:root{color-scheme:light;--forest:#344c39;--sage:#dce6d3;--cream:#faf8f1;--burgundy:#831e3f;--ink:#25312a;--line:#c9d2c3;--focus:#005fcc}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,'Segoe UI',sans-serif;line-height:1.6;background:var(--cream);color:var(--ink)}a{color:var(--forest)}a:focus-visible,button:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:8px}.skip:focus{left:8px}.site-header{background:#fff;border-bottom:3px solid var(--sage);padding:14px clamp(16px,5vw,90px);display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}.brand{display:flex;align-items:center;gap:12px}.brand strong{display:block;color:var(--burgundy);font-family:Georgia,serif;font-size:23px}.brand small{display:block;color:#445448}.brand-icon{font-size:35px;color:var(--forest)}nav{display:flex;flex-wrap:wrap;gap:8px}nav a{padding:7px 12px;border-radius:30px;text-decoration:none;font-weight:650}nav a:hover,nav a.active{background:var(--sage)}main{max-width:1180px;margin:auto;padding:0 20px 50px}.hero{padding:75px 0 55px;max-width:870px}.hero h1{font-family:Georgia,serif;font-size:clamp(34px,5vw,62px);line-height:1.16;letter-spacing:-.02em;color:var(--burgundy);margin:12px 0 18px}.hero>p{font-size:18px}.eyebrow{font-weight:800;font-size:14px!important;letter-spacing:.11em;color:var(--forest)}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0}.button,button{appearance:none;border:2px solid var(--forest);background:var(--forest);color:#fff;padding:12px 20px;border-radius:12px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none;display:inline-block}.button:hover,button:hover{filter:brightness(1.12)}.button.outline,.outline{background:transparent;color:var(--forest)}.notice{background:#fff8e8;border-left:5px solid #b5812a;padding:12px 17px;border-radius:6px;font-size:15px!important}.section{padding:25px 0}.section h2,.page-title{font-family:Georgia,serif;color:var(--burgundy);font-size:clamp(26px,3vw,37px)}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.tutor-card{text-decoration:none;background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:0 8px 24px #344c3910}.tutor-card:hover{border-color:var(--forest);transform:translateY(-2px)}.tutor-card h3{color:var(--burgundy);font-size:23px}.emoji{font-size:40px}.enter{font-weight:800}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px}.panel,.exercise{background:white;border:1px solid var(--line);border-radius:17px;padding:22px}.steps{padding-left:27px}.steps li{margin-bottom:13px}.tutor-banner{padding:43px 0 20px}.tutor-banner h1{margin:0;font-family:Georgia,serif;font-size:clamp(31px,4vw,48px);color:var(--burgundy)}.tutor-banner p{max-width:750px;font-size:17px}.workspace{display:grid;grid-template-columns:290px 1fr;gap:20px;align-items:start}.settings{position:sticky;top:14px}.settings label{display:block;font-weight:750;margin-bottom:7px}.settings select{width:100%;padding:12px;background:#fff;border:1px solid #8b9888;border-radius:9px;margin-bottom:18px;font:inherit}.lab-heading{color:var(--burgundy);font-family:Georgia,serif;font-size:29px;margin:0 0 10px}.tag{display:inline-block;font-weight:700;background:var(--sage);color:var(--forest);padding:3px 10px;border-radius:20px;font-size:13px}.block{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}.block h3{color:var(--forest);margin:0 0 10px}.quiz label{display:block;font-weight:700;margin-bottom:7px}.quiz textarea{width:100%;min-height:90px;font:inherit;padding:12px;border:1px solid #8b9888;border-radius:9px;resize:vertical}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}.feedback{background:#eef4e9;border-left:4px solid var(--forest);padding:12px;margin-top:14px}.hidden{display:none}.print-note{font-size:13px;color:#46534b}footer{text-align:center;border-top:1px solid var(--line);padding:22px;font-size:13px;color:#4c5b50}@media(max-width:850px){.workspace,.two-col{grid-template-columns:1fr}.settings{position:static}.cards{grid-template-columns:1fr}.hero{padding-top:40px}}@media(prefers-reduced-motion:no-preference){.tutor-card{transition:transform .15s}}@media print{nav,.actions,.settings,.hero-actions{display:none!important}.workspace{display:block}.panel,.exercise{border:0;box-shadow:none}body{background:#fff}}

/* Indicii progresive */
.hint-step+.hint-step{margin-top:15px;padding-top:15px;border-top:1px solid #c9d2c3}
.hint-step p{margin:6px 0 0}
button:disabled{opacity:.67;cursor:not-allowed}
button[hidden]{display:none!important}

/* Feedback formativ */
.quiz .feedback p{margin:.45rem 0;line-height:1.6}
.quiz .feedback strong{display:block;margin-bottom:.5rem}
.actions{flex-wrap:wrap}

/* Adaptări pentru mobil și tastatură */
html{overflow-x:hidden}body{overflow-wrap:anywhere}
button,.button,select{min-height:44px}
@media(max-width:600px){main{padding-inline:14px}.panel{padding:16px}.actions{display:grid;grid-template-columns:1fr}.actions button{width:100%}.site-header{padding-inline:14px}nav a{min-height:44px;display:inline-flex;align-items:center}}
@media(forced-colors:active){.feedback,.tag,.notice{border:1px solid CanvasText}}

/* Clasificarea are text explicit, nu se bazează doar pe culori. */
.feedback[data-result="error"]{border-left:4px solid #8b233b;}
.feedback[data-result="argued"]{border-left:4px solid #2f6247;}
.feedback[data-result="teacher"],.feedback[data-result="partial"]{border-left:4px solid #8a6b22;}

.inline-code{font-family:Consolas,Monaco,monospace;background:#edf2e9;color:#26382b;border:1px solid #d4e0d1;padding:.05em .24em;border-radius:4px;overflow-wrap:anywhere;}