:root{color-scheme:dark;--color-primary: #33a1fd;--color-primary-dark: #7c3aed;--color-primary-light: #5fb6ff;--color-background: #0c121b;--color-surface: #1a2433;--color-surface-alt: #060a0f;--color-text: #e6e6e6;--color-text-muted: #94a1b2;--color-border: rgba(255, 255, 255, .1);--color-error: #f87171;--color-success: #4ade80;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--font-heading: "Poppins", "Inter", system-ui, sans-serif;--font-mono: "Courier New", monospace;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 6px 16px rgba(0, 0, 0, .35);--shadow-lg: 0 12px 28px rgba(0, 0, 0, .4);--shadow-glow: 0 0 14px rgba(51, 161, 253, .45);--shadow-glow-hover: 0 0 18px rgba(124, 58, 237, .5);--space-1: 4px;--space-2: 8px;--space-3: 16px;--space-4: 24px;--space-5: 32px}.light{color-scheme:light;--color-primary: #007aff;--color-primary-dark: #6b46c1;--color-primary-light: #3395ff;--color-background: #f5f5f5;--color-surface: #ffffff;--color-surface-alt: #e9e9e9;--color-text: #0c121b;--color-text-muted: #5a6472;--color-border: rgba(0, 0, 0, .1);--color-error: #dc2626;--color-success: #16a34a;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 6px 16px rgba(0, 0, 0, .08);--shadow-lg: 0 12px 28px rgba(0, 0, 0, .1);--shadow-glow: 0 0 14px rgba(0, 122, 255, .25);--shadow-glow-hover: 0 0 18px rgba(107, 70, 193, .3)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);color:var(--color-text);background-color:var(--color-background);line-height:1.6;-webkit-font-smoothing:antialiased;transition:background-color .2s ease,color .2s ease}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:600;line-height:1.25}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-primary-dark)}img{max-width:100%;height:auto}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:.6em 1.3em;border-radius:var(--radius-lg);border:1px solid transparent;font-family:var(--font-sans);font-size:.95rem;font-weight:600;cursor:pointer;transition:background-color .2s ease,box-shadow .2s ease,opacity .2s ease,transform .15s ease}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background-color:var(--color-primary);color:#fff;box-shadow:var(--shadow-glow)}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-dark);box-shadow:var(--shadow-glow-hover);transform:translateY(-1px)}.btn-secondary{background-color:transparent;border-color:var(--color-border);color:var(--color-text)}.btn-secondary:hover:not(:disabled){background-color:var(--color-surface);border-color:var(--color-primary)}.btn-danger{background-color:var(--color-error);color:#fff}.btn-sm{padding:.4em .9em;font-size:.85rem}.card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-4);box-shadow:var(--shadow-sm)}.form-group{display:flex;flex-direction:column;gap:var(--space-1);margin-bottom:var(--space-3)}.form-label{font-size:.85rem;font-weight:600;color:var(--color-text-muted)}.input{padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);border:1px solid var(--color-border);font-size:1rem;font-family:inherit;background-color:var(--color-surface-alt);color:var(--color-text)}.input::placeholder{color:var(--color-text-muted)}.input:focus{outline:2px solid var(--color-primary);outline-offset:1px}.input-error{border-color:var(--color-error)}.form-error{color:var(--color-error);font-size:.85rem;margin:0 0 var(--space-2)}.brand-gradient{background:linear-gradient(90deg,var(--color-primary),var(--color-primary-dark));-webkit-background-clip:text;background-clip:text;color:transparent}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:2.25rem;height:2.25rem;border-radius:999px;border:none;background-color:var(--color-primary);color:#fff;font-size:1rem;cursor:pointer;box-shadow:var(--shadow-glow);transition:background-color .2s ease,box-shadow .2s ease}.theme-toggle:hover{background-color:var(--color-primary-dark);box-shadow:var(--shadow-glow-hover)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background-color:var(--color-background);padding:var(--space-3);position:relative}.login-page__theme-toggle{position:absolute;top:var(--space-4);right:var(--space-4)}.login-card{width:100%;max-width:360px}.login-card h1{margin-bottom:var(--space-4);font-size:1.6rem}.app-shell{min-height:100vh;display:flex;flex-direction:column;background-color:var(--color-background)}.app-shell__topbar{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border);background-color:var(--color-background)}.app-shell__brand{font-family:var(--font-heading);font-weight:700;font-size:1.15rem}.app-shell__user{display:flex;align-items:center;gap:var(--space-3)}.app-shell__user>span{color:var(--color-text-muted);font-size:.9rem}.app-shell__nav{display:flex;gap:var(--space-2);padding:var(--space-2) var(--space-4);border-bottom:1px solid var(--color-border);overflow-x:auto}.app-shell__nav-link{padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);color:var(--color-text-muted);white-space:nowrap;font-weight:500;transition:color .15s ease,background-color .15s ease}.app-shell__nav-link:hover{color:var(--color-text);text-decoration:none}.app-shell__nav-link.is-active{background-color:color-mix(in srgb,var(--color-primary) 15%,transparent);color:var(--color-primary);font-weight:600}.app-shell__content{flex:1;padding:var(--space-4);max-width:1100px;width:100%;margin:0 auto;box-sizing:border-box}@media (max-width: 640px){.app-shell__user>span{display:none}.app-shell__nav{position:fixed;bottom:0;left:0;right:0;justify-content:space-around;padding:var(--space-2);background-color:var(--color-background);border-top:1px solid var(--color-border);border-bottom:none;z-index:10}.app-shell__content{padding-bottom:calc(var(--space-5) * 2)}}.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:var(--space-3);margin-top:var(--space-4)}.tool-card-link{color:inherit;text-decoration:none;display:block;height:100%}.tool-card{display:flex;flex-direction:column;gap:var(--space-1);height:100%;box-sizing:border-box;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}.tool-card p{color:var(--color-text-muted)}.tool-card-link:hover .tool-card{border-color:var(--color-primary);box-shadow:var(--shadow-glow);transform:translateY(-2px)}.tool-card--disabled{opacity:.55}.tool-card__icon{font-size:1.75rem}.tool-card__badge{align-self:flex-start;font-size:.72rem;font-weight:600;letter-spacing:.02em;color:var(--color-text-muted);background-color:var(--color-surface-alt);border:1px solid var(--color-border);padding:3px var(--space-2);border-radius:999px}.page-subtitle{color:var(--color-text-muted);margin:var(--space-1) 0 var(--space-4);max-width:60ch}.admin-form-card{max-width:420px;margin-bottom:var(--space-5)}.admin-users-list-header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--space-3);margin-bottom:var(--space-3)}.admin-users-list-header h2{margin:0}.admin-search-input{max-width:280px;width:100%}.admin-empty-state{color:var(--color-text-muted)}.user-card-list,.user-card{display:flex;flex-direction:column;gap:var(--space-3)}.user-card__header{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:var(--space-3);padding-bottom:var(--space-3);border-bottom:1px solid var(--color-border)}.user-card__identity{display:flex;flex-direction:column;gap:2px}.user-card__name{font-weight:600;font-size:1.05rem}.user-card__email{color:var(--color-text-muted);font-size:.85rem}.user-card__meta{display:flex;align-items:center;gap:var(--space-3)}.role-badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:.72rem;font-weight:700;letter-spacing:.03em;border:1px solid transparent;white-space:nowrap}.role-badge--admin{background-color:color-mix(in srgb,var(--color-primary) 18%,transparent);color:var(--color-primary);border-color:color-mix(in srgb,var(--color-primary) 40%,transparent)}.role-badge--user{background-color:var(--color-surface-alt);color:var(--color-text-muted);border-color:var(--color-border)}.user-card__tools-label{display:block;font-size:.78rem;font-weight:600;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:var(--space-2)}.user-card__admin-note{color:var(--color-text-muted);font-size:.9rem;margin:0}.tool-chip-list{display:flex;flex-wrap:wrap;gap:var(--space-2)}.tool-chip{display:inline-flex;align-items:center;gap:6px;padding:.4em .85em;border-radius:999px;border:1px solid var(--color-border);background-color:var(--color-surface-alt);color:var(--color-text-muted);font-family:inherit;font-size:.85rem;font-weight:500;cursor:pointer;transition:border-color .15s ease,color .15s ease,background-color .15s ease}.tool-chip:hover{border-color:var(--color-primary);color:var(--color-text)}.tool-chip.is-active{background-color:color-mix(in srgb,var(--color-primary) 16%,transparent);border-color:var(--color-primary);color:var(--color-primary);font-weight:600}.switch{display:inline-flex;align-items:center;gap:var(--space-2);cursor:pointer}.switch input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.switch__track{position:relative;flex-shrink:0;width:2.25rem;height:1.25rem;background-color:var(--color-surface-alt);border:1px solid var(--color-border);border-radius:999px;transition:background-color .2s ease,border-color .2s ease}.switch__thumb{position:absolute;top:1px;left:1px;width:1rem;height:1rem;border-radius:50%;background-color:var(--color-text-muted);transition:transform .2s ease,background-color .2s ease}.switch input:checked+.switch__track{background-color:var(--color-primary);border-color:var(--color-primary)}.switch input:checked+.switch__track .switch__thumb{transform:translate(1rem);background-color:#fff}.switch input:disabled+.switch__track{opacity:.5}.switch:has(input:disabled){cursor:not-allowed}.switch__label{min-width:3.5rem;font-size:.85rem;color:var(--color-text-muted)}.page-loading{min-height:100vh;display:flex;align-items:center;justify-content:center;color:var(--color-text-muted);background-color:var(--color-background)}