/* ============================================================
   CEA LECTURA 360 — Estilos del panel profesional
   Paleta: papel cálido + tinta + verde lectura + ámbar de aviso
   Tipografía: serif de trabajo para títulos, sans para cuerpo,
   mono para datos (códigos, fechas, tiempos)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,500;8..60,600&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --paper: #F6F3EC;
  --paper-raised: #FFFFFF;
  --ink: #23272A;
  --ink-soft: #5B6265;
  --line: #DED6C4;
  --reading-green: #2F6F63;
  --reading-green-dark: #24564C;
  --amber: #B8863B;
  --red: #B4463C;
  --focus: #1D4ED8;

  --font-display: 'Source Serif 4', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
}

a { color: var(--reading-green-dark); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; margin: 0 0 .4em; }
h1 { font-size: 1.7rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }

.mono { font-family: var(--font-mono); font-size: .85em; letter-spacing: .01em; }

/* Firma visual: regla que crece de izquierda a derecha, como una
   curva de progreso lectora. Se usa bajo el título principal del panel. */
.reading-rule {
  height: 3px;
  width: 100%;
  margin: .3rem 0 1.6rem;
  background: linear-gradient(90deg, var(--reading-green) 0%, var(--reading-green) 62%, var(--line) 62%, var(--line) 100%);
  border-radius: 2px;
}

/* ---------- layout ---------- */

.app-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--reading-green-dark);
  color: #EFEDE3;
  padding: 1.5rem 1.1rem;
}

.sidebar-logo {
  display: block;
  max-width: 120px;
  height: auto;
  background: #fff;
  border-radius: 8px;
  padding: .4rem .5rem;
  margin-bottom: .8rem;
}
.sidebar .brand {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: .1rem;
}
.sidebar .brand-sub {
  font-size: .72rem;
  color: #C9E4DC;
  margin-bottom: .35rem;
  letter-spacing: .03em;
  text-transform: uppercase;
}
.sidebar .brand-tagline {
  font-size: .68rem;
  color: #C9E4DC;
  opacity: .85;
  line-height: 1.35;
  margin-bottom: 1rem;
}

.sidebar-stats {
  background: rgba(255,255,255,.08);
  border-radius: 8px;
  padding: .6rem .8rem;
  margin-bottom: 1.4rem;
}
.sidebar-stats .stat-line {
  font-size: .74rem;
  color: #DCE9E4;
  line-height: 1.7;
}
.sidebar-stats .stat-num {
  font-family: var(--font-mono);
  font-weight: 600;
  color: #fff;
  margin-right: .3rem;
}

.sidebar nav a {
  display: block;
  color: #DCE9E4;
  text-decoration: none;
  padding: .55rem .6rem;
  border-radius: 6px;
  font-size: .92rem;
  margin-bottom: .15rem;
}
.sidebar nav a:hover, .sidebar nav a.active {
  background: rgba(255,255,255,.1);
  color: #fff;
}

.sidebar .user-box {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,.15);
  font-size: .82rem;
  color: #C9E4DC;
}
.sidebar .user-box form { margin-top: .5rem; }
.sidebar .user-box button {
  background: none;
  border: 1px solid rgba(255,255,255,.3);
  color: #EFEDE3;
  padding: .35rem .7rem;
  border-radius: 5px;
  font-size: .8rem;
  cursor: pointer;
}
.sidebar .user-box button:hover { background: rgba(255,255,255,.1); }

main.content {
  padding: 2.2rem 2.6rem;
  max-width: 1100px;
}

/* ---------- cards / tables ---------- */

.card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.4rem 1.5rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.stat-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-left: 4px solid var(--reading-green);
  border-radius: 8px;
  padding: 1rem 1.2rem;
}
.stat-card .value { font-family: var(--font-display); font-size: 1.9rem; font-weight: 600; }
.stat-card .label { color: var(--ink-soft); font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .6rem .5rem; border-bottom: 1px solid var(--line); font-size: .92rem; }
th { color: var(--ink-soft); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; }
tr:hover td { background: rgba(47,111,99,.04); }

.badge { display: inline-block; padding: .15rem .55rem; border-radius: 20px; font-size: .74rem; font-weight: 500; }
.badge.activo { background: #E4F0EC; color: var(--reading-green-dark); }
.badge.archivado { background: #EFE9DA; color: var(--amber); }

/* ---------- forms ---------- */

.form-group { margin-bottom: 1.1rem; }
label { display: block; font-size: .85rem; font-weight: 500; margin-bottom: .3rem; color: var(--ink-soft); }
input[type=text], input[type=email], input[type=password], input[type=date], select, textarea {
  width: 100%;
  padding: .6rem .7rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: .95rem;
  background: #fff;
  color: var(--ink);
}
textarea { min-height: 80px; resize: vertical; }

.btn {
  display: inline-block;
  padding: .6rem 1.1rem;
  border-radius: 6px;
  border: none;
  font-size: .92rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary { background: var(--reading-green); color: #fff; }
.btn-primary:hover { background: var(--reading-green-dark); }
.btn-ghost { background: transparent; border: 1px solid var(--line); color: var(--ink); }
.btn-ghost:hover { background: rgba(0,0,0,.03); }
.btn-danger { background: transparent; color: var(--red); border: 1px solid #E6C9C4; }

.alert { padding: .8rem 1rem; border-radius: 6px; margin-bottom: 1.2rem; font-size: .9rem; }
.alert-error { background: #FBEAE8; color: var(--red); border: 1px solid #E6C9C4; }

/* ---------- login page ---------- */

.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--paper);
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 2.2rem 2rem;
}
.login-card .brand { text-align: center; margin-bottom: .2rem; }
.login-card .brand-sub { text-align: center; color: var(--ink-soft); font-size: .82rem; margin-bottom: .3rem; }
.login-card .brand-tagline { text-align: center; color: var(--ink-soft); font-size: .8rem; line-height: 1.4; margin-bottom: 1.4rem; }
.login-logo { display: block; max-width: 170px; height: auto; margin: 0 auto 1rem; }

@media (max-width: 720px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  main.content { padding: 1.2rem; }
}