/* ==========================================================
   ESports Platform — UI Components & Atoms
   ========================================================== */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
    text-align: center;
    white-space: nowrap;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary) 0%, #C62828 100%);
    color: #fff;
    box-shadow: 0 4px 15px var(--accent-primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-primary-hover) 0%, #D32F2F 100%);
    box-shadow: 0 6px 20px rgba(229, 57, 69, 0.45);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: #282835;
    border-color: var(--border-color-light);
    color: #fff;
}

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

.btn-outline:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(229, 57, 69, 0.05);
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    background: #c62828;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    border-color: var(--border-color-light);
}

.card-elevated {
    box-shadow: var(--shadow-card);
}

.card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3, .card-header h4 {
    color: var(--text-primary);
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.15);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    border-radius: var(--radius-sm);
}

.badge-paid {
    background: rgba(255, 181, 71, 0.15);
    color: var(--accent-secondary);
    border: 1px solid rgba(255, 181, 71, 0.35);
}

.badge-free {
    background: rgba(50, 201, 135, 0.15);
    color: var(--success);
    border: 1px solid rgba(50, 201, 135, 0.3);
}

.badge-live {
    background: rgba(229, 57, 69, 0.2);
    color: var(--accent-primary);
    border: 1px solid var(--accent-primary);
    animation: pulse-live 2s infinite;
}

@keyframes pulse-live {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.badge-status {
    background: var(--bg-elevated);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.badge-status.approved {
    background: rgba(50, 201, 135, 0.15);
    color: var(--success);
    border-color: var(--success);
}

.badge-status.pending {
    background: rgba(230, 173, 70, 0.15);
    color: var(--warning);
    border-color: var(--warning);
}

.badge-status.waitlisted {
    background: rgba(146, 146, 159, 0.15);
    color: var(--text-secondary);
    border-color: var(--text-secondary);
}

/* Alerts */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    border: 1px solid transparent;
}

.alert-success {
    background: rgba(50, 201, 135, 0.1);
    color: var(--success);
    border-color: rgba(50, 201, 135, 0.3);
}

.alert-error, .alert-danger {
    background: rgba(229, 57, 69, 0.1);
    color: #ff6b77;
    border-color: rgba(229, 57, 69, 0.35);
}

.alert-warning {
    background: rgba(230, 173, 70, 0.1);
    color: var(--warning);
    border-color: rgba(230, 173, 70, 0.3);
}

.alert-info {
    background: rgba(45, 140, 255, 0.1);
    color: #58a6ff;
    border-color: rgba(45, 140, 255, 0.3);
}

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

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(229, 57, 69, 0.15);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-help {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.form-error {
    font-size: 0.8rem;
    color: var(--danger);
    margin-top: 6px;
}

/* Tables */
.table-container {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.data-table th {
    background: var(--bg-elevated);
    padding: 14px 18px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 16px 18px;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 50px 20px;
}

.empty-state-icon {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.empty-state h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.empty-state p {
    font-size: 0.95rem;
    max-width: 440px;
    margin: 0 auto 20px;
    color: var(--text-secondary);
}

/* Modal Dialog */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-backdrop.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-elevated);
    animation: modalSlide 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalSlide {
    from { opacity: 0; transform: translateY(20px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}