.grid-2col {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
}
.grid-3col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.grid-4col {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}
.card {
    background: #ffffff;
    border-radius: 28px;
    padding: 28px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.02), 0 2px 6px rgba(0,0,0,0.03);
    transition: 0.25s ease;
    border: 1px solid var(--border-light);
}
.contact-card {
    background: var(--primary-light);
    border-radius: 28px;
    padding: 32px;
    text-align: center;
}
.contact-card i {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: 16px;
}
.office-card {
    background: white;
    border-radius: 28px;
    padding: 28px;
    border: 1px solid var(--border-light);
}
.badge-light {
    background: var(--primary-light);
    color: var(--primary-dark);
    border-radius: 40px;
    padding: 4px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
}
.chat-widget {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}
.chat-button {
    background: var(--primary);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(44,123,229,0.3);
    transition: 0.2s;
    font-size: 28px;
}
.chat-button:hover {
    transform: scale(1.05);
    background: var(--primary-dark);
}
.chat-window {
    display: none;
    width: 320px;
    background: white;
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    margin-bottom: 16px;
    overflow: hidden;
    border: 1px solid var(--border-light);
}
.chat-window.active {
    display: block;
}
.chat-header {
    background: var(--primary);
    color: white;
    padding: 16px;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
}
.chat-body {
    padding: 16px;
    max-height: 300px;
    overflow-y: auto;
}
.chat-message {
    margin-bottom: 12px;
    padding: 8px 12px;
    border-radius: 18px;
    background: var(--primary-light);
    display: inline-block;
    max-width: 80%;
}
.chat-input {
    display: flex;
    border-top: 1px solid var(--border-light);
}
.chat-input input {
    flex: 1;
    border: none;
    padding: 12px;
    font-family: inherit;
}
.chat-input button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0 16px;
    cursor: pointer;
}
.map-container {
    border-radius: 28px;
    overflow: hidden;
    height: 400px;
}

@media (max-width: 800px) {
    .grid-2col, .grid-3col, .form-qr { grid-template-columns: 1fr; }
}