:root { --primary: #002b49; --accent: #ff6b00; --bg: #f4f7f9; }
body { font-family: 'Inter', system-ui, sans-serif; background: var(--bg); display: flex; justify-content: center; padding: 40px 20px; margin: 0; }
.container { background: white; padding: 40px; border-radius: 16px; box-shadow: 0 15px 35px rgba(0,0,0,0.1); width: 100%; max-width: 900px; }
header { text-align: center; margin-bottom: 30px; }
h1 { color: var(--primary); font-size: 2.5rem; margin: 0; }
h1 span { color: var(--accent); }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; margin-bottom: 30px; }
.card { background: #fcfcfc; padding: 25px; border-radius: 12px; border: 1px solid #edf2f7; }
h3 { margin-top: 0; color: var(--primary); display: flex; align-items: center; gap: 10px; }
input { width: 100%; padding: 12px; margin: 10px 0; border: 1px solid #e2e8f0; border-radius: 8px; font-size: 14px; box-sizing: border-box; transition: 0.3s; }
input:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px rgba(255,107,0,0.1); }
button { width: 100%; padding: 18px; background: var(--primary); color: white; border: none; border-radius: 8px; font-size: 18px; font-weight: 700; cursor: pointer; transition: 0.3s; }
button:hover { background: #003a63; transform: translateY(-2px); }
button:disabled { background: #cbd5e0; cursor: not-allowed; }

/* Progress Bar */
.progress-wrapper { margin-top: 30px; }
.progress-info { display: flex; justify-content: space-between; font-weight: 600; margin-bottom: 8px; color: var(--primary); }
.progress-container { background: #edf2f7; height: 12px; border-radius: 10px; overflow: hidden; }
.progress-bar { background: linear-gradient(90deg, var(--accent), #ff9e57); height: 100%; width: 0%; transition: width 0.8s ease; }

/* Log Area */
.log-container { margin-top: 25px; border-radius: 8px; overflow: hidden; border: 1px solid #2d3748; }
.log-header { background: #2d3748; color: white; padding: 8px 15px; font-size: 12px; font-weight: bold; }
#logArea { background: #1a202c; color: #63ed94; padding: 15px; margin: 0; height: 180px; font-size: 12px; line-height: 1.6; overflow-y: auto; white-space: pre-wrap; }