/* frontend/css/components.css */
/* Reusable component styles */

/* === Button Components === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    line-height: var(--leading-tight);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-all);
    user-select: none;
    white-space: nowrap;
    
    /* Remove default button styles */
    background: none;
    outline: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button Sizes */
.btn-sm {
    height: var(--btn-height-sm);
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--text-xs);
}

.btn-lg {
    height: var(--btn-height-lg);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--text-base);
}

/* Button Variants */
.btn-primary {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.btn-primary:hover:not(:disabled) {
    background: var(--accent-primary-hover);
    border-color: var(--accent-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-tertiary);
    border-color: var(--border-secondary);
}

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

.btn-success:hover:not(:disabled) {
    background: #059669;
    border-color: #059669;
    transform: translateY(-1px);
}

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

.btn-error:hover:not(:disabled) {
    background: #dc2626;
    border-color: #dc2626;
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Special Buttons */
.go-live-btn {
    background: linear-gradient(135deg, var(--live-red), #dc2626);
    color: white;
    border: none;
    padding: var(--spacing-3) var(--spacing-6);
    font-weight: var(--font-semibold);
    position: relative;
    overflow: hidden;
}

.go-live-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--live-red-glow);
}

.go-live-btn.live {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* === Form Components === */
.form-group {
    margin-bottom: var(--spacing-5);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    height: var(--input-height);
    padding: var(--input-padding-y) var(--input-padding-x);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    transition: var(--transition-colors);
}

.form-textarea {
    height: auto;
    resize: vertical;
    min-height: calc(var(--input-height) * 2);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-light);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-secondary);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
    background: var(--bg-quaternary);
    color: var(--text-disabled);
    cursor: not-allowed;
}

.form-error {
    border-color: var(--error);
}

.form-error:focus {
    border-color: var(--error);
    box-shadow: 0 0 0 3px var(--error-light);
}

.form-help-text {
    margin-top: var(--spacing-1);
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

.form-error-text {
    margin-top: var(--spacing-1);
    font-size: var(--text-xs);
    color: var(--error);
}

/* === Card Components === */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--card-radius);
    padding: var(--card-padding);
    transition: var(--transition-all);
}

.card:hover {
    border-color: var(--border-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    margin-bottom: var(--spacing-4);
    padding-bottom: var(--spacing-4);
    border-bottom: 1px solid var(--border-primary);
}

.card-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin: 0;
}

.card-subtitle {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin: var(--spacing-1) 0 0 0;
}

.card-body {
    padding: var(--spacing-4) 0;
}

.card-footer {
    margin-top: var(--spacing-4);
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--border-primary);
}

/* Action Cards */
.action-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--card-radius);
    padding: var(--spacing-5);
    cursor: pointer;
    transition: var(--transition-all);
    display: block;
    text-decoration: none;
    color: inherit;
}

.action-card:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.action-icon {
    display: block;
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-3);
}

.action-title {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--spacing-1);
    color: var(--text-primary);
}

.action-desc {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

/* === Modal Components === */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(var(--blur-sm));
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    padding: var(--modal-padding);
    max-width: var(--modal-max-width);
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn var(--animation-duration-normal) ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: var(--spacing-4);
    right: var(--spacing-4);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: var(--text-xl);
    cursor: pointer;
    line-height: 1;
    padding: var(--spacing-2);
    border-radius: var(--radius-md);
    transition: var(--transition-colors);
}

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* === Navigation Components === */
.nav-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-3) var(--spacing-5);
    color: var(--text-primary);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-all);
    border-left: 3px solid transparent;
    user-select: none;
}

.nav-item:hover {
    background: var(--accent-primary-light);
    border-left-color: var(--accent-primary);
    color: var(--accent-primary);
}

.nav-item.active {
    background: var(--accent-primary-medium);
    border-left-color: var(--accent-primary);
    color: var(--accent-primary);
    font-weight: var(--font-medium);
}

.nav-icon {
    margin-right: var(--spacing-3);
    font-size: var(--text-base);
    width: 20px;
    text-align: center;
}

.nav-title {
    padding: 0 var(--spacing-5) var(--spacing-2);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* === Search Components === */
.search-container {
    display: flex;
    gap: var(--spacing-2);
    max-width: 400px;
    width: 100%;
}

.search-input {
    flex: 1;
    height: var(--input-height);
    padding: var(--input-padding-y) var(--input-padding-x);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--text-sm);
    transition: var(--transition-colors);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-light);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

.search-btn {
    height: var(--input-height);
    padding: 0 var(--spacing-3);
    background: var(--accent-primary);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-md);
    color: white;
    cursor: pointer;
    transition: var(--transition-all);
}

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

/* === Status Components === */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-live {
    background: var(--error-light);
    color: var(--error);
}

.status-offline {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.status-online {
    background: var(--success-light);
    color: var(--success);
}

.live-dot {
    width: 8px;
    height: 8px;
    background: var(--live-red);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

/* === Avatar Components === */
.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--accent-primary);
    color: white;
    font-weight: var(--font-semibold);
    text-transform: uppercase;
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: var(--text-sm);
}

.avatar-md {
    width: 40px;
    height: 40px;
    font-size: var(--text-base);
}

.avatar-lg {
    width: 48px;
    height: 48px;
    font-size: var(--text-lg);
}

.avatar-xl {
    width: 64px;
    height: 64px;
    font-size: var(--text-xl);
}

/* === Notification/Toast Components === */
.notification {
    position: fixed;
    top: var(--spacing-5);
    right: var(--spacing-5);
    padding: var(--spacing-4) var(--spacing-6);
    border-radius: var(--radius-lg);
    color: white;
    font-weight: var(--font-medium);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-toast);
    max-width: 400px;
    animation: slideInRight var(--animation-duration-normal) ease-out;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.notification-success {
    background: var(--success);
}

.notification-error {
    background: var(--error);
}

.notification-warning {
    background: var(--warning);
}

.notification-info {
    background: var(--info);
}

/* === Loading Components === */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--bg-tertiary);
    border-radius: 50%;
    border-top-color: var(--accent-primary);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner-lg {
    width: 32px;
    height: 32px;
    border-width: 3px;
}

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(var(--blur-sm));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
}

/* === Stream Components === */
.stream-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--card-radius);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-all);
}

.stream-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stream-thumbnail {
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.stream-thumbnail img,
.stream-thumbnail video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.stream-overlay {
    position: absolute;
    top: var(--spacing-2);
    left: var(--spacing-2);
    right: var(--spacing-2);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.stream-info {
    padding: var(--spacing-4);
}

.stream-title {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-1);
    line-height: var(--leading-tight);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.stream-username {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2);
}

.stream-category {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-2);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: var(--text-xs);
    border-radius: var(--radius-base);
}

.viewer-count {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    font-size: var(--text-sm);
    color: var(--viewer-count);
    font-weight: var(--font-medium);
}

.viewer-count::before {
    content: "👁";
    font-size: var(--text-xs);
}

/* === Empty State Components === */
.empty-state {
    text-align: center;
    padding: var(--spacing-16) var(--spacing-4);
    color: var(--text-secondary);
}

.empty-icon {
    font-size: var(--text-5xl);
    margin-bottom: var(--spacing-4);
}

.empty-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
}

.empty-description {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    max-width: 400px;
    margin: 0 auto;
}

/* === Filter Components === */
.filters {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
    flex-wrap: wrap;
}

.filter-select {
    padding: var(--spacing-2) var(--spacing-3);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: var(--transition-colors);
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* === Grid Components === */
.grid {
    display: grid;
    gap: var(--spacing-6);
}

.grid-cols-1 {
    grid-template-columns: repeat(1, 1fr);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-auto-fit {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-auto-fill {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

/* === Utility Components === */
.divider {
    width: 100%;
    height: 1px;
    background: var(--border-primary);
    margin: var(--spacing-4) 0;
}

.divider-vertical {
    width: 1px;
    height: 100%;
    background: var(--border-primary);
    margin: 0 var(--spacing-4);
}

.glassmorphism {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(var(--blur-md));
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* === Responsive Helpers === */
.mobile-only {
    display: none;
}

.desktop-only {
    display: block;
}

@media (max-width: 768px) {
    .mobile-only {
        display: block;
    }
    
    .desktop-only {
        display: none;
    }
    
    .modal-content {
        margin: var(--spacing-4);
        padding: var(--spacing-6);
    }
    
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
    
    .filters {
        flex-direction: column;
    }
}

/* === Animation Classes === */
.fade-in {
    animation: fadeIn var(--animation-duration-normal) ease-out;
}

.slide-in-up {
    animation: slideInUp var(--animation-duration-normal) ease-out;
}

.slide-in-down {
    animation: slideInDown var(--animation-duration-normal) ease-out;
}

.scale-in {
    animation: scaleIn var(--animation-duration-normal) ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}