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

:root {
  --orange: #E8650A;
  --orange-light: #FF7A1A;
  --orange-glow: rgba(232, 101, 10, 0.15);
  --black: #1A1A1A;
  --black-light: #2A2A2A;
  --gray: #888;
  --gray-light: #F7F7F7;
  --gray-border: #E0E0E0;
  --white: #FFFFFF;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--white);
  color: var(--black);
  min-height: 100dvh;
  overflow-x: hidden;
}

/* ══════════════════════════════════
   HERO SECTION
══════════════════════════════════ */
.hero {
  min-height: 100dvh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
}

.hero-left {
  background: var(--black);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  padding: 4rem;
  position: relative;
  overflow: hidden;
}

.hero-left::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--orange-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-left-content {
  max-width: 480px;
  width: 100%;
  position: relative;
  z-index: 1;
  opacity: 0;
  animation: slideRight 0.8s ease 0.2s forwards;
}

.hero-left-content h1 {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}

.hero-left-content h1 span {
  color: var(--orange);
}

.hero-left-content .tagline {
  font-size: 0.9rem;
  color: var(--gray);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.hero-left-content .description {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
  max-width: 380px;
}

.hero-right {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 4rem;
  position: relative;
}

.hero-right::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 120px;
  background: var(--orange);
  border-radius: 2px;
}

.hero-right-content {
  max-width: 480px;
  width: 100%;
  opacity: 0;
  animation: slideLeft 0.8s ease 0.4s forwards;
}

/* ── Profile ── */
.profile {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.profile-photo {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--orange);
  flex-shrink: 0;
}

.profile-info h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.profile-info p {
  font-size: 0.8rem;
  color: var(--gray);
  line-height: 1.5;
}

/* ── Links ── */
.links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  width: 100%;
}

.link-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border: 1.5px solid var(--gray-border);
  border-radius: 12px;
  text-decoration: none;
  color: var(--black);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  background: var(--white);
}

.link-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 100%;
  background: var(--black);
  transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 0;
}

.link-item:hover::before {
  width: 100%;
}

.link-item:hover {
  border-color: var(--black);
  color: var(--white);
  transform: translateX(6px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.link-item:hover .link-icon-wrap {
  background: var(--orange);
  color: var(--white);
  border-color: var(--orange);
}

.link-item:hover .link-arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--orange);
}

.link-icon-wrap {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1.5px solid var(--gray-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--black);
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.link-text {
  position: relative;
  z-index: 1;
  flex: 1;
}

.link-text .link-label {
  font-size: 0.9rem;
  font-weight: 500;
  display: block;
}

.link-text .link-sub {
  font-size: 0.72rem;
  color: var(--gray);
  transition: color 0.3s ease;
}

.link-item:hover .link-sub {
  color: rgba(255, 255, 255, 0.5);
}

.link-arrow {
  position: relative;
  z-index: 1;
  opacity: 0;
  transform: translateX(-8px);
  transition: all 0.3s ease;
  font-size: 0.85rem;
}

/* Primary link */
.link-item.primary {
  background: var(--black);
  border-color: var(--black);
  color: var(--white);
}

.link-item.primary::before {
  background: var(--orange);
}

.link-item.primary:hover {
  border-color: var(--orange);
}

.link-item.primary .link-icon-wrap {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--white);
}

.link-item.primary:hover .link-icon-wrap {
  background: var(--white);
  color: var(--orange);
  border-color: var(--white);
}

.link-item.primary .link-sub {
  color: rgba(255, 255, 255, 0.4);
}

.link-item.primary:hover .link-arrow {
  color: var(--white);
}

/* ══════════════════════════════════
   ABOUT BOX
══════════════════════════════════ */
.about-box {
  margin-top: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  padding: 1.4rem 1.6rem;
}

.about-title {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--orange);
  letter-spacing: 0.2em;
  margin-bottom: 0.8rem;
}

.about-body {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.9;
}

/* ══════════════════════════════════
   COPYRIGHT
══════════════════════════════════ */
.copyright {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.3);
  letter-spacing: 0.06em;
  margin-top: 2.5rem;
}

/* ══════════════════════════════════
   ANIMATIONS
══════════════════════════════════ */
@keyframes slideRight {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideLeft {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════
   RESPONSIVE
══════════════════════════════════ */
@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-left {
    align-items: center;
    text-align: center;
    padding: 4rem 2rem 3rem;
    min-height: 50dvh;
  }

  .hero-left-content {
    max-width: 100%;
  }

  .hero-left-content .description {
    max-width: 100%;
  }

  .hero-right {
    align-items: center;
    padding: 3rem 2rem 4rem;
  }

  .hero-right::before {
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
  }

  .hero-right-content {
    max-width: 520px;
  }

  .profile {
    justify-content: center;
    text-align: center;
    flex-direction: column;
    gap: 1rem;
  }
}

@media (max-width: 520px) {
  .hero-left {
    padding: 3rem 1.5rem 2.5rem;
  }

  .hero-left-content h1 {
    font-size: 2.5rem;
  }

  .hero-right {
    padding: 2.5rem 1.5rem 3rem;
  }

  .link-item {
    padding: 0.85rem 1.2rem;
    gap: 0.8rem;
  }

  .link-icon-wrap {
    width: 38px;
    height: 38px;
    font-size: 1rem;
  }

  .profile-photo {
    width: 80px;
    height: 80px;
  }
}