
    padding-block: var(--space-5); border-block-start: 1px solid var(--border-default);
  }
  .idea:last-child { border-block-end: 1px solid var(--border-default); }
  .idea .card__icon { grid-row: span 2; }
  .idea__title { align-self: center; font-size: var(--fs-body-lg); line-height: 1.35; }
  .idea__text { font-size: var(--fs-body-sm); color: var(--text-muted); }

  /* ── Technologies ── */
  .technologies { display: grid; gap: var(--space-8); align-items: start; }
  .technologies > .section-heading + * { margin-block-start: 0; }
  @media (min-width: 60rem) {
    .technologies { grid-template-columns: minmax(0, .85fr) minmax(0, 1fr); gap: var(--space-16); }
    .technologies .tech-grid { padding-block-start: var(--space-2); }
  }

  .tech-grid { display: flex; flex-wrap: wrap; gap: var(--space-3); list-style: none; margin: 0; padding: 0; }
  .tech {
    display: inline-flex; align-items: center; justify-content: center;
    inline-size: 60px; block-size: 60px; color: var(--text-muted);
    background: var(--surface-card); border: 1px solid var(--border-default); border-radius: var(--radius-control);
    transition: color var(--dur-fast) var(--ease-standard), background var(--dur-fast) var(--ease-standard),
      border-color var(--dur-fast) var(--ease-standard), transform var(--dur-base) var(--ease-out);
  }
  .tech:hover { color: var(--text-accent); background: var(--accent-tint); border-color: var(--border-accent); transform: translateY(var(--lift-hover)); }
  .brand-icon { fill: currentColor; }

  /* ── Closing call to action ── */
  .cta { padding-block: var(--space-section-tight); }
  .cta__inner { text-align: center; }
  .cta__title { font-size: var(--fs-h1); }
  .cta__text { margin: var(--space-4) auto 0; max-inline-size: var(--measure-lead); font-size: var(--fs-lead); color: var(--text-muted); }
  .cta .btn { margin-block-start: var(--space-8); }

  /* ── Contact page ── */
  .contact { padding-block: var(--space-section-tight); }
  .contact__inner { display: grid; gap: var(--space-10); align-items: start; }
  @media (min-width: 60rem) {
    .contact__inner { grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: var(--space-12); }
  }
  .assurances { display: flex; flex-direction: column; gap: var(--space-4); margin-block-start: var(--space-8); list-style: none; padding: 0; }
  .assurances li { display: flex; gap: var(--space-3); font-size: var(--fs-body-sm); color: var(--text-muted); }
  .assurances .icon { color: var(--text-accent); margin-block-start: 2px; }
  .contact__card { padding: var(--space-5); scroll-margin-block-start: calc(var(--header-h) + var(--space-4)); }
  @media (min-width: 40rem) { .contact__card { padding: var(--space-8); } }
  .contact__card:focus { outline: none; }
  .contact__again { margin-block-start: var(--space-5); }

  /* ── About ── */
  .about { padding-block: var(--space-section-tight); }
  .about__prose { display: flex; flex-direction: column; gap: var(--space-5); margin-block-start: var(--space-8); font-size: var(--fs-body-lg); color: var(--text-body); max-inline-size: var(--measure-prose); }
  .about__facts { margin-block-start: var(--space-12); grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); }
  .about__facts .card__title { font-size: var(--fs-h4); }
  .about__topics { margin-block-start: var(--space-10); }
  .about__topics .eyebrow { margin-block-end: var(--space-3); color: var(--text-faint); }
  .about__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-block-start: var(--space-10); }

  /* ── 404 ── */
  .notfound { padding-block: var(--space-section); }
}