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

:root {
  --coral: #ff6b6b;
  --coral-light: #ff8e8e;
  --coral-dark: #e05555;
  --bg: #0f0f13;
  --bg-2: #16161d;
  --bg-3: #1e1e28;
  --text: #f0f0f5;
  --text-muted: #6e6e80;
  --border: rgba(255,255,255,0.08);
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 4px 32px rgba(255, 107, 107, 0.12);
  --font-body: 'Inter', sans-serif;
  --font-display: 'Sora', sans-serif;
}

[data-theme="light"] {
  --bg: #fafafa;
  --bg-2: #f0f0f5;
  --bg-3: #e8e8f0;
  --text: #0f0f1a;
  --text-muted: #5a5a72;
  --border: rgba(0,0,0,0.1);
  --shadow: 0 4px 32px rgba(255, 107, 107, 0.18);
}

html { scroll-behavior: smooth; }

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

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { font-family: var(--font-display); line-height: 1.2; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin-bottom: 1.2rem; }
h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }

p { color: var(--text-muted); margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }
a { text-decoration: none; color: inherit; }

.highlight {
  background: linear-gradient(135deg, var(--coral), #ff9a9e);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section { padding: 100px 0; }
.center { text-align: center; }

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--coral);
  margin-bottom: 0.75rem;
}
.section-label.center { display: block; }

/* ===========================
   BUTTONS
=========================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.25s ease;
  border: 2px solid transparent;
  background: linear-gradient(135deg, var(--coral), #ff9a9e);
  color: #fff;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,107,107,0.4); }

.btn--ghost {
  background: transparent;
  border-color: rgba(255,107,107,0.5);
  color: var(--coral-light);
}
.btn--ghost:hover { background: rgba(255,107,107,0.1); box-shadow: none; }

.btn--sm { padding: 10px 20px; font-size: 0.87rem; }
.btn--full { width: 100%; justify-content: center; }

/* ===========================
   NAVIGATION
=========================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: background 0.3s, padding 0.3s, box-shadow 0.3s;
}
.nav--scrolled {
  background: rgba(15,15,19,0.9);
  backdrop-filter: blur(16px);
  padding: 12px 0;
  box-shadow: 0 1px 0 var(--border);
}
[data-theme="light"] .nav--scrolled {
  background: rgba(250,250,250,0.9);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
}
.dot { color: var(--coral); }
.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav__links a { color: var(--text-muted); font-size: 0.92rem; transition: color 0.2s; }
.nav__links a:hover { color: var(--text); }

/* ===========================
   HERO
=========================== */
.hero {
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,107,107,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
}
.hero__eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--coral);
  margin-bottom: 1rem;
}
.hero__text h1 { margin-bottom: 1.2rem; }
.hero__sub { font-size: 1.1rem; margin-bottom: 2rem; }
.hero__cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* Code card decoration */
.hero__visual { position: relative; display: flex; justify-content: center; align-items: center; }
.blob {
  position: absolute;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,107,107,0.18) 0%, transparent 70%);
  filter: blur(40px);
}
.code-card {
  position: relative;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  font-family: 'Courier New', monospace;
  font-size: 0.95rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: var(--shadow);
  min-width: 280px;
}
.code-line { white-space: pre; }
.kw { color: var(--coral-light); }
.str { color: #60c7a1; }

/* ===========================
   ABOUT
=========================== */
.about { background: var(--bg-2); }
.about__inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 64px;
  align-items: center;
}
.about__avatar {
  width: 180px; height: 180px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 0 6px rgba(255,107,107,0.15);
  flex-shrink: 0;
  display: block;
}
.about__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  margin-top: 1.5rem;
}
.about__badges li {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 8px 16px;
  font-size: 0.88rem;
  color: var(--text);
}

/* ===========================
   SKILLS
=========================== */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.skill-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
  opacity: 0;
  transform: translateY(20px);
}
.skill-card.visible { opacity: 1; transform: translateY(0); transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.25s, box-shadow 0.25s; }
.skill-card:hover {
  border-color: rgba(255,107,107,0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.skill-card__icon { font-size: 2rem; margin-bottom: 12px; }

/* ===========================
   SERVICES
=========================== */
.services { background: var(--bg-2); }
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.service-card {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  opacity: 0;
  transform: translateY(20px);
}
.service-card.visible { opacity: 1; transform: translateY(0); transition: opacity 0.5s ease, transform 0.5s ease; }
.service-card--featured {
  border-color: rgba(255,107,107,0.5);
  background: linear-gradient(160deg, rgba(255,107,107,0.07), var(--bg-3));
  box-shadow: var(--shadow);
}
.service-card__num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(255,107,107,0.2);
  margin-bottom: 12px;
  line-height: 1;
}
.service-card--featured .service-card__num { color: rgba(255,107,107,0.5); }
.service-card ul {
  list-style: none;
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.service-card ul li {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding-left: 20px;
  position: relative;
}
.service-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--coral);
  font-weight: 700;
}

/* ===========================
   PROCESS
=========================== */
.process__steps {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-top: 56px;
  flex-wrap: wrap;
}
.process-step {
  flex: 1;
  min-width: 180px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  opacity: 0;
  transform: translateY(20px);
}
.process-step.visible { opacity: 1; transform: translateY(0); transition: opacity 0.5s ease, transform 0.5s ease; }
.process-step__num {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--coral), #ff9a9e);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 16px;
}
.process-step__arrow {
  color: var(--coral);
  font-size: 1.6rem;
  margin-top: 36px;
  flex-shrink: 0;
  opacity: 0.5;
}

/* ===========================
   CONTACT
=========================== */
.contact { background: var(--bg-2); }
.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}
.contact__email { margin-top: 1.5rem; font-size: 1rem; }
.contact__email a { color: var(--coral-light); font-weight: 500; }
.contact__email a:hover { text-decoration: underline; }

.contact__form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 0.88rem; font-weight: 500; color: var(--text); }
.form-group input,
.form-group textarea {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--coral);
  box-shadow: 0 0 0 3px rgba(255,107,107,0.15);
}

/* ===========================
   FOOTER
=========================== */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.footer__inner p { font-size: 0.85rem; margin: 0; }
.footer__links {
  display: flex;
  gap: 24px;
}
.footer__links a { font-size: 0.85rem; color: var(--text-muted); transition: color 0.2s; }
.footer__links a:hover { color: var(--coral); }

/* ===========================
   THEME TOGGLE
=========================== */
.theme-toggle {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 50px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}
.theme-toggle:hover {
  border-color: rgba(255,107,107,0.5);
  transform: rotate(15deg);
}
.theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { display: none; }
  .about__inner { grid-template-columns: 1fr; text-align: center; }
  .about__avatar { margin: 0 auto; }
  .about__badges { justify-content: center; }
  .skills__grid { grid-template-columns: repeat(2, 1fr); }
  .services__grid { grid-template-columns: 1fr; }
  .contact__inner { grid-template-columns: 1fr; }
  .process__steps { flex-direction: column; }
  .process-step__arrow { display: none; }
}
@media (max-width: 600px) {
  .skills__grid { grid-template-columns: 1fr; }
  .nav__links { display: none; }
  .hero { padding: 120px 0 80px; }
  .footer__inner { flex-direction: column; text-align: center; }
}