:root {
  --primary: #3ABEFF;
  --primary-hover: #63cbff;

  --bg: #0F172A;
  --bg-elevated: #020617;
  --bg-card: #111827;

  --border: #1F2937;

  --text: #E5E7EB;
  --muted: #9CA3AF;

  --radius-sm: 6px;
  --radius-md: 10px;

  --nav-height: 60px;
}

/* GLOBAL */

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, sans-serif;
}

* {
  box-sizing: border-box;
}


#chat {
  overflow-y: auto;
  height: calc(100vh - 180px); /* adjust based on header/input */
  display: flex;
  flex-direction: column;
}
/* NAV */


.nav {
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  height: 28px;
}

.brand-text {
  color: var(--primary);
  font-weight: bold;
}

/* PAGE */

.page-centered {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  justify-content: center;
}

.container-sm {
  width: 100%;
  max-width: 500px;
}

/* PANELS */

.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
}

/* FORM */

.form-group {
  margin-bottom: 12px;
}

input {
  width: 100%;
  padding: 10px;
  background: #0b1220;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm);
}

/* BUTTON */

button {
  background: var(--primary);
  border: none;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background: var(--primary-hover);
}

/* APP LAYOUT */

.app-shell {
  display: flex;
  height: calc(100vh - var(--nav-height));
}

.sidebar {
  width: 300px;
  border-left: 1px solid var(--border);
}

/* =========================
   HEADER / NAV
========================= */

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;

  background: #0a1628;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

/* Logo */
.logo img {
  height: 32px;   /* 🔥 KEY FIX */
  width: auto;
  opacity: 0.9;
  margin-right: 10px;
}

/* Right side */
.nav-actions {
  display: flex;
  align-items: center;
}

/* Button */
.btn {
  background: #2ea8df;
  color: white;
  padding: 8px 16px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 14px;
}

.btn:hover {
  background: #1d8ec0;
}

.hero-wrapper {
  display: flex;
  justify-content: center;   /* horizontal center */
  align-items: center;       /* vertical center */
  min-height: 80vh;          /* fills screen nicely */
  padding: 20px;
}


.hero-card {
  text-align: center;
  max-width: 700px;
  width: 100%;
}

.examples ul {
  list-style-position: inside;
  padding: 0;
}

ul {
  list-style: none;
  padding-left: 0;
}

ul li {
  margin: 6px 0;
}