/* =============================================
   WhatsApp SaaS Automation — Estilos Principales
   ============================================= */

:root {
    --bg-primary: #0a0f1a;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.85);
    --bg-sidebar: #0d1321;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-green: #25D366;
    --accent-green-dark: #128C7E;
    --accent-blue: #3b82f6;
    --accent-purple: #a855f7;
    --border-color: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.08);
    --shadow-glow: 0 0 30px rgba(37, 211, 102, 0.1);
    --sidebar-width: 260px;
    --topbar-height: 64px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius: 12px;
    --radius-sm: 8px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
}

/* ─── Scrollbar ─────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* ─── Auth Layout ──────────────────────────── */
.auth-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a0f1a 0%, #0d1f12 50%, #0a0f1a 100%);
    position: relative;
    overflow: hidden;
}

.auth-container {
    width: 100%;
    max-width: 440px;
    padding: 2rem;
    position: relative;
    z-index: 2;
}

.auth-bg-shape {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    z-index: 0;
    animation: float 20s ease-in-out infinite;
}

.auth-bg-shape-1 {
    width: 500px; height: 500px;
    background: var(--accent-green);
    top: -100px; right: -100px;
}

.auth-bg-shape-2 {
    width: 400px; height: 400px;
    background: var(--accent-blue);
    bottom: -150px; left: -100px;
    animation-delay: -7s;
}

.auth-bg-shape-3 {
    width: 300px; height: 300px;
    background: var(--accent-purple);
    top: 40%; left: 60%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 2rem;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-glow), 0 25px 50px rgba(0, 0, 0, 0.4);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo {
    width: 72px; height: 72px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    margin-bottom: 1rem;
    box-shadow: 0 8px 20px rgba(37, 211, 102, 0.3);
}

.auth-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.auth-subtitle {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.auth-form-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.auth-btn {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
    border: none;
    font-weight: 600;
    letter-spacing: 0.025em;
    transition: var(--transition);
}

.auth-btn:hover {
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.35);
    transform: translateY(-1px);
}

.auth-link {
    color: var(--accent-green);
    text-decoration: none;
    font-size: 0.875rem;
}

.auth-link:hover { color: #34eb7a; }

.auth-divider {
    text-align: center;
    margin: 1.5rem 0;
    position: relative;
}

.auth-divider::before, .auth-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: var(--border-color);
}

.auth-divider::before { left: 0; }
.auth-divider::after { right: 0; }

.auth-divider span {
    color: var(--text-muted);
    font-size: 0.8rem;
    padding: 0 1rem;
}

.auth-footer {
    text-align: center;
    margin-top: 2rem;
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* ─── App Layout ───────────────────────────── */
.app-body {
    display: flex;
    min-height: 100vh;
}

/* ─── Sidebar ──────────────────────────────── */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 1050;
    transition: var(--transition);
}

.sidebar-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
}

.sidebar-brand i {
    font-size: 1.5rem;
    color: var(--accent-green);
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem 0;
}

.sidebar-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-section {
    padding: 1rem 1.5rem 0.5rem;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    font-weight: 600;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover {
    color: var(--text-primary);
    background: var(--glass-bg);
    border-left-color: var(--accent-green);
}

.sidebar-nav a.active {
    color: var(--accent-green);
    background: rgba(37, 211, 102, 0.08);
    border-left-color: var(--accent-green);
}

.sidebar-nav a i { font-size: 1.1rem; width: 20px; text-align: center; }

.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-avatar {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

.user-details {
    display: flex;
    flex-direction: column;
}

.user-name { font-size: 0.8rem; font-weight: 600; }
.user-role { font-size: 0.65rem; color: var(--text-muted); }

.logout-btn {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 1.25rem;
    transition: var(--transition);
}

.logout-btn:hover { color: #ef4444; }

/* ─── Main Content ─────────────────────────── */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
}

.topbar {
    height: var(--topbar-height);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-left { display: flex; align-items: center; gap: 1rem; }

.page-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
}

.sidebar-toggle-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

.topbar-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.page-content {
    padding: 1.5rem;
}

/* ─── Glass Card ───────────────────────────── */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    overflow: hidden;
}

.glass-card .card-header {
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
}

.glass-card .card-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ─── KPI Cards ────────────────────────────── */
.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.kpi-messages::before { background: linear-gradient(90deg, var(--accent-green), #34eb7a); }
.kpi-conversations::before { background: linear-gradient(90deg, var(--accent-blue), #60a5fa); }
.kpi-contacts::before { background: linear-gradient(90deg, var(--accent-purple), #c084fc); }
.kpi-campaigns::before { background: linear-gradient(90deg, #f59e0b, #fbbf24); }

.kpi-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.kpi-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.kpi-messages .kpi-icon { background: rgba(37, 211, 102, 0.15); color: var(--accent-green); }
.kpi-conversations .kpi-icon { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }
.kpi-contacts .kpi-icon { background: rgba(168, 85, 247, 0.15); color: var(--accent-purple); }
.kpi-campaigns .kpi-icon { background: rgba(245, 158, 11, 0.15); color: #f59e0b; }

.kpi-info { flex: 1; }
.kpi-value { font-size: 1.75rem; font-weight: 700; display: block; line-height: 1; }
.kpi-label { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.25rem; display: block; }
.kpi-detail { font-size: 0.7rem; position: absolute; bottom: 0.75rem; right: 1rem; }

/* ─── Tables ───────────────────────────────── */
.table-dark {
    --bs-table-bg: transparent;
    --bs-table-color: var(--text-primary);
    --bs-table-border-color: var(--border-color);
}

.table-dark thead th {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
    padding: 0.75rem 1rem;
    border-bottom-width: 1px;
}

.table-dark tbody td {
    padding: 0.75rem 1rem;
    vertical-align: middle;
    font-size: 0.875rem;
}

.table-hover.table-dark > tbody > tr:hover {
    --bs-table-hover-bg: rgba(255, 255, 255, 0.03);
}

/* ─── Contact Avatar ───────────────────────── */
.contact-avatar {
    width: 36px; height: 36px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
    color: white;
    flex-shrink: 0;
}

.contact-avatar-sm {
    width: 28px; height: 28px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.7rem;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
    color: white;
    flex-shrink: 0;
}

/* ─── Chat Layout ──────────────────────────── */
.chat-container {
    display: flex;
    height: calc(100vh - var(--topbar-height) - 3rem);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    background: var(--bg-card);
}

.chat-sidebar {
    width: 340px;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.chat-sidebar-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.chat-list {
    flex: 1;
    overflow-y: auto;
}

.chat-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.chat-item:hover { background: rgba(255,255,255,0.03); color: var(--text-primary); }
.chat-item.active { background: rgba(37, 211, 102, 0.08); border-left: 3px solid var(--accent-green); }

.chat-item-avatar {
    width: 44px; height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    color: white;
    flex-shrink: 0;
    position: relative;
}

.chat-badge {
    position: absolute;
    top: -4px; right: -4px;
    width: 20px; height: 20px;
    background: var(--accent-green);
    border: 2px solid var(--bg-sidebar);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    font-weight: 700;
}

.chat-item-info { flex: 1; min-width: 0; }

.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.chat-header {
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.02);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: radial-gradient(ellipse at center, rgba(37, 211, 102, 0.02) 0%, transparent 70%);
}

.message {
    display: flex;
    max-width: 65%;
}

.message-in { align-self: flex-start; }
.message-out { align-self: flex-end; }

.message-bubble {
    padding: 0.6rem 0.85rem;
    border-radius: 12px;
    font-size: 0.875rem;
    line-height: 1.4;
    position: relative;
}

.message-in .message-bubble {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 4px;
}

.message-out .message-bubble {
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.2), rgba(18, 140, 126, 0.2));
    border: 1px solid rgba(37, 211, 102, 0.15);
    border-bottom-right-radius: 4px;
}

.message-meta {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    justify-content: flex-end;
    margin-top: 0.25rem;
    font-size: 0.65rem;
    color: var(--text-muted);
}

.chat-input {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.02);
}

.chat-input .form-control {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 24px;
    padding: 0.65rem 1.25rem;
}

.chat-input .btn {
    border-radius: 50%;
    width: 40px; height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.chat-empty {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ─── Kanban Board ─────────────────────────── */
.kanban-board {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    padding-bottom: 1rem;
}

.kanban-column {
    min-width: 280px;
    max-width: 300px;
    flex-shrink: 0;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
}

.kanban-column-header {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    font-size: 0.875rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius) var(--radius) 0 0;
}

.kanban-column-body {
    flex: 1;
    padding: 0.75rem;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    overflow-y: auto;
    max-height: 70vh;
}

.kanban-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem;
    cursor: grab;
    transition: var(--transition);
}

.kanban-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.kanban-card:active { cursor: grabbing; }

.kanban-card.dragging {
    opacity: 0.5;
    transform: rotate(3deg);
}

.kanban-card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.kanban-card-body { font-size: 0.8rem; }

.kanban-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.75rem;
}

/* ─── Forms ────────────────────────────────── */
.form-control, .form-select {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    background-color: var(--bg-secondary);
    border-color: var(--accent-green);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.15);
}

.form-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.form-check-input:checked {
    background-color: var(--accent-green);
    border-color: var(--accent-green);
}

/* ─── Nav Tabs (settings) ──────────────────── */
.nav-dark .nav-link {
    color: var(--text-secondary);
    border: none;
    border-bottom: 2px solid transparent;
    padding: 0.75rem 1.25rem;
    font-size: 0.875rem;
    transition: var(--transition);
}

.nav-dark .nav-link:hover {
    color: var(--text-primary);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.nav-dark .nav-link.active {
    color: var(--accent-green);
    border-bottom-color: var(--accent-green);
    background: transparent;
}

/* ─── Badges ───────────────────────────────── */
.bg-purple { background-color: var(--accent-purple) !important; }

/* ─── Alerts ───────────────────────────────── */
.alert {
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    border: none;
}

/* ─── Buttons ──────────────────────────────── */
.btn-success {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
    border: none;
    font-weight: 500;
}

.btn-success:hover {
    background: linear-gradient(135deg, #34eb7a, var(--accent-green));
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.25);
}

.btn-outline-success {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.btn-outline-success:hover {
    background: var(--accent-green);
    border-color: var(--accent-green);
}

/* ─── Badge styling ────────────────────────── */
.badge {
    font-weight: 500;
    font-size: 0.7rem;
    letter-spacing: 0.02em;
}

/* ─── Calendar Overrides ───────────────────── */
.fc {
    --fc-bg-event-opacity: 0.85;
    --fc-border-color: var(--border-color);
    --fc-page-bg-color: transparent;
    --fc-neutral-bg-color: var(--bg-secondary);
    --fc-list-event-hover-bg-color: rgba(255,255,255,0.05);
    --fc-today-bg-color: rgba(37, 211, 102, 0.05);
}

.fc-theme-bootstrap5 .fc-scrollgrid { border-color: var(--border-color); }
.fc .fc-daygrid-day-number, .fc .fc-col-header-cell-cushion { color: var(--text-primary); text-decoration: none; }
.fc .fc-button-primary {
    background: var(--accent-green);
    border-color: var(--accent-green);
}
.fc .fc-button-primary:hover { background: var(--accent-green-dark); }

/* ─── Responsive ───────────────────────────── */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.show { transform: translateX(0); }
    .main-content { margin-left: 0; }

    .chat-container { flex-direction: column; height: auto; }
    .chat-sidebar { width: 100%; max-height: 300px; }

    .kanban-board { overflow-x: auto; }
}

/* ─── List group dark ──────────────────────── */
.list-group-item.bg-transparent {
    color: var(--text-primary);
}

/* ─── Modal dark theme ─────────────────────── */
.modal-content.bg-dark {
    border: 1px solid var(--border-color);
}

.modal-content.bg-dark .modal-header,
.modal-content.bg-dark .modal-footer {
    border-color: var(--border-color);
}

/* ─── Input Group ──────────────────────────── */
.input-group-text {
    color: var(--text-muted);
}

/* ─── Drag over effect ─────────────────────── */
.kanban-column-body.drag-over {
    background: rgba(37, 211, 102, 0.05);
    border: 2px dashed rgba(37, 211, 102, 0.3);
    border-radius: var(--radius-sm);
}