:root {
    --pk-primary: #6558e8;
    --pk-primary-dark: #5345d1;
    --pk-ink: #24233b;
    --pk-muted: #77788d;
    --pk-bg: #f7f7fb;
    --pk-surface: #fff;
    --pk-border: #ececf3;
    --pk-shadow: 0 16px 42px rgba(39, 38, 77, .07);
    --bs-primary: #6558e8;
    --bs-primary-rgb: 101, 88, 232;
    --bs-body-font-family: 'Poppins', sans-serif;
}

[data-bs-theme="dark"] {
    color-scheme: dark;
    --pk-ink: #f0effb;
    --pk-muted: #aaa9bf;
    --pk-bg: #171722;
    --pk-surface: #222230;
    --pk-border: #363545;
    --pk-shadow: 0 16px 42px rgba(0, 0, 0, .22);
    --bs-body-bg: #171722;
    --bs-body-color: #f0effb;
    --bs-secondary-color: #aaa9bf;
    --bs-tertiary-bg: #222230;
    --bs-border-color: #363545;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 85px; }
body { background: var(--pk-bg); color: var(--pk-ink); font-family: 'Poppins', sans-serif; font-size: .94rem; min-height: 100vh; }
a { text-decoration: none; }
.app-navbar { background: color-mix(in srgb, var(--pk-surface) 92%, transparent); backdrop-filter: blur(14px); border-bottom: 1px solid var(--pk-border); min-height: 72px; }
.navbar-brand { color: var(--pk-ink); font-size: 1.28rem; font-weight: 700; letter-spacing: -.8px; }
.navbar-brand:hover { color: var(--pk-ink); }
.brand-accent { color: var(--pk-primary); }
.navbar .nav-link { color: var(--pk-muted); font-size: .87rem; font-weight: 500; padding-inline: .85rem !important; }
.navbar .nav-link:hover, .navbar .nav-link:focus { color: var(--pk-primary); }
.theme-toggle { align-items: center; border: 1px solid var(--pk-border); color: var(--pk-ink); display: inline-flex; height: 40px; justify-content: center; width: 40px; }
.theme-toggle:hover { background: var(--pk-bg); color: var(--pk-primary); }
.hero-section { padding: 38px 0 34px; }
.hero-card { background: linear-gradient(112deg, #f1efff 0%, #f6f4ff 47%, #f8f2ff 100%); border: 1px solid #eeebff; border-radius: 28px; min-height: 405px; overflow: hidden; padding: 62px 7%; position: relative; }
[data-bs-theme="dark"] .hero-card { background: linear-gradient(112deg, #29253f, #30283f); border-color: #3a3454; }
.hero-copy { max-width: 520px; position: relative; z-index: 2; }
.eyebrow { color: var(--pk-muted); display: inline-flex; font-size: .68rem; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; }
.hero-copy .eyebrow { align-items: center; background: rgba(255,255,255,.65); border: 1px solid rgba(101,88,232,.12); border-radius: 99px; color: #665da1; letter-spacing: .1px; padding: 7px 12px; text-transform: none; }
.status-dot { background: #38c78e; border-radius: 50%; height: 7px; margin-right: 8px; width: 7px; }
.hero-copy h1 { color: #25233c; font-size: clamp(2.7rem, 5vw, 4.1rem); font-weight: 700; letter-spacing: -3px; line-height: 1.12; margin: 22px 0 15px; }
[data-bs-theme="dark"] .hero-copy h1 { color: #f3f0ff; }
.text-gradient { background: linear-gradient(100deg, #6558e8, #af5bdc); background-clip: text; color: transparent; }
.hero-copy > p { color: #72728b; font-size: 1rem; line-height: 1.8; margin-bottom: 24px; max-width: 420px; }
.hero-cta { background: var(--pk-primary); border: 0; box-shadow: 0 9px 22px rgba(101,88,232,.22); font-size: .88rem; padding: 13px 22px; }
.hero-cta:hover { background: var(--pk-primary-dark); transform: translateY(-1px); }
.hero-trust { color: #77778c; font-size: .72rem; margin-top: 18px; }
.hero-trust i { color: #48ad83; margin-right: 5px; }
.hero-art { height: 310px; position: absolute; right: 7%; top: 44px; width: 390px; z-index: 1; }
.orbit { border: 1px solid rgba(108,96,226,.13); border-radius: 50%; height: 290px; left: 44px; position: absolute; top: 5px; transform: rotate(-25deg); width: 290px; }
.orbit-two { height: 225px; left: 77px; top: 38px; transform: rotate(30deg); width: 225px; }
.floating-sheet { background: #fff; border: 1px solid #eeeefa; border-radius: 14px; box-shadow: 0 22px 45px rgba(63,55,119,.14); height: 218px; padding: 20px; position: absolute; width: 165px; }
.sheet-back { left: 85px; top: 56px; transform: rotate(-12deg); }
.sheet-front { left: 156px; top: 33px; transform: rotate(8deg); }
.floating-sheet > span { background: #edecf5; border-radius: 4px; display: block; height: 7px; margin-top: 13px; width: 100%; }
.floating-sheet > span:nth-last-child(1) { width: 55%; }
.pdf-badge { align-items: center; background: #fff0f2; border-radius: 10px; color: #e65d70; display: flex; font-size: .75rem; font-weight: 700; height: 67px; justify-content: center; letter-spacing: .5px; margin-bottom: 17px; }
.floating-chip { align-items: center; background: #fff; border: 1px solid #f1effa; border-radius: 15px; box-shadow: 0 10px 24px rgba(55,51,100,.14); color: var(--pk-primary); display: flex; font-size: 1.2rem; height: 48px; justify-content: center; position: absolute; width: 48px; }
.chip-merge { left: 51px; top: 60px; }
.chip-check { background: #e3f7ef; border: 0; color: #36ae7e; right: 38px; top: 191px; }
.hero-shape { background: rgba(166,154,255,.15); border-radius: 50%; height: 100px; position: absolute; right: -37px; top: -53px; width: 100px; }
.shape-two { background: rgba(231,168,242,.12); bottom: -54px; height: 145px; left: 43%; right: auto; top: auto; width: 145px; }
.tools-section { padding-bottom: 66px; padding-top: 42px; }
.section-heading { align-items: end; display: flex; justify-content: space-between; margin-bottom: 24px; }
.section-eyebrow { color: var(--pk-primary); }
.section-heading h2, .faq-preview h2 { color: var(--pk-ink); font-size: clamp(1.45rem, 3vw, 1.9rem); font-weight: 600; letter-spacing: -.7px; margin: 8px 0 6px; }
.section-heading p, .faq-preview p { color: var(--pk-muted); font-size: .87rem; margin-bottom: 0; }
.tool-count { background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 50px; color: var(--pk-muted); font-size: .73rem; padding: 8px 12px; white-space: nowrap; }
.tool-count i { color: #efad44; margin-right: 4px; }
.tool-card { background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 17px; box-shadow: 0 4px 14px rgba(43,41,77,.025); color: var(--pk-ink); cursor: pointer; display: flex; flex-direction: column; min-height: 205px; padding: 20px; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.tool-card:hover, .tool-card:focus-visible { border-color: rgba(101,88,232,.4); box-shadow: var(--pk-shadow); outline: none; transform: translateY(-4px); }
.tool-card { text-decoration: none; }
.tool-icon { align-items: center; border-radius: 12px; display: flex; font-size: 1.17rem; height: 45px; justify-content: center; margin-bottom: 16px; width: 45px; }
.icon-purple { background: #f0edff; color: #735ee8; }.icon-orange { background: #fff1e6; color: #ee8b3e; }.icon-green { background: #e9f8f0; color: #32a876; }.icon-blue { background: #eaf2ff; color: #4a88e9; }.icon-pink { background: #ffedf5; color: #db5d9c; }.icon-yellow { background: #fff7dd; color: #c99924; }.icon-teal { background: #e6f8f6; color: #2b9a91; }.icon-red { background: #ffeded; color: #e56565; }
.tool-title { font-size: .94rem; font-weight: 600; margin-bottom: 5px; }
.tool-description { color: var(--pk-muted); font-size: .76rem; line-height: 1.6; min-height: 39px; }
.tool-action { color: var(--pk-primary); font-size: .74rem; font-weight: 500; margin-top: auto; padding-top: 13px; }
.tool-action i { margin-left: 4px; }
.privacy-note { color: var(--pk-muted); font-size: .74rem; margin: 21px 0 0; text-align: center; }
.privacy-note i { color: #38a87b; margin-right: 5px; }
.feature-section { background: var(--pk-surface); border-bottom: 1px solid var(--pk-border); border-top: 1px solid var(--pk-border); padding: 72px 0; }
.feature-title { color: var(--pk-ink); font-size: clamp(2rem,4vw,2.7rem); font-weight: 600; letter-spacing: -1.5px; line-height: 1.25; margin: 13px 0; }
.feature-copy { color: var(--pk-muted); font-size: .87rem; line-height: 1.9; max-width: 390px; }
.text-link { color: var(--pk-primary); font-size: .83rem; font-weight: 500; }
.text-link i { margin-left: 5px; }
.feature-grid { display: grid; gap: 15px; grid-template-columns: repeat(2, 1fr); }
.feature-tile { background: var(--pk-bg); border: 1px solid var(--pk-border); border-radius: 16px; min-height: 176px; padding: 20px; }
.feature-mark { align-items: center; border-radius: 10px; display: flex; font-size: 1rem; height: 38px; justify-content: center; margin-bottom: 13px; width: 38px; }
.mark-lilac { background: #eeebff; color: #7562e5; }.mark-mint { background: #e4f7ed; color: #39a877; }.mark-peach { background: #fff0e4; color: #e68d4f; }.mark-sky { background: #e7f2ff; color: #578fe4; }
.feature-tile h3 { color: var(--pk-ink); font-size: .85rem; font-weight: 600; }
.feature-tile p { color: var(--pk-muted); font-size: .73rem; line-height: 1.7; margin: 0; }
.faq-preview { padding-bottom: 72px; padding-top: 65px; }
.faq-preview-card { align-items: center; background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 19px; box-shadow: 0 8px 24px rgba(43,41,77,.03); display: flex; justify-content: space-between; padding: 28px 34px; }
.faq-preview h2 { font-size: 1.35rem; }
.btn-outline-primary { --bs-btn-color: var(--pk-primary); --bs-btn-border-color: #d7d2ff; --bs-btn-hover-bg: var(--pk-primary); --bs-btn-hover-border-color: var(--pk-primary); --bs-btn-hover-color: #fff; font-size: .8rem; }
.app-footer { background: var(--pk-surface); border-top: 1px solid var(--pk-border); padding: 34px 0; }
.app-footer .navbar-brand { font-size: 1.08rem; }
.footer-copy { color: var(--pk-muted); font-size: .72rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 10px 20px; }
.footer-links a { color: var(--pk-muted); font-size: .75rem; }
.footer-links a:hover { color: var(--pk-primary); }
.footer-copy strong { color: var(--pk-ink); font-weight: 500; }
.mobile-dock { background: color-mix(in srgb, var(--pk-surface) 94%, transparent); border-top: 1px solid var(--pk-border); bottom: 0; display: flex; justify-content: space-around; padding: 7px 4px calc(7px + env(safe-area-inset-bottom)); position: fixed; width: 100%; z-index: 1030; }
.mobile-dock a, .mobile-dock button { align-items: center; background: none; border: 0; color: var(--pk-muted); display: flex; flex: 1; flex-direction: column; font: inherit; font-size: .62rem; gap: 2px; justify-content: center; padding: 3px; }
.mobile-dock i { font-size: 1.13rem; }
.mobile-dock a:hover, .mobile-dock button:hover { color: var(--pk-primary); }
.tool-modal-content { background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 22px; color: var(--pk-ink); padding: 8px; }
.tool-modal-content .modal-header { padding: 22px 23px 0; }
.tool-modal-content .modal-body { padding: 19px 23px 24px; }
.upload-zone { align-items: center; background: var(--pk-bg); border: 1.5px dashed #c9c5e8; border-radius: 16px; cursor: pointer; display: flex; flex-direction: column; justify-content: center; min-height: 180px; padding: 23px; text-align: center; transition: border-color .2s, background .2s; }
.upload-zone:hover, .upload-zone.drag-over { background: rgba(101,88,232,.05); border-color: var(--pk-primary); }
.upload-zone > i { color: var(--pk-primary); font-size: 1.8rem; margin-bottom: 8px; }
.upload-zone strong { color: var(--pk-ink); font-size: .9rem; }
.upload-zone span { color: var(--pk-muted); font-size: .73rem; margin-top: 5px; }
.file-input { display: none; }
.form-label { color: var(--pk-ink); font-size: .79rem; font-weight: 500; }
.form-control, .form-select { background-color: var(--pk-surface); border-color: var(--pk-border); color: var(--pk-ink); font-size: .84rem; padding: .7rem .85rem; }
.form-control:focus, .form-select:focus { background-color: var(--pk-surface); border-color: var(--pk-primary); box-shadow: 0 0 0 .2rem rgba(101,88,232,.13); color: var(--pk-ink); }
.form-text { color: var(--pk-muted); font-size: .7rem; }
.selected-files { display: grid; gap: 7px; margin-top: 12px; }
.selected-file { align-items: center; background: var(--pk-bg); border: 1px solid var(--pk-border); border-radius: 10px; color: var(--pk-ink); display: flex; font-size: .74rem; gap: 9px; overflow: hidden; padding: 9px 11px; }
.selected-file i { color: var(--pk-primary); }
.selected-file span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.selected-file small { color: var(--pk-muted); margin-left: auto; white-space: nowrap; }
.processing-status { color: var(--pk-muted); font-size: .76rem; min-height: 22px; }
.processing-status.error { color: #d34646; }.processing-status.success { color: #22855c; }
.modal-action { background: var(--pk-primary); border: 0; font-size: .83rem; min-height: 45px; }
.modal-action:hover { background: var(--pk-primary-dark); }
.page-hero { background: linear-gradient(110deg, #f1efff, var(--pk-bg)); border-bottom: 1px solid var(--pk-border); padding: 60px 0 54px; }
[data-bs-theme="dark"] .page-hero { background: linear-gradient(110deg, #29253f, var(--pk-bg)); }
.page-hero h1 { color: var(--pk-ink); font-size: clamp(2rem,5vw,3rem); font-weight: 600; letter-spacing: -1.5px; margin: 12px 0 8px; }
.page-hero p { color: var(--pk-muted); font-size: .9rem; margin: 0; }
.content-narrow { max-width: 850px; }
.tool-workspace-card { background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 20px; box-shadow: var(--pk-shadow); margin: 0 auto; max-width: 780px; padding: 28px; }
.related-tools { margin: 46px auto 0; max-width: 780px; }
.related-tools h2 { color: var(--pk-ink); font-size: 1.05rem; font-weight: 600; margin-bottom: 15px; }
.tool-workspace-card .upload-zone { min-height: 225px; }
.info-page { padding-bottom: 80px; padding-top: 42px; }
.paper-accordion .accordion-item { background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 12px !important; color: var(--pk-ink); margin-bottom: 10px; overflow: hidden; }
.paper-accordion .accordion-button { background: var(--pk-surface); box-shadow: none; color: var(--pk-ink); font-size: .85rem; font-weight: 500; padding: 17px 19px; }
.paper-accordion .accordion-button:not(.collapsed) { color: var(--pk-primary); }
.paper-accordion .accordion-button::after { background-size: .9rem; }
.paper-accordion .accordion-body { color: var(--pk-muted); font-size: .8rem; line-height: 1.8; padding: 0 19px 18px; }
.guide-steps { border-left: 1px solid var(--pk-border); margin: 10px 0 35px 20px; }
.guide-step { display: flex; gap: 19px; padding: 0 0 28px 0; transform: translateX(-19px); }
.guide-step > span { align-items: center; background: #eeebff; border: 4px solid var(--pk-bg); border-radius: 50%; color: var(--pk-primary); display: flex; flex: 0 0 38px; font-size: .69rem; font-weight: 600; height: 38px; justify-content: center; }
.guide-step h2 { color: var(--pk-ink); font-size: 1rem; font-weight: 600; margin: 7px 0; }
.guide-step p, .tips-list { color: var(--pk-muted); font-size: .82rem; line-height: 1.85; }
.guide-callout { align-items: start; background: rgba(101,88,232,.07); border: 1px solid rgba(101,88,232,.14); border-radius: 14px; color: var(--pk-primary); display: flex; gap: 14px; padding: 17px; }
.guide-callout > i { font-size: 1.2rem; }
.guide-callout strong { color: var(--pk-ink); font-size: .82rem; }
.guide-callout p { color: var(--pk-muted); font-size: .76rem; line-height: 1.7; margin-top: 5px; }
.info-page > h2, .legal-copy h2 { color: var(--pk-ink); font-size: 1rem; font-weight: 600; margin: 24px 0 8px; }
.legal-copy p { color: var(--pk-muted); font-size: .81rem; line-height: 1.9; }
.legal-copy strong { color: var(--pk-ink); }
.tips-list { padding-left: 20px; }.tips-list li { margin-bottom: 7px; }.tips-list code { background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 5px; color: var(--pk-primary); padding: 2px 5px; }
.toast { background: var(--pk-surface); border: 1px solid var(--pk-border); color: var(--pk-ink); }
.camera-modal { align-items: center; background: rgba(17,17,28,.76); display: flex; inset: 0; justify-content: center; padding: 18px; position: fixed; z-index: 1090; }
.camera-modal[hidden] { display: none; }
.camera-panel { background: var(--pk-surface); border-radius: 20px; color: var(--pk-ink); max-height: 94vh; max-width: 520px; overflow: auto; padding: 20px; width: 100%; }
.camera-panel video { background: #101018; border-radius: 12px; max-height: 55vh; object-fit: contain; width: 100%; }
.scan-preview { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.scan-preview img { border: 1px solid var(--pk-border); border-radius: 7px; height: 72px; object-fit: cover; width: 56px; }
@media (max-width: 991.98px) {
    body { padding-bottom: calc(60px + env(safe-area-inset-bottom)); }
    .navbar-collapse { background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 13px; margin-top: 8px; padding: 9px 13px; }
    .theme-toggle { border: 0; width: auto; }
    .hero-card { min-height: 350px; padding: 46px 7%; }
    .hero-art { opacity: .46; right: -44px; transform: scale(.8); transform-origin: right center; }
    .hero-copy { max-width: 470px; }
    .tools-section { padding-top: 27px; }
    .feature-section { padding: 55px 0; }
    .faq-preview { padding-bottom: 45px; padding-top: 45px; }
    .app-footer { padding-bottom: 20px; }
}
@media (max-width: 575.98px) {
    .app-navbar { min-height: 62px; }
    .navbar-brand { font-size: 1.15rem; }
    .hero-section { padding: 17px 0 15px; }
    .hero-card { border-radius: 22px; min-height: 372px; padding: 32px 22px; }
    .hero-copy .eyebrow { font-size: .64rem; }
    .hero-copy h1 { font-size: 2.7rem; letter-spacing: -2px; margin-top: 21px; }
    .hero-copy > p { font-size: .87rem; max-width: 300px; }
    .hero-art { opacity: .2; right: -120px; top: 52px; transform: scale(.72); }
    .hero-trust { font-size: .65rem; max-width: 270px; }
    .tools-section { padding-bottom: 42px; }
    .section-heading { align-items: start; flex-direction: column; gap: 10px; }
    .section-heading h2 { font-size: 1.45rem; }
    .tool-card { min-height: 179px; padding: 16px; }
    .tool-icon { height: 41px; margin-bottom: 12px; width: 41px; }
    .tool-description { font-size: .72rem; }
    .feature-grid { gap: 9px; }
    .feature-tile { min-height: 168px; padding: 14px; }
    .feature-tile h3 { font-size: .78rem; }
    .feature-tile p { font-size: .69rem; }
    .faq-preview-card { align-items: start; flex-direction: column; gap: 18px; padding: 22px; }
    .faq-preview h2 { font-size: 1.15rem; }
    .footer-links { gap: 12px 17px; }
    .app-footer .text-lg-end { text-align: left !important; }
    .page-hero { padding: 42px 0 36px; }
    .info-page { padding-bottom: 45px; padding-top: 28px; }
    .tool-modal-content .modal-header { padding-inline: 15px; }
    .tool-modal-content .modal-body { padding: 16px 15px 20px; }
    .upload-zone { min-height: 155px; }
    .tool-workspace-card { border-radius: 16px; padding: 17px; }
    .tool-workspace-card .upload-zone { min-height: 175px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}