:root{--primary-color: #e84b5d;--primary-hover: #d63a4b;--text-main: #2c3e50;--text-muted: #95a5a6;--border-color: #eee;--bg-body: #f7f9fc;--bg-surface: #ffffff;--container-width: 1100px;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 16px;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .03);--shadow-md: 0 6px 12px rgba(0, 0, 0, .06);--shadow-lg: 0 12px 24px rgba(0, 0, 0, .08);--transition: all .3s cubic-bezier(.25, .8, .25, 1);font-family:Helvetica Neue,Arial,Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,sans-serif;line-height:1.6;font-weight:400;color:var(--text-main);background-color:var(--bg-body);-webkit-font-smoothing:antialiased}body{margin:0;padding:0;background-color:var(--bg-body)}#rin-takeout-app{max-width:var(--container-width);margin:0 auto;padding:2rem 1rem}.tab-item{display:inline-block;cursor:pointer;color:var(--text-muted);background-color:transparent;padding:.8rem 1.2rem;font-weight:600;border-radius:30px;transition:var(--transition);font-size:.95rem;margin-right:.5rem}.tab-item:hover{color:var(--primary-color);background-color:#e84b5d0d}.tab-item.active{background-color:var(--primary-color);color:#fff!important;box-shadow:var(--shadow-sm)}.btn-primary{background-color:var(--primary-color);color:#fff;border:none;padding:.7em 1.4em;font-size:.95em;font-weight:700;cursor:pointer;transition:var(--transition);border-radius:30px;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;box-shadow:var(--shadow-sm)}.btn-primary:hover{background-color:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-secondary{background-color:#fff;color:var(--text-main);border:1px solid var(--border-color);padding:.7em 1.4em;font-size:.95em;font-weight:600;cursor:pointer;border-radius:30px;transition:var(--transition)}.btn-secondary:hover{border-color:var(--text-muted);background-color:#fcfcfc}.modal-overlay{position:fixed;inset:0;background-color:#0006;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:9999}.modal-content{background:var(--bg-surface);padding:2.5rem;border-radius:var(--radius-lg);width:90%;max-width:480px;max-height:85vh;overflow-y:auto;position:relative;box-shadow:var(--shadow-lg);border:1px solid rgba(0,0,0,.05)}.sidebar-cart-wrapper{position:sticky;top:2rem;background:var(--bg-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-md);border:none;padding:1.5rem;max-height:calc(100vh - 4rem);overflow-y:auto}