:root {
    --primary-color: #60A5FA;
    --primary-dark: #3B82F6;
    --secondary-color: #93C5FD;
    --bg-color: #F8FAFC;
    --card-bg: #FFFFFF;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --border-color: #E2E8F0;
    --success-color: #10B981;
    --danger-color: #EF4444;
    --warning-color: #F59E0B;
    --diff-1: #10B981;
    --diff-2: #34D399;
    --diff-3: #6EE7B7;
    --diff-4: #FBBF24;
    --diff-5: #F59E0B;
    --diff-6: #FB923C;
    --diff-7: #F97316;
    --diff-8: #EF4444;
    --diff-9: #DC2626;
    --diff-10: #991B1B;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    padding-bottom: 80px;
    line-height: 1.6;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 20px;
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 20px;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.2s;
}

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

/* Auth Forms */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 32px 24px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.auth-card h2 {
    font-size: 24px;
    margin-bottom: 24px;
    text-align: center;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    background: var(--card-bg);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 12px;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    transition: all 0.2s;
}

.form-group select:hover {
    border-color: var(--primary-color);
    background-color: var(--bg-color);
}

.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1);
}

.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    font-family: inherit;
    resize: vertical;
    min-height: 100px;
}

.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn {
    width: 100%;
    padding: 14px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

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

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

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

.auth-links {
    margin-top: 20px;
    text-align: center;
}

.auth-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
}

.alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-success {
    background: #D1FAE5;
    color: #065F46;
}

.alert-error {
    background: #FEE2E2;
    color: #991B1B;
}

/* Dashboard */
.main-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 32px;
}

.main-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px 16px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    color: var(--text-primary);
}

.main-btn:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.main-btn-icon {
    font-size: 32px;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.main-btn-label {
    font-size: 14px;
    font-weight: 500;
}

/* Favorites Section */
.favorites-section {
    margin-bottom: 32px;
}

.section-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.favorites-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.favorite-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.favorite-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.favorite-card-image {
    width: 100%;
    height: 120px;
    object-fit: cover;
    background: var(--bg-color);
}

.favorite-card-content {
    padding: 12px;
}

.favorite-card-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.favorite-heart {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s;
}

.favorite-heart:hover {
    transform: scale(1.1);
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    margin-bottom: 12px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.card-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    background: var(--bg-color);
}

.card-content {
    padding: 16px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

.card-heart {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 18px;
    transition: all 0.2s;
}

.card-heart:hover {
    transform: scale(1.1);
}

/* Filters */
.filters {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.filter-row {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.filter-row:last-child {
    margin-bottom: 0;
}

.filter-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* Add Button */
.add-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 28px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(96,165,250,0.4);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99;
}

.add-btn:hover {
    transform: scale(1.1);
    background: var(--primary-dark);
}

.add-btn-small {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.add-btn-small:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Gym Detail */
.gym-header {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 20px;
    display: flex;
    gap: 16px;
    align-items: center;
}

.gym-header-image {
    width: 80px;
    height: 80px;
    border-radius: 10px;
    object-fit: cover;
    background: var(--bg-color);
}

.gym-header-info h2 {
    font-size: 18px;
    margin-bottom: 4px;
}

.gym-header-info p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Star Rating */
.star-rating {
    display: flex;
    gap: 4px;
    align-items: center;
    margin-top: 8px;
}

.stars {
    display: flex;
    gap: 2px;
}

.star {
    font-size: 16px;
    color: #FBBF24;
    cursor: pointer;
    transition: all 0.2s;
}

.star.empty {
    color: #E5E7EB;
}

.star:hover {
    transform: scale(1.1);
}

.rating-info {
    font-size: 13px;
    color: var(--text-secondary);
    margin-left: 8px;
}

.rating-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--bg-color);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 600;
    margin-top: 8px;
}

.rating-badge .star {
    font-size: 14px;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 8px 0;
    z-index: 100;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 4px 8px;
    text-decoration: none;
    color: var(--text-secondary);
    transition: all 0.2s;
    flex: 1;
    max-width: 80px;
}

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

.nav-item-icon {
    font-size: 22px;
    line-height: 1;
    display: block;
}

.nav-item-label {
    font-size: 11px;
    font-weight: 500;
    text-align: center;
    line-height: 1.2;
    display: block;
    white-space: nowrap;
}


/* Block List */
.block-list {
    margin-bottom: 20px;
}

.block-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 8px;
    display: flex;
    align-items: stretch;
    gap: 0;
    cursor: pointer;
    transition: all 0.2s;
    overflow: hidden;
    position: relative;
}

.block-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.block-difficulty {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    z-index: 1;
}

.block-image {
    width: 80px;
    height: 80px;
    object-fit: cover;
    background: var(--bg-color);
    flex-shrink: 0;
}

.block-info {
    flex: 1;
    min-width: 0;
    padding: 12px;
}

.block-group {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.block-meta {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.block-stats {
    position: absolute;
    bottom: 8px;
    right: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary-color);
    background: rgba(255, 255, 255, 0.95);
    padding: 4px 8px;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    z-index: 1;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    overflow-y: auto;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 16px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    background: var(--card-bg);
    z-index: 10;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 4px;
    line-height: 1;
}

.modal-body {
    padding: 20px;
}

.modal-image {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 20px;
    cursor: pointer;
}

.modal-info {
    margin-bottom: 24px;
}

.modal-info-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.modal-info-label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 14px;
}

.modal-info-value {
    font-size: 14px;
    color: var(--text-primary);
}

.modal-actions {
    padding: 20px;
    border-top: 1px solid var(--border-color);
}

.btn-text {
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    padding: 12px;
    width: 100%;
    border-radius: 10px;
    transition: background 0.2s;
}

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

.confirmation-buttons {
    display: flex;
    gap: 12px;
    margin-top: 12px;
}

.confirmation-buttons .btn {
    width: auto;
    flex: 1;
}

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

.btn-success:hover {
    background: #059669;
}

/* File Upload */
.file-upload {
    position: relative;
    margin-bottom: 20px;
}

.file-upload input[type="file"] {
    display: none;
}

.file-upload-label {
    display: block;
    padding: 40px 20px;
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-secondary);
}

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

.file-upload-preview {
    width: 100%;
    max-height: 200px;
    object-fit: cover;
    border-radius: 12px;
    margin-top: 12px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-text {
    font-size: 16px;
}

/* Datalist suggestions */
.suggestions {
    position: absolute;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    max-height: 200px;
    overflow-y: auto;
    width: 100%;
    z-index: 10;
    margin-top: 4px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.suggestion-item {
    padding: 12px 16px;
    cursor: pointer;
    transition: background 0.2s;
}

.suggestion-item:hover {
    background: var(--bg-color);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.mt-4 {
    margin-top: 32px;
}

.mb-4 {
    margin-bottom: 32px;
}

/* Multiple Images Upload */
.images-preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 12px;
}

.image-preview-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    aspect-ratio: 1;
}

.image-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-preview-remove {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 24px;
    height: 24px;
    background: rgba(239, 68, 68, 0.9);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.image-preview-remove:hover {
    background: #DC2626;
    transform: scale(1.1);
}

/* Group Tags */
.groups-input-container {
    position: relative;
}

.groups-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
    padding: 12px;
    background: var(--bg-color);
    border-radius: 10px;
    min-height: 46px;
}

.group-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.group-tag-remove {
    background: rgba(255, 255, 255, 0.3);
    border: none;
    color: white;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    padding: 0;
    line-height: 1;
}

.group-tag-remove:hover {
    background: rgba(255, 255, 255, 0.5);
}

.groups-tags-empty {
    color: var(--text-secondary);
    font-size: 14px;
    font-style: italic;
}

/* Block group display */
.block-groups {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 4px;
}

.block-group-badge {
    display: inline-block;
    padding: 2px 8px;
    background: var(--secondary-color);
    color: var(--primary-dark);
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

/* Google Maps Link */
.maps-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 8px;
    transition: all 0.2s;
    background: var(--bg-color);
    margin-top: 8px;
}

.maps-link:hover {
    background: var(--secondary-color);
    transform: translateX(2px);
}

/* Description */
.description-text {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 16px 0;
    padding: 16px;
    background: var(--bg-color);
    border-radius: 10px;
}

/* Image Gallery */
.image-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin: 16px 0;
}

.gallery-image {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
}

.gallery-image:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* Auth Required Modal */
.auth-required-content {
    text-align: center;
    padding: 40px 20px;
}

.auth-required-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.auth-required-content h3 {
    margin-bottom: 12px;
    font-size: 22px;
}

.auth-required-content p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 15px;
    line-height: 1.5;
}

.auth-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Responsive */
@media (max-width: 480px) {
    .main-buttons {
        gap: 8px;
    }
    
    .main-btn {
        padding: 20px 12px;
    }
    
    .main-btn-icon {
        font-size: 28px;
    }
    
    .main-btn-label {
        font-size: 12px;
    }
    
    .filter-row {
        flex-direction: column;
    }
}

/* Success Checkmark */
.success-checkmark {
    width: 80px;
    height: 80px;
    margin: 20px auto;
}

.checkmark-circle {
    stroke-dasharray: 166;
    stroke-dashoffset: 166;
    stroke-width: 2;
    stroke-miterlimit: 10;
    stroke: var(--success-color);
    fill: none;
    animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.checkmark-check {
    transform-origin: 50% 50%;
    stroke-dasharray: 48;
    stroke-dashoffset: 48;
    stroke: var(--success-color);
    animation: stroke 0.3s cubic-bezier(0.65, 0, 0.45, 1) 0.8s forwards;
}

@keyframes stroke {
    100% {
        stroke-dashoffset: 0;
    }
}

/* Gym Logo Overlay */
.gym-logo-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.gym-logo-overlay.fade-out {
    opacity: 0;
    pointer-events: none;
}

.gym-logo-content {
    text-align: center;
}

.gym-logo-content img {
    max-width: 200px;
    max-height: 200px;
    object-fit: contain;
    animation: logoFade 1.5s ease-in-out;
}

@keyframes logoFade {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}