:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --bg-alt: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent: #10b981;
  --border: #e2e8f0;
  --shadow: 0 20px 50px rgba(15, 23, 42, 0.08);

#top {
  scroll-margin-top: 35px;
}
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1220;
  --bg-alt: #0f172a;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --primary: #60a5fa;
  --primary-dark: #3b82f6;
  --accent: #34d399;
  --border: #1f2937;
  --shadow: 0 20px 45px rgba(2, 6, 23, 0.45);
}

p .eyebrow {
  scroll-padding-top: 90px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(247, 248, 251, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
  z-index: 10;
}

[data-theme="dark"] .site-header {
  background: rgba(11, 18, 32, 0.9);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 999px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary);
}

.nav-links {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  align-items: center;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 0.35rem 0.4rem;
  border-radius: 999px;
  box-shadow: var(--shadow);
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--muted);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  background: var(--primary-dark);
}

.btn-secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
  box-shadow: none;
}

.btn-secondary:hover {
  background: var(--bg-alt);
}

#theme-toggle.btn-secondary {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 0.55rem 1.1rem;
  font-size: 0.9rem;
}

#theme-toggle.btn-secondary:hover {
  background: var(--bg);
}

.hero {
  padding: 5rem 0 4rem;
}

.hero-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2.4rem, 3vw, 3.3rem);
  line-height: 1.15;
  margin: 0.6rem 0 1.2rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 600;
}

.lead {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 2rem;
}

.social-links {
  display: flex;
  gap: 0.75rem;
  margin-left: 0.5rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text);
  transition: all 0.3s ease;
}

.social-links a:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.social-links svg {
  width: 20px;
  height: 20px;
}


.hero-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.meta-label {
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.meta-value {
  display: block;
  color: var(--text);
  font-weight: 600;
  margin-top: 0.2rem;
}

.card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.card ul {
  padding-left: 1.2rem;
  margin: 1rem 0 1.5rem;
  color: var(--muted);
}

.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pill-group span {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--muted);
}

.section {
  padding: 4rem 0;
  scroll-margin-top: 45px;
}

.section.alt {
  background: var(--bg-alt);
}

.section-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: start;
}

.section-heading {
  margin-bottom: 2rem;
}

.section-heading p {
  color: var(--muted);
}

.highlight {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1.8rem;
}

.highlight ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.skills-grid,
.projects-grid,
.experience-grid,
.certs-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.skill-card,
.project-card,
.experience-card,
.cert-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1.6rem;
  box-shadow: var(--shadow);
}

.skill-card ul,
.experience-card ul {
  padding-left: 1.2rem;
  color: var(--muted);
}

.project-card p {
  color: var(--muted);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0 0.5rem;
}

.project-tags span {
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.project-focus {
  font-size: 0.85rem;
  color: var(--accent);
}

.timeline {
  padding-left: 1.2rem;
  color: var(--muted);
}

.experience-card .meta {
  color: var(--accent);
  font-size: 0.85rem;
  margin: 0.3rem 0 1rem;
}

.roadmap {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.roadmap h3 {
  margin-bottom: 0.5rem;
}

.roadmap ul {
  padding-left: 1.2rem;
  color: var(--muted);
}

.contact {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: center;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1rem;
}

.contact-links a {
  color: var(--primary);
  font-weight: 500;
}

.contact-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1.6rem;
}

.footer {
  padding: 1rem 0 0.75rem;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 800px) {
  .menu-toggle {
    display: inline-flex;
  }

  .nav-links {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 0.8rem;
    border-radius: 16px;
    display: none;
  }

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

  .nav-links a {
    width: 100%;
    text-align: center;
  }

  .hero {
    padding-top: 3.5rem;
  }
}

@media (max-width: 600px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }
}

/* Contact Form Styles */
.contact-section {
  max-width: 600px;
  margin: 0 auto;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin: 2rem 0;
  padding: 2rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 500;
  color: var(--text);
}

.form-group input,
.form-group textarea {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.error-message {
  color: #dc2626;
  font-size: 0.875rem;
  min-height: 1rem;
}

.submit-btn {
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.submit-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.2);
}

.submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-status {
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
  min-height: 1rem;
  transition: all 0.3s;
}

.form-status.success {
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.form-status.error {
  background: rgba(220, 38, 38, 0.1);
  color: #dc2626;
  border: 1px solid rgba(220, 38, 38, 0.3);
}

.form-status.loading {
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  border: 1px solid rgba(37, 99, 235, 0.3);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.contact-info {
  margin-top: -3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.contact-info a {
  color: var(--primary);
  margin: 0 0.5rem;
  transition: opacity 0.2s;
}

.contact-info a:hover {
  opacity: 0.8;
}