@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,500&display=swap');

:root{
  --navy:#092d5a;
  --navy-light:#123a6e;
  --navy-soft:#e8edf5;
  --green:#b1d6c0;
  --green-dark:#7fb897;
  --green-text:#2f5c42;
  --lemon:#fff56e;
  --lemon-dark:#e8d92e;
  --white:#ffffff;
  --gray-50:#f7f8fa;
  --gray-100:#eef1f5;
  --gray-300:#cdd6e0;
  --gray-500:#8592a3;
  --gray-700:#4a5568;
  --danger:#e0665a;
  --success:#3fa66a;
  --radius-sm:10px;
  --radius-md:18px;
  --radius-lg:28px;
  --radius-pill:999px;
  --shadow-card:0 4px 18px rgba(9,45,90,0.08);
  --shadow-pop:0 10px 30px rgba(9,45,90,0.18);
  --safe-bottom:env(safe-area-inset-bottom,0px);
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:'Inter',system-ui,sans-serif;
  background:var(--gray-50);
  color:var(--navy);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-weight:800;margin:0 0 8px;line-height:1.15;letter-spacing:-0.01em;}
p{margin:0 0 10px;line-height:1.5;}
button{font-family:inherit;cursor:pointer;}
input,textarea{font-family:inherit;}
a{color:inherit;}
img{max-width:100%;display:block;}
::selection{background:var(--lemon);color:var(--navy);}

#app{
  max-width:520px;
  margin:0 auto;
  min-height:100vh;
  background:var(--gray-50);
  position:relative;
  padding-bottom:calc(84px + var(--safe-bottom));
}

/* ===== TOP BAR ===== */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 18px 10px;
  background:var(--white);
  position:sticky;top:0;z-index:40;
  border-bottom:1px solid var(--gray-100);
}
.topbar .brand{display:flex;align-items:center;gap:8px;}
.topbar .brand img{height:30px;width:auto;}
.topbar .title-block{display:flex;flex-direction:column;}
.topbar .title-block .app-name{font-size:12px;font-weight:800;color:var(--navy);letter-spacing:.02em;}
.topbar .title-block .app-sub{font-size:10px;color:var(--gray-500);font-weight:600;}
.topbar .xp-chip{
  display:flex;align-items:center;gap:6px;
  background:var(--navy);color:var(--white);
  padding:7px 12px;border-radius:var(--radius-pill);
  font-weight:800;font-size:13px;
}
.topbar .xp-chip .flame{color:var(--lemon);}
.back-btn{
  background:var(--gray-100);border:none;border-radius:var(--radius-pill);
  width:36px;height:36px;display:flex;align-items:center;justify-content:center;
  font-size:16px;color:var(--navy);font-weight:700;
}

/* ===== BOTTOM NAV ===== */
.bottom-nav{
  position:fixed;left:50%;transform:translateX(-50%);bottom:0;
  width:100%;max-width:520px;
  background:var(--white);
  border-top:1px solid var(--gray-100);
  display:flex;justify-content:space-around;align-items:center;
  padding:8px 4px calc(8px + var(--safe-bottom));
  z-index:50;
  box-shadow:0 -4px 20px rgba(9,45,90,0.06);
}
.nav-btn{
  background:none;border:none;display:flex;flex-direction:column;align-items:center;gap:3px;
  color:var(--gray-500);font-size:10px;font-weight:700;padding:6px 8px;border-radius:12px;
  flex:1;
}
.nav-btn .icon{font-size:20px;line-height:1;}
.nav-btn.active{color:var(--navy);background:var(--navy-soft);}

/* ===== SCREEN ===== */
.screen{padding:18px 18px 28px;animation:fadeIn .28s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}

/* ===== CARD ===== */
.card{
  background:var(--white);
  border-radius:var(--radius-lg);
  padding:20px;
  box-shadow:var(--shadow-card);
  margin-bottom:16px;
}
.card.navy{background:var(--navy);color:var(--white);}
.card.navy p{color:var(--green);}
.card.green{background:var(--green);color:var(--navy);}
.card.lemon{background:var(--lemon);color:var(--navy);}
.card.outline{background:var(--white);border:2px solid var(--gray-100);box-shadow:none;}

/* ===== BUTTONS ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;border-radius:var(--radius-pill);
  padding:14px 22px;font-weight:800;font-size:15px;
  transition:transform .12s ease, box-shadow .12s ease;
  width:100%;
}
.btn:active{transform:scale(0.97);}
.btn-primary{background:var(--navy);color:var(--white);box-shadow:0 6px 16px rgba(9,45,90,0.25);}
.btn-cta{background:var(--lemon);color:var(--navy);box-shadow:0 6px 16px rgba(255,245,110,0.4);}
.btn-secondary{background:var(--navy-soft);color:var(--navy);}
.btn-outline{background:transparent;color:var(--navy);border:2px solid var(--navy);}
.btn-green{background:var(--green);color:var(--navy-light);}
.btn-sm{padding:9px 16px;font-size:13px;width:auto;}
.btn-block{width:100%;}
.btn:disabled{opacity:.4;pointer-events:none;}
.btn-row{display:flex;gap:10px;}
.btn-row .btn{flex:1;}

/* ===== GREETING ===== */
.greeting h1{font-size:23px;}
.greeting-msg{
  background:var(--navy);color:var(--white);
  border-radius:var(--radius-lg);
  padding:18px 20px;
  font-size:14.5px;font-weight:600;
  margin:14px 0 18px;
  position:relative;
}
.greeting-msg::after{
  content:"";position:absolute;left:28px;bottom:-9px;
  width:18px;height:18px;background:var(--navy);
  clip-path:polygon(0 0,100% 0,0 100%);
}

/* ===== STAT ROW ===== */
.stat-row{display:flex;gap:10px;margin-bottom:16px;}
.stat-box{
  flex:1;background:var(--white);border-radius:var(--radius-md);
  padding:14px 10px;text-align:center;box-shadow:var(--shadow-card);
}
.stat-box .stat-icon{font-size:20px;margin-bottom:4px;}
.stat-box .stat-value{font-size:19px;font-weight:900;color:var(--navy);}
.stat-box .stat-label{font-size:10px;color:var(--gray-500);font-weight:700;text-transform:uppercase;letter-spacing:.03em;}

/* ===== PROGRESS BAR ===== */
.progress-track{
  width:100%;height:12px;background:var(--gray-100);border-radius:var(--radius-pill);overflow:hidden;
}
.progress-fill{
  height:100%;background:linear-gradient(90deg,var(--green-dark),var(--green));border-radius:var(--radius-pill);
  transition:width .6s cubic-bezier(.22,1,.36,1);
}
.progress-fill.lemon{background:linear-gradient(90deg,var(--lemon-dark),var(--lemon));}
.progress-label{display:flex;justify-content:space-between;font-size:11px;font-weight:700;color:var(--gray-500);margin-bottom:6px;}

/* ===== LEVEL BADGE ===== */
.level-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--lemon);color:var(--navy);
  padding:6px 14px;border-radius:var(--radius-pill);
  font-weight:800;font-size:12.5px;
}

/* ===== SECTION HEADER ===== */
.section-head{display:flex;align-items:center;justify-content:space-between;margin:22px 0 12px;}
.section-head h2{font-size:16px;}
.section-head .see-all{font-size:12px;font-weight:700;color:var(--navy-light);}
.eyebrow{font-size:11px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--green-text);margin-bottom:4px;}

/* ===== SKILL CARDS (Things I Can Do Now) ===== */
.skills-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.skill-card{
  background:var(--white);border-radius:var(--radius-md);padding:13px 12px;
  box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:6px;min-height:76px;
  border:2px solid transparent;
}
.skill-card.unlocked{border-color:var(--green);}
.skill-card.locked{opacity:.5;}
.skill-card .skill-check{font-size:16px;}
.skill-card .skill-text{font-size:12.5px;font-weight:700;line-height:1.25;}

/* ===== MISSION MAP ===== */
.mission-path{position:relative;padding:10px 4px 20px;}
.mission-node{
  display:flex;align-items:center;gap:14px;
  background:var(--white);border-radius:var(--radius-lg);
  padding:14px 16px;margin-bottom:14px;box-shadow:var(--shadow-card);
  position:relative;border:2px solid transparent;
}
.mission-node.completed{border-color:var(--green-dark);}
.mission-node.locked{opacity:.55;}
.mission-node.current{border-color:var(--lemon-dark);box-shadow:0 6px 20px rgba(255,245,110,0.35);}
.mission-icon{
  width:52px;height:52px;border-radius:16px;background:var(--navy-soft);
  display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0;
}
.mission-node.completed .mission-icon{background:var(--green);}
.mission-node.current .mission-icon{background:var(--lemon);}
.mission-info{flex:1;min-width:0;}
.mission-info .m-title{font-size:14.5px;font-weight:800;margin:0;}
.mission-info .m-sub{font-size:11.5px;color:var(--gray-500);font-weight:600;}
.mission-status{font-size:18px;flex-shrink:0;}
.mission-connector{width:2px;height:14px;background:var(--gray-300);margin:0 0 0 41px;}

/* ===== SPEECH BUBBLE ===== */
.speech-bubble{
  background:var(--green);color:var(--navy);
  border-radius:22px;border-bottom-left-radius:4px;
  padding:14px 16px;font-size:14.5px;font-weight:600;
  margin-bottom:14px;max-width:92%;
}
.speech-bubble.lemon{background:var(--lemon);border-bottom-left-radius:22px;border-bottom-right-radius:4px;margin-left:auto;}
.speech-row{display:flex;gap:8px;align-items:flex-start;margin-bottom:4px;}
.avatar-chip{
  width:34px;height:34px;border-radius:50%;background:var(--navy);color:var(--white);
  display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0;font-weight:800;
}

/* ===== ACTIVITY SCREEN ===== */
.activity-wrap{padding-bottom:10px;}
.activity-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;}
.activity-tag{
  background:var(--navy-soft);color:var(--navy);font-size:10.5px;font-weight:800;
  padding:5px 11px;border-radius:var(--radius-pill);text-transform:uppercase;letter-spacing:.03em;
}
.activity-counter{font-size:11.5px;color:var(--gray-500);font-weight:700;}
.q-track{display:flex;gap:4px;margin-bottom:18px;}
.q-track span{flex:1;height:5px;border-radius:4px;background:var(--gray-100);}
.q-track span.done{background:var(--green-dark);}
.q-track span.current{background:var(--lemon-dark);}

.prompt-text{font-size:18px;font-weight:800;margin-bottom:16px;line-height:1.35;}
.prompt-sub{font-size:13px;color:var(--gray-500);font-weight:600;margin-top:-8px;margin-bottom:16px;}

.option-list{display:flex;flex-direction:column;gap:10px;}
.option-btn{
  background:var(--white);border:2px solid var(--gray-100);border-radius:var(--radius-md);
  padding:14px 16px;text-align:left;font-size:14.5px;font-weight:700;color:var(--navy);
  display:flex;align-items:center;gap:10px;
}
.option-btn .opt-letter{
  width:26px;height:26px;border-radius:50%;background:var(--gray-100);color:var(--navy);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;flex-shrink:0;
}
.option-btn:active{transform:scale(0.98);}
.option-btn.correct{background:#eafaf0;border-color:var(--success);}
.option-btn.correct .opt-letter{background:var(--success);color:var(--white);}
.option-btn.incorrect{background:#fdeeec;border-color:var(--danger);}
.option-btn.incorrect .opt-letter{background:var(--danger);color:var(--white);}
.option-btn.disabled{pointer-events:none;}
.option-btn.faded{opacity:.5;}

.blank-input{
  width:100%;border:2px solid var(--gray-300);border-radius:var(--radius-md);
  padding:14px 16px;font-size:16px;font-weight:700;color:var(--navy);background:var(--white);
  margin-bottom:14px;
}
.blank-input:focus{outline:none;border-color:var(--navy);}
.blank-input.correct{border-color:var(--success);background:#eafaf0;}
.blank-input.incorrect{border-color:var(--danger);background:#fdeeec;}

textarea.blank-input{resize:vertical;min-height:88px;font-weight:500;font-size:14.5px;}

/* ===== FEEDBACK ===== */
.feedback-box{
  border-radius:var(--radius-md);padding:14px 16px;margin:14px 0;font-size:14px;font-weight:700;
  display:flex;align-items:center;gap:10px;
}
.feedback-box.good{background:#eafaf0;color:var(--success);}
.feedback-box.bad{background:#fdf3e9;color:#b8721f;}
.feedback-box.neutral{background:var(--navy-soft);color:var(--navy);}
.feedback-sub{font-size:12.5px;font-weight:600;color:var(--gray-700);margin-top:4px;}

.tip-box{
  background:var(--gray-50);border:2px dashed var(--gray-300);border-radius:var(--radius-md);
  padding:14px 16px;margin:14px 0;font-size:13px;
}
.tip-box .tip-title{font-weight:800;font-size:13px;margin-bottom:6px;}
.tip-box code{background:var(--navy-soft);padding:2px 6px;border-radius:6px;font-weight:700;font-size:12.5px;}

/* ===== XP TOAST ===== */
.xp-toast{
  position:fixed;top:70px;left:50%;transform:translateX(-50%) translateY(-10px);
  background:var(--navy);color:var(--lemon);font-weight:900;font-size:16px;
  padding:10px 22px;border-radius:var(--radius-pill);z-index:200;opacity:0;
  box-shadow:var(--shadow-pop);transition:all .35s cubic-bezier(.22,1.4,.36,1);
  pointer-events:none;
}
.xp-toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* ===== MODAL ===== */
.modal-overlay{
  position:fixed;inset:0;background:rgba(9,45,90,0.55);z-index:300;
  display:flex;align-items:center;justify-content:center;padding:20px;
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.modal-overlay.show{opacity:1;pointer-events:auto;}
.modal-box{
  background:var(--white);border-radius:var(--radius-lg);padding:28px 24px;max-width:400px;width:100%;
  text-align:center;transform:scale(.9);transition:transform .3s cubic-bezier(.22,1.4,.36,1);
  box-shadow:var(--shadow-pop);max-height:86vh;overflow-y:auto;
}
.modal-overlay.show .modal-box{transform:scale(1);}
.modal-box .modal-emoji{font-size:52px;margin-bottom:6px;}
.modal-box h2{font-size:20px;}
.modal-box p{font-size:14px;color:var(--gray-700);}
.modal-xp{
  display:inline-block;background:var(--lemon);color:var(--navy);font-weight:900;
  padding:8px 18px;border-radius:var(--radius-pill);margin:12px 0;font-size:15px;
}

/* ===== BADGE GRID ===== */
.badge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;}
.badge-item{
  background:var(--white);border-radius:var(--radius-md);padding:14px 8px;text-align:center;
  box-shadow:var(--shadow-card);
}
.badge-item.locked{opacity:.35;filter:grayscale(1);}
.badge-item .badge-emoji{font-size:28px;margin-bottom:6px;}
.badge-item .badge-name{font-size:10.5px;font-weight:800;line-height:1.2;}

/* ===== STREAK FLAME ===== */
.streak-flame{font-size:16px;}

/* ===== CONFIDENCE METER ===== */
.confidence-wrap{margin-top:6px;}
.confidence-value{font-size:26px;font-weight:900;color:var(--navy);}

/* ===== CONFETTI ===== */
.confetti-piece{
  position:fixed;top:-10px;width:9px;height:14px;z-index:400;pointer-events:none;
  animation:confettiFall 2.6s ease-in forwards;
}
@keyframes confettiFall{
  0%{transform:translateY(0) rotate(0deg);opacity:1;}
  100%{transform:translateY(110vh) rotate(600deg);opacity:0;}
}

/* ===== TIMER RING ===== */
.timer-chip{
  display:inline-flex;align-items:center;gap:6px;background:var(--lemon);color:var(--navy);
  font-weight:900;font-size:13px;padding:6px 14px;border-radius:var(--radius-pill);
}

/* ===== SPEAK COMPONENT ===== */
.speak-box{
  background:var(--navy);color:var(--white);border-radius:var(--radius-lg);
  padding:22px 18px;text-align:center;margin-bottom:16px;
}
.speak-box .speak-sentence{font-size:17px;font-weight:800;margin:10px 0 16px;line-height:1.4;}
.mic-btn{
  width:66px;height:66px;border-radius:50%;background:var(--lemon);border:none;
  font-size:26px;display:flex;align-items:center;justify-content:center;margin:0 auto 10px;
  box-shadow:0 6px 18px rgba(255,245,110,0.4);
}
.mic-btn.recording{animation:pulseMic 1s infinite;}
@keyframes pulseMic{0%{box-shadow:0 0 0 0 rgba(255,245,110,.7);}70%{box-shadow:0 0 0 16px rgba(255,245,110,0);}100%{box-shadow:0 0 0 0 rgba(255,245,110,0);}}
.speak-status{font-size:12px;font-weight:700;color:var(--green);}
.heard-text{background:rgba(255,255,255,0.1);border-radius:12px;padding:10px 14px;font-size:13px;margin-top:10px;font-style:italic;}

/* ===== MATCH GRID ===== */
.match-cols{display:flex;gap:10px;}
.match-col{flex:1;display:flex;flex-direction:column;gap:8px;}
.match-item{
  background:var(--white);border:2px solid var(--gray-100);border-radius:12px;
  padding:11px 10px;font-size:13px;font-weight:700;text-align:center;
}
.match-item.selected{border-color:var(--lemon-dark);background:#fffbe0;}
.match-item.matched{border-color:var(--success);background:#eafaf0;opacity:.7;}

/* ===== ORDER BUILDER (drag substitute) ===== */
.order-pool{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.order-chip{
  background:var(--white);border:2px solid var(--gray-300);border-radius:var(--radius-pill);
  padding:9px 15px;font-size:12.5px;font-weight:700;
}
.order-chip.used{opacity:.3;pointer-events:none;}
.order-slots{display:flex;flex-direction:column;gap:8px;margin-bottom:14px;}
.order-slot{
  min-height:44px;border:2px dashed var(--gray-300);border-radius:12px;
  display:flex;align-items:center;padding:0 14px;font-size:13px;font-weight:700;color:var(--gray-500);
}
.order-slot.filled{border-style:solid;border-color:var(--navy);color:var(--navy);background:var(--navy-soft);}

/* ===== TEACHER VIEW ===== */
.teacher-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--gray-100);font-size:13px;}
.teacher-row:last-child{border-bottom:none;}
.teacher-row .t-label{color:var(--gray-500);font-weight:600;}
.teacher-row .t-value{font-weight:800;}
.mini-list{list-style:none;padding:0;margin:0;}
.mini-list li{
  font-size:12.5px;padding:8px 10px;background:var(--gray-50);border-radius:10px;margin-bottom:6px;font-weight:600;
}

/* ===== LOGO WATERMARK / FOOTER ===== */
.brand-foot{display:flex;align-items:center;justify-content:center;gap:8px;padding:20px 0 4px;opacity:.6;}
.brand-foot img{height:20px;}
.brand-foot span{font-size:10.5px;font-weight:700;color:var(--gray-500);}

/* ===== EMPTY / LOADING ===== */
.spinner{width:26px;height:26px;border:3px solid var(--gray-100);border-top-color:var(--navy);border-radius:50%;animation:spin .7s linear infinite;margin:20px auto;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ===== UTILITIES ===== */
.mt-0{margin-top:0;} .mb-0{margin-bottom:0;}
.text-center{text-align:center;}
.small{font-size:12px;color:var(--gray-500);font-weight:600;}
.flex-between{display:flex;align-items:center;justify-content:space-between;}
.gap-8{gap:8px;}
.chip{display:inline-block;background:var(--navy-soft);color:var(--navy);font-size:11px;font-weight:800;padding:4px 10px;border-radius:var(--radius-pill);}

@media (min-width:521px){
  #app{border-radius:32px;margin:16px auto;box-shadow:0 20px 60px rgba(9,45,90,0.12);min-height:calc(100vh - 32px);}
  .bottom-nav{border-radius:0 0 32px 32px;}
}