/* ============================================
   TIAGO BARROS — PERSONAL SITE
   Porto FC palette + editorial magazine style
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,700;0,900;1,700&family=DM+Sans:wght@300;400;500;600&family=DM+Mono:wght@400;500&display=swap');

:root {
  --porto-blue:   #323334;
  --porto-red:    #EE3524;
  --porto-white:  #F5F3EE;
  --porto-gold:   #C9A84C;
  --near-black:   #0D0D0D;
  --mid-grey:     #6B6B6B;
  --light-grey:   #E8E5DF;
  --card-bg:      #FFFFFF;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;

  --nav-h: 72px;
  --max-w: 1280px;
  --radius: 2px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--porto-white);
  color: var(--near-black);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── UTILITY ── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 40px; }
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid currentColor;
  border-radius: 2px;
}
.tag--blue  { color: var(--porto-blue);  border-color: var(--porto-blue); }
.tag--red   { color: var(--porto-red);   border-color: var(--porto-red); }
.tag--gold  { color: var(--porto-gold);  border-color: var(--porto-gold); }

.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--porto-red);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--porto-red);
  opacity: .3;
  max-width: 60px;
}

/* ── NAV ── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  background: var(--near-black);
  border-bottom: 3px solid var(--porto-red);
  display: flex;
  align-items: center;
  transition: box-shadow .3s;
}
#navbar.scrolled { box-shadow: 0 4px 40px rgba(0,0,0,.4); }

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 900;
  color: var(--porto-white);
  letter-spacing: -.01em;
}
.nav-logo span { color: var(--porto-red); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 36px;
  align-items: center;
}
.nav-links a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: rgba(245,243,238,.7);
  transition: color .2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--porto-red);
  transform: scaleX(0);
  transition: transform .2s;
  transform-origin: left;
}
.nav-links a:hover, .nav-links a.active { color: var(--porto-white); }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }

.nav-cta {
  background: var(--porto-red);
  color: var(--porto-white) !important;
  padding: 10px 22px;
  font-size: 12px !important;
  font-weight: 600 !important;
  letter-spacing: .1em;
  text-transform: uppercase;
  transition: background .2s !important;
}
.nav-cta:hover { background: #c42a1c !important; }
.nav-cta::after { display: none !important; }

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--porto-white); transition: .3s; }

/* ── HERO ── */
#hero {
  min-height: 100vh;
  background: var(--near-black);
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}

.hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 79px,
      rgba(255,255,255,.03) 79px,
      rgba(255,255,255,.03) 80px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 79px,
      rgba(255,255,255,.03) 79px,
      rgba(255,255,255,.03) 80px
    );
}

.hero-accent {
  position: absolute;
  top: 0; right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(135deg, var(--porto-blue) 0%, #5f6062 100%);
  clip-path: polygon(12% 0, 100% 0, 100% 100%, 0 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 40px 80px 80px;
  max-width: 680px;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--porto-gold);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 40px;
  height: 2px;
  background: var(--porto-gold);
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(52px, 6vw, 96px);
  font-weight: 900;
  line-height: .95;
  color: var(--porto-white);
  margin-bottom: 24px;
}
.hero-name em {
  font-style: italic;
  color: var(--porto-red);
}

.hero-title {
  font-size: 18px;
  font-weight: 300;
  color: rgba(245,243,238,.65);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 48px;
}
.hero-title strong { color: var(--porto-white); font-weight: 500; }

.hero-stats {
  display: flex;
  gap: 40px;
  margin-bottom: 52px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.stat-item {}
.stat-num {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 700;
  color: var(--porto-white);
  line-height: 1;
}
.stat-num span { color: var(--porto-red); }
.stat-label {
  font-size: 12px;
  color: rgba(245,243,238,.5);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-top: 4px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all .25s;
  border: none;
  border-radius: var(--radius);
}
.btn-primary {
  background: var(--porto-red);
  color: var(--porto-white);
}
.btn-primary:hover { background: #c42a1c; transform: translateY(-2px); }
.btn-secondary {
  background: transparent;
  color: var(--porto-white);
  border: 1.5px solid rgba(255,255,255,.3);
}
.btn-secondary:hover { border-color: var(--porto-white); transform: translateY(-2px); }

.hero-image-col {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 60px 60px 0;
}
.hero-photo-frame {
  width: 100%;
  max-width: 420px;
  aspect-ratio: 3/4;
  background: rgba(0,48,135,.3);
  border: 1px solid rgba(201,168,76,.2);
  position: relative;
  overflow: hidden;
}
.hero-photo-frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(20%);
}
.hero-photo-placeholder {
  width: 100%; height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: rgba(245,243,238,.3);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
}
.hero-photo-placeholder .icon {
  width: 64px; height: 64px;
  border: 1px solid rgba(245,243,238,.15);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
}
.hero-photo-badge {
  position: absolute;
  bottom: 24px; right: -8px;
  background: var(--porto-gold);
  color: var(--near-black);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .1em;
  padding: 10px 20px;
  text-transform: uppercase;
}

/* ── TICKER ── */
.ticker-wrap {
  background: var(--porto-blue);
  padding: 14px 0;
  overflow: hidden;
  position: relative;
}
.ticker-track {
  display: flex;
  gap: 0;
  animation: ticker 35s linear infinite;
  width: max-content;
}
.ticker-track:hover { animation-play-state: paused; }
.ticker-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 40px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(245,243,238,.7);
  white-space: nowrap;
}
.ticker-item::after {
  content: '◆';
  color: var(--porto-red);
  font-size: 8px;
}
@keyframes ticker {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ── SECTIONS ── */
.section {
  padding: 100px 0;
}
.section--dark {
  background: var(--near-black);
  color: var(--porto-white);
}
.section--blue {
  background: var(--porto-blue);
  color: var(--porto-white);
}
.section--grey { background: #F0EDE7; }

.section-header {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  margin-bottom: 60px;
  gap: 20px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 60px);
  font-weight: 700;
  line-height: 1.05;
}
.section-title em { font-style: italic; color: var(--porto-red); }
.section-title--light { color: var(--porto-white); }

/* ── EXPERIENCE CARDS ── */
.exp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2px;
}

.exp-card {
  background: var(--card-bg);
  border: 1px solid var(--light-grey);
  padding: 36px;
  cursor: pointer;
  transition: all .3s;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: block;
}
.exp-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--porto-blue);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform .3s;
}
.exp-card:hover::before { transform: scaleY(1); }
.exp-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,.1);
  border-color: var(--porto-blue);
}
.exp-card:hover .card-arrow { transform: translate(4px, -4px); }

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.card-period {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mid-grey);
  text-transform: uppercase;
}
.card-logo {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  font-weight: 700;
  font-family: var(--font-display);
}
.card-logo--blue  { background: var(--porto-blue);  color: var(--porto-white); }
.card-logo--red   { background: var(--porto-red);   color: var(--porto-white); }
.card-logo--gold  { background: var(--porto-gold);  color: var(--near-black); }
.card-logo--dark  { background: var(--near-black);  color: var(--porto-white); }

.card-company {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--porto-red);
  margin-bottom: 8px;
}
.card-role {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 12px;
}
.card-location {
  font-size: 13px;
  color: var(--mid-grey);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.card-excerpt {
  font-size: 14px;
  color: var(--mid-grey);
  line-height: 1.6;
  margin-bottom: 24px;
}
.card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }
.card-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  background: var(--light-grey);
  color: var(--mid-grey);
  padding: 4px 10px;
  border-radius: 2px;
}
.card-arrow {
  font-size: 20px;
  color: var(--porto-blue);
  transition: transform .3s;
  display: inline-block;
}

/* ── SKILLS SECTION ── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.skill-item {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  padding: 20px 24px;
  transition: all .25s;
}
.skill-item:hover {
  background: rgba(238,53,36,.1);
  border-color: var(--porto-red);
}
.skill-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--porto-white);
  margin-bottom: 8px;
}
.skill-bar {
  height: 2px;
  background: rgba(255,255,255,.1);
  border-radius: 2px;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--porto-red), var(--porto-gold));
  border-radius: 2px;
  width: 0;
  transition: width 1.2s cubic-bezier(.25,.8,.25,1);
}

/* ── PUBLICATIONS ── */
.pub-list { display: flex; flex-direction: column; gap: 2px; }
.pub-card {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.08);
  padding: 32px 40px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  align-items: start;
  transition: all .25s;
}
.pub-card:hover {
  background: rgba(255,255,255,.06);
  border-color: rgba(201,168,76,.3);
}
.pub-year {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: rgba(201,168,76,.3);
  line-height: 1;
  min-width: 80px;
}
.pub-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--porto-white);
  margin-bottom: 8px;
  line-height: 1.3;
}
.pub-authors {
  font-size: 13px;
  color: rgba(245,243,238,.5);
  margin-bottom: 12px;
}
.pub-journal {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--porto-gold);
  text-transform: uppercase;
}
.pub-doi {
  display: inline-block;
  margin-top: 12px;
  font-size: 12px;
  color: var(--porto-red);
  text-decoration: underline;
  word-break: break-all;
}

/* ── ABOUT ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-photo-wrap {
  position: relative;
}
.about-photo {
  aspect-ratio: 4/5;
  background: var(--light-grey);
  overflow: hidden;
  position: relative;
}
.about-photo img { width: 100%; height: 100%; object-fit: cover; }
.about-photo-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 80px;
  font-weight: 700;
  color: var(--porto-blue);
  background: linear-gradient(135deg, #E8E5DF, #d5d1c8);
}
.about-photo-border {
  position: absolute;
  top: 20px; left: 20px; right: -20px; bottom: -20px;
  border: 2px solid var(--porto-red);
  z-index: -1;
}
.about-text {}
.about-lead {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 24px;
}
.about-lead em { font-style: italic; color: var(--porto-red); }
.about-body {
  font-size: 16px;
  color: var(--mid-grey);
  line-height: 1.8;
  margin-bottom: 32px;
}
.interests-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 40px;
}
.interest-item {
  background: var(--light-grey);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 500;
  transition: all .25s;
}
.interest-item:hover { background: var(--porto-blue); color: var(--porto-white); }
.interest-icon { font-size: 20px; }

.achievements-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.achievement-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 20px;
  border-left: 3px solid var(--porto-red);
  background: var(--light-grey);
}
.achievement-num {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--porto-red);
  line-height: 1;
  min-width: 40px;
}
.achievement-text { font-size: 14px; line-height: 1.5; }
.achievement-text strong { display: block; font-weight: 600; margin-bottom: 2px; }

/* ── CONTACT ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.contact-intro {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
}
.contact-intro em { font-style: italic; color: var(--porto-gold); }
.contact-sub { font-size: 16px; color: rgba(245,243,238,.6); line-height: 1.7; margin-bottom: 40px; }
.contact-links { display: flex; flex-direction: column; gap: 16px; }
.contact-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 24px;
  border: 1px solid rgba(255,255,255,.1);
  color: var(--porto-white);
  font-size: 14px;
  transition: all .25s;
}
.contact-link:hover { border-color: var(--porto-gold); background: rgba(201,168,76,.05); }
.contact-link-icon { font-size: 20px; }
.contact-link-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--mid-grey); display: block; margin-bottom: 2px; }

.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(245,243,238,.5);
}
.form-input, .form-textarea {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--porto-white);
  transition: border-color .25s;
  outline: none;
  border-radius: 0;
}
.form-input:focus, .form-textarea:focus { border-color: var(--porto-gold); }
.form-textarea { resize: vertical; min-height: 120px; }

/* ── FOOTER ── */
footer {
  background: #000;
  border-top: 3px solid var(--porto-red);
  padding: 60px 0 32px;
  color: var(--porto-white);
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}
.footer-brand-name {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 900;
  margin-bottom: 12px;
}
.footer-brand-name span { color: var(--porto-red); }
.footer-brand-desc { font-size: 14px; color: rgba(255,255,255,.45); line-height: 1.7; }
.footer-col-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--porto-gold);
  margin-bottom: 20px;
}
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,.5); transition: color .2s; }
.footer-links a:hover { color: var(--porto-white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,.3);
  font-family: var(--font-mono);
}

/* ── EXPERIENCE SUBPAGE ── */
.exp-hero {
  background: var(--near-black);
  padding: calc(var(--nav-h) + 60px) 0 80px;
  position: relative;
  overflow: hidden;
}
.exp-hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--porto-blue) 0%, transparent 60%);
  opacity: .2;
}
.exp-hero-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--porto-gold);
  margin-bottom: 16px;
}
.exp-hero-role {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 72px);
  font-weight: 900;
  color: var(--porto-white);
  line-height: 1;
  margin-bottom: 16px;
}
.exp-hero-company { font-size: 22px; color: var(--porto-red); font-weight: 600; margin-bottom: 24px; }
.exp-hero-meta {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.exp-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(245,243,238,.6);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

.exp-body { padding: 80px 0; }
.exp-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 80px;
  align-items: start;
}
.exp-content-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--porto-red);
}
.exp-content-body { font-size: 15px; line-height: 1.8; color: var(--mid-grey); margin-bottom: 40px; }
.exp-achievements { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-bottom: 40px; }
.exp-achievement {
  display: flex;
  gap: 16px;
  padding: 16px 20px;
  background: var(--light-grey);
  border-left: 3px solid var(--porto-blue);
  font-size: 14px;
  line-height: 1.6;
}
.exp-achievement-dot { color: var(--porto-blue); font-weight: 700; flex-shrink: 0; margin-top: 2px; }

.exp-sidebar {}
.exp-sidebar-card {
  background: var(--near-black);
  color: var(--porto-white);
  padding: 32px;
  margin-bottom: 24px;
}
.exp-sidebar-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--porto-gold);
  margin-bottom: 20px;
}
.exp-sidebar-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.exp-sidebar-list li { font-size: 13px; color: rgba(245,243,238,.7); display: flex; align-items: center; gap: 8px; }
.exp-sidebar-list li::before { content: '→'; color: var(--porto-red); }

.portfolio-zone {
  border: 2px dashed var(--porto-gold);
  padding: 48px 32px;
  text-align: center;
  background: rgba(201,168,76,.03);
}
.portfolio-zone-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--porto-gold);
  margin-bottom: 12px;
}
.portfolio-zone-hint {
  font-size: 13px;
  color: var(--mid-grey);
  margin-bottom: 20px;
}
.portfolio-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0px; margin-top: 0px; }
.portfolio-thumb {
  aspect-ratio: 16/10;
  background: var(--light-grey);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px;
  color: var(--mid-grey);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  cursor: pointer;
  transition: all .25s;
  border: 1px dashed rgba(0,48,135,.3);
}
.portfolio-thumb:hover { border-color: var(--porto-blue); background: rgba(0,48,135,.05); }

/* ── BACK BUTTON ── */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--porto-gold);
  margin-bottom: 40px;
  transition: gap .2s;
}
.back-btn:hover { gap: 14px; }

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }

/* ── BOLD/CREATIVE ENHANCEMENTS ── */

/* Oversized decorative section numbers */
.section-num {
  font-family: var(--font-display);
  font-size: clamp(120px, 18vw, 220px);
  font-weight: 900;
  line-height: .85;
  color: transparent;
  -webkit-text-stroke: 1px rgba(0,48,135,.12);
  pointer-events: none;
  user-select: none;
  position: absolute;
  right: -20px;
  top: -40px;
  z-index: 0;
}
.section-num--light { -webkit-text-stroke: 1px rgba(245,243,238,.06); }

/* Diagonal accent strip between sections */
.diagonal-divider {
  height: 80px;
  background: var(--near-black);
  clip-path: polygon(0 0, 100% 0, 100% 40%, 0 100%);
  margin-top: -2px;
}
.diagonal-divider--up {
  clip-path: polygon(0 0, 100% 60%, 100% 100%, 0 100%);
  background: var(--porto-blue);
}

/* Bold pull-quote style */
.pull-quote {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 700;
  font-style: italic;
  line-height: 1.3;
  border-left: 6px solid var(--porto-red);
  padding: 20px 32px;
  margin: 40px 0;
  background: var(--light-grey);
  position: relative;
}
.pull-quote::before {
  content: '"';
  font-size: 120px;
  color: rgba(0,48,135,.1);
  font-family: var(--font-display);
  position: absolute;
  top: -20px; left: 20px;
  line-height: 1;
}

/* Interest items — bolder hover */
.interest-item {
  cursor: default;
  position: relative;
  overflow: hidden;
}
.interest-item::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--porto-red), var(--porto-gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s;
}
.interest-item:hover::after { transform: scaleX(1); }
.interest-item:hover .interest-icon { animation: bounce .4s ease; }

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  40%       { transform: translateY(-8px); }
  70%       { transform: translateY(-4px); }
}

/* Achievement items — red number glow on hover */
.achievement-item:hover .achievement-num {
  text-shadow: 0 0 20px rgba(238,53,36,.4);
}

/* Stronger exp card hover — red top bar instead of left */
.exp-card:hover {
  box-shadow: 0 0 0 2px var(--porto-red), 0 20px 60px rgba(0,0,0,.12);
  border-color: var(--porto-red);
}

/* Hero eyebrow — pulsing dot */
.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--porto-red);
  border-radius: 50%;
  animation: pulse 2s infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .4; transform: scale(1.5); }
}

/* Nav logo — subtle underline flicker */
.nav-logo:hover span {
  animation: flicker .15s 2;
}
@keyframes flicker {
  0%, 100% { opacity: 1; }
  50%       { opacity: .2; }
}

/* Skills section — row highlight on hover */
.skill-item:hover .skill-name {
  color: var(--porto-gold);
}

/* Publication year — bold diagonal slash accent */
.pub-card:hover .pub-year {
  color: rgba(238,53,36,.4);
  transition: color .3s;
}
 */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }
  #hero { grid-template-columns: 1fr; min-height: auto; padding-bottom: 0; }
  .hero-accent { display: none; }
  .hero-content { padding: 60px 24px 40px; max-width: 100%; }
  .hero-image-col { justify-content: flex-start; padding: 0 24px 60px; }
  .hero-photo-frame { max-width: 300px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; gap: 60px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .exp-layout { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: var(--nav-h); left: 0; right: 0; background: var(--near-black); padding: 20px 24px; gap: 0; border-top: 1px solid rgba(255,255,255,.1); }
  .nav-links.open { display: flex; }
  .nav-links li { border-bottom: 1px solid rgba(255,255,255,.06); }
  .nav-links a { display: block; padding: 14px 0; }
  .hamburger { display: flex; }
  .section { padding: 70px 0; }
  .section-header { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .hero-stats .stat-num { font-size: 32px; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .interests-grid { grid-template-columns: 1fr; }
  .pub-card { grid-template-columns: 1fr; gap: 12px; }
  .pub-year { font-size: 32px; }
  .portfolio-grid { grid-template-columns: 1fr; }
}
/* ── RESPONSIVE ──