* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    min-height: 100vh;
    padding: 15px;
}
.container {
    max-width: 600px;
    margin: 10px auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
}
.header {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header h2 { font-size: 20px; }
.btn-back {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 2px solid white;
    padding: 8px 15px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
}
.content { padding: 20px; }
.form-group {
    margin-bottom: 20px;
}
label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}
input, select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 15px;
}
input:focus, select:focus {
    outline: none;
    border-color: #ff6b6b;
}
.btn {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 10px;
}
.btn-primary {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    color: white;
}
.btn-secondary {
    background: #6c757d;
    color: white;
}

/* Dark Mode */
body.dark-mode { background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%); }
body.dark-mode .container { background: #0f0f23; color: #e0e0e0; }
body.dark-mode .header { }
body.dark-mode .content { color: #e0e0e0; }
body.dark-mode input, body.dark-mode select, body.dark-mode textarea { background: #16213e; color: #e0e0e0; border-color: #333; }
body.dark-mode .card-item, body.dark-mode .summary-card { border-color: #333; }

@media (max-width: 600px) {
    .summary-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .cards-grid { grid-template-columns: 1fr !important; }
    .header { flex-direction: column; text-align: center; gap: 8px; }
}