@import "https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800;900&display=swap";
:root{--btc-orange:#f7931a;--btc-orange-hover:#e8850f;--btc-orange-light:#fff4e6;--btc-orange-glow:#f7931a40;--btc-orange-subtle:#f7931a14;--ink:#1a1a2e;--ink-secondary:#6b7280;--ink-tertiary:#9ca3af;--ink-muted:#d1d5db;--surface-white:#fff;--surface-50:#f9fafb;--surface-100:#f3f4f6;--surface-200:#e5e7eb;--surface-border:#e5e7eb;--surface-border-light:#f3f4f6;--success:#10b981;--success-bg:#ecfdf5;--warning:#f59e0b;--warning-bg:#fffbeb;--danger:#ef4444;--danger-bg:#fef2f2;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 6px -1px #00000012, 0 2px 4px -2px #0000000d;--shadow-lg:0 10px 15px -3px #00000014, 0 4px 6px -4px #0000000a;--shadow-xl:0 20px 25px -5px #0000001a, 0 8px 10px -6px #0000000f;--shadow-glow:0 0 20px #f7931a26;--radius-sm:.5rem;--radius-md:.75rem;--radius-lg:1rem;--radius-xl:1.25rem;--radius-2xl:1.5rem;--radius-full:9999px;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-normal:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.35s cubic-bezier(.4, 0, .2, 1);--font-sans:"Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;height:100%}body{background:var(--surface-white);height:100dvh;font-family:var(--font-sans);color:var(--ink);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;flex-direction:column;line-height:1.5;display:flex;overflow:hidden}.app-shell{flex-direction:column;height:100dvh;display:flex;overflow:hidden}.app-header{z-index:50;border-bottom:1px solid var(--surface-border-light);-webkit-backdrop-filter:blur(12px);background:#ffffffd9;justify-content:space-between;align-items:center;padding:.75rem 1rem;display:flex;position:sticky;top:0}.app-logo{background:linear-gradient(135deg, var(--btc-orange), #e8850f);border-radius:var(--radius-md);color:#fff;width:2.25rem;height:2.25rem;box-shadow:var(--shadow-sm);flex-shrink:0;justify-content:center;align-items:center;font-size:1.1rem;font-weight:900;display:flex}.secure-badge{border-radius:var(--radius-full);border:1px solid var(--surface-200);background:var(--surface-50);color:var(--ink-secondary);align-items:center;gap:.375rem;padding:.375rem .75rem;font-size:.75rem;font-weight:700;display:flex}.secure-badge svg{flex-shrink:0;width:.875rem;height:.875rem}.profile-section{z-index:10;text-align:center;flex-shrink:0;padding:1rem 1rem .75rem;position:relative}.profile-avatar{border-radius:var(--radius-full);background:linear-gradient(135deg, var(--btc-orange), #e8850f);color:#fff;width:3rem;height:3rem;box-shadow:var(--shadow-md), 0 0 0 3px #f7931a1a;justify-content:center;align-items:center;margin:0 auto;font-size:1.15rem;font-weight:900;animation:3s ease-in-out infinite avatarPulse;display:flex}@keyframes avatarPulse{0%,to{box-shadow:var(--shadow-md), 0 0 0 3px #f7931a1a}50%{box-shadow:var(--shadow-md), 0 0 0 6px #f7931a14}}.profile-tag{letter-spacing:-.025em;color:var(--ink);margin-top:.5rem;font-size:1.125rem;font-weight:800}.profile-notice{max-width:20rem;color:var(--ink-secondary);margin-top:.375rem;margin-left:auto;margin-right:auto;font-size:.6875rem;font-weight:500;line-height:1.4}.profile-notice strong{opacity:.95;margin-top:.125rem;font-weight:700;display:block}.main-content{z-index:10;flex-direction:column;flex:1;min-height:0;display:flex;position:relative;overflow:hidden}.scroll-area{overscroll-behavior-y:contain;scrollbar-width:thin;scrollbar-color:var(--surface-200) transparent;flex:1;min-height:0;padding:0 .75rem;overflow-y:auto}.scroll-area::-webkit-scrollbar{width:4px}.scroll-area::-webkit-scrollbar-track{background:0 0}.scroll-area::-webkit-scrollbar-thumb{background:var(--surface-200);border-radius:var(--radius-full)}.content-container{width:100%;max-width:28rem;margin:0 auto;padding-bottom:1rem}.card{border-radius:var(--radius-2xl);border:1px solid var(--surface-border-light);background:var(--surface-white);box-shadow:var(--shadow-md);overflow:hidden}.card-body{padding:1rem 1rem .5rem}.card-footer{border-top:1px solid var(--surface-border-light);padding:1.25rem 1rem}.step-indicator{border-radius:var(--radius-full);background:var(--surface-50);border:1px solid #e5e7ebcc;margin-bottom:1.25rem;padding:.125rem;display:flex;box-shadow:inset 0 1px 2px #0000000f}.step{border-radius:var(--radius-full);min-height:2.5rem;transition:var(--transition-normal);flex:1;justify-content:center;align-items:center;gap:.375rem;padding:.375rem .5rem;display:flex}.step.active{background:var(--surface-white);color:var(--ink);box-shadow:var(--shadow-sm), 0 0 0 1px #00000008}.step.inactive{color:var(--ink-tertiary)}.step.completed{color:var(--success)}.step-number{border-radius:var(--radius-full);flex-shrink:0;justify-content:center;align-items:center;width:1.25rem;height:1.25rem;font-size:.625rem;font-weight:900;line-height:1;display:flex}.step.active .step-number{background:var(--btc-orange);color:#fff}.step.inactive .step-number{border:1.5px solid var(--surface-200);background:var(--surface-white);color:var(--ink-muted)}.step.completed .step-number{background:var(--success);color:#fff}.step-label{letter-spacing:-.01em;white-space:nowrap;font-size:.6875rem;font-weight:800}.instant-badge{border-radius:var(--radius-2xl);border:1px solid var(--surface-200);background:linear-gradient(135deg, var(--btc-orange-light), white);text-align:center;width:100%;box-shadow:var(--shadow-sm);flex-direction:column;justify-content:center;align-items:center;padding:1.75rem 1.25rem;display:flex}.instant-badge-icon{border-radius:var(--radius-lg);background:linear-gradient(135deg, var(--btc-orange), #e8850f);color:#fff;width:3.5rem;height:3.5rem;box-shadow:var(--shadow-md);justify-content:center;align-items:center;font-size:1.5rem;font-weight:900;display:flex}.instant-badge-text{letter-spacing:-.025em;color:var(--ink);margin-top:.75rem;font-size:1.125rem;font-weight:800}.form-group{margin-top:1rem}.form-label{text-transform:uppercase;letter-spacing:.05em;color:var(--ink-secondary);font-size:.6875rem;font-weight:800;display:block}.amount-input-wrapper{margin-top:.5rem;position:relative}.amount-prefix{color:var(--btc-orange);pointer-events:none;align-items:center;padding-left:1rem;font-size:1.25rem;font-weight:900;display:flex;position:absolute;inset:0 auto 0 0}.amount-input{border-radius:var(--radius-2xl);border:2px solid 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var(--btc-orange-glow)}.amount-input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.amount-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.amount-hint{color:var(--ink-secondary);margin-top:.5rem;font-size:.75rem;font-weight:600}.amount-error{color:var(--danger);margin-top:.5rem;font-size:.75rem;font-weight:600}.quick-amounts-section{margin-top:1rem}.quick-amounts-label{text-align:left;color:var(--ink-secondary);font-size:.6875rem;font-weight:700}.quick-amounts-grid{flex-wrap:wrap;gap:.5rem;margin-top:.5rem;display:flex}.quick-amount-btn{touch-action:manipulation;border-radius:var(--radius-full);border:1px solid var(--surface-200);background:var(--surface-white);text-align:center;font-variant-numeric:tabular-nums;min-width:4.25rem;min-height:2.5rem;color:var(--ink);cursor:pointer;box-shadow:var(--shadow-sm);transition:var(--transition-fast);font-size:.9375rem;font-weight:900;font-family:var(--font-sans);padding:.5rem .875rem}.quick-amount-btn:hover{background:var(--btc-orange-subtle);border-color:#f7931a80}.quick-amount-btn:active{transform:scale(.97)}.quick-amount-btn.selected{border-color:var(--btc-orange);background:var(--btc-orange-light);color:var(--btc-orange-hover);box-shadow:0 0 0 2px var(--btc-orange-glow)}.toggle-more-btn{touch-action:manipulation;border-radius:var(--radius-full);width:100%;color:var(--btc-orange);text-underline-offset:2px;cursor:pointer;transition:var(--transition-fast);font-size:.75rem;font-weight:700;font-family:var(--font-sans);background:0 0;border:none;margin-top:.625rem;padding:.625rem;-webkit-text-decoration:underline #f7931a66;text-decoration:underline #f7931a66;text-decoration-thickness:1px}.toggle-more-btn:hover{-webkit-text-decoration-color:var(--btc-orange);text-decoration-color:var(--btc-orange);color:var(--btc-orange-hover)}.trust-badges{color:var(--ink-secondary);flex-wrap:wrap;justify-content:center;align-items:center;gap:1.25rem 1.5rem;font-size:.6875rem;font-weight:700;display:flex}.trust-badge{align-items:center;gap:.375rem;display:inline-flex}.trust-badge svg{width:1rem;height:1rem;color:var(--btc-orange);flex-shrink:0}.disclaimer{text-align:center;color:var(--ink-tertiary);margin-top:.625rem;font-size:.625rem;font-weight:400}.app-footer{z-index:20;border-top:1px solid var(--surface-border-light);-webkit-backdrop-filter:blur(12px);background:#ffffffe6;flex-shrink:0;padding:.75rem;position:relative}.footer-container{width:100%;max-width:28rem;margin:0 auto}.submit-btn{touch-action:manipulation;border-radius:var(--radius-full);background:var(--ink);color:#fff;cursor:pointer;width:100%;min-height:3.375rem;transition:var(--transition-fast);font-size:1.0625rem;font-weight:900;font-family:var(--font-sans);box-shadow:var(--shadow-lg);border:none;justify-content:center;align-items:center;gap:.5rem;display:flex}.submit-btn:hover{background:#2d2d44}.submit-btn:active{background:#0d0d1a;transform:scale(.98)}.submit-btn:disabled{cursor:not-allowed;opacity:.65}.submit-btn svg{flex-shrink:0;width:1.25rem;height:1.25rem}.submit-btn-orange{background:linear-gradient(135deg, var(--btc-orange), #e8850f)}.submit-btn-orange:hover{background:linear-gradient(135deg,#e8850f,#d4760a)}.submit-btn-orange:active{background:linear-gradient(135deg,#d4760a,#c06a08)}.qr-section{flex-direction:column;align-items:center;padding:1.5rem 1rem;display:flex}.qr-amount-display{color:var(--ink);letter-spacing:-.03em;margin-bottom:.25rem;font-size:2rem;font-weight:900}.qr-amount-label{color:var(--ink-secondary);margin-bottom:1.5rem;font-size:.8125rem;font-weight:600}.qr-wrapper{border-radius:var(--radius-xl);border:2px solid var(--surface-200);box-shadow:var(--shadow-lg), var(--shadow-glow);background:#fff;padding:1.25rem;animation:.6s cubic-bezier(.16,1,.3,1) qrFadeIn;position:relative}@keyframes qrFadeIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.qr-overlay-icon{border-radius:var(--radius-md);background:linear-gradient(135deg, var(--btc-orange), #e8850f);color:#fff;width:2.5rem;height:2.5rem;box-shadow:var(--shadow-md);justify-content:center;align-items:center;font-size:1.1rem;font-weight:900;display:flex;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.btc-address-section{width:100%;max-width:22rem;margin-top:1.5rem}.btc-address-label{color:var(--ink-secondary);text-transform:uppercase;letter-spacing:.05em;text-align:center;margin-bottom:.5rem;font-size:.6875rem;font-weight:700}.btc-address-box{border-radius:var(--radius-lg);background:var(--surface-50);border:1px solid var(--surface-200);align-items:center;gap:.5rem;padding:.75rem;display:flex}.btc-address-text{color:var(--ink);word-break:break-all;flex:1;font-family:Courier New,monospace;font-size:.75rem;font-weight:600;line-height:1.4}.copy-btn{border-radius:var(--radius-md);border:1px solid 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var(--surface-200);background:var(--surface-50);width:100%;min-height:2.75rem;color:var(--ink);font-size:.8125rem;font-weight:500;font-family:var(--font-sans);transition:var(--transition-fast);resize:none;outline:none;padding:.625rem .875rem}.note-input::placeholder{color:var(--ink-tertiary)}.note-input:focus{border-color:var(--btc-orange);box-shadow:0 0 0 3px var(--btc-orange-glow);background:#fff}.confirmation-section{text-align:center;flex-direction:column;align-items:center;padding:2rem 1rem;display:flex}.success-icon-wrapper{margin-bottom:1.5rem;animation:.8s cubic-bezier(.34,1.56,.64,1) successBounce;position:relative}@keyframes successBounce{0%{opacity:0;transform:scale(0)}50%{transform:scale(1.15)}to{opacity:1;transform:scale(1)}}.success-icon{border-radius:var(--radius-full);background:linear-gradient(135deg, var(--success), #059669);color:#fff;width:4.5rem;height:4.5rem;box-shadow:0 0 0 8px #10b9811a, var(--shadow-lg);justify-content:center;align-items:center;display:flex}.success-icon svg{stroke-width:3px;width:2.25rem;height:2.25rem}.success-ripple{border-radius:var(--radius-full);border:2px solid #10b98133;animation:2s ease-out infinite ripple;position:absolute;inset:-8px}@keyframes ripple{0%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(1.5)}}.confirmation-title{color:var(--ink);letter-spacing:-.03em;font-size:1.5rem;font-weight:900}.confirmation-subtitle{color:var(--ink-secondary);max-width:20rem;margin-top:.5rem;font-size:.875rem;font-weight:500}.invoice-summary{border-radius:var(--radius-xl);border:1px solid var(--surface-200);background:var(--surface-50);width:100%;max-width:22rem;margin-top:1.5rem;overflow:hidden}.invoice-row{justify-content:space-between;align-items:center;padding:.875rem 1rem;display:flex}.invoice-row+.invoice-row{border-top:1px solid 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slideUp}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.more-amounts{transition:max-height .3s ease-out,opacity .3s ease-out;overflow:hidden}.more-amounts.collapsed{opacity:0;max-height:0}.more-amounts.expanded{opacity:1;max-height:200px}.spinner{border:2.5px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:1.25rem;height:1.25rem;animation:.6s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.admin-login-page{background:linear-gradient(135deg,#0f0f1a 0%,#1a1a2e 50%,#16213e 100%);justify-content:center;align-items:center;min-height:100dvh;padding:1rem;display:flex}.admin-login-card{border-radius:var(--radius-2xl);-webkit-backdrop-filter:blur(20px);background:#ffffff0f;border:1px solid #ffffff1a;width:100%;max-width:24rem;padding:2.5rem 2rem;animation:.5s ease-out fadeIn;box-shadow:0 25px 50px #0000004d}.admin-login-logo{border-radius:var(--radius-lg);background:linear-gradient(135deg, 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