/* GIAO DIỆN SOFT BRUTALISM - FAVICON GENERATOR */
.tool-container {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    max-width: 1000px; margin: 20px auto;
    border: 3px solid #111111; border-radius: 12px;
    box-shadow: 6px 6px 0px #111111; padding: 30px;
    background: #ffffff; color: #111111; box-sizing: border-box;
}

h2.tool-title {
    font-family: 'Montserrat', sans-serif; font-size: 2rem; text-align: center;
    text-transform: uppercase; margin-top: 0; margin-bottom: 25px; font-weight: 900;
}

.main-layout { display: grid; grid-template-columns: 1fr; gap: 30px; }
@media (min-width: 850px) { .main-layout { grid-template-columns: 1fr 1fr; } }

.panel-heading {
    font-family: 'Montserrat', sans-serif; font-size: 1.2rem; font-weight: 900;
    margin-top: 0; margin-bottom: 20px; border-bottom: 3px dashed #111111; padding-bottom: 10px;
}

/* --- Upload Area --- */
.upload-zone {
    border: 4px dashed #111111; border-radius: 12px; background-color: #f4f4f4;
    padding: 50px 20px; text-align: center; cursor: pointer; transition: background-color 0.2s, transform 0.2s;
}
.upload-zone:hover, .upload-zone.dragover { background-color: #e2f0cb; transform: scale(1.02); }
.upload-icon { font-size: 3rem; display: block; margin-bottom: 15px; }
.upload-zone h3 { margin: 0 0 10px 0; font-family: 'Montserrat', sans-serif; font-size: 1.2rem; }
.upload-zone p { margin: 5px 0; color: #555; font-weight: 600; font-size: 0.95rem; }

/* --- Browser Tab Preview --- */
.controls-area { margin-top: 20px; }
.browser-tab-preview {
    border: 3px solid #111111; border-radius: 8px; overflow: hidden;
    background-color: #e0e0e0; margin-bottom: 20px; box-shadow: 4px 4px 0px #111111;
}
.browser-header { background-color: #d0d0d0; padding: 10px; border-bottom: 2px solid #111; }
.browser-dots { display: flex; gap: 6px; }
.browser-dots span { width: 12px; height: 12px; border-radius: 50%; border: 2px solid #111; background-color: #ffb7b2; }
.browser-dots span:nth-child(2) { background-color: #fdfd96; }
.browser-dots span:nth-child(3) { background-color: #b5ead7; }

.browser-tabs { display: flex; padding: 10px 10px 0 10px; gap: 5px; }
.tab {
    display: flex; align-items: center; gap: 8px; padding: 8px 15px;
    background-color: #ccc; border: 2px solid #111; border-bottom: none;
    border-radius: 8px 8px 0 0; font-size: 0.85rem; font-weight: 600; width: 150px;
}
.tab.active { background-color: #fff; height: 35px; }
.tab img { width: 16px; height: 16px; border-radius: 2px; }
.fake-icon { width: 16px; height: 16px; background-color: #999; border-radius: 2px; }
.tab-title { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tab-close { font-size: 1.2rem; cursor: pointer; color: #666; line-height: 1; }

/* --- Nút Bấm --- */
button {
    cursor: pointer; font-family: 'Montserrat', sans-serif; font-size: 1rem;
    font-weight: 900; padding: 12px 15px; border: 3px solid #111111; border-radius: 8px;
    box-shadow: 4px 4px 0px #111111; transition: transform 0.1s, box-shadow 0.1s;
    text-transform: uppercase; color: #111111; outline: none; width: 100%;
}
button:active:not(:disabled) { transform: translate(4px, 4px); box-shadow: 0px 0px 0px #111111; }

.action-buttons { display: grid; grid-template-columns: 2fr 1fr; gap: 15px; }
.btn-generate { background-color: #ffb7b2; }
.btn-clear { background-color: #eceae4; }
.btn-download-all { background-color: #fdfd96; margin-top: 15px; font-size: 1.1rem; padding: 15px;}
.btn-copy { background-color: #b5ead7; margin-top: 10px; }

/* --- Kết quả --- */
.result-panel { background-color: #f9f9f9; border: 3px solid #111111; border-radius: 8px; padding: 25px; box-shadow: 4px 4px 0px #111111; }

.favicon-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-bottom: 20px; }

.favicon-item {
    display: flex; flex-direction: column; align-items: center; justify-content: space-between;
    background-color: #fff; border: 2px solid #111; border-radius: 8px; padding: 15px; text-align: center;
}
.favicon-item img { border: 1px dashed #ccc; margin-bottom: 10px; max-width: 100%; object-fit: contain; }
.favicon-item span { font-weight: 800; font-size: 0.9rem; margin-bottom: 10px; }
.btn-download-single { background-color: #e2f0cb; font-size: 0.8rem; padding: 8px; box-shadow: 2px 2px 0px #111; }
.btn-download-single:active { transform: translate(2px, 2px); box-shadow: 0px 0px 0px #111; }

/* --- Code --- */
.code-wrapper { background-color: #e6f7ff; border: 2px solid #111111; border-radius: 8px; padding: 15px; }
.code-wrapper h4 { margin: 0 0 10px 0; font-family: 'Montserrat', sans-serif; font-size: 0.9rem; }
.code-box {
    background-color: #111111; color: #b5ead7; padding: 12px; border-radius: 6px;
    font-family: monospace; font-size: 0.9rem; word-break: break-all;
    max-height: 120px; overflow-y: auto; white-space: pre-wrap; line-height: 1.4;
}

#toastFavicon {
    visibility: hidden; min-width: 200px; background-color: #111111; color: #ffffff;
    text-align: center; border-radius: 8px; padding: 12px; position: fixed;
    z-index: 9999; bottom: 30px; left: 50%; transform: translateX(-50%);
    font-weight: bold; opacity: 0; transition: opacity 0.3s, bottom 0.3s;
}
#toastFavicon.show { visibility: visible; opacity: 1; bottom: 50px; }