/* --- SATURN BUTTON: PREMIUM TACTILE & LIQUID --- */
.sb-button-wrapper {
    display: inline-block;
}

.sb-button {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 18px 45px;
    font-size: 16px;
    font-weight: 800;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.5s cubic-bezier(0.2, 1, 0.3, 1);
    cursor: pointer;
    border: none;
    z-index: 1;
    background: #333;
    color: #fff;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- 1. FULL LIQUID FILL (Advanced Wave) --- */
.sb-btn-anim-liquid::before {
    content: '';
    position: absolute;
    top: 0;
    left: -110%;
    width: 120%;
    height: 100%;
    background: var(--sb-btn-accent, #ff4d4d);
    transition: transform 0.6s cubic-bezier(0.7, 0, 0.2, 1);
    z-index: -1;
    transform: skewX(-25deg);
}

.sb-btn-anim-liquid:hover::before {
    transform: translateX(100%) skewX(-25deg);
}

.sb-btn-anim-liquid:hover {
    color: #fff;
    box-shadow: 0 10px 30px rgba(var(--sb-btn-rgb), 0.3);
    transform: translateY(-3px);
}

/* --- 2. ELASTIC EXPAND (Tactile/Signature) --- */
.sb-btn-anim-elastic {
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

.sb-btn-anim-elastic:hover {
    transform: scale(1.1);
    border-radius: 50px;
    padding: 18px 55px;
    letter-spacing: 3px;
    background: #000;
    box-shadow: 0 15px 45px rgba(0,0,0,0.25);
}

.sb-btn-anim-elastic .sb-btn-icon {
    transition: transform 0.6s cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

.sb-btn-anim-elastic:hover .sb-btn-icon {
    transform: scale(1.4) rotate(15deg);
    margin-right: 18px;
}

/* --- 3. MAGNETIC SHIMMER (Premium Light Glide) --- */
.sb-btn-anim-shimmer::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -150%;
    width: 150%;
    height: 200%;
    background: linear-gradient(
        to right,
        transparent,
        rgba(255,255,255,0.3),
        transparent
    );
    transform: rotate(45deg);
    transition: all 0.8s cubic-bezier(0.2, 1, 0.3, 1);
}

.sb-btn-anim-shimmer:hover::after {
    left: 150%;
}

.sb-btn-anim-shimmer:hover {
    transform: translateY(-5px) scale(1.03);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

/* Icons and Text */
.sb-btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    font-size: 1.3em;
    line-height: 1;
    transition: all 0.4s var(--sb-transition);
}

.sb-btn-icon i {
    font-size: inherit;
    color: inherit;
    display: block;
}

.sb-btn-icon svg {
    width: 1em;
    height: 1em;
    fill: currentColor;
    display: block;
}

.sb-btn-text {
    display: inline-block;
    line-height: 1;
}