/* CSS Reset dan Box Model Asas */
*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-color: #e5ddd5;
    overflow: hidden; /* Mencegah body daripada skrol */
}

/* Bekas Sembang Utama - KUNCI LAYOUT STABIL */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 100vh; /* Fallback untuk pelayar lama */
    height: 100dvh; /* KUNCI: Menyesuaikan diri dengan papan kekunci mobil */
    width: 100%;
    max-width: 420px; /* Lebar maksimum untuk paparan desktop */
    margin: 0 auto; /* Tengahkannya pada desktop */
    background-color: #f0f0f0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Header - Tetap di Atas */
.chat-header {
    background-color: #075e54;
    color: white;
    padding: 15px 20px;
    flex-shrink: 0;
}
.chat-header h3 {
    margin: 0;
    font-weight: 500;
}

/* Ruang Mesej - Satu-satunya bahagian yang boleh skrol */
.chat-box {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
    scroll-behavior: smooth;
    padding: 20px 20px 30px;
    display: flex;
    flex-direction: column;
    background-image: url('background/background1.png');
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.message {
    max-width: 80%;
    padding: 10px 15px;
    border-radius: 10px;
    line-height: 1.4;
    word-wrap: break-word;
}
.message img {
    max-width: 100%;
    border-radius: 8px;
    display: block;
}
.message video {
    max-width: 100%;
    border-radius: 8px;
    display: block;
}
.bot-message {
    background-color: #ffffff;
    align-self: flex-start;
    border-top-left-radius: 0;
}
.user-message {
    background-color: #dcf8c6;
    align-self: flex-end;
    border-top-right-radius: 0;
}
.typing-indicator {
    align-items: center;
    padding: 10px 15px;
    background-color: #ffffff;
    border-radius: 10px;
    display: flex;
}
.typing-indicator span {
    height: 8px; width: 8px; background-color: #999; border-radius: 50%;
    display: inline-block; margin: 0 2px; animation: typing 1.4s infinite;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing { 0%, 100% { opacity: 0.2; } 50% { opacity: 1; } }

.message-row {
    display: flex;
    margin-bottom: 10px;
    animation: fadeInUp 0.4s ease-out;
}
.bot-row {
    justify-content: flex-start;
    align-items: flex-end; /* Letak ikon di bahagian bawah bubble */
}
.user-row {
    justify-content: flex-end;
}

.profile-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    margin-right: 10px;
    flex-shrink: 0; /* Elak ikon dari mengecut */
}

/* Kelas dan animasi untuk menyembunyikan ikon profil */
.profile-icon-hiding {
    animation: slideDownAndFade 0.4s ease-out forwards;
}

@keyframes slideDownAndFade {
    from {
        transform: translateY(0);
        opacity: 1;
    }
    to {
        transform: translateY(20px); /* Jarak pergerakan yang lebih pendek & kemas */
        opacity: 0; /* Menjadi halimunan di akhir pergerakan */
    }
}

.icon-placeholder {
    width: 32px;
    margin-right: 10px;
    flex-shrink: 0;
}

/* Ruang Input - Tetap di Bawah */
.chat-input {
    display: none; /* Sembunyikan secara lalai */
    padding: 15px;
    background-color: #f0f0f0;
    border-top: 1px solid #ddd;
    flex-shrink: 0;
}
.options-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.options-container button {
    background-color: #007bff; color: white; border: none;
    padding: 12px; border-radius: 20px; cursor: pointer;
    text-align: center; font-size: 15px; transition: background-color 0.2s;
}
.options-container button:hover { background-color: #0056b3; }
.input-wrapper {
    display: none; align-items: center; gap: 10px;
}
.input-wrapper input {
    flex-grow: 1; padding: 10px 15px; border: 1px solid #ccc;
    border-radius: 20px; font-size: 16px;
}
.input-wrapper button {
    background-color: #128c7e; color: white; border: none; border-radius: 50%;
    width: 45px; height: 45px; font-size: 20px; cursor: pointer;
    display: flex; justify-content: center; align-items: center;
}

/* Paparan Mudah Alih */
@media (max-width: 480px) {
    .chat-container {
        max-width: none;
        border-radius: 0;
    }
    .options-container button {
        padding: 10px;
        font-size: 14px;
    }
}