/**
 * SpiderChat — Landing Page (index)
 * Misma paleta y tipografia que el resto de la app
 */

/* ── Reset de body para el index ────────────────────────────────────── */

.index-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow: hidden;
}

/* Fondo con gradiente sutil */
.index-page::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(163,0,0,0.08) 0%, transparent 65%),
    radial-gradient(ellipse at 80% 80%, rgba(163,0,0,0.04) 0%, transparent 60%);
}

/* ── Nav ────────────────────────────────────────────────────────────── */

.index-nav {
  position: relative; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 1.5rem;
  height: var(--header-height, 60px);
  border-bottom: 1px solid var(--border);
  background: rgba(var(--bg-primary-rgb), 0.85);
  backdrop-filter: blur(14px);
  flex-shrink: 0;
}

.index-nav-actions {
  display: flex; align-items: center; gap: 0.6rem;
}

/* Reutiliza .chat-header-brand, .chat-header-title, .chat-header-logo del chat.css
   pero re-declaramos por si no carga chat.css aquí */
.chat-header-brand {
  display: flex; align-items: center; gap: 0.6rem;
  text-decoration: none;
}
.chat-header-logo { height: 28px; object-fit: contain; }
.chat-header-title {
  font-family: var(--font-head);
  font-size: 1.3rem; font-weight: 900;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--off-white);
}
.chat-header-title .red-accent { color: var(--red); }

/* ── Hero centrado ──────────────────────────────────────────────────── */

.index-hero {
  position: relative; z-index: 1;
  flex: 1;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 3rem 1rem 2rem;
  gap: 2rem;
}

/* ── Brand / título ─────────────────────────────────────────────────── */

.index-brand {
  text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
}

.index-brand-logo {
  height: 56px; object-fit: contain;
  opacity: 0.9;
  animation: fadeIn 0.6s ease;
}

.index-title {
  font-family: var(--font-head);
  font-size: clamp(2.6rem, 7vw, 4.2rem);
  font-weight: 900; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--off-white);
  line-height: 1;
  animation: slideUp 0.5s ease;
}

.index-sub {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 2.5vw, 1.1rem);
  color: var(--text-secondary);
  margin-top: 0.25rem;
  animation: fadeIn 0.7s ease 0.1s both;
}

/* ── Input central ──────────────────────────────────────────────────── */

.index-input-wrap {
  width: 100%; max-width: 680px;
  animation: slideUp 0.5s ease 0.15s both;
}

.index-input-form {
  display: flex; align-items: flex-end; gap: 0;
  background: var(--bg-input);
  border: 1px solid var(--border);
  padding: 0.65rem 0.65rem 0.65rem 1.1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}
.index-input-form:focus-within {
  border-color: var(--red);
  box-shadow: 0 0 0 3px var(--red-glow);
}

.index-textarea {
  flex: 1;
  background: transparent; border: none; outline: none;
  color: var(--text-primary);
  font-family: var(--font-body); font-size: 0.97rem;
  line-height: 1.55; resize: none;
  min-height: 28px; max-height: 200px;
  overflow-y: auto;
}
.index-textarea::placeholder { color: var(--text-muted); }

.index-send-btn {
  flex-shrink: 0;
  width: 38px; height: 38px;
  background: var(--red); border: none; cursor: pointer;
  color: #ffffff; font-size: 0.95rem;
  display: flex; align-items: center; justify-content: center;
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
  transition: background 0.2s, box-shadow 0.2s;
}
.index-send-btn:hover { background: #c40000; box-shadow: 0 0 14px var(--red-glow); }

.index-input-hint {
  margin-top: 0.6rem; text-align: center;
  font-family: var(--font-mono);
  font-size: 0.6rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-muted);
  display: flex; align-items: center; justify-content: center; gap: 0.4rem;
}

/* ── Chips de sugerencias ────────────────────────────────────────────── */

.index-chips {
  display: flex; flex-wrap: wrap; gap: 0.6rem;
  justify-content: center;
  max-width: 680px;
  animation: fadeIn 0.6s ease 0.25s both;
}

.index-chip {
  display: inline-flex; align-items: center; gap: 0.45rem;
  font-family: var(--font-body); font-size: 0.82rem;
  color: var(--text-secondary);
  background: transparent; border: 1px solid var(--border);
  padding: 0.45rem 0.9rem; cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
  transition: all 0.18s;
}
.index-chip:hover {
  color: var(--off-white);
  border-color: rgba(163,0,0,0.5);
  background: rgba(163,0,0,0.07);
}
.index-chip i { color: var(--red); font-size: 0.78rem; }

/* ── Pills (botones de nav y modal) ─────────────────────────────────── */

.index-pill {
  display: inline-flex; align-items: center; gap: 0.45rem;
  font-family: var(--font-mono); font-size: 0.7rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.4rem 0.9rem; text-decoration: none;
  border: 1px solid transparent; cursor: pointer;
  transition: all 0.18s;
  clip-path: polygon(0 0, calc(100% - 5px) 0, 100% 5px, 100% 100%, 5px 100%, 0 calc(100% - 5px));
}
.index-pill--primary {
  background: var(--red); color: #ffffff; border-color: var(--red);
}
.index-pill--primary:hover { background: #c40000; box-shadow: 0 0 16px var(--red-glow); }
.index-pill--ghost {
  background: transparent; color: var(--text-secondary); border-color: var(--border);
}
.index-pill--ghost:hover { color: var(--red); border-color: var(--red); }
.index-pill--lg { padding: 0.65rem 1.5rem; font-size: 0.76rem; }

/* ── Modal de login ─────────────────────────────────────────────────── */

.index-modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.75); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s ease;
}
.index-modal-overlay.active { opacity: 1; pointer-events: auto; }

.index-modal {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 2.5rem 2rem;
  max-width: 420px; width: 100%;
  text-align: center;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transform: scale(0.95) translateY(8px);
  transition: transform 0.25s ease;
}
.index-modal-overlay.active .index-modal { transform: scale(1) translateY(0); }

.index-modal-icon { font-size: 2.2rem; color: var(--red); margin-bottom: 0.9rem; }

.index-modal-title {
  font-family: var(--font-head);
  font-size: 1.55rem; font-weight: 900; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--off-white); margin-bottom: 0.5rem;
}

.index-modal-sub {
  font-family: var(--font-body); font-size: 0.86rem;
  color: var(--text-secondary); line-height: 1.5; margin-bottom: 1.6rem;
}

.index-modal-actions {
  display: flex; flex-direction: column; gap: 0.7rem; align-items: center;
}

.index-modal-close {
  position: absolute; top: 0.7rem; right: 0.7rem;
  background: transparent; border: none;
  color: var(--text-muted); font-size: 1rem;
  cursor: pointer; padding: 0.3rem; transition: color 0.2s;
}
.index-modal-close:hover { color: var(--text-primary); }

/* ── Botón header de tema ───────────────────────────────────────────── */

.header-btn {
  display: flex; align-items: center; gap: 0.4rem;
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-secondary);
  background: transparent; border: 1px solid transparent;
  padding: 0.35rem 0.7rem; cursor: pointer;
  transition: all 0.2s; text-decoration: none;
}
.header-btn:hover { color: var(--red); border-color: var(--border); }

/* ── Modo claro ─────────────────────────────────────────────────────── */

[data-theme="light"] .index-modal { background: #ffffff; }
[data-theme="light"] .index-chip { border-color: rgba(163,0,0,0.15); }
[data-theme="light"] .index-input-form { background: rgba(163,0,0,0.03); }

/* ── Responsive ─────────────────────────────────────────────────────── */

@media (max-width: 600px) {
  .index-hero { padding: 2rem 1rem; gap: 1.5rem; }
  .index-brand-logo { height: 44px; }
  .index-chips { gap: 0.5rem; }
  .index-chip { font-size: 0.78rem; padding: 0.4rem 0.75rem; }
  .index-nav-actions .index-pill--ghost { display: none; }
}

@media (max-width: 380px) {
  .index-chips { flex-direction: column; align-items: center; }
  .index-chip { width: 100%; justify-content: center; }
}