:root{color-scheme:light dark;--font-sans:'Segoe UI','Inter',system-ui,-apple-system,sans-serif;--radius:18px;--transition:0.2s ease;--bs-body-color:var(--text);--bs-heading-color:var(--text);--bs-secondary-color:var(--muted);--bs-tertiary-color:var(--muted);}:root[data-theme="dark"]{--bg:radial-gradient(circle at top,#2b0f16 0%,#1b0e12 35%,#0f0b0b 100%);--card:#1a1417;--card-border:#3b1b22;--shadow:0 16px 32px rgba(0,0,0,0.45);--accent:#b1122b;--accent-strong:#cf1a36;--text:#fffdfd;--muted:#f6e9ee;--input-bg:#140e12;--input-border:#3a1f26;--placeholder:#f0dbe1;--outline:#7a3f4c;--outline-text:#fff3f6;--alert-bg:#2a1116;--alert-border:#5b1c2a;}:root[data-theme="light"]{--bg:radial-gradient(circle at top,#ffecef 0%,#f8f1f3 45%,#f5eff1 100%);--card:#ffffff;--card-border:#f2ccd6;--shadow:0 18px 36px rgba(83,20,34,0.15);--accent:#b1122b;--accent-strong:#c61532;--text:#2b151c;--muted:#51313a;--input-bg:#fff6f8;--input-border:#e7b7c2;--placeholder:#8a5f6a;--outline:#c48b97;--outline-text:#4c2932;--alert-bg:#ffe7ec;--alert-border:#f3b9c6;}body{min-height:100vh;background:var(--bg);color:var(--text);font-family:var(--font-sans);transition:background var(--transition),color var(--transition);}.card{border:1px solid var(--card-border);background:var(--card);box-shadow:var(--shadow);border-radius:var(--radius);}.brand{letter-spacing:0.08em;text-transform:uppercase;font-size:0.75rem;color:var(--muted);}.text-muted{color:var(--muted) !important;}.form-label,.form-text,.small,.fw-semibold,.h3{color:var(--text);}.form-control{background:var(--input-bg);border-color:var(--input-border);color:var(--text);border-radius:12px;}.form-control::placeholder{color:var(--placeholder);}.form-control:focus{background:var(--input-bg);border-color:var(--accent);box-shadow:0 0 0 0.2rem rgba(177,18,43,0.25);color:var(--text);}.btn-primary{background:var(--accent);border-color:var(--accent);transition:background var(--transition),border-color var(--transition);}.btn-primary:hover{background:var(--accent-strong);border-color:var(--accent-strong);}.btn-outline-secondary{color:var(--outline-text);border-color:var(--outline);}.btn-outline-secondary:hover{background:rgba(177,18,43,0.12);color:var(--text);}.theme-toggle{font-size:0.7rem;letter-spacing:0.08em;text-transform:uppercase;padding:0.25rem 0.6rem;}.alert{border:1px solid var(--alert-border);background:var(--alert-bg);color:var(--text);}.toast-stack{position:fixed;bottom:1.5rem;right:1.5rem;z-index:1050;max-width:360px;padding:0}.toast-card{transition:opacity .2s ease,transform .2s ease;border:1px solid var(--alert-border);background:var(--alert-bg);color:var(--text);padding:0.85rem 1rem;border-radius:14px;box-shadow:var(--shadow);font-size:.95rem;display:flex;flex-direction:column;gap:.35rem;animation:toastIn .25s ease}@keyframes toastIn{from{transform:translateY(12px);opacity:0}to{transform:translateY(0);opacity:1}}@media (max-width:576px){.toast-stack{left:1rem;right:1rem;max-width:none}}