/* ========================================
   TENGU LABS — tengulabs.ai
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&display=swap');

:root {
  --green: #4AF626;
  --green-dim: #3cc41e;
  --green-dark: #2a8a15;
  --black: #000000;
  --font: 'JetBrains Mono', 'Courier New', monospace;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  font-family: var(--font);
  background: var(--black);
  color: var(--green);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--green);
  text-decoration: none;
  transition: text-shadow 0.3s ease;
}

a:hover {
  text-shadow: 0 0 8px rgba(74, 246, 38, 0.6);
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--green-dark); }

/* ---- HOME PAGE ---- */
.home {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}

.site-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-align: center;
}

.nav-menu {
  margin-top: 3rem;
  display: flex;
  gap: 4rem;
  list-style: none;
}

.nav-menu a {
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  padding: 0.5rem 0;
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--green);
  transition: width 0.3s ease;
}

.nav-menu a:hover::after {
  width: 100%;
}

/* ---- SUBPAGE LAYOUT ---- */
.page {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 2rem;
  min-height: 100vh;
}

.back-link {
  font-size: 0.85rem;
  color: var(--green-dark);
  display: inline-block;
  margin-bottom: 3rem;
}

.back-link:hover {
  color: var(--green);
}

.page-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 2rem;
}

.page-subtitle {
  font-size: 0.95rem;
  color: var(--green-dim);
  margin-bottom: 3rem;
  line-height: 1.7;
}

/* ---- PROJECTS ---- */
.project-card {
  border: 1px solid var(--green-dark);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  transition: border-color 0.3s ease;
}

.project-card:hover {
  border-color: var(--green);
}

.project-label {
  font-size: 0.7rem;
  color: var(--green-dark);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.project-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.project-desc {
  font-size: 0.85rem;
  color: var(--green-dim);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tech-tag {
  font-size: 0.65rem;
  border: 1px solid var(--green-dark);
  padding: 0.2rem 0.5rem;
  color: var(--green-dark);
}

.project-card:hover .tech-tag {
  color: var(--green-dim);
  border-color: var(--green-dim);
}

.project-link {
  font-size: 0.8rem;
}

/* ---- PROFILE ---- */
.profile-image-wrapper {
  width: 200px;
  height: 200px;
  border: 1px solid var(--green-dark);
  margin-bottom: 2rem;
}

.profile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.profile-text {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  color: var(--green-dim);
}

.profile-text .hl {
  color: var(--green);
}

.origin-block {
  border: 1px solid var(--green-dark);
  padding: 1.5rem;
  margin-top: 2rem;
}

.origin-block h3 {
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.origin-block p {
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--green-dim);
  margin-bottom: 0.75rem;
}

.origin-block .emphasis {
  color: var(--green);
  font-style: italic;
}

/* ---- CONTACT ---- */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  color: var(--green-dark);
  margin-bottom: 0.4rem;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem;
  font-family: var(--font);
  font-size: 0.85rem;
  color: var(--green);
  background: var(--black);
  border: 1px solid var(--green-dark);
  outline: none;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--green);
}

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

.form-group select {
  cursor: pointer;
  appearance: none;
}

.form-group select option {
  background: var(--black);
}

.submit-btn {
  font-family: var(--font);
  font-size: 0.85rem;
  color: var(--black);
  background: var(--green);
  border: none;
  padding: 0.75rem 2rem;
  cursor: pointer;
  letter-spacing: 0.03em;
  transition: all 0.3s ease;
}

.submit-btn:hover {
  box-shadow: 0 0 15px rgba(74, 246, 38, 0.4);
}

.social-links {
  display: flex;
  gap: 1.5rem;
  margin-top: 2rem;
}

.social-link {
  font-size: 0.8rem;
  color: var(--green-dark);
  border: 1px solid var(--green-dark);
  padding: 0.4rem 0.8rem;
  transition: all 0.3s ease;
}

.social-link:hover {
  color: var(--green);
  border-color: var(--green);
}

/* ---- FOOTER ---- */
.footer {
  border-top: 1px solid var(--green-dark);
  padding: 2rem;
  text-align: center;
  font-size: 0.7rem;
  color: var(--green-dark);
  margin-top: 4rem;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 600px) {
  .nav-menu {
    gap: 2rem;
  }

  .nav-menu a {
    font-size: 0.9rem;
  }

  .page {
    padding: 3rem 1.5rem;
  }

  .social-links {
    flex-direction: column;
    gap: 0.75rem;
  }
}