/* ============================================================
   BERNARDO RAPOSO
   ============================================================ */

:root {
  --bg:      #0C0C0B;
  --surface: #111110;
  --text:    #EFEFED;
  --text-2:  #5C5C58;
  --text-3:  #323230;
  --accent:  #00C9A7;
  --border:  #1E1E1C;
  --border-2:#2A2A28;

  --font-display: 'Space Grotesk', -apple-system, sans-serif;
  --font-body:    'Inter', -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --max-w: 1200px;
  --px:    clamp(1.5rem, 6vw, 4rem);
  --py:    clamp(4rem, 8vw, 7rem);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --t1: 0.12s;
  --t2: 0.25s;
  --t3: 0.5s;
}

/* ── LOADER ─────────────────────────────────────────────────── */

#loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
#loader.out {
  opacity: 0;
  pointer-events: none;
}
.loader__monogram {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: clamp(3.5rem, 12vw, 7rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #000;
  animation: loader-in 0.25s ease forwards;
}
@keyframes loader-in {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

/* ── RESET ─────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; color: inherit; }
ul, ol { list-style: none; }
img, video { max-width: 100%; display: block; }
::selection { background: var(--accent); color: #000; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-2); }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── LAYOUT ─────────────────────────────────────────────────── */

.container { max-width: var(--max-w); margin-inline: auto; padding-inline: var(--px); }

.section {
  padding-block: var(--py);
  border-top: 1px solid var(--border);
}
.section--alt { background: transparent; }

/* ── SECTION HEADER ─────────────────────────────────────────── */

.section-header { margin-bottom: clamp(2.5rem, 5vw, 4rem); }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.section-label::before {
  content: '';
  display: block;
  width: 16px;
  height: 1px;
  background: var(--accent);
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5.5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.05;
  color: var(--text);
}

.section-sub {
  margin-top: 0.75rem;
  font-size: 1rem;
  color: var(--text-2);
  max-width: 44ch;
  line-height: 1.65;
}

/* ── SCROLL REVEAL ──────────────────────────────────────────── */

[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--t3) var(--ease), transform var(--t3) var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: 0.06s; }
[data-reveal][data-delay="2"] { transition-delay: 0.12s; }
[data-reveal][data-delay="3"] { transition-delay: 0.18s; }
[data-reveal][data-delay="4"] { transition-delay: 0.24s; }
[data-reveal][data-delay="5"] { transition-delay: 0.30s; }
[data-reveal][data-delay="6"] { transition-delay: 0.36s; }
[data-reveal][data-delay="7"] { transition-delay: 0.42s; }
[data-reveal][data-delay="8"] { transition-delay: 0.48s; }

/* ── BUTTONS ─────────────────────────────────────────────────── */

.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-display); font-size: 0.875rem; font-weight: 600;
  letter-spacing: 0.01em; border-radius: 2px;
  transition: all var(--t2) var(--ease); cursor: pointer; white-space: nowrap;
}
.btn--primary { background: var(--accent); color: #000; border: 1px solid var(--accent); }
.btn--primary:hover { background: #00b090; border-color: #00b090; }
.btn--ghost { background: transparent; color: var(--text); border: 1px solid var(--border-2); }
.btn--ghost:hover { border-color: var(--text-2); }
.btn--ghost svg { transition: transform var(--t1); }
.btn--ghost:hover svg { transform: translateX(3px); }

/* ── NAV ─────────────────────────────────────────────────────── */

.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1.25rem var(--px);
  display: flex; align-items: center; justify-content: space-between;
  transition: background var(--t2), border-color var(--t2);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(12,12,11,0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
  padding-block: 0.875rem;
}
.nav__logo {
  font-family: var(--font-mono); font-size: 0.875rem; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--text);
  transition: color var(--t1);
}
.nav__logo span { color: var(--accent); }
.nav__logo:hover { color: var(--accent); }
.nav__links { display: flex; align-items: center; }
.nav__link {
  padding: 0.5rem 0.875rem; font-size: 0.8125rem; font-weight: 400;
  color: var(--text-2); transition: color var(--t1); letter-spacing: 0.01em;
}
.nav__link:hover { color: var(--text); }
.nav__cta {
  padding: 0.5rem 1.125rem; font-size: 0.8125rem; font-weight: 500;
  font-family: var(--font-display); border: 1px solid var(--border-2);
  border-radius: 2px; color: var(--text); transition: all var(--t2);
}
.nav__cta:hover { border-color: var(--accent); color: var(--accent); }
.nav__hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.nav__hamburger span { display: block; width: 20px; height: 1px; background: var(--text); transition: all var(--t2) var(--ease); transform-origin: center; }
.nav__hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.nav__mobile {
  display: none; position: fixed; inset: 0; background: var(--bg); z-index: 99;
  padding: 6rem var(--px) 3rem; flex-direction: column;
  opacity: 0; pointer-events: none; transition: opacity var(--t2);
}
.nav__mobile.open { opacity: 1; pointer-events: all; }
.nav__mobile-link {
  font-family: var(--font-display); font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: 700; letter-spacing: -0.025em; color: var(--text-2);
  padding: 0.75rem 0; border-bottom: 1px solid var(--border); transition: color var(--t2);
}
.nav__mobile-link:hover { color: var(--text); }

/* ── HERO ────────────────────────────────────────────────────── */

.hero {
  min-height: 100svh;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 6rem;
  padding-bottom: 5rem;
  padding-inline: var(--px);
  overflow: hidden;
}

/* Aurora — dois blobs de gradiente que respiram lentamente */
.hero::before,
.hero::after {
  content: '';
  position: absolute;
  z-index: 0;
  pointer-events: none;
  border-radius: 50%;
}

.hero::before {
  width: 140%;
  height: 70%;
  top: -18%;
  left: -20%;
  background: radial-gradient(
    ellipse 55% 70% at 45% 50%,
    rgba(0, 201, 167, 0.18) 0%,
    rgba(0, 201, 167, 0.06) 45%,
    transparent 70%
  );
  filter: blur(52px);
  animation: aurora-a 22s ease-in-out infinite alternate;
}

.hero::after {
  width: 110%;
  height: 60%;
  top: 10%;
  right: -30%;
  background: radial-gradient(
    ellipse 65% 60% at 55% 45%,
    rgba(0, 201, 167, 0.12) 0%,
    transparent 65%
  );
  filter: blur(72px);
  animation: aurora-b 28s ease-in-out infinite alternate;
}

@keyframes aurora-a {
  0%   { transform: translate(0,    0)   scale(1.00); opacity: 0.7; }
  35%  { transform: translate(4%,   7%)  scale(1.09); opacity: 1.0; }
  70%  { transform: translate(-3%,  3%)  scale(0.96); opacity: 0.8; }
  100% { transform: translate(7%,  -5%)  scale(1.04); opacity: 0.9; }
}

@keyframes aurora-b {
  0%   { transform: translate(0,    0)   scale(1.00); opacity: 0.55; }
  45%  { transform: translate(-8%,  9%)  scale(1.13); opacity: 0.90; }
  100% { transform: translate(5%,  -7%)  scale(0.91); opacity: 0.65; }
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero__label {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.625rem;
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--text-2); margin-bottom: 2rem;
}
.hero__label::before {
  content: ''; display: block; width: 16px; height: 1px; background: var(--accent);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 700; letter-spacing: -0.045em; line-height: 0.95;
  color: var(--text); margin-bottom: 2rem;
}
.hero__title em { font-style: normal; color: var(--accent); }

.hero__bio {
  font-size: 1rem; color: var(--text-2); line-height: 1.75;
  max-width: 44ch; margin-inline: auto; margin-bottom: 2.5rem;
}

.hero__ctas { display: flex; justify-content: center; gap: 0.75rem; flex-wrap: wrap; }

.hero__scroll {
  margin-top: 4rem; display: flex; align-items: center; justify-content: center; gap: 0.75rem;
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--text-3);
}
.hero__scroll-line { width: 32px; height: 1px; background: var(--accent); opacity: 0.35; }

/* ── TIMELINE ────────────────────────────────────────────────── */

.timeline-h {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  padding-bottom: 1rem;
}
.timeline-h::before {
  content: '';
  position: absolute;
  top: 3.4rem;
  left: calc(100% / 10);
  right: calc(100% / 10);
  height: 1px;
  background: var(--border);
  pointer-events: none;
}
.timeline-h__item {
  display: flex; flex-direction: column; align-items: center;
  text-align: center; padding: 0 0.5rem 2rem; cursor: default;
}
.timeline-h__year {
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--accent);
  height: 2.5rem; display: flex; align-items: center;
  transition: letter-spacing var(--t2);
}
.timeline-h__item:hover .timeline-h__year { letter-spacing: 0.2em; }
.timeline-h__dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--border-2);
  position: relative; z-index: 2; flex-shrink: 0;
  transition: all var(--t2) var(--ease); margin-bottom: 1.25rem;
}
.timeline-h__item:hover .timeline-h__dot {
  background: var(--accent); border-color: var(--accent); transform: scale(1.3);
}
.timeline-h__content { padding: 0 0.25rem; }
.timeline-h__title {
  font-family: var(--font-display); font-size: 0.8125rem; font-weight: 600;
  color: var(--text-2); margin-bottom: 0.35rem; line-height: 1.3; transition: color var(--t2);
}
.timeline-h__item:hover .timeline-h__title { color: var(--text); }
.timeline-h__desc {
  font-size: 0.75rem; color: var(--text-3); line-height: 1.5;
  max-height: 0; overflow: hidden; opacity: 0;
  transition: max-height var(--t3) var(--ease), opacity var(--t2) 0.1s;
}
.timeline-h__item:hover .timeline-h__desc { max-height: 100px; opacity: 1; }

/* ── PROJECTS ── grid com bordas partilhadas ─────────────────── */

.projects__filters {
  display: flex; gap: 0.25rem; margin-bottom: 2rem; flex-wrap: wrap;
}
.filter-btn {
  padding: 0.3rem 0.875rem;
  font-family: var(--font-mono); font-size: 0.62rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  border: 1px solid var(--border); border-radius: 2px;
  color: var(--text-3); transition: all var(--t1);
}
.filter-btn:hover { color: var(--text); border-color: var(--border-2); }
.filter-btn.active { border-color: var(--accent); color: var(--accent); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.proj {
  position: relative;
  padding: 2rem 2rem 2rem 2.25rem;
  display: flex; flex-direction: column;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background var(--t2);
  overflow: hidden;
}
.proj:hover { background: rgba(255,255,255,0.025); }

.proj::before {
  content: ''; position: absolute;
  left: 0; top: 0; bottom: 0; width: 1px;
  background: var(--accent);
  transform: scaleY(0); transform-origin: top;
  transition: transform var(--t3) var(--ease);
}
.proj:hover::before { transform: scaleY(1); }

.proj.hidden { display: none; }

.proj__header {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem;
}
.proj__num {
  font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.14em; color: var(--text-3);
}
.proj__status {
  font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.18rem 0.6rem; border-radius: 2px;
}
.proj__status--active   { color: #22c55e; border: 1px solid rgba(34,197,94,0.2); }
.proj__status--building { color: #eab308; border: 1px solid rgba(234,179,8,0.2); }
.proj__status--past     { color: var(--text-3); border: 1px solid var(--border); }
.proj__status--idea     { color: #8b5cf6; border: 1px solid rgba(139,92,246,0.2); }

.proj__divider { height: 1px; background: var(--border); margin-bottom: 1.25rem; }

.proj__title {
  font-family: var(--font-display); font-size: 1.375rem; font-weight: 700;
  letter-spacing: -0.02em; color: var(--text); line-height: 1.2; margin-bottom: 0.25rem;
}
.proj__year {
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.1em;
  color: var(--text-3); margin-bottom: 0.875rem;
}
.proj__desc { font-size: 0.9rem; color: var(--text-2); line-height: 1.65; flex: 1; margin-bottom: 1.5rem; }

.proj__footer { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-top: auto; }
.proj__tags { display: flex; flex-wrap: wrap; gap: 0.3rem; }
.proj__tag {
  font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.2rem 0.55rem; border: 1px solid var(--border); color: var(--text-3); border-radius: 2px;
}
.proj__link {
  font-family: var(--font-mono); font-size: 0.62rem; font-weight: 500;
  color: var(--text-3); display: inline-flex; align-items: center; gap: 0.3rem;
  letter-spacing: 0.08em; text-transform: uppercase; transition: color var(--t1); white-space: nowrap;
}
.proj__link:hover { color: var(--accent); }
.proj__link svg { transition: transform var(--t1); }
.proj__link:hover svg { transform: translate(2px, -2px); }

/* ── INTERESTS ── grid com bordas partilhadas ────────────────── */

.interests-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.interest {
  position: relative;
  padding: 1.75rem 1.5rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  transition: background var(--t2);
  cursor: default;
}
.interest:hover { background: rgba(255,255,255,0.02); }

.interest::after {
  content: ''; position: absolute; top: 0; left: 0;
  width: 0; height: 1px; background: var(--accent);
  transition: width var(--t3) var(--ease);
}
.interest:hover::after { width: 100%; }

.interest__glyph {
  display: block; font-size: 1rem; margin-bottom: 1rem;
  color: var(--text-3); line-height: 1; font-family: var(--font-mono);
  transition: color var(--t2);
}
.interest:hover .interest__glyph { color: var(--accent); }
.interest__title {
  font-family: var(--font-display); font-size: 0.9375rem; font-weight: 600;
  color: var(--text); margin-bottom: 0.375rem; letter-spacing: -0.01em; line-height: 1.25;
}
.interest__desc { font-size: 0.8rem; color: var(--text-3); line-height: 1.55; }

/* ── FOOTER ───────────────────────────────────────────────────── */

.footer {
  padding-block: clamp(4rem, 8vw, 7rem) 3rem;
  padding-inline: var(--px);
  max-width: var(--max-w); margin-inline: auto;
  border-top: 1px solid var(--border);
}
.footer__top {
  display: grid; grid-template-columns: 1fr auto;
  align-items: end; gap: 3rem;
  padding-bottom: 3.5rem; border-bottom: 1px solid var(--border); margin-bottom: 2.5rem;
}
.footer__headline {
  font-family: var(--font-display); font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700; letter-spacing: -0.04em; line-height: 1.0; color: var(--text);
}
.footer__headline em { font-style: normal; color: var(--accent); }
.footer__email-btn {
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.05em;
  padding: 0.875rem 1.75rem; border: 1px solid var(--border-2);
  color: var(--text); display: flex; align-items: center; gap: 0.5rem;
  border-radius: 2px; white-space: nowrap; transition: all var(--t2);
}
.footer__email-btn:hover { background: var(--accent); border-color: var(--accent); color: #000; }
.footer__bottom {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1.5rem;
}
.footer__socials { display: flex; gap: 0.375rem; }
.footer__social {
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: 2px; color: var(--text-3); transition: all var(--t1);
}
.footer__social:hover { color: var(--text); border-color: var(--border-2); }
.footer__copy { font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.1em; color: var(--text-3); }

/* ── RESPONSIVE ───────────────────────────────────────────────── */

@media (max-width: 1024px) {

}
@media (max-width: 900px) {
  .timeline-h { grid-template-columns: repeat(3, 1fr); }
  .timeline-h::before { left: calc(100% / 6); right: calc(100% / 6); }
}
@media (max-width: 768px) {
  .nav__links, .nav__cta { display: none; }
  .nav__hamburger { display: flex; }
  .nav__mobile { display: flex; }
  .footer__top { grid-template-columns: 1fr; align-items: start; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .timeline-h { grid-template-columns: 1fr; }
  .timeline-h::before { display: none; }
  .timeline-h__item {
    flex-direction: row; text-align: left;
    padding: 1rem 0; border-bottom: 1px solid var(--border); gap: 1.25rem; align-items: flex-start;
  }
  .timeline-h__year { height: auto; width: 3rem; flex-shrink: 0; padding-top: 0.1rem; }
  .timeline-h__dot { margin-bottom: 0; margin-top: 0.2rem; flex-shrink: 0; }
  .timeline-h__content { text-align: left; }
  .timeline-h__desc { max-height: none !important; opacity: 1 !important; }
}
@media (max-width: 480px) {
  .projects-grid { grid-template-columns: 1fr; }
  .interests-grid { grid-template-columns: repeat(2, 1fr); }
}