:root {
    --primary: #2563eb;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #1e293b;
    --success: #16a34a;
    --warning: #ca8a04;
    --danger: #dc2626;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

h1 { margin-bottom: 10px; }

.input-section {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
    margin-bottom: 40px;
}

input[type="text"] {
    width: 100%;
    max-width: 600px;
    padding: 15px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 16px;
}

.buttons {
    display: flex;
    gap: 15px;
}

button {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

#btnAudit { background-color: var(--primary); color: white; }
#btnContent { background-color: #7c3aed; color: white; }

button:hover { opacity: 0.9; transform: translateY(-1px); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.grid-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 768px) {
    .grid-container { grid-template-columns: 1fr; }
}

.card {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.hidden { display: none; }

/* Loading Spinner */
.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#loading { text-align: center; margin: 40px 0; }

/* Results Styling */
.device-score {
    border-bottom: 1px solid #eee;
    padding-bottom: 15px;
    margin-bottom: 15px;
}

.score-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #eee;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
    margin: 10px 0;
}

.score-good { background: #dcfce7; color: #166534; }
.score-average { background: #fef9c3; color: #854d0e; }
.score-poor { background: #fee2e2; color: #991b1b; }

.critique-box {
    background: #f1f5f9;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.recommendations .item {
    border-left: 3px solid var(--primary);
    padding-left: 15px;
    margin-bottom: 15px;
}

.recommendations h5 {
    margin: 0 0 5px 0;
    color: var(--primary);
}