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

:root {
    --primary: #6C63FF;
    --primary-dark: #5A52D5;
    --secondary: #FF6584;
    --success: #2ED573;
    --warning: #FFA502;
    --danger: #FF4757;
    --dark: #2C3E50;
    --gray: #7F8C8D;
    --light: #ECF0F1;
    --white: #FFFFFF;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #F5F7FA;
    color: var(--dark);
    padding-bottom: 80px;
    padding-top: 120px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 16px 20px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255,255,255,0.95);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.header h1 {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header h1 i {
    -webkit-text-fill-color: var(--primary);
}

.menu-toggle {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark);
    padding: 8px;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.menu-toggle:active {
    transform: scale(0.9);
}

.search-bar {
    display: flex;
    align-items: center;
    background: var(--light);
    border-radius: 12px;
    padding: 0 16px;
    transition: var(--transition);
}

.search-bar:focus-within {
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.2);
}

.search-bar i {
    color: var(--gray);
    margin-right: 12px;
}

.search-bar input {
    border: none;
    background: none;
    padding: 12px 0;
    font-size: 15px;
    width: 100%;
    outline: none;
    color: var(--dark);
}

/* Navigation mobile */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--white);
    display: flex;
    justify-content: space-around;
    padding: 8px 0;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255,255,255,0.95);
}

.mobile-nav a {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 16px;
    color: var(--gray);
    text-decoration: none;
    font-size: 12px;
    border-radius: 12px;
    transition: var(--transition);
    position: relative;
}

.mobile-nav a i {
    font-size: 22px;
    margin-bottom: 2px;
}

.mobile-nav a.active {
    color: var(--primary);
    background: rgba(108, 99, 255, 0.1);
}

.mobile-nav a:active {
    transform: scale(0.9);
}

/* Sections */
.section {
    display: none;
    padding: 16px 20px;
    animation: fadeIn 0.3s ease;
}

.section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.badge {
    background: var(--primary);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

/* Residents Grid */
.residents-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.resident-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.resident-card:active {
    transform: scale(0.98);
}

.resident-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
}

.resident-name {
    font-weight: 600;
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.resident-name .owner-badge {
    background: var(--success);
    color: var(--white);
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 12px;
}

.resident-apt {
    color: var(--gray);
    font-size: 14px;
}

.resident-actions {
    display: flex;
    gap: 8px;
}

.btn-action {
    background: none;
    border: none;
    padding: 8px;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 16px;
}

.btn-action.call {
    color: var(--success);
    background: rgba(46, 213, 115, 0.1);
}

.btn-action.whatsapp {
    color: #25D366;
    background: rgba(37, 211, 102, 0.1);
}

.btn-action.edit {
    color: var(--primary);
    background: rgba(108, 99, 255, 0.1);
}

.btn-action.delete {
    color: var(--danger);
    background: rgba(255, 71, 87, 0.1);
}

.btn-action:active {
    transform: scale(0.8);
}

.resident-details {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--light);
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    color: var(--gray);
}

.detail-item i {
    font-size: 14px;
}

/* Form */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 14px;
}

.form-group label i {
    color: var(--primary);
    margin-right: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--light);
    border-radius: 12px;
    font-size: 15px;
    transition: var(--transition);
    font-family: inherit;
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
    outline: none;
}

.btn-submit {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-submit:active {
    transform: scale(0.97);
}

.btn-add {
    background: var(--primary);
    color: var(--white);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-add:active {
    transform: scale(0.9);
}

/* Announcements */
.announcements-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.announcement-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary);
}

.announcement-card.urgent {
    border-left-color: var(--danger);
    background: linear-gradient(135deg, #FFF5F5, var(--white));
}

.announcement-card.event {
    border-left-color: var(--warning);
    background: linear-gradient(135deg, #FFFAF0, var(--white));
}

.announcement-title {
    font-weight: 600;
    font-size: 16px;
    margin-bottom: 6px;
    display: flex;
    justify-content: space-between;
}

.announcement-date {
    font-size: 12px;
    color: var(--gray);
}

.announcement-content {
    color: var(--gray);
    font-size: 14px;
    line-height: 1.5;
}

.announcement-category {
    display: inline-block;
    padding: 2px 12px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    margin-top: 8px;
}

.category-general { background: var(--light); color: var(--gray); }
.category-urgent { background: var(--danger); color: var(--white); }
.category-event { background: var(--warning); color: var(--white); }
.category-maintenance { background: var(--primary); color: var(--white); }

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
    text-align: center;
}

.stat-icon {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 8px;
}

.stat-number {
    font-size: 24px;
    font-weight: 700;
    display: block;
}

.stat-label {
    font-size: 12px;
    color: var(--gray);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    padding: 20px;
    animation: fadeIn 0.3s ease;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--gray);
    cursor: pointer;
    padding: 0 8px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--gray);
}

.empty-state i {
    font-size: 48px;
    color: var(--light);
    margin-bottom: 12px;
}

/* Responsive */
@media (min-width: 768px) {
    body {
        padding-top: 150px;
    }
    
    .residents-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .modal {
        align-items: center;
    }
}

@media (min-width: 1024px) {
    .residents-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .header {
        padding: 20px 40px;
    }
    
    .section {
        padding: 20px 40px;
    }
}