/* ============================================================
   Kids Handwriting Practice — design system
   Theme: "Worksheet & Crayon" — a corkboard of hand-placed
   flashcards over warm notebook paper.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Baloo+2:wght@500;600;700;800&family=Baloo+Bhaijaan+2&family=Hind:wght@400;500;600;700&family=Nunito:wght@400;600;700;800&display=swap');

:root{
    /* palette */
    --paper:      #FFF8EC;
    --paper-deep: #FBF0DC;
    --rule:       #E4D6B8;
    --ink:        #2B2E4A;
    --ink-soft:   #6B6E8C;

    --sky:        #4D96FF;
    --sky-deep:   #2F76E0;
    --leaf:       #3FC98A;
    --leaf-deep:  #23A56D;
    --sun:        #FFB627;
    --sun-deep:   #E89A0C;
    --coral:      #FF6B6B;
    --coral-deep: #E24C4C;
    --grape:      #9C6ADE;
    --grape-deep: #7E4BC4;
    --saffron:    #FF7A3D; /* used for the Hindi accent, echoes the tricolour */

    --card-radius: 22px;
    --pill-radius: 999px;
    --shadow-sm: 0 4px 10px rgba(43,46,74,.08);
    --shadow-md: 0 14px 30px rgba(43,46,74,.14);
    --shadow-lg: 0 22px 46px rgba(43,46,74,.18);

    --font-display: 'Baloo 2', 'Baloo Bhaijaan 2', sans-serif;
    --font-display-hi: 'Baloo Bhaijaan 2', 'Baloo 2', sans-serif;
    --font-body: 'Nunito', sans-serif;
    --font-body-hi: 'Hind', 'Nunito', sans-serif;
}

*{ margin:0; padding:0; box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
    font-family: var(--font-body);
    color: var(--ink);
    background:
        repeating-linear-gradient(
            var(--paper) 0px,
            var(--paper) 37px,
            var(--rule) 38px
        );
    background-color: var(--paper);
    min-height:100vh;
    padding-bottom:40px;
}

/* faint red margin line, like ruled paper — purely decorative */
body::before{
    content:"";
    position:fixed;
    top:0; bottom:0; left:56px;
    width:2px;
    background:rgba(255,107,107,.18);
    z-index:0;
    pointer-events:none;
}

a{ color:inherit; }

::selection{ background:var(--sun); color:var(--ink); }

:focus-visible{
    outline:3px solid var(--sky);
    outline-offset:3px;
    border-radius:8px;
}

@media (prefers-reduced-motion: reduce){
    *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

/* ============================================================
   HOME PAGE
   ============================================================ */

.hero{
    position:relative;
    width:92%;
    max-width:1080px;
    margin:36px auto 10px;
    text-align:center;
    z-index:1;
}

.hero-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:white;
    border:2px solid var(--rule);
    padding:6px 18px;
    border-radius:var(--pill-radius);
    font-weight:700;
    font-size:14px;
    color:var(--ink-soft);
    box-shadow:var(--shadow-sm);
    transform:rotate(-2deg);
}

.hero h1{
    font-family:var(--font-display);
    font-weight:800;
    font-size:clamp(32px,6vw,52px);
    margin:18px 0 6px;
    color:var(--ink);
    letter-spacing:.5px;
}

.hero h1 .pencil{
    display:inline-block;
    animation:wiggle 2.4s ease-in-out infinite;
    transform-origin:70% 70%;
}

@keyframes wiggle{
    0%,100%{ transform:rotate(0deg); }
    25%{ transform:rotate(-12deg); }
    75%{ transform:rotate(10deg); }
}

.hero p.lead{
    color:var(--ink-soft);
    font-size:17px;
    font-weight:600;
    max-width:520px;
    margin:0 auto;
}

.section-title{
    display:flex;
    align-items:center;
    gap:14px;
    width:92%;
    max-width:1080px;
    margin:38px auto 16px;
    z-index:1;
    position:relative;
}

.section-title h2{
    font-family:var(--font-display);
    font-size:22px;
    color:var(--ink);
    white-space:nowrap;
}

.section-title.hindi h2{ font-family:var(--font-display-hi); }

.section-title .line{
    flex:1;
    height:3px;
    background:repeating-linear-gradient(90deg, var(--rule) 0 10px, transparent 10px 16px);
    border-radius:3px;
}

.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
    gap:22px;
    width:92%;
    max-width:1080px;
    margin:0 auto 10px;
    position:relative;
    z-index:1;
}

.card{
    position:relative;
    text-decoration:none;
    color:var(--ink);
    background:#fff;
    padding:28px 22px 24px;
    border-radius:var(--card-radius);
    box-shadow:var(--shadow-md);
    border-bottom:6px solid var(--sky);
    transition:transform .25s cubic-bezier(.34,1.56,.64,1), box-shadow .25s ease, border-color .25s ease;
}

/* hand-placed corkboard feel: alternate a gentle tilt */
.cards .card:nth-child(4n+1){ transform:rotate(-1.4deg); }
.cards .card:nth-child(4n+2){ transform:rotate(1.1deg); }
.cards .card:nth-child(4n+3){ transform:rotate(-0.8deg); }
.cards .card:nth-child(4n+4){ transform:rotate(1.6deg); }

.card::before{
    /* pushpin */
    content:"";
    position:absolute;
    top:-9px; left:50%;
    width:16px; height:16px;
    margin-left:-8px;
    border-radius:50%;
    background:radial-gradient(circle at 35% 30%, #fff, var(--coral) 60%, var(--coral-deep));
    box-shadow:var(--shadow-sm);
}

.card:hover{
    transform:rotate(0deg) translateY(-8px) scale(1.03);
    box-shadow:var(--shadow-lg);
}

.card .emoji{
    font-size:56px;
    margin-bottom:14px;
    line-height:1;
}

.card h2{
    font-family:var(--font-display);
    font-size:21px;
    margin-bottom:4px;
}

.card p{
    color:var(--ink-soft);
    font-weight:600;
    font-size:14px;
}

.card.alphabet{ border-color:var(--leaf); }
.card.hindi{ border-color:var(--saffron); }
.card.numbers{ border-color:var(--sun); }
.card.patterns{ border-color:var(--grape); }

.card .go{
    position:absolute;
    right:18px; bottom:16px;
    font-size:13px;
    font-weight:800;
    color:var(--sky-deep);
    opacity:0;
    transform:translateX(-6px);
    transition:opacity .2s ease, transform .2s ease;
}
.card:hover .go{ opacity:1; transform:translateX(0); }

/* ============================================================
   PRACTICE PAGE
   ============================================================ */

.practice-container{
    width:94%;
    max-width:980px;
    margin:26px auto;
    text-align:center;
    position:relative;
    z-index:1;
}

.practice-container > h1{
    font-family:var(--font-display);
    font-size:clamp(24px,4.2vw,32px);
    margin-bottom:18px;
}
.practice-container.lang-hi > h1{ font-family:var(--font-display-hi); }

.toolbar{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:12px;
    flex-wrap:wrap;
    margin-bottom:18px;
}

.toolbar-left, .toolbar-right{
    display:flex;
    align-items:center;
    gap:10px;
    flex-wrap:wrap;
}

.home-btn{
    display:inline-flex;
    align-items:center;
    gap:6px;
    background:#fff;
    border:2px solid var(--rule);
    color:var(--ink);
    padding:10px 18px;
    border-radius:var(--pill-radius);
    font-weight:700;
    font-family:var(--font-body);
    font-size:15px;
    cursor:pointer;
    text-decoration:none;
    box-shadow:var(--shadow-sm);
    transition:transform .15s ease, box-shadow .15s ease;
}
.home-btn:hover{ transform:translateY(-2px); box-shadow:var(--shadow-md); }

.progress{
    font-family:var(--font-display);
    font-size:16px;
    font-weight:700;
    background:#fff;
    border:2px solid var(--rule);
    padding:8px 18px;
    border-radius:var(--pill-radius);
    box-shadow:var(--shadow-sm);
}

.progress .current-glyph{
    color:var(--sky-deep);
    margin-right:4px;
}

.streak{
    display:inline-flex;
    align-items:center;
    gap:6px;
    background:linear-gradient(135deg, var(--sun), var(--sun-deep));
    color:#fff;
    padding:8px 16px;
    border-radius:var(--pill-radius);
    font-weight:800;
    font-size:14px;
    box-shadow:var(--shadow-sm);
}

.pattern-name{
    font-family:var(--font-display);
    background:#fff;
    border:2px solid var(--rule);
    padding:8px 18px;
    border-radius:var(--pill-radius);
    font-size:16px;
    box-shadow:var(--shadow-sm);
}

/* the tracing surface */
.canvas-wrap{
    position:relative;
    display:inline-block;
    border-radius:28px;
    padding:10px;
    background:#fff;
    box-shadow:var(--shadow-lg);
}

canvas{
    display:block;
    max-width:100%;
    height:auto;
    border:3px dashed var(--leaf);
    border-radius:20px;
    background:
        repeating-linear-gradient(#fff 0 43px, #eef4ff 43px 44px);
    touch-action:none;
    cursor:crosshair;
    transition:border-color .3s ease;
}

.canvas-wrap.success canvas{ border-color:var(--sun); }

.trace-area{
    position:relative;
    width:500px;
    max-width:100%;
    aspect-ratio: 5 / 4;
    margin:auto;
}

.trace-area img{
    position:absolute;
    width:100%;
    height:100%;
    left:0; top:0;
    opacity:.55;
}

.trace-area canvas{
    position:absolute;
    left:0; top:0;
    width:100%;
    height:100%;
    background:transparent;
}

.trace-area.success canvas{ border-color:var(--sun); }

.buttons{
    margin-top:22px;
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:12px;
}

.buttons button{
    padding:13px 24px;
    border:none;
    border-radius:var(--pill-radius);
    font-family:var(--font-body);
    font-size:16px;
    font-weight:800;
    cursor:pointer;
    color:white;
    box-shadow:var(--shadow-sm);
    transition:transform .15s cubic-bezier(.34,1.56,.64,1), box-shadow .15s ease, filter .15s ease;
}

.buttons button:hover{ transform:translateY(-3px); box-shadow:var(--shadow-md); filter:brightness(1.05); }
.buttons button:active{ transform:translateY(0) scale(.96); }

.prev{ background:linear-gradient(135deg, var(--sky), var(--sky-deep)); }
.next{ background:linear-gradient(135deg, var(--leaf), var(--leaf-deep)); }
.clear{ background:linear-gradient(135deg, var(--coral), var(--coral-deep)); }
.sound{ background:linear-gradient(135deg, var(--sun), var(--sun-deep)); }
.check{ background:linear-gradient(135deg, var(--grape), var(--grape-deep)); }

.result{
    font-family:var(--font-display);
    font-size:26px;
    font-weight:800;
    color:var(--leaf-deep);
    margin-top:22px;
    min-height:34px;
}

.result.try{ color:var(--coral-deep); }

.stars{
    font-size:40px;
    color:var(--sun);
    margin-top:8px;
    letter-spacing:4px;
    min-height:48px;
}

.stars.pop span{
    display:inline-block;
    animation:pop .45s cubic-bezier(.34,1.56,.64,1) backwards;
}
.stars.pop span:nth-child(1){ animation-delay:.02s; }
.stars.pop span:nth-child(2){ animation-delay:.09s; }
.stars.pop span:nth-child(3){ animation-delay:.16s; }
.stars.pop span:nth-child(4){ animation-delay:.23s; }
.stars.pop span:nth-child(5){ animation-delay:.30s; }

@keyframes pop{
    0%{ transform:scale(0) rotate(-30deg); opacity:0; }
    70%{ transform:scale(1.25) rotate(8deg); opacity:1; }
    100%{ transform:scale(1) rotate(0deg); }
}

/* confetti burst */
.confetti-piece{
    position:fixed;
    top:-20px;
    width:10px; height:14px;
    border-radius:2px;
    pointer-events:none;
    z-index:999;
    animation:fall linear forwards;
}
@keyframes fall{
    to{ transform:translateY(110vh) rotate(540deg); opacity:.4; }
}

footer.credit{
    text-align:center;
    color:var(--ink-soft);
    font-size:13px;
    font-weight:600;
    margin-top:50px;
    opacity:.7;
}

@media (max-width:640px){
    .toolbar{ justify-content:center; }
    .buttons button{ flex:1 1 auto; font-size:14px; padding:12px 16px; }
}