:root,
[data-theme="light"] {
    --sf-bg: #f4f6f9;
    --sf-bg-elevated: #ffffff;
    --sf-ink: #0b1623;
    --sf-ink-soft: #5b6b7c;
    --sf-line: rgba(15, 42, 69, 0.1);
    /* ScriptFabrik Navy aus scriptfabrik.de Stats-Card */
    --sf-blue: #0f2a45;
    --sf-blue-hover: #0a1f35;
    --sf-blue-soft: rgba(15, 42, 69, 0.1);
    --sf-accent-glow: rgba(15, 42, 69, 0.22);
    --sf-nav-bg: rgba(255, 255, 255, 0.82);
    --sf-hero-glow-a: rgba(15, 42, 69, 0.12);
    --sf-hero-glow-b: rgba(15, 42, 69, 0.05);
    --sf-drop-bg: #f8fafc;
    --sf-footer-bg: rgba(15, 42, 69, 0.03);
    --sf-choice-selected: linear-gradient(165deg, rgba(15, 42, 69, 0.08) 0%, #fff 55%);
    --sf-radius: 22px;
    --sf-radius-sm: 14px;
    --sf-shadow: 0 20px 50px rgba(11, 22, 35, 0.08);
    --sf-font: "SF Pro Display", "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    --sf-display: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    --sf-max: 1120px;
}

[data-theme="dark"] {
    --sf-bg: #070d14;
    --sf-bg-elevated: #101a26;
    --sf-ink: #e8eef5;
    --sf-ink-soft: #9aabbd;
    --sf-line: rgba(232, 238, 245, 0.1);
    --sf-blue: #1a3a5c;
    --sf-blue-hover: #244a73;
    --sf-blue-soft: rgba(26, 58, 92, 0.35);
    --sf-accent-glow: rgba(90, 140, 200, 0.25);
    --sf-nav-bg: rgba(7, 13, 20, 0.85);
    --sf-hero-glow-a: rgba(40, 90, 140, 0.18);
    --sf-hero-glow-b: rgba(15, 42, 69, 0.2);
    --sf-drop-bg: #0c1520;
    --sf-footer-bg: rgba(0, 0, 0, 0.25);
    --sf-choice-selected: linear-gradient(165deg, rgba(26, 58, 92, 0.55) 0%, #101a26 60%);
    --sf-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    height: 100%;
}

body {
    margin: 0;
    min-height: 100%;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    font-family: var(--sf-font);
    color: var(--sf-ink);
    background:
        radial-gradient(1200px 600px at 80% -10%, var(--sf-hero-glow-a), transparent 60%),
        radial-gradient(900px 500px at 10% 0%, var(--sf-hero-glow-b), transparent 55%),
        linear-gradient(180deg, var(--sf-bg-elevated) 0%, var(--sf-bg) 42%, var(--sf-bg) 100%);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    transition: background 0.35s ease, color 0.25s ease;
}

body > main { flex: 1 0 auto; width: 100%; }
body > .sf-footer { flex-shrink: 0; margin-top: auto; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.sf-shell {
    width: min(100% - 2.5rem, var(--sf-max));
    margin-inline: auto;
}

/* Header */
.sf-nav {
    position: sticky;
    top: 0;
    z-index: 40;
    backdrop-filter: saturate(180%) blur(22px);
    -webkit-backdrop-filter: saturate(180%) blur(22px);
    background: var(--sf-nav-bg);
    border-bottom: 1px solid var(--sf-line);
    box-shadow: 0 8px 32px rgba(11, 22, 35, 0.04);
}

.sf-nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 3.85rem;
    gap: 1rem;
}

.sf-brand {
    font-weight: 650;
    letter-spacing: -0.03em;
    font-size: 1.12rem;
    display: inline-flex;
    align-items: baseline;
    gap: 0.35rem;
}

.sf-brand span {
    color: var(--sf-blue);
    font-weight: 700;
}

[data-theme="dark"] .sf-brand span { color: #7eb0e0; }

.sf-nav__links {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    font-size: 0.84rem;
    font-weight: 500;
    color: var(--sf-ink-soft);
}

.sf-nav__links a:not(.sf-btn):hover { color: var(--sf-blue); }

.sf-prefs {
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    padding: 0.18rem;
    border-radius: 980px;
    background: var(--sf-blue-soft);
    border: 1px solid var(--sf-line);
}

.sf-prefs a,
.sf-prefs button {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--sf-ink-soft);
    font: inherit;
    font-size: 0.72rem;
    font-weight: 650;
    letter-spacing: 0.04em;
    padding: 0.35rem 0.55rem;
    border-radius: 980px;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.sf-prefs a.is-active,
.sf-prefs button.is-active {
    background: var(--sf-blue);
    color: #fff;
}

.sf-prefs--theme button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    padding: 0;
}

.sf-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: 0;
    border-radius: 980px;
    padding: 0.85rem 1.45rem;
    font: inherit;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.sf-btn:active { transform: scale(0.98); }

.sf-btn--primary {
    background: var(--sf-blue);
    color: #fff;
    box-shadow: 0 10px 28px var(--sf-accent-glow);
}

.sf-btn--primary:hover { background: var(--sf-blue-hover); }

.sf-btn--ghost {
    background: var(--sf-blue-soft);
    color: var(--sf-ink);
}

.sf-btn--ghost:hover { background: var(--sf-line); }

.sf-nav .sf-btn--primary {
    padding: 0.55rem 1.1rem;
    font-size: 0.86rem;
}

/* Hero */
.sf-hero {
    padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(3rem, 6vw, 5rem);
    text-align: center;
}

.sf-hero__brand {
    font-size: clamp(2.6rem, 7vw, 5.2rem);
    line-height: 1.02;
    letter-spacing: -0.045em;
    font-family: var(--sf-display);
    font-weight: 700;
    margin: 0 0 1rem;
    color: var(--sf-blue);
    animation: sf-rise 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}

[data-theme="dark"] .sf-hero__brand { color: #e8eef5; }

.sf-hero__headline {
    margin: 0 auto 0.85rem;
    max-width: 18ch;
    font-size: clamp(1.35rem, 3vw, 2rem);
    font-weight: 560;
    letter-spacing: -0.03em;
    animation: sf-rise 0.9s 0.08s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.sf-hero__sub {
    margin: 0 auto 2rem;
    max-width: 38rem;
    color: var(--sf-ink-soft);
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    line-height: 1.45;
    animation: sf-rise 0.9s 0.16s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.sf-hero__cta { animation: sf-rise 0.9s 0.24s cubic-bezier(0.22, 1, 0.36, 1) both; }

.sf-platforms {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
    margin: 3.5rem auto 0;
    max-width: 760px;
    animation: sf-rise 1s 0.32s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.sf-platform {
    position: relative;
    overflow: hidden;
    border-radius: var(--sf-radius);
    min-height: 280px;
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    color: #fff;
    isolation: isolate;
    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.45s ease;
    box-shadow: var(--sf-shadow);
}

.sf-platform:hover { transform: translateY(-6px) scale(1.01); }
.sf-platform::before { content: ""; position: absolute; inset: 0; z-index: -1; }

.sf-platform--ios::before {
    background:
        linear-gradient(160deg, rgba(255, 255, 255, 0.12), transparent 45%),
        linear-gradient(180deg, #1a3a5c 0%, #0f2a45 55%, #071018 100%);
}

.sf-platform--android::before {
    background:
        linear-gradient(160deg, rgba(255, 255, 255, 0.14), transparent 40%),
        linear-gradient(180deg, #0f3d28 0%, #072016 55%, #03150d 100%);
}

.sf-platform__eyebrow {
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    opacity: 0.72;
    margin-bottom: 0.35rem;
}

.sf-platform__title {
    margin: 0;
    font-size: 1.75rem;
    letter-spacing: -0.03em;
}

.sf-platform__copy {
    margin: 0.4rem 0 0;
    opacity: 0.78;
    font-size: 0.95rem;
}

.sf-platform__glyph {
    position: absolute;
    top: 1.4rem;
    right: 1.4rem;
    width: 3rem;
    height: 3rem;
    opacity: 0.9;
}

.sf-platform__price {
    margin-top: 0.75rem;
    font-size: 0.95rem;
    font-weight: 650;
    opacity: 0.95;
}

.sf-section { padding: clamp(3rem, 7vw, 5.5rem) 0; }

.sf-section__title {
    margin: 0 0 0.6rem;
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    letter-spacing: -0.035em;
    text-align: center;
}

.sf-section__lead {
    margin: 0 auto 2.5rem;
    max-width: 34rem;
    text-align: center;
    color: var(--sf-ink-soft);
    line-height: 1.5;
}

.sf-steps {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.85rem;
}

.sf-step-card {
    background: var(--sf-bg-elevated);
    border: 1px solid var(--sf-line);
    border-radius: var(--sf-radius-sm);
    padding: 1.15rem;
    min-height: 140px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.sf-step-card:hover {
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--sf-blue) 35%, var(--sf-line));
}

.sf-step-card strong {
    display: block;
    font-size: 0.78rem;
    color: var(--sf-blue);
    margin-bottom: 0.45rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

[data-theme="dark"] .sf-step-card strong { color: #7eb0e0; }

.sf-step-card h3 {
    margin: 0 0 0.35rem;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
}

.sf-step-card p {
    margin: 0;
    color: var(--sf-ink-soft);
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Footer */
.sf-footer {
    border-top: 1px solid var(--sf-line);
    padding: 2.25rem 0 2.5rem;
    background: var(--sf-footer-bg);
    color: var(--sf-ink-soft);
    font-size: 0.82rem;
}

.sf-footer__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.sf-footer__brand {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.sf-footer__brand strong {
    color: var(--sf-ink);
    font-weight: 620;
    font-size: 0.92rem;
}

.sf-footer__meta { font-size: 0.78rem; opacity: 0.8; }

.sf-footer__links {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.sf-footer__links a:hover { color: var(--sf-blue); }

/* Wizard */
.sf-wizard {
    padding: clamp(2rem, 5vw, 3.5rem) 0 4rem;
}

.sf-wizard__layout {
    display: grid;
    gap: 1.25rem;
}

.sf-estimate {
    position: sticky;
    top: 4.5rem;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border-radius: 18px;
    background: var(--sf-bg-elevated);
    border: 1px solid var(--sf-line);
    box-shadow: var(--sf-shadow);
    animation: sf-rise 0.6s ease both;
}

.sf-estimate__label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--sf-ink-soft);
    font-weight: 650;
}

.sf-estimate__value {
    font-size: 1.55rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--sf-blue);
    transition: transform 0.25s ease;
}

[data-theme="dark"] .sf-estimate__value { color: #9ec4ea; }

.sf-estimate__value.is-pulse { transform: scale(1.06); }

.sf-estimate__hint {
    font-size: 0.8rem;
    color: var(--sf-ink-soft);
}

.sf-progress {
    display: flex;
    gap: 0.45rem;
    margin-bottom: 2rem;
}

.sf-progress__seg {
    flex: 1;
    height: 4px;
    border-radius: 999px;
    background: var(--sf-line);
    overflow: hidden;
}

.sf-progress__seg span {
    display: block;
    height: 100%;
    width: 0;
    background: var(--sf-blue);
    transition: width 0.45s ease;
}

.sf-progress__seg.is-done span,
.sf-progress__seg.is-current span { width: 100%; }

.sf-wizard__head { margin-bottom: 1.75rem; }

.sf-wizard__kicker {
    color: var(--sf-blue);
    font-size: 0.85rem;
    font-weight: 650;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin: 0 0 0.4rem;
}

[data-theme="dark"] .sf-wizard__kicker { color: #7eb0e0; }

.sf-wizard__title {
    margin: 0 0 0.45rem;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    letter-spacing: -0.035em;
}

.sf-wizard__hint { margin: 0; color: var(--sf-ink-soft); }

.sf-choice-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.sf-choice { position: relative; }

.sf-choice input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.sf-choice label {
    display: block;
    position: relative;
    height: 100%;
    background: var(--sf-bg-elevated);
    border: 2px solid var(--sf-line);
    border-radius: var(--sf-radius);
    padding: 1.35rem;
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.25s ease, transform 0.25s ease, background 0.2s ease;
}

.sf-choice label:hover {
    border-color: color-mix(in srgb, var(--sf-blue) 45%, var(--sf-line));
    box-shadow: 0 10px 28px var(--sf-accent-glow);
    transform: translateY(-2px);
}

.sf-choice input:checked + label {
    border-color: var(--sf-blue);
    background: var(--sf-choice-selected);
    box-shadow: 0 0 0 1px var(--sf-blue), 0 14px 36px var(--sf-accent-glow);
    transform: translateY(-2px);
}

.sf-choice input:checked + label::after {
    content: "";
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 1.35rem;
    height: 1.35rem;
    border-radius: 50%;
    background: var(--sf-blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M3.5 8.2l3 3 6-6.5' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 0.75rem no-repeat;
}

.sf-choice input:checked + label .sf-choice__title { color: var(--sf-blue); }
[data-theme="dark"] .sf-choice input:checked + label .sf-choice__title { color: #9ec4ea; }

.sf-choice__title {
    margin: 0 0 0.35rem;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
    padding-right: 1.5rem;
}

.sf-choice__desc {
    margin: 0;
    color: var(--sf-ink-soft);
    font-size: 0.92rem;
    line-height: 1.4;
}

.sf-choice__badge {
    display: inline-block;
    margin-top: 0.65rem;
    padding: 0.2rem 0.55rem;
    border-radius: 980px;
    background: var(--sf-blue-soft);
    color: var(--sf-blue);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.sf-form-panel {
    background: var(--sf-bg-elevated);
    border: 1px solid var(--sf-line);
    border-radius: var(--sf-radius);
    padding: 1.5rem;
    display: grid;
    gap: 1rem;
}

.sf-field label {
    display: block;
    font-size: 0.85rem;
    color: var(--sf-ink-soft);
    margin-bottom: 0.35rem;
}

.sf-field input,
.sf-field textarea,
.sf-field select {
    width: 100%;
    border: 1px solid var(--sf-line);
    border-radius: 12px;
    padding: 0.85rem 1rem;
    font: inherit;
    background: var(--sf-bg-elevated);
    color: var(--sf-ink);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.sf-field input:focus,
.sf-field textarea:focus {
    outline: none;
    border-color: var(--sf-blue);
    box-shadow: 0 0 0 3px var(--sf-blue-soft);
}

.sf-field input[type="color"] { padding: 0.35rem; height: 3rem; }
.sf-field textarea { min-height: 120px; resize: vertical; }

.sf-colors {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.sf-actions {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 1.75rem;
    flex-wrap: wrap;
}

.sf-errors {
    background: #fff2f2;
    border: 1px solid #ffd0d0;
    color: #b42318;
    border-radius: 12px;
    padding: 0.9rem 1rem;
    margin-bottom: 1rem;
}

[data-theme="dark"] .sf-errors {
    background: #3a1515;
    border-color: #7a3030;
    color: #ffb4b4;
}

.sf-errors ul { margin: 0; padding-left: 1.1rem; }

/* Dropzone */
.sf-dropzone {
    border: 1.5px dashed color-mix(in srgb, var(--sf-blue) 35%, var(--sf-line));
    border-radius: var(--sf-radius);
    background: var(--sf-drop-bg);
    padding: 1.75rem 1.25rem;
    text-align: center;
    transition: border-color 0.25s ease, background 0.25s ease, transform 0.25s ease;
}

.sf-dropzone.is-dragover {
    border-color: var(--sf-blue);
    background: var(--sf-blue-soft);
    transform: scale(1.01);
}

.sf-dropzone__title {
    margin: 0 0 0.35rem;
    font-weight: 650;
    letter-spacing: -0.02em;
}

.sf-dropzone__hint {
    margin: 0 0 1rem;
    color: var(--sf-ink-soft);
    font-size: 0.9rem;
}

.sf-dropzone__files {
    display: grid;
    gap: 0.45rem;
    margin-top: 1rem;
    text-align: left;
}

.sf-dropzone__file {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    padding: 0.55rem 0.75rem;
    border-radius: 10px;
    background: var(--sf-bg-elevated);
    border: 1px solid var(--sf-line);
    font-size: 0.85rem;
}

.sf-dropzone__file button {
    border: 0;
    background: transparent;
    color: var(--sf-ink-soft);
    font-size: 1.2rem;
    cursor: pointer;
}

.sf-existing {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.sf-existing a {
    font-size: 0.8rem;
    padding: 0.3rem 0.6rem;
    border-radius: 8px;
    background: var(--sf-blue-soft);
    color: var(--sf-blue);
}

.sf-thanks {
    text-align: center;
    padding: clamp(3rem, 8vw, 6rem) 0;
}

.sf-thanks__ref {
    display: inline-block;
    margin: 1rem 0 1.5rem;
    padding: 0.55rem 1rem;
    border-radius: 980px;
    background: var(--sf-blue-soft);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    letter-spacing: 0.06em;
}

.sf-login {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 2rem;
}

.sf-login__card {
    width: min(100%, 400px);
    background: var(--sf-bg-elevated);
    border-radius: var(--sf-radius);
    border: 1px solid var(--sf-line);
    box-shadow: var(--sf-shadow);
    padding: 2rem;
}

@keyframes sf-rise {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: none; }
}

@media (max-width: 860px) {
    .sf-platforms,
    .sf-steps,
    .sf-colors { grid-template-columns: 1fr; }
    .sf-nav__links .sf-hide-sm { display: none; }
    .sf-prefs { display: none; }
    .sf-prefs--mobile { display: inline-flex !important; }
}

.sf-prefs--mobile { display: none; }