.app{min-height:100vh;padding:32px 24px 48px}.app-header{max-width:1280px;margin:0 auto 32px}.brand{display:flex;align-items:center;gap:14px}.brand-mark{width:44px;height:44px;border-radius:10px;background:var(--accent);box-shadow:inset 0 -2px #00000014;flex-shrink:0}.brand-label{margin:0 0 2px;font-size:.75rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--text-muted)}.app-header h1{margin:0;font-size:1.5rem;font-weight:700;letter-spacing:-.02em;color:var(--text)}.header-subtitle{margin:10px 0 0 58px;font-size:.95rem;color:var(--text-muted)}.layout{display:grid;grid-template-columns:minmax(300px,380px) 1fr;gap:28px;max-width:1280px;margin:0 auto;align-items:start}.sidebar{display:flex;flex-direction:column;gap:16px;position:sticky;top:24px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.card h2{margin:0 0 16px;font-size:.95rem;font-weight:600;color:var(--text)}.card-header h2{margin:0}.amount-chip{background:var(--accent-dark);color:#fff;padding:5px 12px;border-radius:999px;font-size:.85rem;font-weight:600;letter-spacing:-.01em}.field-grid{display:flex;flex-direction:column;gap:14px}.field{display:flex;flex-direction:column;gap:6px}.field>span{font-size:.8rem;font-weight:500;color:var(--text-muted)}.field input{width:100%;padding:11px 13px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font-size:.95rem;transition:border-color .15s,box-shadow .15s}.field input::placeholder{color:var(--text-subtle)}.field input:focus{outline:none;border-color:var(--accent-dark);box-shadow:0 0 0 3px #11111114}.input-with-prefix{display:flex;align-items:stretch}.input-prefix{display:flex;align-items:center;padding:0 13px;border:1px solid var(--border-strong);border-right:none;border-radius:var(--radius-sm) 0 0 var(--radius-sm);background:var(--surface-muted);color:var(--text-muted);font-size:.95rem;font-weight:500}.input-with-prefix input{border-radius:0 var(--radius-sm) var(--radius-sm) 0}.meta-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px;padding-top:18px;border-top:1px solid var(--border)}.meta-item{display:flex;flex-direction:column;gap:4px;padding:10px 12px;background:var(--surface-muted);border-radius:var(--radius-sm);border:1px solid var(--border)}.meta-label{font-size:.72rem;font-weight:600;letter-spacing:.03em;text-transform:uppercase;color:var(--text-subtle)}.meta-value{font-size:.85rem;color:var(--text);word-break:break-all}.meta-value.mono{font-family:ui-monospace,Cascadia Code,monospace;font-size:.8rem}.send-card h2{margin-bottom:14px}.subject-preview{margin:16px 0 18px;padding:12px 14px;background:var(--surface-muted);border:1px solid var(--border);border-radius:var(--radius-sm)}.subject-preview p{margin:6px 0 0;font-size:.82rem;line-height:1.5;color:var(--text-muted)}.btn{border:none;border-radius:var(--radius-sm);padding:12px 18px;font-size:.95rem;font-weight:600;cursor:pointer;transition:background .15s,transform .1s}.btn:active:not(:disabled){transform:scale(.98)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn.primary{background:var(--primary);color:#fff}.btn.primary:hover:not(:disabled){background:var(--primary-hover)}.send-btn{width:100%}.status{margin:14px 0 0;padding:11px 13px;border-radius:var(--radius-sm);font-size:.88rem;line-height:1.4}.status.success{background:var(--success-bg);color:var(--success-text);border:1px solid #a7f3d0}.status.error{background:var(--error-bg);color:var(--error-text);border:1px solid #fecaca}.preview-area{min-width:0}.preview-header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:14px;padding:0 4px}.preview-header h2{margin:0;font-size:.95rem;font-weight:600}.preview-note{font-size:.82rem;color:var(--text-subtle)}.preview-frame{overflow:auto;border-radius:var(--radius);border:1px solid var(--border);background:#eaeced;box-shadow:var(--shadow-md);max-height:calc(100vh - 140px)}@media(max-width:900px){.app{padding:20px 16px 32px}.header-subtitle{margin-left:0;margin-top:12px}.layout{grid-template-columns:1fr;gap:24px}.sidebar{position:static}.preview-frame{max-height:65vh}}@media(max-width:480px){.meta-row{grid-template-columns:1fr}.brand{align-items:flex-start}}.gate-overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;padding:24px;background:#11182773;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:9999}.gate-modal{width:100%;max-width:360px;padding:32px 28px 28px;background:#fff;border:1px solid #e5e7eb;border-radius:16px;box-shadow:0 20px 60px #00000026;text-align:center}.gate-mark{width:40px;height:40px;margin:0 auto 16px;border-radius:10px;background:#f0b429;box-shadow:inset 0 -2px #00000014}.gate-modal h1{margin:0 0 6px;font-size:1.25rem;font-weight:700;color:#111827}.gate-subtitle{margin:0 0 24px;font-size:.9rem;color:#6b7280}.gate-field input{width:100%;padding:12px 14px;border:1px solid #d1d5db;border-radius:10px;font-size:.95rem;color:#111827;background:#fff;transition:border-color .15s,box-shadow .15s}.gate-field input:focus{outline:none;border-color:#111827;box-shadow:0 0 0 3px #11111114}.gate-error{margin:12px 0 0;font-size:.85rem;color:#b91c1c}.gate-btn{width:100%;margin-top:16px;padding:12px 16px;border:none;border-radius:10px;background:#111827;color:#fff;font-size:.95rem;font-weight:600;cursor:pointer;transition:background .15s}.gate-btn:hover:not(:disabled){background:#1f2937}.gate-btn:disabled{opacity:.55;cursor:not-allowed}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}*,*:before,*:after{box-sizing:border-box}:root{--bg: #f3f4f6;--surface: #ffffff;--surface-muted: #f9fafb;--border: #e5e7eb;--border-strong: #d1d5db;--text: #111827;--text-muted: #6b7280;--text-subtle: #9ca3af;--accent: #f0b429;--accent-dark: #111111;--primary: #111827;--primary-hover: #1f2937;--success-bg: #ecfdf5;--success-text: #047857;--error-bg: #fef2f2;--error-text: #b91c1c;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 24px rgba(0, 0, 0, .06);--radius: 14px;--radius-sm: 10px}body{margin:0;font-family:Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}#root{min-height:100vh}