:root {
  --bg: #0B0E1A;
  --card: #131829;
  --card-border: #232A42;
  --text: #EDEFF7;
  --muted: #8891A8;
  --accent-orange: #FF7A45;
  --accent-purple: #8B5CF6;
  --success: #34D399;
  --error: #F87171;
  --font-display: "Syne", sans-serif;
  --font-body: "Space Grotesk", sans-serif;
}

[data-theme="light"] {
  --bg: #F5F4F8;
  --card: #FFFFFF;
  --card-border: #E2E0EC;
  --text: #1A1830;
  --muted: #666284;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  transition: background 0.3s ease, color 0.3s ease;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.topbar-controls { display: flex; gap: 0.5rem; }

.chip-btn {
  background: var(--card);
  border: 1px solid var(--card-border);
  color: var(--text);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  cursor: pointer;
}

main { max-width: 1080px; margin: 0 auto; padding: 2rem; }

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
  padding: 2rem 0 4rem;
}

.hero-copy h1 {
  font-family: var(--font-display);
  font-size: 2.6rem;
  line-height: 1.15;
  font-weight: 700;
  margin: 0 0 1.2rem;
  max-width: 22ch;
}

.lede {
  color: var(--muted);
  max-width: 52ch;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.feature-list li {
  position: relative;
  padding-left: 1.3rem;
  color: var(--text);
  font-size: 0.95rem;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-purple));
}

.pipeline-svg { width: 100%; height: auto; }

.pipeline-track { stroke: var(--card-border); stroke-width: 2; }

.pipeline-pulse {
  fill: var(--accent-orange);
  opacity: 0;
}

.pipeline-pulse.active {
  animation: travel 1.4s ease-in-out;
}

@keyframes travel {
  0% { opacity: 1; cy: 55; }
  100% { opacity: 0; cy: 345; }
}

.pipeline-node circle {
  fill: var(--card);
  stroke: var(--card-border);
  stroke-width: 1.5;
  transition: stroke 0.3s ease, fill 0.3s ease;
}

.pipeline-node.active circle {
  stroke: var(--accent-orange);
  fill: color-mix(in srgb, var(--accent-orange) 15%, var(--card));
}

.pipeline-node.done circle {
  stroke: var(--success);
}

.node-glyph { fill: var(--text); font-size: 1.1rem; }

.node-label {
  fill: var(--muted);
  font-family: var(--font-body);
  font-size: 0.85rem;
}

.form-section { padding: 1rem 0 4rem; display: flex; justify-content: center; }

.contact-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 2.2rem;
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
}

.contact-card h2 {
  font-family: var(--font-display);
  font-weight: 700;
  margin: 0 0 1.4rem;
}

.contact-card label {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.contact-card input,
.contact-card textarea {
  background: transparent;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
  resize: vertical;
}

.contact-card input:focus,
.contact-card textarea:focus {
  outline: none;
  border-color: var(--accent-purple);
}

.contact-card input.invalid,
.contact-card textarea.invalid {
  border-color: var(--error);
}

.field-error {
  color: var(--error);
  font-size: 0.8rem;
  min-height: 1.1em;
  margin-bottom: 0.7rem;
}

.file-input-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.3rem;
}

.contact-card input[type="file"] {
  border: none;
  padding: 0;
  flex-shrink: 0;
  color: var(--muted);
  font-size: 0.85rem;
  width: 140px;
  overflow: hidden;
  white-space: nowrap;
}

.contact-card input[type="file"]::file-selector-button {
  background: var(--card);
  border: 1px solid var(--card-border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.5rem 0.8rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  cursor: pointer;
  margin-right: 0.5rem;
}

.file-name {
  font-size: 0.82rem;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

#submit-btn {
  margin-top: 0.6rem;
  padding: 0.85rem;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-purple));
  color: #fff;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
}

#submit-btn:disabled { opacity: 0.6; cursor: progress; }

.status-log {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-height: 1.2em;
}

.status-log .ok { color: var(--success); }
.status-log .err { color: var(--error); }

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  padding: 2rem 0 3rem;
}

footer p { margin: 0.3rem 0; }

footer .copyright {
  font-size: 0.75rem;
  opacity: 0.75;
}

/* Pantalla de entrada (gate) */
.gate-main {
  max-width: 640px;
  margin: 0 auto;
  padding: 4rem 2rem;
  text-align: center;
}

.gate-hero h1 {
  font-family: var(--font-display);
  font-size: 2.2rem;
  margin: 0 0 0.6rem;
}

.gate-options {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 2.2rem 0 1.5rem;
}

.gate-card {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  text-align: left;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 1.4rem 1.6rem;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.2s ease;
}

.gate-card:hover { border-color: var(--accent-purple); }

.gate-card-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

.gate-card-desc { color: var(--muted); font-size: 0.9rem; }

.gate-admin-link { font-size: 0.82rem; }
.gate-admin-link a { color: var(--muted); }

/* Select en formularios (panel admin) */
.contact-card select {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
}

.contact-card select:focus {
  outline: none;
  border-color: var(--accent-purple);
}

.admin-user { opacity: 0.8; cursor: default; }

/* Chips de destinatarios (panel admin) */
.chip-input {
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 0.5rem 0.6rem;
  margin-bottom: 0.3rem;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.3rem;
}

.chip-list:empty { margin-bottom: 0; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: color-mix(in srgb, var(--accent-purple) 18%, var(--card));
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 0.25rem 0.5rem 0.25rem 0.7rem;
  font-size: 0.82rem;
}

.chip-remove {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
  padding: 0;
}

.chip-input input {
  border: none;
  background: transparent;
  width: 100%;
  padding: 0.3rem 0.1rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
}

.chip-input input:focus { outline: none; }

.send-card { max-width: 560px; }

.outlook-status {
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 0.6rem 0.9rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
}

.outlook-status p { margin: 0.2rem 0; }
.outlook-status a { color: var(--accent-purple); }

/* Badge de no leídos (link "Bandeja" en el panel admin) */
.unread-badge {
  display: inline-block;
  margin-left: 0.35rem;
  background: var(--accent-orange);
  color: #fff;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.05rem 0.45rem;
}

/* Bandeja de entrada: listado */
.inbox-card, .inbox-detail-card { max-width: 640px; }

.inbox-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.inbox-item a {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 0.9rem 1.1rem;
  transition: border-color 0.2s ease;
}

.inbox-item a:hover { border-color: var(--accent-purple); }

.inbox-item.unread a { border-color: var(--accent-orange); }

.inbox-item-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.6rem;
}

.inbox-item-name {
  font-family: var(--font-display);
  font-weight: 700;
}

.inbox-item.unread .inbox-item-name::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-orange);
  margin-right: 0.45rem;
}

.inbox-item-date { color: var(--muted); font-size: 0.78rem; white-space: nowrap; }
.inbox-item-email { color: var(--muted); font-size: 0.85rem; }
.inbox-item-preview { font-size: 0.88rem; opacity: 0.85; }

/* Bandeja de entrada: detalle */
.inbox-detail-email { color: var(--muted); margin: 0 0 0.1rem; }
.inbox-detail-date { color: var(--muted); font-size: 0.8rem; margin: 0 0 1.2rem; }

.inbox-detail-body {
  white-space: pre-wrap;
  line-height: 1.6;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  margin-bottom: 1.2rem;
}

.inbox-detail-attachments {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 1.2rem;
}

.inbox-detail-attachments ul { margin: 0.3rem 0 0; padding-left: 1.2rem; }

.field-error-label { display: block; margin-bottom: 0.1rem; }

.inbox-detail-actions { display: flex; gap: 0.6rem; }

.chip-btn.danger { color: var(--error); border-color: var(--error); }

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; }
  .pipeline { order: -1; max-width: 220px; margin: 0 auto; }
}

@media (prefers-reduced-motion: reduce) {
  .pipeline-pulse.active { animation: none; opacity: 0; }
}