:root {
    --color-bg: #fffaf7;
    --color-surface: #eaf7f9;
    --color-ink: #4a423c;
    --color-ink-soft: #b0a399;
    --color-accent: #d1edf2;
    --color-accent-strong: #1b6b78;
    --color-accent-soft: #eaf7f9;
    --color-line: #dcedf0;

    --color-kakao: #fee500;
    --color-kakao-text: #191600;

    --font-body: "Pretendard Variable", "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
    --font-display: "Baloo 2", var(--font-body);

    --space-1: 8px;
    --space-2: 16px;
    --space-3: 24px;
    --space-4: 40px;
    --space-5: 64px;

    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-ink);
    -webkit-font-smoothing: antialiased;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    padding: 16px 28px;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: filter 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
}

.btn:hover {
    filter: brightness(0.98);
}

.btn:active {
    transform: scale(0.98);
}

.btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

.btn-lg {
    width: 100%;
    padding: 20px 28px;
    font-size: 17px;
    border-radius: var(--radius-xl);
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-accent-strong);
    box-shadow: 0 10px 24px -12px rgba(27, 107, 120, 0.4);
}

.btn-kakao {
    background-color: var(--color-kakao);
    color: var(--color-kakao-text);
    box-shadow: 0 10px 24px -12px rgba(25, 22, 0, 0.25);
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 12px 20px;
    border-radius: 999px;
    background: var(--color-surface);
    border: 1px solid var(--color-line);
    color: var(--color-ink);
    font-size: 14px;
    font-weight: 500;
}

.chip-icon {
    color: var(--color-accent-strong);
    flex-shrink: 0;
}