.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);height:50px;padding:0 25px;font-size:16px;font-weight:600;line-height:48px;border-radius:0;transition:all 0.5s;white-space:nowrap;text-transform:uppercase;letter-spacing:0.025em;border:none}.btn--primary{background-color:var(--color-primary);color:var(--color-black)}.btn--primary:hover{background-color:var(--color-primary-hover);color:var(--color-black)}.btn--secondary{background-color:var(--color-secondary);color:var(--color-white)}.btn--secondary:hover{background-color:var(--color-primary);color:var(--color-black)}.btn--outline{border:1px solid #bfbfbf;color:var(--color-black);background-color:transparent}.btn--outline:hover{border-color:var(--color-primary);background-color:var(--color-primary);color:var(--color-black)}.btn--sm{height:40px;line-height:38px;padding:0 20px;font-size:var(--font-size-xs)}.btn--lg{height:55px;line-height:53px;padding:0 35px;font-size:var(--font-size-base)}.badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;font-size:var(--font-size-xs);font-weight:var(--font-weight-bold);line-height:1;border-radius:var(--radius-full);background-color:var(--color-accent);color:var(--color-white)}.sale-badge{display:inline-block;padding:4px 10px;font-size:var(--font-size-xs);font-weight:var(--font-weight-bold);text-transform:uppercase;background-color:var(--color-accent);color:var(--color-white);border-radius:0}.form-input,.form-select{width:100%;height:50px;padding:0 15px;font-size:var(--font-size-sm);border:1px solid var(--color-border);border-radius:0;background-color:var(--color-white);transition:border-color 0.3s}.form-textarea{width:100%;padding:15px;font-size:var(--font-size-sm);border:1px solid var(--color-border);border-radius:0;background-color:var(--color-white);transition:border-color 0.3s;resize:vertical;min-height:120px}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--color-black)}.form-input::placeholder{color:var(--color-text-muted)}.back-to-top{position:fixed;bottom:var(--space-xl);right:var(--space-xl);width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--color-primary);color:var(--color-secondary);font-size:var(--font-size-lg);border-radius:var(--radius-full);box-shadow:var(--shadow-md);opacity:0;visibility:hidden;transform:translateY(10px);transition:all var(--transition-base);z-index:var(--z-fixed);cursor:pointer}.back-to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{background:var(--color-primary-hover);color:var(--color-secondary);box-shadow:var(--shadow-lg)}