:root {
  --bg:        #0e0e13;
  --bg-card:   #131319;
  --bg-alt:    #1a1a22;
  --border:    #2a2a35;
  --fg:        #C9FEF2;
  --fg-dim:    #7a8fa8;
  --accent:    #F64D87;
  --purple:    #7D6B93;
  --blue:      #6BB5E2;
  --font:      'JetBrains Mono', 'Fira Code', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.7;
  overflow-x: hidden;
}

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

/* ── NAV ──────────────────────────────────────────────── */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  background: rgba(14, 14, 19, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}

#nav.scrolled { border-bottom-color: var(--border); }

.nav-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
}

#nav ul {
  display: flex;
  gap: 32px;
  list-style: none;
}

#nav ul a {
  color: var(--fg-dim);
  font-size: 13px;
  transition: color 0.2s;
}

#nav ul a:hover { color: var(--fg); }

/* ── HERO ─────────────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  padding: 120px 80px 80px;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-label {
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero-content h1 {
  font-size: clamp(48px, 7vw, 80px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

.accent { color: var(--accent); }

.hero-sub {
  color: var(--fg-dim);
  font-size: 15px;
  max-width: 380px;
  margin-bottom: 36px;
  line-height: 1.8;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  border-radius: 6px;
  transition: opacity 0.2s, transform 0.2s;
}

.btn:hover { opacity: 0.85; transform: translateY(-2px); }

/* code card */
.hero-visual { display: flex; justify-content: center; }

.code-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-width: 380px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

.code-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.dot.red    { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green  { background: #27c93f; }

.code-filename {
  margin-left: 8px;
  font-size: 12px;
  color: var(--fg-dim);
}

.code-body {
  padding: 20px;
  font-size: 13px;
  line-height: 1.9;
  white-space: pre;
  font-family: var(--font);
}

.code-body .kw  { color: var(--accent); }
.code-body .str { color: var(--blue); }
.code-body .fn  { color: var(--purple); }

/* ── SECTIONS ─────────────────────────────────────────── */
section { padding: 100px 0; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 60px;
  display: flex;
  align-items: center;
  gap: 16px;
  letter-spacing: -0.5px;
}

.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── ABOUT ────────────────────────────────────────────── */
#about { background: var(--bg-alt); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text p {
  color: var(--fg-dim);
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.9;
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.stat {
  border-left: 3px solid var(--accent);
  padding-left: 20px;
}

.stat-num {
  font-size: 42px;
  font-weight: 800;
  color: var(--fg);
  line-height: 1;
  letter-spacing: -2px;
}

.stat-suffix {
  font-size: 32px;
  font-weight: 800;
  color: var(--fg);
}

.stat-label {
  display: block;
  color: var(--fg-dim);
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-top: 4px;
}

/* ── SKILLS ───────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 0.3s, transform 0.3s;
  cursor: default;
}

.skill-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.skill-icon {
  width: 40px; height: 40px;
  color: var(--accent);
  margin-bottom: 16px;
}

.skill-icon svg { width: 100%; height: 100%; }

.skill-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.skill-card p {
  color: var(--fg-dim);
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.skill-tags span {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--bg-alt);
  color: var(--fg-dim);
  border: 1px solid var(--border);
}

.skill-card[data-skill="html"]  .skill-icon { color: #e34c26; }
.skill-card[data-skill="css"]   .skill-icon { color: #264de4; }
.skill-card[data-skill="js"]    .skill-icon { color: #f7df1e; }
.skill-card[data-skill="php"]   .skill-icon { color: #8892BF; }
.skill-card[data-skill="sql"]   .skill-icon { color: var(--blue); }
.skill-card[data-skill="tools"] .skill-icon { color: var(--purple); }

.skill-card[data-skill="html"]:hover  { border-color: #e34c26; }
.skill-card[data-skill="css"]:hover   { border-color: #264de4; }
.skill-card[data-skill="js"]:hover    { border-color: #f7df1e; }
.skill-card[data-skill="php"]:hover   { border-color: #8892BF; }
.skill-card[data-skill="sql"]:hover   { border-color: var(--blue); }
.skill-card[data-skill="tools"]:hover { border-color: var(--purple); }

/* ── CONTACT ──────────────────────────────────────────── */
#contact { background: var(--bg-alt); text-align: center; }

.contact-sub {
  color: var(--fg-dim);
  font-size: 14px;
  margin-bottom: 48px;
  margin-top: -40px;
}

.contact-cards {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--fg-dim);
  font-size: 13px;
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
}

.contact-card:hover {
  border-color: var(--accent);
  color: var(--fg);
  transform: translateY(-3px);
}

.contact-card svg {
  width: 20px; height: 20px;
  stroke: var(--accent);
  flex-shrink: 0;
}

/* ── FOOTER ───────────────────────────────────────────── */
footer {
  text-align: center;
  padding: 30px;
  color: var(--fg-dim);
  font-size: 12px;
  border-top: 1px solid var(--border);
}

/* ── SCROLL ANIMATIONS ────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── RESPONSIVE ───────────────────────────────────────── */
@media (max-width: 900px) {
  #hero {
    grid-template-columns: 1fr;
    padding: 120px 40px 60px;
    text-align: center;
  }

  .hero-sub { max-width: 100%; }
  .hero-visual { display: none; }

  .about-grid { grid-template-columns: 1fr; }

  .skills-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  #nav { padding: 16px 20px; }
  #nav ul { gap: 20px; }
  .skills-grid { grid-template-columns: 1fr; }
  section { padding: 70px 0; }
}