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

:root {
  --bg:        #0d0d0d;
  --surface:   #161616;
  --border:    #252525;
  --text:      #f0f0f0;
  --muted:     #6b6b6b;
  --accent:    #ffffff;
  --radius:    8px;
  --font:      'Inter', sans-serif;
  --max-w:     1100px;
  --section-gap: 120px;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  background-image: radial-gradient(circle, #222222 1px, transparent 1px);
  background-size: 22px 22px;
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

img, video {
  display: block;
  width: 100%;
}

/* ─── Scroll reveal ──────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Side-slide variants for project cards */
.reveal--left  { transform: translateX(-80px); }
.reveal--right { transform: translateX(80px);  }

.reveal--left.revealed,
.reveal--right.revealed {
  transform: translateX(0);
}

/* ─── Nav ────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 60px;
  transition: background 0.3s ease, border-bottom 0.3s ease;
}

.nav--scrolled {
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav__logo {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text);
}

.nav__links {
  display: flex;
  gap: 36px;
}

.nav__links a {
  font-size: 0.85rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

.nav__links a:hover {
  color: var(--text);
}

/* ─── Nav actions ────────────────────────────────────────── */
.nav__actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav__icon {
  color: var(--muted);
  display: flex;
  align-items: center;
  transition: color 0.2s;
}

.nav__icon:hover {
  color: var(--text);
}

.nav__lang {
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--muted);
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  padding: 4px 10px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.nav__lang:hover {
  color: var(--text);
  border-color: #444;
}

/* ─── Hero ───────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 140px 60px 80px;
  position: relative;
}

.hero__content {
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.hero__label {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 32px;
}

.hero__name {
  font-size: clamp(3rem, 9vw, 7.5rem);
  font-weight: 600;
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 20px;
}

.hero__role {
  font-size: 1.05rem;
  color: var(--muted);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.hero__bio {
  font-size: 1rem;
  color: var(--muted);
  max-width: 420px;
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
}

.hero__scroll-indicator span {
  display: block;
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--muted), transparent);
  margin: 0 auto;
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%   { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50%  { opacity: 1; transform: scaleY(1); transform-origin: top; }
  100% { opacity: 0; transform: scaleY(1); transform-origin: bottom; }
}

/* ─── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 13px 28px;
  background: var(--text);
  color: var(--bg);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  transition: opacity 0.2s, transform 0.2s;
}

.btn:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--outline:hover {
  border-color: var(--text);
  opacity: 1;
}

/* ─── Sections ───────────────────────────────────────────────── */
.section {
  padding: var(--section-gap) 60px;
}

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

.section__header {
  max-width: var(--max-w);
  margin: 0 auto 64px;
}

.section__label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* ─── Projects grid ──────────────────────────────────────────── */
.projects-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.25s, transform 0.25s;
}

.project-card:hover {
  border-color: #444;
  transform: translateY(-4px);
}

.project-card__media {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #111;
}

.project-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  /* Remove this block once you add real media */
}

.project-card__media img,
.project-card__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.project-card:hover .project-card__media img,
.project-card:hover .project-card__media video {
  transform: scale(1.03);
}

.project-card__info {
  padding: 28px;
}

.project-card__badge {
  display: inline-block;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}

.project-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
}

.project-card__desc {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 18px;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.project-card__tags span {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--muted);
}

.project-card__links {
  display: flex;
  gap: 20px;
}

.link-arrow {
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.03em;
  transition: color 0.2s;
}

.link-arrow:hover {
  color: var(--text);
}

/* ─── About ──────────────────────────────────────────────────── */
.about {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 80px;
  align-items: start;
}

.about__text p {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 18px;
  max-width: 520px;
}

.about__text .section__label {
  margin-bottom: 12px;
}

.about__text .section__title {
  margin-bottom: 28px;
}

.about__text .btn--outline {
  margin-top: 8px;
}

.about__skills h3 {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 20px;
}

.skills-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.skills-list li {
  font-size: 0.9rem;
  color: var(--text);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.01em;
}

.skills-list li:first-child {
  border-top: 1px solid var(--border);
}

/* ─── Contact ────────────────────────────────────────────────── */
.contact {
  max-width: var(--max-w);
  margin: 0 auto;
  text-align: center;
}

.contact .section__label {
  display: inline-block;
  margin-bottom: 12px;
}

.contact .section__title {
  margin-bottom: 20px;
}

.contact__sub {
  font-size: 0.95rem;
  color: var(--muted);
  margin-bottom: 40px;
  line-height: 1.8;
}

.contact__social {
  display: flex;
  justify-content: center;
  gap: 28px;
  margin-top: 28px;
}

.contact__social a {
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.contact__social a:hover {
  color: var(--text);
}

/* ─── Contact form ───────────────────────────────────────────── */
.contact__form {
  width: 100%;
  max-width: 560px;
  margin: 0 auto 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: left;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.form-group input,
.form-group textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.9rem;
  padding: 12px 16px;
  outline: none;
  transition: border-color 0.2s;
  resize: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #404040;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: #444;
}

.contact__submit {
  width: 100%;
  text-align: center;
  margin-top: 4px;
  cursor: pointer;
  border: none;
  font-family: var(--font);
}

.contact__submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.form-feedback {
  font-size: 0.85rem;
  text-align: center;
  margin-top: 4px;
}

.form-feedback--success { color: #6ee7b7; }
.form-feedback--error   { color: #fca5a5; }

/* ─── Footer ─────────────────────────────────────────────────── */
.footer {
  padding: 32px 60px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer p {
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .nav {
    padding: 20px 28px;
  }

  .hero {
    padding: 130px 28px 70px;
  }

  .section {
    padding: 80px 28px;
  }

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

  .about {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

@media (max-width: 560px) {
  .nav__links {
    gap: 16px;
  }

  .nav__actions {
    gap: 12px;
  }

  .nav__icon svg {
    width: 16px;
    height: 16px;
  }

  .hero__name {
    font-size: clamp(2.5rem, 14vw, 3.5rem);
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}