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

:root {
  --primary: #e91e63;
  --primary-dark: #c2185b;
  --primary-light: #f8bbd0;
  --accent: #7c4dff;
  --accent-dark: #512da8;
  --dark: #0d0d1a;
  --dark-2: #161629;
  --dark-3: #1e1e3a;
  --surface: #1e1e3a;
  --surface-2: #252545;
  --text: #e8eaf6;
  --text-muted: #9fa8da;
  --border: rgba(233, 30, 99, 0.25);
  --shadow: 0 4px 32px rgba(233, 30, 99, 0.12);
  --radius: 8px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  background: var(--dark);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--primary-light);
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ===== NAVBAR ===== */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  height: 64px;
  background: rgba(13, 13, 26, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  letter-spacing: 0.02em;
}

.nav-logo img {
  width: 40px;
  border-radius: 50%;
  filter: drop-shadow(0 0 6px rgba(224,123,32,0.50));
}

.nav-logo span {
  color: var(--primary);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 8px;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover {
  color: var(--text);
  background: var(--surface);
}

/* Lang toggle */
.lang-toggle {
  display: flex;
  gap: 4px;
  margin-left: 16px;
  border-left: 1px solid var(--border);
  padding-left: 16px;
}

.lang-btn {
  background: none;
  border: 1px solid transparent;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.05em;
}

.lang-btn.active,
.lang-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(233, 30, 99, 0.08);
}

/* Mobile menu toggle */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  padding: 80px 5% 60px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 30%, rgba(124,77,255,0.12) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 70%, rgba(233,30,99,0.08) 0%, transparent 60%);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(233,30,99,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(233,30,99,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 50%, black 20%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero-logo-wrap {
  position: relative;
  display: block;
  width: fit-content;
  margin: 0 auto 28px;
  animation: float 4s ease-in-out infinite;
}

.hero-logo-wrap::before,
.hero-logo-wrap::after {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-family: 'Courier New', 'Fira Code', monospace;
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.82;
  line-height: 1;
  text-shadow: 0 0 16px rgba(124,77,255,0.55);
  pointer-events: none;
}

.hero-logo-wrap::before {
  content: '<';
  right: calc(100% + 14px);
}

.hero-logo-wrap::after {
  content: '/>';
  left: calc(100% + 14px);
}

.hero-logo {
  display: block;
  width: 180px;
  filter:
    drop-shadow(0 0 28px rgba(224,123,32,0.60))
    drop-shadow(0 0 8px  rgba(224,123,32,0.30))
    drop-shadow(0 5px 14px rgba(0,0,0,0.45));
}

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

.hero-tag {
  display: inline-block;
  background: rgba(233,30,99,0.12);
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 5px 16px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  margin-bottom: 12px;
  background: linear-gradient(135deg, #fff 30%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--text-muted);
  margin-bottom: 32px;
  font-weight: 400;
}

.hero-cta {
  display: inline-flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 20px rgba(233,30,99,0.35);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(233,30,99,0.45);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}

.btn-outline:hover {
  background: rgba(233,30,99,0.08);
  color: var(--primary-light);
  transform: translateY(-2px);
}

/* ===== SECTIONS ===== */
section {
  padding: 80px 5%;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 10px;
  display: block;
}

.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  margin-bottom: 14px;
  color: var(--text);
}

.section-desc {
  color: var(--text-muted);
  max-width: 580px;
  font-size: 1rem;
  margin-bottom: 48px;
}

/* ===== ABOUT ===== */
#about {
  background: var(--dark-2);
}

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

.about-text p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: 1rem;
}

.about-text p strong {
  color: var(--text);
}

.about-nip {
  margin-top: 24px;
  padding: 12px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--text-muted);
  display: inline-block;
}

.about-nip strong {
  color: var(--primary);
  font-family: monospace;
  font-size: 1rem;
}

.about-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  transition: border-color var(--transition);
}

.stat-card:hover {
  border-color: var(--primary);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ===== SERVICES ===== */
#services {
  background: var(--dark);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  border-color: rgba(233,30,99,0.5);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.service-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(233,30,99,0.1);
  border-radius: var(--radius);
  font-size: 1.5rem;
}

.service-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--text);
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== TECH STACK ===== */
#stack {
  background: var(--dark-2);
}

.stack-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}

.stack-group h4 {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stack-tag {
  background: var(--dark-3);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.82rem;
  padding: 5px 12px;
  border-radius: 4px;
  font-family: 'Consolas', 'Courier New', monospace;
  transition: all var(--transition);
}

.stack-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(233,30,99,0.06);
}

/* ===== CONTACT ===== */
#contact {
  background: var(--dark);
  text-align: center;
}

.contact-card {
  max-width: 560px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 48px 40px;
  box-shadow: var(--shadow);
}

.contact-card p {
  color: var(--text-muted);
  margin-bottom: 28px;
  font-size: 1rem;
}

.contact-mail {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(233,30,99,0.08);
  border: 1.5px solid var(--primary);
  color: var(--primary);
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 1.05rem;
  font-weight: 600;
  transition: all var(--transition);
}

.contact-mail:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(233,30,99,0.35);
}

.contact-mail svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ===== FOOTER ===== */
footer {
  background: var(--dark-2);
  border-top: 1px solid var(--border);
  padding: 28px 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-brand img {
  height: 28px;
  width: 28px;
}

.footer-info {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: right;
}

/* ===== DIVIDER ===== */
.divider {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  margin-bottom: 32px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .stats-row {
    grid-template-columns: repeat(3, 1fr);
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0; right: 0;
    background: var(--dark-2);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    gap: 4px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    display: block;
    padding: 10px 16px;
    width: 100%;
  }

  .lang-toggle {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid var(--border);
    padding-top: 10px;
    margin-top: 4px;
    width: 100%;
    justify-content: center;
  }

  .nav-hamburger {
    display: flex;
  }

  .contact-card {
    padding: 32px 24px;
  }

  .footer-info {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .stats-row {
    grid-template-columns: 1fr;
  }
}