:root {
    --primary-color: #2563eb;
    --primary-light: #eff6ff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
}

body {
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-primary);
    background-color: #f8fafc !important;
}

/* Card Styles */
.card {
    border: none;
    box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.05), 0 5px 15px -5px rgba(0, 0, 0, 0.02) !important;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

/* Section Group (Input Grouping) */
.section-group {
    position: relative;
    padding-left: 1rem;
    border-left: 3px solid transparent;
    transition: border-color 0.3s;
}

.section-group:hover,
.section-group:focus-within {
    border-left-color: var(--primary-color);
}

/* Form Controls */
.form-select,
.form-control {
    border-radius: 0.75rem;
    border: 1px solid #e2e8f0;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.2s;
}

.form-select:focus,
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Point Badge */
.point-badge {
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5em 0.8em;
    border-radius: 0.5rem;
    transition: all 0.3s;
}

.section-group:hover .point-badge {
    background-color: var(--primary-color) !important;
    color: white !important;
    border-color: var(--primary-color) !important;
}

/* Result Box */
.result-box {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    position: relative;
    overflow: hidden;
}

.result-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.8) 0%, rgba(255, 255, 255, 0) 70%);
    opacity: 0.5;
    pointer-events: none;
}

/* Utility */
.letter-spacing-1 {
    letter-spacing: 1px;
}

.hover-lift {
    transition: transform 0.2s, box-shadow 0.2s;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .15) !important;
}

/* Input Group Buttons (Increment/Decrement) */
.input-group button {
    border-color: #e2e8f0;
    color: var(--text-secondary);
    width: 48px;
    font-size: 1.2rem;
}

.input-group button:hover {
    color: var(--primary-color);
    background-color: var(--primary-light);
    border-color: var(--primary-color);
}

.input-group input {
    border-color: #e2e8f0;
    font-size: 1.2rem;
    color: var(--primary-color);
}

/* Accordion Custom */
.accordion-button:not(.collapsed) {
    color: var(--primary-color);
    background-color: transparent;
    box-shadow: none;
}

.accordion-button::after {
    background-size: 0.8rem;
    opacity: 0.5;
}