/* ============================================================
   SENIN ANONIM — COMPONENTS CSS
   Buttons, Inputs, Modals, Common UI Elements
   ============================================================ */

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: var(--radius-md);
    transition: all var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px var(--primary-glow);
}
.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}
.btn-outline:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--success);
    color: #fff;
    border-color: var(--success);
}
.btn-success:hover {
    background: #0da371;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.btn-danger {
    background: transparent;
    color: var(--danger);
    border-color: var(--danger);
}
.btn-danger:hover {
    background: var(--danger-light);
    transform: translateY(-1px);
}

.btn-full {
    width: 100%;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.88rem;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    transition: all var(--transition);
    color: var(--text-secondary);
}
.btn-icon:hover {
    background: var(--border);
    color: var(--text);
}
.btn-icon svg {
    width: 20px;
    height: 20px;
}

.btn-loader {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.2s ease;
}

.modal-card {
    background: var(--bg-card-solid);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-xl);
    animation: modalSlideUp 0.3s ease;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}
.modal-close:hover {
    background: var(--border);
    color: var(--text);
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 24px 0;
}

.modal-avatar {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    object-fit: cover;
}

.modal-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text);
}

.modal-subtitle {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.modal-body {
    padding: 20px 24px;
}

.modal-textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-family: var(--font);
    font-size: 0.95rem;
    color: var(--text);
    resize: none;
    transition: border-color var(--transition);
    line-height: 1.5;
}
.modal-textarea:focus {
    border-color: var(--border-focus);
}
.modal-textarea::placeholder {
    color: var(--text-muted);
}

.modal-char-count {
    text-align: right;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.modal-footer {
    display: flex;
    gap: 12px;
    padding: 0 24px 24px;
    justify-content: flex-end;
}

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

/* --- Empty State --- */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 24px;
    text-align: center;
    gap: 16px;
}
.empty-state svg {
    width: 56px;
    height: 56px;
    color: var(--text-muted);
    opacity: 0.4;
}
.empty-state p {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
}