@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap");

:root {
  --bg: #0a0d14;
  --card: #121826;
  --muted: #8b93a7;
  --text: #f2f5ff;
  --accent: #6d5efc;
  --accent-light: rgba(109, 94, 252, 0.2);
  --border: rgba(255, 255, 255, 0.1);
}

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

body {
  font-family: "Inter", sans-serif;
  background: #0a0d14;
  color: var(--text);
  line-height: 1.6;
}

.video-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
}

.video-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.1) contrast(1.05);
}

.video-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(10, 13, 20, 0.4), rgba(10, 13, 20, 0.85));
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(10, 13, 20, 0.8);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 1px;
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--muted);
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 4px 0;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  align-items: center;
  padding: 4rem 0 2rem;
}

.eyebrow {
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--muted);
  letter-spacing: 2px;
}

h1 {
  font-size: clamp(2.5rem, 4vw, 3.8rem);
  margin-top: 0.5rem;
}

.subtitle {
  font-size: 1.2rem;
  margin-top: 0.5rem;
  color: var(--accent);
}

.lead {
  margin: 1rem 0 1.5rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  padding: 0.75rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.btn.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 30px rgba(109, 94, 252, 0.3);
}

.btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn.resume-view {
  background: #f4f5f7;
  color: #12141c;
  border: 1px solid #d5d7dc;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.18);
}

.btn.resume-view .btn-arrow {
  font-size: 1rem;
  margin-left: 0.2rem;
}

.btn.resume-download {
  background: #0e1016;
  color: #f5f5f7;
  border: 1px solid #2b2f3b;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
}

.btn.resume-view:hover,
.btn.resume-download:hover {
  transform: translateY(-2px) scale(1.01);
}

.socials {
  margin-top: 2rem;
  display: flex;
  gap: 1rem;
  color: var(--muted);
}

.hero-card {
  display: flex;
  justify-content: center;
}

.flip-card {
  width: min(330px, 100%);
  perspective: 1000px;
}

.flip-inner {
  position: relative;
  width: 100%;
  min-height: 360px;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

.flip-card:hover .flip-inner,
.flip-card.is-flipped .flip-inner {
  transform: rotateY(180deg);
}

.flip-front,
.flip-back {
  position: absolute;
  inset: 0;
  background: var(--card);
  border-radius: 20px;
  padding: 2rem;
  border: 1px solid var(--border);
  backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.flip-back {
  transform: rotateY(180deg);
}

.card-title {
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 2px;
}

.avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #34d399);
  background-image: url("image/JOHN_PIC.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.card-role {
  color: var(--muted);
}

.card-hint {
  font-size: 0.8rem;
  color: var(--muted);
}

.info-block {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.info-block .label {
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section {
  padding: 3rem 0;
}

.section-header {
  margin-bottom: 2rem;
}

.section-header h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--muted);
}

.grid.two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 1.5rem;
  border-radius: 16px;
}

.timeline {
  display: grid;
  gap: 1.5rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 1rem;
}

.timeline-marker {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 0.5rem;
  box-shadow: 0 0 0 6px var(--accent-light);
}

.timeline-content {
  background: var(--card);
  border-radius: 16px;
  border: 1px solid var(--border);
  padding: 1.5rem;
}

.meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0.5rem 0 1rem;
}

.bullet-list {
  margin-left: 1.2rem;
  color: var(--muted);
  display: grid;
  gap: 0.4rem;
  list-style: disc;
}

.list {
  list-style: none;
  display: grid;
  gap: 1rem;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.chips span {
  background: rgba(255, 255, 255, 0.05);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.9rem;
}

.contact {
  padding-bottom: 4rem;
}

.contact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.contact-title {
  color: var(--muted);
  font-size: 0.9rem;
}

.contact-email {
  font-size: 1.3rem;
  font-weight: 600;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--muted);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: 64px;
    right: 24px;
    flex-direction: column;
    background: var(--card);
    border: 1px solid var(--border);
    padding: 1rem;
    border-radius: 12px;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }
}