.app-container[data-v-4a97cfe6]{display:flex;flex-direction:column;min-height:100vh;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.app-header[data-v-4a97cfe6]{background-color:#2c3e50;color:#fff;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 10px #0000001a}.logo-container h1[data-v-4a97cfe6]{margin:0;font-size:1.5rem;font-weight:600}.main-nav[data-v-4a97cfe6]{display:flex;gap:1.5rem;align-items:center}.main-nav a[data-v-4a97cfe6]{color:#ecf0f1;text-decoration:none;font-weight:500;padding:.5rem 1rem;border-radius:4px;transition:all .3s}.main-nav a[data-v-4a97cfe6]:hover{background-color:#34495e}.main-nav a.active[data-v-4a97cfe6]{background-color:#3498db;color:#fff}.logout-btn[data-v-4a97cfe6]{background:#e63946;color:#fff;border:none;padding:.5rem 1rem;border-radius:4px;cursor:pointer;font-weight:500;transition:background-color .2s}.logout-btn[data-v-4a97cfe6]:hover{background-color:#d62828}.app-content[data-v-4a97cfe6]{flex:1;padding:0;width:100%}.plan-select-modal[data-v-4a97cfe6]{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content[data-v-4a97cfe6]{background:#fff;border-radius:10px;padding:25px;width:90%;max-width:500px;max-height:80vh;overflow-y:auto;box-shadow:0 5px 15px #0000004d}.plan-list[data-v-4a97cfe6]{margin:20px 0}.plan-item[data-v-4a97cfe6]{padding:15px;border-bottom:1px solid #eee;cursor:pointer;transition:background-color .2s}.plan-item[data-v-4a97cfe6]:hover{background-color:#f5f7fa}.plan-name[data-v-4a97cfe6]{font-weight:600;font-size:18px;margin-bottom:8px}.plan-meta[data-v-4a97cfe6]{display:flex;gap:15px;color:#666;font-size:14px}.cancel-btn[data-v-4a97cfe6]{display:block;width:100%;padding:12px;background:#f0f2f5;border:none;border-radius:6px;font-size:16px;cursor:pointer;transition:background-color .2s}.cancel-btn[data-v-4a97cfe6]:hover{background:#e4e6e9}.loading[data-v-4a97cfe6]{text-align:center;padding:30px;color:#666}.empty[data-v-4a97cfe6]{text-align:center;padding:30px;color:#999}.mode-selector[data-v-4a97cfe6]{max-width:550px}.mode-options[data-v-4a97cfe6]{display:flex;gap:20px;margin:25px 0}.mode-card[data-v-4a97cfe6]{flex:1;padding:25px 20px;border:2px solid #e8e8ed;border-radius:16px;text-align:center;cursor:pointer;transition:all .3s}.mode-card[data-v-4a97cfe6]:hover{border-color:#667eea;background:linear-gradient(135deg,#667eea0d,#764ba20d);transform:translateY(-4px);box-shadow:0 8px 25px #667eea26}.mode-card.exam[data-v-4a97cfe6]:hover{border-color:#ff9500;background:linear-gradient(135deg,#ff95000d,#ff5e3a0d);box-shadow:0 8px 25px #ff950026}.mode-icon[data-v-4a97cfe6]{font-size:48px;margin-bottom:12px}.mode-name[data-v-4a97cfe6]{font-size:18px;font-weight:600;color:#1d1d1f;margin-bottom:8px}.mode-desc[data-v-4a97cfe6]{font-size:13px;color:#86868b;line-height:1.4}.exam-settings[data-v-4a97cfe6]{display:flex;align-items:center;gap:15px;padding:20px;background:linear-gradient(135deg,#ff95001a,#ff5e3a1a);border-radius:12px;margin-bottom:20px}.exam-settings label[data-v-4a97cfe6]{font-weight:500;color:#1d1d1f}.exam-settings select[data-v-4a97cfe6]{padding:10px 16px;border:1px solid #e8e8ed;border-radius:8px;font-size:15px;background:#fff;cursor:pointer}.start-exam-btn[data-v-4a97cfe6]{flex:1;padding:12px 24px;background:linear-gradient(135deg,#ff9500,#ff5e3a);color:#fff;border:none;border-radius:25px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s}.start-exam-btn[data-v-4a97cfe6]:hover{transform:scale(1.05);box-shadow:0 4px 15px #ff950066}