/* --- Buttons ---------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.6rem;
    border-radius: var(--br-radius-sm);
    font-weight: 700;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: transform var(--br-transition-fast), box-shadow var(--br-transition-fast), background var(--br-transition-fast);
    text-align: center;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--br-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(25, 118, 243, 0.28);
}

.btn-primary:hover {
    background: var(--br-primary-dark);
    box-shadow: 0 8px 24px rgba(25, 118, 243, 0.34);
    color: #fff;
}

.btn-secondary {
    background: var(--br-surface);
    color: var(--br-primary);
    border: 1.5px solid var(--br-primary);
}

.btn-secondary:hover {
    background: var(--br-primary-very-light);
    color: var(--br-primary-dark);
}

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

.btn-danger:hover {
    background: #c62d2d;
    color: #fff;
}

.btn-glass {
    background: var(--br-glass);
    backdrop-filter: blur(var(--br-glass-blur));
    -webkit-backdrop-filter: blur(var(--br-glass-blur));
    border: 1px solid var(--br-glass-border);
    color: var(--br-text);
    box-shadow: var(--br-shadow);
}

.btn-glass:hover {
    background: var(--br-glass-strong);
    color: var(--br-text);
}

.btn-google {
    background: #fff;
    color: #172033;
    border: 1.5px solid #E2E8F0;
}

.btn-google:hover {
    background: #F8FAFC;
    color: #172033;
}

.btn-block {
    width: 100%;
    margin-top: var(--space-3);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.btn:disabled:hover {
    transform: none;
}

/* --- Cards ---------------------------------------------------------------- */
.card {
    background: var(--br-surface);
    border: 1px solid rgba(23, 32, 51, 0.06);
    border-radius: var(--br-radius-lg);
    padding: var(--space-4);
    box-shadow: var(--br-shadow-sm);
}

.card-glass {
    background: var(--br-glass);
    backdrop-filter: blur(var(--br-glass-blur));
    -webkit-backdrop-filter: blur(var(--br-glass-blur));
    border: 1px solid var(--br-glass-border);
    box-shadow: var(--br-shadow);
}

.card-status {
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.card-status[data-state="ok"] {
    color: var(--br-success);
}

.card-status[data-state="error"] {
    color: var(--br-danger);
}

/* --- Alerts ---------------------------------------------------------------- */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    padding: 0.9rem 1.1rem;
    border-radius: var(--br-radius-sm);
    font-size: 0.9rem;
    margin-bottom: var(--space-3);
}

.alert-success {
    background: var(--br-success-bg);
    color: #0f7a37;
    border: 1px solid rgba(22, 163, 74, 0.25);
}

.alert-error {
    background: var(--br-danger-bg);
    color: var(--br-danger);
    border: 1px solid rgba(226, 59, 59, 0.25);
}

/* --- Tags / Badges ---------------------------------------------------------- */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    background: var(--br-primary-very-light);
    color: var(--br-primary-dark);
    border-radius: var(--br-radius-pill);
    padding: 0.3rem 0.8rem;
    font-size: 0.8rem;
    font-weight: 600;
}