/* ── Reset & Base ── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:root {
  --black: #000;
  --white: #fff;
  --bg: #e8e0d4;
  --pink: #ff6b9d;
  --yellow: #ffd23f;
  --blue: #4ecdc4;
  --green: #a8e6cf;
  --purple: #c3aed6;
  --orange: #ff9a56;
  --red: #ff6b6b;
  --border: 3px solid var(--black);
  --border-thick: 4px solid var(--black);
  --shadow: 5px 5px 0 var(--black);
  --shadow-sm: 3px 3px 0 var(--black);
  --shadow-lg: 8px 8px 0 var(--black);
  --radius: 0;
  --max-width: 1100px;
  --section-gap: 2rem;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui,
    sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 60px;
  overflow-x: hidden;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--black);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

::selection {
  background: var(--yellow);
  color: var(--black);
}

/* ── Layout ── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: var(--section-gap) 0;
}

.section-heading {
  font-size: 2.25rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  display: inline-block;
  background: var(--yellow);
  padding: 0.15em 0.4em;
  border: var(--border);
  box-shadow: var(--shadow-sm);
  max-width: 100%;
  overflow-wrap: break-word;
  word-break: break-word;
}

/* ── Header / Nav ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: var(--border-thick);
}

.site-header.scrolled {
  box-shadow: 0 4px 0 var(--black);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--black);
  background: var(--pink);
  padding: 0.1em 0.45em;
  border: var(--border);
  box-shadow: var(--shadow-sm);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.4em 0.7em;
  border: 2px solid transparent;
}

.lang-toggle {
  display: flex;
  margin-left: 0.25rem;
  border: var(--border);
}

.lang-btn {
  background: var(--white);
  border: none;
  color: var(--black);
  font-size: 0.8rem;
  font-weight: 800;
  padding: 0.35em 0.7em;
  cursor: pointer;
  font-family: var(--font);
}
.lang-btn.active {
  background: var(--black);
  color: var(--white);
}
.lang-btn + .lang-btn {
  border-left: 2px solid var(--black);
}

.nav-toggle {
  display: none;
  margin-left: auto;
  background: var(--yellow);
  border: var(--border);
  color: var(--black);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.15em 0.4em;
  font-weight: 900;
  box-shadow: var(--shadow-sm);
  line-height: 1;
}

/* ── Hero ── */
.hero {
  padding-top: calc(64px + 4rem);
  padding-bottom: 4rem;
}

.hero-inner {
  border: var(--border-thick);
  background: var(--white);
  box-shadow: var(--shadow-lg);
  padding: 3rem;
  position: relative;
}

.hero-inner::before {
  content: "";
  position: absolute;
  top: -12px;
  right: -12px;
  width: 80px;
  height: 80px;
  background: var(--pink);
  border: var(--border);
  z-index: -1;
}

.hero-inner::after {
  content: "";
  position: absolute;
  bottom: -12px;
  left: -12px;
  width: 60px;
  height: 60px;
  background: var(--blue);
  border: var(--border);
  z-index: -1;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.hero .tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 800;
  background: var(--pink);
  display: inline-block;
  padding: 0.15em 0.4em;
  border: var(--border);
  margin-bottom: 0.5rem;
}

.hero .subtitle {
  font-size: 1.15rem;
  font-weight: 600;
  font-family: var(--font-mono);
  margin-bottom: 0.5rem;
}

.hero .location {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  margin-bottom: 2rem;
  color: #555;
}

.hero-columns {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
  margin-top: 1rem;
}

.hero-left {
  flex: 1;
}

.hero-about {
  flex: 0 0 380px;
  background: var(--bg);
  border: var(--border);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  align-self: flex-start;
}

.hero-about p {
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}
.hero-about p:last-child {
  margin-bottom: 0;
}

.hero-title {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.hero-photo {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border: var(--border);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  background: var(--yellow);
  color: var(--black);
  font-weight: 900;
  font-size: 1rem;
  font-family: var(--font);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border: var(--border);
  box-shadow: var(--shadow);
  cursor: pointer;
}

.btn-email {
  background: var(--pink);
}

.btn-call {
  background: var(--blue);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-icons {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--black);
}

/* ── About ── */
.about-content {
  max-width: 720px;
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 2rem;
}

.about-content p {
  margin-bottom: 1rem;
  font-size: 1.05rem;
}
.about-content p:last-child {
  margin-bottom: 0;
}

/* ── Testimonials ── */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.testimonial-card {
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 2rem;
  border-left: 6px solid var(--green);
}

.testimonial-quote {
  font-size: 1.05rem;
  font-style: italic;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.testimonial-author {
  font-style: normal;
}

.testimonial-author strong {
  display: block;
  font-size: 1rem;
  font-weight: 900;
}

.testimonial-role {
  display: block;
  font-size: 0.85rem;
  color: #555;
  margin-bottom: 0.25rem;
}

.testimonial-author a {
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

/* ── Skills ── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}

.skill-card:nth-child(1) {
  border-top: 6px solid var(--pink);
}
.skill-card:nth-child(2) {
  border-top: 6px solid var(--blue);
}
.skill-card:nth-child(3) {
  border-top: 6px solid var(--yellow);
}

.skill-card h3 {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  background: var(--bg);
  padding: 0.3rem 0.65rem;
  font-size: 0.85rem;
  font-weight: 700;
  font-family: var(--font-mono);
  border: 2px solid var(--black);
}

.domain-tag {
  background: var(--green);
}

/* ── Projects ── */
.projects-label {
  font-size: 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  margin-top: 2.5rem;
  background: var(--black);
  color: var(--white);
  display: inline-block;
  padding: 0.25em 0.6em;
}
.projects-label:first-of-type {
  margin-top: 0;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.project-card:nth-child(1) {
  border-left: 6px solid var(--pink);
}
.project-card:nth-child(2) {
  border-left: 6px solid var(--blue);
}
.project-card:nth-child(3) {
  border-left: 6px solid var(--orange);
}
.project-card:nth-child(4) {
  border-left: 6px solid var(--purple);
}
.project-card:nth-child(5) {
  border-left: 6px solid var(--green);
}

.project-card h3 {
  font-size: 1.3rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.project-card p {
  font-size: 0.95rem;
  flex: 1;
  margin-bottom: 1rem;
  color: #333;
}

.project-card .tag {
  display: inline-block;
  background: var(--yellow);
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 2px solid var(--black);
  align-self: flex-start;
}

/* ── Experience Timeline ── */
.timeline {
  position: relative;
  padding-left: 2.5rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--black);
}

.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}
.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-2.5rem - 3px);
  top: 1.5rem;
  width: 16px;
  height: 16px;
  background: var(--pink);
  border: 3px solid var(--black);
  transform: translateX(calc(-50% + 2px)) rotate(45deg);
}

.timeline-item:nth-child(2)::before {
  background: var(--blue);
}
.timeline-item:nth-child(3)::before {
  background: var(--yellow);
}

.timeline-date {
  font-size: 0.8rem;
  font-weight: 800;
  font-family: var(--font-mono);
  background: var(--black);
  color: var(--white);
  display: inline-block;
  padding: 0.15em 0.5em;
  margin-bottom: 0.5rem;
}

.timeline-item h3 {
  font-size: 1.1rem;
  font-weight: 900;
  margin-bottom: 0.15rem;
}

.timeline-location {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 0.5rem;
  display: block;
}

.timeline-item p:last-child {
  font-size: 0.95rem;
  color: #333;
}

/* ── Articles ── */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.article-card {
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  display: block;
}

.article-card:nth-child(1) {
  border-bottom: 6px solid var(--red);
}
.article-card:nth-child(2) {
  border-bottom: 6px solid var(--purple);
}
.article-card:nth-child(3) {
  border-bottom: 6px solid var(--blue);
}
.article-card:nth-child(4) {
  border-bottom: 6px solid var(--green);
}
.article-card:nth-child(5) {
  border-bottom: 6px solid var(--yellow);
}
.article-card:nth-child(6) {
  border-bottom: 6px solid var(--pink);
}
.article-card:nth-child(7) {
  border-bottom: 6px solid var(--orange);
}
.article-card:nth-child(8) {
  border-bottom: 6px solid var(--blue);
}

.article-card h3 {
  font-size: 1.05rem;
  font-weight: 900;
  margin-bottom: 0.35rem;
}

.article-card p {
  font-size: 0.9rem;
  color: #555;
}

.article-card .arrow {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 1.2rem;
  font-weight: 900;
}

/* ── Contact ── */
.contact-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.contact-content .section-heading {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: fit-content;
}

.contact-content p {
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

.contact-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: var(--border);
  background: var(--white);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  box-shadow: var(--shadow);
}

.contact-link:first-child {
  background: var(--pink);
}
.contact-link:last-child {
  background: var(--blue);
}

/* ── Footer ── */
.site-footer {
  padding: 2rem 0;
  border-top: var(--border-thick);
  text-align: center;
  font-size: 0.85rem;
  font-weight: 700;
  background: var(--white);
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Mobile ── */
@media (max-width: 768px) {
  :root {
    --section-gap: 1.25rem;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1rem;
    gap: 0.25rem;
    border-bottom: var(--border-thick);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s, opacity 0.25s;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    font-size: 1rem;
    padding: 0.6em;
    display: block;
    text-align: center;
  }

  .lang-toggle {
    margin-left: 0;
    justify-content: center;
  }

  .hero-columns {
    flex-direction: column;
    gap: 1.5rem;
  }

  .hero-about {
    flex: none;
    max-width: 100%;
  }

  .btn span {
    display: none;
  }

  .btn {
    padding: 0.85rem;
  }

  .hero-inner {
    padding: 2rem 1rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-photo {
    width: 72px;
    height: 72px;
  }

  .hero-inner::before {
    width: 50px;
    height: 50px;
    top: -8px;
    right: -8px;
  }
  .hero-inner::after {
    width: 40px;
    height: 40px;
    bottom: -8px;
    left: -8px;
  }

  .projects-grid,
  .skills-grid {
    grid-template-columns: 1fr;
  }

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

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

  .contact-links {
    flex-direction: column;
    align-items: center;
  }
}