:root{--primary: #7c6b9e;--primary-hover: #6a5a8a;--primary-on: #ffffff;--background: #f4f2f8;--surface: #ffffff;--surface-elevated: #ffffff;--text-primary: #1a1625;--text-secondary: #5c5668;--text-muted: #8a8496;--error: #c45c4a;--error-soft: #fde8e6;--border: #e8e4ef;--border-subtle: #f0edf5;--input-bg: #faf9fc;--input-border: #dcd7e6;--nav-bg: #faf9fc;--nav-border: #e8e4ef;--nav-active: #7c6b9e;--brand-mint: #b8e6d5;--brand-lavender: #ebe4f7;--brand-peach: #fed7aa;--shadow-sm: 0 1px 2px rgba(26, 22, 37, .05);--shadow-md: 0 4px 16px rgba(26, 22, 37, .08);--shadow-lg: 0 20px 50px -12px rgba(26, 22, 37, .18);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--focus-ring: 0 0 0 3px rgba(124, 107, 158, .28)}*{box-sizing:border-box}body{margin:0;font-family:Plus Jakarta Sans,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--background);color:var(--text-primary);line-height:1.55;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer;background:var(--primary);color:var(--primary-on);border:none;border-radius:var(--radius-sm);padding:8px 16px;font-weight:600;transition:background .15s ease,transform .1s ease,box-shadow .15s ease}button:hover:not(:disabled){background:var(--primary-hover)}button:focus-visible{outline:none;box-shadow:var(--focus-ring)}button:disabled{background:#e8e5eb;color:#9e99a6;cursor:not-allowed}button.secondary{background:var(--surface);color:var(--text-primary);border:1px solid var(--border)}button.danger{background:var(--error);color:#fff}input,textarea,select{font:inherit;color:var(--text-primary);background:var(--input-bg);border:1px solid var(--input-border);border-radius:var(--radius-sm);padding:10px 14px;transition:border-color .15s ease,box-shadow .15s ease,background .15s ease}input:focus-visible,textarea:focus-visible,select:focus-visible{outline:none;border-color:var(--primary);box-shadow:var(--focus-ring);background:var(--surface)}input::placeholder,textarea::placeholder{color:var(--text-secondary)}label{color:var(--text-primary);font-weight:500}.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}.app-layout{display:flex;min-height:100vh;width:100%}.app-nav{position:fixed;left:0;top:0;bottom:0;width:228px;background:var(--nav-bg);border-right:1px solid var(--nav-border);padding:22px 14px;flex-shrink:0;overflow-y:auto;box-shadow:var(--shadow-sm)}.app-nav .brand{font-weight:700;font-size:1.125rem;color:var(--text-primary);margin-bottom:24px;padding:0 8px}.app-nav ul{list-style:none;padding:0;margin:0}.app-nav li{margin-bottom:4px}.app-nav a{display:block;padding:10px 12px;border-radius:8px;color:var(--text-secondary);font-weight:500}.app-nav a:hover{background:var(--brand-lavender);color:var(--text-primary);text-decoration:none}.app-nav a.active{background:var(--nav-active);color:var(--primary-on)}.nav-group{margin-bottom:4px}.nav-group-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;padding:10px 12px;border:none;border-radius:8px;background:transparent;color:var(--text-secondary);font-weight:500;font-size:inherit;font-family:inherit;cursor:pointer;text-align:left}.nav-group-toggle:hover{background:var(--brand-lavender);color:var(--text-primary)}.nav-group-toggle.active{background:var(--nav-active);color:var(--primary-on)}.nav-chevron{font-size:.7rem;opacity:.8}.nav-sub{list-style:none;margin:4px 0 4px 12px;border-left:1px solid var(--border);padding:0 0 0 8px}.nav-sub li{margin-bottom:2px}.nav-sub a{padding:6px 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var(--border);background:var(--surface);color:var(--text-primary);border-radius:8px}@media(max-width:768px){.app-nav-toggle{display:inline-flex}}