:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --accent-color: #4895ef;
    --danger-color: #f72585;
    --text-color: #2b2d42;
    --text-light: #8d99ae;
    --bg-color: #f8f9fa;
    --container-bg: rgba(255, 255, 255, 0.9);
    --chat-bg: rgba(255, 255, 255, 0.7);
    --user-color: #4361ee;
    --ai-color: #4cc9f0;
    --border: rgba(0, 0, 0, 0.1);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --primary-color: #4cc9f0;
    --secondary-color: #4895ef;
    --accent-color: #4361ee;
    --danger-color: #f72585;
    --text-color: #f8f9fa;
    --text-light: #adb5bd;
    --bg-color: #121212;
    --container-bg: rgba(30, 30, 30, 0.9);
    --chat-bg: rgba(40, 40, 40, 0.7);
    --user-color: #4cc9f0;
    --ai-color: #4895ef;
    --border: rgba(255, 255, 255, 0.1);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Poppins', sans-serif;
    /* --- PERBAIKAN DI SINI --- */
    background-color: var(--bg-color); /* 1. Atur warnanya secara terpisah */
    background-image: url('../images/bg.png'); /* 2. Atur gambarnya secara terpisah */
    background-repeat: no-repeat;
    background-position: center center;
    background-attachment: fixed;
    background-size: cover;
    /* -------------------------- */
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
}

/* PERUBAHAN: Style untuk Tombol Home */
.home-button {
    color: var(--text-light);
    text-decoration: none;
    font-size: 1.2rem;
    padding: 8px;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.home-button:hover {
    color: var(--primary-color);
    background-color: var(--chat-bg);
}
.desktop-home-button {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 10;
    display: block; /* Tampil di desktop */
}
.mobile-home-button {
    display: none; /* Sembunyi di desktop */
    margin-right: 10px;
}
.header-buttons {
    display: flex;
    align-items: center;
}
/* Akhir dari perubahan */


.chat-container {
    max-width: 800px;
    width: 100%;
    background: var(--container-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    height: calc(100vh - 40px);
    max-height: 850px;
    position: relative; /* Tambahkan ini agar tombol Home Desktop bisa diposisikan */
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.chat-header-logo {
    height: 32px; 
    margin-right: 12px;
    vertical-align: middle;
}

.glowing-text {
    background: linear-gradient(90deg, #4361ee, #4cc9f0, #4361ee);
    background-size: 200% auto;
    color: #fff;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: glowing 4s linear infinite;
    font-weight: 700;
    display: flex;
    align-items: center;
}

[data-theme="dark"] .glowing-text {
    background: linear-gradient(90deg, #4cc9f0, #f8f9fa, #4cc9f0);
    background-size: 200% auto;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: glowing 4s linear infinite;
}

@keyframes glowing {
    to { background-position: 200% center; }
}

.chat-header h2 {
    margin: 0;
    font-size: 1.5rem;
}

.theme-toggle {
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-light);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px;
    border-radius: 5px;
}

.theme-toggle:hover {
    color: var(--primary-color);
    background: var(--chat-bg);
}

.chatbox {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.msg {
    padding: 12px 18px;
    border-radius: var(--radius);
    max-width: 90%;
    position: relative;
    line-height: 1.6;
    animation: fadeIn 0.4s ease;
    word-wrap: break-word;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.user-msg {
    align-self: flex-end;
    background: var(--user-color);
    color: white;
    border-top-right-radius: 4px;
}

.ai-msg {
    align-self: flex-start;
    background: var(--chat-bg);
    border: 1px solid var(--border);
    border-top-left-radius: 4px;
}

.msg-label {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--ai-color);
    font-size: 0.9rem;
}

.user-label {
    color: rgba(255, 255, 255, 0.9);
}

.msg-content {
    margin: 0;
}

.msg-info {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 10px;
    padding-top: 6px;
    border-top: 1px solid rgba(0,0,0,0.05);
}

.user-msg .msg-info {
    border-top: 1px solid rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.7);
}

.copy-btn {
    background: transparent;
    border: none;
    color: inherit;
    cursor: pointer;
    font-size: 0.75rem;
    margin-left: 10px;
    transition: var(--transition);
}

.copy-btn:hover {
    color: var(--primary-color);
}

.user-msg .copy-btn:hover {
    color: white;
}

.input-area {
    padding: 15px 20px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

#chat-form, .input-group {
    display: flex;
    gap: 10px;
}

input[type="text"] {
    flex: 1;
    padding: 12px 15px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    font-size: 1rem;
    background: var(--chat-bg);
    color: var(--text-color);
    transition: var(--transition);
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(72, 149, 239, 0.2);
}

button {
    padding: 12px 20px;
    font-size: 1rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--secondary-color);
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.action-buttons {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.btn-secondary {
    background: var(--chat-bg);
    color: var(--text-color);
    border: 1px solid var(--border);
    font-size: 0.8rem;
    padding: 8px 12px;
}

.btn-secondary:hover {
    background: var(--container-bg);
}

.disclaimer {
    font-size: 0.75rem;
    color: var(--text-light);
    text-align: center;
    margin-top: 15px;
}

.typing-indicator-wrapper {
    padding-bottom: 0;
}

.typing-indicator {
    display: flex;
    gap: 5px;
    padding: 10px 0 0 0;
    align-items: center;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: var(--text-light);
    border-radius: 50%;
    animation: typingAnimation 1.4s infinite ease-in-out;
}

@keyframes typingAnimation {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-4px); }
}

.chatbox::-webkit-scrollbar { width: 6px; }
.chatbox::-webkit-scrollbar-track { background: transparent; }
.chatbox::-webkit-scrollbar-thumb { background: var(--text-light); border-radius: 3px; }
.chatbox::-webkit-scrollbar-thumb:hover { background: var(--primary-color); }

.reset-confirmation {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex; justify-content: center; align-items: center;
    z-index: 1000; opacity: 0; pointer-events: none;
    transition: opacity 0.3s ease;
}

.reset-confirmation.active { opacity: 1; pointer-events: all; }

.reset-box {
    background: var(--container-bg); padding: 30px; border-radius: var(--radius);
    text-align: center; max-width: 400px; width: 90%;
    transform: scale(0.9); transition: transform 0.3s ease;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.reset-confirmation.active .reset-box { transform: scale(1); }
.reset-icon { font-size: 3rem; color: var(--accent-color); margin-bottom: 15px; }
.reset-buttons { display: flex; justify-content: center; gap: 15px; margin-top: 20px; }
.reset-btn { padding: 10px 20px; border-radius: var(--radius); cursor: pointer; font-weight: 500; transition: var(--transition); }
.confirm-reset { background: var(--accent-color); color: white; border: none; }
.confirm-reset:hover { background: var(--primary-color); }
.cancel-reset { background: transparent; color: var(--text-color); border: 1px solid var(--border); }
.cancel-reset:hover { background: var(--chat-bg); }


/* PERUBAHAN: Media Query untuk tampilan responsif */
@media (max-width: 768px) {
    body { padding: 0; }

    .chat-container {
        height: 100%; /* Gunakan tinggi penuh */
        max-height: none;
        border-radius: 0;
        padding: 0;
        border: none; /* Hilangkan border di mobile */
    }

    .chat-header {
        padding: 10px 15px;
        justify-content: space-between; /* Pastikan elemen header tetap di ujung */
    }

    .chat-header h2 {
        font-size: 1.2rem; /* Perkecil ukuran teks header di HP */
        margin: 0; /* Pastikan tidak ada margin berlebih */
    }

    .header-buttons {
        display: flex;
        align-items: center;
    }

    .chatbox { padding: 15px; }
    .input-area { padding: 10px; }
    #chat-form { gap: 8px; }

    /* Atur visibilitas tombol Home */
    .desktop-home-button { display: none; } /* Sembunyikan di mobile */
    .mobile-home-button {
        display: flex; /* Tampilkan di mobile */
        margin-right: 10px;
        font-size: 1.2rem; /* Sesuaikan ukuran ikon home */
    }

    /* Mode Gelap hanya ikon di HP */
    .theme-toggle .theme-text {
        display: none;
    }
    .theme-toggle i {
        margin: 0; /* Pastikan ikon tidak punya margin tambahan */
    }
    .theme-toggle {
        padding: 8px; /* Sesuaikan padding tombol mode gelap */
        border-radius: 50%; /* Bentuk bulat */
        width: 40px;
        height: 40px;
        justify-content: center; /* Tengahkan ikon */
    }


    /* Atur visibilitas tombol Home */
    .desktop-home-button { display: none; } /* Sembunyikan di mobile */
    .mobile-home-button { display: flex; } /* Tampilkan di mobile */
}