:root {
    --tr-ink: #0f172a;
    --tr-muted: #64748b;
    --tr-line: #dbe4ee;
    --tr-brand: #1d4ed8;
    --tr-brand-deep: #1e3a8a;
    --tr-accent: #0f766e;
    --tr-danger: #b91c1c;
    --tr-shadow: 0 22px 54px rgba(15, 23, 42, .09);
}

* { box-sizing: border-box; }

body {
    min-height: 100vh;
    margin: 0;
    color: var(--tr-ink);
    font-family: "Vazirmatn", sans-serif;
    background:
        radial-gradient(circle at 92% 4%, rgba(59, 130, 246, .15), transparent 25rem),
        radial-gradient(circle at 5% 88%, rgba(20, 184, 166, .12), transparent 24rem),
        linear-gradient(180deg, #f8fafc, #eef5fb 60%, #f8fafc);
}

.translation-shell {
    width: min(1280px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 1.25rem 0 2.5rem;
}

.translation-hero,
.translation-panel {
    border: 1px solid rgba(148, 163, 184, .28);
    background: rgba(255, 255, 255, .94);
    box-shadow: var(--tr-shadow);
    backdrop-filter: blur(12px);
}

.translation-hero {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.3rem 1.45rem;
    border-radius: 1.45rem;
    background:
        radial-gradient(circle at 94% 0, rgba(37, 99, 235, .18), transparent 18rem),
        radial-gradient(circle at 2% 110%, rgba(15, 118, 110, .15), transparent 17rem),
        linear-gradient(135deg, #fff, #eff6ff 58%, #f0fdfa);
}

.translation-hero::after {
    content: "";
    position: absolute;
    inset-inline-start: -70px;
    bottom: -105px;
    width: 230px;
    height: 230px;
    border: 34px solid rgba(29, 78, 216, .045);
    border-radius: 50%;
    pointer-events: none;
}

.translation-hero__copy { position: relative; z-index: 1; min-width: 0; }
.translation-hero h1 { margin: .45rem 0 .25rem; font-size: clamp(1.45rem, 2.5vw, 2.1rem); font-weight: 950; }
.translation-hero p { max-width: 720px; margin: 0; color: var(--tr-muted); line-height: 1.9; }

.translation-eyebrow,
.translation-panel__kicker {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    color: var(--tr-brand);
    font-size: .72rem;
    font-weight: 950;
}

.translation-eyebrow {
    padding: .28rem .62rem;
    border: 1px solid rgba(37, 99, 235, .18);
    border-radius: 999px;
    background: rgba(239, 246, 255, .86);
}

.translation-hero__limit {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: .7rem;
    flex: 0 0 auto;
    min-width: 205px;
    padding: .8rem .9rem;
    border: 1px solid rgba(15, 118, 110, .18);
    border-radius: 1.15rem;
    background: rgba(255, 255, 255, .82);
}

.translation-hero__limit-icon {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 1rem;
    color: #fff;
    background: linear-gradient(135deg, var(--tr-accent), #06b6d4);
}

.translation-hero__limit strong,
.translation-hero__limit small { display: block; }
.translation-hero__limit strong { font-size: .82rem; }
.translation-hero__limit small { margin-top: .12rem; color: var(--tr-muted); font-size: .68rem; }

.translation-workspace {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(340px, .8fr);
    gap: 1rem;
    margin-top: 1rem;
    align-items: stretch;
}

.translation-panel {
    min-width: 0;
    min-height: 520px;
    padding: 1.1rem;
    border-radius: 1.35rem;
}

.translation-panel__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: .85rem;
}

.translation-panel__head h2 { margin: .15rem 0 0; font-size: 1.08rem; font-weight: 950; }

.translation-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .35rem;
    min-height: 38px;
    padding: .4rem .68rem;
    border: 1px solid var(--tr-line);
    border-radius: .88rem;
    color: #475569;
    background: #fff;
    font-size: .75rem;
    font-weight: 900;
}

.translation-icon-btn:hover:not(:disabled) { color: var(--tr-brand); border-color: #93c5fd; background: #eff6ff; }
.translation-icon-btn:disabled { opacity: .48; cursor: not-allowed; }

.translation-textarea {
    width: 100%;
    min-height: 320px;
    resize: vertical;
    padding: 1rem;
    border: 1px solid var(--tr-line);
    border-radius: 1.1rem;
    outline: none;
    color: var(--tr-ink);
    background: linear-gradient(145deg, #fff, #fbfdff);
    font: 500 .94rem/2 "Vazirmatn", sans-serif;
    transition: border-color .16s ease, box-shadow .16s ease;
}

.translation-textarea:focus { border-color: #60a5fa; box-shadow: 0 0 0 4px rgba(59, 130, 246, .1); }
.translation-textarea.is-invalid { border-color: #fca5a5; box-shadow: 0 0 0 4px rgba(220, 38, 38, .07); }

.translation-input-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    min-height: 34px;
    padding: .42rem .15rem 0;
}

.translation-validation { color: var(--tr-danger); font-size: .72rem; font-weight: 850; }
.translation-counter { margin-inline-start: auto; color: var(--tr-muted); font-size: .72rem; font-weight: 900; white-space: nowrap; }
.translation-counter.is-near-limit { color: #b45309; }
.translation-counter.is-over-limit { color: var(--tr-danger); }

.translation-submit-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-top: .85rem;
}

.translation-submit-row p { margin: 0; color: var(--tr-muted); font-size: .7rem; line-height: 1.8; }
.translation-submit-row p i { color: var(--tr-accent); margin-left: .25rem; }

.translation-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .45rem;
    min-width: 175px;
    min-height: 46px;
    padding: .65rem 1rem;
    border: 0;
    border-radius: 1rem;
    color: #fff;
    background: linear-gradient(135deg, var(--tr-brand-deep), var(--tr-brand), #0891b2);
    box-shadow: 0 14px 28px rgba(29, 78, 216, .2);
    font-weight: 950;
}

.translation-submit:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 18px 32px rgba(29, 78, 216, .25); }
.translation-submit:disabled { opacity: .52; cursor: not-allowed; box-shadow: none; }
.translation-submit__spinner { display: none; width: 18px; height: 18px; border: 2px solid rgba(255, 255, 255, .36); border-top-color: #fff; border-radius: 50%; animation: translation-spin .75s linear infinite; }
.translation-submit.is-loading .translation-submit__spinner { display: inline-block; }
.translation-submit.is-loading .translation-submit__icon { display: none; }

.translation-result { display: flex; flex-direction: column; }
.translation-result__body { flex: 1 1 auto; min-height: 0; display: flex; }

.translation-state,
.translation-output {
    width: 100%;
    min-height: 390px;
    border: 1px dashed #cbd5e1;
    border-radius: 1.1rem;
    background: linear-gradient(145deg, #f8fafc, #fff);
}

.translation-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.4rem;
    text-align: center;
}

.translation-state__mark {
    width: 54px;
    height: 54px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: .8rem;
    border-radius: 1.2rem;
    color: var(--tr-brand);
    background: linear-gradient(135deg, #dbeafe, #ccfbf1);
    font-size: 1.35rem;
}

.translation-state h3 { margin: 0; font-size: .96rem; font-weight: 950; }
.translation-state p { max-width: 430px; margin: .35rem 0 0; color: var(--tr-muted); font-size: .76rem; line-height: 1.9; }
.translation-state--error { border-color: #fecaca; background: #fff7f7; }
.translation-state--error .translation-state__mark { color: var(--tr-danger); background: #fee2e2; }

.translation-loader {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    border: 4px solid #dbeafe;
    border-top-color: var(--tr-brand);
    border-radius: 50%;
    animation: translation-spin .8s linear infinite;
}

.translation-output { padding: 1rem; border-style: solid; border-color: #bfdbfe; background: linear-gradient(145deg, #fff, #eff6ff); }
.translation-output__badge { display: inline-flex; align-items: center; gap: .35rem; padding: .3rem .6rem; border: 1px solid #99f6e4; border-radius: 999px; color: #0f766e; background: #f0fdfa; font-size: .7rem; font-weight: 900; }
.translation-output pre { max-height: 410px; margin: .8rem 0 0; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; color: #172033; background: transparent; font: 600 .9rem/2.15 "Vazirmatn", sans-serif; unicode-bidi: plaintext; }

@keyframes translation-spin { to { transform: rotate(360deg); } }

@media (max-width: 900px) {
    .translation-workspace { grid-template-columns: 1fr; }
    .translation-panel { min-height: auto; }
}

@media (max-width: 640px) {
    .translation-shell { width: min(100% - 1rem, 1280px); padding-top: .7rem; }
    .translation-hero { align-items: flex-start; flex-direction: column; padding: 1rem; }
    .translation-hero__limit { width: 100%; }
    .translation-panel { padding: .8rem; border-radius: 1.15rem; }
    .translation-textarea { min-height: 260px; }
    .translation-submit-row { align-items: stretch; flex-direction: column; }
    .translation-submit { width: 100%; }
    .translation-state, .translation-output { min-height: 300px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}