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

:root {
  --blue:       #1a73e8;
  --blue-light: #e8f0fe;
  --blue-dark:  #1557b0;
  --text:       #202124;
  --text-sub:   #5f6368;
  --border:     #e8eaed;
  --bg:         #f8f9fa;
  --card:       #ffffff;
  --radius:     12px;
  --shadow:     0 2px 12px rgba(0,0,0,0.08);
  --nav-h:      64px;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

img { display: block; max-width: 100%; }
a  { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* =============================================
   Navigation
   ============================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: #fff;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
}
.nav-inner {
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  letter-spacing: 0.02em;
}
.nav-logo:hover { text-decoration: none; color: var(--blue); }
.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
}
.nav-links a {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 24px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-sub);
  transition: background 0.15s, color 0.15s;
}
.nav-links a:hover,
.nav-links a.active {
  background: var(--blue-light);
  color: var(--blue-dark);
  text-decoration: none;
}

/* =============================================
   Layout Helpers
   ============================================= */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 56px 0; }
.section + .section { border-top: 1px solid var(--border); }

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 8px;
}
.section-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 24px;
}

/* =============================================
   Hero (index)
   ============================================= */
.hero {
  background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
  color: #fff;
  padding: 72px 24px 56px;
  text-align: center;
}
.hero-avatar {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 24px;
  border: 4px solid rgba(255,255,255,0.5);
}
.hero-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero h1 {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 8px;
}
.hero-role {
  font-size: 1rem;
  opacity: 0.88;
  letter-spacing: 0.06em;
}
.hero-btns {
  margin-top: 28px;
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  display: inline-block;
  padding: 10px 28px;
  border-radius: 28px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s;
}
.btn:hover { opacity: 0.85; text-decoration: none; }
.btn-white  { background: #fff; color: var(--blue-dark); }
.btn-outline { border: 2px solid rgba(255,255,255,0.7); color: #fff; }

/* =============================================
   About (index)
   ============================================= */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.about-img {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--border);
}
.about-img img { width: 100%; height: 100%; object-fit: cover; }
.about-text p + p { margin-top: 12px; }

/* =============================================
   Skills (index)
   ============================================= */
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.skill-tag {
  background: var(--blue-light);
  color: var(--blue-dark);
  border-radius: 24px;
  padding: 6px 18px;
  font-size: 0.88rem;
  font-weight: 600;
}

/* =============================================
   Cards (works)
   ============================================= */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.15s, box-shadow 0.15s;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.12);
}
.card-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--border);
}
.card-body {
  padding: 18px 20px 22px;
}
.card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.card-body h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.card-body p {
  font-size: 0.88rem;
  color: var(--text-sub);
}

/* =============================================
   Hobby row (works)
   ============================================= */
.hobby-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.hobby-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}
.hobby-icon { font-size: 2rem; flex-shrink: 0; }
.hobby-item h3 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.hobby-item p  { font-size: 0.88rem; color: var(--text-sub); }

/* =============================================
   Contact
   ============================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.contact-info p {
  color: var(--text-sub);
  margin-bottom: 24px;
}
.link-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.link-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 13px 18px;
  color: var(--text);
  font-weight: 600;
  font-size: 0.9rem;
  transition: border-color 0.15s, background 0.15s;
}
.link-btn:hover {
  border-color: var(--blue);
  background: var(--blue-light);
  text-decoration: none;
}
.link-btn .icon { font-size: 1.2rem; }

/* Contact Form */
.form { display: flex; flex-direction: column; gap: 16px; }
.form label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-sub);
  margin-bottom: 4px;
  display: block;
}
.form input,
.form textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color 0.15s;
  outline: none;
}
.form input:focus,
.form textarea:focus { border-color: var(--blue); }
.form textarea { resize: vertical; min-height: 140px; }
.btn-blue {
  background: var(--blue);
  color: #fff;
  border: none;
  padding: 12px 32px;
  border-radius: 28px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  align-self: flex-start;
  transition: background 0.15s;
}
.btn-blue:hover { background: var(--blue-dark); }

/* =============================================
   Page Hero (sub pages)
   ============================================= */
.page-hero {
  background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
  color: #fff;
  padding: 48px 24px 40px;
  text-align: center;
}
.page-hero h1 { font-size: 1.8rem; font-weight: 700; margin-bottom: 6px; }
.page-hero p  { opacity: 0.85; font-size: 0.95rem; }

/* =============================================
   Footer
   ============================================= */
footer {
  text-align: center;
  padding: 32px 16px;
  font-size: 0.8rem;
  color: var(--text-sub);
  border-top: 1px solid var(--border);
}

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 640px) {
  .hero h1      { font-size: 1.7rem; }
  .about-grid   { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .nav-links a  { padding: 5px 10px; font-size: 0.82rem; }
}