/**
 * ========================================
 * BUTTONS - Estilos base para botões
 * Variações de cor, tamanho e estado
 * ========================================
 */

/* ===== BUTTON BASE ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.625rem 1.25rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    user-select: none;
    font-family: inherit;
    text-decoration: none;
    line-height: 1.5;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.btn:focus-visible {
    outline: 2px solid var(--color-accent-primary);
    outline-offset: 2px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ===== BUTTON SIZES ===== */
.btn-sm {
    padding: 0.5rem 0.875rem;
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: var(--font-size-lg);
}

.btn-block {
    width: 100%;
}

/* ===== BUTTON VARIANTS ===== */
.btn-primary {
    background-color: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    color: var(--color-text-white);
}

.btn-primary:hover {
    background-color: #8a0ca1;
    border-color: #8a0ca1;
}

.btn-primary:active {
    background-color: #7a0a8c;
    border-color: #7a0a8c;
}

.btn-secondary {
    background-color: var(--color-dark-secondary);
    border-color: var(--color-border-dark);
    color: var(--color-text-light);
}

.btn-secondary:hover {
    background-color: var(--color-dark-tertiary);
    border-color: var(--color-text-muted);
}

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

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

.btn-danger {
    background-color: var(--color-accent-red);
    border-color: var(--color-accent-red);
    color: var(--color-text-white);
}

.btn-danger:hover {
    background-color: #dc2626;
    border-color: #dc2626;
}

.btn-warning {
    background-color: var(--color-accent-orange);
    border-color: var(--color-accent-orange);
    color: var(--color-text-white);
}

.btn-warning:hover {
    background-color: #ea580c;
    border-color: #ea580c;
}

.btn-info {
    background-color: var(--color-accent-blue);
    border-color: var(--color-accent-blue);
    color: var(--color-text-white);
}

.btn-info:hover {
    background-color: #2563eb;
    border-color: #2563eb;
}

/* ===== BUTTON OUTLINES ===== */
.btn-outline-primary {
    background-color: transparent;
    border-color: var(--color-accent-primary);
    color: var(--color-accent-primary);
}

.btn-outline-primary:hover {
    background-color: rgba(158, 13, 187, 0.1);
    border-color: var(--color-accent-primary);
}

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

.btn-outline-secondary:hover {
    background-color: rgba(0, 0, 0, 0.05);
    border-color: var(--color-text-dark);
}

/* ===== BUTTON STATES ===== */
.btn:disabled,
.btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.btn.loading {
    pointer-events: none;
    opacity: 0.75;
}

.btn.loading::after {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    margin-left: 6px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-text-white);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

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

/* ===== ICON BUTTONS ===== */
.btn-icon {
    padding: 0.5rem;
    min-width: 40px;
    min-height: 40px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon-sm {
    padding: 0.375rem;
    min-width: 32px;
    min-height: 32px;
}

.btn-icon-lg {
    padding: 0.75rem;
    min-width: 48px;
    min-height: 48px;
}

/* ===== BUTTON GROUP ===== */
.btn-group {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-group.vertical {
    flex-direction: column;
}

/* ===== LINK BUTTONS ===== */
.btn-link {
    background-color: transparent;
    border: none;
    color: var(--color-accent-primary);
    padding: 0;
    text-decoration: underline;
}

.btn-link:hover {
    color: #8a0ca1;
    box-shadow: none;
    transform: none;
}

/* ===== DARK THEME BUTTONS ===== */
body.admin-theme .btn-secondary {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--color-text-light);
}

body.admin-theme .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

/* ===== ADMIN GLASS BUTTONS ===== */
body.admin-layout .btn {
    box-shadow: 0 10px 22px rgba(8, 10, 20, 0.25);
}

body.admin-layout .btn.btn-primary {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.9), rgba(124, 58, 237, 0.75));
    border-color: rgba(139, 92, 246, 0.7);
    color: #ffffff;
    box-shadow: 0 14px 28px rgba(139, 92, 246, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

body.admin-layout .btn.btn-primary:hover {
    background: linear-gradient(135deg, rgba(139, 92, 246, 1), rgba(124, 58, 237, 0.9));
    border-color: rgba(139, 92, 246, 0.85);
    box-shadow: 0 18px 36px rgba(139, 92, 246, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

body.admin-layout .btn.btn-outline-secondary {
    background: rgba(15, 23, 42, 0.45);
    border-color: rgba(255, 255, 255, 0.16);
    color: #e2e8f0;
    backdrop-filter: blur(12px) saturate(140%);
    -webkit-backdrop-filter: blur(12px) saturate(140%);
}

body.admin-layout .btn.btn-outline-secondary:hover {
    background: rgba(139, 92, 246, 0.18);
    border-color: rgba(139, 92, 246, 0.55);
    color: #ffffff;
}

body.admin-layout .btn.btn-outline-secondary.active,
body.admin-layout .btn.btn-outline-secondary:focus-visible {
    background: rgba(139, 92, 246, 0.32);
    border-color: rgba(139, 92, 246, 0.7);
    color: #ffffff;
}

body.admin-layout .admin-view-toggle .btn {
    border-radius: var(--radius-full);
    padding: 0.5rem 1rem;
}

body.admin-layout .btn.btn-secondary {
    background: rgba(15, 23, 42, 0.55);
    border-color: rgba(255, 255, 255, 0.18);
    color: #e2e8f0;
    box-shadow: 0 12px 24px rgba(8, 10, 20, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px) saturate(140%);
    -webkit-backdrop-filter: blur(12px) saturate(140%);
}

body.admin-layout .btn.btn-secondary:hover {
    background: rgba(139, 92, 246, 0.2);
    border-color: rgba(139, 92, 246, 0.6);
    color: #ffffff;
}

body.admin-layout .btn.btn-secondary:active,
body.admin-layout .btn.btn-secondary.active,
body.admin-layout .btn.btn-secondary:focus-visible {
    background: rgba(139, 92, 246, 0.32);
    border-color: rgba(139, 92, 246, 0.7);
    color: #ffffff;
    box-shadow: 0 14px 28px rgba(139, 92, 246, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}