/* Light mode (default) */
:root {
    --bg-color: #f5f7fa;
    --text-color: #1e293b;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --navbar-bg: #ffffff;
    --navbar-text: #475569;
    --navbar-hover: #0f172a;
    --input-bg: #ffffff;
    --input-border: #cbd5e1;
    --table-header-bg: #f8fafc;
    --table-row-hover: #f8fafc;
    --footer-text: #64748b;
    --link-color: #3b82f6;
    --link-hover: #2563eb;
    --btn-primary-bg: #3b82f6;
    --btn-primary-hover: #2563eb;
    --btn-secondary-bg: #e2e8f0;
    --btn-secondary-text: #334155;
    --btn-secondary-hover: #cbd5e1;
    --btn-danger-bg: #ef4444;
    --btn-danger-hover: #dc2626;
    --alert-success-bg: #d1fae5;
    --alert-success-border: #a7f3d0;
    --alert-success-text: #065f46;
    --alert-error-bg: #fee2e2;
    --alert-error-border: #fecaca;
    --alert-error-text: #991b1b;
}

/* Dark mode */
body.dark-mode {
    --bg-color: #1a1e2b;
    --text-color: #e2e8f0;
    --card-bg: #2d3346;
    --border-color: #4a5168;
    --navbar-bg: #2d3346;
    --navbar-text: #cbd5e1;
    --navbar-hover: #f8fafc;
    --input-bg: #1a1e2b;
    --input-border: #4a5168;
    --table-header-bg: #373d52;
    --table-row-hover: #373d52;
    --footer-text: #94a3b8;
    --link-color: #60a5fa;
    --link-hover: #3b82f6;
    --btn-primary-bg: #2563eb;
    --btn-primary-hover: #1d4ed8;
    --btn-secondary-bg: #4a5168;
    --btn-secondary-text: #e2e8f0;
    --btn-secondary-hover: #5f6a85;
    --btn-danger-bg: #b91c1c;
    --btn-danger-hover: #991b1b;
    --alert-success-bg: #14532d;
    --alert-success-border: #166534;
    --alert-success-text: #bbf7d0;
    --alert-error-bg: #7f1d1d;
    --alert-error-border: #991b1b;
    --alert-error-text: #fecaca;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background-color: var(--navbar-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    margin-bottom: 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--text-color);
    text-decoration: none;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.navbar-menu a {
    color: var(--navbar-text);
    text-decoration: none;
    font-weight: 500;
    white-space: nowrap;
}

.navbar-menu a:hover {
    color: var(--navbar-hover);
}

.dark-mode-toggle {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px 8px;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-color);
    background-color: var(--card-bg);
}

.dark-mode-toggle:hover {
    background-color: var(--btn-secondary-bg);
}

/* Footer */
.footer {
    margin-top: 50px;
    padding: 20px 0;
    border-top: 1px solid var(--border-color);
    color: var(--footer-text);
    font-size: 0.875rem;
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    padding: 20px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

/* Forms */
.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--text-color);
}

input, select, textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--input-border);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    background-color: var(--input-bg);
    color: var(--text-color);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--link-color);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--btn-primary-bg);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
}

.btn:hover {
    background-color: var(--btn-primary-hover);
}

.btn-secondary {
    background-color: var(--btn-secondary-bg);
    color: var(--btn-secondary-text);
}

.btn-secondary:hover {
    background-color: var(--btn-secondary-hover);
}

.btn-danger {
    background-color: var(--btn-danger-bg);
    color: white;
}

.btn-danger:hover {
    background-color: var(--btn-danger-hover);
}

.btn-small {
    padding: 4px 8px;
    font-size: 0.875rem;
}

/* Tables */
.table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    min-width: 800px; /* Forces horizontal scroll on small screens */
}

.table th,
.table td {
    padding: 12px 8px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.table th {
    background-color: var(--table-header-bg);
    font-weight: 600;
    color: var(--text-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

.table tbody tr:hover {
    background-color: var(--table-row-hover);
}

/* Column width hints */
.table th:nth-child(2) { min-width: 150px; } /* Name */
.table th:nth-child(3) { min-width: 120px; } /* Company */
.table th:nth-child(4) { min-width: 180px; } /* Phone + icons */
.table th:nth-child(5) { min-width: 180px; } /* Email + icons */
.table th:nth-child(6) { min-width: 100px; } /* Status */
.table th:nth-child(7) { min-width: 100px; } /* Owner (if admin) */
.table th:nth-child(8) { min-width: 90px; }  /* Created */
.table th:last-child { min-width: 120px; }    /* Actions */

/* Stats grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    text-align: center;
    border: 1px solid var(--border-color);
}

.stat-card h3 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--footer-text);
    margin-bottom: 10px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-color);
}

/* Alerts */
.alert {
    padding: 12px 15px;
    border-radius: 6px;
    margin-bottom: 20px;
    border: 1px solid transparent;
}

.alert-success {
    background-color: var(--alert-success-bg);
    border-color: var(--alert-success-border);
    color: var(--alert-success-text);
}

.alert-error {
    background-color: var(--alert-error-bg);
    border-color: var(--alert-error-border);
    color: var(--alert-error-text);
}

/* Status badges */
.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: capitalize;
}

.status-new {
    background-color: #e2e8f0;
    color: #475569;
}

.status-contacted {
    background-color: #dbeafe;
    color: #1e40af;
}

.status-interested {
    background-color: #dcfce7;
    color: #166534;
}

.status-not_interested {
    background-color: #fee2e2;
    color: #991b1b;
}

.status-converted {
    background-color: #fef9c3;
    color: #854d0e;
}

/* Dark mode status adjustments */
body.dark-mode .status-new {
    background-color: #4a5568;
    color: #e2e8f0;
}
body.dark-mode .status-contacted {
    background-color: #1e3a8a;
    color: #bfdbfe;
}
body.dark-mode .status-interested {
    background-color: #14532d;
    color: #bbf7d0;
}
body.dark-mode .status-not_interested {
    background-color: #7f1d1d;
    color: #fecaca;
}
body.dark-mode .status-converted {
    background-color: #854d0e;
    color: #fef9c3;
}

/* Status row colors */
.row-new {
    background-color: rgba(226, 232, 240, 0.3);
}
.row-contacted {
    background-color: rgba(219, 234, 254, 0.3);
}
.row-interested {
    background-color: rgba(220, 252, 231, 0.3);
}
.row-not_interested {
    background-color: rgba(254, 202, 202, 0.3);
}
.row-converted {
    background-color: rgba(254, 249, 195, 0.3);
}

body.dark-mode .row-new {
    background-color: rgba(74, 85, 104, 0.3);
}
body.dark-mode .row-contacted {
    background-color: rgba(30, 58, 138, 0.3);
}
body.dark-mode .row-interested {
    background-color: rgba(20, 83, 45, 0.3);
}
body.dark-mode .row-not_interested {
    background-color: rgba(127, 29, 29, 0.3);
}
body.dark-mode .row-converted {
    background-color: rgba(133, 77, 14, 0.3);
}

/* Contact action icons */
.contact-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--btn-secondary-bg);
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.2rem;
    transition: background-color 0.2s;
    flex-shrink: 0;
}

.contact-icon:hover {
    background-color: var(--btn-secondary-hover);
    text-decoration: none;
}

.contact-icon.whatsapp {
    background-color: #25D366;
    color: white;
}

.contact-icon.whatsapp:hover {
    background-color: #128C7E;
}

.contact-icon.email {
    cursor: pointer;
}

/* Dropdown styles */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--card-bg);
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1000;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    right: 0; /* Align to right to avoid overflow */
}

.dropdown-content a {
    color: var(--text-color);
    padding: 8px 12px;
    text-decoration: none;
    display: block;
    font-size: 0.9rem;
    white-space: nowrap;
}

.dropdown-content a:hover {
    background-color: var(--table-row-hover);
}

.dropdown:hover .dropdown-content {
    display: block;
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    background-color: var(--card-bg);
    margin: 15% auto;
    padding: 20px;
    border: 1px solid var(--border-color);
    width: 400px;
    max-width: 90%;
    border-radius: 8px;
    position: relative;
    color: var(--text-color);
}

.close {
    position: absolute;
    right: 15px;
    top: 10px;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-color);
}

/* Editable cell styles */
.editable {
    cursor: pointer;
    position: relative;
    display: inline-block;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.editable:hover {
    background-color: var(--table-row-hover);
}

.editable.editing {
    padding: 0;
    max-width: none;
}

.editable input {
    width: auto;
    min-width: 150px;
    padding: 8px;
    border: 2px solid var(--link-color);
    border-radius: 4px;
    font-size: inherit;
    background-color: var(--input-bg);
    color: var(--text-color);
}

/* Shared badge */
.shared-badge {
    font-size: 1.2rem;
    margin-right: 5px;
    cursor: help;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .navbar-menu {
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .card {
        padding: 15px;
    }
    
    /* Table adjustments */
    .table th,
    .table td {
        padding: 8px 4px;
        font-size: 0.9rem;
    }
    
    /* Hide less important columns on mobile? We'll keep scroll instead */
    
    /* Form adjustments */
    .form-group {
        margin-bottom: 12px;
    }
    
    input, select, textarea {
        font-size: 16px; /* Prevent zoom on mobile */
    }
    
    /* Action buttons stack */
    #bulk-actions-form > div:first-child {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn, .btn-secondary, .btn-danger {
        width: 100%;
        text-align: center;
        margin-bottom: 5px;
    }
    
    /* Dropdown on mobile */
    .dropdown {
        width: 100%;
    }
    
    .dropdown-toggle {
        width: 100%;
    }
    
    /* Contact icons smaller on mobile */
    .contact-icon {
        width: 28px;
        height: 28px;
        font-size: 1rem;
    }
}

/* Utilities */
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }

/* Notification styles */
.notification-dropdown {
    position: relative;
    display: inline-block;
}

.notification-bell {
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    position: relative;
    padding: 5px;
    color: var(--text-color);
}

.notification-count {
    position: absolute;
    top: 0;
    right: 0;
    background-color: #ef4444;
    color: white;
    border-radius: 50%;
    padding: 2px 6px;
    font-size: 0.7rem;
    min-width: 18px;
    text-align: center;
}

.notification-list {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    width: 350px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 1000;
    max-height: 500px;
    overflow-y: auto;
}

.notification-dropdown:hover .notification-list {
    display: block;
}

.notification-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

.notification-header a {
    font-size: 0.85rem;
    color: var(--link-color);
    text-decoration: none;
}

.notification-item {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}

.notification-item:hover {
    background-color: var(--table-row-hover);
}

.notification-item.unread {
    background-color: rgba(59, 130, 246, 0.1);
}

.notification-message {
    margin-bottom: 5px;
    font-size: 0.95rem;
}

.notification-time {
    font-size: 0.8rem;
    color: var(--footer-text);
}

.notification-footer {
    padding: 10px 15px;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.notification-footer a {
    color: var(--link-color);
    text-decoration: none;
    font-size: 0.9rem;
}

.notification-loading {
    padding: 20px;
    text-align: center;
    color: var(--footer-text);
}