/* ============================================================
   0. RESET Y BASE
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.muted { color: var(--text-muted); }
.hidden { display: none !important; }

/* ============================================================
   1. VARIABLES Y PALETA
   Tema: blanco + azul profundo + verde profundo
   ============================================================ */

:root {
    --bg-primary:   #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card:      #ffffff;

    --text-primary: #1a1d27;
    --text-muted:   #4b5563;

    --border:       #e5e7eb;
    --border-strong:#d1d5db;

    --deep-blue:    #0f172a;
    --deep-blue-h: #1e293b;
    --deep-green:  #064e3b;
    --soft-green:  #059669;
    --blue-tint:   rgba(37, 99, 235, 0.05);
    --blue-tint-2: rgba(15, 23, 42, 0.06);
    --green-tint:  rgba(6, 78, 59, 0.06);

    --accent:       #0f172a;
    --accent-hover: #1e293b;
    --green:        #059669;
    --red:          #dc2626;
    --yellow:       #d97706;

    --radius:       8px;
    --radius-lg:    12px;
    --font:         -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    --mono:         'SF Mono', 'Fira Code', 'Consolas', monospace;
    --container-max: 1200px;
    --header-height: 56px;
}

/* ============================================================
   2. LAYOUT GENERAL
   ============================================================ */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.page-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

/* ============================================================
   3. TOPBAR Y NAVEGACIÓN
   ============================================================ */

.topbar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-nav {
    max-width: var(--container-max);
    margin: 0 auto;
    height: var(--header-height);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-symbol {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 1rem;
    font-family: var(--mono);
}

.nav-links { display: flex; gap: 1rem; align-items: center; }

.nav-link {
    color: var(--text-muted);
    font-size: 0.95rem;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius);
    transition: color 0.2s, background 0.2s;
    cursor: pointer;
    background: none;
    border: none;
    font-family: var(--font);
    text-decoration: none;
}

.nav-link:hover { color: var(--text-primary); background: var(--blue-tint-2); text-decoration: none; }
.nav-link.active { color: var(--deep-blue); font-weight: 600; }
.nav-btn:hover { color: var(--red); background: rgba(220, 38, 38, 0.06); }

.nav-actions { display: flex; align-items: center; gap: 1rem; }

/* ============================================================
   4. BOTONES
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius);
    border: 1px solid transparent;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font);
    text-decoration: none;
}

.btn:hover { opacity: 0.92; }
.btn-primary { background: var(--deep-blue); color: #fff; border-color: var(--deep-blue); }
.btn-primary:hover { background: var(--deep-green); border-color: var(--deep-green); }
.btn-secondary { background: var(--bg-card); border-color: var(--deep-blue); color: var(--deep-blue); }
.btn-secondary:hover { background: var(--blue-tint); }
.btn-block { width: 100%; }
.btn-sm { padding: 0.25rem 0.6rem; font-size: 0.85rem; }
.btn-icon { background: none; border: none; cursor: pointer; font-size: 1.2rem; padding: 0.2rem; color: var(--text-muted); }
.btn-icon:hover { color: var(--red); }

/* ============================================================
   5. FORMULARIOS
   ============================================================ */

.form-group { margin-bottom: 1rem; }

.form-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.6rem 0.75rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: var(--font);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--deep-blue);
    box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.12);
}

.form-error   { color: var(--red);   font-size: 0.875rem; margin-top: 0.75rem; }
.form-success { color: var(--green); font-size: 0.875rem; margin-top: 0.75rem; }

.password-match {
    font-size: 0.8rem;
    margin-top: 0.4rem;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    display: inline-block;
}
.password-match.success { background: rgba(5, 150, 105, 0.1); color: var(--green); }
.password-match.error   { background: rgba(220, 38, 38, 0.1); color: var(--red); }

/* ============================================================
   6. TARJETAS
   ============================================================ */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: box-shadow 0.2s ease;
}

.card:hover { box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05); }
.card h3 { margin-bottom: 1rem; font-size: 1.1rem; color: var(--text-primary); }

/* Tarjeta de rentabilidad: fondo suave según signo */
.stat-card.stat-pos { background: rgba(5, 150, 105, 0.07); border-color: rgba(5, 150, 105, 0.25); }
.stat-card.stat-neg { background: rgba(220, 38, 38, 0.06); border-color: rgba(220, 38, 38, 0.25); }

/* ============================================================
   7. TABLAS
   ============================================================ */

.table-wrapper {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
}

.data-table { width: 100%; border-collapse: collapse; font-size: 0.925rem; }

.data-table th {
    text-align: left;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.data-table td { padding: 0.75rem 1rem; border-bottom: 1px solid var(--border); }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--blue-tint); }
.stock-row { cursor: pointer; }
.symbol-cell { font-family: var(--mono); font-weight: 600; }

.change-up   { color: var(--green); font-weight: 600; }
.change-down { color: var(--red);   font-weight: 600; }
.change-flat { color: var(--text-muted); }

.loading-cell, .empty-cell, .error-cell {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem 1rem;
}
.error-cell { color: var(--red); }

/* ============================================================
   8. LISTA DE ACCIONES (DASHBOARD)
   ============================================================ */

.stocks-list { display: block; }

.stocks-head,
.stock-row {
    display: grid;
    grid-template-columns: 14ch 1fr 1fr 1fr;
    gap: 0 1rem;
    align-items: center;
    padding: 0.75rem 1rem;
}

.stocks-head,
.stocks-head span,
.stock-row,
.stock-row span {
    white-space: nowrap;
}

.stocks-head {
    font-weight: 600;
    border-bottom: 2px solid var(--border);
    color: var(--text-muted);
}

.stocks-list .stock-row {
    color: inherit;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    transition: background-color 0.18s ease, box-shadow 0.18s ease;
}

.stocks-list .stock-row,
.stocks-list .stock-row * { text-decoration: none; }

.stocks-list .stock-row:hover {
    background-color: rgba(37, 99, 235, 0.08);
    box-shadow: inset 4px 0 0 0 #2563eb;
}

.stocks-list .stock-row:hover .symbol-cell { 
    color: #2563eb; 
}

.stocks-list .stock-row:focus-visible {
    outline: 2px solid #2563eb;
    outline-offset: -2px;
    background-color: rgba(37, 99, 235, 0.08);
}

.stocks-head span:nth-child(n+2),
.stock-row span:nth-child(n+2) {
    text-align: right;
    justify-self: end;
    font-variant-numeric: tabular-nums;
}

.stocks-head span:first-child,
.stock-row span:first-child {
    justify-self: start;
    overflow: hidden;
    text-overflow: ellipsis;
}

.stock-row-empty,
.stock-row-error {
    padding: 1.5rem 1rem;
    text-align: center;
    color: var(--text-muted);
}

.refresh-banner {
    background: var(--deep-blue);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.875rem;
    text-align: center;
}

/* ============================================================
   9. BADGES
   ============================================================ */

.badge {
    display: inline-block;
    padding: 0.15rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-ok   { background: rgba(5, 150, 105, 0.1); color: var(--green); }
.badge-warn { background: rgba(217, 119, 6, 0.1); color: var(--yellow); }

/* ============================================================
   10. TOASTS
   ============================================================ */

.toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 360px;
}

.toast {
    padding: 0.85rem 1.1rem;
    border-radius: var(--radius);
    color: #fff;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    animation: slideIn 0.25s ease-out;
    word-break: break-word;
}

.toast-info  { background: var(--deep-blue); }
.toast-warn  { background: var(--yellow); color: #fff; }
.toast-error { background: var(--red); }

@keyframes slideIn {
    from { opacity: 0; transform: translateX(40px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ============================================================
   11. PÁGINAS DE AUTENTICACIÓN (LOGIN / REGISTER)
   ============================================================ */

.auth-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
    background:
        radial-gradient(circle, rgba(15, 23, 42, 0.05) 0%, transparent 60%),
        radial-gradient(circle at bottom right, rgba(6, 78, 59, 0.05) 0%, transparent 50%);
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.06);
}

.auth-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 0.25rem;
    color: var(--deep-blue);
    letter-spacing: -0.03em;
}

.auth-subtitle { text-align: center; color: var(--text-muted); margin-bottom: 2rem; font-size: 0.9rem; }
.auth-form { display: flex; flex-direction: column; }
.auth-divider { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }

/* ============================================================
   12. FORMULARIO DE ALERTAS
   ============================================================ */

.alert-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    align-items: end;
}
.alert-form .btn { grid-column: 1 / -1; max-width: 200px; }

/* ============================================================
   13. LANDING PAGE (HOME)
   ============================================================ */

.landing-hero {
    padding: 4rem 5% 3rem;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.landing-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(circle, rgba(15, 23, 42, 0.05) 0%, transparent 60%),
        radial-gradient(circle at bottom right, rgba(6, 78, 59, 0.05) 0%, transparent 50%);
    z-index: -1;
}

.hero-title {
    font-size: 3rem;
    line-height: 1.1;
    margin-bottom: 1rem;
    color: var(--deep-blue);
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-group {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.cta-group .btn { padding: 0.8rem 2rem; }

.highlight-text { color: var(--deep-blue); font-weight: 600; }

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: var(--container-max);
    margin: 0 auto 4rem;
    padding: 0 5%;
}

.feature-card {
    padding: 2rem;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border);
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
    border-color: var(--deep-blue);
}

.feature-icon { font-size: 2rem; margin-bottom: 1rem; }
.feature-title { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--deep-blue); }
.feature-desc { color: var(--text-muted); font-size: 0.95rem; }

.trust-section {
    background-color: var(--bg-secondary);
    padding: 3rem 5%;
    text-align: center;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.trust-content { max-width: 800px; margin: 0 auto; }
.trust-title { font-size: 1.5rem; margin-bottom: 1rem; color: var(--deep-blue); }

.trust-list {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.trust-item { display: flex; align-items: center; gap: 0.5rem; color: var(--text-muted); }
.check-icon { color: var(--soft-green); font-weight: bold; }

.legal-footer {
    padding: 2rem 5%;
    max-width: var(--container-max);
    margin: 0 auto;
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
}

.legal-footer a { color: var(--text-muted); text-decoration: underline; }

.legal-warning {
    background-color: #fffbeb;
    border: 1px solid #fcd34d;
    color: #92400e;
    padding: 1rem;
    border-radius: var(--radius);
    display: inline-block;
    margin-bottom: 1.5rem;
    max-width: 800px;
}

/* ============================================================
   14. MENÚ MÓVIL (HAMBURGER)
   ============================================================ */

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 101;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--deep-blue);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    padding: 1rem 5%;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 100;
}

.mobile-menu.show { display: flex; }
.mobile-menu .btn { width: 100%; text-align: center; justify-content: center; }

/* ============================================================
   15. PÁGINA DE GRÁFICO (STOCK DETAIL) — LAYOUT
   ============================================================ */

.chart-wrapper {
    display: flex;
    height: calc(100vh - var(--header-height));
    flex-direction: column;
}

.chart-main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.chart-body { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
#chart-container { flex: 1; min-height: 0; }

#sub-chart-container {
    height: 160px;
    border-top: 1px solid var(--border);
    position: relative;
}

.chart-error {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    color: var(--text-muted);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.1);
}

/* ============================================================
   16. PÁGINA DE GRÁFICO — TOOLBAR Y MENÚS
   ============================================================ */

.chart-toolbar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
}

.toolbar-group { position: relative; display: inline-flex; align-items: center; }

.toolbar-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 6px;
    font-size: 18px;
    position: relative;
    transition: all 0.15s ease;
}

.toolbar-btn:hover { background: var(--green-tint); color: var(--deep-green); }
.toolbar-btn.active { background: var(--green-tint); color: var(--deep-green); }

.toolbar-separator {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 4px;
}

.toolbar-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px;
    display: none;
    flex-direction: column;
    gap: 4px;
    z-index: 100;
    min-width: 200px;
    max-height: 300px;
    overflow-y: auto;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.12);
}

.toolbar-dropdown.show { display: flex; }

.dropdown-item {
    padding: 8px 12px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    text-align: left;
    cursor: pointer;
    border-radius: 4px;
    font-size: 14px;
}

.dropdown-item:hover { background: var(--green-tint); color: var(--deep-green); }
.dropdown-item input, .dropdown-item select { cursor: pointer; }

.dropdown-item select {
    margin-right: 0.5rem;
    padding: 2px 4px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 13px;
}

.lines-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    min-width: 180px;
    z-index: 100;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.12);
}

.lines-menu.show { display: block; }

.lines-menu .dropdown-item {
    display: block;
    width: 100%;
    padding: 8px 14px;
    text-align: left;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 13px;
}

.lines-menu .dropdown-item:hover { background: var(--bg-secondary); color: var(--deep-blue); }

.chart-container.drawing { cursor: crosshair; }
#lines-toggle.draw-active { background: var(--deep-blue); color: #fff; }

.chart-body { position: relative; }

.chart-tools-fab {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 40;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.15);
    cursor: pointer;
    font-size: 18px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s, border-color 0.15s;
}

.chart-tools-fab:hover,
.chart-tools-fab.open {
    color: var(--deep-blue);
    border-color: var(--deep-blue);
}

.chart-panel {
    position: absolute;
    top: 12px;
    left: 60px;
    z-index: 39;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.18);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.chart-panel[hidden] { display: none; }

.chart-panel .chart-toolbar {
    background: transparent;
    border: none;
    padding: 0;
    box-shadow: none;
}

/* ============================================================
   17. PÁGINA DE GRÁFICO — INDICADORES
   ============================================================ */

.ind-form {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}

.ind-form-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--text-muted);
}

.ind-form-row input[type="number"] {
    width: 70px;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 3px 6px;
    font-size: 12px;
}

.ind-form .btn-sm { align-self: flex-end; }

/* ============================================================
   18. PÁGINA DE GRÁFICO — HERRAMIENTAS DE DIBUJO
   ============================================================ */

.line-tools {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 4px;
    z-index: 50;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.12);
}

.line-delete-btn {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    border: 1px solid var(--red);
    background: var(--bg-card);
    color: var(--red);
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.line-delete-btn:hover { background: var(--red); color: #fff; }

.line-tools .line-delete-btn {
    position: static;
    border: none;
    background: transparent;
}

.line-tools .line-delete-btn:hover { background: var(--red); color: #fff; }

.color-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    padding: 0;
}

.color-dot:hover { border-color: var(--deep-blue); }

.sub-close-btn {
    position: absolute;
    top: 6px;
    right: 60px;
    z-index: 10;
    width: 22px;
    height: 22px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg-card);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
}

.sub-close-btn:hover { color: var(--red); border-color: var(--red); }

/* ============================================================
   19. MODALES Y SETTINGS
   ============================================================ */

.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-overlay.show { display: flex; }

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 480px;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.25);
}

.modal-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
}

.modal-close:hover { color: var(--red); }
.modal-body { padding: 1.5rem; }

.settings-section h4 { margin-bottom: 0.5rem; color: var(--text-primary); }
.settings-hint { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 1rem; }

.profile-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    min-width: 200px;
    z-index: 110;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.12);
}

.profile-menu.show { display: block; }

.profile-menu-item {
    display: block;
    width: 100%;
    padding: 0.6rem 1rem;
    background: none;
    border: none;
    text-align: left;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.9rem;
    font-family: var(--font);
}

.profile-menu-item:hover { background: var(--bg-secondary); }
.profile-menu-danger:hover { color: var(--red); background: rgba(220, 38, 38, 0.06); }

/* ============================================================
   20. TELEGRAM
   ============================================================ */

.telegram-link-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.telegram-code-wrap code {
    background: var(--bg-secondary);
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
}

.tg-start-cmd {
    display: inline-block;
    font-family: var(--mono);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.15rem 0.5rem;
    margin-top: 0.25rem;
    user-select: all;
    cursor: pointer;
}

/* ============================================================
   21. RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
    .hero-title { font-size: 2.2rem; }
    .hero-subtitle { font-size: 1rem; }
    .landing-hero { padding: 3rem 5% 2rem; }
    .cta-group { flex-direction: column; gap: 0.75rem; }
    .cta-group .btn { width: 100%; }

    .nav-actions { display: none; }
    .hamburger { display: flex; }
    .topbar-nav { flex-wrap: wrap; gap: 0.5rem; padding: 0.5rem 1rem; }
    .chart-toolbar { order: 3; width: 100%; justify-content: center; margin-top: 0.5rem; }

    .container { padding: 1rem; }
    .features-grid { gap: 1.5rem; }
    .feature-card { padding: 1.5rem; }
    .trust-list { flex-direction: column; gap: 1rem; }

    .stocks-head,
    .stock-row {
        grid-template-columns: 14ch 1fr 1fr;
        gap: 0 0.6rem;
        padding: 0.75rem;
    }

    .stocks-head span:nth-child(4),
    .stock-row span:nth-child(4) { display: none; }

    .alert-form { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   22. PÁGINA DE CONFIGURACIÓN (SIDEBAR)
   ============================================================ */

.settings-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 2rem;
    margin-top: 1rem;
}

.settings-sidebar {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1rem;
    height: fit-content;
}

.settings-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-item {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-muted);
    transition: all 0.2s;
    font-weight: 500;
}

.menu-item:hover {
    background: var(--blue-tint);
    color: var(--deep-blue);
}

.menu-item.active {
    background: var(--deep-blue);
    color: #fff;
}

.menu-icon { font-size: 1.1rem; }

.settings-content {
    min-width: 0; /* Fix para overflow en hijos */
}

.settings-section h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.settings-hint {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.linked-card {
    border-left: 4px solid var(--green);
}

.success-badge {
    display: inline-block;
    background: rgba(5, 150, 105, 0.1);
    color: var(--green);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.code-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: var(--radius);
    border: 1px dashed var(--border-strong);
    margin: 1rem 0;
    justify-content: space-between;
}

.code-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.code-value {
    font-family: var(--mono);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--deep-blue);
    flex-grow: 1;
    text-align: center;
}

.btn-copy {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.btn-copy:hover { opacity: 1; }

.countdown-box {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 1rem;
}

/* Responsive: Sidebar a columna completa en móviles */
@media (max-width: 768px) {
    .settings-layout {
        grid-template-columns: 1fr;
    }
    
    .settings-sidebar {
        display: flex;
        overflow-x: auto;
        padding: 0.5rem;
    }
    
    .settings-menu {
        display: flex;
        gap: 0.5rem;
        margin: 0;
        width: max-content;
    }
    
    .menu-item {
        white-space: nowrap;
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}


/* ============================================================
   23. CONFIGURACIÓN — TOGGLE Y CÓDIGO TELEGRAM
   ============================================================ */

.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
}

.toggle-text { display: flex; flex-direction: column; }
.toggle-title { font-weight: 600; color: var(--text-primary); }
.toggle-sub { font-size: 0.85rem; color: var(--text-muted); }
.toggle-sub.pending { color: var(--yellow); }
.toggle-sub.linked { color: var(--green); }

/* Interruptor estilo switch */
.switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
    flex-shrink: 0;
}

.switch input { opacity: 0; width: 0; height: 0; }

.slider {
    position: absolute;
    inset: 0;
    background: var(--border-strong);
    border-radius: 999px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.slider::before {
    content: '';
    position: absolute;
    height: 20px;
    width: 20px;
    left: 3px;
    top: 3px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.2s ease;
}

.switch input:checked + .slider { background: var(--deep-green); }
.switch input:checked + .slider::before { transform: translateX(22px); }
.switch input:disabled + .slider { opacity: 0.5; cursor: wait; }

/* Panel del código */
.code-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 4px solid var(--deep-blue);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.code-instructions {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.tg-cmd {
    background: var(--bg-secondary);
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    font-family: var(--mono);
}

.code-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: var(--radius);
    border: 1px dashed var(--border-strong);
    margin: 0 0 1rem;
}

.code-label { font-size: 0.9rem; color: var(--text-muted); }

.code-value {
    font-family: var(--mono);
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--deep-blue);
    flex-grow: 1;
    text-align: center;
}

.btn-copy {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    opacity: 0.6;
    transition: opacity 0.2s;
}
.btn-copy:hover { opacity: 1; }

.countdown-box {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.loading-state {
    color: var(--text-muted);
    padding: 1rem 0;
}


/* ============================================================
   24. APP SHELL — SIDEBAR GLOBAL
   ============================================================ */

.app-body { min-height: 100vh; background: var(--bg-secondary); }

.app-shell {
    display: flex;
    min-height: 100vh;
}

/* --- Sidebar --- */
.sidebar {
    width: 240px;
    flex-shrink: 0;
    background: var(--bg-primary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    z-index: 100;
}

.sb-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 1.25rem 1.25rem 1rem;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}
.sb-brand:hover { text-decoration: none; }

.sb-brand-mark { font-size: 1.3rem; }

.sb-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 0.5rem 0.75rem;
    overflow-y: auto;
}

.sb-link {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    width: 100%;
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.925rem;
    font-weight: 500;
    background: none;
    border: none;
    font-family: var(--font);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    text-align: left;
}
.sb-link:hover { background: var(--blue-tint-2); color: var(--text-primary); text-decoration: none; }
.sb-link.active { background: var(--deep-blue); color: #fff; }

.sb-ico { font-size: 1.05rem; width: 20px; text-align: center; }
.sb-caret { margin-left: auto; transition: transform 0.2s; font-size: 1.1rem; color: var(--text-muted); }

.sb-group.open .sb-caret { transform: rotate(90deg); }

.sb-sub {
    display: none;
    flex-direction: column;
    gap: 2px;
    padding-left: 1.4rem;
}
.sb-group.open .sb-sub { display: flex; }

.sb-sub .sb-link { font-size: 0.875rem; padding: 0.45rem 0.75rem; color: var(--text-muted); }
.sb-sub .sb-link.active { background: var(--blue-tint); color: var(--deep-blue); font-weight: 600; }

.sb-foot {
    padding: 0.75rem;
    border-top: 1px solid var(--border);
}

.sb-logout {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    width: 100%;
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius);
    border: none;
    background: none;
    color: var(--text-muted);
    font-size: 0.925rem;
    font-family: var(--font);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}
.sb-logout:hover { background: rgba(220, 38, 38, 0.06); color: var(--red); }

/* --- Contenido --- */
.app-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.app-topbar {
    position: sticky;
    top: 0;
    z-index: 90;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    height: var(--header-height);
    padding: 0 1.5rem;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
}

.app-topbar-title { font-weight: 600; color: var(--text-primary); }

.sb-burger {
    display: none;
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--text-primary);
    cursor: pointer;
    line-height: 1;
}

.app-main {
    flex: 1;
    padding: 2rem 1.5rem;
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
}

.page-head { margin-bottom: 1.5rem; }
.page-head h2 { font-size: 1.4rem; letter-spacing: -0.02em; color: var(--text-primary); }
.page-head p { color: var(--text-muted); font-size: 0.95rem; margin-top: 0.25rem; }

/* Backdrop del drawer móvil */
.sb-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    z-index: 99;
}
.sb-backdrop.show { display: block; }

/* --- Stats (cartera) --- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.35rem;
}

.stat-value { font-size: 1.35rem; font-weight: 700; color: var(--text-primary); font-variant-numeric: tabular-nums; }

/* --- Facturas --- */
.dropzone {
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}
.dropzone.drag, .dropzone:hover { border-color: var(--deep-blue); background: var(--blue-tint); }
.dropzone-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.dropzone-text { color: var(--text-muted); font-size: 0.95rem; }

.xml-result-row {
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    margin-top: 0.75rem;
}
.xml-result-row.ok   { background: rgba(5, 150, 105, 0.08); color: var(--green); }
.xml-result-row.skip { background: var(--bg-secondary); color: var(--text-muted); }
.xml-result-row.err  { background: rgba(220, 38, 38, 0.08); color: var(--red); }

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.lines-title { margin: 1.25rem 0 0.75rem; font-size: 1rem; color: var(--text-primary); }

#lines-table td { padding: 0.4rem 0.6rem; }
#lines-table input {
    width: 100%;
    padding: 0.45rem 0.6rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.9rem;
}

.inv-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
}

.cash-form { align-items: end; }

/* --- Responsive: drawer móvil --- */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -240px;
        top: 0;
        transition: left 0.25s ease;
        box-shadow: 0 0 30px rgba(15, 23, 42, 0.2);
    }
    .sidebar.open { left: 0; }
    .sb-burger { display: block; }
    .app-main { padding: 1.25rem 1rem; }
}

/* ============================================================
   25. PÁGINA DE LOTES (CARTERA)
   ============================================================ */

.lot-group {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 10px;
    background: var(--bg-card);
    overflow: hidden;
}

.lot-group-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    cursor: pointer;
    list-style: none;
    user-select: none;
}

.lot-group-header::-webkit-details-marker { display: none; }

.lot-group-header:hover {
    background: var(--blue-tint);
}

.lot-group[open] .lot-group-header {
    border-bottom: 1px solid var(--border);
}

.lot-ticker {
    font-family: var(--mono);
    font-weight: 600;
    color: var(--deep-blue);
    min-width: 90px;
}

.lot-meta {
    color: var(--text-muted);
    font-size: 0.85rem;
    flex: 1;
}

.lot-arrow {
    color: var(--text-muted);
    font-size: 1.1rem;
    transition: transform 0.2s;
}

.lot-group[open] .lot-arrow { transform: rotate(90deg); }

.lot-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.lot-table th,
.lot-table td {
    padding: 0.6rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.lot-table tbody tr:last-child td { border-bottom: none; }

.lot-table tbody tr:hover { background: var(--blue-tint); }

.lot-table th {
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.04em;
    background: var(--bg-secondary);
}

.lot-table .num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.lot-link {
    color: var(--deep-blue);
    font-size: 0.75rem;
    text-decoration: none;
}

.lot-link:hover {
    color: var(--deep-green);
    text-decoration: underline;
}

.empty-state {
    padding: 2rem 1rem;
    text-align: center;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .lot-group-header { padding: 10px 12px; gap: 10px; }
    .lot-table th, .lot-table td { padding: 0.45rem 0.75rem; font-size: 0.85rem; }
    .lot-table th:last-child,
    .lot-table td:last-child { display: none; }
}


/* ============================================================
   26. PÁGINA DE REPORTES (GANANCIAS / COMISIONES)
   ============================================================ */

.rep-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.rep-tab {
    padding: 0.6rem 1.25rem;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    font-size: 0.925rem;
    font-weight: 500;
    font-family: var(--font);
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
    margin-bottom: -1px;
}

.rep-tab:hover {
    color: var(--text-primary);
}

.rep-tab.active {
    color: var(--deep-blue);
    border-bottom-color: var(--deep-blue);
    font-weight: 600;
}

.rep-panel { margin-bottom: 1.5rem; }