/* ===== Hà Trang · trangha.org — giao diện "app nhỏ" dễ thương, ưu tiên điện thoại ===== */
:root{
  --cream:#FFF7EC; --paper:#FFFDF9; --peach:#FFD9C7; --coral:#FF8A73; --coral-d:#EF6A52;
  --mint:#BDEBD9; --mint-d:#2FA37F; --sun:#FFE08A; --sky:#CDE7FF; --lav:#E6DCFF;
  --ink:#3B2F4A; --muted:#7B6D87; --line:rgba(59,47,74,.12);
  --r:26px; --tab-h:74px;
  --font-h:'Baloo 2','Nunito',system-ui,sans-serif; --font-b:'Nunito',system-ui,-apple-system,'Segoe UI',sans-serif;
  --safe-b:env(safe-area-inset-bottom,0px); --safe-t:env(safe-area-inset-top,0px);
}
html{font-size:17px;-webkit-text-size-adjust:100%}
html.big-text{font-size:20.5px}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
body{margin:0;font-family:var(--font-b);color:var(--ink);background:var(--cream);line-height:1.55;font-weight:600}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;touch-action:manipulation}
h1,h2,h3{font-family:var(--font-h);line-height:1.18;margin:0 0 .4em;font-weight:800}
p{margin:0 0 .8em}
em{font-style:normal;color:var(--coral-d);position:relative;white-space:nowrap}
em::after{content:"";position:absolute;left:-2%;right:-2%;bottom:-.08em;height:.32em;background:var(--sun);border-radius:99px;z-index:-1;opacity:.9}
small{font-weight:600;color:var(--muted)}
:focus-visible{outline:3px solid var(--coral);outline-offset:3px;border-radius:12px}
[hidden]{display:none!important}

/* ===== sân khấu (màn hình lớn) ===== */
.stage{min-height:100dvh;display:grid;place-items:center;
  background:
    radial-gradient(circle at 12% 18%,var(--sun) 0 70px,transparent 71px),
    radial-gradient(circle at 88% 82%,var(--mint) 0 110px,transparent 111px),
    radial-gradient(circle at 92% 12%,var(--lav) 0 60px,transparent 61px),
    radial-gradient(circle at 6% 88%,var(--peach) 0 90px,transparent 91px),
    var(--cream)}
.stage-note{display:none}
.phone{position:relative;width:100%;height:100dvh;background:var(--cream);overflow:hidden;display:flex;flex-direction:column;padding-top:var(--safe-t)}

@media (min-width:600px){
  .stage{grid-template-columns:minmax(0,300px) auto;gap:48px;justify-content:center;padding:24px}
  .stage-note{display:block;text-align:center;color:var(--muted)}
  .stage-mascot{width:150px;height:160px;animation:bob 3.2s ease-in-out infinite}
  .stage-note p{font-size:.95rem;margin-top:12px}
  .phone{width:410px;height:min(860px,calc(100dvh - 48px));border-radius:46px;border:9px solid var(--ink);box-shadow:0 22px 0 -6px rgba(59,47,74,.14),0 30px 60px rgba(59,47,74,.22)}
}
@media (min-width:600px) and (max-width:900px){.stage{grid-template-columns:auto}.stage-note{display:none}}

/* ===== thanh trên ===== */
.topbar{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;padding:12px 16px 8px;background:var(--cream);z-index:5}
.brand{display:flex;align-items:center;gap:10px;text-align:left}
.brand-mascot{width:42px;height:44px;flex:none}
.brand b{display:block;font-family:var(--font-h);font-size:1.25rem;line-height:1;font-weight:800}
.brand small{display:block;font-size:.72rem;margin-top:3px}
.a11y{display:flex;align-items:flex-end;gap:2px;height:44px;padding:0 14px;border-radius:99px;background:var(--paper);border:2.5px solid var(--ink);box-shadow:0 3px 0 var(--ink);font-family:var(--font-h);font-weight:800}
.a11y span{font-size:.85rem;line-height:1.2;padding-bottom:7px}.a11y .big{font-size:1.35rem;padding-bottom:5px}
.a11y[aria-pressed="true"]{background:var(--sun)}
.a11y:active{transform:translateY(2px);box-shadow:0 1px 0 var(--ink)}

/* ===== vùng nội dung ===== */
.screens{flex:1 1 auto;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;padding:6px 16px calc(var(--tab-h) + var(--safe-b) + 28px);scroll-behavior:smooth;outline:0}
.screen{display:none}
.screen.active{display:block;animation:rise .38s cubic-bezier(.2,.9,.3,1.2)}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes bob{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-8px) rotate(2deg)}}
@keyframes pop{0%{transform:scale(.6);opacity:0}70%{transform:scale(1.08)}100%{transform:scale(1);opacity:1}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

.sec{font-size:1.2rem;margin:26px 2px 12px}
.note{font-size:.82rem;color:var(--muted);text-align:center;margin:8px 8px 0}
.card{background:var(--paper);border-radius:var(--r);padding:18px 18px 14px;margin-top:16px;box-shadow:0 4px 0 var(--line),0 10px 26px rgba(59,47,74,.07);border:2px solid #fff}
.card h3{font-size:1.15rem}
.card.center{text-align:center}

.pill{display:inline-block;font-size:.8rem;font-weight:800;padding:4px 12px;border-radius:99px;border:2px solid var(--ink);margin-bottom:10px}
.pill-sun{background:var(--sun)}.pill-mint{background:var(--mint)}.pill-sky{background:var(--sky)}

/* ===== buttons ===== */
.btn{display:flex;align-items:center;justify-content:center;gap:8px;min-height:54px;padding:12px 20px;border-radius:99px;border:2.5px solid var(--ink);font-family:var(--font-h);font-weight:800;font-size:1.05rem;text-align:center;line-height:1.2;box-shadow:0 5px 0 var(--ink);transition:transform .12s,box-shadow .12s;width:100%}
.btn:active{transform:translateY(4px);box-shadow:0 1px 0 var(--ink)}
.btn-coral{background:var(--coral)}.btn-mint{background:var(--mint)}.btn-soft{background:var(--paper)}.btn-ink{background:var(--ink);color:#fff}
.btn.big{min-height:60px;margin-top:12px}

/* ===== HOME ===== */
.hero{position:relative;margin-top:4px;background:linear-gradient(160deg,var(--peach),#FFE9D8 60%,var(--sun));border-radius:32px;padding:20px 18px 18px;border:2.5px solid var(--ink);box-shadow:0 6px 0 var(--ink);overflow:hidden}
.hero h1{font-size:1.75rem;margin:6px 0 10px}
.hero p{font-size:.98rem;margin:0;max-width:20.5em}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.hero::before{width:120px;height:120px;right:-30px;top:-36px;background:rgba(255,255,255,.45)}
.hero::after{width:70px;height:70px;left:-20px;bottom:-26px;background:rgba(255,255,255,.4)}
.hero-art{position:absolute;right:8px;bottom:6px;width:136px;height:186px;pointer-events:none}
.hero-text{position:relative;z-index:1}
.hero-text p{max-width:56%}
.hero-mascot{position:absolute;right:4px;bottom:0;width:112px;height:121px;animation:bob 3.4s ease-in-out infinite;transform-origin:50% 90%}
.bubble{position:absolute;font-family:var(--font-h);font-weight:800;font-size:.78rem;line-height:1.5;background:#fff;border:2px solid var(--ink);border-radius:99px;padding:0 9px;animation:float 3s ease-in-out infinite}
.b1{left:0;top:0;background:var(--mint)}.b2{right:0;top:22px;animation-delay:.5s;background:var(--sky)}.b3{left:14px;top:46px;animation-delay:1s;background:var(--lav)}

.cta{display:flex;align-items:center;gap:14px;width:100%;margin-top:22px;padding:14px 16px;border-radius:30px;background:var(--coral);border:2.5px solid var(--ink);box-shadow:0 6px 0 var(--ink);text-align:left;transition:transform .12s,box-shadow .12s}
.cta:active{transform:translateY(5px);box-shadow:0 1px 0 var(--ink)}
.cta-ico{font-size:2.1rem;background:#fff;border-radius:20px;width:58px;height:58px;display:grid;place-items:center;border:2px solid var(--ink);flex:none}
.cta-txt{flex:1}.cta-txt b{display:block;font-family:var(--font-h);font-size:1.25rem;line-height:1.15}
.cta-txt small{color:var(--ink);opacity:.8;font-size:.85rem}
.cta-arrow{font-size:1.5rem;font-weight:800}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}
.tile{display:flex;flex-direction:column;align-items:flex-start;gap:2px;min-height:118px;padding:14px;border-radius:24px;border:2.5px solid var(--ink);box-shadow:0 5px 0 var(--ink);text-align:left;transition:transform .12s,box-shadow .12s}
.tile:active{transform:translateY(4px);box-shadow:0 1px 0 var(--ink)}
.tile i{font-style:normal;font-size:1.9rem;line-height:1;margin-bottom:6px}
.tile b{font-family:var(--font-h);font-size:1.05rem;line-height:1.15}
.tile small{color:var(--ink);opacity:.75;font-size:.8rem}
.t-mint{background:var(--mint)}.t-sky{background:var(--sky)}.t-peach{background:var(--peach)}.t-lav{background:var(--lav)}

.snap{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;margin:0 -16px;padding:4px 16px 14px;scrollbar-width:none}
.snap::-webkit-scrollbar{display:none}
.mini{flex:0 0 74%;scroll-snap-align:center;border-radius:24px;padding:16px;border:2.5px solid var(--ink);box-shadow:0 5px 0 var(--ink)}
.mini i{font-style:normal;font-size:2rem;display:block}.mini b{font-family:var(--font-h);font-size:1.15rem;display:block;margin:4px 0}
.mini p{font-size:.92rem;margin:0}
.m1{background:var(--sun)}.m2{background:var(--sky)}.m3{background:var(--peach)}
.about-prog{background:linear-gradient(180deg,#fff,#F3FBF7)}
.about-prog p{font-size:.95rem}
.foot{margin:22px 4px 0;font-size:.8rem;color:var(--muted);text-align:center}

/* ===== PLAY ===== */
.play-head{text-align:center;padding:8px 4px 0}
.play-head h2{font-size:1.6rem;margin-bottom:2px}
.play-head p{color:var(--muted);font-size:.92rem;margin-bottom:10px}
.dots{display:flex;justify-content:center;gap:8px;min-height:16px}
.dots i{width:14px;height:14px;border-radius:50%;background:#fff;border:2.5px solid var(--ink);transition:.25s}
.dots i.on{background:var(--sun);transform:scale(1.25)}.dots i.ok{background:var(--mint-d)}.dots i.no{background:var(--coral)}
.intro-mascot{width:120px;height:130px;animation:bob 3s ease-in-out infinite}
.scene{text-align:left}
.scene-emoji{font-size:2.6rem;line-height:1;margin-bottom:8px}
.scene-text{font-size:1.08rem;margin:0 0 6px;font-weight:700}
.answers{display:grid;gap:12px;margin-top:16px}
.ans{display:flex;gap:12px;align-items:flex-start;width:100%;text-align:left;padding:14px 16px;min-height:62px;border-radius:22px;background:var(--paper);border:2.5px solid var(--ink);box-shadow:0 5px 0 var(--ink);font-weight:700;font-size:1rem;line-height:1.4;transition:transform .12s,box-shadow .12s,background .2s}
.ans .k{flex:none;width:30px;height:30px;border-radius:50%;background:var(--sky);border:2px solid var(--ink);display:grid;place-items:center;font-family:var(--font-h);font-weight:800;font-size:.95rem}
.ans:active:not(:disabled){transform:translateY(4px);box-shadow:0 1px 0 var(--ink)}
.ans.right{background:var(--mint);animation:pop .35s}.ans.right .k{background:var(--mint-d);color:#fff}
.ans.wrong{background:#FFD3CB}.ans.wrong .k{background:var(--coral);color:#fff}
.ans:disabled{cursor:default}.ans:disabled:not(.right):not(.wrong){opacity:.55}
.feedback{margin-top:18px;padding:16px;border-radius:24px;background:#fff;border:2.5px dashed var(--ink);animation:rise .3s}
.fb-head{font-family:var(--font-h);font-weight:800;font-size:1.25rem;margin-bottom:4px}
.feedback p{font-size:.98rem}
.stars{font-size:2.2rem;letter-spacing:6px;margin-bottom:4px}
.stars span{display:inline-block;animation:pop .5s both}
.end-actions{display:grid;gap:12px;margin-top:14px}
.confetti{position:fixed;top:-20px;font-size:1.4rem;pointer-events:none;z-index:50;animation:fall 2.4s linear forwards}
@keyframes fall{to{transform:translateY(105vh) rotate(540deg);opacity:.9}}

/* ===== CLASS ===== */
.class-hero{padding:6px 4px 0}
.class-hero h2{font-size:1.65rem;margin:4px 0 8px}
.class-hero p{font-size:.98rem}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:6px}
.fact{border-radius:22px;padding:12px 6px;text-align:center;border:2.5px solid var(--ink);box-shadow:0 4px 0 var(--ink)}
.fact b{display:block;font-family:var(--font-h);font-size:1.75rem;line-height:1}.fact small{display:block;color:var(--ink);opacity:.75;font-size:.76rem;line-height:1.2;margin-top:4px}
.f1{background:var(--sun)}.f2{background:var(--mint)}.f3{background:var(--lav)}
.timeline{list-style:none;margin:0;padding:0 0 0 4px;position:relative}
.timeline::before{content:"";position:absolute;left:30px;top:20px;bottom:20px;border-left:3px dashed rgba(59,47,74,.3)}
.timeline li{position:relative;display:flex;gap:14px;align-items:flex-start;margin-bottom:14px}
.t-min{flex:none;width:54px;height:54px;border-radius:50%;background:var(--sun);border:2.5px solid var(--ink);display:grid;place-items:center;font-family:var(--font-h);font-weight:800;position:relative;z-index:1}
.timeline li:nth-child(2) .t-min{background:var(--mint)}.timeline li:nth-child(3) .t-min{background:var(--peach)}
.timeline li:nth-child(4) .t-min{background:var(--sky)}.timeline li:nth-child(5) .t-min{background:var(--lav)}
.timeline b{display:block;font-family:var(--font-h);font-size:1.05rem;line-height:1.2;margin-top:4px}.timeline small{display:block;margin-top:2px;line-height:1.35}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{padding:8px 14px;border-radius:99px;border:2.5px solid var(--ink);font-weight:800;font-size:.9rem}
.c1{background:var(--peach)}.c2{background:var(--sun)}.c3{background:var(--sky)}.c4{background:var(--mint)}.c5{background:var(--lav)}.c6{background:#FFD3E1}
.promise ul{margin:6px 0 4px;padding-left:1.2em}.promise li{margin-bottom:6px;font-size:.95rem}
.cta-pair{margin-top:10px}

/* ===== ABOUT ===== */
.about-card{text-align:center;margin-top:8px;padding:22px 16px 18px;border-radius:32px;background:linear-gradient(170deg,var(--sky),var(--lav));border:2.5px solid var(--ink);box-shadow:0 6px 0 var(--ink)}
.avatar-wrap{position:relative;width:132px;height:132px;margin:0 auto 10px}
.avatar-wrap img,.avatar-fallback{width:132px;height:132px;border-radius:50%;object-fit:cover;border:3.5px solid var(--ink);background:#fff;padding:0}
.avatar-fallback{padding:14px 12px 8px}
.avatar-badge{position:absolute;right:-4px;bottom:2px;width:38px;height:38px;display:grid;place-items:center;font-size:1.2rem;background:var(--sun);border:2.5px solid var(--ink);border-radius:50%}
.about-card h2{font-size:1.6rem;margin-bottom:2px}.role{margin:0;font-size:1rem}.role small{color:var(--ink);opacity:.75}
.values{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px}
.values div{background:var(--cream);border-radius:20px;padding:12px;border:2px solid var(--line)}
.values i{font-style:normal;font-size:1.6rem;display:block}.values b{font-family:var(--font-h);display:block;line-height:1.2;margin:2px 0}.values small{display:block;line-height:1.3;font-size:.8rem}
.contact-list{display:grid;gap:10px;margin-top:8px}
.contact-list a{display:flex;align-items:center;gap:10px;min-height:52px;padding:10px 14px;border-radius:99px;border:2.5px solid var(--ink);background:var(--mint);font-weight:800;text-decoration:none;color:var(--ink);box-shadow:0 4px 0 var(--ink)}

/* ===== TAB BAR ===== */
.tabbar{position:absolute;left:0;right:0;bottom:0;z-index:10;display:grid;grid-template-columns:repeat(4,1fr);gap:4px;padding:8px 10px calc(8px + var(--safe-b));background:rgba(255,253,249,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:2.5px solid var(--ink);border-radius:26px 26px 0 0}
.tabbar button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;min-height:58px;border-radius:20px;font-weight:800;font-size:12px;white-space:nowrap;color:var(--muted);transition:.2s}
html.big-text .tabbar button{font-size:13px}
html.big-text .hero-art{display:none}
html.big-text .hero-text p{max-width:none}
.tabbar i{font-style:normal;font-size:1.5rem;line-height:1;transition:transform .25s cubic-bezier(.3,1.6,.5,1);filter:grayscale(.6) opacity(.75)}
.tabbar button.active{background:var(--sun);color:var(--ink);box-shadow:inset 0 0 0 2.5px var(--ink)}
.tabbar button.active i{transform:translateY(-2px) scale(1.18);filter:none}
.tabbar button:active{transform:scale(.95)}

/* ===== BOTTOM SHEET ===== */
.scrim{position:absolute;inset:0;background:rgba(59,47,74,.45);z-index:20;animation:fade .25s}
@keyframes fade{from{opacity:0}to{opacity:1}}
.sheet{position:absolute;left:0;right:0;bottom:0;z-index:30;max-height:92%;display:flex;flex-direction:column;background:var(--cream);border-radius:32px 32px 0 0;border:2.5px solid var(--ink);border-bottom:0;box-shadow:0 -10px 40px rgba(59,47,74,.25);animation:slide .38s cubic-bezier(.2,.9,.3,1.1)}
@keyframes slide{from{transform:translateY(100%)}to{transform:none}}
.sheet-grab{width:48px;height:6px;border-radius:9px;background:rgba(59,47,74,.25);margin:10px auto 0;flex:none}
.sheet-close{position:absolute;right:12px;top:12px;width:44px;height:44px;border-radius:50%;background:#fff;border:2.5px solid var(--ink);font-weight:800;font-size:1.05rem;z-index:2}
.sheet-body{overflow-y:auto;padding:14px 18px calc(28px + var(--safe-b));overscroll-behavior:contain}
.sheet-body h2{font-size:1.5rem;padding-right:50px}
.lead{color:var(--muted);font-size:.95rem}
.steps{display:grid;gap:12px;margin:12px 0}
.step{display:flex;gap:14px;align-items:flex-start;padding:14px;border-radius:24px;border:2.5px solid var(--ink);box-shadow:0 4px 0 var(--ink)}
.step span{flex:none;width:44px;height:44px;border-radius:50%;background:#fff;border:2.5px solid var(--ink);display:grid;place-items:center;font-family:var(--font-h);font-weight:800;font-size:1.4rem}
.step b{font-family:var(--font-h);font-size:1.15rem}.step p{margin:2px 0 0;font-size:.93rem}
.s1{background:#FFD3CB}.s2{background:var(--sun)}.s3{background:var(--mint)}
.tip{background:var(--sky)}.tip p{margin:4px 0 0;font-size:.93rem}

/* ===== FORM ===== */
.form{display:grid;gap:14px;margin-top:10px}
.field{display:grid;gap:6px;border:0;padding:0;margin:0;min-width:0}
.field>span,.field legend{font-weight:800;font-size:.92rem;padding:0}
.field input:not([type=checkbox]),.field textarea{width:100%;min-height:54px;padding:12px 16px;border-radius:20px;border:2.5px solid var(--ink);background:#fff;font-weight:600;font-size:1rem;outline:0;transition:box-shadow .15s}
.field textarea{resize:vertical;border-radius:20px}
.field input:focus,.field textarea:focus{box-shadow:0 0 0 4px var(--sun)}
.field input.bad,.field textarea.bad{border-color:var(--coral-d);background:#FFF1EE}
.chipset{display:flex;flex-wrap:wrap;gap:8px}
.chipset label{cursor:pointer}
.chipset input{position:absolute;opacity:0;pointer-events:none}
.chipset span{display:inline-flex;align-items:center;min-height:46px;padding:8px 14px;border-radius:99px;border:2.5px solid var(--ink);background:#fff;font-weight:800;font-size:.92rem;transition:.15s}
.chipset input:checked+span{background:var(--sun);box-shadow:0 3px 0 var(--ink);transform:translateY(-2px)}
.chipset input:focus-visible+span{outline:3px solid var(--coral);outline-offset:2px}
.consent{display:flex;gap:12px;align-items:flex-start;font-size:.92rem;font-weight:700;line-height:1.4;cursor:pointer}
.consent input{flex:none;width:28px;height:28px;margin:0;accent-color:var(--mint-d)}
.error{margin:0;padding:10px 14px;border-radius:16px;background:#FFE3DE;border:2px solid var(--coral-d);font-weight:800;font-size:.9rem}
.done{text-align:center;padding-top:6px}
.done .tick{font-size:3rem;animation:pop .5s both}
.done pre{text-align:left;white-space:pre-wrap;word-break:break-word;background:#fff;border:2px dashed var(--ink);border-radius:20px;padding:14px;font:600 .88rem/1.5 var(--font-b);max-height:230px;overflow:auto}
.done .btn{margin-top:10px}

.toast{position:absolute;left:50%;bottom:calc(var(--tab-h) + var(--safe-b) + 20px);transform:translateX(-50%);z-index:60;background:var(--ink);color:#fff;font-weight:800;font-size:.92rem;padding:12px 20px;border-radius:99px;animation:rise .25s;max-width:88%;text-align:center}

@media (max-width:360px){html{font-size:16px}.hero-text p{max-width:58%}.hero h1{font-size:1.55rem}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}