:root {
    --bg: #f7f8fb;
    --surface: #ffffff;
    --surface-2: #f1f4f8;
    --text: #121826;
    --muted: #5c667a;
    --muted-2: #7a8498;
    --line: rgba(18, 24, 38, .11);
    --brand: #1f6feb;
    --brand-2: #1557bd;
    --success: #139a5c;
    --warning: #b7791f;
    --danger: #d92d20;
    --shadow: 0 18px 60px rgba(15, 23, 42, .11);
    --shadow-soft: 0 10px 30px rgba(15, 23, 42, .08);
    --radius: 24px;
    --radius-sm: 16px;
    --max: 1180px;
}

* { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    color: var(--text);
    background:
            radial-gradient(circle at 15% 0%, rgba(31, 111, 235, .13), transparent 34rem),
            radial-gradient(circle at 88% 8%, rgba(19, 154, 92, .10), transparent 28rem),
            var(--bg);
    line-height: 1.5;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.brand img{
    width: 380px;
}
button, input { font: inherit; }

.page {
    min-height: 100vh;
    overflow: hidden;
}

.container {
    width: min(var(--max), calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(18px);
    background: rgba(247, 248, 251, .78);
    border-bottom: 1px solid rgba(18, 24, 38, .08);
}

.nav {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 850;
    letter-spacing: -.03em;
    font-size: 1.05rem;
    white-space: nowrap;
}

.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 13px;
    display: grid;
    place-items: center;
    color: #fff;
    background: linear-gradient(135deg, var(--brand), #0fb981);
    box-shadow: 0 10px 24px rgba(31, 111, 235, .25);
    font-weight: 900;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 22px;
    color: var(--muted);
    font-weight: 700;
    font-size: .94rem;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn {
    border: 0;
    border-radius: 999px;
    padding: 12px 18px;
    font-weight: 800;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease, opacity .18s ease;
    min-height: 44px;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--brand), var(--brand-2));
    box-shadow: 0 12px 28px rgba(31, 111, 235, .28);
}

.btn-secondary {
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-soft);
}

.btn-ghost {
    color: var(--muted);
    background: transparent;
    border: 1px solid transparent;
}

.hero {
    padding: 68px 0 32px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(320px, .98fr);
    gap: 42px;
    align-items: center;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(31, 111, 235, .20);
    color: var(--brand-2);
    background: rgba(31, 111, 235, .08);
    padding: 8px 12px;
    border-radius: 999px;
    font-size: .86rem;
    font-weight: 850;
    margin-bottom: 18px;
}

h1 {
    margin: 0;
    font-size: clamp(2.35rem, 6vw, 5rem);
    line-height: .96;
    letter-spacing: -.07em;
    max-width: 820px;
}

.hero-lead {
    margin: 22px 0 0;
    max-width: 670px;
    color: var(--muted);
    font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 28px;
}

.trust-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 28px;
    max-width: 650px;
}

.trust-card {
    padding: 14px 16px;
    background: rgba(255,255,255,.70);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: 0 8px 22px rgba(15, 23, 42, .05);
}

.trust-card strong {
    display: block;
    font-size: 1.05rem;
    letter-spacing: -.03em;
}

.trust-card span {
    display: block;
    color: var(--muted);
    font-size: .88rem;
    margin-top: 2px;
}

.hero-preview {
    position: relative;
}

.comparison-card {
    background: var(--surface);
    border: 1px solid rgba(18, 24, 38, .10);
    border-radius: 32px;
    padding: 16px;
    box-shadow: var(--shadow);
    transform: rotate(1deg);
}

.comparison-inner {
    position: relative;
    aspect-ratio: 1 / 1;
    border-radius: 24px;
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--line);
}

.comparison-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.comparison-before {
    filter: saturate(.85) contrast(.94);
}

.comparison-after {
    clip-path: inset(0 0 0 50%);
}

.comparison-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 3px;
    background: #fff;
    box-shadow: 0 0 0 1px rgba(18,24,38,.12), 0 0 0 999px rgba(0,0,0,.02);
    transform: translateX(-50%);
}

.comparison-handle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: #fff;
    color: var(--brand);
    box-shadow: 0 12px 32px rgba(15, 23, 42, .20);
    font-weight: 900;
}

.label-pill {
    position: absolute;
    top: 14px;
    padding: 7px 10px;
    border-radius: 999px;
    font-size: .77rem;
    font-weight: 900;
    letter-spacing: .02em;
    background: rgba(18, 24, 38, .80);
    color: #fff;
}

.label-before { left: 14px; }
.label-after { right: 14px; background: rgba(19,154,92,.92); }

.floating-note {
    position: absolute;
    left: -18px;
    bottom: 24px;
    max-width: 245px;
    background: rgba(255,255,255,.92);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 14px 16px;
    box-shadow: var(--shadow-soft);
    font-size: .92rem;
    color: var(--muted);
}

.floating-note strong { color: var(--text); }

.section {
    padding: 42px 0;
}

.upload-card, .results-card, .pricing-card, .info-card {
    background: rgba(255,255,255,.86);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
}

.upload-card {
    padding: clamp(18px, 4vw, 34px);
}

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
}

.section-title {
    margin: 0;
    font-size: clamp(1.55rem, 3vw, 2.45rem);
    letter-spacing: -.05em;
    line-height: 1.05;
}

.section-subtitle {
    margin: 8px 0 0;
    color: var(--muted);
    max-width: 720px;
}

.quota-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border-radius: 999px;
    padding: 9px 12px;
    background: var(--surface-2);
    color: var(--muted);
    font-weight: 850;
    font-size: .9rem;
    white-space: nowrap;
}

.dropzone {
    position: relative;
    min-height: 250px;
    border: 2px dashed rgba(31, 111, 235, .32);
    background: linear-gradient(180deg, rgba(31,111,235,.07), rgba(255,255,255,.48));
    border-radius: 28px;
    display: grid;
    place-items: center;
    padding: 28px;
    cursor: pointer;
    transition: border-color .2s ease, background .2s ease, transform .2s ease;
    text-align: center;
}

.dropzone:hover, .dropzone.is-dragover {
    border-color: var(--brand);
    background: linear-gradient(180deg, rgba(31,111,235,.12), rgba(255,255,255,.60));
    transform: translateY(-1px);
}

.dropzone input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.upload-icon {
    width: 64px;
    height: 64px;
    border-radius: 22px;
    display: grid;
    place-items: center;
    margin: 0 auto 16px;
    color: #fff;
    background: linear-gradient(135deg, var(--brand), #0fb981);
    box-shadow: 0 14px 32px rgba(31, 111, 235, .25);
    font-size: 1.7rem;
}

.dropzone h2 {
    margin: 0;
    font-size: clamp(1.35rem, 3vw, 2rem);
    letter-spacing: -.04em;
}

.dropzone p {
    margin: 8px auto 0;
    color: var(--muted);
    max-width: 560px;
}

.upload-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
    color: var(--muted-2);
    font-size: .86rem;
}

.upload-meta span {
    background: rgba(255,255,255,.82);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 7px 10px;
}

.selected-panel {
    margin-top: 18px;
    display: none;
    gap: 16px;
    align-items: center;
    justify-content: space-between;
    background: var(--surface-2);
    border-radius: 20px;
    padding: 14px;
}

.selected-panel.is-visible { display: flex; }

.selected-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    color: var(--muted);
    font-size: .9rem;
}

.file-chip {
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 999px;
    padding: 7px 10px;
    font-weight: 700;
}

.progress-wrap {
    display: none;
    margin-top: 18px;
    background: var(--surface-2);
    border-radius: 20px;
    padding: 16px;
    border: 1px solid var(--line);
}

.progress-wrap.is-visible { display: block; }

.progress-top {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    color: var(--muted);
    font-weight: 800;
    font-size: .92rem;
    margin-bottom: 10px;
}

.progress-bar {
    height: 12px;
    background: rgba(18,24,38,.10);
    border-radius: 999px;
    overflow: hidden;
}

.progress-fill {
    width: 0%;
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--brand), #0fb981);
    transition: width .35s ease;
}

.results-card {
    overflow: hidden;
}

.results-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px;
    border-bottom: 1px solid var(--line);
}

.results-toolbar h2 {
    margin: 0;
    font-size: 1.35rem;
    letter-spacing: -.04em;
}

.toolbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.result-list {
    display: grid;
    gap: 0;
}

.empty-state {
    padding: 34px 18px;
    text-align: center;
    color: var(--muted);
}

.result-item {
    display: grid;
    grid-template-columns: 1.25fr 1fr auto;
    gap: 18px;
    align-items: center;
    padding: 18px;
    border-bottom: 1px solid var(--line);
}

.result-item:last-child { border-bottom: 0; }

.result-main {
    min-width: 0;
}

.result-title-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.result-title {
    margin: 0;
    font-size: 1rem;
    letter-spacing: -.02em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 360px;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 9px;
    border-radius: 999px;
    font-size: .78rem;
    font-weight: 900;
    background: var(--surface-2);
    color: var(--muted);
    white-space: nowrap;
}

.status-processing { color: var(--warning); background: rgba(183,121,31,.10); }
.status-done { color: var(--success); background: rgba(19,154,92,.10); }
.status-error { color: var(--danger); background: rgba(217,45,32,.10); }

.result-meta {
    margin-top: 7px;
    color: var(--muted);
    font-size: .9rem;
}

.preview-strip {
    display: grid;
    grid-template-columns: repeat(4, 54px);
    gap: 8px;
    justify-content: start;
}

.preview-thumb {
    width: 54px;
    height: 54px;
    object-fit: cover;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: #fff;
}

.preview-more {
    width: 54px;
    height: 54px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: var(--surface-2);
    color: var(--muted);
    font-weight: 900;
    border: 1px solid var(--line);
}

.result-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    flex-wrap: wrap;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-top: 18px;
}

.price-card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 20px;
    box-shadow: 0 8px 24px rgba(15,23,42,.06);
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.price-card.featured {
    border-color: rgba(31, 111, 235, .35);
    box-shadow: 0 14px 38px rgba(31, 111, 235, .13);
}

.price-tag {
    position: absolute;
    top: 14px;
    right: 14px;
    background: rgba(31,111,235,.10);
    color: var(--brand-2);
    font-size: .72rem;
    font-weight: 900;
    padding: 6px 8px;
    border-radius: 999px;
}

.price-card h3 {
    margin: 0;
    letter-spacing: -.04em;
    font-size: 1.12rem;
}

.price {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin-top: -4px;
}

.price strong {
    font-size: 2.2rem;
    letter-spacing: -.07em;
    line-height: 1;
}

.price span { color: var(--muted); font-weight: 800; }

.price-desc {
    color: var(--muted);
    margin: 0;
    min-height: 42px;
}

.price-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 9px;
    color: var(--muted);
    font-size: .92rem;
}

.price-list li::before {
    content: "✓";
    color: var(--success);
    font-weight: 900;
    margin-right: 7px;
}

.billing-tabs {
    display: inline-flex;
    background: var(--surface-2);
    padding: 5px;
    border-radius: 999px;
    border: 1px solid var(--line);
}

.tab-btn {
    border: 0;
    background: transparent;
    padding: 9px 13px;
    border-radius: 999px;
    font-weight: 900;
    color: var(--muted);
    cursor: pointer;
}

.tab-btn.is-active {
    background: #fff;
    color: var(--text);
    box-shadow: 0 8px 18px rgba(15,23,42,.08);
}

.pricing-set { display: none; }
.pricing-set.is-visible { display: grid; }

.info-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 18px;
}

.info-card {
    padding: 22px;
}

.info-card h3 {
    margin: 0 0 8px;
    letter-spacing: -.03em;
}

.info-card p {
    margin: 0;
    color: var(--muted);
}

.faq {
    display: grid;
    gap: 10px;
    margin-top: 18px;
}

details {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 16px 18px;
    box-shadow: 0 8px 22px rgba(15,23,42,.04);
}

summary {
    cursor: pointer;
    font-weight: 900;
    letter-spacing: -.02em;
}

details p {
    margin: 10px 0 0;
    color: var(--muted);
}

.site-footer {
    padding: 42px 0 50px;
    color: var(--muted);
    text-align: center;
    font-size: .92rem;
}

.toast {
    position: fixed;
    z-index: 100;
    left: 50%;
    bottom: 18px;
    transform: translateX(-50%) translateY(120%);
    background: #121826;
    color: #fff;
    border-radius: 999px;
    padding: 12px 16px;
    font-weight: 800;
    box-shadow: 0 16px 40px rgba(0,0,0,.22);
    transition: transform .25s ease;
    max-width: calc(100% - 32px);
    text-align: center;
}

.toast.is-visible {
    transform: translateX(-50%) translateY(0);
}
.selected-panel {
    position: relative;
    z-index: 5;
}

#startBtn {
    position: relative;
    z-index: 10;
}
.btn.is-disabled {
    opacity: .55;
    pointer-events: none;
    cursor: not-allowed;
}
@media (max-width: 980px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .hero-preview {
        max-width: 469px;
        margin: 0 auto;
        width: 469px;
    }

    .pricing-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .result-item {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .result-actions {
        justify-content: flex-start;
    }
    .floating-note {
        display: none;
    }
}

@media (max-width: 720px) {
    .container {
        width: min(var(--max), calc(100% - 22px));
    }

    .nav {
        height: 64px;
    }

    .nav-links {
        display: none;
    }

    .nav-actions .btn-secondary {
        display: none;
    }

    .hero {
        padding-top: 42px;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .trust-row {
        grid-template-columns: 1fr;
    }

    .floating-note {
        position: static;
        margin-top: 12px;
        max-width: none;
    }

    .comparison-card {
        transform: none;
        border-radius: 24px;
    }

    .comparison-inner {
        border-radius: 18px;
    }

    .section-head {
        display: block;
    }

    .quota-badge {
        margin-top: 12px;
    }

    .selected-panel {
        align-items: stretch;
        flex-direction: column;
    }

    .selected-panel .btn {
        width: 100%;
    }

    .results-toolbar {
        align-items: stretch;
        flex-direction: column;
    }

    .toolbar-actions .btn {
        flex: 1 1 auto;
    }

    .preview-strip {
        grid-template-columns: repeat(3, 54px);
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .billing-tabs {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 490px) {
    .hero-preview {
        width: 400px;
    }
}
@media (max-width: 390px) {
    .hero-preview {
        width: 288px;
    }
}