:root {
    /* Palette สีพาสเทล */
    --bg-pink: #FFF0F5;      /* Lavender Blush */
    --card-bg: rgba(255, 255, 255, 0.95);
    --primary-pink: #FFB7C5; /* Cherry Blossom Pink */
    --soft-pink: #FFD1DC;
    --primary-blue: #B5EAD7; /* Magic Mint (อมเขียวนิดๆ พาสเทล) */
    --text-color: #6D6D6D;
    --text-header: #FF9EAA;
}

body {
    margin: 0;
    font-family: 'Kanit', sans-serif;
    /* พื้นหลัง Gradient ชมพูฟุ้งๆ */
    background: linear-gradient(120deg, #fdfbfb 0%, #ebedee 100%);
    background-image: linear-gradient(to top, #fad0c4 0%, #ffd1ff 100%);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-color);
}

.hidden { display: none !important; }

/* --- Glass Card (กล่องใสๆ) --- */
.glass-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 40px;
    box-shadow: 0 20px 60px rgba(255, 183, 197, 0.3); /* เงาสีชมพู */
    text-align: center;
    width: 340px;
    border: 2px solid #fff;
}

.brand-logo {
    width: 90px; height: 90px;
    background: linear-gradient(135deg, #FF9A9E 0%, #FECFEF 99%, #FECFEF 100%);
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex; align-items: center; justify-content: center;
    color: white; font-size: 2.8rem; font-weight: bold;
    box-shadow: 0 10px 20px rgba(255, 154, 158, 0.4);
}

h2 { color: var(--text-header); margin-bottom: 5px; }
p { font-size: 0.9rem; color: #999; margin-top: 0; }

/* --- Inputs & Buttons --- */
input {
    width: 100%; box-sizing: border-box;
    padding: 15px 20px;
    border: 2px solid #F3F3F3;
    border-radius: 25px;
    outline: none;
    background: #FFFDFA;
    transition: 0.3s;
    color: var(--text-color);
}
input:focus { border-color: var(--primary-pink); }

.btn-primary {
    background: linear-gradient(to right, #ff9a9e 0%, #fecfef 99%, #fecfef 100%);
    color: white; border: none;
    padding: 15px; border-radius: 30px;
    width: 100%; margin-top: 20px;
    cursor: pointer; font-size: 1rem; font-weight: 500;
    box-shadow: 0 5px 15px rgba(255, 154, 158, 0.3);
    transition: transform 0.2s;
}
.btn-primary:hover { transform: translateY(-3px); }

/* --- Mode Cards --- */
.mode-options { display: flex; gap: 15px; margin-top: 25px; justify-content: center; }
.mode-card {
    background: white; border-radius: 25px;
    padding: 20px 15px; width: 130px; cursor: pointer;
    transition: 0.3s; box-shadow: 0 10px 25px rgba(0,0,0,0.03);
    border: 2px solid transparent;
}
.mode-card:hover { transform: translateY(-5px); }
.mode-card .icon { font-size: 2.5rem; margin-bottom: 10px; }
.mode-card h3 { font-size: 0.9rem; margin: 5px 0; color: var(--text-color); }

/* Hover Colors */
.pink-hover:hover { border-color: #FFB7C5; }
.blue-hover:hover { border-color: #A0E7E5; }
.orange-hover:hover { border-color: #FFDAC1; }
.red-hover:hover { border-color: #FF9AA2; }

.btn-text {
    background: none; border: none; color: #AAA;
    margin-top: 20px; cursor: pointer; font-size: 0.9rem;
}

/* --- Chat UI --- */
.chat-wrapper {
    width: 400px; height: 85vh;
    background: white; border-radius: 35px;
    display: flex; flex-direction: column; overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.08);
}

.chat-header {
    background: linear-gradient(120deg, #f6d365 0%, #fda085 100%); /* Warm Gradient */
    background: linear-gradient(to right, #ff9a9e 0%, #fecfef 99%, #fecfef 100%); /* Pink Gradient */
    padding: 15px 20px; color: white;
    display: flex; align-items: center; gap: 15px;
}
.header-back-btn {
    background: rgba(255,255,255,0.25); border: none; color: white;
    width: 35px; height: 35px; border-radius: 50%; cursor: pointer;
    font-size: 1.1rem; display: flex; align-items: center; justify-content: center;
}

.chat-body {
    flex: 1; padding: 20px; background: #fffcfc;
    overflow-y: auto; display: flex; flex-direction: column; gap: 12px;
}

/* Chat Bubbles */
.msg {
    padding: 12px 18px; border-radius: 20px;
    font-size: 0.95rem; max-width: 75%; line-height: 1.5;
    box-shadow: 0 2px 5px rgba(0,0,0,0.03);
}
.bot-msg {
    background: #F0F4F8; /* Soft Grey/Blue */
    color: #555;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}
.user-msg {
    background: #FFD1DC; /* Pastel Pink */
    color: #555;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

/* Footer */
.chat-footer { padding: 15px; display: flex; gap: 10px; border-top: 1px solid #f9f9f9; }
.btn-send {
    background: #FF9A9E; color: white; border: none;
    width: 48px; height: 48px; border-radius: 50%;
    cursor: pointer; display: flex; justify-content: center; align-items: center;
    box-shadow: 0 4px 10px rgba(255, 154, 158, 0.4);
    transition: 0.2s;
}
.btn-send:hover { transform: scale(1.05); }

/* Admin FAB */
#admin-fab {
    position: fixed; bottom: 25px; right: 25px;
    width: 60px; height: 60px;
    background: white; color: #FF9A9E;
    border-radius: 50%; border: none; font-size: 1.8rem;
    box-shadow: 0 5px 20px rgba(255, 154, 158, 0.4);
    cursor: pointer; z-index: 100;
    transition: 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
#admin-fab:hover { transform: scale(1.1) rotate(15deg); }

.admin-popup {
    position: fixed; bottom: 100px; right: 25px; width: 260px;
    background: rgba(255,255,255,0.98); border-radius: 20px;
    padding: 15px; box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    z-index: 99; transition: 0.3s; border: 1px solid #FFD1DC;
}
.hidden-panel { opacity: 0; transform: translateY(20px) scale(0.9); pointer-events: none; }
.panel-header { display: flex; justify-content: space-between; color: #FF9A9E; font-weight: bold; margin-bottom: 10px; }
.btn-trigger { width: 100%; padding: 10px; background: #FFD1DC; border:none; border-radius:15px; margin-top:8px; cursor:pointer; color: #fff; font-weight: bold;}

/* เพิ่ม overflow: hidden ในคลาสเดิม เพื่อตัดส่วนที่ล้นวงกลมออก */
.brand-logo {
    width: 90px; height: 90px;
    background: linear-gradient(135deg, #FF9A9E 0%, #FECFEF 99%, #FECFEF 100%); /* ถ้ารูปโลโก้มีพื้นหลังอยู่แล้ว ลบบรรทัด background นี้ทิ้งได้เลยครับ */
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 10px 20px rgba(255, 154, 158, 0.4);
    overflow: hidden; /* <--- เพิ่มบรรทัดนี้ */
}

/* เพิ่มส่วนนี้เข้าไปใหม่ เพื่อจัดการขนาดรูป */
.brand-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* ทำให้รูปขยายเต็มพอดีวงกลมโดยไม่เบี้ยว */
}