/* =========================
   Modern Portfolio Styles
   ========================= */

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #a5b4fc;
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --shadow: 0 20px 60px rgba(15, 23, 42, 0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.25s ease;
  --max-width: 1100px;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.narrow { max-width: 900px; }

/* NAVBAR */
.navbar {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  z-index: 999;
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.25rem;
  max-width: var(--max-width);
  margin: 0 auto;
}
.nav-logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
  text-decoration: none;
}
.nav-menu {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}
.nav-link {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  position: relative;
  transition: var(--transition);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--primary);
  transition: var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}
.nav-link.active::after,
.nav-link:hover::after {
  width: 100%;
}
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  gap: 6px;
  padding: 4px;
  flex-direction: column;
}
.hamburger span {
  width: 26px; height: 3px;
  background: var(--text);
  border-radius: 12px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* HERO */
.hero {
  position: relative;
  padding: 140px 0 100px;
  overflow: hidden;
}
.hero-blob {
  position: absolute;
  filter: blur(70px);
  opacity: 0.55;
  z-index: -1;
}
.hero-blob-1 {
  width: 320px; height: 320px;
  background: #c7d2fe;
  top: -40px; left: -40px;
}
.hero-blob-2 {
  width: 360px; height: 360px;
  background: #a5b4fc;
  bottom: -60px; right: -30px;
}
.hero-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.hero-text h1 {
  font-size: clamp(2.4rem, 4vw, 3rem);
  line-height: 1.2;
  margin: 0.6rem 0 0.75rem;
}
.highlight { color: var(--primary); }
.hero-subtitle {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 1.4rem;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #eef2ff;
  color: #4338ca;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid #e0e7ff;
}
.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.3rem;
  border-radius: 12px;
  font-weight: 700;
  text-decoration: none;
  transition: var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 15px 35px rgba(99, 102, 241, 0.25);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-outline {
  border-color: #dfe3f5;
  color: var(--text);
  background: #fff;
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.chip {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  font-weight: 600;
  color: var(--muted);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
}
.hero-photo-wrap {
  display: flex;
  justify-content: center;
}
.photo-ring {
  padding: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, #eef2ff, #c7d2fe);
  box-shadow: 0 20px 50px rgba(99, 102, 241, 0.25);
}
.profile-photo {
  width: min(320px, 80vw);
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 50%;
  border: 6px solid #fff;
  box-shadow: var(--shadow);
}

/* SECTIONS */
.section {
  padding: 80px 0;
}
.section.alt {
  background: #ffffff;
}
.section-title {
  text-align: center;
  font-size: clamp(2rem, 3vw, 2.4rem);
  margin-bottom: 0.6rem;
}
.section-subtitle {
  text-align: center;
  color: var(--muted);
  margin-bottom: 2rem;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* VALUES */
.values-grid {
  margin-top: 2rem;
  display: grid;
  gap: 1.1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.value-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  transition: var(--transition);
}
.value-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.value-card i {
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 0.6rem;
}
.value-card h3 { margin-bottom: 0.35rem; }

/* TIMELINE */
.timeline {
  position: relative;
  margin-top: 2rem;
  padding-left: 14px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 0;
  width: 3px;
  height: 100%;
  background: #e2e8f0;
}
.timeline-item {
  position: relative;
  padding-left: 32px;
  margin-bottom: 2rem;
}
.marker {
  position: absolute;
  left: 7px;
  top: 8px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 6px rgba(99, 102, 241, 0.2);
}
.timeline-item.featured .marker {
  background: #10b981;
  box-shadow: 0 0 0 7px rgba(16, 185, 129, 0.25);
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.08);
  transition: var(--transition);
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.date {
  display: inline-block;
  background: #eef2ff;
  color: #4338ca;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  font-weight: 700;
  margin-bottom: 0.6rem;
}
.card h3 { margin-bottom: 0.5rem; }
.tags { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.75rem; }
.tags span {
  background: #f8fafc;
  border: 1px solid var(--border);
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  font-weight: 600;
  color: var(--muted);
}

/* PROJECTS */
.projects-grid {
  margin-top: 2rem;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.08);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.project-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.project-head { display: flex; align-items: center; gap: 0.75rem; }
.project-head i { color: var(--primary); font-size: 1.3rem; }
.stack { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.stack span {
  background: #eef2ff;
  color: #4338ca;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9rem;
}
.project-links {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.project-links a {
  flex: 1;
  min-width: 140px;
  text-align: center;
  text-decoration: none;
  font-weight: 700;
  padding: 0.65rem 0.75rem;
  border-radius: 12px;
  border: 1.5px solid var(--primary);
  color: var(--primary);
  transition: var(--transition);
  background: #fff;
}
.project-links a:hover { background: var(--primary); color: #fff; }
.project-links .ghost {
  border-style: dashed;
}

/* ACTIVITIES */
.activities-grid {
  margin-top: 2rem;
  display: grid;
  gap: 1.1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.activity-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-top: 4px solid var(--primary);
  border-radius: var(--radius);
  padding: 1.2rem;
  box-shadow: 0 10px 32px rgba(15, 23, 42, 0.07);
  text-align: center;
  transition: var(--transition);
}
.activity-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.activity-card .icon {
  width: 56px; height: 56px;
  margin: 0 auto 0.8rem;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  display: grid; place-items: center;
  color: #fff; font-size: 1.2rem;
}

/* CONTACT */
.contact-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: start;
}
.contact-list {
  margin-top: 1.5rem;
  display: grid;
  gap: 0.9rem;
}
.contact-item {
  display: flex;
  gap: 0.9rem;
  padding: 1rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  transition: var(--transition);
}
.contact-item:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.contact-item i { color: var(--primary); font-size: 1.2rem; margin-top: 0.1rem; }
.contact-item a { color: var(--primary); font-weight: 700; text-decoration: none; }
.contact-item a:hover { text-decoration: underline; }

.cta-box {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: #fff;
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: 0 20px 50px rgba(99, 102, 241, 0.25);
}
.cta-box h3 { font-size: 1.4rem; margin-bottom: 0.4rem; }
.cta-box ul { list-style: none; margin: 1rem 0; display: grid; gap: 0.4rem; }
.cta-box li { display: flex; gap: 0.5rem; align-items: center; }
.cta-box i { color: #c7d2fe; }
.btn-light {
  background: #fff;
  color: var(--primary);
  border: none;
  box-shadow: 0 12px 30px rgba(255, 255, 255, 0.25);
}
.btn-light:hover { transform: translateY(-2px); }

/* FOOTER */
.footer {
  padding: 32px 0;
  background: #0b1222;
  color: #e2e8f0;
}
.footer-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-links {
  display: flex;
  gap: 1rem;
}
.footer-links a {
  color: #e2e8f0;
  font-size: 1.2rem;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--primary-light); transform: translateY(-2px); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .nav-menu {
    position: fixed;
    inset: 64px 0 auto 0;
    background: #fff;
    flex-direction: column;
    padding: 1rem 1.25rem 1.5rem;
    gap: 1rem;
    transform: translateY(-120%);
    transition: var(--transition);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.12);
  }
  .nav-menu.active { transform: translateY(0); }
  .hamburger { display: inline-flex; }
}

@media (max-width: 600px) {
  .hero { padding-top: 120px; }
  .hero-actions { width: 100%; }
  .hero-actions .btn { flex: 1; justify-content: center; }
  .hero-meta { flex-direction: column; }
  .footer-flex { flex-direction: column; align-items: flex-start; }
}