/* ── Theme variables ── */
:root {
  --font: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Source Code Pro', Consolas, 'Courier New', monospace;
  --transition: 0.2s ease;
}

[data-theme="dark"] {
  --bg:            #0d0d0d;
  --bg-nav:        #0d0d0d;
  --bg-card:       #111;
  --text:          #c8ffc8;
  --text-dim:      #3a6a3a;
  --accent:        #00ff41;
  --accent-hover:  #7fff7f;
  --border:        #1a2e1a;
  --border-card:   #1f3a1f;
  --prompt:        #00ff41;
  --cursor-color:  #00ff41;
  --toggle-active: #00ff41;
  --toggle-bg:     #111;
  --footer-text:   #5a8a5a;
  --nav-link:      #5a8a5a;
  --select-bg:     #111;
  --input-bg:      #0a0a0a;
  --tag-bg:        #0a1a0a;
  --tag-text:      #4a9a4a;
}

[data-theme="light"] {
  --bg:            #f5f5f0;
  --bg-nav:        #ffffff;
  --bg-card:       #ffffff;
  --text:          #1a1a1a;
  --text-dim:      #999;
  --accent:        #005cc5;
  --accent-hover:  #003d8a;
  --border:        #e0e0e0;
  --border-card:   #ddd;
  --prompt:        #005cc5;
  --cursor-color:  #1a1a1a;
  --toggle-active: #005cc5;
  --toggle-bg:     #f0f0f0;
  --footer-text:   #666;
  --nav-link:      #595959;
  --select-bg:     #fff;
  --input-bg:      #fafafa;
  --tag-bg:        #eef3fc;
  --tag-text:      #336699;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background var(--transition), color var(--transition);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--accent-hover); }

/* ── Navbar ── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 1rem 2rem;
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}

.logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  color: var(--accent);
  transition: color var(--transition);
}
.logo:hover { color: var(--accent-hover); }
.logo svg {
  height: 28px;
  width: auto;
  display: block;
}

/* Desktop: drawer is just a normal flex row */
.nav-drawer {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex: 1;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

.nav-links a {
  font-size: 1rem;
  color: var(--nav-link);
  transition: color var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

/* ── Theme toggle ── */
.theme-toggle {
  margin-left: auto;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.toggle-track {
  display: flex;
  align-items: center;
  width: 52px;
  height: 28px;
  border-radius: 14px;
  padding: 3px;
  transition: background var(--transition), border-color var(--transition);
}

[data-theme="dark"]  .toggle-track { background: #111; border: 1.5px solid var(--accent); }
[data-theme="light"] .toggle-track { background: #4a90d9; border: 1.5px solid #4a90d9; }

.toggle-knob {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), background var(--transition);
  flex-shrink: 0;
}

[data-theme="dark"]  .toggle-knob { background: var(--accent); transform: translateX(22px); }
[data-theme="light"] .toggle-knob { background: #ffd700;       transform: translateX(0); }

.skull-icon {
  width: 14px;
  height: 14px;
  display: block;
}

[data-theme="light"] .knob-dark { display: none; }

.no-transition * { transition: none !important; }

/* ── Hamburger (mobile only) ── */
.hamburger {
  display: none;
  margin-left: auto;
  background: none;
  border: 1px solid var(--border);
  color: var(--accent);
  font-family: var(--font);
  font-size: 0.85rem;
  padding: 0.3rem 0.6rem;
  cursor: pointer;
  flex-shrink: 0;
}

/* ── Shared ── */
main { flex: 1; }

.prompt {
  font-size: 0.82rem;
  color: var(--prompt);
  margin-bottom: 1.5rem;
}

.dim { color: var(--text-dim); }
.accent { color: var(--accent); }

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 6rem 2rem 4rem;
  position: relative;
}

.hero-content { max-width: 820px; width: 100%; }

.hero-title {
  font-size: clamp(2.2rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--prompt);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.ellipsis { color: var(--accent); }

.hero-sub {
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  color: var(--accent);
  min-height: 2.4rem;
  margin-bottom: 2rem;
}

.cursor {
  display: inline-block;
  color: var(--cursor-color);
  animation: blink 1s step-end infinite;
  margin-left: 1px;
}

.blink-cursor {
  display: inline-block;
  color: var(--prompt);
  animation: blink 1.2s step-end infinite;
}

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

.prompt-bottom { margin-top: 2.5rem; }

.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  transition: color var(--transition);
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.scroll-hint:hover {
  color: var(--accent);
}

/* ── Services ── */
.services {
  padding: 6rem 2rem;
}

.section-inner { max-width: 1100px; margin: 0 auto; }
.section-narrow { max-width: 680px; }

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color var(--transition);
}
.service-card:hover { border-color: var(--accent); }

.card-header {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.card-icon {
  font-size: 0.7rem;
  color: var(--text-dim);
}

.card-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
}

.service-card p {
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--text);
  opacity: 0.8;
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
}

.card-tags li {
  font-size: 0.7rem;
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--border-card);
}

.card-link {
  font-size: 0.82rem;
  color: var(--accent);
  margin-top: auto;
}
.card-link:hover { color: var(--accent-hover); }

/* ── Inner pages (about, contact) ── */
.page-section {
  padding: 8rem 2rem 5rem;
  min-height: 100vh;
}

.page-title {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.2rem;
  letter-spacing: -0.02em;
}

.page-lead {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text);
  opacity: 0.75;
  max-width: 620px;
  margin-bottom: 3rem;
}

/* ── About layout ── */
.about-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 4rem;
  align-items: start;
}

.about-photo-wrap {
  position: sticky;
  top: 6rem;
}

.photo-canvas {
  width: 100%;
  display: block;
}

/* ── About blocks ── */
.about-block {
  margin-top: 2rem;
}

.about-block.first {
  margin-top: 1.5rem;
}

.about-block p,
.about-block a { font-size: 0.9rem; line-height: 1.9; text-align: justify; }

.about-block .prompt { margin-bottom: 0.8rem; }

.badge-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
  align-items: center;
}

.htb-badge { height: 80px; }

.placeholder { font-size: 0.8rem; color: var(--text-dim); }

@media (max-width: 800px) {
  .about-layout { grid-template-columns: 1fr; }
  .about-photo-wrap { display: none; }
}

/* ── Contact layout ── */
.contact-layout {
  display: flex;
  align-items: center;
  gap: 4rem;
}

.contact-info {
  flex: 1;
  min-width: 0;
}

.contact-form-wrap {
  flex: 0 0 480px;
  min-width: 0;
}

@media (max-width: 860px) {
  .contact-layout {
    flex-direction: column;
    gap: 2rem;
  }
  .contact-info { position: static; }
  .contact-form-wrap { flex: none; width: 100%; }
}

/* ── Privacy checkbox ── */
.privacy-check-label {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.82rem;
  color: var(--text);
  opacity: 0.85;
  cursor: pointer;
  line-height: 1.5;
}

.privacy-check-label input[type="checkbox"] {
  margin-top: 0.15rem;
  flex-shrink: 0;
  accent-color: var(--accent);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

/* ── Contact form ── */
.contact-form {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.78rem;
  color: var(--prompt);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--input-bg);
  border: 1px solid var(--border-card);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.88rem;
  padding: 0.65rem 0.9rem;
  outline: none;
  width: 100%;
  transition: border-color var(--transition);
  appearance: none;
  -webkit-appearance: none;
}

.form-group select {
  background: var(--select-bg);
  cursor: pointer;
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-dim);
  opacity: 0.7;
}

.form-group textarea { resize: vertical; min-height: 130px; }

/* hCaptcha can't be re-rendered with a new theme after initial load.
   Invert the iframe in dark mode — gives a natural dark appearance. */
[data-theme="dark"] #hcaptcha-widget iframe {
  filter: invert(0.88) hue-rotate(180deg);
}

.btn-submit {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: var(--bg);
  font-family: var(--font);
  font-size: 0.9rem;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  transition: all var(--transition);
  width: fit-content;
}
.btn-submit:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}
.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-message {
  font-size: 0.82rem;
  min-height: 1.2rem;
}
.form-message.success { color: var(--accent); }
.form-message.error   { color: #ff4444; }

/* ── Footer ── */
footer {
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--footer-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

footer a { color: var(--footer-text); }
footer a:hover { color: var(--accent); }

/* ── Responsive ── */
@media (max-width: 640px) {
  /* Hamburger visible, drawer hidden until toggled open */
  .navbar { padding: 0.75rem 1rem; gap: 1rem; }
  .hamburger { display: block; }
  .nav-drawer {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-end;
    gap: 0;
    background: var(--bg-nav);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 1.2rem 1.2rem;
  }
  .nav-drawer.open { display: flex; }
  .nav-links { flex-direction: column; gap: 0; width: 100%; }
  .nav-links a { display: block; padding: 0.75rem 0; font-size: 1rem; opacity: 0.85; text-align: right; }
  .theme-toggle { margin-left: 0; margin-top: 1rem; }

  /* Hero: more top padding for two-row nav */
  .hero { padding: 7rem 1rem 3rem; }
  .hero-sub { font-size: clamp(1rem, 5vw, 1.3rem); }

  /* Services */
  .services { padding: 3.5rem 1rem; }
  .service-grid { grid-template-columns: 1fr; }

  /* Inner pages */
  .page-section { padding: 7rem 1.5rem 3rem; }

  /* About: layout already handled at 800px breakpoint */

  /* Contact */
  .btn-submit { width: 100%; text-align: center; }
}