/* ========================================
   ベース: CSS変数、リセット、body、フォント
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Noto+Sans+JP:wght@400;500;700&display=swap');

:root {
    --primary: #1e2d4a;
    --primary-dark: #16233a;
    --primary-hover: #263754;
    --secondary: #8b6914;
    --secondary-light: #c49b2c;
    --accent: #06b6d4;
    --success: #2d6a4f;
    --warning: #f59e0b;
    --danger: #b33d3d;
    --bg: #f7f8fa;
    --card-bg: #ffffff;
    --text: #0f1729;
    --text-body: #1a2332;
    --text-light: #4a5568;
    --text-mute: #8892a4;
    --border: #d4d8e1;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 2px 6px rgba(0, 0, 0, 0.08);
    --radius: 4px;
}

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

html {
    scroll-behavior: smooth;
}

[id^="sec-"] {
    scroll-margin-top: 16px;
}

body {
    font-family: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg);
    color: var(--text-body);
    line-height: 1.6;
}

.hidden {
    display: none !important;
}

.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}