:root {
    --primary-color: #004D5A; /* Meritis Dark Teal */
    --secondary-color: #E5B560; /* Meritis Gold */
    --bg-color: #FDFBF0; /* Cream Background */
    --text-color: #333333;
    --white: #ffffff;
    --light-gray: #f4f4f4;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
}

/* Header */
header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

header h1 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.main-content {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* Login Screen */
#login {
    text-align: center;
    margin-top: 100px;
    padding: 50px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

#login h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

/* Dashboard Layout */
.container {
    display: flex;
    gap: 25px;
    margin-bottom: 25px;
}

.panel {
    background: var(--white);
    border-radius: 12px;
    padding: 25px;
    flex: 1;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    border: 1px solid rgba(0,0,0,0.05);
}

.panel h2 {
    color: var(--primary-color);
    margin-top: 0;
    border-bottom: 3px solid var(--secondary-color);
    padding-bottom: 10px;
    margin-bottom: 25px;
    font-size: 1.4rem;
}

.panel h3 {
    color: #555;
    margin-top: 20px;
    font-size: 1.1rem;
}

/* Controls */
button {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    margin-right: 8px;
    margin-bottom: 8px;
}

button:hover {
    background-color: #003840;
    transform: translateY(-1px);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

button:disabled {
    background-color: #cccccc;
    color: #666666;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

input, select {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    margin-right: 8px;
    margin-bottom: 15px;
    font-size: 0.9rem;
    width: 100%;
    box-sizing: border-box;
}

/* Status & Portfolio */
.status-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.status-value {
    font-weight: bold;
    color: var(--primary-color);
}

#portfolio {
    list-style: none;
    padding: 0;
    margin-top: 15px;
}

#portfolio li {
    padding: 10px;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    justify-content: space-between;
}

#portfolio li:last-child {
    border-bottom: none;
}

/* Charts */
.charts {
    display: flex;
    gap: 25px;
    margin-top: 25px;
}

.chart-container {
    background: var(--white);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    flex: 1;
    height: 400px;
    border: 1px solid rgba(0,0,0,0.05);
}

/* Log */
#log {
    height: 200px;
    overflow-y: auto;
    background: var(--white);
    border: 1px solid #eee;
    padding: 15px;
    border-radius: 8px;
    font-family: 'Consolas', monospace;
    margin-top: 25px;
    font-size: 0.9rem;
    color: #555;
}

#log div {
    margin-bottom: 4px;
    border-bottom: 1px solid #f9f9f9;
    padding-bottom: 2px;
}

/* Tabs */
.tabs {
    margin-bottom: 15px;
    border-bottom: 1px solid #ddd;
}

.tab-btn {
    background: none;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 1rem;
    color: #666;
    border-bottom: 3px solid transparent;
    margin-bottom: -1px;
    border-radius: 0;
    box-shadow: none;
}

.tab-btn:hover {
    background: #f9f9f9;
    color: var(--primary-color);
    transform: none;
    box-shadow: none;
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom: 3px solid var(--primary-color);
    font-weight: bold;
}

.tab-content {
    display: none;
    background: #f4f4f4;
    padding: 15px;
    border-radius: 6px;
    border: 1px solid #ddd;
}

.tab-content.active {
    display: block;
}

pre {
    margin: 0;
    white-space: pre-wrap;
    font-family: 'Consolas', monospace;
    font-size: 0.9rem;
    color: #333;
}