/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg: #fafaf9;
  --color-bg-alt: #f5f3f0;
  --color-text: #1c1917;
  --color-text-secondary: #57534e;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-border: #e7e5e4;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --max-width: 860px;
  --nav-height: 64px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: var(--color-accent-hover); text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  background: rgba(250, 250, 249, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.nav.scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(250, 250, 249, 0.95);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.2s, background 0.2s;
}
.nav-logo:hover {
  color: var(--color-accent);
  background: var(--color-bg-alt);
  text-decoration: none;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
}
.nav-links a {
  color: var(--color-text-secondary);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--color-text); text-decoration: none; }

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Hero ---- */
.hero {
  padding: 80px 0 24px;
  display: flex;
  align-items: center;
}
.hero-content {
  display: flex;
  align-items: center;
  gap: 60px;
}
.hero-text { flex: 1; }
.hero h1 {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.hero-intro {
  font-size: 19px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}
.hero-links {
  display: flex;
  gap: 16px;
}
.hero-links a {
  color: var(--color-text-secondary);
  transition: color 0.2s, transform 0.2s;
}
.hero-links a:hover { color: var(--color-accent); transform: translateY(-2px); }
.hero-links svg { width: 26px; height: 26px; }

.hero-image img {
  width: 280px;
  height: 280px;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}

/* ---- Sections ---- */
.section {
  padding: 48px 0;
}
.section-alt {
  background: var(--color-bg-alt);
}
.section h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-border);
}
.section h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin: 32px 0 16px;
}
.section h3:first-of-type { margin-top: 0; }

/* ---- About ---- */
.about-content p {
  margin-bottom: 16px;
  color: var(--color-text-secondary);
}
.about-content p:last-child { margin-bottom: 0; }

/* ---- Writing ---- */
.writing-intro {
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  font-size: 15px;
}
.writing-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.writing-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 20px;
  background: #fff;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  transition: box-shadow 0.2s;
}
.writing-list li:hover {
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.writing-date {
  flex-shrink: 0;
  width: 64px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  padding-top: 2px;
}
.writing-body {
  flex: 1;
  min-width: 0;
}
a.writing-title {
  display: block;
  font-weight: 500;
  font-size: 17px;
  color: var(--color-text);
  text-decoration: none;
  line-height: 1.4;
  transition: color 0.2s;
}
a.writing-title:hover { color: var(--color-accent); }
.writing-desc {
  display: block;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: 4px;
  line-height: 1.5;
}
.writing-source {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-top: 6px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  padding: 1px 8px;
  border-radius: 4px;
}

/* ---- Publications ---- */
.pub-intro {
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  font-size: 15px;
}
.section-icon {
  width: 20px;
  height: 20px;
  vertical-align: -3px;
  margin-right: 6px;
  color: var(--color-accent);
}
.pub-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pub-list li {
  padding: 14px 16px;
  background: var(--color-bg);
  border-radius: 8px;
  border: 1px solid var(--color-border);
  transition: box-shadow 0.2s;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.section-alt .pub-list li {
  background: #fff;
}
.pub-list li:hover {
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.pub-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-top: 2px;
}
.pub-icon svg {
  width: 18px;
  height: 18px;
}
.pub-body {
  flex: 1;
  min-width: 0;
}
.pub-title {
  display: block;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 4px;
  line-height: 1.4;
}
.pub-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-secondary);
}
.pub-venue {
  font-style: italic;
}
.pub-year::before {
  content: "\00b7";
  margin-right: 6px;
}
.service-text {
  color: var(--color-text-secondary);
}

/* ---- Awards ---- */
.awards-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.awards-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--color-bg);
  border-radius: 8px;
  border: 1px solid var(--color-border);
  transition: box-shadow 0.2s;
}
.awards-list li:hover {
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.award-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.award-icon svg {
  width: 20px;
  height: 20px;
}
/* Color variants */
.award-gold .award-icon {
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  border: 1px solid #f59e0b44;
  color: #b45309;
}
.award-gold { border-left: 3px solid #f59e0b; }
.award-blue .award-icon {
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
  border: 1px solid #3b82f644;
  color: #1d4ed8;
}
.award-blue { border-left: 3px solid #3b82f6; }
.award-red .award-icon {
  background: linear-gradient(135deg, #fee2e2, #fecaca);
  border: 1px solid #ef444444;
  color: #dc2626;
}
.award-red { border-left: 3px solid #ef4444; }
.award-green .award-icon {
  background: linear-gradient(135deg, #dcfce7, #bbf7d0);
  border: 1px solid #22c55e44;
  color: #16a34a;
}
.award-green { border-left: 3px solid #22c55e; }

.award-body {
  flex: 1;
}
a.award-title {
  display: block;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
  text-decoration: none;
  transition: color 0.2s;
}
a.award-title:hover { color: var(--color-accent); }
span.award-title {
  display: block;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
}
.award-year {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ---- Media ---- */
.media-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 8px;
}
.media-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 12px 16px;
  background: #fff;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  transition: box-shadow 0.2s;
}
.media-list li:hover {
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.media-date {
  flex-shrink: 0;
  width: 40px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  padding-top: 2px;
  text-align: center;
}
.media-body {
  flex: 1;
  min-width: 0;
}
a.media-title {
  display: block;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  line-height: 1.4;
  transition: color 0.2s;
}
a.media-title:hover { color: var(--color-accent); text-decoration: underline; }
span.media-title {
  display: block;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
}
.media-source {
  display: block;
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}
.media-source a {
  font-size: 13px;
}
.media-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 1px 7px;
  border-radius: 4px;
  vertical-align: middle;
  margin-left: 4px;
}
.media-badge.video {
  background: #fee2e2;
  color: #dc2626;
  border: 1px solid #dc262633;
}
.media-badge.press {
  background: #f0fdf4;
  color: #16a34a;
  border: 1px solid #16a34a33;
}
.media-badge.talk {
  background: #eff6ff;
  color: #2563eb;
  border: 1px solid #2563eb33;
}
.media-badge.pod {
  background: #faf5ff;
  color: #9333ea;
  border: 1px solid #9333ea33;
}
.flag-it {
  display: inline-block;
  width: 18px;
  height: 12px;
  border-radius: 2px;
  background: linear-gradient(to right, #009246 33.3%, #fff 33.3%, #fff 66.6%, #ce2b37 66.6%);
  vertical-align: middle;
  position: relative;
  top: -1px;
  border: 1px solid rgba(0,0,0,0.1);
}

/* ---- Contact ---- */
.contact-content p {
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}
.contact-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.contact-links a {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-weight: 500;
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color 0.2s, box-shadow 0.2s, color 0.2s;
}
.contact-links a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
  text-decoration: none;
}

/* ---- Contact Form ---- */
.contact-form {
  margin-top: 32px;
  max-width: 560px;
}
.form-row {
  display: flex;
  gap: 16px;
}
.form-group {
  flex: 1;
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: border-color 0.2s, box-shadow 0.2s;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}
.form-submit {
  display: inline-flex;
  align-items: center;
  padding: 10px 28px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  color: #fff;
  background: var(--color-accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
}
.form-submit:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
}

@media (max-width: 480px) {
  .form-row { flex-direction: column; gap: 0; }
}

/* ---- Footer ---- */
.footer {
  padding: 32px 0;
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 14px;
  border-top: 1px solid var(--color-border);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .hero { padding: 90px 0 32px; }
  .hero-content {
    flex-direction: column-reverse;
    text-align: center;
    gap: 32px;
  }
  .hero h1 { font-size: 36px; }
  .hero-subtitle { font-size: 18px; }
  .hero-links { justify-content: center; }
  .hero-image img { width: 200px; height: 200px; border-radius: 12px; }

  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(250, 250, 249, 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: 8px 0;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a {
    display: block;
    padding: 12px 24px;
    font-size: 16px;
  }

  .section { padding: 40px 0; }
  .section h2 { font-size: 28px; }

  .pub-list li { padding: 14px 16px; }

  .contact-links { flex-direction: column; }
  .contact-links a { justify-content: center; }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  .hero h1 { font-size: 30px; }
  .container { padding: 0 16px; }
}