/* SIAM AI widget — tránh đè Subiz (z-index thấp hơn một bậc) */
#siam-ai-root {
    position: fixed;
    bottom: 170px;
    right: 16px;
    z-index: 99998;
    font-family: 'Segoe UI', system-ui, -apple-system, 'Nunito Sans', sans-serif;
    font-size: 14px;
    line-height: 1.45;
}

#siam-ai-root .siam-ai-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-width: 72px;
    min-height: 56px;
    border: none;
    border-radius: 999px;
    background: linear-gradient(135deg, #0089CF 0%, #0066B3 100%); /* COLOR 1 */
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.2px;
    cursor: pointer;
    box-shadow: 0 14px 34px rgba(0, 137, 207, 0.25);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

#siam-ai-root .siam-ai-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 102, 179, 0.48);
}

#siam-ai-root .siam-ai-greeting {
    position: absolute;
    right: 8px;
    bottom: 66px;
    max-width: min(84vw, 320px);
    padding: 10px 16px;
    border-radius: 999px;
    background: #ffffff;
    color: #1f2a2c;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.2;
    white-space: nowrap;
    box-shadow: 0 10px 24px rgba(27, 52, 84, 0.18);
    z-index: 3;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

#siam-ai-root .siam-ai-greeting::after {
    content: '';
    position: absolute;
    right: 36px;
    top: calc(100% - 1px);
    border: 8px solid transparent;
    border-top-color: #ffffff;
}

#siam-ai-root.siam-ai-open .siam-ai-greeting,
#siam-ai-root.siam-ai-greeting-hidden .siam-ai-greeting {
    opacity: 0;
    transform: translateY(6px);
    pointer-events: none;
}

#siam-ai-root .siam-ai-btn-ping {
    position: absolute;
    width: 14px;
    height: 14px;
    left: -4px;
    top: 3px;
    border-radius: 50%;
    background: #4caf50;
    box-shadow: 0 0 0 rgba(76, 175, 80, 0.45);
    animation: siamAiPing 2s infinite;
}

@keyframes siamAiPing {
    0% { box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.45); }
    70% { box-shadow: 0 0 0 10px rgba(76, 175, 80, 0); }
    100% { box-shadow: 0 0 0 0 rgba(76, 175, 80, 0); }
}

#siam-ai-root .siam-ai-panel {
    display: none;
    position: absolute;
    bottom: 72px;
    right: 0;
    width: min(92vw, 440px);
    max-height: min(72vh, 560px);
    /* Nền chat theo style mockup: xanh nhạt + “dải sóng” mềm */
    background-color: #f6faff;
    background-image:
        radial-gradient(120% 80% at 15% 8%, rgba(180, 214, 255, 0.55) 0%, rgba(180, 214, 255, 0) 55%),
        radial-gradient(120% 80% at 85% 18%, rgba(170, 205, 255, 0.45) 0%, rgba(170, 205, 255, 0) 60%),
        radial-gradient(120% 95% at 50% 105%, rgba(120, 170, 235, 0.28) 0%, rgba(120, 170, 235, 0) 58%),
        linear-gradient(90deg, rgba(0, 120, 255, 0.10) 0%, rgba(0, 120, 255, 0) 38%),
        linear-gradient(90deg, #eaf3ff 0%, #ffffff 58%, #fbfdff 100%);
    background-repeat: no-repeat;
    background-size: cover; 
    border-radius: 22px;
    box-shadow:
        0 24px 64px rgba(7, 23, 63, 0.28),
        0 8px 24px rgba(0, 74, 153, 0.12);
    overflow: hidden;
    flex-direction: column;
    border: 1px solid rgba(0, 74, 153, 0.12);
}

#siam-ai-root.siam-ai-open .siam-ai-panel {
    display: flex;
}

#siam-ai-root .siam-ai-head {
    position: relative;
    flex-shrink: 0;
    align-self: stretch;
    width: 100%;
    box-sizing: border-box;
    padding: 0;
    background-image: url("https://i.ibb.co/FqXH3HPD/Chat-GPT-Image-11-05-01-10-thg-4-2026-1-1.png");
    background-repeat: no-repeat;
    background-position: center top;
    /* 100% auto = đủ ngang khung; nếu file PNG có viền trắng sẵn trong ảnh thì tăng % để “zoom” cắt hai bên */
    background-size: 100% 100%;
    color: #fff;
}

#siam-ai-root .siam-ai-head-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 16px 20px;
    margin-bottom: 16px;
}

#siam-ai-root .siam-ai-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

#siam-ai-root .siam-ai-brand-text {
    min-width: 0;
}

/* Vạch cam cong theo header (SVG — không còn line thẳng) */
#siam-ai-root .siam-ai-head-accent {
    flex-shrink: 0;
    display: block;
    line-height: 0;
    height: auto;
    margin-top: -22px;
    margin-bottom: 0;
    position: relative;
    z-index: 1;
    pointer-events: none;
    background: transparent;
}

#siam-ai-root .siam-ai-head-accent .siam-ai-head-curve {
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
    object-position: top center;
    filter: drop-shadow(0 2px 4px rgba(245, 130, 32, 0.35));
}


#siam-ai-root .siam-ai-dot {
    width: 46px;
    height: 46px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.85);
    color: #004a99;
    font-size: 12px;
    box-shadow:
        0 4px 14px rgba(0, 0, 0, 0.18),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

#siam-ai-root .siam-ai-dot i {
    line-height: 1;
}

#siam-ai-root .siam-ai-dot img {
    width: 72%;
    height: 72%;
    object-fit: contain;
    display: block;
}

#siam-ai-root .siam-ai-btn-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 14px;
    background-color: #ffffff;
    border-radius: 50%;
    border: 1px solid rgba(0, 102, 179, 0.25);
    box-shadow: 0 10px 24px rgba(0, 137, 207, 0.18);

}

#siam-ai-root .siam-ai-btn-icon img {
    display: block;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 50%;
}

#siam-ai-root .siam-ai-title {
    margin: 0;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 0.06em;
    line-height: 1.15;
    text-transform: none;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

#siam-ai-root .siam-ai-sub {
    margin: 4px 0 0;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.35;
    opacity: 0.95;
    letter-spacing: 0.02em;
}

#siam-ai-root .siam-ai-head-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

#siam-ai-root .siam-ai-about-link {
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.55);
    background: rgba(255, 255, 255, 0.1);
    text-decoration: none;
    white-space: nowrap;
    transition: background 0.2s ease, border-color 0.2s ease;
}

#siam-ai-root .siam-ai-about-link:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.85);
}

#siam-ai-root .siam-ai-close {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
    padding: 4px 6px;
    margin: 0;
    border-radius: 8px;
    transition: background 0.15s ease;
    -webkit-box-shadow: none;
    box-shadow: none;
}

#siam-ai-root .siam-ai-close:hover {
    background: rgba(255, 255, 255, 0.12);
}

#siam-ai-root .siam-ai-messages {
    flex: 1;
    overflow-y: auto;
    padding: 14px 14px 8px;
    min-height: 100px;
    
}

#siam-ai-root .siam-ai-msg {
    margin-bottom: 10px;
    padding: 12px 14px;
    border-radius: 16px;
    max-width: 90%;
    word-break: break-word;
    line-height: 1.5;
}

#siam-ai-root .siam-ai-msg.user {
    background: #e4ecfb;
    margin-left: auto;
    border: 1px solid #c8daf5;
    box-shadow: 0 8px 20px rgba(0, 74, 153, 0.08);
    color: #333;
}

#siam-ai-root .siam-ai-msg.bot {
    background: #fff;
    border: 1px solid #dbe9ff;
    margin-right: auto;
    box-shadow: 0 10px 28px rgba(0, 74, 153, 0.1);
    color: #333;
}

#siam-ai-root .siam-ai-msg.bot a {
    color: #00838f;
    font-weight: 600;
    text-decoration: underline;
}

#siam-ai-root .siam-ai-links {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px dashed #cfdbf7;
    font-size: 13px;
}

#siam-ai-root .siam-ai-links li {
    margin: 6px 0;
}

#siam-ai-root .siam-ai-form {
    display: flex;
    gap: 10px;
    align-items: stretch;
    padding: 14px 14px 16px;
    border-top: 1px solid #e2ebf7;
    background: #ffffff;
}

#siam-ai-root .siam-ai-form input {
    flex: 1;
    border: 1px solid #cfd9ea;
    border-radius: 16px;
    padding: 12px 16px;
    font-size: 14px;
    background: #fafcff;
}

#siam-ai-root .siam-ai-form input:focus {
    outline: none;
    border-color: #0089CF;
    box-shadow: 0 0 0 3px rgba(0, 137, 207, 0.18);
}

#siam-ai-root .siam-ai-form button[type="submit"] {
    padding: 12px 22px;
    border: none;
    border-radius: 999px;
    background: linear-gradient(180deg, #0a6ec9 0%, #004a99 100%);
    color: #fff;
    font-weight: 800;
    font-size: 13px;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    box-shadow: 0 8px 22px rgba(0, 74, 153, 0.35);
    align-self: center;
}

#siam-ai-root .siam-ai-form button[type="submit"]:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 28px rgba(0, 102, 179, 0.32);
}

/* Form tư vấn chi tiết (hiển thị sau 2-3 câu hỏi) */
#siam-ai-root .siam-ai-consult-form {
    display: none;
    padding: 12px;
    border-top: 1px solid #dee8fb;
    background: #eef4ff;
    flex-direction: column;
    gap: 10px;
    position: relative;
}

#siam-ai-root.siam-ai-consult-open .siam-ai-consult-form {
    display: flex;
}

#siam-ai-root.siam-ai-consult-open .siam-ai-form {
    display: none;
}

#siam-ai-root.siam-ai-consult-open .siam-ai-consult-bar {
    display: none;
}

#siam-ai-root .siam-ai-consult-bar {
    display: flex;
    gap: 8px;
    padding: 10px 12px 0;
    background: linear-gradient(180deg, rgba(238, 244, 255, 0.95), rgba(238, 244, 255, 0));
}

#siam-ai-root .siam-ai-consult-cta {
    border: 1px solid rgba(0, 102, 179, 0.22);
    color: #0066B3;
    background: rgba(255, 255, 255, 0.8);
    padding: 7px 12px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 12px;
    cursor: pointer;
    margin-bottom: 5px;
}

#siam-ai-root .siam-ai-consult-cta:hover {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 10px 22px rgba(0, 137, 207, 0.14);
}

#siam-ai-root .siam-ai-consult-title {
    font-weight: 700;
    color: #444;
    font-size: 13px;
    line-height: 1.4;
    padding-right: 34px; /* nhường chỗ cho nút đóng */
}

#siam-ai-root .siam-ai-consult-close {
    position: absolute;
    right: 10px;
    top: 5px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    border: 1px solid rgba(0, 102, 179, 0.18);
    background: rgba(255, 255, 255, 0.7);
    color: #0066B3;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
}

#siam-ai-root .siam-ai-consult-close:hover {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 10px 22px rgba(0, 137, 207, 0.14);
}

#siam-ai-root .siam-ai-consult-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

#siam-ai-root .siam-ai-consult-grid input {
    width: 100%;
    border: 1px solid #cfe0ff;
    border-radius: 14px;
    padding: 10px 12px;
    font-size: 13px;
    background: #fff;
}

#siam-ai-root .siam-ai-consult-grid input:focus {
    outline: none;
    border-color: #0089CF;
    box-shadow: 0 0 0 3px rgba(0, 137, 207, 0.14);
}

#siam-ai-root .siam-ai-consult-form > button[type="submit"] {
    padding: 11px 18px;
    border: none;
    border-radius: 999px;
    background: linear-gradient(135deg, #0089CF 0%, #0066B3 100%);
    color: #fff;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    box-shadow: 0 10px 24px rgba(0, 137, 207, 0.22);
}

#siam-ai-root .siam-ai-consult-form > button[type="submit"]:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 28px rgba(0, 102, 179, 0.32);
}

#siam-ai-root .siam-ai-consult-note {
    font-size: 11px;
    color: #666;
    opacity: 0.9;
    text-align: center;
}

#siam-ai-root .siam-ai-err {
    color: #c0392b;
    font-size: 13px;
}

#siam-ai-root .siam-ai-loading {
    opacity: 0.7;
    font-style: italic;
}
.s-siam-ai-landing .container {
    margin-top: 120px;
}
.s-siam-ai-landing .siam-ai-lead {
    font-size: 16px;
    color: #444;
    margin-top: 24px;
}

.s-siam-ai-landing .siam-ai-faq-item {
    margin-bottom: 20px;
}

.s-siam-ai-landing .siam-ai-faq-item .h3 {
    font-size: 18px;
    color: #0066B3;
    margin-bottom: 8px;
}

.s-siam-ai-landing .siam-ai-hint {
    margin-top: 24px;
    color: #666;
}

@media (max-width: 767px) {
    #siam-ai-root {
        bottom: 170px;
        right: 10px;

    }

    #siam-ai-root .siam-ai-panel {
        width: min(95vw, 380px);
        max-height: min(68vh, 520px);
    }

    #siam-ai-root .siam-ai-btn {
        min-height: 40px;
        padding: 8px 14px;
        font-size: 12px;
    }

    #siam-ai-root .siam-ai-greeting {
        right: 4px;
        bottom: 58px;
        padding: 8px 12px;
        font-size: 12px;
        max-width: min(88vw, 250px);
    }

    #siam-ai-root .siam-ai-btn-icon {
        width: 30px;
        height: 30px;
    }

    #siam-ai-root .siam-ai-head-inner {
        flex-wrap: wrap;
        padding: 12px 12px 10px;
    }

    #siam-ai-root .siam-ai-title {
        font-size: 17px;
        letter-spacing: 0.04em;
    }

    #siam-ai-root .siam-ai-sub {
        font-size: 11px;
    }

    #siam-ai-root .siam-ai-about-link {
        padding: 6px 10px;
        font-size: 11px;
    }

    #siam-ai-root .siam-ai-dot {
        width: 40px;
        height: 40px;
    }
}