:root{--primary: #0284c7;--primary-hover: #0369a1;--success: #16a34a;--success-hover: #15803d;--danger: #ef4444;--danger-hover: #dc2626;--surface: #ffffff;--background: #f1f5f9;--text-main: #0f172a;--text-muted: #64748b;--border: #e2e8f0}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,sans-serif;background-color:var(--background);color:var(--text-main);line-height:1.5}.hidden{display:none!important}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;font-weight:600;cursor:pointer;border:none;border-radius:.375rem;transition:background .2s,transform .1s;width:100%;font-size:1rem}.btn:active{transform:scale(.98)}.btn--primary{background:var(--primary);color:#fff}.btn--primary:hover{background:var(--primary-hover)}.btn--success{background:var(--success);color:#fff}.btn--success:hover{background:var(--success-hover)}.btn--danger{background:var(--danger);color:#fff}.btn--danger:hover{background:var(--danger-hover)}.btn--outline{background:transparent;border:2px solid var(--border);color:var(--text-muted)}.btn--outline:hover{background:var(--border);color:var(--text-main)}.btn--large{padding:1.25rem;font-size:1.25rem;font-weight:700;height:4rem}.btn--sm{padding:.5rem 1rem;width:auto;font-size:.875rem}.mt-4{margin-top:1rem}.page-login{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:1rem}.login-card{background:var(--surface);padding:2.5rem 2rem;border-radius:1rem;width:100%;max-width:400px;box-shadow:0 10px 25px -5px #0000001a;text-align:center}.login-card__title{font-size:1.5rem;font-weight:800;color:var(--text-main);margin-bottom:.25rem;letter-spacing:-.5px}.login-card__subtitle{font-size:.875rem;color:var(--text-muted);margin-bottom:2rem}.login-form__group{display:flex;flex-direction:column;text-align:left;margin-bottom:1.5rem}.login-form__group label{font-size:.875rem;font-weight:600;margin-bottom:.5rem;color:var(--text-main)}.login-form__input{padding:.875rem;border:1px solid var(--border);border-radius:.5rem;font-size:1rem;outline:none;transition:border-color .2s,box-shadow .2s;background-color:var(--background)}.login-form__input:focus{border-color:var(--primary);box-shadow:0 0 0 4px #0284c71a}.icon-brand{font-size:3.5rem;margin-bottom:1rem;color:var(--primary)}.page-dashboard{display:flex;flex-direction:column;min-height:100vh}.header{background:var(--surface);padding:1.25rem 1.5rem;display:flex;justify-content:space-between;align-items:center;box-shadow:0 1px 2px #0000000d}.header__brand{font-size:1.25rem;font-weight:800;color:var(--primary);letter-spacing:-.5px}.header__actions{display:flex;align-items:center;gap:1rem}.online-indicator{display:flex;align-items:center;font-size:.75rem;color:var(--success);font-weight:700;text-transform:uppercase;letter-spacing:.5px}.online-indicator:before{content:"";display:block;width:8px;height:8px;background:var(--success);border-radius:50%;margin-right:6px;box-shadow:0 0 8px var(--success)}.pdv-container{padding:1.5rem;flex:1;display:flex;flex-direction:column;justify-content:center}.pdv-panel{background:var(--surface);border-radius:1rem;padding:2rem;box-shadow:0 10px 25px -5px #0000000d;text-align:center}.pdv-panel__display{background:var(--background);border-radius:.75rem;padding:1.5rem;margin-bottom:1.5rem;display:flex;align-items:center;justify-content:center;border:1px solid var(--border)}.pdv-panel__currency{font-size:2rem;font-weight:500;color:var(--text-muted);margin-right:.5rem}.pdv-panel__input{background:transparent;border:none;font-size:3.5rem;font-weight:800;color:var(--text-main);width:100%;max-width:200px;outline:none;text-align:center;letter-spacing:-1px}.pdv-panel__input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.dashboard-tabs{display:flex;gap:.5rem;margin-bottom:2rem;background:var(--surface);padding:.5rem;border-radius:.75rem;box-shadow:0 1px 3px #0000000d}.tab-btn{flex:1;padding:.75rem 1rem;border:none;background:transparent;color:var(--text-muted);font-weight:600;border-radius:.5rem;cursor:pointer;transition:all .2s;font-size:.875rem}.tab-btn:hover{background:var(--background);color:var(--text-main)}.tab-btn.active{background:var(--primary);color:#fff;box-shadow:0 2px 5px #0284c74d}.admin-panel{background:var(--surface);border-radius:1rem;padding:2rem;box-shadow:0 10px 25px -5px #0000000d;text-align:left}.admin-form-group label{display:block;font-size:.875rem;font-weight:600;color:var(--text-muted);margin-bottom:.5rem}.view-section{display:none}.view-section.active{display:block}.modal{position:fixed;inset:0;z-index:50;display:flex;align-items:flex-end;justify-content:center;padding:1rem}.modal__overlay{position:absolute;inset:0;background:#0f172a66;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:opacity .3s}.modal__content{background:var(--surface);padding:2.5rem 1.5rem;border-radius:1.5rem;width:100%;max-width:380px;text-align:center;position:relative;z-index:51;box-shadow:0 25px 50px -12px #00000040;animation:slideUp .3s cubic-bezier(.16,1,.3,1);margin-bottom:2rem}.modal__title{font-size:1.5rem;font-weight:800;margin-bottom:.5rem;letter-spacing:-.5px}.modal__status{font-size:1rem;color:var(--text-main);margin-bottom:.25rem;font-weight:600}.modal__substatus{font-size:.875rem;color:var(--text-muted);line-height:1.4}.modal__icon{font-size:4.5rem;margin-bottom:1.5rem;filter:drop-shadow(0 4px 6px rgba(2,132,199,.2))}.nfc-pulse{display:inline-block;animation:pulse 2s infinite}@keyframes slideUp{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes pulse{0%{transform:scale(1);opacity:1}50%{transform:scale(1.1);opacity:.8}to{transform:scale(1);opacity:1}}@media(min-width:768px){.pdv-container{align-items:center}.pdv-panel,.admin-panel,.dashboard-tabs{max-width:500px;width:100%}.modal{align-items:center}.modal__content{margin-bottom:0;border-radius:1rem}}