:root{--bg: #edf2f3;--bg-strong: #e3eaec;--surface: #ffffff;--surface-muted: #f7f9fa;--text: #263843;--muted: #718791;--border: #d8e2e6;--accent: #1db8cb;--accent-strong: #148fb2;--accent-soft: #d9f0f4;--danger: #e46f73;--success: #2cb07d;--warn: #d89f40;--shadow-soft: 0 10px 28px rgba(27, 57, 68, .06);--shadow-card: 0 14px 34px rgba(27, 57, 68, .07);--radius: 8px}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:Montserrat,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Inter,Arial,sans-serif;color:var(--text);background:linear-gradient(180deg,#edf2f3,#eef2f3)}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}.container{width:100%;max-width:1820px;margin:0 auto;padding:0 22px}.portal-shell{min-height:100%}.portal-topbar{position:sticky;top:0;z-index:40;background:#edf2f3f5;border-bottom:1px solid 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