/* ─────────────────────────────────────────────────────────
   Estúdio do olhar — portfólio fotográfico
   Tipografia: Fraunces (serif) + JetBrains Mono
   Paleta: pergaminho / carvão quente / cobre
   ──────────────────────────────────────────────────────── */

:root {
  --bg: #f4efe6;
  --bg-shadow: #ebe4d6;
  --ink: #1a1815;
  --ink-soft: #4a443c;
  --mute: #8b7e6e;
  --accent: #b5654a;
  --accent-deep: #8c4a35;
  --dark: #0e0d0b;
  --dark-soft: #1c1a16;

  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --mono: "JetBrains Mono", "SF Mono", ui-monospace, monospace;

  --max: 1440px;
  --pad-x: clamp(20px, 4vw, 56px);
  --pad-y: clamp(64px, 10vw, 140px);

  --t-fast: 220ms cubic-bezier(.2,.6,.2,1);
  --t-med:  640ms cubic-bezier(.2,.6,.2,1);
  --t-slow: 1100ms cubic-bezier(.2,.6,.2,1);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(16px, 1.05vw + .55rem, 19px);
  line-height: 1.55;
  font-feature-settings: "ss01", "kern";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--accent); }

em { font-style: italic; font-weight: 400; }

.mono {
  font-family: var(--mono);
  font-weight: 300;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: .72em;
}

/* ────────── NAV ────────── */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px var(--pad-x);
  mix-blend-mode: difference;
  color: #fff;
  pointer-events: none;
  text-shadow: 0 0 12px rgba(0,0,0,.2);
}
.nav a { pointer-events: auto; color: #fff; }
.nav a:hover { color: var(--accent); }

.nav__brand {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: .01em;
}
.nav__brand em { font-weight: 300; }

.nav__links {
  display: flex;
  gap: clamp(14px, 2.4vw, 36px);
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--mono);
  font-size: .76rem;
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: .12em;
}
@media (max-width: 720px) {
  .nav__links { display: none; }
}

/* ────────── HERO ────────── */

.hero {
  position: relative;
  min-height: 100vh;
  width: 100%;
  overflow: hidden;
  background: var(--dark);
}
.hero__media,
.hero__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}
.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(0,0,0,.30) 0%, rgba(0,0,0,.05) 25%, rgba(0,0,0,.00) 50%, rgba(0,0,0,.55) 100%);
  pointer-events: none;
}
.hero__content {
  position: relative;
  z-index: 2;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--pad-x);
  padding-bottom: clamp(60px, 9vh, 110px);
  max-width: 880px;
  color: #fff;
}
.hero__kicker {
  font-family: var(--mono);
  font-size: .76rem;
  font-weight: 300;
  letter-spacing: .22em;
  text-transform: uppercase;
  margin: 0 0 clamp(18px, 3vh, 36px);
  opacity: .85;
}
.hero__title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2.4rem, 6.5vw, 5.6rem);
  line-height: 1.02;
  letter-spacing: -.018em;
  margin: 0;
}
.hero__title em { font-style: italic; font-weight: 300; color: var(--accent); }

.hero__lede {
  margin: clamp(20px, 3vh, 32px) 0 0;
  max-width: 560px;
  font-size: clamp(1.05rem, 1.4vw, 1.22rem);
  line-height: 1.5;
  font-weight: 300;
  opacity: .92;
}
.hero__cue {
  position: absolute;
  bottom: 24px;
  right: var(--pad-x);
  font-family: var(--mono);
  font-size: 1.6rem;
  font-weight: 300;
  opacity: .7;
  animation: bob 2.6s ease-in-out infinite;
}
@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(6px); }
}

/* ────────── ABOUT ────────── */

.about {
  padding: var(--pad-y) var(--pad-x);
  background: var(--bg);
  border-bottom: 1px solid rgba(26,24,21,.06);
}
.about__grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 56px);
}
@media (min-width: 900px) {
  .about__grid {
    grid-template-columns: 1fr 1.4fr 1fr;
    align-items: start;
  }
  .about__title { grid-column: 1 / 3; }
  .about__body  { grid-column: 2 / 3; }
  .about__signature { grid-column: 3; align-self: end; text-align: right; }
}
.about__kicker {
  margin: 0;
  font-family: var(--mono);
  font-size: .76rem;
  font-weight: 300;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent);
}
.about__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2rem, 4.2vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -.012em;
  color: var(--ink);
}
.about__title em { color: var(--accent); }
.about__body p {
  margin: 0 0 1.1em;
  font-size: clamp(1rem, 1.05vw + .55rem, 1.16rem);
  line-height: 1.65;
  color: var(--ink-soft);
}
.about__placeholder { color: var(--mute); }
.about__signature {
  margin: 0;
  color: var(--mute);
}

/* ────────── COLLECTIONS ────────── */

.collection {
  padding: var(--pad-y) var(--pad-x);
  background: var(--bg);
  border-bottom: 1px solid rgba(26,24,21,.06);
}
.collection:nth-of-type(odd of .collection) {
  background: var(--bg-shadow);
}
.collection__header {
  max-width: var(--max);
  margin: 0 auto clamp(40px, 6vw, 80px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}
@media (min-width: 700px) {
  .collection__header {
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "idx subtitle"
      "title title";
    column-gap: 28px;
    row-gap: 14px;
    align-items: end;
  }
  .collection__index { grid-area: idx; }
  .collection__subtitle { grid-area: subtitle; justify-self: end; text-align: right; max-width: 32ch; }
  .collection__title { grid-area: title; }
}
.collection__index {
  margin: 0;
  font-family: var(--mono);
  font-size: .76rem;
  font-weight: 300;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent);
}
.collection__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2.4rem, 7vw, 5.6rem);
  line-height: 1;
  letter-spacing: -.018em;
}
.collection__title em { font-style: italic; }
.collection__subtitle {
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(.95rem, 1vw + .35rem, 1.08rem);
  font-style: italic;
  font-weight: 300;
}

/* ── Asymmetric editorial grids ─────────────────────────── */

.collection__grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(20px, 2.6vw, 40px);
  grid-auto-flow: dense;
}

/* base figure */
.ph {
  margin: 0;
  position: relative;
  overflow: hidden;
}
.ph picture { display: block; overflow: hidden; }
.ph img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.78);
  transition: filter var(--t-slow), transform 1400ms cubic-bezier(.2,.6,.2,1);
  will-change: transform, filter;
}
.ph:hover img {
  filter: saturate(1.0);
  transform: scale(1.012);
}
.ph figcaption {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  color: var(--ink-soft);
  font-size: .98rem;
}
.cap__title { letter-spacing: -.005em; }
.cap__meta { color: var(--mute); font-style: normal; }

/* default grid spans (mobile) */
.ph { grid-column: 1 / -1; }

/* tablet+ : let each collection define rhythm */
@media (min-width: 720px) {

  /* ── GEOMETRIA layout ───────────────────────── */
  .grid-geometria .ph[data-pos="1"] { grid-column: 1 / 8;  }
  .grid-geometria .ph[data-pos="2"] { grid-column: 9 / 13; align-self: end; }
  .grid-geometria .ph[data-pos="3"] { grid-column: 1 / 6;  }
  .grid-geometria .ph[data-pos="4"] { grid-column: 7 / 13; }
  .grid-geometria .ph[data-pos="5"] { grid-column: 2 / 11; }
  .grid-geometria .ph[data-pos="6"] { grid-column: 1 / 5;  }
  .grid-geometria .ph[data-pos="7"] { grid-column: 5 / 10; }
  .grid-geometria .ph[data-pos="8"] { grid-column: 10 / 13; }
  .grid-geometria .ph[data-pos="9"] { grid-column: 3 / 12; }

  /* ── HORIZONTES layout ──────────────────────── */
  .grid-horizontes .ph[data-pos="1"] { grid-column: 1 / 13; }
  .grid-horizontes .ph[data-pos="2"] { grid-column: 1 / 7;  }
  .grid-horizontes .ph[data-pos="3"] { grid-column: 8 / 13; align-self: center; }
  .grid-horizontes .ph[data-pos="4"] { grid-column: 4 / 12; }
  .grid-horizontes .ph[data-pos="5"] { grid-column: 1 / 4;  align-self: center; }
  .grid-horizontes .ph[data-pos="6"] { grid-column: 4 / 10; }
  .grid-horizontes .ph[data-pos="7"] { grid-column: 2 / 12; }
  .grid-horizontes .ph[data-pos="8"] { grid-column: 1 / 8;  }
  .grid-horizontes .ph[data-pos="9"] { grid-column: 9 / 13; }

  /* ── NOTURNO layout ─────────────────────────── */
  .grid-noturno .ph[data-pos="1"] { grid-column: 1 / 9;  }
  .grid-noturno .ph[data-pos="2"] { grid-column: 9 / 13; align-self: end; }
  .grid-noturno .ph[data-pos="3"] { grid-column: 1 / 5;  }
  .grid-noturno .ph[data-pos="4"] { grid-column: 5 / 13; align-self: center; }
  .grid-noturno .ph[data-pos="5"] { grid-column: 2 / 8;  }
  .grid-noturno .ph[data-pos="6"] { grid-column: 9 / 12; }
  .grid-noturno .ph[data-pos="7"] { grid-column: 1 / 9;  }
  .grid-noturno .ph[data-pos="8"] { grid-column: 9 / 13; align-self: end; }
}

/* portrait images keep proportions natural; landscape get a soft cap */
.ph--portrait img { aspect-ratio: 2 / 3; }
.ph--feature img,
.ph--wide img    { aspect-ratio: 3 / 2; }
.ph--medium img  { aspect-ratio: 3 / 2; }
.ph--small img   { aspect-ratio: 4 / 3; }

/* ────────── GALLERY (open archive, dark) ────────── */

.gallery {
  background: var(--dark);
  color: #ddd;
  padding: var(--pad-y) var(--pad-x);
}
.gallery__header {
  max-width: var(--max);
  margin: 0 auto clamp(36px, 5vw, 64px);
}
.gallery__kicker {
  margin: 0 0 12px;
  color: var(--accent);
  letter-spacing: .22em;
}
.gallery__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 300;
  font-style: italic;
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  letter-spacing: -.012em;
  color: #f0e9dc;
}

.gallery__masonry {
  max-width: var(--max);
  margin: 0 auto;
  column-count: 1;
  column-gap: clamp(14px, 1.8vw, 24px);
}
@media (min-width: 600px)  { .gallery__masonry { column-count: 2; } }
@media (min-width: 980px)  { .gallery__masonry { column-count: 3; } }
@media (min-width: 1400px) { .gallery__masonry { column-count: 4; } }

.gallery__masonry .m {
  margin: 0 0 clamp(14px, 1.8vw, 24px);
  break-inside: avoid;
  overflow: hidden;
  background: var(--dark-soft);
  position: relative;
}
.gallery__masonry img {
  width: 100%;
  filter: saturate(.7) brightness(.95);
  transition: filter var(--t-slow), transform 1400ms cubic-bezier(.2,.6,.2,1);
}
.gallery__masonry .m:hover img {
  filter: saturate(1) brightness(1);
  transform: scale(1.02);
}

/* ────────── CONTACT ────────── */

.contact {
  padding: var(--pad-y) var(--pad-x);
  background: var(--bg);
}
.contact__grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 36px);
}
@media (min-width: 900px) {
  .contact__grid {
    grid-template-columns: 1fr 1.4fr;
    grid-template-areas:
      "kicker title"
      "kicker list"
      "colophon colophon";
    gap: clamp(24px, 3vw, 48px);
  }
  .contact__kicker  { grid-area: kicker; }
  .contact__title   { grid-area: title; }
  .contact__list    { grid-area: list; }
  .contact__colophon{ grid-area: colophon; }
}
.contact__kicker {
  margin: 0;
  font-family: var(--mono);
  font-size: .76rem;
  font-weight: 300;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent);
}
.contact__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.8rem, 3.6vw, 3rem);
  line-height: 1.1;
  letter-spacing: -.012em;
}
.contact__title em { font-style: italic; }
.contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: clamp(1rem, 1vw + .55rem, 1.18rem);
  display: grid;
  gap: 10px;
  color: var(--ink-soft);
}
.contact__list a {
  border-bottom: 1px solid rgba(26,24,21,.18);
  padding-bottom: 1px;
}
.contact__list a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.contact__colophon {
  margin: clamp(24px, 4vw, 48px) 0 0;
  color: var(--mute);
  letter-spacing: .14em;
}

/* ────────── REVEAL on scroll ────────── */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--t-med), transform var(--t-med);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.ph {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 900ms cubic-bezier(.2,.6,.2,1),
              transform 900ms cubic-bezier(.2,.6,.2,1);
  transition-delay: var(--reveal-delay, 0ms);
}
.ph.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.gallery__masonry .m {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 800ms cubic-bezier(.2,.6,.2,1),
              transform 800ms cubic-bezier(.2,.6,.2,1);
  transition-delay: var(--reveal-delay, 0ms);
}
.gallery__masonry .m.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .reveal, .ph, .gallery__masonry .m { opacity: 1; transform: none; }
}

/* ────────── selection ────────── */
::selection { background: var(--accent); color: #fff; }