:root {
    --gold-primary: #D4AF37;
    --gold-gradient: linear-gradient(135deg, #D4AF37 0%, #F4DF4E 50%, #C5A028 100%);
    --dark-main: #1a1a1a;
    --text-gray: #777;
    --blue-navy: #00113d;
}

/* ==========================================================================
   1. Banner Slim Component
   ========================================================================== */
.banner-page-slim {
    position: relative;
    height: 13em;
    overflow: hidden;
}
.banner-page-slim img { 
    width: 100%; 
    height: 100%; 
    object-fit: cover; 
}
.banner-overlay-slim {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5); /* Tăng tương phản nhẹ để text rõ hơn */
    display: flex;
    flex-direction: column;     
    align-items: center;        
    justify-content: center; 
    padding: 0 15px;
}
.banner-overlay-slim .banner__title {
    color: #fff;
    font-size: 28px;
    font-weight: 700;
    text-transform: uppercase;
    margin: 0 0 8px 0;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
.banner-overlay-slim .banner__subtitle,
.banner-overlay-slim .banner__subtitle span {
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
    letter-spacing: 1px;
    text-align: center;
    line-height: 1.4;
    font-weight: 300;
}

/* ==========================================================================
   2. Section Main & Grid Layout
   ========================================================================== */
.section-contact-main { 
    padding: 60px 0; /* Tăng padding thoáng không gian */
    background: #fbfbfb; 
}
.display-flex { 
    display: flex; 
    align-items: stretch; 
}

/* ==========================================================================
   3. Left Form Custom Style
   ========================================================================== */
.form-left-minimal { 
    padding-right: 30px; 
    background: #fff;
    padding: 35px;
    border-radius: 8px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.02);
    height: 100%;
}
.contact-title-slim {
    font-size: 24px; 
    font-weight: 800; 
    color: var(--dark-main);
    margin: 0 0 8px 0; 
    position: relative; 
    padding-left: 15px;
}
.contact-title-slim::before {
    content: ""; 
    position: absolute; 
    left: 0; 
    top: 4px; 
    bottom: 4px;
    width: 4px; 
    background: var(--gold-gradient);
    border-radius: 2px;
}
.description-slim { 
    color: var(--text-gray); 
    font-size: 13,5px; 
    margin-bottom: 25px; 
    font-style: italic; 
}

/* Form Input Element */
.custom-group-slim { 
    position: relative; 
    margin-bottom: 20px; 
}
.custom-group-slim .ico {
    position: absolute; 
    left: 15px; 
    top: 50%;
    transform: translateY(-50%);
    color: var(--gold-primary); 
    font-size: 15px; 
    z-index: 5;
    pointer-events: none;
}
.form-control-slim {
    width: 100%;
    height: 46px;
    padding: 10px 15px 10px 42px;
    border: 1px solid #e2cc9d; /* Chỉnh màu viền khớp dải vàng sang trọng */
    border-radius: 6px;
    font-size: 14px;
    color: #333;
    background-color: #fff;
    transition: all 0.25s ease;
}
.form-control-slim:focus { 
    border-color: var(--gold-primary); 
    outline: none; 
    box-shadow: 0 0 8px rgba(212, 175, 55, 0.15); 
    background-color: #fff;
}

/* Kiểu riêng tối ưu cho Textarea */
.custom-group-slim.default-textarea-box .ico {
    display: none; /* Ẩn icon ở textarea tránh đè chữ */
}
textarea.form-control-slim { 
    padding-left: 15px; 
    height: auto;
    min-height: 110px;
    resize: none; 
}

/* Button Submit Effect */
.btn-submit-slim {
    background: var(--blue-navy);
    color: #fff;
    padding: 12px 35px;
    border: none;
    border-radius: 6px;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 13.5px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: all 0.25s ease;
}
.btn-submit-slim img {
    width: 14px;
    height: auto;
    object-fit: contain;
    transition: transform 0.2s;
}
.btn-submit-slim:hover { 
    background: var(--gold-primary); 
    transform: translateY(-2px); 
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}
.btn-submit-slim:hover img {
    transform: translateX(3px);
}
.btn-submit-slim:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

/* ==========================================================================
   4. Right Info & Map Style
   ========================================================================== */
.side-info-wrapper { 
    display: flex; 
    flex-direction: column; 
    gap: 20px; 
    height: 100%; 
}
.info-card-slim {
    padding: 30px 25px;
    border-radius: 8px;
    border: 1px solid rgba(212, 175, 55, 0.2);
    box-shadow: 0 5px 20px rgba(0,17,61,0.08);
}
.img-info-slim {
    text-align: center;
    margin-bottom: 20px;
}
.img-info-slim img {
    max-height: 68px;
    object-fit: contain;
    width: auto;
    margin: auto;
}
.company-name-slim {
    font-size: 17px;
    font-weight: 700;
    color: var(--blue-navy);
    text-align: center;
    margin: 0 0 25px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.contact-info-list-slim {
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.info-item-slim { 
    display: flex; 
    align-items: center; 
    gap: 15px; 
}
.icon-circle-slim {
    width: 34px;
    height: 34px;
    background: #e7be71;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    flex-shrink: 0;
}
.icon-circle-slim img { 
    width: 14px; 
    height: 14px;
    object-fit: contain;
}
.info-item-slim .val {
    font-size: 13.5px;
    color: var(--blue-navy);
    margin: 0;
    line-height: 1.5;
}
.gold-text {
    font-weight: 600;
}

/* Map Container */
.map-wrapper-slim {
    flex-grow: 1; 
    min-height: 220px;
    border-radius: 8px; 
    overflow: hidden;
    border: 1px solid #e2cc9d; 
    box-shadow: 0 5px 15px rgba(0,0,0,0.04);
}
.map-wrapper-slim iframe { 
    width: 100% !important; 
    height: 100% !important; 
    border: 0;
    display: block;
}

/* ==========================================================================
   5. Success Alert Component & Animation
   ========================================================================== */
.alert-success-slim {
    margin-bottom: 20px;
    padding: 14px 18px;
    background: #f0f9eb; 
    border: 1px solid #c2e7b0;
    border-radius: 6px;
    color: #67c23a;
    font-size: 14px;
    animation: slideUp 0.4s ease-out;
}
.alert-success-slim .msg-content {
    display: flex;
    align-items: center;
    gap: 12px;
}
.alert-success-slim i { 
    font-size: 18px; 
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   6. Responsive Layout Media Queries
   ========================================================================== */
@media (max-width: 991px) {
    .display-flex { 
        flex-direction: column; 
        gap: 25px;
    }
    .form-left-minimal { 
        padding-right: 20px; 
    }
    .map-wrapper-slim { 
        min-height: 280px; 
    }
}