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

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f8f8f6;
  --color-text: #181818;
  --color-text-muted: #636363;
  --color-text-subtle: #999;
  --color-border: #e6e6e2;
  --color-accent: #2563eb;

  --tag-concept-bg: #eef2ff;
  --tag-concept-text: #3730a3;
  --tag-research-bg: #f0fdf4;
  --tag-research-text: #166534;
  --tag-production-bg: #fff7ed;
  --tag-production-text: #9a3412;
  --tag-marketing-bg: #fdf4ff;
  --tag-marketing-text: #86198f;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1100px;
  --nav-height: 64px;
  --radius: 10px;
  --transition: 0.2s ease;
}

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

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

/* =============================================
   LAYOUT
   ============================================= */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

.section { padding: 96px 0; }
.section-alt { background: var(--color-bg-alt); }

/* =============================================
   TYPOGRAPHY
   ============================================= */
.section-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 14px;
}

.section-intro {
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 540px;
  margin-bottom: 52px;
  line-height: 1.75;
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary { background: var(--color-text); color: #fff; }
.btn-primary:hover { background: #333; transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn-ghost:hover { border-color: #aaa; transform: translateY(-1px); }

/* =============================================
   NAV
   ============================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}
.nav.scrolled { border-bottom-color: var(--color-border); }

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  font-size: 14px;
  color: var(--color-text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0; right: 0;
  height: 1px;
  background: var(--color-text);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}

.nav-links a:hover,
.nav-links a.active { color: var(--color-text); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text);
  transition: all var(--transition);
}

/* =============================================
   HERO
   ============================================= */
.hero {
  padding: calc(var(--nav-height) + 96px) 0 80px;
  min-height: 92svh;
  display: flex;
  align-items: center;
}

.hero-eyebrow {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin-bottom: 20px;
}

.hero-name {
  font-size: clamp(52px, 9vw, 96px);
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 1.0;
  margin-bottom: 24px;
}

.hero-tagline {
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 400;
  font-style: italic;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  line-height: 1.4;
}

.hero-sub {
  font-size: 15px;
  color: var(--color-text-muted);
  max-width: 500px;
  margin-bottom: 44px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* =============================================
   STATS STRIP
   ============================================= */
.stats-strip {
  background: var(--color-text);
  padding: 28px 0;
}

.stats-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 48px;
  text-align: center;
}

.stat-num {
  font-size: 28px;
  font-weight: 300;
  letter-spacing: -0.02em;
  color: #fff;
  line-height: 1.1;
}

.stat-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.15);
}

/* =============================================
   ABOUT
   ============================================= */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 80px;
  align-items: start;
}

.about-text h2 {
  font-size: clamp(22px, 2.8vw, 28px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.35;
  margin-bottom: 24px;
}

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: 18px;
  font-size: 15.5px;
  line-height: 1.8;
}
.about-text p:last-child { margin-bottom: 0; }

.about-photo-wrap {
  margin-bottom: 20px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  position: relative;
}

.about-photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: transform 0.4s ease;
}

.about-photo-wrap:hover .about-photo {
  transform: scale(1.02);
}

.about-photo-caption {
  font-size: 11px;
  color: var(--color-text-subtle);
  text-align: center;
  padding: 8px 0 6px;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  letter-spacing: 0.04em;
}

.about-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 14px;
}
.about-card:last-child { margin-bottom: 0; }

.about-card h3 {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin-bottom: 14px;
}

.about-card ul li {
  font-size: 13.5px;
  color: var(--color-text-muted);
  padding: 6px 0;
  border-bottom: 1px solid var(--color-border);
  line-height: 1.5;
}
.about-card ul li:last-child { border-bottom: none; }

/* =============================================
   PROJECTS
   ============================================= */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.project-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 30px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.project-card:hover {
  border-color: #ccc;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}

/* Featured spans full width */
.project-featured {
  grid-column: 1 / -1;
  background: #fafaf8;
  border-color: #d8d8d2;
}

.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.project-year {
  font-size: 12px;
  color: var(--color-text-subtle);
}

/* Tags */
.project-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
}

.tag-concept   { background: var(--tag-concept-bg);    color: var(--tag-concept-text); }
.tag-research  { background: var(--tag-research-bg);   color: var(--tag-research-text); }
.tag-production{ background: var(--tag-production-bg); color: var(--tag-production-text); }
.tag-marketing { background: var(--tag-marketing-bg);  color: var(--tag-marketing-text); }

.project-card h3 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.35;
  margin-bottom: 4px;
}

.project-org {
  font-size: 12.5px;
  color: var(--color-text-subtle);
  margin-bottom: 12px;
}

.project-card > p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 16px;
}

.project-card > p:last-of-type { margin-bottom: 20px; }

.project-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.project-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.project-links .project-link {
  margin-top: 0;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1px;
  transition: border-color var(--transition), color var(--transition);
}

.project-link:hover {
  border-color: var(--color-text);
}

.project-skills span {
  font-size: 12px;
  color: var(--color-text-muted);
  background: #f2f2ef;
  border: 1px solid var(--color-border);
  padding: 3px 10px;
  border-radius: 100px;
}

/* =============================================
   YOUTUBE SECTION
   ============================================= */
.yt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  margin-top: 8px;
}

.yt-text p {
  font-size: 15.5px;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 18px;
}

.yt-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 28px;
}

.yt-stat {
  display: flex;
  flex-direction: column;
}

.yt-stat-num {
  font-size: 28px;
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 1.1;
}

.yt-stat-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin-top: 4px;
}

.yt-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.yt-embed-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.yt-video-context {
  font-size: 13.5px;
  color: var(--color-text-muted);
  line-height: 1.75;
  border-left: 2px solid var(--color-border);
  padding-left: 14px;
}

.yt-embed-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.yt-embed {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

@media (max-width: 900px) {
  .yt-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* =============================================
   TIMELINE
   ============================================= */
.timeline {
  position: relative;
  margin-bottom: 64px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 132px;
  top: 0; bottom: 0;
  width: 1px;
  background: var(--color-border);
}

.timeline-item {
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: 0 52px;
  padding-bottom: 44px;
  position: relative;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-item::after {
  content: '';
  position: absolute;
  left: 128px;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1.5px solid #aaa;
}

.timeline-left {
  text-align: right;
  padding-top: 3px;
}

.timeline-date {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-subtle);
  line-height: 1.5;
}

.timeline-right h3 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  background: #fef9c3;
  color: #854d0e;
  border: 1px solid #fde68a;
  padding: 2px 8px;
  border-radius: 4px;
}

.timeline-company {
  font-size: 13px;
  color: var(--color-text-subtle);
  margin-bottom: 10px;
}

.timeline-right > p:last-child {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.75;
}

/* =============================================
   CERTIFICATIONS
   ============================================= */
.certs-section {
  border-top: 1px solid var(--color-border);
  padding-top: 44px;
  margin-bottom: 56px;
}

.certs-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin-bottom: 24px;
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.cert-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.cert-item:hover { border-color: #bbb; }

.cert-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: #f2f2ef;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
}

.cert-item strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 2px;
  line-height: 1.4;
}

.cert-item p {
  font-size: 12px;
  color: var(--color-text-subtle);
}

/* =============================================
   SKILLS
   ============================================= */
.skills-section {
  border-top: 1px solid var(--color-border);
  padding-top: 44px;
}

.skills-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin-bottom: 28px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.skill-group h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 14px;
}

.skill-group ul li {
  font-size: 13.5px;
  color: var(--color-text-muted);
  padding: 5px 0;
  border-bottom: 1px solid var(--color-border);
  line-height: 1.5;
}
.skill-group ul li:last-child { border-bottom: none; }

/* =============================================
   CONTACT
   ============================================= */
.contact-container { text-align: center; }
.contact-container .section-intro { margin: 0 auto 44px; }

.contact-links {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  border: 1.5px solid var(--color-border);
  padding: 14px 24px;
  border-radius: 8px;
  transition: all var(--transition);
}
.contact-link:hover {
  color: var(--color-text);
  border-color: var(--color-text);
  transform: translateY(-2px);
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  padding: 28px 0;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.footer-inner span {
  font-size: 13px;
  color: var(--color-text-subtle);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 960px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
  .skills-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
}

@media (max-width: 720px) {
  .projects-grid { grid-template-columns: 1fr; }
  .project-featured { grid-column: auto; }
  .stat { padding: 10px 24px; }
  .stat-divider { display: none; }
  .stats-inner { gap: 4px; justify-content: space-around; }

  .timeline::before { left: 0; }
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 6px;
    padding-left: 20px;
    padding-bottom: 36px;
  }
  .timeline-item::after { left: -4px; }
  .timeline-left { text-align: left; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .section { padding: 72px 0; }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 12px 0 24px;
    border-bottom: 1px solid var(--color-border);
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; text-align: center; }
  .nav-links a { display: block; padding: 13px 0; font-size: 16px; }
  .nav-links a::after { display: none; }
  .nav-toggle { display: flex; }

  .hero { padding-top: calc(var(--nav-height) + 64px); min-height: auto; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .btn { width: 100%; justify-content: center; }
  .hero-br { display: none; }

  .certs-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; gap: 6px; }
}


/* =============================================
   YOUTUBE SECTION
   ============================================= */
.yt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  margin-top: 8px;
}

.yt-text p {
  font-size: 15.5px;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 18px;
}

.yt-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 28px;
}

.yt-stat {
  display: flex;
  flex-direction: column;
}

.yt-stat-num {
  font-size: 28px;
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 1.1;
}

.yt-stat-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin-top: 4px;
}

.yt-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.yt-embed-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.yt-video-context {
  font-size: 13.5px;
  color: var(--color-text-muted);
  line-height: 1.75;
  border-left: 2px solid var(--color-border);
  padding-left: 14px;
}

.yt-embed-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.yt-embed {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

@media (max-width: 900px) {
  .yt-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}