:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --bg-soft: rgba(15, 23, 42, 0.05);
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: #ffffff;
  --text-primary: #0f172a;
  --text-muted: #475569;
  --border: rgba(15, 23, 42, 0.08);
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --accent-soft: rgba(37, 99, 235, 0.15);
  --shadow: 0 32px 80px -40px rgba(15, 23, 42, 0.35);
  --radius-lg: 32px;
  --radius-md: 20px;
  --radius-sm: 12px;
  scroll-behavior: smooth;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1220;
  --bg-soft: rgba(148, 163, 184, 0.08);
  --surface: rgba(15, 23, 42, 0.72);
  --surface-strong: #111827;
  --text-primary: #f8fafc;
  --text-muted: #94a3b8;
  --border: rgba(148, 163, 184, 0.24);
  --accent: #60a5fa;
  --accent-strong: #3b82f6;
  --accent-soft: rgba(96, 165, 250, 0.18);
  --shadow: 0 40px 120px -48px rgba(2, 6, 23, 0.8);
}

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

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  margin: 0;
  scroll-padding-top: 96px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}

a:hover {
  color: var(--accent);
}

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

.btn {
  font-weight: 600;
  border-radius: 999px;
  transition: all 0.3s ease;
}

.btn-gradient {
  background: linear-gradient(135deg, #2563eb, #9333ea);
  color: #ffffff !important;
  border: none;
  padding: 0.75rem 1.85rem;
  box-shadow: 0 24px 48px -32px rgba(99, 102, 241, 0.65);
}

.btn-gradient:hover,
.btn-gradient:focus {
  color: #ffffff !important;
  transform: translateY(-2px);
  box-shadow: 0 32px 80px -40px rgba(99, 102, 241, 0.7);
}

.btn-outline {
  border: 1.5px solid var(--border);
  color: var(--text-primary);
  background: transparent;
  padding: 0.75rem 1.85rem;
}

.btn-outline:hover,
.btn-outline:focus {
  border-color: var(--accent-strong);
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.btn-icon {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  justify-content: center;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
}

.btn-icon:hover,
.btn-icon:focus {
  border-color: var(--accent-strong);
  color: var(--accent-strong);
}

.eyebrow {
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-strong);
}

.section {
  padding: 120px 0;
}

.section-title {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-size: clamp(2rem, 4vw, 2.9rem);
  margin-bottom: 0.75rem;
  line-height: 1.1;
}

.section-text {
  max-width: 720px;
  color: var(--text-muted);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header.text-center {
  margin-bottom: 3.5rem;
}

.section-header:not(.text-center) {
  text-align: left;
}

.section-header:not(.text-center) .section-text {
  margin: 0;
}

.modern-nav {
  backdrop-filter: blur(20px);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease, padding 0.3s ease, border-color 0.3s ease;
  padding: 0.85rem 0;
}

#mainNav.navbar-shrink {
  padding: 0.55rem 0;
  background: var(--surface-strong);
  box-shadow: var(--shadow);
}

.navbar-brand {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary) !important;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.brand-mark {
  color: var(--accent-strong);
}

.brand-surname {
  color: var(--text-primary);
}

.modern-nav .nav-link {
  color: var(--text-primary) !important;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  transition: color 0.3s ease, background 0.3s ease;
}

.modern-nav .nav-link:hover,
.modern-nav .nav-link:focus {
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.modern-nav .nav-link.active {
  color: var(--accent-strong) !important;
  background: var(--accent-soft) !important;
}

.navbar-toggler {
  border: 1px solid var(--border);
  background: var(--surface-strong);
  color: var(--text-primary) !important;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
}

.hero {
  position: relative;
  padding: 160px 0 120px;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 10% 20%, rgba(54, 97, 255, 0.35), transparent 55%), radial-gradient(circle at 90% 10%, rgba(14, 165, 233, 0.25), transparent 45%), linear-gradient(140deg, rgba(37, 99, 235, 0.18), transparent 60%);
  pointer-events: none;
}

.hero-title {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-size: clamp(2.6rem, 4.8vw, 3.8rem);
  line-height: 1.05;
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin-bottom: 1.5rem;
}

.hero-role {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.role-label {
  font-weight: 600;
  color: var(--text-muted);
}

.role-text {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--accent-strong);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 0.45rem 1.1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.meta-chip {
  padding: 0.4rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text-muted);
  font-weight: 500;
}

.hero-visual {
  position: relative;
  max-width: 420px;
  margin: 0 auto;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 2.25rem;
  box-shadow: var(--shadow);
}

.hero-avatar {
  border-radius: var(--radius-md);
  object-fit: cover;
  width: 100%;
  filter: saturate(1.02);
}

.hero-floating-card {
  position: absolute;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow);
  min-width: 180px;
}

.hero-floating-card.top {
  top: 16%;
  right: -12%;
}

.hero-floating-card.bottom {
  bottom: 12%;
  left: -10%;
}

.floating-label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.floating-value {
  display: block;
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 600;
  margin-top: 0.25rem;
}

.surface-card {
  background: var(--surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 2.25rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 1.75rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.checklist li {
  position: relative;
  padding-left: 1.6rem;
  color: var(--text-muted);
}

.checklist li::before {
  content: "-";
  position: absolute;
  left: 0;
  top: 0.1rem;
  font-weight: 700;
  color: var(--accent-strong);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 3rem;
}

.metric-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.metric-value {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  display: block;
  margin-bottom: 0.5rem;
}

.metric-label {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.experience {
  background: var(--bg);
}

.feature-card {
  background: var(--surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 2.25rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-strong);
}

.feature-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.feature-pill {
  background: var(--accent-soft);
  color: var(--accent-strong);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  font-weight: 600;
}

.feature-location {
  color: var(--text-muted);
}

.feature-title {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-size: 1.35rem;
  margin: 0;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.feature-list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--text-muted);
}

.feature-list li::before {
  content: "-";
  position: absolute;
  left: 0;
  top: 0.1rem;
  color: var(--accent-strong);
  font-weight: 700;
}

.callout-card {
  margin-top: 2.5rem;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 2.25rem;
  box-shadow: var(--shadow);
}

.callout-card h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-family: "Space Grotesk", "Inter", sans-serif;
}

.stack-title {
  font-family: "Space Grotesk", "Inter", sans-serif;
  margin-top: 0;
  margin-bottom: 1rem;
}

.skill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.skill-pill {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 0.6rem 1.15rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.skill-pill:hover {
  border-color: var(--accent-strong);
  transform: translateY(-3px);
}

.projects {
  background: var(--bg-soft);
}

.project-card {
  background: var(--surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-strong);
}

.project-card img {
  height: 220px;
  object-fit: cover;
}

.project-body {
  padding: 1.85rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex: 1;
}

.project-body h3 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  margin: 0;
}

.project-body p {
  color: var(--text-muted);
  margin: 0;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.project-tag {
  font-size: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  background: var(--bg-soft);
  color: var(--text-muted);
}

.project-note {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.contact {
  background: var(--bg);
}

.contact-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 2.5rem;
  box-shadow: var(--shadow);
}

.form-label {
  font-weight: 600;
  color: var(--text-primary);
}

.form-control {
  border-radius: var(--radius-sm);
  border: 1.4px solid var(--border);
  background: transparent;
  color: var(--text-primary);
  padding: 0.85rem 1rem;
}

.form-control:focus {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
  background: var(--surface-strong);
  color: var(--text-primary);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-hint {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.alert-sent {
  border-radius: var(--radius-sm);
  border: none;
  background: rgba(45, 212, 191, 0.2);
  color: var(--text-primary) !important;
}

.alert-sent .btn-close {
  filter: invert(0.8);
}

.social-list {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 0.75rem;
  margin-top: 2rem;
}

.social-link {
  width: 48px;
  height: 48px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.social-link:hover,
.social-link:focus {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: #ffffff;
  transform: translateY(-3px);
}

.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 1.75rem 0;
  text-align: center;
}

.footer p {
  color: var(--text-primary);
}

@media (max-width: 1199.98px) {
  .hero-floating-card.top {
    right: -6%;
  }

  .hero-floating-card.bottom {
    left: -4%;
  }
}

@media (max-width: 991.98px) {
  body {
    scroll-padding-top: 88px;
  }

  .hero {
    padding: 140px 0 100px;
  }

  .hero-visual {
    margin-top: 2.5rem;
    padding: 1.75rem;
  }

  .hero-floating-card {
    position: relative;
    margin-top: 1.1rem;
    inset: auto;
  }

  .hero-floating-card.bottom {
    margin-bottom: 0;
  }

  .metrics-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }

  .navbar-collapse {
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
  }
}

@media (max-width: 767.98px) {
  .section {
    padding: 90px 0;
  }

  .hero {
    padding: 120px 0 80px;
  }

  .hero-actions {
    gap: 0.75rem;
  }

  .hero-meta {
    gap: 0.5rem;
  }

  .surface-card {
    padding: 1.75rem;
  }

  .contact-card {
    padding: 2rem;
  }

  .project-card img {
    height: 200px;
  }
}

@media (max-width: 575.98px) {
  .theme-toggle {
    color: var(--text-primary) !important;
  }
  .theme-toggle .label {
    font-size: 0.95rem;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}