.copy-button{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);min-height:var(--min-touch-target);min-width:var(--min-touch-target);padding:var(--space-sm) var(--space-md);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-primary);background-color:var(--color-bg-warm);border:2px solid var(--color-primary);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.copy-button:hover{background-color:var(--color-primary);color:#fff}.copy-button:active{transform:scale(.98)}.copy-button--copied{background-color:var(--color-success);border-color:var(--color-success);color:#fff}.copy-button--copied:hover{background-color:var(--color-success);border-color:var(--color-success)}.copy-button__icon{font-size:var(--font-size-base)}.spinner-overlay{position:fixed;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center;background-color:#fdf8f3cc;z-index:var(--z-spinner)}.spinner{width:48px;height:48px;border:4px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.toast-container{position:fixed;bottom:var(--space-md);left:50%;transform:translate(-50%);z-index:var(--z-toast);pointer-events:none;width:calc(100% - var(--space-xl));max-width:400px}.toast{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);background-color:var(--color-error);color:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);pointer-events:auto;animation:slideUp .3s ease-out}.toast-error{background-color:var(--color-error)}.toast-success{background-color:var(--color-success)}.toast-icon{flex-shrink:0;font-size:var(--font-size-lg)}.toast-message{flex:1;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium)}.toast-close{flex-shrink:0;padding:var(--space-xs);color:#fff;opacity:.8;transition:opacity var(--transition-fast);cursor:pointer;background:none;border:none;font-size:var(--font-size-lg);line-height:1}.toast-close:hover{opacity:1}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media(min-width:640px){.toast-container{left:auto;right:var(--space-lg);bottom:var(--space-lg);transform:none}}.create-message{min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:var(--space-xl) var(--space-md);background:linear-gradient(135deg,var(--color-bg) 0%,var(--color-bg-warm) 100%)}.create-message__header{text-align:center;margin-bottom:var(--space-xl)}.create-message__logo{font-size:var(--font-size-2xl);margin-bottom:var(--space-sm)}.create-message__title{color:var(--color-primary);margin-bottom:var(--space-sm)}.create-message__subtitle{color:var(--color-text-light);font-size:var(--font-size-base);font-weight:var(--font-weight-normal)}.create-message__card{width:100%;max-width:var(--max-width-content)}.create-message__textarea-wrapper{position:relative}.create-message__textarea{min-height:140px}.create-message__char-count{position:absolute;bottom:var(--space-sm);right:var(--space-sm);font-size:var(--font-size-xs);color:var(--color-text-muted)}.create-message__char-count--warning{color:var(--color-warning)}.create-message__char-count--limit{color:var(--color-error)}.create-message__actions{display:flex;flex-direction:column;gap:var(--space-md)}.create-message__submit{width:100%}.create-message__success{margin-top:var(--space-lg);padding:var(--space-md);background-color:var(--color-success-light);border-radius:var(--radius-md);text-align:center}.create-message__success-title{color:var(--color-success);font-size:var(--font-size-lg);margin-bottom:var(--space-sm)}.create-message__success-note{font-size:var(--font-size-sm);color:var(--color-text-light);margin-bottom:var(--space-md)}.create-message__link-container{display:flex;flex-direction:column;gap:var(--space-md);align-items:center}.create-message__link{width:100%;padding:var(--space-sm) var(--space-xs);background-color:var(--color-bg-card);border:2px dashed var(--color-border);border-radius:var(--radius-md);font-family:monospace;font-size:.8125rem;white-space:nowrap;overflow-x:auto;-webkit-user-select:all;user-select:all;cursor:text;color:var(--color-text)}.create-message__new-button{margin-top:var(--space-md)}.create-message__footer{margin-top:var(--space-xl);padding:0 var(--space-md);text-align:center;font-size:var(--font-size-sm);color:var(--color-text-muted);font-style:italic;max-width:var(--max-width-content)}.create-message__footer-link{color:inherit;text-decoration:underline;text-decoration-style:dotted}.create-message__footer-link:hover{text-decoration-style:solid}@media(min-width:640px){.create-message{padding:var(--space-2xl);justify-content:center}.create-message__actions{flex-direction:row;align-items:flex-end}.create-message__submit{width:auto;flex-shrink:0}.create-message__link{font-size:var(--font-size-sm);padding:var(--space-md);text-align:center}}.view-message{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-xl) var(--space-md);background:linear-gradient(135deg,var(--color-bg) 0%,var(--color-bg-warm) 100%)}.view-message__header{text-align:center;margin-bottom:var(--space-xl)}.view-message__logo{font-size:var(--font-size-2xl);margin-bottom:var(--space-sm)}.view-message__title{color:var(--color-primary);margin-bottom:var(--space-sm)}.view-message__card{width:100%;max-width:var(--max-width-content);text-align:center}.view-message__content{padding:var(--space-lg);background-color:var(--color-bg-warm);border-radius:var(--radius-md);margin-bottom:var(--space-lg)}.view-message__label{font-size:var(--font-size-sm);color:var(--color-text-muted);margin-bottom:var(--space-sm);text-transform:uppercase;letter-spacing:.05em}.view-message__text{font-size:var(--font-size-lg);font-weight:var(--font-weight-medium);color:var(--color-text);word-break:break-word;white-space:pre-wrap;margin:0;padding:var(--space-md);background-color:var(--color-bg-card);border:2px dashed var(--color-border);border-radius:var(--radius-md);-webkit-user-select:all;user-select:all}.view-message__actions{display:flex;flex-direction:column;gap:var(--space-md);align-items:center}.view-message__warning{font-size:var(--font-size-sm);color:var(--color-text-light);margin-top:var(--space-md);padding:var(--space-sm) var(--space-md);background-color:var(--color-bg-warm);border-radius:var(--radius-sm)}.view-message__unavailable{text-align:center}.view-message__unavailable-icon{font-size:3rem;margin-bottom:var(--space-md)}.view-message__unavailable-title{color:var(--color-text);margin-bottom:var(--space-sm)}.view-message__unavailable-text{color:var(--color-text-light);margin-bottom:var(--space-lg)}.view-message__home-link{display:inline-flex;align-items:center;gap:var(--space-sm);color:var(--color-primary);font-weight:var(--font-weight-medium)}.view-message__home-link:hover{text-decoration:underline}@media(min-width:640px){.view-message{padding:var(--space-2xl)}.view-message__actions{flex-direction:row;justify-content:center}}:root{--color-primary: #e07b39;--color-primary-hover: #c96a2f;--color-primary-light: #f5a66a;--color-secondary: #4a9b8c;--color-secondary-hover: #3d8274;--color-bg: #fdf8f3;--color-bg-warm: #fff5eb;--color-bg-card: #ffffff;--color-text: #3d3d3d;--color-text-light: #6b6b6b;--color-text-muted: #999999;--color-success: #4caf50;--color-success-light: #e8f5e9;--color-error: #e53935;--color-error-light: #ffebee;--color-warning: #ff9800;--color-border: #e0d5cc;--color-border-focus: #e07b39;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-full: 9999px;--font-family: "Segoe UI", system-ui, -apple-system, sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.5rem;--font-size-2xl: 2rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-bold: 600;--line-height: 1.6;--transition-fast: .15s ease;--transition-normal: .25s ease;--max-width-content: 480px;--min-touch-target: 44px;--z-dropdown: 100;--z-spinner: 200;--z-toast: 300}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:var(--line-height);color:var(--color-text);background-color:var(--color-bg);min-height:100vh}#root{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{font-weight:var(--font-weight-bold);line-height:1.3;color:var(--color-text)}h1{font-size:var(--font-size-2xl)}h2{font-size:var(--font-size-xl)}p{margin-bottom:var(--space-md)}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-hover)}input,textarea,select,button{font-family:inherit;font-size:inherit}textarea{resize:vertical}button{cursor:pointer;border:none;background:none}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.container{width:100%;max-width:var(--max-width-content);margin:0 auto;padding:var(--space-md)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);min-height:var(--min-touch-target);padding:var(--space-sm) var(--space-lg);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);border-radius:var(--radius-md);transition:all var(--transition-fast)}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background-color:var(--color-secondary);color:#fff}.btn-secondary:hover:not(:disabled){background-color:var(--color-secondary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.card{background-color:var(--color-bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:var(--space-xl)}.form-field{margin-bottom:var(--space-lg)}.form-label{display:block;margin-bottom:var(--space-sm);font-weight:var(--font-weight-medium);color:var(--color-text)}.form-input,.form-textarea,.form-select{width:100%;padding:var(--space-sm) var(--space-md);min-height:var(--min-touch-target);font-size:var(--font-size-base);color:var(--color-text);background-color:var(--color-bg-card);border:2px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.form-input:focus,.form-textarea:focus,.form-select:focus{outline:none;border-color:var(--color-border-focus);box-shadow:0 0 0 3px #e07b3926}.form-textarea{min-height:120px;line-height:var(--line-height)}@media(min-width:640px){.container{padding:var(--space-xl)}.card{padding:var(--space-2xl)}}