/* ================================================================
   DESIGN SYSTEM — Antônio Augusto Dórea · Portfolio
   ================================================================ */

:root {
  /* ── Colors ─────────────────────────────────────────────────── */
  --c-primary:     #000000;
  --c-canvas:      #ffffff;
  --c-accent:      #ffaacc;
  --c-label:       #a09e9e;
  --c-body:        #615c5c;
  --c-placeholder: #d9d9d9;
  --c-grid-card:   #cecece;

  /* ── Typography ─────────────────────────────────────────────── */
  --font:          'Helvetica Neue', Helvetica, Arial, sans-serif;

  /* Nav */
  --nav-fs:        15px;
  --nav-fw:        700;
  --nav-ls:        0.12em;

  /* Project hero title */
  --title-fs:      80px;
  --title-fw:      400;
  --title-ls:      -0.02em;
  --title-lh:      0.95;

  /* Project Details heading */
  --detail-heading-fs: 14px;
  --detail-heading-fw: 700;

  /* Labels (Category/Services/Year) */
  --label-fs:      12px;
  --label-color:   #a09e9e;
  --label-ls:      0.04em;

  /* Label values */
  --value-fs:      12px;
  --value-fw:      700;
  --value-color:   #615c5c;

  /* Body / descrição */
  --desc-fs:       12px;
  --desc-color:    #a09e9e;
  --desc-lh:       1.65;

  /* Sidebar */
  --cat-fs:        14px;
  --cat-fw:        700;

  /* ── Layout ─────────────────────────────────────────────────── */
  --nav-h:         72px;
  --sidebar-w:     34vw;
  --pad:           clamp(32px, 4vw, 64px);

  /* ── Motion ─────────────────────────────────────────────────── */
  --ease:          cubic-bezier(0.76, 0, 0.24, 1);
  --dur:           0.65s;
  --dur-fast:      0.25s;
}

/* ================================================================
   RESET
   ================================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: var(--font);
  background: var(--c-canvas);
  color: var(--c-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a    { color: inherit; text-decoration: none; }
img  { display: block; max-width: 100%; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }

/* ================================================================
   NAV
   ================================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  padding: 0 var(--pad);
  z-index: 400;
  background: var(--c-canvas);
  transition: background 0.35s ease;
}

/* When sidebar opens: left portion matches sidebar pink */
body.sidebar-open .nav {
  background: linear-gradient(
    to right,
    var(--c-accent) var(--sidebar-w),
    var(--c-canvas) var(--sidebar-w)
  );
}

.nav-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.nav-right { margin-left: auto; }

/* Base nav link */
.nav-link,
.nav-btn {
  font-size: var(--nav-fs);
  font-weight: var(--nav-fw);
  letter-spacing: var(--nav-ls);
  text-transform: uppercase;
  color: var(--c-primary);
  transition: color 0.2s ease, opacity 0.35s ease;
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font);
  padding: 0;
}
.nav-link:hover,
.nav-btn:hover   { color: var(--c-accent); }
.nav-link.is-active { color: var(--c-accent); }

/* WORK button — becomes white when sidebar is open */
#navWork {
  color: var(--c-primary);
  transition: color 0.35s ease;
  position: relative;
  z-index: 401;
}
body.sidebar-open #navWork { color: white; }

/* ================================================================
   SIDEBAR (global — all pages)
   ================================================================ */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--c-accent);
  z-index: 300;
  display: flex;
  flex-direction: column;
  transform: translateY(-100%);
  transition: transform var(--dur) var(--ease);
  overflow: hidden;
}
.sidebar.is-open { transform: translateY(0); }

/* Reserve space for the nav bar inside sidebar */
.sidebar-header {
  height: var(--nav-h);
  flex-shrink: 0;
}

/* Categories */
.sidebar-cats {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.sidebar-cat {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--cat-fs);
  font-weight: var(--cat-fw);
  /* NO text-transform uppercase for categories */
  color: var(--c-primary);
  background: var(--c-accent);
  border-top: 1px solid rgba(209, 136, 158, 0.35);
  cursor: pointer;
  transition: background 0.22s ease, color 0.22s ease;
}
.sidebar-cat:hover,
.sidebar-cat.is-active {
  background: var(--c-primary);
  color: white;
}

/* ALL button */
.sidebar-footer {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-top: 1px solid rgba(209, 136, 158, 0.35);
}
.sidebar-all {
  font-size: var(--cat-fs);
  font-weight: var(--cat-fw);
  letter-spacing: var(--nav-ls);
  text-transform: uppercase;
  color: white;
  opacity: 0.85;
  transition: opacity 0.2s;
}
.sidebar-all:hover { opacity: 1; }
.sidebar-all.is-active { opacity: 1; text-decoration: underline; }

/* ================================================================
   PAGE BASE
   ================================================================ */
.page-main {
  padding-top: var(--nav-h);
}

/* ================================================================
   HOMEPAGE
   ================================================================ */
.home-hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: calc(100vh - var(--nav-h));
  padding: 0 var(--pad);
  position: relative;
}

.home-name-wrap {
  position: relative;
  display: inline-block;
}

.home-name,
.home-name-alt {
  font-size: clamp(56px, 8vw, 112px);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.93;
  display: block;
}

.home-name-alt {
  position: absolute;
  top: 0; left: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
  white-space: nowrap;
}
.home-name { transition: opacity 0.8s ease; }
.home-name.is-hidden { opacity: 0; }
.home-name-alt.is-visible { opacity: 1; }

.home-role {
  margin-top: 36px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-label);
}

.home-footer {
  position: absolute;
  bottom: var(--pad);
  right: var(--pad);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-label);
}

/* ================================================================
   WORK PAGE — INFINITE SCROLL
   ================================================================ */
.projects-container {
  width: 100%;
}

.project-item {
  width: 100%;
}

.project-placeholder {
  width: 100%;
  height: 400px;
  background: var(--c-placeholder);
}

.project-scroll-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: 48px var(--pad) 80px;
  gap: 64px;
  align-items: start;
}

.project-title {
  font-size: var(--title-fs);
  font-weight: var(--title-fw);
  letter-spacing: var(--title-ls);
  line-height: var(--title-lh);
  color: var(--c-primary);
}

.project-details-heading {
  font-size: var(--detail-heading-fs);
  font-weight: var(--detail-heading-fw);
  margin-bottom: 20px;
}

.detail-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  border-top: 1px solid #e0e0e0;
  padding: 12px 0;
}
.detail-row:last-of-type { border-bottom: 1px solid #e0e0e0; }

.detail-label {
  font-size: var(--label-fs);
  color: var(--label-color);
  letter-spacing: var(--label-ls);
  font-weight: 400;
}
.detail-value {
  font-size: var(--value-fs);
  font-weight: var(--value-fw);
  color: var(--value-color);
  line-height: 1.55;
}

.project-desc {
  font-size: var(--desc-fs);
  color: var(--desc-color);
  line-height: var(--desc-lh);
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid #e0e0e0;
  grid-column: 1 / -1;
}

/* ================================================================
   ABOUT PAGE
   ================================================================ */
.about-page {
  padding: 64px var(--pad) 0;
  min-height: calc(100vh - var(--nav-h));
  position: relative;
}

.about-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--pad);
  align-items: start;
}

.about-left {
  max-width: 680px;
}

.about-title {
  font-size: clamp(22px, 2.2vw, 32px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin-bottom: 40px;
  color: var(--c-primary);
}

.about-details {
  margin-bottom: 32px;
}

.about-desc-text {
  font-size: var(--desc-fs);
  color: var(--desc-color);
  line-height: var(--desc-lh);
  max-width: 640px;
  margin-top: 24px;
}

/* Photo (right column, passport-style) — 35% smaller */
.about-photo-wrap {
  width: clamp(104px, 9.1vw, 143px);
  flex-shrink: 0;
}

.about-photo-img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top;
  box-shadow: -1px 5px 10px 4px rgba(0,0,0,0.16);
  display: block;
}

.about-photo-placeholder {
  width: 100%;
  aspect-ratio: 3 / 4;
  background: var(--c-placeholder);
  box-shadow: -1px 5px 10px 4px rgba(0,0,0,0.16);
}

/* Appearances section */
.about-appearances {
  padding: 64px 0 80px;
}

.about-appearances-heading {
  font-size: clamp(22px, 2.2vw, 32px);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 32px;
  padding: 0 var(--pad);
}

/* Infinite horizontal ticker */
.appearances-ticker {
  overflow: hidden;
  width: 100%;
}

.appearances-track {
  display: flex;
  gap: 16px;
  width: max-content;
  will-change: transform;
}

.appearances-thumb {
  width: clamp(160px, 18vw, 260px);
  aspect-ratio: 1 / 1;
  background: var(--c-placeholder);
  flex-shrink: 0;
}

/* ================================================================
   CONTACT PAGE
   ================================================================ */
.contact-page-layout {
  display: grid;
  grid-template-columns: 1fr 0.45fr;
  min-height: calc(100vh - var(--nav-h));
}

.contact-page-left {
  padding: 64px var(--pad) 80px;
  display: flex;
  flex-direction: column;
}

.contact-page-right {
  background: var(--c-placeholder);
  align-self: stretch;
}

.contact-page-title {
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.05;
  margin-bottom: 48px;
}

/* Underline form fields */
.contact-new-form {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 40px;
  max-width: 640px;
}

.contact-field {
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid #d0d0d0;
  padding: 14px 0;
}

.contact-field-label {
  font-size: var(--label-fs);
  color: var(--label-color);
  letter-spacing: var(--label-ls);
  font-weight: 400;
  margin-bottom: 4px;
}

.contact-field-input,
.contact-field-textarea {
  background: none;
  border: none;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 400;
  color: var(--c-primary);
  outline: none;
  width: 100%;
}

.contact-field-textarea {
  resize: none;
  height: 60px;
  line-height: 1.65;
}

/* Pill buttons */
.btn-send {
  align-self: flex-start;
  margin-top: 28px;
  padding: 12px 32px;
  border: 2px solid var(--c-primary);
  border-radius: 999px;
  font-size: var(--nav-fs);
  font-weight: var(--nav-fw);
  letter-spacing: var(--nav-ls);
  color: var(--c-primary);
  background: none;
  cursor: pointer;
  transition: background 0.22s, color 0.22s;
  font-family: var(--font);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
}
.btn-send:hover {
  background: var(--c-primary);
  color: white;
}

.contact-social-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
  align-items: flex-start;
}

.btn-pill-link {
  padding: 12px 28px;
  border: 1.5px solid var(--c-body);
  border-radius: 999px;
  font-size: var(--nav-fs);
  font-weight: var(--nav-fw);
  letter-spacing: var(--nav-ls);
  color: var(--c-body);
  background: none;
  cursor: pointer;
  transition: background 0.22s, color 0.22s, border-color 0.22s;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
}
.btn-pill-link:hover {
  background: var(--c-body);
  color: white;
}

.contact-footer-name {
  margin-top: auto;
  padding-top: 64px;
  font-size: clamp(18px, 2vw, 28px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-primary);
}