:root {
    --primary: #4a6cf7;
    --primary-dark: #3a5ce5;
    --secondary: #6c757d;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --light: #f8f9fa;
    --dark: #343a40;
    --white: #ffffff;
    --gray: #6c757d;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f7fb;
    color: var(--dark);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header Styles */
header {
    background-color: var(--white);
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.logo i {
    margin-right: 10px;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 25px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
}

.auth-buttons {
    display: flex;
    align-items: center;
}

.btn {
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

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

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
    margin-right: 10px;
}

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

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

.btn-success:hover {
    background-color: #218838;
}

.btn-small {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn-large {
    padding: 15px 30px;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary), #6a11cb);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
    border-radius: 0 0 30px 30px;
    margin-bottom: 40px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
}

/* Campaign Section */
.section-title {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
    color: var(--dark);
}

.campaigns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.campaign-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: var(--transition);
}

.campaign-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.campaign-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.campaign-content {
    padding: 20px;
}

.campaign-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.campaign-description {
    color: var(--gray);
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.progress-container {
    margin-bottom: 15px;
}

.progress-bar {
    height: 8px;
    background-color: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
}

.progress {
    height: 100%;
    background-color: var(--primary);
    border-radius: 4px;
    transition: width 0.5s ease;
}

.campaign-stats {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.campaign-goal {
    font-weight: 600;
    color: var(--dark);
}

.campaign-raised {
    color: var(--success);
    font-weight: 600;
}

.campaign-donors {
    color: var(--gray);
}

/* How it Works Section */
.how-it-works {
    padding: 60px 0;
    background-color: var(--white);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    text-align: center;
}

.step-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), #6a11cb);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--white);
    font-size: 2rem;
}

.step h3 {
    margin-bottom: 15px;
    color: var(--dark);
}

.step p {
    color: var(--gray);
}

/* Campaign Detail Styles */
.campaign-detail {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.campaign-header {
    position: relative;
}

.campaign-hero-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.campaign-info {
    padding: 30px;
    background: linear-gradient(135deg, var(--primary), #6a11cb);
    color: white;
}

.campaign-info h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.campaign-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.8rem;
    font-weight: bold;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.progress-container.large {
    margin: 20px 0;
}

.progress-container.large .progress-bar {
    height: 12px;
}

.progress-text {
    text-align: center;
    margin-top: 10px;
    font-weight: 600;
}

.campaign-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    padding: 40px;
}

.campaign-description h2 {
    margin-bottom: 20px;
    color: var(--dark);
}

.campaign-description p {
    line-height: 1.8;
    color: var(--gray);
}

.donation-box {
    background: #f8f9fa;
    padding: 25px;
    border-radius: var(--border-radius);
    position: sticky;
    top: 100px;
}

.donation-box h3 {
    margin-bottom: 20px;
    text-align: center;
    color: var(--dark);
}

.security-note {
    text-align: center;
    margin-top: 15px;
    color: var(--gray);
    font-size: 0.9rem;
}

.recent-donations {
    padding: 0 40px 40px;
}

.recent-donations h2 {
    margin-bottom: 20px;
    color: var(--dark);
}

.donations-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.donation-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background: #f8f9fa;
    border-radius: var(--border-radius);
}

.donor-info strong {
    color: var(--dark);
}

.donor-message {
    margin: 5px 0 0 0;
    color: var(--gray);
    font-style: italic;
}

.donation-amount {
    text-align: right;
    font-weight: bold;
    color: var(--success);
}

.donation-amount small {
    display: block;
    font-weight: normal;
    color: var(--gray);
    margin-top: 5px;
}

/* Create Campaign Styles */
.create-campaign-container {
    max-width: 800px;
    margin: 30px auto;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.create-campaign-header {
    background: linear-gradient(135deg, var(--primary), #6a11cb);
    color: white;
    padding: 40px;
    text-align: center;
}

.create-campaign-header h1 {
    margin-bottom: 10px;
    font-size: 2.2rem;
}

.create-campaign-header p {
    opacity: 0.9;
    font-size: 1.1rem;
}

.campaign-form {
    padding: 40px;
}

.form-section {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid #e9ecef;
}

.form-section:last-of-type {
    border-bottom: none;
}

.form-section h2 {
    color: var(--primary);
    margin-bottom: 25px;
    font-size: 1.4rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ced4da;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.25);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-help {
    display: block;
    margin-top: 5px;
    color: var(--gray);
    font-size: 0.85rem;
}

/* Upload de Imagem */
.file-upload {
    position: relative;
    margin-bottom: 10px;
}

.file-input {
    position: absolute;
    left: -9999px;
}

.file-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: #f8f9fa;
    border: 2px dashed #dee2e6;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    color: var(--gray);
}

.file-label:hover {
    border-color: var(--primary);
    background: #e9ecef;
    color: var(--primary);
}

.file-label i {
    font-size: 1.2rem;
}

.image-preview {
    margin-top: 15px;
}

.preview-container {
    position: relative;
    display: inline-block;
    margin-top: 10px;
}

.preview-container img {
    max-width: 200px;
    max-height: 150px;
    border-radius: var(--border-radius);
    border: 2px solid #e9ecef;
}

.remove-image {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 30px;
    height: 30px;
    background: var(--danger);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

.current-image {
    margin-bottom: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: var(--border-radius);
}

.current-image p {
    margin: 0 0 10px 0;
    font-weight: 600;
    color: var(--dark);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 3px;
}

.checkbox-group label {
    line-height: 1.4;
}

.form-actions {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
}

/* My Campaigns Styles */
.my-campaigns-header {
    text-align: center;
    margin: 40px 0;
}

.my-campaigns-header h1 {
    margin-bottom: 10px;
    color: var(--dark);
}

.my-campaigns-header p {
    color: var(--gray);
    margin-bottom: 20px;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray);
}

.empty-state i {
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state h2 {
    margin-bottom: 15px;
    color: var(--dark);
}

.campaign-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
}

.campaign-status {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-pending { background: #fff3cd; color: #856404; }
.status-active { background: #d4edda; color: #155724; }
.status-completed { background: #d1ecf1; color: #0c5460; }
.status-cancelled { background: #f8d7da; color: #721c24; }

.campaign-actions {
    display: flex;
    gap: 8px;
    margin-top: 15px;
}

/* Alert Styles */
.alert {
    padding: 15px;
    border-radius: var(--border-radius);
    margin: 20px 0;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Admin Styles */
.admin-panel {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    margin-top: 40px;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e9ecef;
}

.admin-title {
    font-size: 1.8rem;
    color: var(--dark);
}

.admin-tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 1px solid #e9ecef;
}

.admin-tab {
    padding: 12px 20px;
    cursor: pointer;
    font-weight: 500;
    color: var(--gray);
    transition: var(--transition);
    border-bottom: 2px solid transparent;
}

.admin-tab.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
}

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: var(--dark);
}

tr:hover {
    background-color: #f8f9fa;
}

.status-badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-pending {
    background-color: #fff3cd;
    color: #856404;
}

.status-completed {
    background-color: #d4edda;
    color: #155724;
}

.status-abandoned {
    background-color: #f8d7da;
    color: #721c24;
}

.action-btn {
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.8rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    margin-right: 5px;
}

.action-btn.view {
    background-color: var(--info);
    color: var(--white);
}

.action-btn.edit {
    background-color: var(--warning);
    color: var(--dark);
}

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

.action-btn.info {
    background-color: var(--info);
    color: var(--white);
}

/* Admin Dashboard Styles */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    display: flex;
    align-items: center;
    gap: 20px;
    border-left: 4px solid;
}

.stat-card.primary { border-left-color: var(--primary); }
.stat-card.success { border-left-color: var(--success); }
.stat-card.info { border-left-color: var(--info); }
.stat-card.warning { border-left-color: var(--warning); }

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-card.primary .stat-icon { background: rgba(74, 108, 247, 0.1); color: var(--primary); }
.stat-card.success .stat-icon { background: rgba(40, 167, 69, 0.1); color: var(--success); }
.stat-card.info .stat-icon { background: rgba(23, 162, 184, 0.1); color: var(--info); }
.stat-card.warning .stat-icon { background: rgba(255, 193, 7, 0.1); color: var(--warning); }

.stat-info h3 {
    font-size: 2rem;
    margin-bottom: 5px;
    color: var(--dark);
}

.stat-info p {
    color: var(--gray);
    margin: 0;
}

.dashboard-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

.dashboard-card {
    background: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.dashboard-card h3 {
    margin-bottom: 20px;
    color: var(--dark);
}

.campaigns-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.campaign-item {
    padding: 15px;
    border: 1px solid #e9ecef;
    border-radius: var(--border-radius);
}

.campaign-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 10px;
}

.campaign-header h4 {
    margin: 0;
    font-size: 0.9rem;
    flex: 1;
    margin-right: 15px;
}

.campaign-amount {
    font-weight: bold;
    color: var(--success);
    white-space: nowrap;
}

.campaign-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--gray);
    margin-top: 5px;
}

.badge {
    background: var(--primary);
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Login Form */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary), #6a11cb);
}

.login-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 100%;
    max-width: 400px;
}

.login-form h2 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--dark);
}

/* Footer */
footer {
    background-color: var(--dark);
    color: var(--white);
    padding: 40px 0 20px;
    margin-top: 60px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 30px;
}

.footer-column {
    flex: 1;
    min-width: 200px;
    margin-bottom: 20px;
}

.footer-title {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #adb5bd;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #495057;
    color: #adb5bd;
    font-size: 0.9rem;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1001;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: var(--white);
    margin: 5% auto;
    padding: 30px;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    right: 20px;
    top: 15px;
}

.close:hover {
    color: var(--dark);
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        padding: 15px 0;
    }

    .nav-links {
        margin: 15px 0;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-links li {
        margin: 5px 10px;
    }

    .auth-buttons {
        margin-top: 10px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .admin-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .admin-tabs {
        flex-wrap: wrap;
    }

    .admin-tab {
        flex: 1;
        min-width: 120px;
        text-align: center;
    }

    .campaigns-grid {
        grid-template-columns: 1fr;
    }

    .campaign-content {
        grid-template-columns: 1fr;
        padding: 20px;
    }

    .campaign-stats {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .campaign-info h1 {
        font-size: 2rem;
    }

    .dashboard-content {
        grid-template-columns: 1fr;
    }

    .donation-item {
        flex-direction: column;
        align-items: start;
        gap: 10px;
    }

    .donation-amount {
        text-align: left;
    }

    .create-campaign-header {
        padding: 30px 20px;
    }

    .campaign-form {
        padding: 20px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .create-campaign-header h1 {
        font-size: 1.8rem;
    }

    .campaign-actions {
        flex-direction: column;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }
}