/* ===== Tokens ===== */
:root{
  --bg:#EEF1EE;
  --surface:#FFFFFF;
  --paper:#FBF9F3;
  --paper-line:#E7E1D2;
  --ink:#12261F;
  --ink-2:#4B5B54;
  --ink-3:#8A968F;
  --green:#0B4D3A;
  --green-2:#137A5C;
  --green-soft:#DCEBE3;
  --gold:#D99A1E;
  --gold-soft:#FBEFD2;
  --red:#C2362B;
  --red-soft:#F9E1DD;
  --blue:#2B5DA8;
  --radius:18px;
  --shadow:0 1px 2px rgba(18,38,31,.06),0 8px 24px rgba(18,38,31,.08);
  --font-d:"Fraunces",Georgia,"Times New Roman",serif;
  --font-b:"Manrope",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-m:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --safe-b:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{background:#DDE3DE;font-family:var(--font-b);color:var(--ink);-webkit-font-smoothing:antialiased;line-height:1.45;font-size:15px}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;-webkit-tap-highlight-color:transparent}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:8px}
h1,h2,h3{font-family:var(--font-d);font-weight:700;line-height:1.15;letter-spacing:-.01em}

/* ===== Phone shell ===== */
.phone{max-width:440px;margin:0 auto;height:100dvh;background:var(--bg);display:flex;flex-direction:column;position:relative;overflow:hidden}
@media(min-width:520px){body{padding:24px 0}.phone{height:calc(100dvh - 48px);border-radius:36px;box-shadow:0 30px 80px rgba(18,38,31,.25);border:8px solid #10201A}}
.screen{flex:1;overflow-y:auto;padding:18px 18px calc(84px + var(--safe-b))}
.screen.full{padding-bottom:calc(14px + var(--safe-b))}
.screen::-webkit-scrollbar{width:0}

/* ===== Tab bar ===== */
.tabbar{position:absolute;left:0;right:0;bottom:0;display:flex;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-top:1px solid #E1E6E2;padding:6px 8px calc(6px + var(--safe-b))}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11px;font-weight:600;color:var(--ink-3);padding:6px 0;border-radius:12px;transition:color .15s}
.tab .ico{font-size:20px;line-height:1}
.tab.active{color:var(--green)}
.tabbar.hidden{display:none}

/* ===== Common ===== */
.eyebrow{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.title{font-size:28px;margin:4px 0 2px}
.sub{color:var(--ink-2);font-size:14px}
.row{display:flex;align-items:center;gap:10px}
.spread{display:flex;align-items:center;justify-content:space-between;gap:10px}
.card{background:var(--surface);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.stack>*+*{margin-top:12px}
.section{margin-top:26px}
.section h2{font-size:19px;margin-bottom:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:14px;font-weight:700;font-size:15px;background:var(--green);color:#fff;transition:transform .08s,filter .15s;width:100%}
.btn:active{transform:scale(.98)}
.btn.secondary{background:var(--green-soft);color:var(--green)}
.btn.ghost{background:transparent;color:var(--green);box-shadow:inset 0 0 0 1.5px var(--green-soft)}
.btn.small{width:auto;padding:9px 14px;font-size:13px;border-radius:11px}
.btn[disabled]{opacity:.45;pointer-events:none}
.pill{display:inline-block;padding:3px 9px;border-radius:99px;font-size:11px;font-weight:700;letter-spacing:.04em}
.pill.green{background:var(--green-soft);color:var(--green)}
.pill.gold{background:var(--gold-soft);color:#8A5E07}
.pill.red{background:var(--red-soft);color:var(--red)}
.pill.gray{background:#ECEFEC;color:var(--ink-2)}
.back{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-weight:700;font-size:14px;margin-bottom:14px;padding:6px 0}
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.progressbar{height:6px;border-radius:99px;background:#E4E9E5;overflow:hidden}
.progressbar>i{display:block;height:100%;background:var(--green-2);border-radius:99px;transition:width .4s ease}
.progressbar.gold>i{background:var(--gold)}
.empty{text-align:center;color:var(--ink-2);padding:30px 10px}
.empty .big{font-size:44px;margin-bottom:8px}

/* ===== Home ===== */
.hero{background:var(--green);color:#fff;border-radius:24px;padding:22px 20px;position:relative;overflow:hidden;box-shadow:0 12px 30px rgba(11,77,58,.35)}
.hero::after{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;border:26px solid rgba(255,255,255,.07)}
.hero .eyebrow{color:rgba(255,255,255,.7)}
.hero h1{font-size:30px;margin:6px 0 4px;font-weight:900}
.hero .sub{color:rgba(255,255,255,.85)}
.hero .btn{background:#fff;color:var(--green);margin-top:16px;position:relative}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.stat{background:var(--surface);border-radius:16px;padding:12px 10px;text-align:center;box-shadow:var(--shadow)}
.stat b{display:block;font-family:var(--font-d);font-size:24px;font-weight:700;color:var(--green)}
.stat span{font-size:11px;color:var(--ink-2);font-weight:600}
.deck-row{display:flex;align-items:center;gap:12px;background:var(--surface);border-radius:16px;padding:12px 14px;box-shadow:var(--shadow);width:100%;text-align:left}
.deck-row .em{width:44px;height:44px;border-radius:13px;background:var(--green-soft);display:grid;place-items:center;font-size:22px;flex:none}
.deck-row .info{flex:1;min-width:0}
.deck-row .info b{display:block;font-size:15px}
.deck-row .info small{color:var(--ink-2);font-size:12px}
.deck-row .due{font-family:var(--font-d);font-weight:700;color:var(--green);font-size:18px;flex:none;min-width:34px;text-align:right}
.deck-row .due.zero{color:var(--ink-3)}
.deck-row .progressbar{margin-top:6px}

/* ===== Deck / topic ===== */
.deck-head{display:flex;gap:14px;align-items:center}
.deck-head .em{width:60px;height:60px;border-radius:18px;background:var(--green-soft);display:grid;place-items:center;font-size:30px;flex:none}
.topic{background:var(--surface);border-radius:16px;padding:14px;box-shadow:var(--shadow);width:100%;text-align:left}
.topic .aula{font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--gold);text-transform:uppercase}
.topic b{display:block;font-size:15px;margin:2px 0 6px;font-family:var(--font-d);font-weight:700}
.topic .meta{font-size:12px;color:var(--ink-2)}
.topic .progressbar{margin-top:8px}
.resumo{background:var(--paper);border:1px solid var(--paper-line);border-radius:16px;padding:16px 18px;font-size:15px;line-height:1.6;color:var(--ink)}
.resumo p+p,.resumo ul+p,.resumo p+ul{margin-top:10px}
.resumo ul{padding-left:18px}
.resumo li{margin:4px 0}
.resumo strong{color:var(--green)}
.actions{display:grid;gap:10px;margin-top:14px}
.actions.two{grid-template-columns:1fr 1fr}
.list-cards{margin-top:14px}
.mini{background:var(--surface);border-radius:12px;padding:10px 12px;box-shadow:var(--shadow);font-size:13px}
.mini+.mini{margin-top:8px}
.mini .q{font-weight:700}
.mini .a{color:var(--ink-2);margin-top:4px;white-space:pre-wrap}
.mini .st{float:right;font-size:10px;margin-left:8px}

/* ===== Study ===== */
.study{display:flex;flex-direction:column;min-height:100%}
.study .topbar{margin-bottom:8px}
.study .close{font-size:22px;color:var(--ink-2);padding:4px 8px}
.counter{font-size:12px;font-weight:700;color:var(--ink-2)}
.flip-wrap{flex:1;display:flex;align-items:center;justify-content:center;perspective:1400px;padding:8px 0}
.flashcard{position:relative;width:100%;min-height:380px;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.4,.2,.2,1);cursor:pointer}
.flashcard.flipped{transform:rotateY(180deg)}
.face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:20px;background:var(--paper);border:1px solid var(--paper-line);box-shadow:0 2px 0 #fff inset,0 14px 34px rgba(18,38,31,.14);padding:26px 22px 22px;display:flex;flex-direction:column;align-items:stretch;
  background-image:repeating-linear-gradient(transparent 0 27px,rgba(11,77,58,.07) 27px 28px);background-position:0 70px}
.face.back{transform:rotateY(180deg);background-image:repeating-linear-gradient(transparent 0 27px,rgba(217,154,30,.12) 27px 28px)}
.face .tag{display:flex;justify-content:space-between;align-items:center;font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}
.face .tag .tp{color:var(--green)}
.face .body{flex:1;display:flex;align-items:center;justify-content:center;text-align:center;padding:14px 0}
.face .text{font-family:var(--font-d);font-size:22px;font-weight:500;line-height:1.35;color:var(--ink)}
.face.back .text{font-family:var(--font-b);font-size:17px;font-weight:600;line-height:1.5}
.face .text.formula{font-family:var(--font-m);font-size:15px;font-weight:500;white-space:pre-wrap;text-align:left}
.face .text .verdict{display:block;font-family:var(--font-d);font-size:26px;font-weight:900;margin-bottom:8px}
.verdict.ok{color:var(--green-2)}.verdict.no{color:var(--red)}
.face .hint{font-size:13px;color:var(--ink-2);background:var(--gold-soft);border-radius:10px;padding:9px 12px;margin-top:8px;text-align:left}
.face .hint b{color:#8A5E07}
.face .foot{font-size:12px;color:var(--ink-3);text-align:center;margin-top:6px}
.blank{display:inline-block;min-width:64px;border-bottom:2px solid var(--gold)}
.fill{background:var(--gold-soft);border-radius:6px;padding:0 5px;color:#7A5206;font-weight:800}
.stamp{position:absolute;right:18px;bottom:56px;padding:6px 14px;border:4px solid var(--red);color:var(--red);border-radius:8px;font-family:var(--font-d);font-weight:900;font-size:24px;letter-spacing:.06em;text-transform:uppercase;transform:rotate(-14deg) scale(1.6);opacity:0;mix-blend-mode:multiply;pointer-events:none}
.stamp.green{border-color:var(--green-2);color:var(--green-2)}
.stamp.show{animation:stamp .32s cubic-bezier(.2,1.4,.4,1) forwards}
@keyframes stamp{from{opacity:0;transform:rotate(-14deg) scale(1.7)}70%{opacity:.95;transform:rotate(-12deg) scale(.96)}to{opacity:.9;transform:rotate(-12deg) scale(1)}}
.ce-choice{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}
.ce-choice .btn{font-family:var(--font-d);font-size:18px;letter-spacing:.04em}
.ce-choice .btn.e{background:var(--red)}
.rate{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}
.rate button{background:var(--surface);border-radius:14px;padding:10px 4px;box-shadow:var(--shadow);font-weight:800;font-size:13px;display:flex;flex-direction:column;gap:2px;align-items:center;transition:transform .08s}
.rate button:active{transform:scale(.95)}
.rate small{font-weight:600;font-size:10px;color:var(--ink-3)}
.rate .r0{color:var(--red)}.rate .r1{color:#B4741B}.rate .r2{color:var(--green-2)}.rate .r3{color:var(--blue)}
.rate.one{grid-template-columns:1fr}
.tapme{text-align:center;color:var(--ink-3);font-size:13px;margin-top:10px;font-weight:600;min-height:42px;display:flex;align-items:center;justify-content:center}
.sess-bar{height:5px;background:#DCE3DE;border-radius:99px;overflow:hidden;margin-top:6px}
.sess-bar i{display:block;height:100%;background:var(--gold);transition:width .3s}

/* ===== Session summary ===== */
.summary{text-align:center;padding-top:30px}
.summary .big{font-family:var(--font-d);font-size:64px;font-weight:900;color:var(--green);line-height:1}
.summary .grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin:22px 0}

/* ===== Progress ===== */
.ring{width:130px;height:130px;margin:0 auto;position:relative}
.ring svg{transform:rotate(-90deg)}
.ring b{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--font-d);font-size:28px;font-weight:700;color:var(--green)}
.week{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;margin-top:10px}
.day{aspect-ratio:1;border-radius:10px;background:#E4E9E5;display:grid;place-items:center;font-size:11px;font-weight:700;color:var(--ink-3)}
.day.on{background:var(--green-2);color:#fff}
.day.today{box-shadow:0 0 0 2px var(--gold)}
.bar-row{display:flex;align-items:center;gap:10px;font-size:13px}
.bar-row .em{width:28px;text-align:center}
.bar-row .n{width:110px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bar-row .progressbar{flex:1}
.bar-row .pct{width:36px;text-align:right;font-weight:700;color:var(--ink-2);font-size:12px}

/* ===== Settings ===== */
.setting{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid #E6EAE6}
.setting:last-child{border-bottom:0}
.setting label{font-weight:700;font-size:14px}
.setting small{display:block;color:var(--ink-2);font-weight:500;font-size:12px}
.setting input[type=number]{width:70px;padding:8px;border-radius:10px;border:1.5px solid #D6DDD8;font:inherit;text-align:center;font-weight:700}
.setting input[type=text]{width:150px;padding:8px 10px;border-radius:10px;border:1.5px solid #D6DDD8;font:inherit;font-weight:700}
.danger{color:var(--red)}
.toast{position:absolute;left:50%;bottom:calc(96px + var(--safe-b));transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:10px 16px;border-radius:12px;font-size:13px;font-weight:600;opacity:0;transition:.25s;pointer-events:none;white-space:nowrap;z-index:5}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ===== Search ===== */
.search{width:100%;padding:12px 14px;border-radius:14px;border:1.5px solid #D6DDD8;font:inherit;font-size:15px;background:var(--surface);margin-bottom:12px}
.search:focus{outline:none;border-color:var(--green-2)}

@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ===== Editor ===== */
.form .lbl{display:block;font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);margin-bottom:12px}
.form .lbl small{display:block;text-transform:none;letter-spacing:0;font-weight:500;color:var(--ink-2);margin-top:2px}
.form textarea,.form input[type=text],.form select{display:block;width:100%;margin-top:6px;padding:10px 12px;border-radius:12px;border:1.5px solid #D6DDD8;font:inherit;font-size:15px;color:var(--ink);background:var(--paper);text-transform:none;letter-spacing:0;font-weight:500;resize:vertical}
.form textarea:focus,.form input:focus,.form select:focus{outline:none;border-color:var(--green-2)}
.form .lbl:last-child{margin-bottom:0}

/* ===== Mensagem do dia ===== */
.sheet-bg{position:absolute;inset:0;background:rgba(18,38,31,.45);display:flex;align-items:flex-end;justify-content:center;z-index:10;opacity:0;transition:opacity .25s;backdrop-filter:blur(3px)}
.sheet-bg.show{opacity:1}
.sheet{background:var(--paper);border-radius:26px 26px 0 0;padding:26px 22px calc(26px + var(--safe-b));width:100%;transform:translateY(40px);transition:transform .3s cubic-bezier(.2,.9,.3,1.1);background-image:repeating-linear-gradient(transparent 0 27px,rgba(11,77,58,.06) 27px 28px)}
.sheet-bg.show .sheet{transform:translateY(0)}
.sheet .msg{font-family:var(--font-d);font-size:22px;font-weight:500;line-height:1.35;margin:10px 0 14px;color:var(--ink)}
.sheet .tip{background:var(--gold-soft);border-radius:12px;padding:10px 12px;font-size:14px;color:var(--ink-2)}
.sheet .tip b{display:block;color:#8A5E07;font-size:11px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:2px}