:root {
    --primary-color: #eb4e1b;
    --accent-color: #253668;
    --bg-color: #ffffff;
    --text-color: #333333;
    --card-bg: #f8f9fa;
    --navbar-bg: #ffffff;
}

[data-bs-theme="dark"] {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --card-bg: #1e1e1e;
    --navbar-bg: #1e1e1e;
}

.filter-white {
    filter: brightness(0) invert(1);
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    transition: background-color 0.3s, color 0.3s;
}

.navbar {
    background-color: var(--navbar-bg);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #c5351a;
    border-color: #c5351a;
}

.text-accent {
    color: var(--accent-color);
}

.card {
    background-color: var(--card-bg);
    border: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.hero-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--accent-color), #3a539b);
    color: white;
}

.upload-box {
    border: 2px dashed #ccc;
    padding: 40px;
    text-align: center;
    border-radius: 10px;
    cursor: pointer;
    transition: border-color 0.3s;
}

.upload-box:hover {
    border-color: var(--primary-color);
}

.theme-toggle {
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: background-color 0.3s;
}

.theme-toggle:hover {
    background-color: rgba(0,0,0,0.05);
}

[data-bs-theme="dark"] .theme-toggle:hover {
    background-color: rgba(255,255,255,0.1);
}