/* ============================================================
   SITE PROF. DR. LEONARDO PRATES LEAL
   Design: Editorial Acadêmico Refinado
   Paleta: Azul-marinho profundo + Creme + Terracota accent
   ============================================================ */

:root {
  --navy:     #1a3a5c;
  --navy-dk:  #102640;
  --navy-lt:  #2a5080;
  --cream:    #f5f0e8;
  --cream-dk: #ebe4d6;
  --warm-wt:  #faf8f4;
  --terra:    #b5451b;
  --terra-lt: #d4623a;
  --gold:     #c9a84c;
  --text:     #2c2c2c;
  --text-md:  #555;
  --text-lt:  #888;
  --border:   #ddd5c5;
  --shadow:   0 2px 20px rgba(26,58,92,.08);
  --shadow-lg:0 8px 48px rgba(26,58,92,.15);
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-body:  'Source Serif 4', Georgia, serif;
  --font-mono:  'JetBrains Mono', monospace;
  --radius: 3px;
  --transition: .25s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--warm-wt);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--cream-dk); }
::-webkit-scrollbar-thumb { background: var(--navy); border-radius: 3px; }

/* ── HEADER ── */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--navy);
  box-shadow: 0 2px 20px rgba(0,0,0,.3);
}

.header-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 0 32px;
  height: 72px;
  display: flex; align-items: center; gap: 48px;
}

.header-brand { flex-shrink: 0; }

.brand-link {
  display: flex; align-items: center; gap: 14px;
  text-decoration: none; color: white;
}

.brand-initial {
  width: 44px; height: 44px;
  background: var(--terra);
  color: white;
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  border-radius: 2px;
  flex-shrink: 0;
  letter-spacing: -1px;
}
.brand-initial.small { width: 36px; height: 36px; font-size: 1.1rem; }

.brand-text { display: flex; flex-direction: column; gap: 1px; }
.brand-name { font-family: var(--font-serif); font-size: 1rem; font-weight: 600; line-height: 1.2; }
.brand-role { font-size: 0.7rem; color: rgba(255,255,255,.6); letter-spacing: .5px; text-transform: uppercase; }

.main-nav {
  display: flex; gap: 4px; margin-left: auto;
}

.nav-link {
  color: rgba(255,255,255,.8);
  text-decoration: none;
  font-size: 0.88rem;
  padding: 8px 14px;
  border-radius: var(--radius);
  transition: var(--transition);
  font-family: var(--font-serif);
  letter-spacing: .3px;
}
.nav-link:hover, .nav-link.active {
  color: white;
  background: rgba(255,255,255,.12);
}
.nav-link.active { color: var(--gold); }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 8px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: rgba(255,255,255,.8);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── HERO ── */
.hero {
  background: var(--navy);
  color: white;
  padding: 96px 32px 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 80% 50%, rgba(181,69,27,.15) 0%, transparent 60%),
    radial-gradient(ellipse at 10% 80%, rgba(201,168,76,.08) 0%, transparent 50%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  right: -100px; top: -100px;
  width: 500px; height: 500px;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='100' cy='100' r='80' fill='none' stroke='rgba(255,255,255,.04)' stroke-width='60'/%3E%3C/svg%3E") no-repeat center;
  background-size: contain;
  pointer-events: none;
}

.hero-inner {
  max-width: 1200px; margin: 0 auto;
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 380px; gap: 80px; align-items: center;
}

.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.72rem; letter-spacing: 2px; text-transform: uppercase;
  color: var(--gold); margin-bottom: 20px;
  font-family: var(--font-mono);
}
.hero-tag::before {
  content: '';
  display: block; width: 24px; height: 1px; background: var(--gold);
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 12px;
  letter-spacing: -.5px;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,.7);
  margin-bottom: 32px;
  line-height: 1.6;
  font-weight: 300;
}

.hero-tags {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px;
}
.hero-tag-item {
  padding: 5px 14px;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 100px;
  font-size: 0.8rem;
  color: rgba(255,255,255,.75);
  transition: var(--transition);
}
.hero-tag-item:hover {
  border-color: var(--gold); color: var(--gold);
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  text-decoration: none;
  border-radius: var(--radius);
  transition: var(--transition);
  border: 2px solid transparent;
  cursor: pointer;
  font-weight: 600;
  letter-spacing: .3px;
}
.btn-primary {
  background: var(--terra); color: white;
  border-color: var(--terra);
}
.btn-primary:hover { background: var(--terra-lt); border-color: var(--terra-lt); }

.btn-outline {
  background: transparent; color: white;
  border-color: rgba(255,255,255,.35);
}
.btn-outline:hover { border-color: white; background: rgba(255,255,255,.08); }

.btn-navy {
  background: var(--navy); color: white;
  border-color: var(--navy);
}
.btn-navy:hover { background: var(--navy-dk); }

.hero-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 6px;
  padding: 32px;
  backdrop-filter: blur(4px);
}

.hero-photo-placeholder {
  width: 120px; height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--terra) 0%, var(--navy-lt) 100%);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-size: 3rem; color: white;
  margin: 0 auto 20px;
  border: 3px solid rgba(255,255,255,.15);
}

.hero-card-name {
  text-align: center;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.hero-card-role { text-align: center; font-size: .8rem; color: rgba(255,255,255,.6); margin-bottom: 20px; }

.hero-card-links { display: flex; flex-direction: column; gap: 8px; }

.hero-card-link {
  display: flex; align-items: center; gap: 10px;
  color: rgba(255,255,255,.75);
  text-decoration: none;
  font-size: .85rem;
  padding: 8px 12px;
  border-radius: 3px;
  transition: var(--transition);
  border: 1px solid rgba(255,255,255,.08);
}
.hero-card-link:hover { color: var(--gold); border-color: rgba(201,168,76,.4); background: rgba(201,168,76,.06); }
.hero-card-link svg { flex-shrink: 0; opacity: .7; }

/* ── SECTIONS ── */
.section { padding: 80px 32px; }
.section-alt { background: var(--cream); }
.section-dark { background: var(--navy); color: white; }

.section-inner { max-width: 1200px; margin: 0 auto; }

.section-header { margin-bottom: 56px; }

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--terra);
  margin-bottom: 10px;
  display: flex; align-items: center; gap: 10px;
}
.section-eyebrow::after {
  content: '';
  flex: 1; max-width: 48px; height: 1px;
  background: var(--terra); opacity: .4;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
  letter-spacing: -.3px;
}
.section-dark .section-title { color: white; }
.section-dark .section-eyebrow { color: var(--gold); }
.section-dark .section-eyebrow::after { background: var(--gold); }

.section-desc {
  color: var(--text-md);
  margin-top: 12px;
  max-width: 600px;
  font-size: 1.05rem;
}
.section-dark .section-desc { color: rgba(255,255,255,.7); }

/* ── CARDS ── */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 28px; }
.cards-grid-2 { grid-template-columns: repeat(auto-fill, minmax(480px, 1fr)); }

.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  transition: var(--transition);
  display: flex; flex-direction: column;
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }

.card-img {
  height: 200px; overflow: hidden;
  background: var(--cream-dk);
}
.card-img img { width: 100%; height: 100%; object-fit: cover; }
.card-img-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; opacity: .3;
}

.card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.card-category {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--terra);
  margin-bottom: 10px;
}
.card-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.35;
  margin-bottom: 10px;
  text-decoration: none;
  display: block;
}
.card-title:hover { color: var(--terra); }
.card-excerpt { color: var(--text-md); font-size: .9rem; line-height: 1.7; flex: 1; }
.card-meta {
  display: flex; align-items: center; gap: 12px;
  margin-top: 20px; padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: .8rem; color: var(--text-lt);
  font-family: var(--font-mono);
}
.card-meta a { color: var(--navy); text-decoration: none; font-weight: 500; }
.card-meta a:hover { color: var(--terra); }

/* ── PUBLICATION LIST ── */
.pub-list { display: flex; flex-direction: column; gap: 2px; }

.pub-item {
  padding: 24px 28px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: white;
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: 20px;
  align-items: start;
  transition: var(--transition);
}
.pub-item:hover { border-color: var(--navy); box-shadow: var(--shadow); }

.pub-year {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  color: var(--terra);
  padding-top: 2px;
}

.pub-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 4px;
  line-height: 1.4;
}
.pub-authors { font-size: .85rem; color: var(--text-md); }
.pub-venue {
  font-size: .82rem; color: var(--text-lt);
  font-style: italic; margin-top: 4px;
}

.pub-type {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
  white-space: nowrap;
  align-self: start;
}
.pub-type.artigo   { background: #e8f0fb; color: #1a5eb8; }
.pub-type.livro    { background: #fef3e8; color: #b45309; }
.pub-type.tese,
.pub-type.dissertacao { background: #f0fdf4; color: #15803d; }
.pub-type.working_paper { background: #fef2f2; color: #b91c1c; }
.pub-type.capitulo { background: #faf5ff; color: #7c3aed; }

/* ── RESEARCH CARDS ── */
.research-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 32px;
  display: flex; flex-direction: column; gap: 16px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.research-card::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--terra);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform .3s ease;
}
.research-card:hover::before { transform: scaleY(1); }
.research-card:hover { box-shadow: var(--shadow-lg); }

.research-status {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.7rem; letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 100px;
  width: fit-content;
}
.status-em_andamento { background: #f0fdf4; color: #15803d; }
.status-concluido    { background: #eff6ff; color: #1d4ed8; }
.status-planejado    { background: #fff7ed; color: #c2410c; }
.status-em_andamento::before,
.status-concluido::before,
.status-planejado::before {
  content: '●'; font-size: .6rem;
}

.research-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.35;
}

.research-desc { color: var(--text-md); font-size: .95rem; line-height: 1.7; }

.research-footer {
  display: flex; gap: 12px; flex-wrap: wrap;
  padding-top: 12px; border-top: 1px solid var(--border);
  font-size: .82rem; color: var(--text-lt);
  font-family: var(--font-mono);
}

/* ── DISCIPLINE LIST ── */
.discipline-item {
  display: grid; grid-template-columns: auto 1fr auto;
  gap: 20px; align-items: center;
  padding: 20px 28px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: white;
  margin-bottom: 2px;
  transition: var(--transition);
}
.discipline-item:hover { border-color: var(--navy); }
.discipline-code {
  font-family: var(--font-mono);
  font-size: .8rem; color: var(--terra);
  font-weight: 500;
}
.discipline-name {
  font-family: var(--font-serif); font-size: 1.05rem;
  font-weight: 600; color: var(--navy);
}
.discipline-desc { font-size: .85rem; color: var(--text-md); margin-top: 3px; }
.discipline-meta { font-family: var(--font-mono); font-size: .8rem; color: var(--text-lt); white-space: nowrap; }

/* ── ABOUT ── */
.about-grid {
  display: grid; grid-template-columns: 1fr 400px; gap: 80px; align-items: start;
}
.about-lead {
  font-family: var(--font-serif);
  font-size: 1.3rem; font-style: italic;
  color: var(--navy); line-height: 1.6;
  margin-bottom: 28px;
  padding-left: 24px;
  border-left: 3px solid var(--terra);
}
.about-text { color: var(--text-md); line-height: 1.85; margin-bottom: 20px; }

.about-awards {
  margin-top: 32px;
}
.award-item {
  display: flex; gap: 16px; align-items: start;
  padding: 16px 0;
  border-top: 1px solid var(--border);
}
.award-icon { font-size: 1.5rem; flex-shrink: 0; }
.award-text strong { display: block; color: var(--navy); font-size: .95rem; }
.award-text span { font-size: .85rem; color: var(--text-lt); }

.profile-card {
  background: var(--navy);
  color: white;
  border-radius: 6px;
  padding: 36px;
  position: sticky; top: 96px;
}

.profile-photo {
  width: 100px; height: 100px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--terra), var(--navy-lt));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-size: 2.5rem; color: white;
  margin-bottom: 20px;
  border: 3px solid rgba(255,255,255,.15);
}

.profile-card h3 {
  font-family: var(--font-serif); font-size: 1.25rem;
  margin-bottom: 4px;
}
.profile-card .role { font-size: .85rem; color: rgba(255,255,255,.65); margin-bottom: 24px; }

.profile-links { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.profile-link {
  display: flex; align-items: center; gap: 10px;
  color: rgba(255,255,255,.75);
  text-decoration: none;
  font-size: .85rem;
  padding: 10px 14px;
  border-radius: 3px;
  border: 1px solid rgba(255,255,255,.1);
  transition: var(--transition);
}
.profile-link:hover { color: var(--gold); border-color: rgba(201,168,76,.4); }

.profile-interests h4 {
  font-size: .75rem; letter-spacing: 1.5px; text-transform: uppercase;
  color: rgba(255,255,255,.5); margin-bottom: 12px; font-family: var(--font-mono);
}
.interests-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.interest-tag {
  font-size: .75rem; padding: 4px 10px;
  background: rgba(255,255,255,.08);
  border-radius: 100px;
  color: rgba(255,255,255,.75);
  border: 1px solid rgba(255,255,255,.1);
  transition: var(--transition);
}
.interest-tag:hover { background: rgba(201,168,76,.15); color: var(--gold); }

/* ── STATS ── */
.stats-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px;
  margin-bottom: 2px;
}
.stat-box {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}
.stat-box:hover { background: rgba(255,255,255,.1); }
.stat-number {
  font-family: var(--font-serif);
  font-size: 2.5rem; font-weight: 700;
  color: var(--gold); line-height: 1;
  margin-bottom: 8px;
}
.stat-label { font-size: .8rem; color: rgba(255,255,255,.6); letter-spacing: .5px; }

/* ── BLOG ── */
.post-header { padding: 64px 32px 48px; background: var(--navy); color: white; }
.post-header-inner { max-width: 800px; margin: 0 auto; }
.post-body { max-width: 800px; margin: 0 auto; padding: 56px 32px; }

.post-content { line-height: 1.9; color: var(--text); }
.post-content h2, .post-content h3 {
  font-family: var(--font-serif);
  color: var(--navy); margin: 40px 0 16px;
}
.post-content p { margin-bottom: 20px; }
.post-content a { color: var(--terra); }
.post-content blockquote {
  border-left: 3px solid var(--terra);
  padding: 16px 24px;
  background: var(--cream);
  margin: 32px 0;
  font-style: italic;
  color: var(--navy);
}

/* ── CONTACT ── */
.contact-grid { display: grid; grid-template-columns: 1fr 400px; gap: 64px; }
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: .85rem; font-weight: 600; color: var(--navy); letter-spacing: .3px; }
.form-input, .form-textarea {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--text);
  background: white;
  transition: border-color var(--transition);
  outline: none;
}
.form-input:focus, .form-textarea:focus { border-color: var(--navy); }
.form-textarea { resize: vertical; min-height: 140px; }
.contact-info-card {
  background: var(--cream); border-radius: 4px; padding: 32px;
}
.contact-info-item {
  display: flex; gap: 14px; align-items: start;
  padding: 14px 0; border-bottom: 1px solid var(--border);
}
.contact-info-item:last-child { border: none; }
.contact-info-icon { font-size: 1.2rem; flex-shrink: 0; }
.contact-info-label { font-size: .75rem; color: var(--text-lt); text-transform: uppercase; letter-spacing: 1px; font-family: var(--font-mono); }
.contact-info-value { font-size: .95rem; color: var(--text); }
.contact-info-value a { color: var(--navy); text-decoration: none; }
.contact-info-value a:hover { color: var(--terra); }

/* ── BREADCRUMB ── */
.breadcrumb {
  padding: 12px 32px;
  background: var(--cream-dk);
  border-bottom: 1px solid var(--border);
  font-size: .82rem; color: var(--text-lt);
}
.breadcrumb a { color: var(--navy); text-decoration: none; }
.breadcrumb a:hover { color: var(--terra); }
.breadcrumb span { margin: 0 8px; opacity: .5; }

/* ── PAGINATION ── */
.pagination {
  display: flex; gap: 6px; justify-content: center;
  margin-top: 56px;
}
.page-btn {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: 3px;
  text-decoration: none; color: var(--text-md);
  font-family: var(--font-mono); font-size: .9rem;
  transition: var(--transition);
}
.page-btn:hover, .page-btn.active {
  background: var(--navy); color: white; border-color: var(--navy);
}

/* ── FOOTER ── */
.site-footer {
  background: var(--navy-dk);
  color: white;
  padding: 64px 32px 32px;
}
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px;
  padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,.1);
  margin-bottom: 28px;
}

.footer-brand { display: flex; gap: 14px; align-items: start; }
.footer-brand strong { display: block; font-family: var(--font-serif); font-size: 1rem; margin-bottom: 6px; }
.footer-brand p { font-size: .85rem; color: rgba(255,255,255,.55); line-height: 1.7; }

.footer-col h4 {
  font-family: var(--font-mono); font-size: .7rem;
  letter-spacing: 2px; text-transform: uppercase;
  color: var(--gold); margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col a {
  color: rgba(255,255,255,.65); text-decoration: none;
  font-size: .9rem; transition: color var(--transition);
}
.footer-col a:hover { color: white; }
.footer-col p { font-size: .85rem; color: rgba(255,255,255,.65); }
.footer-col p a { color: var(--gold); }

.footer-bottom {
  display: flex; justify-content: space-between;
  font-size: .8rem; color: rgba(255,255,255,.35);
  font-family: var(--font-mono);
}

/* ── UTILITIES ── */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-32 { margin-bottom: 32px; }
.view-all {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--navy); text-decoration: none;
  font-family: var(--font-mono); font-size: .82rem;
  letter-spacing: 1px; text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  transition: var(--transition);
}
.view-all:hover { color: var(--terra); border-color: var(--terra); }

.tag-pill {
  display: inline-flex;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: .75rem;
  background: var(--cream-dk);
  color: var(--text-md);
  border: 1px solid var(--border);
  text-decoration: none;
  transition: var(--transition);
}
.tag-pill:hover { background: var(--navy); color: white; border-color: var(--navy); }

.alert {
  padding: 14px 20px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: .9rem;
}
.alert-success { background: #f0fdf4; border: 1px solid #a7f3d0; color: #065f46; }
.alert-error   { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }
.alert-info    { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af; }

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp .6s ease forwards; }
.fade-up-1 { animation-delay: .1s; opacity: 0; }
.fade-up-2 { animation-delay: .2s; opacity: 0; }
.fade-up-3 { animation-delay: .3s; opacity: 0; }
.fade-up-4 { animation-delay: .4s; opacity: 0; }

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-card { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .profile-card { position: static; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: var(--navy-dk);
    flex-direction: column;
    padding: 16px 24px;
    transform: translateY(-110%);
    transition: transform .3s ease;
    z-index: 999;
    box-shadow: 0 8px 32px rgba(0,0,0,.3);
  }
  .main-nav.open { transform: translateY(0); }
  .nav-toggle { display: flex; }
  .section { padding: 56px 20px; }
  .hero { padding: 64px 20px; }
  .cards-grid { grid-template-columns: 1fr; }
  .pub-item { grid-template-columns: 1fr; gap: 8px; }
  .pub-year { font-size: .9rem; }
  .discipline-item { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .header-inner { padding: 0 20px; gap: 24px; }
}

@media (max-width: 480px) {
  .stats-row { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 2rem; }
}