.handshake-grid-io {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 40px;
}

.endpoint-comms-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.comms-io-link {
    display: flex;
    align-items: center;
    gap: 20px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 1.1rem;
    padding: 22px;
    transition: all 0.3s;
}

.comms-io-link:hover {
    color: #fff;
    border-color: var(--electric-blue);
    background: rgba(0, 243, 255, 0.05);
    transform: translateX(6px);
}

.comms-io-link i {
    font-size: 1.5rem;
    color: var(--electric-blue);
    width: 25px;
    text-align: center;
}


/* ==========================================
   CONTACT SECTION UPDATES
   ========================================== */

/* Neon Inputs */
.input-matrix-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.neon-input {
    width: 100%;
    background: rgba(4, 2, 10, 0.6);
    border: 2px solid var(--dark-border);
    border-radius: 8px;
    padding: 16px;
    color: var(--text-primary);
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    outline: none;
}

.neon-input:focus {
    border-color: var(--electric-blue);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.4);
    background: rgba(4, 2, 10, 0.9);
}

.textarea-wrapper {
    position: relative;
}

.char-counter {
    position: absolute;
    bottom: -22px;
    right: 5px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-family: 'Orbitron', sans-serif;
}

/* Copy to Clipboard Button */
.comms-io-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 15px;
}

.comms-io-link.hover-neon-slide {
    flex-grow: 1;
    transition: all 0.4s ease;
}

.comms-io-link.hover-neon-slide:hover {
    transform: translateX(10px);
    border-color: var(--neon-green);
    box-shadow: 0 0 20px rgba(57, 255, 20, 0.2);
}

.copy-btn {
    background: rgba(4, 2, 10, 0.8);
    border: 1px solid var(--dark-border);
    color: var(--text-secondary);
    width: 45px;
    height: 45px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.copy-btn:hover {
    color: var(--neon-green);
    border-color: var(--neon-green);
    background: rgba(57, 255, 20, 0.1);
}

.copy-tooltip {
    position: absolute;
    top: -35px;
    background: var(--neon-green);
    color: #000;
    padding: 4px 8px;
    border-radius: 4px;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    font-weight: bold;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
    pointer-events: none;
    white-space: nowrap;
}

.copy-tooltip.show {
    opacity: 1;
    transform: translateY(0);
}

/* Button Success State */
.btn-icon {
    transition: all 0.3s ease;
}

#send-btn.success-state {
    background: var(--neon-green);
    color: #000;
    border-color: var(--neon-green);
    box-shadow: 0 0 25px rgba(57, 255, 20, 0.5);
    pointer-events: none;
}

#send-btn.error-state {
    background: rgba(255, 50, 50, 0.1);
    color: #ff3232;
    border-color: #ff3232;
    box-shadow: 0 0 25px rgba(255, 50, 50, 0.5);
    pointer-events: none;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-5px); }
    40%, 80% { transform: translateX(5px); }
}

.shake-error {
    border-color: rgba(255, 50, 50, 0.8) !important;
    box-shadow: 0 0 8px rgba(255, 50, 50, 0.8) !important;
    animation: shake 0.4s ease-in-out;
}

.toast.error-toast {
    border-color: #ff3232;
    color: #ff3232;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 20px rgba(255, 50, 50, 0.2);
}

/* Mobile Responsiveness for Contact Section */
@media (max-width: 768px) {
    .handshake-grid-io {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .form-group.split-row {
        flex-direction: column;
    }

    .toast {
        left: 50%;
        bottom: 20px;
        transform: translateX(-50%) translateY(150px);
    }

    .toast.show {
        transform: translateX(-50%) translateY(0);
    }
}