/* Glass Panel */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: var(--glass-border);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: var(--glass-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.2);
}

.full-width {
    width: 100%;
}

/* Forms */
.form-group {
    position: relative;
    margin-bottom: 2rem;
}

.form-input {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
    font-family: var(--font-main);
    font-size: 1rem;
    color: var(--color-text);
    transition: all 0.3s ease;
    border-radius: 5px 5px 0 0;
}

.form-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.2);
    border-bottom: 1px solid var(--color-primary);
}

.form-label {
    position: absolute;
    top: 1rem;
    left: 1rem;
    font-size: 1rem;
    color: #888;
    pointer-events: none;
    transition: all 0.3s ease;
}

.form-input:focus~.form-label,
.form-input:not(:placeholder-shown)~.form-label {
    top: -1.2rem;
    left: 0;
    font-size: 0.8rem;
    color: var(--color-primary);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 200;
}

.mobile-menu-btn span {
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    transition: all 0.3s ease;
}

.mobile-menu-btn span:nth-child(1) {
    top: 0;
}

.mobile-menu-btn span:nth-child(2) {
    bottom: 0;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg);
    top: 9px;
}

.mobile-menu-btn.active span:nth-child(2) {
    transform: rotate(-45deg);
    bottom: 9px;
}

/* Mobile Nav Overlay */
.nav.mobile-active {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 150;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.nav.mobile-active ul {
    flex-direction: column;
    gap: 2rem;
}

/* Liquid Button Effect */
.btn-liquid {
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-liquid::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300%;
    height: 300%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0));
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.6s ease;
    z-index: -1;
    border-radius: 50%;
}

.btn-liquid:hover::before {
    transform: translate(-50%, -50%) scale(1);
}