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

:root {
  --bg: #07111f;
  --bg-soft: rgba(255, 255, 255, 0.04);
  --card: rgba(11, 20, 39, 0.82);
  --card-solid: #0f1a32;
  --border: rgba(255, 255, 255, 0.1);
  --text: #f6f8ff;
  --muted: #afbdd7;
  --primary: #60a5fa;
  --primary-strong: #3b82f6;
  --accent: #22c55e;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --radius: 22px;
  --radius-sm: 14px;
  --max-width: 1180px;
  --bg-gradient:
    radial-gradient(circle at top left, rgba(59, 130, 246, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(34, 197, 94, 0.12), transparent 22%),
    linear-gradient(180deg, #07111f 0%, #08101d 45%, #050b15 100%);
  --header-bg: rgba(5, 10, 20, 0.65);
  --nav-mobile-bg: rgba(8, 15, 28, 0.96);
  --line-soft: rgba(255, 255, 255, 0.05);
  --section-alt-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
  --surface-soft: rgba(255, 255, 255, 0.04);
  --theme-thumb-bg: linear-gradient(135deg, rgba(96, 165, 250, 0.26), rgba(59, 130, 246, 0.22));
  --kicker-color: #9ec8ff;
  --tag-text: #dfe8f8;
  --project-tag-text: #cbdcff;
  --project-meta: #8fc1ff;
  --link: #9ec8ff;
  --form-note: #9ab0cf;
  --code-text: #d8e7ff;
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #eef4ff;
  --bg-soft: rgba(15, 23, 42, 0.05);
  --card: rgba(255, 255, 255, 0.9);
  --card-solid: #ffffff;
  --border: rgba(15, 23, 42, 0.14);
  --text: #0f172a;
  --muted: #475569;
  --shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
  --bg-gradient:
    radial-gradient(circle at top left, rgba(59, 130, 246, 0.14), transparent 32%),
    radial-gradient(circle at top right, rgba(34, 197, 94, 0.1), transparent 26%),
    linear-gradient(180deg, #eef4ff 0%, #f8fbff 50%, #edf3ff 100%);
  --header-bg: rgba(255, 255, 255, 0.78);
  --nav-mobile-bg: rgba(255, 255, 255, 0.97);
  --line-soft: rgba(15, 23, 42, 0.1);
  --section-alt-bg: linear-gradient(180deg, rgba(15, 23, 42, 0.03), rgba(15, 23, 42, 0.015));
  --surface-soft: rgba(15, 23, 42, 0.04);
  --theme-thumb-bg: linear-gradient(135deg, rgba(96, 165, 250, 0.22), rgba(59, 130, 246, 0.16));
  --kicker-color: #1d4ed8;
  --tag-text: #1e293b;
  --project-tag-text: #334155;
  --project-meta: #1e40af;
  --link: #1d4ed8;
  --form-note: #475569;
  --code-text: #0f172a;
  color-scheme: light;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg-gradient);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

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

img {
  max-width: 100%;
}

.container {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
}

.bg-blur {
  position: fixed;
  inset: auto;
  border-radius: 999px;
  filter: blur(90px);
  opacity: 0.4;
  z-index: -1;
}

.bg-blur-1 {
  width: 280px;
  height: 280px;
  left: -70px;
  top: 120px;
  background: rgba(96, 165, 250, 0.25);
}

.bg-blur-2 {
  width: 360px;
  height: 360px;
  right: -120px;
  top: 520px;
  background: rgba(34, 197, 94, 0.18);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--line-soft);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.22), rgba(34, 197, 94, 0.18));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.nav a {
  color: var(--muted);
  font-weight: 600;
  transition: color 0.25s ease;
}

.nav a:hover,
.nav a:focus {
  color: var(--text);
}

.theme-switch {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: center;
  min-width: 170px;
  padding: 3px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-soft);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.theme-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: calc((100% - 6px) / 3);
  height: calc(100% - 6px);
  border-radius: 999px;
  background: var(--theme-thumb-bg);
  border: 1px solid rgba(96, 165, 250, 0.32);
  transition: transform 0.25s ease;
}

.theme-switch[data-mode="light"] .theme-thumb {
  transform: translateX(0%);
}

.theme-switch[data-mode="system"] .theme-thumb {
  transform: translateX(100%);
}

.theme-switch[data-mode="dark"] .theme-thumb {
  transform: translateX(200%);
}

.theme-option {
  position: relative;
  z-index: 1;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 32px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--muted);
  transition: color 0.2s ease;
}

.theme-option[aria-current="true"] {
  color: var(--text);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  padding: 0;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
  transition: 0.25s ease;
}

.hero {
  padding: 5rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--kicker-color);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
}

.hero h1 {
  font-size: clamp(2.3rem, 4vw, 4.75rem);
  line-height: 1.04;
  letter-spacing: -0.045em;
  margin: 1rem 0 1.2rem;
  max-width: 12ch;
}

.hero-text {
  max-width: 63ch;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 2rem 0 1.6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  border-radius: 999px;
  padding: 0.95rem 1.3rem;
  font-weight: 700;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  border: 1px solid transparent;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-sm {
  padding: 0.7rem 1rem;
  font-size: 0.95rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: white;
  box-shadow: 0 15px 30px rgba(59, 130, 246, 0.22);
}

.btn-secondary,
.btn-outline {
  background: var(--surface-soft);
  border-color: var(--border);
  color: var(--text);
}

.btn-full {
  width: 100%;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.stat-card,
.info-card,
.skills-panel,
.project-card,
.process-card,
.contact-card,
.contact-form-card,
.cta-box,
.hero-card {
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}

.stat-card {
  padding: 1rem;
}

.stat-card strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.stat-card span {
  color: var(--muted);
  font-size: 0.94rem;
}

.hero-panel {
  display: flex;
  justify-content: center;
}

.hero-card {
  width: 100%;
  overflow: hidden;
}

.terminal-top {
  display: flex;
  gap: 0.45rem;
  padding: 1rem 1rem 0;
}

.terminal-top span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
}

.hero-card pre {
  margin: 0;
  padding: 1.25rem 1.5rem 1.5rem;
  overflow: auto;
  color: var(--code-text);
  font-size: 0.96rem;
}

.trust {
  padding-top: 0;
}

.trust-row {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 1rem 0 2rem;
  border-top: 1px solid var(--line-soft);
}

.trust-row p {
  margin: 0;
  color: var(--muted);
  font-weight: 600;
}

.trust-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.trust-tags span,
.skill-list span,
.project-tag,
.filter-btn {
  border: 1px solid var(--border);
  background: var(--surface-soft);
  border-radius: 999px;
}

.trust-tags span,
.skill-list span {
  padding: 0.65rem 0.95rem;
  color: var(--tag-text);
  font-size: 0.92rem;
}

.section {
  padding: 5.5rem 0;
}

.section-alt {
  background: var(--section-alt-bg);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 2rem;
}

.section-heading.left {
  margin-bottom: 1.4rem;
}

.section-heading h2 {
  font-size: clamp(1.9rem, 3.2vw, 3rem);
  line-height: 1.12;
  letter-spacing: -0.04em;
  margin: 0.85rem 0;
}

.section-heading p {
  color: var(--muted);
  margin: 0;
}

.card-grid,
.projects-grid,
.process-grid {
  display: grid;
  gap: 1.2rem;
}

.card-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.info-card {
  padding: 1.4rem;
}

.info-card h3,
.skills-panel h3,
.project-card h3,
.process-card h3,
.contact-form-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
}

.info-card p,
.project-card p,
.process-card p,
.contact-form-card p,
.value-list li {
  color: var(--muted);
}

.icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-size: 1.35rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.16), rgba(34, 197, 94, 0.12));
  border: 1px solid var(--border);
}

.skills-layout,
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.skills-panel {
  padding: 1.5rem;
}

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

.value-list {
  margin: 0;
  padding-left: 1.2rem;
}

.value-list li + li {
  margin-top: 0.7rem;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.filter-btn {
  padding: 0.7rem 1rem;
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
}

.filter-btn.active {
  background: linear-gradient(135deg, rgba(96,165,250,0.22), rgba(59,130,246,0.2));
  border-color: rgba(96,165,250,0.35);
}

.projects-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-card {
  padding: 1.4rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.project-card:hover {
  transform: translateY(-3px);
  border-color: rgba(96,165,250,0.24);
}

.project-tag {
  display: inline-flex;
  padding: 0.45rem 0.8rem;
  color: var(--project-tag-text);
  font-size: 0.8rem;
  margin-bottom: 0.9rem;
}

.project-meta {
  color: var(--project-meta);
  font-size: 0.92rem;
  font-weight: 600;
}

.process-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.process-card {
  padding: 1.45rem;
}

.process-card span {
  display: inline-flex;
  margin-bottom: 1rem;
  font-weight: 800;
  color: var(--kicker-color);
  font-size: 1.1rem;
}

.cta-banner {
  padding-top: 0;
}

.cta-box {
  padding: 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}

.contact-cards {
  display: grid;
  gap: 0.95rem;
}

.contact-card,
.contact-form-card {
  padding: 1.35rem;
}

.contact-card strong {
  display: block;
  margin-bottom: 0.45rem;
}

.contact-card a {
  color: var(--link);
}

.lead-form {
  display: grid;
  gap: 1rem;
  margin-top: 1.2rem;
}

.lead-form label {
  display: grid;
  gap: 0.5rem;
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  border-radius: 14px;
  padding: 0.95rem 1rem;
  border: 1px solid var(--border);
  background: var(--surface-soft);
  color: var(--text);
  font: inherit;
}

input::placeholder,
textarea::placeholder {
  color: #8ea2c0;
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(96,165,250,0.28);
  border-color: rgba(96,165,250,0.36);
}

.form-note {
  font-size: 0.92rem;
  color: var(--form-note);
}

.site-footer {
  padding: 1.5rem 0 2.4rem;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--muted);
  border-top: 1px solid var(--line-soft);
  padding-top: 1.25rem;
}

.hidden {
  display: none !important;
}

@media (max-width: 1080px) {
  .hero-grid,
  .skills-layout,
  .contact-grid,
  .projects-grid,
  .process-grid,
  .card-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero h1 {
    max-width: 15ch;
  }
}

@media (max-width: 780px) {
  .nav-toggle {
    display: block;
  }

  .nav {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% + 0.8rem);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: var(--nav-mobile-bg);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
  }

  .theme-switch {
    width: 100%;
    max-width: 280px;
  }

  .nav.open {
    display: flex;
  }

  .hero,
  .section {
    padding: 4.2rem 0;
  }

  .hero-grid,
  .skills-layout,
  .contact-grid,
  .projects-grid,
  .process-grid,
  .card-grid,
  .hero-stats {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: none;
  }

  .cta-box {
    flex-direction: column;
    align-items: flex-start;
  }
}