/* ========================================
   DnD-Hub - COMPONENT STYLES
   Buttons, cards, forms, modals, etc.
   ======================================== */

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-ui);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--bg-darkest);
    border: 1px solid var(--color-primary);
    box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255,255,255,0.2);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: rgba(201, 162, 39, 0.1);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-medium);
}

.btn-ghost:hover {
    color: var(--text-primary);
    border-color: var(--color-primary);
    background: rgba(201, 162, 39, 0.05);
}

.btn-danger {
    background: linear-gradient(135deg, var(--color-accent-red) 0%, #a33330 100%);
    color: white;
    border: 1px solid var(--color-accent-red);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #d94a46 0%, var(--color-accent-red) 100%);
    box-shadow: 0 0 20px rgba(199, 62, 58, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--color-accent-green) 0%, #236b3c 100%);
    color: white;
    border: 1px solid var(--color-accent-green);
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-base);
}

.btn-sm {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--font-size-xs);
}

.btn-xs {
    width: 28px;
    height: 28px;
    min-width: 28px;
    padding: 0;
    font-size: var(--font-size-xs);
}

input.no-spinner[type='number']::-webkit-inner-spin-button,
input.no-spinner[type='number']::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input.no-spinner[type='number'] {
    -moz-appearance: textfield;
    appearance: textfield;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-full);
}

.btn-icon svg {
    width: 20px;
    height: 20px;
}

/* === Cards === */
.card {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

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

.card-image {
    position: relative;
    width: 100%;
    height: 180px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card:hover .card-image img {
    transform: scale(1.05);
}

.card-image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-md);
    background: linear-gradient(to top, rgba(10, 10, 15, 0.9), transparent);
}

.card-body {
    padding: var(--space-lg);
}

.card-title {
    font-family: var(--font-display);
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.card-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.card-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

/* Session Card Specific */
.session-card {
    position: relative;
}

.session-card .card-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(10, 10, 15, 0.8);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    font-family: var(--font-ui);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    z-index: 2;
}

.session-card .card-badge.online {
    color: var(--color-accent-cyan);
    border-color: var(--color-accent-cyan);
}

.session-card .card-badge.offline {
    color: var(--color-accent-green);
    border-color: var(--color-accent-green);
}

.session-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.meta-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    font-family: var(--font-ui);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.meta-tag svg {
    width: 12px;
    height: 12px;
}

/* === Rating === */
.rating {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

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

.rating-star {
    width: 16px;
    height: 16px;
    color: var(--bg-lighter);
}

.rating-star.filled {
    color: var(--color-primary);
}

.rating-star.half {
    background: linear-gradient(90deg, var(--color-primary) 50%, var(--bg-lighter) 50%);
    -webkit-background-clip: text;
    background-clip: text;
}

.rating-value {
    font-family: var(--font-ui);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.rating-count {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* === Forms === */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-family: var(--font-ui);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--space-md);
    background: var(--bg-dark);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-ui);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

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

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-select {
    appearance: none;
    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='%23b8b0a0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-md) center;
    padding-right: var(--space-2xl);
    cursor: pointer;
}

.form-checkbox,
.form-radio {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.form-checkbox input,
.form-radio input {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

.form-hint {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

.form-error {
    font-size: var(--font-size-xs);
    color: var(--status-error);
    margin-top: var(--space-xs);
}

/* === Search Input === */
.search-input-wrapper {
    position: relative;
}

.search-input-wrapper svg {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-muted);
}

.search-input {
    padding-left: calc(var(--space-md) * 2 + 20px);
}

/* === Tags === */
.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-light);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-family: var(--font-ui);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.tag:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.tag-primary {
    background: rgba(201, 162, 39, 0.15);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.tag-removable {
    cursor: pointer;
}

.tag-removable .tag-remove {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast);
}

.tag-removable:hover .tag-remove {
    background: rgba(199, 62, 58, 0.3);
    color: var(--status-error);
}

/* === Avatar === */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 2px solid var(--border-medium);
    flex-shrink: 0;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: var(--font-size-sm);
    color: white;
}

.avatar-sm { width: 32px; height: 32px; }
.avatar-lg { width: 60px; height: 60px; }
.avatar-xl { width: 100px; height: 100px; }

.avatar-group {
    display: flex;
}

.avatar-group .avatar {
    margin-left: -10px;
}

.avatar-group .avatar:first-child {
    margin-left: 0;
}

/* === Modal === */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: var(--surface-modal);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-modal);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.modal-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-family: var(--font-display);
    font-size: var(--font-size-xl);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

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

.modal-body {
    padding: var(--space-lg);
    overflow-y: auto;
    max-height: calc(90vh - 140px);
}

.modal-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
}

/* === Tabs === */
.tabs {
    display: flex;
    gap: var(--space-sm);
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: var(--space-xl);
    overflow-x: auto;
    scrollbar-width: none;
}

.tabs::-webkit-scrollbar {
    display: none;
}

.tab {
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-ui);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-muted);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.tab:hover {
    color: var(--text-secondary);
}

.tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* === Notifications / Toasts === */
.notifications-container {
    position: fixed;
    top: calc(var(--nav-height) + var(--space-md));
    right: var(--space-md);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    max-width: 400px;
}

.notification {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--surface-modal);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s ease;
}

.notification-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.notification-success .notification-icon { color: var(--status-success); }
.notification-error .notification-icon { color: var(--status-error); }
.notification-warning .notification-icon { color: var(--status-warning); }
.notification-info .notification-icon { color: var(--status-info); }

.notification-content {
    flex: 1;
}

.notification-title {
    font-family: var(--font-ui);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.notification-message {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

.notification-close {
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.notification-close:hover {
    color: var(--text-primary);
}

/* === Tooltip === */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-lighter);
    border-radius: var(--radius-sm);
    font-family: var(--font-ui);
    font-size: var(--font-size-xs);
    color: var(--text-primary);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    pointer-events: none;
    z-index: var(--z-dropdown);
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-4px);
}

/* === Dropdown === */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background: var(--surface-modal);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-ui);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.dropdown-item:hover {
    background: var(--bg-light);
    color: var(--text-primary);
}

.dropdown-item svg {
    width: 16px;
    height: 16px;
}

.dropdown-divider {
    height: 1px;
    background: var(--border-subtle);
    margin: var(--space-xs) 0;
}

/* === Dice Roller === */
.dice-roller {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-dark);
    border-radius: var(--radius-md);
}

.dice-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-medium);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.dice-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.dice-result {
    font-family: var(--font-display);
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    min-width: 80px;
    text-align: center;
    text-shadow: var(--shadow-glow);
}

/* === Progress Bar === */
.progress {
    height: 8px;
    background: var(--bg-dark);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary));
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-bar.animated {
    background-size: 30px 30px;
    background-image: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.15) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.15) 50%,
        rgba(255, 255, 255, 0.15) 75%,
        transparent 75%
    );
    animation: progressStripes 1s linear infinite;
}

@keyframes progressStripes {
    from { background-position: 30px 0; }
    to { background-position: 0 0; }
}

/* === Badge === */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 var(--space-xs);
    background: var(--color-primary);
    border-radius: var(--radius-full);
    font-family: var(--font-ui);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--bg-darkest);
}

.badge-secondary {
    background: var(--color-secondary);
    color: white;
}

.badge-outline {
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}

/* === Skeleton Loading === */
.skeleton {
    background: linear-gradient(90deg, var(--bg-dark) 25%, var(--bg-medium) 50%, var(--bg-dark) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 1em;
    margin-bottom: var(--space-sm);
}

.skeleton-text:last-child {
    width: 60%;
}

.skeleton-circle {
    border-radius: var(--radius-full);
}