/* ── Reset & Base ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --primary: #6366f1;
  --secondary: #8b5cf6;
  --bg: #0f0f1a;
  --bg2: #16162a;
  --card: #1e1e35;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --border: #2d2d50;
  --radius: 12px;
  --transition: .3s ease;
}
html { scroll-behavior: smooth; }
body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ── Scrollbar ────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 50px; font-size: .95rem;
  font-weight: 600; cursor: pointer; border: none;
  transition: var(--transition); white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: 0 4px 20px rgba(99,102,241,.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(99,102,241,.5); }
.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff; }

/* ── Navbar ───────────────────────────────────────────────────── */
.navbar {
  position: fixed; top: 0; width: 100%; z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(15,15,26,.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,.3);
  padding: 10px 0;
}
.nav-container {
  max-width: 1200px; margin: auto;
  padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-size: 1.5rem; font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.nav-links {
  display: flex; list-style: none; gap: 8px;
}
.nav-links a {
  padding: 8px 14px; border-radius: 8px; font-size: .9rem;
  color: var(--text-muted); transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--text); background: var(--card); }
.nav-toggle {
  display: none; background: none; border: none; color: var(--text);
  font-size: 1.4rem; cursor: pointer;
}

/* ── Hero ─────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  text-align: center; position: relative; padding: 120px 24px 60px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -20%, rgba(99,102,241,.25), transparent),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(139,92,246,.15), transparent);
}
.hero-content { position: relative; z-index: 1; max-width: 700px; }
.hero-avatar-wrap {
  width: 150px; height: 150px; margin: 0 auto 24px;
  border-radius: 50%; overflow: hidden;
  border: 3px solid var(--primary);
  box-shadow: 0 0 40px rgba(99,102,241,.4);
}
.hero-avatar { width: 100%; height: 100%; object-fit: cover; }
.hero-tagline {
  font-size: .9rem; letter-spacing: 3px; text-transform: uppercase;
  color: var(--primary); margin-bottom: 12px; font-weight: 600;
}
.hero-name {
  font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800;
  background: linear-gradient(135deg, #fff, var(--text-muted));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}
.hero-title {
  font-size: clamp(1rem, 2.5vw, 1.4rem); color: var(--primary);
  font-weight: 500; margin-bottom: 16px;
}
.hero-sub { color: var(--text-muted); font-size: 1.05rem; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-socials {
  margin-top: 32px; display: flex; gap: 16px; justify-content: center;
}
.hero-socials a {
  width: 42px; height: 42px; border-radius: 50%;
  border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); transition: var(--transition);
}
.hero-socials a:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-3px); }
.hero-scroll {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  animation: bounce 2s infinite; color: var(--text-muted); font-size: 1.2rem;
}
@keyframes bounce { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(-10px)} }

/* ── Section ──────────────────────────────────────────────────── */
.section { padding: 100px 24px; }
.section-alt { background: var(--bg2); }
.container { max-width: 1200px; margin: auto; }
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 800;
  text-align: center; margin-bottom: 60px;
}
.section-title span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

/* ── About ────────────────────────────────────────────────────── */
.about-grid {
  display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: center;
}
.about-img-wrap {
  border-radius: var(--radius); overflow: hidden;
  border: 2px solid var(--border);
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
  aspect-ratio: 1; 
}
.about-img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.about-content h3 { font-size: 1.8rem; font-weight: 700; margin-bottom: 6px; }
.about-title { color: var(--primary); margin-bottom: 16px; font-size: 1.05rem; }
.about-content p { color: var(--text-muted); margin-bottom: 12px; }
.about-info { margin: 24px 0; display: flex; flex-direction: column; gap: 12px; }
.about-info > div { display: flex; align-items: center; gap: 12px; color: var(--text-muted); }
.about-info i { color: var(--primary); width: 18px; }
.about-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ── Services ─────────────────────────────────────────────────── */
.services-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px;
}
.service-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px; text-align: center; transition: var(--transition);
}
.service-card:hover { transform: translateY(-6px); border-color: var(--primary); box-shadow: 0 20px 40px rgba(99,102,241,.15); }
.service-icon {
  width: 64px; height: 64px; border-radius: 16px; margin: 0 auto 20px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  font-size: 1.5rem; color: #fff;
}
.service-card h3 { font-size: 1.1rem; margin-bottom: 12px; }
.service-card p { color: var(--text-muted); font-size: .9rem; }

/* ── Skills ───────────────────────────────────────────────────── */
.skills-category { margin-bottom: 40px; }
.skills-category h3 {
  font-size: 1.1rem; color: var(--primary); margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.skills-category h3::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}
.skills-grid { display: flex; flex-wrap: wrap; gap: 12px; }
.skill-pill {
  background: var(--card); border: 1px solid var(--border); border-radius: 50px;
  padding: 8px 18px; font-size: .9rem; display: flex; align-items: center; gap: 10px;
  transition: var(--transition);
}
.skill-pill:hover { border-color: var(--primary); background: rgba(99,102,241,.1); }
.skill-level {
  font-size: .75rem; color: var(--primary); font-weight: 600;
  background: rgba(99,102,241,.15); padding: 2px 8px; border-radius: 20px;
}

/* ── Projects ─────────────────────────────────────────────────── */
.projects-filter { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.filter-btn {
  padding: 8px 22px; border-radius: 50px; border: 1px solid var(--border);
  background: transparent; color: var(--text-muted); cursor: pointer; transition: var(--transition);
  font-size: .9rem;
}
.filter-btn.active, .filter-btn:hover {
  background: var(--primary); border-color: var(--primary); color: #fff;
}
.projects-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 28px;
}
.project-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: var(--transition);
}
.project-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(0,0,0,.3); border-color: var(--primary); }
.project-img {
  height: 200px; overflow: hidden; background: var(--bg2);
  display: flex; align-items: center; justify-content: center;
}
.project-img img { width: 100%; height: 100%; object-fit: cover; transition: .5s; }
.project-card:hover .project-img img { transform: scale(1.05); }
.project-img-placeholder { color: var(--text-muted); font-size: 3rem; }
.project-body { padding: 24px; }
.project-badge {
  display: inline-block; font-size: .75rem; padding: 3px 12px; border-radius: 20px;
  background: rgba(99,102,241,.2); color: var(--primary); margin-bottom: 12px;
}
.project-body h3 { font-size: 1.1rem; margin-bottom: 10px; }
.project-body p { color: var(--text-muted); font-size: .9rem; margin-bottom: 16px; line-height: 1.6; }
.project-tech { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }
.project-tech span {
  font-size: .75rem; padding: 3px 10px; border-radius: 20px;
  background: var(--bg); border: 1px solid var(--border); color: var(--text-muted);
}
.project-links { display: flex; gap: 12px; }
.project-links a {
  font-size: .85rem; display: flex; align-items: center; gap: 6px;
  color: var(--primary); transition: var(--transition);
}
.project-links a:hover { color: var(--secondary); }

/* ── Timeline ─────────────────────────────────────────────────── */
.timeline { position: relative; padding-left: 32px; }
.timeline::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 2px; background: linear-gradient(to bottom, var(--primary), var(--secondary));
}
.timeline-item {
  position: relative; margin-bottom: 40px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; transition: var(--transition);
}
.timeline-item::before {
  content: ''; position: absolute; left: -40px; top: 28px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--primary); border: 3px solid var(--bg);
  box-shadow: 0 0 12px var(--primary);
}
.timeline-item:hover { border-color: var(--primary); transform: translateX(4px); }
.timeline-period {
  font-size: .8rem; color: var(--primary); font-weight: 600;
  background: rgba(99,102,241,.15); padding: 3px 12px; border-radius: 20px;
  display: inline-block; margin-bottom: 12px;
}
.timeline-item h3 { font-size: 1.1rem; font-weight: 700; }
.timeline-item h4 { font-size: .95rem; color: var(--text-muted); margin-bottom: 10px; }
.timeline-item p { color: var(--text-muted); font-size: .9rem; }

/* ── Testimonials ─────────────────────────────────────────────── */
.testimonials-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px;
}
.testimonial-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; transition: var(--transition);
}
.testimonial-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.testimonial-stars { color: #f59e0b; margin-bottom: 16px; font-size: .9rem; }
.testimonial-text { color: var(--text-muted); font-style: italic; margin-bottom: 20px; font-size: .95rem; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.testimonial-avatar {
  width: 48px; height: 48px; border-radius: 50%; overflow: hidden;
  background: var(--bg2); border: 2px solid var(--primary);
  display: flex; align-items: center; justify-content: center;
}
.testimonial-avatar img { width: 100%; height: 100%; object-fit: cover; }
.testimonial-avatar-placeholder { color: var(--primary); font-size: 1.2rem; }
.testimonial-author h4 { font-size: .95rem; font-weight: 600; }
.testimonial-author p { font-size: .8rem; color: var(--text-muted); }

/* ── Contact ──────────────────────────────────────────────────── */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item { display: flex; align-items: center; gap: 16px; }
.contact-item i {
  width: 48px; height: 48px; border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.1rem; flex-shrink: 0;
}
.contact-item span { color: var(--text-muted); }
.contact-socials { display: flex; gap: 12px; margin-top: 8px; }
.contact-socials a {
  width: 42px; height: 42px; border-radius: 50%; border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); transition: var(--transition);
}
.contact-socials a:hover { border-color: var(--primary); color: var(--primary); }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form input, .contact-form textarea {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px 18px; color: var(--text); font-size: .95rem; width: 100%;
  transition: var(--transition); font-family: inherit;
}
.contact-form input:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,.15);
}
.contact-form textarea { resize: vertical; }
.form-msg { font-size: .9rem; min-height: 20px; }
.form-msg.success { color: #10b981; }
.form-msg.error { color: #ef4444; }

/* ── Footer ───────────────────────────────────────────────────── */
.footer {
  background: var(--bg2); border-top: 1px solid var(--border);
  padding: 24px; text-align: center;
  color: var(--text-muted); font-size: .9rem;
  display: flex; align-items: center; justify-content: center; gap: 24px;
}
.footer-admin-link { color: var(--border); font-size: .75rem; transition: var(--transition); }
.footer-admin-link:hover { color: var(--primary); }

/* ── Back to top ──────────────────────────────────────────────── */
.back-top {
  position: fixed; bottom: 24px; right: 24px; z-index: 999;
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff; border: none; cursor: pointer;
  box-shadow: 0 4px 20px rgba(99,102,241,.4);
  opacity: 0; pointer-events: none; transition: var(--transition);
  font-size: 1rem;
}
.back-top.visible { opacity: 1; pointer-events: all; }
.back-top:hover { transform: translateY(-3px); }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; top: 0; right: -100%; width: 75%; height: 100vh;
    background: var(--bg2); flex-direction: column; padding: 80px 32px 32px;
    gap: 4px; transition: .4s; box-shadow: -10px 0 30px rgba(0,0,0,.5);
  }
  .nav-links.open { right: 0; }
  .nav-links a { font-size: 1rem; padding: 12px 16px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
}