:root {
  --bg: #001533;
  --bg-2: #001a40;
  --bg-mid: #0a2348;
  --panel: rgba(63, 67, 76, 0.88);
  --panel-solid: #3f434c;
  --input: #2e333c;
  --ink: #ffffff;
  --muted: #bfc4cc;
  --accent: #0055aa;
  --accent-2: #003b7c;
  --accent-deep: #001030;
  --line: rgba(255, 255, 255, 0.08);
  --bot: #1a2740;
  --user: #003b7c;
  --danger: #e07070;
  --ok: #6ecf9a;
  --shadow: 0 24px 60px rgba(0, 8, 24, 0.55);
  --font: "Manrope", system-ui, sans-serif;
  --display: "Manrope", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
}

.eyebrow {
  margin: 0 0 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--muted);
}

h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.75rem, 3.5vw, 2.4rem);
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.lede {
  margin: 0.85rem 0 0;
  color: var(--muted);
  max-width: 28rem;
  line-height: 1.5;
}

/* —— Login (estilo ADSL) —— */
.page-login {
  min-height: 100%;
  background:
    radial-gradient(ellipse 70% 55% at 50% 45%, #0c2d5e 0%, transparent 70%),
    radial-gradient(circle at 18% 22%, rgba(0, 85, 170, 0.18), transparent 28%),
    radial-gradient(circle at 82% 70%, rgba(0, 59, 124, 0.2), transparent 32%),
    linear-gradient(160deg, #000d22 0%, #001533 40%, #001a40 100%);
  position: relative;
  overflow: hidden;
}

.page-login::before,
.page-login::after {
  content: "";
  position: absolute;
  pointer-events: none;
  border-radius: 0.35rem;
  background: rgba(12, 45, 94, 0.35);
  border: 1px solid rgba(120, 160, 220, 0.08);
}

.page-login::before {
  width: min(42vw, 28rem);
  height: min(42vw, 28rem);
  top: 8%;
  left: 6%;
  transform: rotate(12deg);
  opacity: 0.55;
}

.page-login::after {
  width: min(36vw, 22rem);
  height: min(36vw, 22rem);
  right: 8%;
  bottom: 10%;
  transform: rotate(-8deg);
  opacity: 0.4;
}

.login-shell {
  min-height: 100vh;
  display: grid !important;
  grid-template-columns: 1fr !important;
  place-items: center;
  padding: 2rem 1.25rem;
  position: relative;
  z-index: 1;
}

.login-panel {
  width: min(100%, 22rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: transparent !important;
  padding: 0 !important;
  color: var(--ink);
}

.login-brand {
  margin-bottom: 1.75rem;
  display: grid;
  gap: 0.65rem;
  justify-items: center;
}

.login-logo {
  width: 3.25rem;
  height: 3.25rem;
  color: #fff;
}

.login-brand h1 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.login-brand .sub {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.login-card {
  width: 100%;
  background: var(--panel);
  backdrop-filter: blur(10px);
  border-radius: 0.15rem;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.login-form {
  margin: 0;
  display: grid;
  gap: 1.1rem;
  padding: 1.35rem 1.25rem 1.15rem;
  text-align: left;
}

.login-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
}

.login-form input {
  width: 100%;
  border: 0;
  border-radius: 0.15rem;
  padding: 0.8rem 0.9rem;
  font: inherit;
  background: var(--input);
  color: var(--ink);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.35);
}

.login-form input::placeholder {
  color: rgba(191, 196, 204, 0.45);
}

.login-form input:focus {
  outline: 1px solid rgba(0, 85, 170, 0.55);
}

.login-form button {
  width: 100%;
  border: 0;
  border-radius: 0;
  margin: 0 -1.25rem -1.15rem;
  width: calc(100% + 2.5rem);
  padding: 1rem 1.25rem;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(90deg, var(--accent-deep) 0%, var(--accent-2) 55%, #004a99 100%);
}

.login-form button:hover {
  background: linear-gradient(90deg, #001848 0%, #0055aa 100%);
}

.login-form .msg {
  margin: 0;
  text-align: center;
}

.msg {
  margin: 0;
  font-size: 0.92rem;
}
.msg.err { color: var(--danger); }
.msg.ok { color: var(--ok); }

.login-aside { display: none; }

/* —— Chat —— */
.page-chat {
  min-height: 100%;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(12, 45, 94, 0.55), transparent 60%),
    linear-gradient(180deg, #001533 0%, #000d22 100%);
  color: var(--ink);
}

.chat-top {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
  padding: 1.25rem clamp(1rem, 4vw, 2rem);
  border-bottom: 1px solid var(--line);
}

.chat-top h1 {
  font-size: 1.5rem;
  letter-spacing: 0.08em;
}
.chat-top .eyebrow { color: rgba(191, 196, 204, 0.75); }

.chat-user {
  display: flex;
  gap: 1rem;
  align-items: center;
  color: var(--muted);
}
.chat-user a {
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
}

.chat-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 2rem) 1.5rem;
  min-height: calc(100vh - 6rem);
}

.chat-hints {
  background: rgba(63, 67, 76, 0.55);
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  padding: 1rem;
}
.chat-hints h2 {
  margin: 0 0 0.85rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--muted);
}
.chat-hints ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.hint {
  width: 100%;
  border: 0;
  text-align: left;
  background: rgba(0, 21, 51, 0.45);
  color: #fff;
  border-radius: 0.25rem;
  padding: 0.7rem 0.85rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.hint:hover {
  background: rgba(0, 59, 124, 0.65);
}

.chat-main {
  display: grid;
  grid-template-rows: 1fr auto;
  min-height: 70vh;
  background: rgba(63, 67, 76, 0.72);
  color: var(--ink);
  border-radius: 0.35rem;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}

.chat-log {
  padding: 1.25rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.bubble {
  max-width: min(92%, 40rem);
  padding: 0.85rem 1rem;
  border-radius: 0.55rem;
  line-height: 1.45;
  white-space: pre-wrap;
  animation: rise 0.28s ease;
}
.bubble.bot {
  background: var(--bot);
  align-self: flex-start;
  border-bottom-left-radius: 0.15rem;
  color: #e8eef8;
}
.bubble.user {
  background: linear-gradient(135deg, var(--accent-deep), var(--accent-2));
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 0.15rem;
}
.bubble.thinking {
  opacity: 0.7;
  font-style: italic;
}

.chat-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.6rem;
  padding: 0.9rem;
  border-top: 1px solid var(--line);
  background: rgba(0, 13, 34, 0.45);
}

.chat-form input {
  width: 100%;
  border: 0;
  border-radius: 0.2rem;
  padding: 0.85rem 1rem;
  font: inherit;
  background: var(--input);
  color: var(--ink);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.35);
}

.chat-form input:focus {
  outline: 1px solid rgba(0, 85, 170, 0.55);
}

.chat-form button {
  border: 0;
  border-radius: 0.2rem;
  padding: 0.85rem 1.25rem;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(90deg, var(--accent-deep), var(--accent-2));
}

.chat-form button:hover {
  background: linear-gradient(90deg, #001848, #0055aa);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 860px) {
  .chat-layout { grid-template-columns: 1fr; }
  .page-login::before,
  .page-login::after { opacity: 0.25; }
}