:root {
  --bg: #0b1220;
  --bg-alt: #101a2e;
  --panel: #131f38;
  --border: #223050;
  --text: #e7ecf5;
  --text-dim: #9fb0c9;
  --accent: #4fd1c5;
  --accent-dark: #9a4c20;
  --accent-dim: #2c7a72;
  --navy-ink: #0f1b2e;
  --radius: 10px;
  --max-w: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* Header / nav */
header {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 18, 32, 0.9);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(6px);
}
nav.wrap { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--text); letter-spacing: 0.01em; }
.brand span { color: var(--accent); }
.nav-links { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--text-dim); font-size: 0.95rem; }
.nav-links a.active, .nav-links a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero {
  position: relative;
  padding: 100px 0 72px;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(79, 209, 197, 0.14) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.9), transparent 85%);
  pointer-events: none;
}
.hero .wrap { position: relative; }
.hero h1 { font-size: 2.5rem; line-height: 1.2; margin: 0 0 18px; max-width: 780px; text-wrap: balance; }
.hero p.lede { font-size: 1.15rem; color: var(--text-dim); max-width: 640px; margin: 0 0 32px; }
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 20px;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #06231f;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: var(--radius);
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
}
.btn:hover { background: #6fe0d5; text-decoration: none; }
.btn.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); margin-left: 12px; }
.btn.secondary:hover { border-color: var(--accent); }
.btn.small { padding: 6px 14px; font-size: 0.85rem; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

section { padding: 72px 0; }
section.alt { background: var(--bg-alt); }
h2 { font-size: 1.7rem; margin: 0 0 8px; text-wrap: balance; }
.section-lede { color: var(--text-dim); margin: 0 0 44px; max-width: 620px; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.card h3 { margin: 0 0 12px; font-size: 1.1rem; }
.card ul { color: var(--text-dim); padding-left: 18px; margin: 0; }
.card ul li { margin-bottom: 6px; }
.tag { display: inline-block; font-size: 0.75rem; color: var(--accent); border: 1px solid var(--accent-dim); border-radius: 999px; padding: 3px 10px; margin-bottom: 14px; }

/* --- Flipping services carousel --- */
.flip-stage {
  perspective: 1400px;
  max-width: 720px;
  margin: 0 auto;
}
.flip-card {
  position: relative;
  height: 280px;
}
.flip-card__inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  transform-style: preserve-3d;
}
.flip-card.is-flipped .flip-card__inner { transform: rotateY(180deg); }
.flip-card__face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.flip-card__face--back { transform: rotateY(180deg); }
.flip-card__index { color: var(--accent); font-weight: 700; font-size: 0.8rem; letter-spacing: 0.08em; margin-bottom: 10px; }
.flip-card__face h3 { font-size: 1.4rem; margin: 0 0 14px; }
.flip-card__face p, .flip-card__face ul { color: var(--text-dim); margin: 0; }
.flip-card__face ul { padding-left: 20px; }
.flip-card__face ul li { margin-bottom: 6px; }
.flip-dots { display: flex; justify-content: center; gap: 8px; margin-top: 22px; }
.flip-dots button {
  width: 8px; height: 8px; border-radius: 999px; border: none; padding: 0;
  background: var(--border); cursor: pointer;
}
.flip-dots button.is-active { background: var(--accent); width: 22px; transition: width 0.3s; }
@media (prefers-reduced-motion: reduce) {
  .flip-card__inner { transition: none; }
}

.cloud-strip {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.cloud-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 0.85rem;
  color: var(--text-dim);
}
.cloud-chip strong { color: var(--text); }

/* Case study / detail cards */
.case-study { border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel); padding: 32px; margin-bottom: 28px; }
.case-study h3 { margin-top: 0; }
.case-study .meta { color: var(--text-dim); font-size: 0.9rem; margin-bottom: 16px; }
.case-study > p, .case-study > ul { color: var(--text-dim); }
.hero-compact { padding: 64px 0 40px; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-md { margin-top: 18px; }
.mt-lg { margin-top: 24px; }
.text-dim-block { color: var(--text-dim); margin: 0; }
.case-study dl { display: grid; grid-template-columns: 140px 1fr; gap: 10px 16px; margin: 0; }
.case-study dt { color: var(--text-dim); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em; }
.case-study dd { margin: 0; color: var(--text); }
.honesty-note { font-size: 0.85rem; color: var(--text-dim); border-left: 2px solid var(--accent-dim); padding-left: 14px; margin-top: 16px; }

/* Contact */
.contact-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.contact-list li { display: flex; gap: 12px; align-items: baseline; }
.contact-list .label { width: 100px; color: var(--text-dim); font-size: 0.9rem; flex-shrink: 0; }

form.stacked label { display: block; font-weight: 600; margin: 14px 0 6px; font-size: 0.9rem; }
form.stacked input, form.stacked textarea {
  width: 100%; padding: 10px 12px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; font-size: 0.95rem; color: var(--text); font-family: inherit;
}
form.stacked textarea { min-height: 120px; resize: vertical; }
.form-status { margin-top: 14px; font-size: 0.9rem; }
.form-status.success { color: var(--accent); }
.form-status.error { color: #f28b82; }

footer { border-top: 1px solid var(--border); padding: 32px 0; color: var(--text-dim); font-size: 0.85rem; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

/* --- AI chat widget --- */
#chat-launcher {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: none;
  padding: 0;
  border: none;
  cursor: pointer;
  z-index: 50;
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s;
  overflow: hidden;
}
#chat-launcher:hover { transform: scale(1.06); }
#chat-launcher .avatar-icon { width: 58px; height: 58px; }

.avatar-icon { display: block; border-radius: 50%; flex-shrink: 0; }
.chat-head__avatar { width: 36px; height: 36px; margin-right: 4px; }

#chat-panel {
  position: fixed;
  bottom: 96px;
  right: 24px;
  width: 360px;
  max-width: calc(100vw - 32px);
  height: 480px;
  max-height: calc(100vh - 140px);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.45);
  display: none;
  flex-direction: column;
  overflow: hidden;
  z-index: 50;
}
#chat-panel.is-open { display: flex; }

.chat-head {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.chat-head__identity { display: flex; align-items: center; gap: 10px; }
.chat-head strong { font-size: 0.95rem; }
.chat-head span { display: block; font-size: 0.78rem; color: var(--text-dim); }
.chat-head button { background: none; border: none; color: var(--text-dim); cursor: pointer; font-size: 1.1rem; }

#chat-messages { flex: 1; overflow-y: auto; padding: 16px 18px; display: flex; flex-direction: column; gap: 12px; }
.chat-msg { max-width: 85%; padding: 10px 13px; border-radius: 12px; font-size: 0.88rem; line-height: 1.5; }
.chat-msg.user { align-self: flex-end; background: var(--accent-dim); color: #eafffb; }
.chat-msg.assistant { align-self: flex-start; background: var(--bg); border: 1px solid var(--border); }
.chat-msg.pending { align-self: flex-start; color: var(--text-dim); font-style: italic; }

.chat-input-row { border-top: 1px solid var(--border); padding: 12px; display: flex; gap: 8px; }
.chat-input-row input {
  flex: 1; background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 9px 12px; color: var(--text); font-size: 0.88rem; font-family: inherit;
}
.chat-input-row button {
  background: var(--accent); border: none; border-radius: 8px; padding: 0 14px; cursor: pointer;
  color: #06231f; font-weight: 700;
}
.chat-input-row button:disabled { opacity: 0.5; cursor: not-allowed; }

@media (max-width: 760px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .case-study dl { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.9rem; }
  nav.wrap { flex-direction: column; gap: 14px; align-items: flex-start; }
  #chat-panel { right: 12px; bottom: 88px; }
  #chat-launcher { right: 12px; }
}