:root{--tf-primary:#17365d;--tf-accent:#ed7d31;--tf-bg:#f3f6fa;--tf-surface:#fff;--tf-text:#263238}*{box-sizing:border-box}.teacher-feco-page{margin:0!important;background:var(--tf-bg);font-family:"Century Gothic",Arial,sans-serif;color:var(--tf-text)}.teacher-feco-page .entry-content{margin:0}.tf-root{min-height:100vh;background:var(--tf-bg);color:var(--tf-text)}.tf-auth{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,var(--tf-primary),#06182d);background-size:cover;background-position:center}.tf-auth-card{width:min(520px,100%);background:#fff;border-radius:22px;padding:34px;box-shadow:0 22px 70px #0005}.tf-auth-brand,.tf-side-brand{display:flex;align-items:center;gap:13px}.tf-auth-brand{justify-content:center;margin-bottom:24px}.tf-auth-brand div:last-child,.tf-side-brand div:last-child{display:flex;flex-direction:column}.tf-auth-brand strong{font-size:20px;color:var(--tf-primary)}.tf-auth-brand span,.tf-side-brand 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th{background:var(--tf-primary);color:white}.tf-actions{display:flex;gap:8px;flex-wrap:wrap}.tf-btn.small{padding:8px 12px;font-size:12px}.tf-btn.secondary{background:var(--tf-primary)}.tf-classroom{display:grid;grid-template-columns:240px 1fr 38%;gap:15px;height:calc(100vh - 125px)}.tf-teacher,.tf-chat,.tf-board{background:white;border-radius:16px;border:1px solid #e5ebf1;overflow:hidden}.tf-teacher{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:18px;text-align:center;background:linear-gradient(#eef4fa,#fff)}.tf-avatar{width:145px;height:145px;border-radius:50%;display:grid;place-items:center;background:var(--tf-primary);color:white;font-size:55px;border:8px solid #fff;box-shadow:0 6px 25px #17365d33}.tf-avatar.speaking{animation:pulse 1s infinite}@keyframes pulse{50%{box-shadow:0 0 0 18px #ed7d3122}}.tf-chat{display:flex;flex-direction:column}.tf-chat-log{flex:1;overflow:auto;padding:16px;display:grid;gap:10px;align-content:start}.tf-bubble{padding:11px 13px;border-radius:13px;max-width:88%;white-space:pre-wrap}.tf-bubble.student{margin-left:auto;background:var(--tf-accent);color:white}.tf-bubble.teacher{background:#edf3f8;color:var(--tf-text)}.tf-chat-form{display:flex;padding:12px;border-top:1px solid #e6ebf1;gap:8px}.tf-chat-form textarea{flex:1;resize:none;border:1px solid #d7dfe9;border-radius:10px;padding:10px}.tf-board{padding:18px;background:#fffef7}.tf-board-body{white-space:pre-wrap;font-family:"Comic Sans MS",cursive;font-size:18px;line-height:1.6}.tf-quick{display:flex;gap:6px;flex-wrap:wrap;margin-top:14px}.tf-quick button{border:1px solid var(--tf-accent);color:var(--tf-accent);background:white;border-radius:999px;padding:7px 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