:root {
  --color-primary: #1561ad;
  --color-accent: #fc5226;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7fb;
  --color-text: #2a2e37;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.3em;
  font-weight: 500;
  transition: color 0.2s ease;
}

a:hover {
  color: #0f4a83;
}

a:focus-visible {
  outline: 3px solid rgba(21, 97, 173, 0.35);
  outline-offset: 4px;
  border-radius: 6px;
}

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

#preloader {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

#preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 6px solid rgba(21, 97, 173, 0.2);
  border-top-color: var(--color-primary);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

header {
  background: var(--color-primary);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 6px 18px rgba(12, 43, 79, 0.2);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  gap: 24px;
  position: relative;
}

.logo {
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.08em;
}

#main-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

#main-nav a {
  color: #fff;
  text-decoration: none;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
  font-weight: 600;
}

#main-nav a:hover,
#main-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  outline: none;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  padding: 6px;
}

.hamburger:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.6);
  outline-offset: 4px;
  border-radius: 6px;
}

.hamburger span {
  width: 26px;
  height: 3px;
  background: currentColor;
  border-radius: 10px;
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.section {
  padding: 60px 20px;
  scroll-margin-top: 100px;
}

.section:nth-of-type(even) {
  background: var(--color-bg-alt);
}

.section-content {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  gap: 24px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.75rem;
  color: rgba(42, 46, 55, 0.6);
  margin: 0;
}

.intro .section-content {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
  gap: 40px;
}

.intro-text h1 {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  color: var(--color-primary);
}

.intro-text p {
  margin: 0;
}

.role {
  font-family: "Source Code Pro", "Fira Code", monospace;
  font-size: 1.2rem;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.cursor::after {
  content: "|";
  animation: blink 1s steps(2, start) infinite;
}

@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  50.01%,
  100% {
    opacity: 0;
  }
}

.cta-row {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.cta-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 999px;
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0 18px 36px -20px rgba(252, 82, 38, 0.8);
  transition: background 0.2s ease, transform 0.2s ease;
}

.cta-link:hover,
.cta-link:focus-visible {
  background: #e0481f;
  transform: translateY(-1px);
}

.cta-link:focus-visible {
  outline: 3px solid rgba(252, 82, 38, 0.45);
  outline-offset: 4px;
}

.cta-link--ghost {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid currentColor;
  box-shadow: none;
}

.cta-link--ghost:hover,
.cta-link--ghost:focus-visible {
  background: rgba(21, 97, 173, 0.1);
  color: var(--color-primary);
}

.intro-photo {
  display: flex;
  justify-content: center;
}

.profile-avatar {
  width: clamp(180px, 35vw, 220px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #fefefe, rgba(255, 255, 255, 0))
      top left,
    linear-gradient(135deg, rgba(21, 97, 173, 0.95), rgba(12, 43, 79, 0.95));
  background-blend-mode: screen, normal;
  box-shadow: 0 24px 50px rgba(12, 43, 79, 0.35);
  display: grid;
  place-items: center;
  font-family: "Source Code Pro", "Fira Code", monospace;
  font-size: clamp(2.4rem, 6vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: #fdfdfd;
  text-transform: uppercase;
}

.section h2 {
  margin: 0;
  font-size: 2rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.section h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 60px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 999px;
}

.section p {
  margin: 0;
  max-width: 70ch;
}

.section ul {
  margin: 0;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.5rem;
}

.projects-list {
  list-style: disc;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.service {
  background: #fff;
  border: 1px solid rgba(21, 97, 173, 0.12);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 20px 40px -28px rgba(16, 38, 66, 0.5);
  display: grid;
  gap: 0.75rem;
}

.service h3 {
  margin: 0;
  color: var(--color-primary);
}

#blog p {
  font-style: italic;
  color: rgba(42, 46, 55, 0.7);
}

.contact-lead {
  max-width: 60ch;
}

.contact-email {
  font-weight: 600;
}

.contact-email a {
  text-decoration: none;
  color: var(--color-accent);
}

.contact-email a:hover,
.contact-email a:focus-visible {
  text-decoration: underline;
  color: var(--color-accent);
}

form {
  display: grid;
  gap: 16px;
  max-width: 480px;
}

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

form input,
form textarea {
  padding: 12px;
  border-radius: 10px;
  border: 1px solid rgba(21, 97, 173, 0.3);
  font: inherit;
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

form input:focus,
form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(21, 97, 173, 0.15);
}

form textarea {
  resize: vertical;
  min-height: 140px;
}

form button {
  justify-self: flex-start;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

form button:hover {
  background: #e0481f;
  transform: translateY(-1px);
}

form button:active {
  transform: translateY(0);
}

footer {
  background: var(--color-primary);
  color: #fff;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px;
  text-align: center;
  display: grid;
  gap: 8px;
}

footer p {
  margin: 0;
}

@media (max-width: 900px) {
  .header-inner {
    flex-wrap: wrap;
  }

  #main-nav {
    position: absolute;
    inset: 100% 0 auto 0;
    background: var(--color-primary);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 24px;
    gap: 0.5rem;
    box-shadow: 0 20px 40px rgba(12, 43, 79, 0.3);
    display: none;
  }

  #main-nav.open {
    display: flex;
  }

  #main-nav a {
    padding: 0.75rem 1rem;
    border-radius: 10px;
  }

  .hamburger {
    display: flex;
  }
}

@media (max-width: 600px) {
  .section-content {
    justify-items: center;
    text-align: center;
  }

  .section h2::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .section ul {
    justify-items: start;
    text-align: left;
  }

  .intro-text h1 {
    font-size: clamp(2.2rem, 8vw, 3rem);
  }

  .cta-row {
    justify-content: center;
  }

  form {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}