/* 
  styles.css
  Minimal, responsive Light Mode UI for ETFT SIM v1.0.0 
*/

:root {
    --bg-color: #f4f4f9;
    --text-primary: #333333;
    --text-secondary: #666666;
    --primary-blue: #007bff;
    --primary-blue-hover: #0056b3;
    --danger-red: #dc3545;
    --danger-red-hover: #a71d2a;
    --success-green: #28a745;
    --success-green-hover: #1e7e34;
    --surface-color: #ffffff;
    --border-color: #e0e0e0;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.app-container {
    background-color: var(--surface-color);
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.05);
    text-align: center;
    max-width: 450px;
    width: 100%;
    border: 1px solid var(--border-color);
}

header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.control-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

/* Button Base Styles */
.btn {
    font-size: 1.1rem;
    font-weight: 600;
    padding: 12px 32px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
    color: white;
    width: 100%;
    max-width: 250px;
}

.btn:active {
    transform: scale(0.97);
}

/* Specific Button States */
.btn-start {
    background-color: var(--primary-blue);
}
.btn-start:hover {
    background-color: var(--primary-blue-hover);
}

.btn-abort {
    background-color: var(--danger-red);
}
.btn-abort:hover {
    background-color: var(--danger-red-hover);
}

.btn-download {
    background-color: var(--success-green);
    margin-top: 10px;
}
.btn-download:hover {
    background-color: var(--success-green-hover);
}

/* Status Readout */
.status-container {
    background-color: var(--bg-color);
    width: 100%;
    padding: 15px;
    border-radius: 8px;
    border: 1px inset var(--border-color);
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#status-report {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.4;
    word-wrap: break-word;
}