/* InvoiceTools frontend styles. Prefixed .it- to avoid theme collisions. */

:root {
    --it-blue: #2563eb;
    --it-blue-dark: #1d4ed8;
    --it-blue-soft: #eff6ff;
    --it-purple: #7c3aed;
    --it-purple-soft: #f5f3ff;
    --it-orange: #f97316;
    --it-orange-soft: #fff7ed;
    --it-green: #16a34a;
    --it-green-soft: #f0fdf4;
    --it-red: #dc2626;
    --it-slate-900: #0f172a;
    --it-slate-700: #334155;
    --it-slate-600: #475569;
    --it-slate-500: #64748b;
    --it-slate-400: #94a3b8;
    --it-slate-300: #cbd5e1;
    --it-slate-200: #e2e8f0;
    --it-slate-100: #f1f5f9;
    --it-slate-50:  #f8fafc;
    --it-shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);
    --it-shadow-md: 0 6px 20px -8px rgba(15, 23, 42, .12);
    --it-shadow-lg: 0 20px 40px -20px rgba(15, 23, 42, .22);
    --it-radius: 14px;
}

/* ==================== Hero section ==================== */

.it-hero {
    max-width: 1100px;
    margin: 0 auto 48px;
    padding: 8px 20px;
    font: 400 15px/1.55 -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--it-slate-900);
}

.it-hero__intro {
    text-align: center;
    max-width: 780px;
    margin: 8px auto 32px;
}

.it-hero__title {
    font-size: clamp(26px, 3.5vw, 40px);
    line-height: 1.15;
    letter-spacing: -0.6px;
    font-weight: 700;
    color: var(--it-slate-900);
    margin: 0 0 12px;
}

.it-hero__accent {
    background: linear-gradient(135deg, var(--it-blue) 0%, var(--it-purple) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    white-space: nowrap;
}

.it-hero__subtitle {
    font-size: 16px;
    line-height: 1.6;
    color: var(--it-slate-600);
    margin: 0 auto;
    max-width: 640px;
}

.it-hero__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: stretch;
    margin-bottom: 24px;
}

@media (max-width: 860px) {
    .it-hero__grid { grid-template-columns: 1fr; }
}

/* ---------- Cards ---------- */

.it-card {
    background: #fff;
    border: 1px solid var(--it-slate-200);
    border-radius: var(--it-radius);
    padding: 28px;
    box-shadow: var(--it-shadow-md);
    display: flex;
    flex-direction: column;
}

.it-card--upload    { padding: 20px; }
.it-card--preview   { background: linear-gradient(180deg, #fff 0%, #fafbff 100%); }
.it-card__heading   { margin: 0 0 6px; font-size: 20px; font-weight: 700; color: var(--it-slate-900); letter-spacing: -0.2px; }
.it-card__lead      { margin: 0 0 20px; font-size: 14px; color: var(--it-slate-500); }
.it-card__title     { margin: 0 0 6px; font-size: 20px; font-weight: 700; color: var(--it-slate-900); }
.it-card__body      { margin: 0 0 16px; font-size: 14px; color: var(--it-slate-500); }

/* ---------- Dropzone ---------- */

.it-dropzone {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 340px;
    padding: 32px 20px;
    background: linear-gradient(180deg, var(--it-blue-soft) 0%, #fff 100%);
    border: 2px dashed var(--it-slate-300);
    border-radius: 12px;
    text-align: center;
    cursor: pointer;
    transition: border-color .15s, background .15s, transform .15s;
    outline: none;
}
.it-dropzone:hover,
.it-dropzone:focus-visible,
.it-dropzone.is-dragover {
    border-color: var(--it-blue);
    background: linear-gradient(180deg, var(--it-blue-soft) 0%, #eef4ff 100%);
}
.it-dropzone.is-dragover { transform: scale(1.005); }

.it-dropzone__icon {
    color: var(--it-blue);
    background: #fff;
    padding: 14px;
    border-radius: 50%;
    box-shadow: var(--it-shadow-md);
    margin-bottom: 8px;
}
.it-dropzone__title {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
    color: var(--it-slate-900);
    letter-spacing: -0.2px;
}
.it-dropzone__hint {
    margin: 0;
    font-size: 15px;
    color: var(--it-slate-500);
}
.it-dropzone__link {
    color: var(--it-blue);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.it-dropzone__meta {
    margin: 4px 0 0;
    font-size: 12px;
    color: var(--it-slate-400);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}
.it-dropzone__scope {
    margin: 8px 0 0;
    font-size: 12px;
    color: var(--it-blue-dark);
    background: #fff;
    padding: 4px 12px;
    border-radius: 999px;
    display: inline-block;
    border: 1px solid var(--it-blue-soft);
}

/* ---------- Output formats list (right card) ---------- */

.it-formats {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.it-format {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: #fff;
    border: 1px solid var(--it-slate-200);
    border-radius: 12px;
    transition: transform .15s, box-shadow .15s;
}
.it-format:hover {
    transform: translateY(-1px);
    box-shadow: var(--it-shadow-md);
    border-color: var(--it-slate-300);
}
.it-format__icon {
    flex-shrink: 0;
    width: 46px; height: 46px;
    display: grid; place-items: center;
    border-radius: 10px;
}
.it-format__icon--label    { background: var(--it-blue-soft);   color: var(--it-blue); }
.it-format__icon--four-up  { background: var(--it-purple-soft); color: var(--it-purple); }
.it-format__icon--invoice  { background: var(--it-orange-soft); color: var(--it-orange); }
.it-format__icon--a4       { background: var(--it-green-soft);  color: var(--it-green); }
.it-format__title {
    font-size: 14px;
    font-weight: 700;
    color: var(--it-slate-900);
    margin: 0 0 2px;
}
.it-format__desc {
    font-size: 13px;
    color: var(--it-slate-500);
    line-height: 1.4;
}

/* ---------- States (inside upload card) ---------- */

.it-state[hidden] { display: none; }

.it-card--processing,
.it-card--ready,
.it-card--failed {
    padding: 40px 24px;
    text-align: center;
    border-radius: 12px;
    background: #fff;
    min-height: 340px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.it-card--processing { background: linear-gradient(180deg, #fff 0%, var(--it-blue-soft) 100%); }
.it-card--ready      { background: linear-gradient(180deg, #fff 0%, var(--it-green-soft) 100%); }
.it-card--failed     { background: linear-gradient(180deg, #fff 0%, #fef2f2 100%); }

.it-spinner {
    width: 48px; height: 48px;
    margin: 0 auto 14px;
    border: 4px solid var(--it-slate-200);
    border-top-color: var(--it-blue);
    border-radius: 50%;
    animation: it-spin .8s linear infinite;
}
@keyframes it-spin { to { transform: rotate(360deg); } }

.it-check {
    width: 64px; height: 64px;
    margin: 0 auto 14px;
    background: var(--it-green-soft);
    color: var(--it-green);
    border-radius: 50%;
    display: grid;
    place-items: center;
}

.it-status {
    margin: 8px 0 0;
    font-size: 13px;
    color: var(--it-slate-500);
    font-variant-numeric: tabular-nums;
}

.it-error {
    margin: 12px 0 0;
    padding: 10px 14px;
    background: #fef2f2;
    color: var(--it-red);
    border: 1px solid #fecaca;
    border-radius: 8px;
    font-size: 14px;
}

/* ---------- Result choice row ---------- */

.it-choice-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    width: 100%;
    max-width: 480px;
    margin: 20px 0 8px;
}
@media (max-width: 520px) {
    .it-choice-row { grid-template-columns: 1fr; }
}

.it-btn {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 14px 18px;
    border: 1px solid transparent;
    font-size: 15px;
    font-weight: 600;
    border-radius: 10px;
    cursor: pointer;
    transition: transform .06s, box-shadow .15s;
    text-align: center;
}
.it-btn--primary   { background: var(--it-blue);   border-color: var(--it-blue);   color: #fff; }
.it-btn--primary:hover   { background: var(--it-blue-dark);   border-color: var(--it-blue-dark);   }
.it-btn--secondary { background: #fff; border-color: var(--it-slate-300); color: var(--it-slate-900); }
.it-btn--secondary:hover { border-color: var(--it-blue); color: var(--it-blue); }
.it-btn:active { transform: translateY(1px); }
.it-btn:disabled { opacity: .55; cursor: not-allowed; }
.it-btn__label { display: block; }
.it-btn__meta {
    display: block;
    font-size: 12px;
    font-weight: 500;
    opacity: .8;
}

.it-link {
    display: inline-block;
    margin-top: 12px;
    background: none;
    border: none;
    color: var(--it-blue);
    font-size: 14px;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
    padding: 4px 6px;
}
.it-link:hover { color: var(--it-blue-dark); }

/* ---------- Trust chip row ---------- */

.it-trust {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 12px;
    margin: 4px auto 0;
    padding: 0;
    max-width: 780px;
    list-style: none;
}
.it-trust__chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: #fff;
    border: 1px solid var(--it-slate-200);
    border-radius: 999px;
    font-size: 13px;
    color: var(--it-slate-700);
    box-shadow: var(--it-shadow-sm);
    font-weight: 500;
}
.it-trust__dot {
    display: inline-block;
    width: 8px; height: 8px;
    border-radius: 50%;
}

/* ==================== Section headers ==================== */

.it-section-head {
    text-align: center;
    max-width: 720px;
    margin: 56px auto 32px;
}
.it-section-eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    color: var(--it-blue);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin: 0 0 10px;
}
.it-section-title {
    font-size: clamp(24px, 3vw, 32px);
    line-height: 1.2;
    letter-spacing: -0.4px;
    font-weight: 700;
    color: var(--it-slate-900);
    margin: 0;
}

/* ==================== How it works ==================== */

.it-how {
    max-width: 1100px;
    margin: 0 auto 48px;
    padding: 0 20px;
}
.it-how__steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: it-step;
}
@media (max-width: 860px) { .it-how__steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 460px) { .it-how__steps { grid-template-columns: 1fr; } }
.it-how__step {
    background: #fff;
    border: 1px solid var(--it-slate-200);
    border-radius: var(--it-radius);
    padding: 24px 22px;
    position: relative;
    transition: transform .15s, box-shadow .15s;
}
.it-how__step:hover {
    transform: translateY(-2px);
    box-shadow: var(--it-shadow-md);
}
.it-how__badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px 6px 6px;
    border-radius: 12px;
    margin-bottom: 14px;
    font-weight: 700;
}
.it-how__num {
    display: grid;
    place-items: center;
    width: 28px; height: 28px;
    background: currentColor;
    color: #fff;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 700;
}
.it-how__num::first-letter { color: #fff; }
.it-how__badge .it-how__icon svg { width: 20px; height: 20px; }
.it-how__title {
    margin: 0 0 6px;
    font-size: 17px;
    font-weight: 700;
    color: var(--it-slate-900);
    letter-spacing: -0.2px;
}
.it-how__body {
    margin: 0;
    font-size: 14px;
    line-height: 1.55;
    color: var(--it-slate-500);
}

/* ==================== Features grid ==================== */

.it-features {
    max-width: 1100px;
    margin: 0 auto 48px;
    padding: 0 20px;
}
.it-features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}
.it-features__col {
    background: #fff;
    border: 1px solid var(--it-slate-200);
    border-radius: var(--it-radius);
    padding: 26px 24px;
    transition: transform .15s, box-shadow .15s;
}
.it-features__col:hover {
    transform: translateY(-2px);
    box-shadow: var(--it-shadow-md);
}
.it-features__col--highlight {
    background: linear-gradient(180deg, #fff 0%, var(--it-purple-soft) 100%);
    border-color: #e9d5ff;
}
.it-features__mark {
    display: grid;
    place-items: center;
    width: 48px; height: 48px;
    border-radius: 12px;
    margin-bottom: 14px;
}
.it-features__mark svg { width: 24px; height: 24px; }
.it-features__mark--blue   { background: var(--it-blue-soft);   color: var(--it-blue); }
.it-features__mark--purple { background: #ede9fe;               color: var(--it-purple); }
.it-features__mark--orange { background: var(--it-orange-soft); color: var(--it-orange); }
.it-features__title {
    margin: 0 0 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--it-slate-900);
    letter-spacing: -0.2px;
}
.it-features__list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.it-features__list li {
    position: relative;
    padding: 8px 0 8px 22px;
    font-size: 14px;
    line-height: 1.55;
    color: var(--it-slate-600);
    border-top: 1px solid var(--it-slate-100);
}
.it-features__list li:first-child { border-top: 0; padding-top: 4px; }
.it-features__list li::before {
    content: '';
    position: absolute;
    left: 2px;
    top: 15px;
    width: 8px; height: 8px;
    border-radius: 2px;
    background: currentColor;
    opacity: .35;
}
.it-features__list--links li a {
    color: var(--it-blue);
    text-decoration: none;
    font-weight: 600;
}
.it-features__list--links li a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ==================== FAQ ==================== */

.it-faq {
    max-width: 780px;
    margin: 24px auto;
    padding: 0 20px;
}
.it-faq__item {
    background: #fff;
    border: 1px solid var(--it-slate-200);
    border-radius: 10px;
    margin-bottom: 10px;
    overflow: hidden;
    transition: box-shadow .15s;
}
.it-faq__item[open] {
    box-shadow: var(--it-shadow-md);
    border-color: var(--it-slate-300);
}
.it-faq__q {
    padding: 16px 44px 16px 20px;
    font-size: 15px;
    font-weight: 600;
    color: var(--it-slate-900);
    cursor: pointer;
    position: relative;
    list-style: none;
}
.it-faq__q::-webkit-details-marker { display: none; }
.it-faq__q::after {
    content: '+';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 24px;
    font-weight: 300;
    color: var(--it-slate-500);
}
.it-faq__item[open] .it-faq__q::after { content: '−'; }
.it-faq__a {
    padding: 0 20px 18px;
    color: var(--it-slate-600);
    font-size: 14px;
    line-height: 1.65;
}

/* ==================== Doc pages ==================== */

.it-doc {
    max-width: 780px;
    margin: 20px auto 40px;
    padding: 0 20px;
    color: var(--it-slate-700);
}
.it-doc h2 {
    color: var(--it-slate-900);
    font-size: 20px;
    margin: 28px 0 10px;
    letter-spacing: -0.2px;
}
.it-doc p, .it-doc ul, .it-doc ol {
    font-size: 15px;
    line-height: 1.65;
    margin: 0 0 14px;
}
.it-doc ul, .it-doc ol { padding-left: 22px; }

/* ==================== Info block (landing pages) ==================== */

.it-info {
    max-width: 780px;
    margin: 30px auto;
    padding: 0 20px;
    color: var(--it-slate-700);
}
.it-info h2 {
    color: var(--it-slate-900);
    font-size: 18px;
    margin: 24px 0 8px;
    letter-spacing: -0.2px;
}
.it-info p, .it-info ul, .it-info ol {
    font-size: 15px;
    line-height: 1.65;
    margin: 0 0 12px;
}
.it-info ol { padding-left: 22px; }
.it-info ul { list-style: none; padding-left: 0; }
.it-info ul li {
    padding: 4px 0 4px 22px;
    position: relative;
}
.it-info ul li::before {
    content: '';
    position: absolute;
    left: 0; top: 14px;
    width: 8px; height: 8px;
    border-radius: 2px;
    background: var(--it-blue);
    opacity: .8;
}

/* ==================== Contact form ==================== */

.it-contact {
    max-width: 640px;
    margin: 20px auto;
    background: #fff;
    border: 1px solid var(--it-slate-200);
    border-radius: var(--it-radius);
    padding: 28px;
    box-shadow: var(--it-shadow-sm);
}
.it-contact__row {
    display: flex;
    flex-direction: column;
    margin-bottom: 14px;
}
.it-contact__row label {
    font-size: 13px;
    font-weight: 600;
    color: var(--it-slate-700);
    margin-bottom: 6px;
}
.it-contact input[type="text"],
.it-contact input[type="email"],
.it-contact textarea {
    padding: 10px 14px;
    border: 1px solid var(--it-slate-300);
    border-radius: 8px;
    font-size: 15px;
    color: var(--it-slate-900);
    font-family: inherit;
    background: #fff;
    transition: border-color .15s, box-shadow .15s;
}
.it-contact input:focus,
.it-contact textarea:focus {
    outline: none;
    border-color: var(--it-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .18);
}
.it-contact__privacy {
    font-size: 12px;
    color: var(--it-slate-500);
    margin: 0 0 16px;
}

.it-notice {
    max-width: 640px;
    margin: 18px auto;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
}
.it-notice--ok  { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.it-notice--err { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }

/* ==================== Disclaimer ==================== */

.it-disclaimer {
    max-width: 1100px;
    margin: 32px auto 0;
    padding: 16px 20px;
    font-size: 12px;
    line-height: 1.6;
    color: var(--it-slate-500);
    background: var(--it-slate-50);
    border: 1px solid var(--it-slate-200);
    border-radius: 10px;
    text-align: center;
}

/* ==================== Ad slots ==================== */

.it-ad {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 20px auto;
    padding: 8px;
    background: #f8fafc;
    border: 1px dashed var(--it-slate-300);
    border-radius: 10px;
    color: var(--it-slate-400);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    overflow: hidden;
    min-height: 90px;
}
.it-ad img {
    max-width: 100%;
    height: auto;
    display: block;
}
.it-ad__owner { display: block; line-height: 0; }
.it-ad__hint  { opacity: .6; }

.it-ad--header_leaderboard,
.it-ad--footer_leaderboard { max-width: 728px; min-height: 90px; }
.it-ad--left_top_sidebar,
.it-ad--right_top_sidebar,
.it-ad--left_sticky,
.it-ad--right_sticky      { max-width: 300px; min-height: 250px; }
.it-ad--after_upload,
.it-ad--after_content     { max-width: 720px; min-height: 90px; }
.it-ad--mid_content       { max-width: 336px; min-height: 280px; }

@media (min-width: 1180px) {
    .it-ad--left_sticky, .it-ad--right_sticky {
        position: sticky;
        top: 20px;
    }
}
@media (max-width: 1024px) {
    .it-ad--left_top_sidebar,
    .it-ad--right_top_sidebar,
    .it-ad--left_sticky,
    .it-ad--right_sticky { display: none; }
}

/* ==================== Responsive ==================== */

@media (max-width: 520px) {
    .it-dropzone       { min-height: 260px; padding: 24px 14px; }
    .it-dropzone__title { font-size: 17px; }
    .it-hero__title    { font-size: 26px; }
    .it-section-title  { font-size: 24px; }
    .it-card--processing,
    .it-card--ready,
    .it-card--failed   { min-height: 260px; padding: 28px 18px; }
    .it-card           { padding: 20px; }
    .it-card--upload   { padding: 16px; }
    .it-doc h2, .it-info h2 { font-size: 17px; }
    .it-contact        { padding: 20px; }
}