:root {
    --bg-body: #0d1117;
    --bg-card: #161b22;
    --bg-subtle: #21262d;
    --border: #30363d;
    --text-main: #c9d1d9;
    --text-muted: #8b949e;
    --accent: #58a6ff;
    --success: #238636;
    --danger: #da3633;
    --code-bg: #0d1117;
    --shadow: 0 8px 24px rgba(0,0,0,0.2);
}

[data-theme="light"] {
    --bg-body: #f6f8fa;
    --bg-card: #ffffff;
    --bg-subtle: #f6f8fa;
    --border: #d0d7de;
    --text-main: #24292f;
    --text-muted: #57606a;
    --accent: #0969da;
    --success: #1a7f37;
    --danger: #cf222e;
    --code-bg: #f6f8fa;
    --shadow: 0 8px 24px rgba(0,0,0,0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    transition: background-color 0.4s ease, color 0.4s ease;
}

input, button, select, textarea {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

.app-wrapper {
    width: 100%;
    max-width: 900px;
    display: flex; flex-direction: column; gap: 20px;
}

.navbar { opacity: 0; animation: slideDownBlur 1s cubic-bezier(0.2, 0.8, 0.2, 1) forwards; }
.input-section { opacity: 0; animation: slideUpFocus 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.2s forwards; }
.result-section { opacity: 0; animation: slideUpFocus 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.4s forwards; }
footer { opacity: 0; animation: simpleFade 1s ease 0.6s forwards; }

@keyframes slideDownBlur {
    0% { opacity: 0; transform: translateY(-30px); filter: blur(10px); }
    100% { opacity: 1; transform: translateY(0); filter: blur(0); }
}
@keyframes slideUpFocus {
    0% { opacity: 0; transform: translateY(40px) scale(0.95); filter: blur(10px); }
    100% { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}
@keyframes simpleFade {
    0% { opacity: 0; transform: translateY(10px); }
    100% { opacity: 1; transform: translateY(0); }
}

.navbar {
    display: flex; justify-content: space-between; align-items: center;
    background: rgba(22, 27, 34, 0.7); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    padding: 0 20px; height: 70px;
    border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow);
}
[data-theme="light"] .navbar { background: rgba(255, 255, 255, 0.7); }

.brand { display: flex; align-items: center; gap: 12px; height: 100%; color: var(--text-main); }

.logo-container { display: flex; align-items: center; justify-content: center; width: 48px; height: 48px; }

.custom-logo {
    width: 40px;
    height: 40px;
    object-fit: cover;
    filter: drop-shadow(0 0 8px rgba(88, 166, 255, 0.4));
    animation: float 6s ease-in-out infinite;
    border-radius: 12px;
}

.brand-text { display: flex; flex-direction: column; justify-content: center; line-height: 1.1; }
.title { font-weight: 700; font-size: 16px; letter-spacing: -0.5px; }
.badge { font-size: 10px; color: var(--text-muted); border: 1px solid var(--border); padding: 1px 6px; border-radius: 20px; width: fit-content; background: var(--bg-subtle); margin-top: 2px; }

.controls { display: flex; gap: 10px; align-items: center; }
.form-select {
    background: var(--bg-subtle); color: var(--text-main); border: 1px solid var(--border);
    padding: 6px 10px; border-radius: 8px; font-size: 12px; outline: none; transition: 0.2s; cursor: pointer;
}
.btn-icon {
    background: var(--bg-subtle); border: 1px solid var(--border); color: var(--text-main);
    padding: 6px 10px; border-radius: 8px; cursor: pointer; display: flex; align-items: center; transition: 0.2s;
}
.btn-icon:hover { background: var(--border); }

.main-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }

.card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
    overflow: hidden; display: flex; flex-direction: column; height: 100%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.hover-lift:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--accent); }

.card-header {
    background: var(--bg-subtle); padding: 14px 20px;
    border-bottom: 1px solid var(--border); font-size: 14px; font-weight: 600;
}
.card-body { padding: 24px; display: flex; flex-direction: column; gap: 16px; flex: 1;}

.drop-zone {
    border: 2px dashed var(--border); border-radius: 12px; padding: 40px 20px;
    text-align: center; cursor: pointer; position: relative;
    background: var(--bg-body); transition: 0.3s; overflow: hidden;
}
.drop-zone:hover { border-color: var(--accent); background: var(--bg-subtle); }

.upload-icon-ai { width: 48px; height: 48px; color: var(--text-muted); margin-bottom: 10px; transition: 0.3s; }
.drop-zone:hover .upload-icon-ai { color: var(--accent); transform: scale(1.1); }

.scan-beam {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, transparent, rgba(88, 166, 255, 0.1), transparent);
    transform: translateY(-100%); transition: 0.1s;
}
.drop-zone:hover .scan-beam { animation: scan 1.5s infinite; }

.drop-text { font-weight: 600; margin-top: 10px; font-size: 14px; }
.drop-zone input { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }

.separator { text-align: center; font-size: 12px; color: var(--text-muted); position: relative; margin: 10px 0; }
.separator::before { content:''; position: absolute; top:50%; left:0; width:100%; height:1px; background:var(--border); z-index:0; }
.separator span { background: var(--bg-card); padding: 0 10px; position: relative; z-index:1; }

.form-control {
    width: 100%; background: var(--bg-body); border: 1px solid var(--border);
    color: var(--text-main); padding: 12px; border-radius: 8px; outline: none; font-size: 12px;
    transition: 0.2s;
}
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2); }

.meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.meta-item { display: flex; flex-direction: column; background: var(--bg-subtle); padding: 8px 12px; border-radius: 6px; }
.label { font-size: 10px; color: var(--text-muted); margin-bottom: 2px; font-weight: 600; text-transform: uppercase; }
.value.mono { font-size: 12px; word-break: break-all; }

.detection-box { margin-top: 5px; }
.status-badge {
    display: flex; align-items: center; gap: 10px;
    font-weight: 600; font-size: 15px; color: var(--text-main);
    padding: 10px; border: 1px solid var(--border); border-radius: 6px;
    background: var(--bg-body);
}
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--text-muted); }
.pulse-dot { box-shadow: 0 0 0 0 rgba(35, 134, 54, 0.4); animation: dotPulse 2s infinite; }

.hex-box code {
    display: block; background: var(--code-bg); padding: 12px;
    border-radius: 6px; border: 1px solid var(--border);
    color: var(--accent);
    font-size: 12px; letter-spacing: 1px;
}

.alert-box {
    background: rgba(218, 54, 51, 0.1); border: 1px solid var(--danger);
    color: var(--danger); padding: 12px; border-radius: 8px;
    display: flex; gap: 12px; align-items: center; font-size: 13px;
}
.wobble { animation: wobble 1s ease-in-out infinite; }
.hidden { display: none; }

.forensic-note {
    background: var(--bg-subtle); border: 1px solid var(--border);
    border-radius: 8px; padding: 16px; margin-top: auto; position: relative; overflow: hidden;
}
.forensic-note::before { content:''; position: absolute; left: 0; top: 0; width: 3px; height: 100%; background: var(--accent); }
.note-header { font-size: 11px; font-weight: 600; color: var(--text-muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.note-text { font-size: 13px; line-height: 1.6; color: var(--text-main); }

footer {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 10px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.footer-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: 0.2s;
}

.footer-link:hover {
    color: var(--text-main);
    text-shadow: 0 0 10px var(--accent);
}

.preview-container {
    width: 100%;
    height: 140px;
    background: var(--bg-body);
    border: 1px dashed var(--border);
    border-radius: 8px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.preview-container img {
    height: 100%;
    width: auto;
    object-fit: contain;
    border-radius: 4px;
}

.preview-icon {
    color: var(--text-muted);
    width: 48px;
    height: 48px;
}
.preview-placeholder {
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    opacity: 0.5;
    pointer-events: none;
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-4px); } }
@keyframes pulse { 0%, 100% { opacity: 0.2; } 50% { opacity: 1; } }
@keyframes scan { 0% { transform: translateY(-100%); } 100% { transform: translateY(200%); } }
@keyframes dotPulse { 0% { box-shadow: 0 0 0 0 rgba(35, 134, 54, 0.4); } 70% { box-shadow: 0 0 0 6px rgba(35, 134, 54, 0); } 100% { box-shadow: 0 0 0 0 rgba(35, 134, 54, 0); } }
@keyframes wobble { 0%, 100% { transform: rotate(0); } 25% { transform: rotate(-10deg); } 75% { transform: rotate(10deg); } }

@media (max-width: 768px) {
    body { padding: 15px; align-items: flex-start; }
    .main-grid { grid-template-columns: 1fr; gap: 15px; }
    .card { height: auto; min-height: 250px; }
    .app-wrapper { gap: 15px; }
    .navbar { padding: 0 15px; }
}