:root {
  --iot-bg: #090909;
  --iot-bg-soft: #0f0f0f;
  --iot-surface: #161616;
  --iot-surface-raised: #1b1b1b;
  --iot-surface-deep: #0c0c0c;
  --iot-text: #f1ede5;
  --iot-text-muted: #aaa39a;
  --iot-text-dim: #77736e;
  --iot-ivory: #e6ded0;
  --iot-accent: #b32739;
  --iot-accent-bright: #c53045;
  --iot-accent-dark: #6f1722;
  --iot-warning: #d03a4e;
  --iot-star: #e6b65e;
  --iot-border: rgba(255, 255, 255, 0.10);
  --iot-border-strong: rgba(255, 255, 255, 0.19);
  --iot-border-red: rgba(197, 48, 69, 0.55);
  --iot-shadow: 0 18px 42px rgba(0, 0, 0, 0.32);
  --iot-font-serif: "Yu Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", "Times New Roman", serif;
  --iot-font-sans: "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Meiryo", sans-serif;
  --iot-container: 1440px;
  --iot-gutter: clamp(16px, 3.2vw, 48px);
  --iot-section-space: clamp(56px, 7vw, 100px);
  --iot-radius: 8px;
  --iot-radius-small: 5px;
  --iot-header-height: 76px;
  --iot-ease: 180ms ease;
}