:root {
    --wp-green: #128C7E;
    --wp-green-dark: #0b5d54;
    --wp-green-light: #25D366;
    --ink: #1b2430;
    --ink-soft: #5b6572;
    --bg: #f4f6f7;
    --card-bg: #ffffff;
    --border: #e2e6e8;
    --danger: #c0392b;
    --danger-bg: #fdecea;
    --success: #1e7e34;
    --success-bg: #e9f7ef;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--ink);
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--wp-green-dark);
    color: #fff;
    padding: 16px 32px;
    flex-wrap: wrap;
    gap: 12px;
}

.topbar-brand { display: flex; align-items: center; gap: 14px; }

.brand-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--wp-green-light);
    color: #06301f;
    font-weight: 700;
    font-size: 18px;
}

.topbar-brand h1 { font-size: 18px; margin: 0; }
.topbar-brand p { font-size: 12px; margin: 2px 0 0; opacity: 0.8; }

.topbar-nav a {
    color: #fff;
    text-decoration: none;
    margin-left: 20px;
    font-size: 14px;
    opacity: 0.75;
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
}
.topbar-nav a.active,
.topbar-nav a:hover { opacity: 1; border-bottom-color: var(--wp-green-light); }

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 32px 20px 60px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 28px;
    margin-bottom: 24px;
}

.card h2 { margin-top: 0; font-size: 18px; }

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.field { display: flex; flex-direction: column; gap: 6px; }
.field-wide { grid-column: 1 / -1; }

label { font-size: 13px; font-weight: 600; color: var(--ink-soft); }

input[type="text"], input[type="url"], input[type="file"], select, textarea {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: #fff;
    color: var(--ink);
}

textarea { resize: vertical; }

.hint { font-size: 12px; color: var(--ink-soft); margin: 2px 0 0; }

.btn-primary, .btn-secondary {
    display: inline-block;
    border: none;
    border-radius: 8px;
    padding: 11px 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}
.btn-primary { background: var(--wp-green); color: #fff; }
.btn-primary:hover { background: var(--wp-green-dark); }
.btn-secondary { background: #eee; color: var(--ink); }

.btn-link { color: var(--wp-green-dark); font-size: 13px; text-decoration: none; font-weight: 600; }
.btn-link:hover { text-decoration: underline; }

.back-link { display: inline-block; margin-bottom: 16px; color: var(--ink-soft); text-decoration: none; font-size: 13px; }
.back-link:hover { color: var(--ink); }

.alert { padding: 14px 18px; border-radius: 8px; margin-bottom: 20px; font-size: 14px; }
.alert ul { margin: 6px 0 0; padding-left: 20px; }
.alert-error { background: var(--danger-bg); color: var(--danger); }
.alert-success { background: var(--success-bg); color: var(--success); }

.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th, .data-table td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}
.data-table th { color: var(--ink-soft); font-weight: 600; }
.template-cell { max-width: 320px; color: var(--ink-soft); }

.empty-state { color: var(--ink-soft); font-size: 14px; }

.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    text-transform: capitalize;
}
.status-borrador, .status-pendiente { background: #eef1f3; color: var(--ink-soft); }
.status-en_progreso { background: #fff4d6; color: #8a6300; }
.status-completada, .status-enviado, .status-entregado, .status-leido { background: var(--success-bg); color: var(--success); }
.status-pausada { background: #f0ecff; color: #5b3fd1; }
.status-fallido { background: var(--danger-bg); color: var(--danger); }

.campaign-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin: 20px 0;
}
.stat-box {
    background: var(--bg);
    border-radius: 8px;
    padding: 14px 10px;
    text-align: center;
}
.stat-value { display: block; font-size: 22px; font-weight: 700; }
.stat-label { display: block; font-size: 11px; color: var(--ink-soft); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.03em; }

.progress-bar { height: 8px; background: var(--border); border-radius: 999px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--wp-green-light); transition: width 0.3s ease; }

.campaign-actions { margin-top: 18px; }

.template-preview-box {
    background: #dcf8c6;
    border-radius: 8px;
    padding: 14px 16px;
    font-size: 14px;
    line-height: 1.5;
    max-width: 420px;
    position: relative;
}

.site-footer {
    text-align: center;
    padding: 24px;
    font-size: 13px;
    color: var(--ink-soft);
}
.site-footer a { color: var(--wp-green-dark); text-decoration: none; font-weight: 600; }
.site-footer a:hover { text-decoration: underline; }

@media (max-width: 720px) {
    .form-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .topbar { padding: 14px 18px; }
}