:root{--color-primary:#3b6cf0;--color-primary-dark:#2c54c9;--color-primary-light:#86a8ff;--color-primary-soft:#eef2fe;--color-text:#1c2331;--color-text-muted:#6b7280;--color-border:#e5e7eb;--color-bg:#fff;--color-bg-subtle:#f7f8fa;--color-dark-bg:#0d0d0f;--color-success-bg:#e7f6ec;--color-success-text:#1e8a44;--color-danger-bg:#fdecee;--color-danger-text:#d64545;--header-height:64px;--radius:10px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;margin:0}a{color:inherit;text-decoration:none}.app{flex-direction:column;min-height:100%;display:flex}button{font-family:inherit}.brand-panel{background:var(--color-dark-bg);color:#fff;flex-direction:column;justify-content:space-between;width:42%;min-width:380px;padding:48px;display:flex;position:relative;overflow:hidden}.brand-panel__logo{z-index:1;width:auto;height:24px;position:relative}.brand-panel__body{z-index:1;position:relative}.brand-panel__eyebrow{color:var(--color-primary-light);letter-spacing:.08em;margin-bottom:14px;font-size:12.5px;font-weight:800;display:inline-block}.brand-panel__headline{letter-spacing:-.5px;margin:0 0 18px;font-size:38px;font-weight:800;line-height:1.28}.brand-panel__desc{color:#ffffff8c;max-width:360px;margin:0;font-size:14.5px;line-height:1.6}.brand-panel__copyright{z-index:1;color:#ffffff59;margin:0;font-size:11.5px;position:relative}@media (width<=900px){.brand-panel{width:100%;min-width:0;padding:32px}.brand-panel__headline{font-size:28px}}.split-layout{min-height:100vh;display:flex}.split-layout__content{background:var(--color-bg-subtle);flex-direction:column;flex:1;padding:40px 56px;display:flex}@media (width<=900px){.split-layout{flex-direction:column}.split-layout__content{padding:32px}}.login-panel{width:100%;max-width:360px;margin:auto}.login-panel__eyebrow{color:var(--color-primary);letter-spacing:.08em;margin-bottom:14px;font-size:12.5px;font-weight:800;display:inline-block}.login-panel__title{letter-spacing:-.4px;margin:0 0 10px;font-size:30px;font-weight:800}.login-panel__desc{color:var(--color-text-muted);margin:0 0 36px;font-size:14.5px}.login-panel__error{background:var(--color-danger-bg);color:var(--color-danger-text);border-radius:8px;margin:-20px 0 20px;padding:12px 14px;font-size:13.5px;line-height:1.5}.login-button{background:var(--color-text);color:#fff;cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:10px;width:100%;padding:14px 20px;font-size:15px;font-weight:600;transition:background .15s;display:inline-flex}.login-button:hover:not(:disabled){background:#000}.login-button:disabled{opacity:.7;cursor:default}.login-panel__note{text-align:center;color:var(--color-text-muted);margin:24px 0 0;font-size:12.5px}.dashboard-panel{width:100%;margin:auto 0}.dashboard-panel__top{justify-content:space-between;align-items:flex-start;gap:24px;margin-bottom:40px;display:flex}.dashboard-panel__eyebrow{color:var(--color-primary);letter-spacing:.08em;margin-bottom:14px;font-size:12.5px;font-weight:800;display:inline-block}.dashboard-panel__title{letter-spacing:-.4px;margin:0 0 10px;font-size:28px;font-weight:800}.dashboard-panel__greeting{color:var(--color-text-muted);margin:0;font-size:14.5px}.logout-button{border:1px solid var(--color-border);color:var(--color-text);cursor:pointer;background:#fff;border-radius:8px;flex-shrink:0;padding:9px 16px;font-size:13.5px;font-weight:600}.logout-button:hover{border-color:var(--color-text)}.service-grid{grid-template-columns:repeat(3,minmax(0,180px));gap:16px;display:grid}.service-card{border:1px solid var(--color-border);cursor:pointer;background:#fff;border-radius:14px;flex-direction:column;align-items:flex-start;gap:14px;padding:24px 20px;transition:box-shadow .15s,transform .15s;display:flex}.service-card:not(.service-card--disabled):hover{transform:translateY(-2px);box-shadow:0 10px 24px #0f172a14}.service-card--disabled{cursor:default;opacity:.55}.service-card__icon{color:#fff;border-radius:12px;justify-content:center;align-items:center;width:44px;height:44px;font-size:17px;font-weight:800;display:inline-flex}.service-card__icon--gemini{background:linear-gradient(135deg,#7c6cf0 0%,#4f8cf7 100%)}.service-card__icon--chatgpt{background:#111827}.service-card__icon--quiz{background:var(--color-primary)}.service-card__name{font-size:15.5px;font-weight:700}.service-card__subtitle{color:var(--color-text-muted);font-size:12.5px}@media (width<=640px){.service-grid{grid-template-columns:1fr}}