/* =============================================
   João Amorim — Portfólio · style.css
   Estética: Editorial masculino sóbrio
   Paleta: off-white frio → preto ardósia, acento azul-cobalto frio
   Tipografia: Cormorant Garamond + DM Mono
   ─────────────────────────────────────────
   1.  Tokens
   2.  Reset & Base
   3.  Cursor
   4.  Linha decorativa
   5.  Labels & Utilitários
   6.  Placeholders de imagem
   7.  Botão
   8.  Header & Nav
   9.  Hero
   10. Projetos
   11. Stack
   12. Sobre
   13. Contato
   14. Footer
   15. Animações de reveal
   16. Responsividade
============================================= */

/* ── 1. TOKENS ──────────────────────────────── */
:root {
  --bg:       #F4F3F0;       /* off-white ligeiramente frio */
  --bg-2:     #e8e8e8;       /* superfície alternada */
  --ink:      #18181B;       /* quase-preto */
  --ink-2:    #62616B;       /* texto secundário */
  --border:   #D2D0CC;       /* bordas sutis */
  --accent:   #2563EB;       /* azul cobalto — assinatura masculina */
  --accent-l: rgba(37,99,235,0.08);

  --f-serif: 'Cormorant Garamond', Georgia, serif;
  --f-mono:  'DM Mono', 'Courier New', monospace;

  --sp-xs:  0.5rem;
  --sp-sm:  1rem;
  --sp-md:  2rem;
  --sp-lg:  4rem;
  --sp-xl:  8rem;

  --w:   1100px;
  --pad: 2rem;

  --ease:   cubic-bezier(0.4, 0, 0.2, 1);
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur:    260ms;
  --dur-lg: 500ms;
}

/* ── 2. RESET & BASE ─────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 18px; }

body {
  font-family: var(--f-mono);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  cursor: none;
  overflow-x: hidden;
}

a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }

/* ── 3. CURSOR ───────────────────────────────── */
.c-dot, .c-ring {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  will-change: transform;
  border-radius: 50%;
}

.c-dot {
  width: 5px; height: 5px;
  background: var(--accent);
  transition: width .18s var(--ease), height .18s var(--ease),
              background .18s var(--ease);
}

.c-ring {
  width: 28px; height: 28px;
  border: 1px solid var(--accent);
  z-index: 9998;
  opacity: 0.5;
  transition: width .32s var(--spring), height .32s var(--spring),
              opacity .2s, border-color .2s;
}

.c-dot.hov  { width: 8px; height: 8px; }
.c-ring.hov { width: 44px; height: 44px; opacity: 0.22; }
.c-dot.press  { width: 3px; height: 3px; }
.c-ring.press { width: 18px; height: 18px; opacity: 1; }

@media (hover: none) { .c-dot, .c-ring { display: none; } body { cursor: auto; } }

/* ── 4. LINHA DECORATIVA ─────────────────────── */
.page-line {
  position: fixed;
  top: 0; left: calc(var(--pad) + 0.5rem);
  width: 1px;
  height: 100vh;
  background: linear-gradient(to bottom,
    transparent 0%, var(--border) 15%,
    var(--border) 85%, transparent 100%);
  z-index: 10;
  pointer-events: none;
  opacity: 0.45;
}

/* ── 5. LABELS & UTILITÁRIOS ─────────────────── */
.label {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--f-serif);
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.01em;
}

/* ── 6. PLACEHOLDERS DE IMAGEM ───────────────── */
.proj__img-ph,
.about__img-ph {
  width: 100%; height: 100%;
  min-height: 220px;
  background: color-mix(in srgb, var(--bg-2) 80%, var(--accent) 6%);
  border: 1px dashed var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.proj__img-ph span,
.about__img-ph span {
  font-family: var(--f-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--border);
}

/* ── 7. BOTÃO ────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 2rem;
  font-family: var(--f-mono);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: var(--ink);
  color: var(--bg);
  border: none;
  border-radius: 0;
  cursor: none;
  position: relative;
  overflow: hidden;
  transition: transform var(--dur) var(--spring);
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  transform: translateX(-101%);
  transition: transform var(--dur-lg) var(--ease);
}

.btn:hover::before  { transform: translateX(0); }
.btn:hover          { transform: translateY(-2px); }
.btn:active         { transform: scale(0.97); }

.btn__text, .btn__arrow { position: relative; z-index: 1; }
.btn__arrow { transition: transform var(--dur) var(--spring); }
.btn:hover .btn__arrow { transform: translateX(5px); }

/* ── 8. HEADER & NAV ─────────────────────────── */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 var(--pad);
  background: rgba(244, 243, 240, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}
.header.scrolled { border-color: var(--border); }

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  max-width: var(--w);
  margin-inline: auto;
}

/* Logo */
.header__logo {
  font-family: var(--f-serif);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink);
  transition: color var(--dur) var(--ease);
}
.header__logo:hover { color: var(--accent); }
.logo-dot { color: var(--accent); }

/* Nav */
.nav__list { display: flex; gap: 2.5rem; }

.nav__link {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-2);
  position: relative;
  transition: color var(--dur) var(--ease);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--dur) var(--ease);
}
.nav__link:hover { color: var(--ink); }
.nav__link:hover::after { width: 100%; }

/* Hamburger (mobile) */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none; border: none;
  cursor: none; padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px; height: 1px;
  background: var(--ink);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.open span:nth-child(2) { transform: translateY(-6px) rotate(-45deg); }

/* ── 9. HERO ─────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  padding-top: 60px;
  position: relative;
  overflow: hidden;
}

.hero__inner {
  flex: 1;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: var(--sp-md);
  width: min(100%, var(--w));
  margin-inline: auto;
  padding: var(--sp-lg) var(--pad) var(--sp-md);
}

/* Texto decorativo de fundo */
.hero__bg-word {
  position: absolute;
  bottom: 6%;
  right: -0.02em;
  font-family: var(--f-serif);
  font-size: clamp(10rem, 22vw, 22rem);
  font-weight: 300;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(37,99,235,0.07);
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.04em;
}

.hero__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-sm);
}

/* Status de disponibilidade */
.hero__available {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.hero__dot-status {
  width: 7px; height: 7px;
  background: #3B82F6;
  border-radius: 50%;
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(0.7); }
}

/* Nome principal */
.hero__name {
  display: flex;
  flex-direction: column;
  font-family: var(--f-serif);
  font-weight: 300;
  font-size: clamp(5.5rem, 14vw, 14rem);
  line-height: 0.88;
  letter-spacing: -0.03em;
  align-self: center;
}

.hero__name--last { padding-left: 10vw; }

.hero__name em {
  font-style: normal;
  color: var(--accent);
}

.hero__bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-md);
  flex-wrap: wrap;
}

.hero__desc {
  font-family: var(--f-mono);
  font-size: 0.92rem;
  color: var(--ink-2);
  line-height: 1.95;
  max-width: 38ch;
}

.hero__scroll {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-2);
  transition: color var(--dur) var(--ease), gap var(--dur) var(--spring);
}
.hero__scroll:hover { color: var(--ink); gap: 0.9rem; }
.hero__scroll-arrow { font-size: 1rem; }

/* Linha separadora animada */
.hero__rule {
  width: 100%;
  height: 1px;
  background: var(--border);
  transform-origin: left;
  animation: rule-expand 1.2s var(--ease) 0.8s both;
}

@keyframes rule-expand {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

/* ── 10. PROJETOS ────────────────────────────── */
.projects {
  padding-block: var(--sp-xl);
  width: min(100%, var(--w));
  margin-inline: auto;
  padding-inline: var(--pad);
}

.projects__header { margin-bottom: var(--sp-lg); }

.projects__list { display: flex; flex-direction: column; }

.proj { border-top: 1px solid var(--border); }
.proj:last-child { border-bottom: 1px solid var(--border); }

.proj__link {
  display: grid;
  grid-template-columns: 120px 1fr 280px;
  align-items: center;
  gap: 0 var(--sp-md);
  padding-block: var(--sp-md);
  position: relative;
  transition: background var(--dur) var(--ease);
}

.proj__link:hover { background: var(--accent-l); }

/* Número de índice */
.proj__index {
  font-family: var(--f-serif);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 300;
  color: var(--border);
  line-height: 1;
  transition: color var(--dur) var(--ease), transform var(--dur) var(--spring);
  display: block;
}
.proj:hover .proj__index {
  color: var(--accent);
  transform: scale(1.1) translateX(-4px);
}

.proj__tags {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-top: 4px;
}
.proj__tags span {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.proj__body { padding-right: var(--sp-sm); }

.proj__title {
  font-family: var(--f-serif);
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
  transition: letter-spacing var(--dur) var(--ease);
}
.proj:hover .proj__title { letter-spacing: 0.01em; }

.proj__desc {
  font-family: var(--f-mono);
  font-size: 0.85rem;
  color: var(--ink-2);
  line-height: 1.85;
  max-width: 50ch;
}

/* Imagem que desliza ao hover */
.proj__img {
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur-lg) var(--ease);
}
.proj:hover .proj__img { transform: scaleX(1); }

.proj__img img,
.proj__img .proj__img-ph { transition: transform var(--dur-lg) var(--ease); }
.proj:hover .proj__img img,
.proj:hover .proj__img .proj__img-ph { transform: scale(1.04); }

/* CTA que aparece no hover */
.proj__cta {
  position: absolute;
  bottom: var(--sp-sm); right: var(--pad);
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--spring);
}
.proj:hover .proj__cta { opacity: 1; transform: translateX(0); }

/* ── 11. STACK ───────────────────────────────── */
.stack {
  background: var(--ink);
  padding-block: var(--sp-xl);
  color: rgba(244,243,240,0.9);
}

.stack__inner {
  width: min(100%, var(--w));
  margin-inline: auto;
  padding-inline: var(--pad);
}

.stack .label { color: rgba(37,99,235,0.8); }

.stack__header { margin-bottom: var(--sp-lg); }
.stack__header .section-title { color: rgba(244,243,240,0.9); }

.stack__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid rgba(255,255,255,0.06);
}

/* Card de tecnologia */
.scard {
  padding: var(--sp-md);
  border: 1px solid rgba(255,255,255,0.06);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: background var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.scard:hover {
  background: rgba(37,99,235,0.07);
  border-color: rgba(37,99,235,0.25);
}

.scard__icon {
  width: 36px; height: 36px;
  color: rgba(244,243,240,0.4);
  transition: color var(--dur) var(--ease);
}
.scard:hover .scard__icon { color: rgba(37,99,235,0.8); }

.scard__name {
  font-family: var(--f-serif);
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: -0.01em;
  color: rgba(244,243,240,0.9);
}

.scard__desc {
  font-family: var(--f-mono);
  font-size: 0.82rem;
  color: rgba(244,243,240,0.4);
  line-height: 1.85;
  flex: 1;
}

/* Barra de nível */
.scard__level {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 4px;
}

.scard__level-bar {
  display: block;
  height: 2px;
  flex: 1;
  background: rgba(255,255,255,0.08);
  border-radius: 1px;
  position: relative;
  overflow: hidden;
}

.scard__level-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1s var(--ease);
  width: var(--w);
}

/* Anima a barra quando o card fica visível */
.scard.visible .scard__level-bar::after {
  transform: scaleX(1);
  width: var(--w);
}

.scard__level-pct {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(244,243,240,0.3);
  white-space: nowrap;
}

/* ── 12. SOBRE ───────────────────────────────── */
.about {
  padding-block: var(--sp-xl);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--sp-xl);
  align-items: start;
  width: min(100%, var(--w));
  margin-inline: auto;
  padding-inline: var(--pad);
}

.about__visual {
  position: sticky;
  top: calc(60px + 2rem);
}

.about__img-ph { aspect-ratio: 3/4; min-height: 0; }

.about__img-label {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-top: 0.75rem;
  text-align: center;
}

.about__text { display: flex; flex-direction: column; gap: var(--sp-md); }

.about__title {
  font-family: var(--f-serif);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.01em;
}
.about__title em { font-style: italic; color: var(--accent); }

.about__desc {
  font-family: var(--f-mono);
  font-size: 0.92rem;
  color: var(--ink-2);
  line-height: 1.95;
  max-width: 56ch;
}

.skills {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-md);
  padding-top: var(--sp-md);
  border-top: 1px solid var(--border);
}

.skills__col ul {
  margin-top: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.skills__col li {
  font-family: var(--f-mono);
  font-size: 0.85rem;
  color: var(--ink-2);
  padding-left: 1rem;
  position: relative;
}
.skills__col li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ── 13. CONTATO ─────────────────────────────── */
.contact { padding-block: var(--sp-xl); }

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--sp-xl);
  align-items: start;
  width: min(100%, var(--w));
  margin-inline: auto;
  padding-inline: var(--pad);
}

.contact__title {
  font-family: var(--f-serif);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-sm);
}
.contact__title em { font-style: italic; color: var(--accent); }

.contact__sub {
  font-family: var(--f-mono);
  font-size: 0.88rem;
  color: var(--ink-2);
  line-height: 1.85;
  max-width: 36ch;
  margin-bottom: var(--sp-md);
}

/* Lista de links de contato */
.contact__links {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact__link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-block: 0.9rem;
  border-top: 1px solid var(--border);
  transition: background var(--dur) var(--ease);
}
.contact__links li:last-child .contact__link { border-bottom: 1px solid var(--border); }

.contact__link:hover { background: var(--accent-l); }
.contact__link:hover .contact__link-arr { transform: translateX(5px); color: var(--accent); }

.contact__link-label {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-2);
  min-width: 72px;
}

.contact__link-val {
  font-family: var(--f-mono);
  font-size: 0.9rem;
  color: var(--ink);
  flex: 1;
  transition: color var(--dur) var(--ease);
}
.contact__link:hover .contact__link-val { color: var(--accent); }

.contact__link-arr {
  font-size: 0.85rem;
  color: var(--border);
  transition: transform var(--dur) var(--spring), color var(--dur) var(--ease);
}

/* Formulário */
.form { display: flex; flex-direction: column; gap: 1.2rem; }

.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }

.form__field { display: flex; flex-direction: column; gap: 0.4rem; }

.form__label {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.form__input {
  width: 100%;
  padding: 0.75rem 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  font-family: var(--f-mono);
  font-size: 0.95rem;
  color: var(--ink);
  outline: none;
  resize: vertical;
  transition: border-color var(--dur) var(--ease);
}
.form__input::placeholder { color: var(--border); }
.form__input:focus        { border-color: var(--accent); }

.form__textarea { min-height: 120px; }

.form__footer {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  flex-wrap: wrap;
}

.form__feedback {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  min-height: 1.2em;
}

/* ── 14. FOOTER ──────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding-block: var(--sp-md);
  background: var(--ink);
  color: rgba(244,243,240,0.5);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-sm);
  width: min(100%, var(--w));
  margin-inline: auto;
  padding-inline: var(--pad);
}

.footer__copy {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

.footer__social { display: flex; gap: 2rem; }

.footer__social-link {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(244,243,240,0.4);
  position: relative;
  transition: color var(--dur) var(--ease);
}
.footer__social-link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--dur) var(--ease);
}
.footer__social-link:hover { color: rgba(244,243,240,0.9); }
.footer__social-link:hover::after { width: 100%; }

.footer__back {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(244,243,240,0.4);
  transition: color var(--dur) var(--ease);
}
.footer__back:hover { color: var(--accent); }

/* ── 15. ANIMAÇÕES DE REVEAL ─────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Reveal das linhas do nome */
.hero__name--first,
.hero__name--last {
  display: block;
  overflow: hidden;
  transform: translateY(105%);
  opacity: 0;
  transition: transform 1s var(--ease), opacity 0.6s var(--ease);
}
.hero__name--first.visible { transform: translateY(0); opacity: 1; }
.hero__name--last.visible  {
  transform: translateY(0); opacity: 1;
  transition-delay: 0.14s;
}

/* Atrasos na hero */
.hero__top    .reveal { transition-delay: 0.3s; }
.hero__bottom .reveal:nth-child(1) { transition-delay: 0.6s; }
.hero__bottom .reveal:nth-child(2) { transition-delay: 0.75s; }

/* Atrasos nos cards de stack */
.scard:nth-child(1) { transition-delay: 0s; }
.scard:nth-child(2) { transition-delay: 0.07s; }
.scard:nth-child(3) { transition-delay: 0.14s; }
.scard:nth-child(4) { transition-delay: 0.07s; }
.scard:nth-child(5) { transition-delay: 0.14s; }
.scard:nth-child(6) { transition-delay: 0.21s; }

/* ── 16. RESPONSIVIDADE ──────────────────────── */
@media (max-width: 960px) {
  .stack__grid { grid-template-columns: repeat(2, 1fr); }

  .proj__link {
    grid-template-columns: 80px 1fr;
    grid-template-rows: auto auto auto;
  }
  .proj__img { grid-column: 1 / -1; }

  .about__inner,
  .contact__inner { grid-template-columns: 1fr; gap: var(--sp-lg); }
  .about__visual { position: static; }
  .about__img-ph { aspect-ratio: 4/3; }
}

@media (max-width: 768px) {
  .page-line { display: none; }

  .hamburger { display: flex; }

  .nav {
    position: absolute;
    top: 60px; left: 0; right: 0;
    background: rgba(244,243,240,0.97);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: var(--sp-md);
    clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
    transition: clip-path 0.35s var(--ease);
    pointer-events: none;
  }
  .nav.open {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    pointer-events: auto;
  }
  .nav__list { flex-direction: column; gap: 1.25rem; }
  .nav__link { font-size: 1.05rem; }

  .hero__name { font-size: clamp(4.5rem, 18vw, 10rem); }
  .hero__name--last { padding-left: 5vw; }

  .stack__grid { grid-template-columns: 1fr; }

  .form__row { grid-template-columns: 1fr; }

  .footer__inner { flex-direction: column; align-items: flex-start; gap: 1rem; }
}

@media (max-width: 480px) {
  :root { --pad: 1.2rem; }
  .hero__bottom { flex-direction: column; align-items: flex-start; }
  .skills { grid-template-columns: 1fr; }
}