:root {
    --bg-primary: #F4F5F7;
    --card-bg: #FFFFFF;
    --card-border: #E2E8F0;
    --text-primary: #1A1F24;
    --text-secondary: #5A6670;
    --text-header: #091A2B;
    --accent: #FC671A; /* Bank of Georgia Orange */
    --accent-hover: #E5550D;
    
    --segmented-bg: #F0F4F8;
    --segmented-active-bg: #FFFFFF;

    --checkbox-bg: #FFFFFF;
    --checkbox-border: #CBD5E1;
    
    --result-bg: #FFF5F0;
    --result-border: #FFE4D6;
    --result-text: #D35400;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
}

body.dark-theme {
    --bg-primary: #121212;
    --card-bg: #1C1C1C;
    --card-border: #333333;
    --text-primary: #F5F5F5;
    --text-secondary: #A3A3A3;
    --text-header: #FFFFFF;
    
    --segmented-bg: #0A0A0A;
    --segmented-active-bg: #333333;
    
    --checkbox-bg: #1C1C1C;
    --checkbox-border: #4D4D4D;
    
    --result-bg: #26160d;
    --result-border: #3b2214;
    --result-text: #FC671A;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.7);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 0;
    line-height: 1.35;
}

.app-container {
    width: 100%;
    max-width: 800px;
    background: var(--card-bg);
    border-left: 1px solid var(--card-border);
    border-right: 1px solid var(--card-border);
    border-bottom: 1px solid var(--card-border);
    border-top: none;
    border-radius: 0 0 12px 12px;
    padding: 0.75rem 1.5rem 1rem;
    box-shadow: var(--shadow-md);
}

header {
    text-align: center;
    margin-bottom: 0.75rem;
}

header h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-header);
    margin-bottom: 0;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.theme-toggle {
    position: absolute;
    right: 0;
    top: 0;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.4rem;
    border-radius: 50%;
    transition: background 0.2s, color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    color: var(--text-primary);
    background: var(--card-border);
}

.sun-icon {
    display: none;
}

body.dark-theme .moon-icon {
    display: none;
}

body.dark-theme .sun-icon {
    display: block;
}

.card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 0.75rem 1.25rem;
    margin-bottom: 0.75rem;
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card h2 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: #091A2B;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 0.25rem;
}

.input-group {
    margin-bottom: 0.6rem;
}

.input-group:last-child {
    margin-bottom: 0;
}

.label-row > label {
    display: block;
    font-weight: 600;
    margin-bottom: 0;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.segmented-control {
    display: flex;
    background: var(--segmented-bg);
    border-radius: 8px;
    padding: 3px;
    margin-bottom: 0.25rem;
}

.segmented-control input[type="radio"] {
    display: none;
}

.segmented-control label {
    flex: 1;
    text-align: center;
    padding: 0.4rem 1rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.1s ease;
    user-select: none;
}

.segmented-control label:hover {
    color: var(--text-primary);
}

.segmented-control input[type="radio"]:checked + label {
    background: var(--segmented-active-bg);
    color: var(--accent);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    font-weight: 600;
}

.helper-text {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-left: 0.25rem;
}

.label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.4rem;
}

.tooltip {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: help;
    margin-left: 0.5rem;
    font-family: system-ui, -apple-system, sans-serif;
}

.tooltip-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 17px;
    height: 17px;
    border-radius: 50%;
    background-color: var(--card-border);
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 700;
    transition: background-color 0.2s, color 0.2s;
}

.tooltip:hover .tooltip-icon {
    background-color: var(--text-secondary);
    color: var(--card-bg);
}

.tooltip-content {
    visibility: hidden;
    opacity: 0;
    width: max-content;
    max-width: 250px;
    background-color: var(--text-header);
    color: var(--card-bg);
    text-align: left;
    border-radius: 6px;
    padding: 0.6rem 0.8rem;
    position: absolute;
    z-index: 10;
    bottom: 120%;
    right: -2px;
    box-shadow: var(--shadow-md);
    font-size: 0.8rem;
    line-height: 1.4;
    transition: opacity 0.2s, bottom 0.2s, visibility 0.2s;
    pointer-events: none;
}

.tooltip:hover .tooltip-content {
    visibility: visible;
    opacity: 1;
    bottom: 135%;
}

.tooltip-content::after {
    content: "";
    position: absolute;
    top: 100%;
    right: 5px;
    border-width: 6px;
    border-style: solid;
    border-color: var(--text-header) transparent transparent transparent;
}

.checkbox-container {
    display: flex;
    align-items: flex-start;
    position: relative;
    padding-left: 30px;
    margin-bottom: 0.75rem;
    cursor: pointer;
    user-select: none;
}

.checkbox-container:last-child {
    margin-bottom: 0;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 2px;
    left: 0;
    height: 22px;
    width: 22px;
    background-color: var(--checkbox-bg);
    border: 2px solid var(--checkbox-border);
    border-radius: 6px;
    transition: all 0.2s ease;
}

.checkbox-container:hover input ~ .checkmark {
    border-color: var(--text-secondary);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--accent);
    border-color: var(--accent);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-container .checkmark:after {
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.label-text {
    display: flex;
    flex-direction: column;
}

.label-text strong {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.label-text span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.result-container {
    text-align: center;
    background: var(--result-bg);
    border: 1px solid var(--result-border);
    border-radius: 10px;
    padding: 1rem;
    margin-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.result-container h2 {
    color: var(--result-text);
    margin-bottom: 0;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
}

.points-wrapper {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 60px;
    height: 60px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 4px 10px rgba(252, 103, 26, 0.3);
}

.points-value {
    font-size: 2rem;
    font-weight: 700;
    color: #FFFFFF;
    line-height: 1;
}

@keyframes pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.pop {
    animation: pop 0.2s ease-out;
}

.form-actions {
    text-align: right;
    margin-top: 0.5rem;
}

.reset-btn {
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.1s ease;
}

.reset-btn:hover {
    background: var(--card-border);
    color: var(--text-primary);
}

@media (max-width: 600px) {
    .app-container {
        padding: 1.5rem;
        border-radius: 0;
        min-height: 100vh;
    }
    
    body {
        padding: 0;
    }
    
    header h1 {
        font-size: 1.8rem;
    }
}