:root {
  color-scheme: dark;
  font-family: "Courier New", Courier, monospace;
  background: #08121f;
  color: #c8f7ff;
  font-size: 16px;
  line-height: 1.6;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  text-rendering: geometricPrecision;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #08121f;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  image-rendering: pixelated;
}

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

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #06111e;
  border-bottom: 4px solid #23cffd;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.site-nav a {
  color: #9ff5ff;
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 8px;
  border: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a:focus {
  border-color: #23cffd;
}

.hero {
  padding: 72px 0 52px;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 32px;
  align-items: center;
}

.eyebrow {
  color: #7aedff;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  font-size: 0.78rem;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.7rem);
  margin: 0;
  line-height: 1.05;
  letter-spacing: 0.06em;
  text-shadow: 0 0 2px rgba(35, 204, 253, 0.35);
}

.hero h1 span {
  color: #23cffd;
}

.hero p {
  max-width: 680px;
  margin: 22px 0 30px;
  color: #b7f0ff;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 3px solid #23cffd;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition:
    background-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
  background: rgba(35, 207, 253, 0.12);
}

.button-primary {
  background: #0c263c;
  color: #c8f7ff;
}

.button-secondary {
  background: transparent;
  color: #23cffd;
}

.hero-card {
  background: #081b2d;
  border: 4px solid #23cffd;
  padding: 28px;
}

.hero-label {
  font-size: 0.9rem;
  color: #7aedff;
  margin-bottom: 18px;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.hero-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.hero-card li {
  color: #c8f7ff;
  background: rgba(35, 207, 253, 0.06);
  border: 2px solid #23cffd;
  padding: 14px;
}

.section {
  padding: 64px 0;
}

.section-alt {
  background: #071424;
}

.section-inner {
  display: grid;
  gap: 28px;
}

.section-header {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.section-header span {
  color: #23cffd;
  font-size: 1.05rem;
  font-weight: 800;
}

.section-header h2 {
  margin: 0;
  font-size: 2rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.section-header p {
  margin: 10px 0 0;
  color: #9de7ff;
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.info-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.info-list li {
  background: #0a2032;
  border: 3px solid #23cffd;
  padding: 18px;
}

.cards-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  padding: 24px;
  background: #07131f;
  border: 4px solid #23cffd;
}

.card h3 {
  margin: 0 0 16px;
  font-size: 1.2rem;
  letter-spacing: 0.05em;
}

.card p {
  margin: 0;
  color: #a0efff;
}

.card-meta {
  margin-top: 16px;
  color: #23cffd;
  font-size: 0.95rem;
}

.skill-card {
  padding: 18px 16px;
  background: #06203a;
  color: #9ff5ff;
  font-weight: 700;
  text-align: center;
  border: 3px solid #23cffd;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.case-card .card-link {
  display: inline-block;
  margin-top: 18px;
  color: #23cffd;
  font-weight: 700;
  text-decoration: none;
}

.video-preview {
  display: grid;
  gap: 18px;
}

.video-card {
  background: #062338;
  color: #c8f7ff;
  border: 4px solid #23cffd;
  padding: 24px;
}

.video-frame {
  margin-top: 18px;
  min-height: 220px;
  background: #0b2b45;
  display: grid;
  place-items: center;
  text-align: center;
  color: #9ff5ff;
  border: 3px solid #23cffd;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.contact-card {
  padding: 24px;
  background: #07131f;
  border: 4px solid #23cffd;
}

.contact-card h3 {
  margin: 0 0 12px;
}

.contact-card a {
  color: #23cffd;
  text-decoration: none;
}

.site-footer {
  padding: 24px 0 40px;
  color: #9ff5ff;
}

.site-footer p {
  margin: 0;
  text-align: center;
}

@media (max-width: 900px) {
  .hero-content,
  .split-grid,
  .cards-grid,
  .skills-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 56px;
  }
}

@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .site-nav {
    gap: 12px;
  }

  .hero-card {
    padding: 22px;
  }

  .button {
    width: 100%;
  }
}

.chatbot {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.chatbot-toggle {
  background: #23cffd;
  color: #08121f;
  border: none;
  border-radius: 999px;
  padding: 14px 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
}

.chatbot-panel {
  width: min(420px, calc(100vw - 40px));
  max-height: 72vh;
  background: rgba(8, 18, 31, 0.96);
  border: 3px solid #23cffd;
  backdrop-filter: blur(14px);
  box-shadow: 0 22px 40px rgba(0, 0, 0, 0.35);
  border-radius: 24px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.chatbot-panel.hidden {
  display: none;
}

.chatbot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  border-bottom: 1px solid rgba(35, 207, 253, 0.16);
}

.chatbot-header strong {
  display: block;
  font-size: 1rem;
  letter-spacing: 0.08em;
}

.chatbot-header p {
  margin: 6px 0 0;
  color: #a0f3ff;
  font-size: 0.88rem;
}

.chatbot-close {
  width: 38px;
  height: 38px;
  border: none;
  background: #08121f;
  color: #23cffd;
  border-radius: 999px;
  font-size: 1.35rem;
  cursor: pointer;
}

.chatbot-messages {
  flex: 1;
  padding: 16px 18px;
  overflow-y: auto;
  display: grid;
  gap: 14px;
}

.chatbot-empty,
.chatbot-message {
  background: rgba(35, 207, 253, 0.06);
  border: 2px solid rgba(35, 207, 253, 0.15);
  padding: 14px 18px;
  border-radius: 18px;
  color: #e6fbff;
}

.chatbot-empty {
  color: #a9e8ff;
  text-align: center;
}

.chatbot-message.user {
  align-self: flex-end;
  background: rgba(35, 207, 253, 0.18);
  border-color: rgba(35, 207, 253, 0.3);
}

.chatbot-message.bot {
  align-self: flex-start;
}

.chatbot-message p {
  margin: 0;
  white-space: pre-wrap;
}

.chatbot-message small {
  display: block;
  margin-top: 10px;
  color: #94e8ff;
  font-size: 0.82rem;
  opacity: 0.88;
}

.chatbot-form {
  display: flex;
  gap: 10px;
  padding: 16px 18px 20px;
  border-top: 1px solid rgba(35, 207, 253, 0.16);
}

.chatbot-input {
  flex: 1;
  min-width: 0;
  border: 2px solid rgba(35, 207, 253, 0.22);
  background: rgba(255, 255, 255, 0.04);
  color: #c8f7ff;
  padding: 14px 16px;
  border-radius: 14px;
  outline: none;
}

.chatbot-input:focus {
  border-color: #23cffd;
}

.chatbot-submit {
  border: none;
  background: #23cffd;
  color: #08121f;
  border-radius: 14px;
  padding: 14px 18px;
  font-weight: 700;
  cursor: pointer;
}

.chatbot-expand {
  display: block;
  margin-top: 10px;
  background: none;
  border: 2px solid rgba(35, 207, 253, 0.3);
  color: #23cffd;
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 0.85rem;
  cursor: pointer;
}
.chatbot-expand:hover {
  background: rgba(35, 207, 253, 0.1);
}

@media (max-width: 540px) {
  .chatbot {
    right: 12px;
    bottom: 12px;
    width: 100%;
    align-items: stretch;
  }

  .chatbot-panel {
    width: 100%;
    max-height: 80vh;
    border-radius: 20px;
  }
}