:root {
    --bg: #090a12;
    --panel: #111321;
    --panel-2: #171a2b;
    --text: #f8f8fc;
    --muted: #a6abc1;
    --border: rgba(255,255,255,.10);

    --primary: #6c63ff;
    --secondary: #a855f7;

    --shadow:
        0 18px 55px
        rgba(0,0,0,.20);
}

html[data-theme="light"] {
    --bg: #f8f9fc;
    --panel: #ffffff;
    --panel-2: #f1f3f9;
    --text: #111321;
    --muted: #62697d;
    --border: rgba(20,24,45,.12);

    --shadow:
        0 18px 45px
        rgba(28,32,60,.08);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background:
        radial-gradient(
            circle at 30% 0%,
            rgba(108,99,255,.12),
            transparent 35%
        ),
        var(--bg);

    color: var(--text);

    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    line-height: 1.6;
}

a {
    color: inherit;
}

button,
input,
textarea,
select {
    font: inherit;
}

.wrap {
    width:
        min(
            1160px,
            calc(100% - 34px)
        );

    margin:
        0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;

    backdrop-filter:
        blur(18px);

    background:
        rgba(9,10,18,.82);

    border-bottom:
        1px solid
        var(--border);
}

html[data-theme="light"]
.site-header {
    background:
        rgba(248,249,252,.86);
}

.header-inner {
    min-height: 70px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 20px;
}

.brand {
    text-decoration: none;
    font-weight: 900;
    font-size: 23px;
    letter-spacing: -.7px;
}

.brand span {
    background:
        linear-gradient(
            90deg,
            var(--primary),
            var(--secondary)
        );

    -webkit-background-clip:
        text;

    color:
        transparent;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 18px;
}

.main-nav a {
    color:
        var(--muted);

    text-decoration:
        none;

    font-size:
        14px;

    font-weight:
        700;
}

.main-nav a:hover {
    color:
        var(--text);
}

.theme-toggle {
    border:
        1px solid
        var(--border);

    width: 38px;
    height: 38px;

    border-radius:
        12px;

    background:
        var(--panel);

    color:
        var(--text);

    cursor:
        pointer;
}

.hero {
    padding:
        90px 0
        58px;
}

.hero-inner {
    max-width:
        920px;

    margin:
        0 auto;

    text-align:
        center;
}

.eyebrow {
    display:
        inline-flex;

    padding:
        7px 12px;

    border:
        1px solid
        var(--border);

    border-radius:
        999px;

    background:
        var(--panel);

    color:
        var(--muted);

    font-size:
        12px;

    font-weight:
        800;

    letter-spacing:
        .08em;

    text-transform:
        uppercase;
}

h1 {
    margin:
        18px 0;

    font-size:
        clamp(
            42px,
            7vw,
            76px
        );

    line-height:
        1.02;

    letter-spacing:
        -.055em;
}

.gradient-text {
    background:
        linear-gradient(
            90deg,
            var(--primary),
            var(--secondary)
        );

    -webkit-background-clip:
        text;

    color:
        transparent;
}

.lead {
    max-width:
        790px;

    margin:
        0 auto;

    color:
        var(--muted);

    font-size:
        clamp(
            17px,
            2.2vw,
            21px
        );
}

.hero-actions {
    margin-top:
        28px;

    display:
        flex;

    justify-content:
        center;

    flex-wrap:
        wrap;

    gap:
        12px;
}

.primary-btn,
.secondary-btn {
    display:
        inline-flex;

    align-items:
        center;

    justify-content:
        center;

    min-height:
        48px;

    padding:
        0 21px;

    border-radius:
        13px;

    text-decoration:
        none;

    font-weight:
        800;
}

.primary-btn {
    color:
        white;

    background:
        linear-gradient(
            90deg,
            var(--primary),
            var(--secondary)
        );

    border:
        0;
}

.secondary-btn {
    background:
        var(--panel);

    border:
        1px solid
        var(--border);
}

.section {
    padding:
        56px 0;
}

.section-head {
    max-width:
        750px;

    margin-bottom:
        28px;
}

.section-head h2 {
    margin:
        8px 0;

    font-size:
        clamp(
            30px,
            4vw,
            44px
        );

    letter-spacing:
        -.035em;
}

.section-head p {
    margin: 0;

    color:
        var(--muted);
}

.grid {
    display:
        grid;

    grid-template-columns:
        repeat(
            3,
            minmax(0,1fr)
        );

    gap:
        16px;
}

.card {
    min-height:
        180px;

    padding:
        24px;

    border:
        1px solid
        var(--border);

    border-radius:
        18px;

    background:
        linear-gradient(
            145deg,
            var(--panel),
            var(--panel-2)
        );

    box-shadow:
        var(--shadow);

    text-decoration:
        none;

    transition:
        transform .18s ease,
        border-color .18s ease;
}

.card:hover {
    transform:
        translateY(-3px);

    border-color:
        rgba(108,99,255,.55);
}

.card h3 {
    margin:
        10px 0 7px;

    font-size:
        20px;
}

.card p {
    margin:
        0;

    color:
        var(--muted);
}

.icon {
    font-size:
        26px;
}

.callout {
    padding:
        28px;

    border:
        1px solid
        var(--border);

    border-radius:
        20px;

    background:
        var(--panel);
}

.callout h2 {
    margin-top:
        0;
}

.callout p {
    color:
        var(--muted);
}

.tool-category {
    margin-bottom:
        48px;
}

.tool-category h2 {
    font-size:
        29px;
}

.coming-note {
    margin:
        30px 0;

    padding:
        18px 20px;

    border:
        1px solid
        var(--border);

    border-radius:
        14px;

    color:
        var(--muted);

    background:
        var(--panel);
}

.site-footer {
    margin-top:
        70px;

    border-top:
        1px solid
        var(--border);
}

.footer-grid {
    padding:
        34px 0;

    display:
        flex;

    justify-content:
        space-between;

    gap:
        35px;
}

.footer-grid p {
    max-width:
        500px;

    color:
        var(--muted);
}

.footer-brand {
    display:
        inline-block;
}

.footer-links {
    display:
        flex;

    flex-wrap:
        wrap;

    align-content:
        flex-start;

    justify-content:
        flex-end;

    gap:
        12px 20px;
}

.footer-links a {
    color:
        var(--muted);

    text-decoration:
        none;
}

.copyright {
    padding:
        20px 0 28px;

    border-top:
        1px solid
        var(--border);

    color:
        var(--muted);

    font-size:
        13px;
}

@media (
    max-width: 850px
) {
    .grid {
        grid-template-columns:
            repeat(
                2,
                minmax(0,1fr)
            );
    }
}

@media (
    max-width: 620px
) {
    .wrap {
        width:
            min(
                100% - 24px,
                1160px
            );
    }

    .header-inner {
        min-height:
            62px;
    }

    .main-nav {
        gap:
            11px;
    }

    .main-nav a:nth-child(1) {
        display:
            none;
    }

    .hero {
        padding-top:
            62px;
    }

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

    .footer-grid {
        flex-direction:
            column;
    }

    .footer-links {
        justify-content:
            flex-start;
    }
}

.campaign-shell {
    max-width: 1050px;
    margin: 0 auto;
}

.tool-panel {
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.form-grid {
    display: grid;
    grid-template-columns:
        repeat(2, minmax(0,1fr));
    gap: 18px;
}

.field {
    margin-bottom: 18px;
}

.field.full {
    grid-column: 1 / -1;
}

.field label {
    display: block;
    margin-bottom: 7px;
    font-weight: 800;
    font-size: 14px;
}

.field small {
    display: block;
    margin-top: 6px;
    color: var(--muted);
}

.field input,
.field textarea,
.field select {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 13px;
    background: var(--panel-2);
    color: var(--text);
    padding: 13px 14px;
    outline: none;
}

.field textarea {
    min-height: 150px;
    resize: vertical;
}

.field textarea.contact-input {
    min-height: 260px;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 13px;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
    border-color: var(--primary);
}

.form-section {
    margin-top: 30px;
    padding-top: 26px;
    border-top: 1px solid var(--border);
}

.form-section h2 {
    margin-top: 0;
    margin-bottom: 8px;
}

.form-section > p {
    margin-top: 0;
    color: var(--muted);
}

.merge-help {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin: 10px 0 18px;
}

.merge-help code {
    padding: 5px 8px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--panel-2);
}

.tool-status {
    margin-top: 16px;
    color: var(--muted);
}

.privacy-note {
    margin: 18px 0;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--panel-2);
    color: var(--muted);
    font-size: 14px;
}

.metric-grid {
    display: grid;
    grid-template-columns:
        repeat(6, minmax(0,1fr));
    gap: 12px;
    margin-bottom: 25px;
}

.metric {
    padding: 17px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--panel);
}

.metric strong {
    display: block;
    font-size: 26px;
}

.metric span {
    color: var(--muted);
    font-size: 12px;
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 15px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 850px;
}

.data-table th,
.data-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
    text-align: left;
    font-size: 13px;
}

.data-table th {
    background: var(--panel-2);
}

.data-table tr:last-child td {
    border-bottom: 0;
}

.message-preview {
    max-width: 300px;
    white-space: pre-wrap;
}

.ok-badge,
.bad-badge {
    display: inline-block;
    margin-left: 6px;
    padding: 2px 6px;
    border-radius: 999px;
    font-size: 10px;
    border: 1px solid var(--border);
}

.ok-badge {
    opacity: .85;
}

.bad-badge {
    opacity: .65;
}

.result-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px 0;
}

.result-actions button {
    cursor: pointer;
}

.result-block {
    margin-top: 35px;
}

.example-box {
    padding: 18px;
    border: 1px dashed var(--border);
    border-radius: 14px;
    background: var(--panel-2);
    overflow-x: auto;
}

.example-box pre {
    margin: 0;
}

@media (max-width: 950px) {
    .metric-grid {
        grid-template-columns:
            repeat(3, minmax(0,1fr));
    }
}

@media (max-width: 700px) {
    .form-grid {
        grid-template-columns: 1fr;
    }

    .field.full {
        grid-column: auto;
    }

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

    .tool-panel {
        padding: 18px;
    }
}

.tool-output {
    margin-top: 24px;
}

.result-card {
    margin-top: 18px;
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--panel-2);
}

.result-card textarea,
.result-card input {
    width: 100%;
    margin: 12px 0;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 11px;
    background: var(--panel);
    color: var(--text);
}

.result-card textarea {
    min-height: 130px;
    resize: vertical;
}

.link-list {
    display: grid;
    gap: 10px;
}

.link-row {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    align-items: center;

    padding: 14px;

    border: 1px solid var(--border);
    border-radius: 13px;

    background: var(--panel-2);
}

.link-row small {
    display: block;
    color: var(--muted);
}

.check-row {
    display: flex;
    gap: 12px;
    align-items: flex-start;

    margin-bottom: 10px;
    padding: 15px;

    border: 1px solid var(--border);
    border-radius: 12px;

    background: var(--panel-2);

    cursor: pointer;
}

.check-row input {
    margin-top: 4px;
}

.optional {
    color: var(--muted);
    font-weight: 400;
}

@media (max-width: 650px) {

    .link-row {
        align-items: stretch;
        flex-direction: column;
    }

}