:root{--color-bg:#0f0f1a;--color-surface:#1a1a2e;--color-surface-hover:#242445;--color-border:#2a2a4a;--color-text:#e0e0f0;--color-text-muted:#88a;--color-primary:#6366f1;--color-primary-hover:#818cf8;--color-danger:#ef4444;--color-danger-hover:#f87171;--color-success:#22c55e;--color-warning:#f59e0b;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--radius:8px;--radius-lg:12px;--shadow:0 4px 12px #0000004d}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;line-height:1.5}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-primary-hover)}.btn-primary,.btn-secondary,.btn-danger{border-radius:var(--radius);cursor:pointer;border:none;align-items:center;gap:6px;padding:8px 16px;font-size:14px;font-weight:500;transition:background .15s,opacity .15s;display:inline-flex}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-surface-hover)}.btn-danger{color:var(--color-danger);border:1px solid var(--color-danger);background:0 0}.btn-danger:hover{background:var(--color-danger);color:#fff}button:disabled{opacity:.5;cursor:not-allowed}.loading-screen{background:var(--color-bg);justify-content:center;align-items:center;height:100vh;display:flex}.loading-spinner{border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;width:32px;height:32px;animation:.6s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{color:var(--color-text-muted);padding:16px 0}.login-page{justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);text-align:center;width:100%;max-width:400px;box-shadow:var(--shadow);padding:48px 40px}.login-card h1{margin-bottom:8px;font-size:28px}.login-card p{color:var(--color-text-muted);margin-bottom:32px}.google-sign-in-btn{color:#333;border-radius:var(--radius);cursor:pointer;background:#fff;border:none;align-items:center;gap:12px;padding:12px 24px;font-size:15px;font-weight:500;transition:box-shadow .15s;display:inline-flex}.google-sign-in-btn:hover{box-shadow:0 2px 8px #0003}.trips-page{max-width:900px;margin:0 auto;padding:24px 20px}.trips-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.trips-header h1{font-size:24px}.header-actions{align-items:center;gap:12px;display:flex}.user-name{color:var(--color-text-muted);font-size:14px}.create-trip-btn{margin-bottom:16px}.create-trip-form{align-items:center;gap:8px;margin-bottom:24px;display:flex}.create-trip-form input{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text);outline:none;flex:1;padding:8px 12px;font-size:14px}.create-trip-form input:focus{border-color:var(--color-primary)}.trips-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;display:grid}.trip-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:20px;transition:border-color .15s}.trip-card:hover{border-color:var(--color-primary)}.trip-card h2{margin-bottom:4px;font-size:18px}.trip-dates{color:var(--color-text-muted);margin-bottom:8px;font-size:13px}.trip-description{color:var(--color-text-muted);margin-bottom:16px;font-size:14px}.trip-actions{gap:8px;display:flex}.empty-state{text-align:center;color:var(--color-text-muted);padding:60px 20px;font-size:16px}.editor-page{flex-direction:column;height:100vh;display:flex}.editor-header{background:var(--color-surface);border-bottom:1px solid var(--color-border);align-items:center;gap:16px;padding:12px 20px;display:flex}.back-link{color:var(--color-text-muted);font-size:14px}.back-link:hover{color:var(--color-text)}.editor-header h1{flex:1;font-size:18px}.editor-layout{flex:1;display:flex;overflow:hidden}.editor-sidebar{border-right:1px solid var(--color-border);width:400px;padding:20px;overflow-y:auto}.editor-map{background:var(--color-surface);flex:1;justify-content:center;align-items:center;display:flex}.placeholder-text{color:var(--color-text-muted);text-align:center;padding:20px;font-size:14px}.guide-page{min-height:100vh}.guide-header{background:var(--color-surface);border-bottom:1px solid var(--color-border);z-index:10;align-items:center;gap:12px;padding:12px 16px;display:flex;position:sticky;top:0}.guide-title h1{font-size:18px}@media (width<=768px){.editor-layout{flex-direction:column}.editor-sidebar{border-right:none;border-bottom:1px solid var(--color-border);width:100%}.trips-grid{grid-template-columns:1fr}}