/* =========================================
   CEPHOLOTECH — Main Stylesheet
   ========================================= */

:root {
  --bg:        #080808;
  --bg-card:   #111111;
  --bg-nav:    rgba(8, 8, 8, 0.92);
  --accent:    #a0a0a0;
  --accent-2:  #d0d0d0;
  --text:      #e8e8e8;
  --text-muted:#888888;
  --border:    #222222;
  --radius:    12px;
  --transition:0.25s ease;
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* CONTAINER */
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }

/* ---- NAVBAR ---- */
.nav-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}
.nav-container {
  max-width: 1100px; margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.nav-logo .logo-img { height: 42px; width: auto; opacity: .175; }
.logo-name {
  font-family: 'Barlow', sans-serif;
  font-size: 1.1rem;
  font-weight: 300;
  color: var(--text);
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
}
.logo-name strong {
  font-weight: 800;
  letter-spacing: 0.06em;
  margin-left: 0.35em;
}
.nav-links {
  display: flex; gap: 2rem;
}
.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  font-family: 'Outfit', sans-serif;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text); }
.nav-toggle {
  display: none; background: none; border: none;
  color: var(--text); font-size: 1.4rem; cursor: pointer;
}

/* ---- HERO ---- */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 8rem 1.5rem 4rem;
  max-width: 1100px; margin: 0 auto;
  position: relative;
  gap: 2rem;
}
.hero-content { flex: 1; z-index: 1; }
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}
.accent {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  color: var(--text-muted);
  font-size: 1.1rem;
  font-family: 'Outfit', sans-serif;
  max-width: 520px;
  margin-bottom: 2rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }


/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--transition), transform var(--transition), border-color var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #1a1a1a;
  border: none;
}
.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }
.btn-outline {
  border-color: var(--border);
  color: var(--text-muted);
  background: transparent;
}
.btn-outline:hover { border-color: var(--accent); color: var(--text); }
.btn-full { width: 100%; justify-content: center; }

/* ---- SECTIONS ---- */
.section { padding: 5rem 0; }
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 0.6rem;
}
.section-sub {
  color: var(--text-muted);
  font-size: 1rem;
  font-family: 'Outfit', sans-serif;
  margin-bottom: 3rem;
}

/* ---- PRODUCTS ---- */
.products { background: #0e0e0e; }
.product-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.product-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition);
}
.product-card:hover { border-color: var(--accent); }
.product-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.product-left {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.product-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  color: var(--text-muted);
  flex-shrink: 0;
  overflow: hidden;
}
.product-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-info h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.35rem; }
.product-info p { color: var(--text-muted); font-size: 0.9rem; max-width: 560px; }
.product-card .btn { white-space: nowrap; flex-shrink: 0; }

@media (max-width: 600px) {
  .product-card { flex-direction: column; align-items: flex-start; }
  .product-card .btn { width: 100%; text-align: center; justify-content: center; }
  .product-icon { display: none; }
  .product-left { gap: 0; }
}

/* ---- REPOS ---- */
.repos { background: #080808; }
.repo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}
.repo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.45s ease, transform 0.45s ease, border-color var(--transition);
}
.repo-card.visible { opacity: 1; transform: translateY(0); }
.repo-card:hover { border-color: var(--accent); }
.repo-card-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-muted);
}
.repo-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  font-family: 'Outfit', monospace;
}
.repo-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-family: 'Outfit', sans-serif;
  flex: 1;
}
.repo-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}
.repo-tags { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.repo-tag {
  font-size: 0.72rem;
  font-family: 'Outfit', sans-serif;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.15rem 0.6rem;
}
.repo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.8rem;
  font-family: 'Outfit', sans-serif;
  color: var(--text-muted);
  transition: color var(--transition);
}
.repo-link:hover { color: var(--text); }

/* ---- ABOUT + CONTACT ---- */
.about-contact { background: #0e0e0e; }
.about-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.about-text p {
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-size: 0.975rem;
  font-family: 'Outfit', sans-serif;
}
.about-list {
  margin-top: 1.5rem;
  display: flex; flex-direction: column; gap: 0.6rem;
}
.about-list li { font-size: 0.95rem; color: var(--text-muted); font-family: 'Outfit', sans-serif; }
.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); }
.form-group input,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.7rem 1rem;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition);
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #444444; }
.form-stack {
  position: relative;
}
.form-loading,
.form-success {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  text-align: center;
  color: var(--text-muted);
  font-family: 'Outfit', sans-serif;
  background: var(--bg-card);
  border-radius: var(--radius);
}
.form-loading[hidden],
.form-success[hidden] { display: none; }

.spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

.form-success svg { color: #a0a0a0; }
.form-success h3 { font-size: 1.2rem; font-weight: 700; color: var(--text); }
.form-success p { color: var(--text-muted); font-size: 0.95rem; }

.form-status {
  text-align: center;
  font-size: 0.9rem;
  min-height: 1.2rem;
  color: var(--accent);
}

/* ---- FOOTER ---- */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.footer-logo { height: 32px; }
.footer-copy { color: var(--text-muted); font-size: 0.85rem; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: var(--text-muted); font-size: 0.85rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--text); }
.footer .container img {opacity: 0.15;}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .hero { flex-direction: column; text-align: center; padding-top: 5rem; padding-bottom: 2rem; min-height: unset; }
  .hero-sub { max-width: 100%; }
  .hero-actions { justify-content: center; }
  .hero-graphic { display: none; }

  .section { padding: 2.5rem 0; }

  .nav-links { display: none; flex-direction: column; gap: 1rem; }
  .nav-links.open {
    display: flex; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg-nav); padding: 1.5rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-toggle { display: block; }

  .about-contact-grid { grid-template-columns: 1fr; gap: 1.5rem; }

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

  .footer-inner { flex-direction: column; text-align: center; }
}