:root {
    --bg-dark: #1a1a1a;
    --bg-darker: #121212;
    --bg-card: #212121;
    --accent: #25d399;
    --accent-dark: #20a151;
    --danger: #e05656;
    --warning: #e0b93c;
    --text-white: #ffffff;
    --text-gray: #b3b3b3;
    --border: rgba(255, 255, 255, 0.08);
    --font-heading: 'Roboto', sans-serif;
    --font-body: 'Open Sans', sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font-body);
    background: var(--bg-dark);
    color: var(--text-white);
    line-height: 1.5;
}

a { color: var(--accent); }

h1, h2, h3 { font-family: var(--font-heading); margin: 0 0 0.5rem; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; }

.text-muted { color: var(--text-gray); }
.text-accent { color: var(--accent); }
.small { font-size: 0.85rem; }
.mt-1 { margin-top: 0.4rem; } .mt-2 { margin-top: 0.8rem; } .mt-3 { margin-top: 1.2rem; } .mt-4 { margin-top: 1.8rem; }
.w-100 { width: 100%; }

/* Nav */
#nav-root { background: var(--bg-darker); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.nav-inner { max-width: 1100px; margin: 0 auto; padding: 0.9rem 1.25rem; display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; justify-content: space-between; }
.brand { font-family: var(--font-heading); font-weight: 700; font-size: 1.2rem; text-decoration: none; color: var(--text-white); display: flex; align-items: center; gap: 0.4rem; }
.tabs { display: flex; flex-wrap: wrap; gap: 0.3rem; }
.tab { color: var(--text-gray); text-decoration: none; padding: 0.4rem 0.7rem; border-radius: 6px; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 0.35rem; }
.tab:hover { background: rgba(255,255,255,0.06); color: var(--text-white); }
.tab.active { background: rgba(37, 211, 153, 0.15); color: var(--accent); }

/* Backup banner */
.banner { background: rgba(224, 185, 60, 0.12); border-bottom: 1px solid rgba(224, 185, 60, 0.35); padding: 0.7rem 1.25rem; display: flex; flex-wrap: wrap; gap: 0.8rem; align-items: center; justify-content: space-between; color: #f0d989; }
.banner-actions { display: flex; gap: 0.5rem; }

/* View */
#view-root { padding: 1.75rem 1.25rem 3rem; min-height: 60vh; }
.view-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.25rem; }

.subtabs { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-bottom: 1.25rem; }
.subtab { text-decoration: none; color: var(--text-gray); padding: 0.35rem 0.8rem; border: 1px solid var(--border); border-radius: 999px; font-size: 0.85rem; }
.subtab.active { background: var(--accent); color: #0c0c0c; border-color: var(--accent); font-weight: 600; }

.empty-state { color: var(--text-gray); font-style: italic; padding: 1rem 0; }

/* Cards */
.grid-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 1rem 1.1rem; }
.card-title-row { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.card-actions { margin-top: 0.9rem; display: flex; gap: 0.5rem; flex-wrap: wrap; }

.group-section { margin-bottom: 2rem; }

/* Badges */
.badge { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.4px; padding: 0.2rem 0.5rem; border-radius: 5px; font-weight: 600; }
.badge-own { background: rgba(37, 211, 153, 0.18); color: var(--accent); }
.badge-delegated { background: rgba(86, 145, 224, 0.2); color: #5691e0; }
.badge-danger { background: rgba(224, 86, 86, 0.2); color: var(--danger); }

/* Buttons */
.btn { background: rgba(255,255,255,0.08); color: var(--text-white); border: 1px solid var(--border); padding: 0.5rem 0.9rem; border-radius: 7px; cursor: pointer; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 0.4rem; text-decoration: none; }
.btn:hover { background: rgba(255,255,255,0.14); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #0c0c0c; border-color: var(--accent); font-weight: 600; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-danger { background: rgba(224, 86, 86, 0.14); color: var(--danger); border-color: rgba(224, 86, 86, 0.35); }
.btn-danger:hover { background: rgba(224, 86, 86, 0.28); }
.btn-ghost { background: transparent; }
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }
.btn-row { display: flex; gap: 0.6rem; flex-wrap: wrap; }

.file-input { background: rgba(255,255,255,0.08); border: 1px dashed var(--border); padding: 0.5rem 0.9rem; border-radius: 7px; cursor: pointer; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 0.4rem; }
.file-input:hover { background: rgba(255,255,255,0.14); }

/* Forms */
form label { display: block; margin-bottom: 0.9rem; font-size: 0.9rem; color: var(--text-gray); }
form input[type="text"], form input[type="email"], form input[type="number"],
form input[type="date"], form input[type="month"], form select {
    width: 100%; margin-top: 0.3rem; padding: 0.55rem 0.7rem; border-radius: 6px;
    border: 1px solid var(--border); background: var(--bg-darker); color: var(--text-white); font-size: 0.95rem;
}
form input:focus, form select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }
.checkbox-label { display: flex; align-items: center; gap: 0.5rem; font-size: 0.9rem; color: var(--text-white); }
.checkbox-label input { width: auto; }
fieldset { border: 1px solid var(--border); border-radius: 8px; padding: 0.8rem; margin: 0 0 1rem; }
legend { padding: 0 0.4rem; color: var(--text-gray); font-size: 0.85rem; }

.tramo-row { display: grid; grid-template-columns: 1.2fr 1fr 0.8fr 1.2fr auto; gap: 0.5rem; margin-bottom: 0.5rem; align-items: center; }
.dist-list { list-style: none; padding: 0; margin: 0.6rem 0 0; font-size: 0.85rem; }
.dist-list li { padding: 0.15rem 0; border-top: 1px dashed var(--border); }

/* Panels */
.panel { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 1.25rem 1.4rem; margin-bottom: 1.5rem; }

/* Table */
.table { width: 100%; border-collapse: collapse; background: var(--bg-card); border-radius: 10px; overflow: hidden; }
.table th, .table td { padding: 0.6rem 0.8rem; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.table th { color: var(--text-gray); font-weight: 600; text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.4px; }
.row-late { background: rgba(224, 86, 86, 0.08); }

.estado { padding: 0.15rem 0.5rem; border-radius: 5px; font-size: 0.78rem; text-transform: capitalize; }
.estado-pagado { background: rgba(37, 211, 153, 0.18); color: var(--accent); }
.estado-pendiente { background: rgba(224, 185, 60, 0.18); color: var(--warning); }
.estado-atrasado { background: rgba(224, 86, 86, 0.18); color: var(--danger); }

.mora-layout { display: grid; grid-template-columns: 320px 1fr; gap: 1.5rem; align-items: start; }
@media (max-width: 800px) { .mora-layout { grid-template-columns: 1fr; } .form-row { grid-template-columns: 1fr; } .tramo-row { grid-template-columns: 1fr 1fr; } }

/* Onboarding */
.onboarding { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1.5rem; }
.onboarding-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; padding: 2.2rem; max-width: 420px; width: 100%; }
.onboarding-card h1 { display: flex; align-items: center; gap: 0.5rem; }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 1rem; }
.modal { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; max-width: 560px; width: 100%; max-height: 90vh; overflow-y: auto; }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: 1.1rem 1.3rem; border-bottom: 1px solid var(--border); }
.modal-body { padding: 1.3rem; }
.modal-close { background: none; border: none; color: var(--text-gray); font-size: 1.4rem; cursor: pointer; line-height: 1; }
.modal-footer { display: flex; justify-content: flex-end; gap: 0.6rem; margin-top: 1rem; }

/* Footer */
.app-footer { border-top: 1px solid var(--border); padding: 1.5rem 0; text-align: center; color: var(--text-gray); font-size: 0.85rem; }
.app-footer a { display: inline-block; margin-top: 0.4rem; text-decoration: none; }