body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #0f172a;
    color: #f8fafc;
    font-family: Tahoma, Geneva, Verdana, sans-serif;
    overflow: hidden;
    position: relative;
}

/* افکت spotlight زیر موس */
.cursor-light {
    position: fixed;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, rgba(56, 189, 248, 0.05) 30%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 1;
    transition: opacity 0.3s ease;
}

.container {
    text-align: center;
    padding: 20px;
    max-width: 90%;
    z-index: 2;
    position: relative;
}

/* ======= مخزن حروف ======= */
/* ======= مخزن حروف ======= */
.letter-pile {
    position: absolute;
    left: -110px; /* نزدیک‌تر به وسط */
    top: 50%;
    transform: translateY(-50%) scale(0.9); /* کمی کوچک‌تر */
    width: 70px;
    height: 90px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 2px;
}



.pile-letter {
    font-size: 1.5rem;
    color: #38bdf8;
    opacity: 0.6;
    transform: rotate(var(--pile-rotate, 0deg));
    transition: all 0.3s ease;
}

.pile-letter:nth-child(1) { --pile-rotate: 15deg; }
.pile-letter:nth-child(2) { --pile-rotate: -20deg; }
.pile-letter:nth-child(3) { --pile-rotate: 25deg; }
.pile-letter:nth-child(4) { --pile-rotate: -10deg; }
.pile-letter:nth-child(5) { --pile-rotate: 30deg; }
.pile-letter:nth-child(6) { --pile-rotate: -25deg; }
.pile-letter:nth-child(7) { --pile-rotate: 15deg; }
.pile-letter:nth-child(8) { --pile-rotate: -30deg; }
.pile-letter:nth-child(9) { --pile-rotate: 20deg; }
.pile-letter:nth-child(10) { --pile-rotate: -15deg; }
.pile-letter:nth-child(11) { --pile-rotate: 25deg; }
.pile-letter:nth-child(12) { --pile-rotate: -20deg; }
.pile-letter:nth-child(13) { --pile-rotate: 10deg; }

.pile-letter.taken {
    opacity: 0;
    transform: scale(0);
}

/* ======= جای حروف ======= */
.title-wrapper {
    position: relative;
    display: inline-block;
    direction: ltr;
}

h1 {
    font-size: 2.5rem;
    margin: 0;
    letter-spacing: -1px;
    color: #38bdf8;
}



/* اسلات خالی برای حروف */
.letter-slot {
    display: inline-block;
    min-width: 0.6em;
    min-height: 1em;
    opacity: 0;
    transition: all 0.4s ease;
}

.letter-slot.filled {
    opacity: 1;
    background: linear-gradient(to right, #38bdf8, #818cf8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.letter-slot.fixed {
    filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.4));
}

/* ======= کارگر با جزئیات ======= */
.worker-container {
    position: absolute;
    bottom: -70px;
    left: -110px;
    width: calc(100% + 110px);
    height: 90px;
    pointer-events: none;
    z-index: 10;
    transition: left 1.2s ease-in-out; /* حرکت نرم */
}

.worker {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 45px;
    height: 70px;
    transition: transform 0.3s ease; /* برای چرخش نرم */
}

/* چرخش کاراکتر به چپ */
.worker.flipped {
    transform: scaleX(-1);
}

.worker.hidden {
    opacity: 0;
    transition: opacity 0.5s ease;
}

/* ===== کلاه ایمنی ===== */
.worker-helmet {
    position: absolute;
    bottom: 52px;
    left: 8px;
    width: 34px;
    height: 18px;
    background: linear-gradient(to bottom, #fde047, #facc15, #eab308);
    border-radius: 20px 20px 5px 5px;
    box-shadow: 
        inset 0 5px 10px rgba(255,255,255,0.4),
        0 2px 5px rgba(0,0,0,0.2);
    animation: headBob 0.4s ease-in-out infinite alternate;
}

/* نوار کلاه */
.worker-helmet::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: #1e293b;
    border-radius: 0 0 3px 3px;
}

/* چراغ کلاه */
.worker-helmet::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 6px;
    background: radial-gradient(circle, #fef9c3, #fef08a);
    border-radius: 3px;
    box-shadow: 0 0 8px #fef08a;
}

@keyframes headBob {
    from { transform: translateY(0); }
    to { transform: translateY(-2px); }
}

/* ===== سر و صورت ===== */
.worker-head {
    position: absolute;
    bottom: 38px;
    left: 12px;
    width: 26px;
    height: 22px;
    background: linear-gradient(to bottom, #fef3c7, #fde68a);
    border-radius: 12px 12px 8px 8px;
    animation: headBob 0.4s ease-in-out infinite alternate;
}

/* چشم‌ها */
.worker-eye {
    position: absolute;
    top: 6px;
    width: 6px;
    height: 6px;
    background: #1e293b;
    border-radius: 50%;
}

.worker-eye.left { left: 5px; }
.worker-eye.right { right: 5px; }

/* مردمک چشم */
.worker-eye::after {
    content: '';
    position: absolute;
    top: 1px;
    left: 1px;
    width: 2px;
    height: 2px;
    background: white;
    border-radius: 50%;
}

/* لبخند */
.worker-smile {
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 10px;
    height: 5px;
    border: 2px solid #92400e;
    border-top: none;
    border-radius: 0 0 10px 10px;
}

/* ===== بدنه و لباس ===== */
.worker-body {
    position: absolute;
    bottom: 15px;
    left: 10px;
    width: 30px;
    height: 28px;
    background: linear-gradient(135deg, #f97316, #ea580c);
    border-radius: 8px 8px 5px 5px;
    box-shadow: 
        inset 2px 0 5px rgba(255,255,255,0.2),
        2px 2px 5px rgba(0,0,0,0.2);
    animation: bodyBob 0.4s ease-in-out infinite alternate;
}

/* یقه لباس */
.worker-body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 8px;
    background: #1e3a8a;
    border-radius: 0 0 6px 6px;
}

/* نوار بازتابنده روی لباس */
.worker-body::after {
    content: '';
    position: absolute;
    top: 10px;
    left: 2px;
    right: 2px;
    height: 4px;
    background: linear-gradient(90deg, #fef08a, #fde047, #fef08a);
    border-radius: 2px;
}

/* کمربند ابزار */
.worker-belt {
    position: absolute;
    bottom: 5px;
    left: -2px;
    width: 34px;
    height: 6px;
    background: #78350f;
    border-radius: 2px;
}

.worker-belt::before {
    content: '';
    position: absolute;
    top: 1px;
    left: 5px;
    width: 5px;
    height: 4px;
    background: #fbbf24;
    border-radius: 1px;
}

.worker-belt::after {
    content: '';
    position: absolute;
    top: 1px;
    right: 5px;
    width: 5px;
    height: 4px;
    background: #64748b;
    border-radius: 1px;
}

@keyframes bodyBob {
    from { transform: translateY(0); }
    to { transform: translateY(-2px); }
}

/* ===== دست‌ها ===== */
.worker-arm {
    position: absolute;
    bottom: 22px;
    width: 8px;
    height: 22px;
    background: linear-gradient(to bottom, #f97316, #ea580c);
    border-radius: 4px;
    transform-origin: top center;
    transition: transform 0.3s ease;
}

.worker-arm.left { left: 2px; }
.worker-arm.right { right: 2px; }

/* دستکش‌ها */
.worker-hand {
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 10px;
    height: 8px;
    background: linear-gradient(to bottom, #fbbf24, #f59e0b);
    border-radius: 3px 3px 5px 5px;
}

/* انگشت‌ها */
.worker-hand::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1px;
    width: 2px;
    height: 3px;
    background: #fbbf24;
    border-radius: 1px;
    box-shadow: 3px 0 0 #fbbf24, 6px 0 0 #fbbf24;
}

/* ===== پاها ===== */
.worker-leg {
    position: absolute;
    bottom: 5px;
    width: 10px;
    height: 15px;
    background: #1e3a8a;
    border-radius: 3px 3px 0 0;
}

.worker-leg.left { left: 12px; }
.worker-leg.right { right: 12px; }

/* کفش‌های ایمنی */
.worker-shoe {
    position: absolute;
    bottom: -6px;
    left: -2px;
    width: 14px;
    height: 8px;
    background: linear-gradient(to bottom, #1e293b, #0f172a);
    border-radius: 3px 8px 3px 3px;
}

/* نوک کفش */
.worker-shoe::before {
    content: '';
    position: absolute;
    top: 2px;
    right: 0;
    width: 5px;
    height: 4px;
    background: #334155;
    border-radius: 0 3px 3px 0;
}

/* حرف تو دست */
.carried-letter {
    position: absolute;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.8rem;
    font-weight: bold;
    color: #38bdf8;
    opacity: 0;
    transition: all 0.3s ease;
    text-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.carried-letter.visible {
    opacity: 1;
}

.carried-letter.lifting {
    top: -15px;
    transform: translateX(-50%) scale(1.1);
}

/* ===== انیمیشن‌های راه رفتن ===== */

/* بدنه کمی به جلو خم می‌شه موقع راه رفتن */
.worker.walking .worker-body {
    animation: walkBodyLean 0.3s ease-in-out infinite alternate;
}

@keyframes walkBodyLean {
    from { transform: translateY(0) rotate(-2deg); }
    to { transform: translateY(-2px) rotate(2deg); }
}

/* سر هم تکون می‌خوره */
.worker.walking .worker-head,
.worker.walking .worker-helmet {
    animation: walkHeadBob 0.3s ease-in-out infinite alternate;
}

@keyframes walkHeadBob {
    from { transform: translateY(0) translateX(-1px); }
    to { transform: translateY(-3px) translateX(1px); }
}

/* دست‌ها با حرکت طبیعی‌تر */
.worker.walking .worker-arm.left {
    animation: armSwingLeft 0.35s ease-in-out infinite alternate;
}
.worker.walking .worker-arm.right {
    animation: armSwingRight 0.35s ease-in-out infinite alternate;
}

@keyframes armSwingLeft {
    0% { transform: rotate(-30deg) translateX(2px); }
    100% { transform: rotate(30deg) translateX(-2px); }
}

@keyframes armSwingRight {
    0% { transform: rotate(30deg) translateX(-2px); }
    100% { transform: rotate(-30deg) translateX(2px); }
}

/* پاها با خم شدن زانو */
.worker.walking .worker-leg.left {
    animation: legWalkLeft 0.3s ease-in-out infinite;
}
.worker.walking .worker-leg.right {
    animation: legWalkRight 0.3s ease-in-out infinite;
}

@keyframes legWalkLeft {
    0% { transform: translateY(0) rotate(-20deg); }
    25% { transform: translateY(-5px) rotate(-30deg); } /* زانو بالا */
    50% { transform: translateY(0) rotate(0deg); }
    75% { transform: translateY(2px) rotate(15deg); }
    100% { transform: translateY(0) rotate(-20deg); }
}

@keyframes legWalkRight {
    0% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(2px) rotate(15deg); }
    50% { transform: translateY(0) rotate(-20deg); }
    75% { transform: translateY(-5px) rotate(-30deg); } /* زانو بالا */
    100% { transform: translateY(0) rotate(0deg); }
}

/* ===== حالت برداشتن - خم شدن ===== */
.worker.picking {
    transform: translateY(5px); /* کل بدن پایین میره */
}

.worker.picking .worker-body {
    animation: none;
    transform: rotate(15deg); /* خم شدن به جلو */
}

.worker.picking .worker-head,
.worker.picking .worker-helmet {
    animation: none;
    transform: translateY(3px) rotate(10deg); /* نگاه به پایین */
}

.worker.picking .worker-arm {
    animation: pickingArms 0.4s ease-in-out;
}

@keyframes pickingArms {
    0% { transform: rotate(0deg); }
    50% { transform: rotate(50deg) translateY(10px); } /* دست‌ها پایین */
    100% { transform: rotate(40deg) translateY(8px); }
}

.worker.picking .worker-leg {
    animation: none;
    transform: rotate(10deg); /* کمی خم */
}

/* ===== حالت حمل - دست‌ها بالا ===== */
.worker.carrying .worker-body {
    animation: carryBodySway 0.5s ease-in-out infinite alternate;
}

@keyframes carryBodySway {
    from { transform: translateY(0); }
    to { transform: translateY(-2px); }
}

.worker.carrying .worker-arm {
    animation: carryArms 0.6s ease-in-out infinite alternate;
}

@keyframes carryArms {
    0% { transform: rotate(-65deg) translateY(-8px); }
    100% { transform: rotate(-70deg) translateY(-10px); }
}

.worker.carrying .worker-head,
.worker.carrying .worker-helmet {
    animation: carryHeadLook 0.8s ease-in-out infinite alternate;
}

@keyframes carryHeadLook {
    from { transform: translateY(-2px) rotate(-5deg); } /* نگاه به بالا */
    to { transform: translateY(-1px) rotate(0deg); }
}

/* ===== حالت گذاشتن ===== */
.worker.placing {
    transform: translateY(-3px); /* کمی بالا */
}

.worker.placing .worker-body {
    animation: none;
    transform: translateY(-2px);
}

.worker.placing .worker-arm {
    animation: placeArms 0.5s ease forwards;
}

@keyframes placeArms {
    0% { transform: rotate(-70deg) translateY(-10px); }
    40% { transform: rotate(-90deg) translateY(-15px); } /* کشیدن بالا */
    70% { transform: rotate(-85deg) translateY(-12px); } /* چسباندن */
    100% { transform: rotate(-80deg) translateY(-10px); }
}

.worker.placing .worker-head,
.worker.placing .worker-helmet {
    animation: placeHeadUp 0.5s ease forwards;
}

@keyframes placeHeadUp {
    0% { transform: rotate(0deg); }
    50% { transform: translateY(-5px) rotate(-10deg); } /* نگاه به بالا */
    100% { transform: translateY(-3px) rotate(-5deg); }
}

.code-icon {
    font-family: monospace;
    color: #38bdf8;
    margin-bottom: 20px;
    display: block;
    font-size: 1.5rem;
    animation: float 2.5s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* ریسپانسیو */
@media screen and (max-width: 1024px) {
    h1 { font-size: 2.2rem; }
    .letter-pile { left: -90px; }
    .worker-container { left: -90px; width: calc(100% + 90px); }
}

@media screen and (max-width: 768px) {
    h1 { font-size: 1.8rem; }
    
    .container {
        padding: 40px 10px;
    }

    .letter-pile {
        left: -70px;
        transform: translateY(-50%) scale(0.75);
    }

    .worker-container {
        left: -70px;
        width: calc(100% + 70px);
        bottom: -55px;
        height: 60px;
    }

    .worker {
        width: 38px;
        height: 53px;
    }
}

@media screen and (max-width: 480px) {
    h1 { font-size: 1.2rem; }
    
    .letter-pile {
        left: -50px;
        width: 50px;
        transform: translateY(-50%) scale(0.6);
    }
    
    .worker-container {
        left: -50px;
        width: calc(100% + 50px);
        bottom: -45px;
    }
    
    .worker {
        width: 32px;
        height: 45px;
    }
    
    .cursor-light {
        display: none;
    }
}