:root {
    --bg: #f4f6fb;
    --bg-soft: #eef1f8;
    --panel: #ffffff;
    --panel-2: #f7f8fc;
    --border: #d8deea;
    --text: #1c2434;
    --muted: #5f6b85;
    --brand: #5b4cdb;
    --brand-2: #00b39a;
    --danger: #e5484d;
    --radius: 14px;
    --shadow: 0 8px 24px rgba(28, 36, 52, .08);
    --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
    font-family: var(--font);
    background: radial-gradient(1200px 600px at 80% -10%, #e4e9ff 0, var(--bg) 55%);
    color: var(--text);
    line-height: 1.55;
    min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, .85);
    border-bottom: 1px solid var(--border);
}
.site-header__inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; }
.brand__mark {
    width: 34px; height: 34px;
    display: grid; place-items: center;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--brand), var(--brand-2));
    color: #fff; font-weight: 800;
}
.brand__name { font-size: 1.05rem; letter-spacing: -.01em; }
@media (max-width: 480px) {
    .brand__name { font-size: .92rem; }
}
.lang-switch { display: inline-flex; gap: 6px; }
.lang-switch__link {
    padding: 6px 10px; border-radius: 8px; font-size: .82rem; font-weight: 600;
    color: var(--muted); border: 1px solid transparent;
}
.lang-switch__link.is-active { color: var(--text); background: var(--panel-2); border-color: var(--border); }

/* Layout */
.layout {
    max-width: 1180px;
    margin: 0 auto;
    padding: 28px 20px 60px;
}
.layout__content { min-width: 0; }

/* Hero */
.hero { margin-bottom: 34px; }
.hero__title { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 0 0 10px; letter-spacing: -.02em; }
.hero__subtitle { color: var(--muted); max-width: 640px; font-size: 1.05rem; margin: 0; }

/* Categories */
.category { margin-bottom: 42px; scroll-margin-top: 90px; }
.category__head { margin-bottom: 16px; }
.category__title { font-size: 1.3rem; margin: 0 0 4px; }
.category__desc { color: var(--muted); margin: 0; }

.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 14px;
}
.tool-card {
    display: flex; gap: 14px; align-items: flex-start;
    padding: 16px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 2px 8px rgba(28, 36, 52, .04);
    transition: transform .15s ease, border-color .15s ease, background .15s ease, box-shadow .15s ease;
}
.tool-card:hover { transform: translateY(-3px); border-color: var(--brand); background: var(--panel); box-shadow: var(--shadow); }
.tool-card__icon { font-size: 1.6rem; line-height: 1; }
.tool-card__body { display: flex; flex-direction: column; gap: 4px; }
.tool-card__name { font-weight: 600; }
.tool-card__desc { color: var(--muted); font-size: .88rem; }

/* Ad slots — header + footer only (IAB 728×90). */
.ad-slot {
    display: flex; align-items: center; justify-content: center;
    border: 1px dashed var(--border);
    border-radius: 12px;
    color: var(--muted);
    background: var(--bg-soft);
    overflow: hidden;
}
.ad-slot--header {
    max-width: 728px;
    margin: 14px auto 0;
    width: 100%;
    min-height: 90px;
    padding: 0;
}
.ad-slot--footer {
    max-width: 728px;
    margin: 0 auto 10px;
    width: 100%;
    min-height: 90px;
    padding: 0;
}
.ad-slot--sidebar,
.ad-slot--below_result { display: none; }
.ad-slot__placeholder { font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; opacity: .6; }

/* Tool page */
.tool__back { color: var(--muted); font-size: .9rem; display: inline-block; margin-bottom: 16px; }
.tool__back:hover { color: var(--text); }
.tool__head { display: flex; gap: 16px; align-items: center; margin-bottom: 22px; }
.tool__icon { font-size: 2.4rem; }
.tool__title { margin: 0; font-size: 1.5rem; }
.tool__seo-intro {
    color: var(--muted);
    max-width: 720px;
    margin: -8px 0 22px;
    font-size: .98rem;
}

.tool__grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 900px) { .tool__grid { grid-template-columns: 1fr 1fr; } }

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: var(--shadow);
}
.panel__head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 12px; }
.panel__title { margin: 0; font-size: 1.05rem; }
.panel__meta { color: var(--muted); font-size: .85rem; }

/* Tabs */
.tabs { display: inline-flex; background: var(--bg-soft); border-radius: 10px; padding: 4px; margin-bottom: 12px; }
.tabs__btn {
    border: 0; background: transparent; color: var(--muted);
    padding: 8px 14px; border-radius: 8px; cursor: pointer; font-weight: 600; font-size: .9rem;
}
.tabs--compact { margin-bottom: 8px; }
.tabs--compact .tabs__btn { padding: 6px 12px; font-size: .88rem; }
.tabs__btn.is-active { background: var(--panel); color: var(--text); box-shadow: 0 1px 3px rgba(28, 36, 52, .08); }

[hidden] { display: none !important; }
.qr-mode-panel.is-hidden { display: none !important; }
.is-hidden { display: none !important; }

.input-text {
    width: 100%; min-height: 200px; resize: vertical;
    background: var(--bg-soft); color: var(--text);
    border: 1px solid var(--border); border-radius: 10px;
    padding: 12px; font: .92rem/1.5 var(--font);
}

.dropzone {
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
    min-height: 200px; padding: 20px; cursor: pointer;
    border: 2px dashed var(--border); border-radius: 10px; background: var(--bg-soft);
    text-align: center; transition: border-color .15s ease, background .15s ease;
}
.dropzone.is-drag { border-color: var(--brand); background: var(--panel-2); }
.dropzone__icon { font-size: 1.8rem; }
.dropzone__hint { color: var(--muted); }
.dropzone__file { font-size: .85rem; color: var(--brand); font-weight: 600; }

.checkbox { display: inline-flex; align-items: center; gap: 8px; margin: 14px 0; color: var(--muted); font-size: .9rem; cursor: pointer; }
.checkbox input { accent-color: var(--brand); }

.options { display: flex; flex-direction: column; gap: 12px; margin-bottom: 16px; }
.options__row { display: flex; flex-direction: column; gap: 6px; }
.options__label { font-size: .85rem; color: var(--muted); }
.options__control {
    background: var(--bg-soft); color: var(--text);
    border: 1px solid var(--border); border-radius: 8px; padding: 9px 10px; font: inherit; font-size: .92rem;
}
input[type="checkbox"].options__control { width: 18px; height: 18px; accent-color: var(--brand); }

/* Buttons */
.btn {
    border: 1px solid var(--border); background: var(--panel); color: var(--text);
    padding: 10px 16px; border-radius: 10px; cursor: pointer; font-weight: 600; font-size: .92rem;
    transition: transform .1s ease, opacity .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); border-color: var(--brand); background: var(--panel-2); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn--primary { width: 100%; background: linear-gradient(135deg, var(--brand), var(--brand-2)); border: 0; color: #fff; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }

/* Result table */
.result { overflow: auto; max-height: 460px; border: 1px solid var(--border); border-radius: 10px; }
.result__empty { color: var(--muted); padding: 24px; text-align: center; margin: 0; }
.result table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.result th, .result td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.result th { position: sticky; top: 0; background: var(--bg-soft); z-index: 1; }
.result tr:hover td { background: var(--panel-2); }
.result__more { padding: 10px; text-align: center; color: var(--muted); font-size: .85rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); margin-top: 40px; }
.site-footer__inner { max-width: 1180px; margin: 0 auto; padding: 24px 20px; color: var(--muted); font-size: .88rem; }
.site-footer__brand { color: var(--text); font-weight: 600; margin: 0 0 4px; }
.site-footer__note { margin: 0 0 10px; max-width: 640px; }
.site-footer__copy { margin: 0; opacity: .7; }

/* Error */
.error-page { text-align: center; padding: 60px 20px; }
.error-page__code { font-size: 4rem; margin: 0; background: linear-gradient(135deg, var(--brand), var(--brand-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.error-page__msg { color: var(--muted); margin: 0 0 20px; }

.toast {
    position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px);
    background: var(--panel); border: 1px solid var(--border); color: var(--text);
    padding: 10px 18px; border-radius: 10px; box-shadow: var(--shadow);
    opacity: 0; transition: opacity .2s ease, transform .2s ease; pointer-events: none;
}
.toast.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Custom tool UIs */
.hint { color: var(--muted); font-size: .85rem; margin: 8px 0 0; }
.input-text--short { min-height: 110px; }
.options__row--inline { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.options__control--color { padding: 4px; height: 42px; cursor: pointer; }
input[type="range"].options__control {
    padding: 0;
    height: 28px;
    accent-color: var(--brand);
}
.dropzone--compact { min-height: 110px; }

.qr-preview { min-height: 280px; display: flex; align-items: center; justify-content: center; }
.qr-preview__single { display: flex; justify-content: center; }
.qr-preview__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 14px;
    width: 100%;
}
.qr-preview__cell { text-align: center; }
.qr-preview__label {
    display: block; margin-top: 6px; font-size: .75rem; color: var(--muted);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.cert-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}
@media (min-width: 960px) {
    .cert-layout { grid-template-columns: 360px 1fr; align-items: start; }
    .tool--custom .cert-layout { grid-template-columns: min(420px, 38vw) 1fr; }
}
.cert-preview-wrap {
    position: relative;
    min-height: 280px;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: auto;
    padding: 12px;
}
.cert-canvas {
    max-width: 100%;
    height: auto;
    display: block;
    box-shadow: var(--shadow);
    cursor: crosshair;
}
.cert-preview-wrap .result__empty { position: absolute; }

/* +/- steppers */
.stepper {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 4px;
    width: 100%;
    justify-content: space-between;
}
.stepper__btn {
    width: 40px;
    height: 40px;
    border: 0;
    border-radius: 8px;
    background: var(--panel);
    color: var(--text);
    font-size: 1.15rem;
    font-weight: 700;
    cursor: pointer;
    line-height: 1;
    box-shadow: 0 1px 2px rgba(28, 36, 52, .06);
}
.stepper__btn:hover { background: var(--panel-2); color: var(--brand); }
.stepper__btn:active { transform: scale(.96); }
.stepper__value {
    flex: 1;
    text-align: center;
    font-weight: 600;
    font-size: .95rem;
    user-select: none;
}

/* Raffle / tombola */
.raffle-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}
@media (min-width: 960px) {
    .raffle-layout { grid-template-columns: 360px 1fr; align-items: start; }
}
.raffle-stage {
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at 50% 30%, #ebe4ff 0, var(--bg-soft) 55%);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
    margin-bottom: 16px;
}
.raffle-spinner {
    font-size: clamp(1.4rem, 3vw, 2.2rem);
    font-weight: 800;
    text-align: center;
    color: var(--text);
    min-height: 2.6em;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform .15s ease, color .15s ease;
}
.raffle-spinner.is-spinning { color: var(--brand); }
.raffle-spinner.is-winner {
    color: var(--brand-2);
    transform: scale(1.08);
}
.raffle-podium {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.raffle-podium__item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 10px;
}
.raffle-podium__item.is-first {
    background: linear-gradient(135deg, rgba(91,76,219,.1), rgba(0,179,154,.1));
    border-color: var(--brand);
}
.raffle-podium__place {
    font-weight: 800;
    color: var(--brand);
    min-width: 64px;
}
.raffle-podium__name { font-weight: 600; }

.panel__hint {
    color: var(--muted);
    font-size: .92rem;
    margin: 0 0 16px;
    line-height: 1.5;
}
.dual-file {
    display: grid;
    gap: 16px;
    margin-bottom: 16px;
}
@media (min-width: 640px) {
    .dual-file { grid-template-columns: 1fr 1fr; }
}
.dual-file__block {
    padding: 14px;
    background: var(--bg-soft);
    border: 1px dashed var(--border);
    border-radius: 10px;
}
.dual-file__input {
    display: block;
    width: 100%;
    margin: 8px 0;
    font-size: .88rem;
}
.dual-file__name {
    display: block;
    font-size: .85rem;
    color: var(--muted);
    margin-bottom: 8px;
    word-break: break-all;
}

.badge-section {
    margin-bottom: 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0 12px 8px;
    background: var(--bg-soft);
}
.badge-section__title {
    cursor: pointer;
    font-weight: 700;
    font-size: .92rem;
    padding: 12px 0 8px;
    list-style: none;
}
.badge-section__title::-webkit-details-marker { display: none; }

.stepper--2d {
    flex-direction: column;
    width: 100%;
    max-width: 200px;
}
.stepper--2d .stepper__mid {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 4px;
}
.stepper--2d .stepper__value {
    min-width: 72px;
    text-align: center;
    font-size: .82rem;
}

.cert-preview-wrap--badge.is-adjust-photo .cert-canvas,
.cert-preview-wrap--badge.is-adjust-logo .cert-canvas { cursor: grab; }
.cert-preview-wrap--badge.is-adjust-photo .cert-canvas:active,
.cert-preview-wrap--badge.is-adjust-logo .cert-canvas:active { cursor: grabbing; }
.cert-preview-wrap--badge.is-adjust-name .cert-canvas { cursor: ns-resize; }

.badge-preview-panel { display: flex; flex-direction: column; }
.badge-preview-hint { margin: 8px 0 0; text-align: center; }

.badge-inspector {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.badge-inspector__title {
    margin: 0 0 4px;
    font-size: .95rem;
    font-weight: 700;
}
.badge-el-card {
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-soft);
    overflow: hidden;
    transition: border-color .15s, box-shadow .15s;
}
.badge-el-card.is-selected {
    border-color: var(--brand-2);
    box-shadow: 0 0 0 1px rgba(0, 179, 154, .25);
}
.badge-el-card__head {
    width: 100%;
    border: 0;
    background: transparent;
    text-align: left;
    padding: 10px 12px;
    font-weight: 700;
    font-size: .88rem;
    cursor: pointer;
    color: var(--text);
}
.badge-el-card.is-selected .badge-el-card__head {
    color: var(--brand-2);
}
.badge-el-card__body {
    padding: 0 12px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.badge-range {
    display: grid;
    grid-template-columns: 72px 1fr 44px;
    align-items: center;
    gap: 8px;
    font-size: .85rem;
    color: var(--muted);
}
.badge-range input[type="range"] {
    width: 100%;
    accent-color: var(--brand-2);
}
.badge-range output {
    text-align: right;
    font-variant-numeric: tabular-nums;
    color: var(--text);
    font-size: .82rem;
}