/* Ali Babaei Portfolio — design tokens (see ../DESIGN_SYSTEM.md) */
:root {
  --paper: #ffffff;
  --ink: #0a0a0a;
  --muted: #4a4a4a;
  --paper-90: rgba(255, 255, 255, .9);
  --paper-97: rgba(255, 255, 255, .97);

  --font-display: 'Barriecito', cursive;
  --font-label: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Mobile type scale: multiplier applied to a desktop base size to get
     that element's minimum size on mobile (<=700px). Keeps the ratio
     explicit and in one place instead of picking mobile sizes by eye. */
  --mobile-heading-scale: 1.4;

  /* Page shell: top/side padding shared by every top-level page section
     (Home, Gallery, About, Contact). Bottom padding stays per-page. */
  --page-pad-y: clamp(110px, 18vw, 150px);
  --page-pad-x: clamp(20px, 5vw, 48px);

  /* Signature motion curve — a soft, decelerating ease used for page-enter
     and image-hover transitions. */
  --ease-signature: cubic-bezier(.16, 1, .3, 1);

  /* Radius scale */
  --radius-pill: 999px;

  /* Z-index scale, low to high */
  --z-header: 500;
  --z-lightbox: 900;
  --z-cursor: 9999;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  color: var(--ink);
}
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--ink); }
::selection { background: var(--ink); color: var(--paper); }

@keyframes pageIn {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes lbIn {
  from { opacity: 0; transform: scale(.94); }
  to { opacity: 1; transform: scale(1); }
}

.root {
  position: relative;
  background: var(--paper);
  min-height: 100vh;
  cursor: none;
}

/* Custom cursor */
.cursor-dot {
  position: fixed; top: 0; left: 0;
  width: 6px; height: 6px;
  margin-left: -3px; margin-top: -3px;
  background: var(--ink);
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  will-change: transform;
}
.cursor-ring {
  position: fixed; top: 0; left: 0;
  width: 28px; height: 28px;
  margin-left: -14px; margin-top: -14px;
  border: 1.5px solid var(--ink);
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  transition: width .2s ease, height .2s ease, margin .2s ease, border-color .2s ease;
  will-change: transform;
}
.cursor-ring.grow {
  width: 64px; height: 64px;
  margin: -32px 0 0 -32px;
}
@media (hover: none) {
  .cursor-dot, .cursor-ring { display: none; }
  .root { cursor: auto; }
}

/* Header */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: var(--z-header);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  padding: clamp(16px, 3vw, 26px) clamp(20px, 5vw, 48px);
  background: var(--paper-90);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--ink);
}
.logo {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: clamp(15px, 2.2vw, 19px);
  letter-spacing: .02em;
  text-transform: uppercase;
  cursor: none;
}
.nav { display: flex; gap: clamp(18px, 4vw, 36px); }
.nav-item {
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .03em;
  text-transform: uppercase;
  cursor: none;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}
.nav-item.active { color: var(--ink); border-bottom-color: var(--ink); }

/* Shared page section */
.page {
  animation: pageIn .8s var(--ease-signature) both;
}

/* Label text: small bold uppercase UI chrome — buttons, nav-style links,
   gallery meta, lightbox close. Reused as-is; page-specific rules below
   only add position/spacing/extra decoration on top of this. */
.icon-link span,
.pill-button span,
.poster-head,
.lightbox-close {
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* Display heading: the site's large uppercase headline style (Barriecito).
   Used at three sizes — hero name, page titles, and H2/statement text —
   forming the display type scale documented in DESIGN_SYSTEM.md. */
.home .home-name,
.home-h2,
.home-statement div,
.page h1 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -.01em;
}

/* Muted copy: secondary paragraphs (taglines, closing lines, notes). */
.home-tagline,
.home-closing,
.contact-note {
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
}

/* Home */
.home {
  padding: var(--page-pad-y) var(--page-pad-x) 100px;
  display: flex; flex-wrap: wrap; gap: 36px;
}
.home-sidebar {
  position: sticky;
  top: clamp(90px, 16vw, 150px);
  flex: 1 1 320px; min-width: 280px; max-width: 500px;
  height: max-content;
  display: flex; flex-direction: column; gap: 36px;
}
.home .home-name {
  line-height: .86;
  font-size: clamp(56px, 11vw, 160px);
  margin: 0;
}
.home-tagline {
  max-width: 320px;
}
.home-links { display: flex; flex-direction: column; gap: 14px; }
.icon-link {
  display: flex; align-items: center; gap: 10px;
  cursor: none; width: max-content;
}
.icon-link svg { display: block; flex: none; }
.icon-link span {
  border-bottom: 2px solid var(--ink);
  padding-bottom: 2px;
}
.pill-button {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  background: var(--ink); color: var(--paper);
  border-radius: var(--radius-pill);
  padding: 18px 32px;
  cursor: none;
  transition: transform .25s ease;
  width: max-content;
}
.pill-button:hover { transform: translateY(-2px); }
@media (max-width: 700px) {
  .home-sidebar {
    position: static;
  }
  .home .home-name {
    /* min = desktop base (56px) x --mobile-heading-scale */
    font-size: clamp(calc(56px * var(--mobile-heading-scale)), 19vw, 130px);
  }
  .home-tagline {
    margin-top: -28px;
  }
}

.home-content {
  flex: 2 1 480px; min-width: 280px;
  display: flex; flex-direction: column; gap: 28px;
}
.image-tile { overflow: hidden; cursor: none; }
.image-tile img {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
  transition: transform .6s ease;
}
.image-tile:hover img { transform: scale(1.05); }
.image-tile.tile-hero-a { height: clamp(320px, 56vw, 720px); }
.image-tile.tile-hero-a:hover img { transform: scale(1.03); }
.image-tile.tile-hero-b { height: clamp(240px, 36vw, 460px); }
.image-tile.tile-feat { height: clamp(220px, 30vw, 400px); }
.image-tile.tile-feat-d { height: clamp(280px, 44vw, 560px); }
.image-tile.tile-feat-d:hover img { transform: scale(1.03); }

.home-row { display: flex; flex-wrap: wrap; gap: 28px; align-items: start; }
.home-row-b { flex: 1.3 1 260px; }
.home-row-text { flex: .7 1 220px; padding-top: 20px; }
.home-h2 {
  font-size: clamp(30px, 5vw, 56px);
  line-height: .95;
  margin: 0 0 16px;
}
.home-row-text p {
  font-size: 16px; line-height: 1.65; color: var(--muted); margin: 0;
}
.home-grid3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 28px;
}
.home-statement {
  display: flex; flex-wrap: wrap; gap: 24px; align-items: center; padding: 10px 0;
}
.home-statement div {
  flex: 1 1 240px;
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1;
  margin: 0;
}
.home-closing {
  max-width: 520px;
}

/* Gallery */
.gallery {
  padding: var(--page-pad-y) var(--page-pad-x) 90px;
}
.gallery h1 { margin: 0 0 48px; }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px;
  background: var(--ink);
  border: 1px solid var(--ink);
}
.poster {
  padding: 22px;
  height: clamp(280px, 40vw, 420px);
  display: flex; flex-direction: column;
  cursor: none;
  background: var(--paper); color: var(--ink);
}
.poster.dark { background: var(--ink); color: var(--paper); }
.poster-head {
  display: flex; justify-content: space-between;
}
.poster-image {
  flex: 1;
  display: flex; align-items: flex-end;
  overflow: hidden;
  margin-top: 20px;
}
.poster-image img {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
  transition: transform .6s var(--ease-signature);
}
.poster:hover .poster-image img { transform: scale(1.06); }

/* Page titles */
.page h1 {
  font-size: clamp(40px, 7vw, 96px);
  margin: 0 0 48px;
}

/* About */
.about {
  padding: var(--page-pad-y) var(--page-pad-x) 120px;
  max-width: 900px;
}
.about h1 { margin: 0 0 40px; }
.about p { font-size: 20px; line-height: 1.6; margin: 0 0 28px; }
.about p:last-child { color: var(--muted); margin-bottom: 0; }

/* Contact */
.contact {
  padding: var(--page-pad-y) var(--page-pad-x) 120px;
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
}
.contact h1 {
  font-size: clamp(48px, 10vw, 140px);
  margin: 0 0 24px;
  line-height: .9;
}
.contact-note {
  max-width: 480px;
  margin-bottom: 32px;
}
.contact a {
  font-family: var(--font-label);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 40px);
  text-decoration: underline;
  text-underline-offset: 8px;
  width: max-content;
  display: block;
  cursor: none;
}

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: var(--z-lightbox);
  background: var(--paper-97);
  display: flex; align-items: center; justify-content: center;
  animation: lbIn .35s ease both;
  transition: opacity .2s var(--ease-signature);
}
.lightbox[hidden] { display: none; }
.lightbox-inner {
  position: relative; max-width: 88vw; max-height: 88vh;
  transition: transform .2s var(--ease-signature);
  touch-action: none;
}
.lightbox-inner.dragging { transition: none; }
.lightbox-inner img {
  max-width: 88vw; max-height: 88vh;
  object-fit: contain; display: block;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .15);
}
.lightbox-label {
  position: absolute; bottom: -42px; left: 0;
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 14px;
}
.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: fixed;
  font-family: var(--font-label);
  font-weight: 700;
  cursor: none;
}
.lightbox-close {
  top: clamp(16px, 3vw, 30px);
  right: clamp(20px, 5vw, 48px);
}
.lightbox-prev,
.lightbox-next {
  top: 50%;
  transform: translateY(-50%);
  font-size: 28px;
}
.lightbox-prev { left: clamp(12px, 4vw, 36px); }
.lightbox-next { right: clamp(12px, 4vw, 36px); }