@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Serif:ital,wght@0,400;0,600;1,400&display=swap');

:root {
  --bg: #0b0d10;
  --bg-raised: #14171c;
  --bg-inset: #0f1216;
  --line: #262b33;
  --line-soft: #1c2027;
  --ink: #e8e6df;
  --ink-dim: #8c93a0;
  --ink-faint: #565d6b;
  --amber: #ffb400;
  --amber-dim: #a87600;
  --ok: #5fd0a0;
  --err: #ff6b6b;
  --radius: 3px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(ellipse 900px 500px at 15% -10%, rgba(255, 180, 0, 0.06), transparent 60%),
    repeating-linear-gradient(180deg, rgba(255,255,255,0.012) 0px, rgba(255,255,255,0.012) 1px, transparent 1px, transparent 3px),
    var(--bg);
  color: var(--ink);
  font-family: 'IBM Plex Serif', Georgia, serif;
  min-height: 100vh;
}

::selection { background: var(--amber); color: #100b00; }

a { color: inherit; }

.mono {
  font-family: 'IBM Plex Mono', 'Consolas', monospace;
}

/* ---------- Login ---------- */

.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-box {
  width: 100%;
  max-width: 360px;
  border: 1px solid var(--line);
  background: var(--bg-raised);
  padding: 36px 32px 28px;
  border-radius: var(--radius);
  position: relative;
}

.login-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
}

.login-tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--amber);
  text-transform: uppercase;
  margin: 0 0 6px;
}

.login-box h1 {
  font-family: 'IBM Plex Serif', serif;
  font-size: 26px;
  font-weight: 600;
  margin: 0 0 28px;
  letter-spacing: -0.01em;
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 6px;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-inset);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease;
}

input[type="text"]:focus,
input[type="password"]:focus {
  border-color: var(--amber-dim);
}

.btn {
  width: 100%;
  padding: 11px 16px;
  background: var(--amber);
  color: #100b00;
  border: none;
  border-radius: var(--radius);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  margin-top: 6px;
  transition: filter 0.15s ease, transform 0.05s ease;
}

.btn:hover { filter: brightness(1.1); }
.btn:active { transform: translateY(1px); }

.flash {
  border: 1px solid #4a2a2a;
  background: rgba(255, 107, 107, 0.08);
  color: var(--err);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  padding: 10px 12px;
  border-radius: var(--radius);
  margin-bottom: 18px;
}

/* ---------- Panel ---------- */

.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(20, 23, 28, 0.7);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-shrink: 0;
}

.brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 8px var(--ok);
  display: inline-block;
}

.brand h1 {
  font-size: 17px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}

.brand .count {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
}

.search-form {
  flex: 1;
  display: flex;
  gap: 8px;
}

.search-form input {
  flex: 1;
  padding: 9px 12px;
  min-width: 0;
}

.search-form .btn {
  width: auto;
  padding: 9px 18px;
  margin-top: 0;
}

.logout-link {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 8px 12px;
  border-radius: var(--radius);
  white-space: nowrap;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.logout-link:hover { color: var(--amber); border-color: var(--amber-dim); }

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 28px 24px 60px;
}

.correo {
  border: 1px solid var(--line-soft);
  background: var(--bg-raised);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 12px;
  position: relative;
  padding-left: 24px;
  animation: reveal 0.35s ease backwards;
}

.correo::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--amber-dim);
  border-radius: var(--radius) 0 0 var(--radius);
}

@keyframes reveal {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.correo-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 4px;
  flex-wrap: wrap;
}

.remitente {
  font-weight: 600;
  font-size: 14.5px;
  color: var(--ink);
}

.fecha {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
  white-space: nowrap;
}

.asunto {
  color: var(--amber);
  font-size: 14.5px;
  margin: 2px 0 10px;
  font-style: italic;
}

.cuerpo {
  color: var(--ink-dim);
  font-size: 13.5px;
  line-height: 1.6;
  margin: 0 0 12px;
}

.cuenta {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.03em;
  color: var(--ink-dim);
  background: var(--bg-inset);
  border: 1px solid var(--line);
  padding: 3px 8px;
  border-radius: var(--radius);
}

.vacio {
  text-align: center;
  padding: 80px 20px;
  color: var(--ink-faint);
}

.vacio .glyph {
  font-size: 32px;
  margin-bottom: 12px;
  opacity: 0.5;
}

.vacio p {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
}

.paginacion {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
}

.paginacion a, .paginacion span.actual {
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--ink-dim);
}

.paginacion a:hover {
  border-color: var(--amber-dim);
  color: var(--amber);
}

.paginacion .actual {
  color: var(--amber);
  border-color: var(--amber-dim);
}

.paginacion .disabled {
  opacity: 0.3;
  pointer-events: none;
}

@media (max-width: 640px) {
  .topbar-inner { flex-wrap: wrap; }
  .search-form { order: 3; flex-basis: 100%; }
  .correo-head { flex-direction: column; }
}