:root{--color-bg: #f5f6f8;--color-surface: #ffffff;--color-border: #e4e7ee;--color-border-strong: #c8cdd6;--color-text: #0e1626;--color-text-muted: #5a6478;--color-text-faint: #8a93a3;--color-primary: #0e1626;--color-primary-hover: #1c2740;--color-primary-active: #000814;--color-accent: #1f70f5;--color-accent-hover: #1856c4;--color-success: #16a34a;--color-success-bg: #ecfdf3;--color-error: #dc2626;--color-error-bg: #fef2f2;--color-warning: #b45309;--color-warning-bg: #fffbeb;--color-info-bg: #eff6ff;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--shadow-sm: 0 1px 2px rgba(14, 22, 38, .04), 0 1px 3px rgba(14, 22, 38, .06);--shadow-md: 0 4px 12px rgba(14, 22, 38, .06), 0 2px 4px rgba(14, 22, 38, .04);--shadow-lg: 0 24px 48px -12px rgba(14, 22, 38, .12);--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--space-7: 48px;--space-8: 64px;--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, "SF Mono", "Cascadia Mono", "Consolas", "Liberation Mono", Menlo, monospace;--transition: .16s cubic-bezier(.4, 0, .2, 1)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{font-family:var(--font-sans);font-size:16px;line-height:1.5;color:var(--color-text);background:var(--color-bg);min-height:100vh}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}button:focus-visible,a:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px;border-radius:var(--radius-sm)}a{color:var(--color-accent);text-decoration:none}a:hover{color:var(--color-accent-hover);text-decoration:underline}.app-shell{min-height:100vh;display:flex;flex-direction:column}.app-header{padding:var(--space-5) var(--space-5);display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--color-border);background:var(--color-surface)}.app-brand{display:inline-flex;align-items:center}.app-brand-logo{height:40px;width:auto;display:block}.app-main{flex:1;display:flex;align-items:flex-start;justify-content:center;padding:var(--space-7) var(--space-4)}.app-footer{padding:var(--space-5);text-align:center;font-size:13px;color:var(--color-text-muted);border-top:1px solid var(--color-border)}.card{width:100%;max-width:460px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:var(--space-7) var(--space-6) var(--space-6)}.card__eyebrow{font-size:13px;font-weight:600;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:var(--space-3)}.card__heading{font-size:22px;font-weight:700;letter-spacing:-.01em;color:var(--color-text);margin-bottom:var(--space-2)}.card__sub{font-size:15px;color:var(--color-text-muted);margin-bottom:var(--space-6)}.amount{font-family:var(--font-mono);font-size:44px;font-weight:600;font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.02em;color:var(--color-text);display:flex;align-items:baseline;gap:var(--space-2);margin-bottom:var(--space-2)}.amount__currency{font-size:24px;color:var(--color-text-muted);font-weight:500}.description{font-size:15px;color:var(--color-text);word-break:break-word;padding:var(--space-3) var(--space-4);background:var(--color-bg);border-radius:var(--radius-sm);border:1px solid var(--color-border);margin-bottom:var(--space-6)}.description__label{display:block;font-size:12px;font-weight:600;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:var(--space-1)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:14px var(--space-5);font-size:15px;font-weight:600;border-radius:var(--radius-md);transition:background var(--transition),color var(--transition),transform var(--transition);width:100%}.btn--primary{background:var(--color-primary);color:var(--color-surface)}.btn--primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn--primary:active:not(:disabled){background:var(--color-primary-active);transform:translateY(1px)}.btn--secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border-strong)}.btn--secondary:hover:not(:disabled){background:var(--color-bg)}.btn:disabled{opacity:.6;cursor:not-allowed}.status{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-radius:999px;font-size:13px;font-weight:600}.status--success{background:var(--color-success-bg);color:var(--color-success)}.status--error{background:var(--color-error-bg);color:var(--color-error)}.status--warning{background:var(--color-warning-bg);color:var(--color-warning)}.status--info{background:var(--color-info-bg);color:var(--color-accent)}.status-hero{display:flex;flex-direction:column;align-items:center;text-align:center;margin-bottom:var(--space-6)}.status-icon{width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-4);font-size:32px}.status-icon--success{background:var(--color-success-bg);color:var(--color-success)}.status-icon--error{background:var(--color-error-bg);color:var(--color-error)}.status-icon--warning{background:var(--color-warning-bg);color:var(--color-warning)}.status-icon--info{background:var(--color-info-bg);color:var(--color-accent)}.status-headline{font-size:24px;font-weight:700;letter-spacing:-.01em;margin-bottom:var(--space-2)}.status-detail{font-size:15px;color:var(--color-text-muted)}.message{padding:var(--space-4);border-radius:var(--radius-md);font-size:14px;margin-bottom:var(--space-5)}.message--error{background:var(--color-error-bg);color:var(--color-error);border:1px solid rgba(220,38,38,.2)}.message--info{background:var(--color-info-bg);color:var(--color-text);border:1px solid rgba(31,112,245,.2)}.spinner{width:18px;height:18px;border:2px solid currentColor;border-top-color:transparent;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.secure-note{margin-top:var(--space-5);padding-top:var(--space-4);border-top:1px solid var(--color-border);display:flex;align-items:center;justify-content:center;gap:var(--space-2);font-size:13px;color:var(--color-text-muted)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@media(max-width:480px){.app-main{padding:var(--space-4)}.card{padding:var(--space-5) var(--space-4)}.amount{font-size:36px}.amount__currency{font-size:20px}}