/* SemperMail — Dark Glassmorphism Theme (WebForensik-Design-Linie) */

/* ===== Self-hosted Inter ===== */
@font-face { font-family:'Inter'; font-style:normal; font-weight:400; font-display:swap; src:url('fonts/inter/inter-latin-400.woff2') format('woff2'); unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family:'Inter'; font-style:normal; font-weight:400; font-display:swap; src:url('fonts/inter/inter-latin-ext-400.woff2') format('woff2'); unicode-range:U+0100-024F,U+0259,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family:'Inter'; font-style:normal; font-weight:600; font-display:swap; src:url('fonts/inter/inter-latin-600.woff2') format('woff2'); unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family:'Inter'; font-style:normal; font-weight:600; font-display:swap; src:url('fonts/inter/inter-latin-ext-600.woff2') format('woff2'); unicode-range:U+0100-024F,U+0259,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family:'Inter'; font-style:normal; font-weight:700; font-display:swap; src:url('fonts/inter/inter-latin-700.woff2') format('woff2'); unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family:'Inter'; font-style:normal; font-weight:700; font-display:swap; src:url('fonts/inter/inter-latin-ext-700.woff2') format('woff2'); unicode-range:U+0100-024F,U+0259,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family:'Inter'; font-style:normal; font-weight:800; font-display:swap; src:url('fonts/inter/inter-latin-800.woff2') format('woff2'); unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family:'Inter'; font-style:normal; font-weight:800; font-display:swap; src:url('fonts/inter/inter-latin-ext-800.woff2') format('woff2'); unicode-range:U+0100-024F,U+0259,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family:'Inter'; font-style:normal; font-weight:900; font-display:swap; src:url('fonts/inter/inter-latin-900.woff2') format('woff2'); unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family:'Inter'; font-style:normal; font-weight:900; font-display:swap; src:url('fonts/inter/inter-latin-ext-900.woff2') format('woff2'); unicode-range:U+0100-024F,U+0259,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF; }

:root {
    --neon: #9EFF00;
    --neon-soft: rgba(158, 255, 0, .18);
    --neon-glow: rgba(158, 255, 0, .25);
    --bg: #040404;
    --bg2: #0b0b0b;
    --text: #fff;
    --muted: rgba(255, 255, 255, .82);
    --muted-2: rgba(255, 255, 255, .60);
    --glass: rgba(255, 255, 255, .035);
    --glass-2: rgba(255, 255, 255, .055);
    --border: rgba(255, 255, 255, .11);
    --border-light: rgba(255, 255, 255, .06);
    --shadow: 0 24px 80px rgba(0, 0, 0, .42);
    --radius: 24px;
    --radius-sm: 16px;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --score-red: #FF4444;
    --score-yellow: #FFBF00;
    --score-green: #9EFF00;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-main);
    background: var(--bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.6;
    min-height: 100vh;
    background:
        radial-gradient(circle at 0% 0%, rgba(158, 255, 0, .08), transparent 28%),
        radial-gradient(circle at 100% 100%, rgba(158, 255, 0, .06), transparent 24%),
        linear-gradient(135deg, #030303 0%, #070707 42%, #020202 100%);
}

#bg-canvas { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; opacity: .78; }

.bg-glow {
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background:
        radial-gradient(circle at 8% 14%, rgba(158, 255, 0, .07), transparent 24%),
        radial-gradient(circle at 83% 82%, rgba(158, 255, 0, .05), transparent 22%),
        linear-gradient(180deg, rgba(255, 255, 255, .02), transparent 40%);
    mix-blend-mode: screen;
}

.noise {
    position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .035;
    background-image:
        radial-gradient(circle at 20% 20%, #fff 0 1px, transparent 1px),
        radial-gradient(circle at 80% 40%, #fff 0 1px, transparent 1px),
        radial-gradient(circle at 40% 80%, #fff 0 1px, transparent 1px),
        radial-gradient(circle at 60% 60%, #fff 0 1px, transparent 1px);
    background-size: 180px 180px, 220px 220px, 260px 260px, 300px 300px;
}

.container { position: relative; z-index: 1; max-width: 1100px; margin: 0 auto; padding: 2rem 1.5rem 3rem; }

a { color: var(--neon); text-decoration: none; }
a:hover { opacity: .85; text-decoration: underline; }

p { color: var(--muted); }
strong { color: var(--text); }

/* ===== Top-Nav ===== */
.top-nav { display: flex; align-items: center; justify-content: flex-end; gap: 1rem; font-size: .85rem; color: var(--muted-2); margin-bottom: 1rem; flex-wrap: wrap; }
.top-nav a { color: var(--muted-2); }
.top-nav a:hover { color: var(--neon); text-decoration: none; }

/* "App starten"-Button (neon, schwarze Schrift, Shimmer). color:#000 !important schlägt
   bewusst die generische .top-nav a:hover-Regel (sonst neon-auf-neon = unsichtbar). */
.nav-cta {
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    background: var(--neon);
    color: #000 !important;
    font-weight: 800;
    font-size: .8rem;
    letter-spacing: .07em;
    text-transform: uppercase;
    padding: .5rem 1.05rem;
    border-radius: var(--radius-sm);
    box-shadow: 0 0 18px var(--neon-glow);
    transition: box-shadow .2s ease, transform .2s ease, background .2s ease;
}
.nav-cta:hover {
    background: #b4ff33;
    color: #000 !important;
    box-shadow: 0 0 34px rgba(158, 255, 0, .6);
    transform: translateY(-1px);
    text-decoration: none;
}
.nav-cta::after {
    content: "";
    position: absolute;
    top: 0;
    left: -150%;
    width: 60%;
    height: 100%;
    background: linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, .7) 50%, transparent 100%);
    transform: skewX(-20deg);
    animation: nav-cta-shimmer 3.4s ease-in-out infinite;
    pointer-events: none;
}
@keyframes nav-cta-shimmer {
    0%   { left: -150%; }
    60%  { left: 150%; }
    100% { left: 150%; }
}
@media (prefers-reduced-motion: reduce) {
    .nav-cta::after { animation: none; }
}

/* ===== "So funktioniert": Animation volle Breite, darunter 3 Schritte nebeneinander ===== */
.funktion-anim {
    position: relative;
    width: 100%;
    aspect-ratio: 2.7;
    min-height: 260px;
    margin: 1.5rem 0;
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: radial-gradient(135% 150% at 50% 38%, #0b1510 0%, #060c09 52%, #03060a 100%);
    box-shadow: var(--shadow);
}
.funktion-anim canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.funktion-anim .scanlines {
    position: absolute; inset: 0; pointer-events: none; opacity: .5;
    background: repeating-linear-gradient(0deg, rgba(255, 255, 255, .014) 0, rgba(255, 255, 255, .014) 1px, transparent 2px, transparent 4px);
}
.funktion-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.8rem; }
.funktion-steps .step-item { margin: 0; }
@media (max-width: 820px) {
    .funktion-anim { aspect-ratio: 1.5; }
    .funktion-steps { grid-template-columns: 1fr; gap: 1rem; }
    .funktion-steps .step-item { margin: .4rem 0; }
}

/* ===== Hero ===== */
h1 { font-size: clamp(2.5em, 6vw, 4em); font-weight: 800; letter-spacing: -.04em; line-height: 1.05; margin-bottom: .6rem; }
.text-neon { color: var(--neon); text-shadow: 0 0 30px rgba(158, 255, 0, .35); }

.hero-claim { font-size: 1.35em; font-weight: 700; color: var(--text); margin-bottom: .5rem; }
.hero-sub { font-size: 1.05em; max-width: 46em; }

.lead-definition {
    margin: 1.4rem 0 0;
    padding: .85rem 1.1rem;
    border-left: 4px solid var(--neon);
    background: rgba(158, 255, 0, .05);
    border-radius: 0 8px 8px 0;
    color: var(--muted);
    max-width: 52em;
}

/* ===== Hero badges ===== */
.hero-badges { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 1.3rem; }
.badge {
    display: inline-block; padding: .35em .9em; font-size: .82rem; font-weight: 700;
    letter-spacing: .03em; border: 1px solid rgba(158, 255, 0, .28); border-radius: 999px;
    background: rgba(158, 255, 0, .06); color: var(--text);
}

/* ===== Ausfallsicherheits-Animation (Hero) ===== */
.blackout-hero {
    position: relative;
    margin: 1.5rem 0 .4rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background:
        radial-gradient(120% 150% at 50% 36%, rgba(158, 255, 0, .05), transparent 55%),
        linear-gradient(180deg, rgba(8, 16, 11, .66), rgba(3, 7, 6, .72));
    box-shadow: 0 16px 50px rgba(0, 0, 0, .38), inset 0 0 70px rgba(0, 0, 0, .35);
    overflow: hidden;
}
.blackout-hero::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px; z-index: 1;
    background: linear-gradient(90deg, var(--neon), transparent); opacity: .55;
}
.blackout-hero #blackout-canvas { display: block; width: 100%; height: 420px; }
.blackout-hero__cap {
    margin: 0; padding: .7rem 1.1rem .85rem; font-size: .82rem; color: var(--muted-2);
    border-top: 1px solid var(--border-light); background: rgba(0, 0, 0, .25);
}
@media (max-width: 720px) { .blackout-hero #blackout-canvas { height: 340px; } }
@media (max-width: 480px) { .blackout-hero #blackout-canvas { height: 300px; } }

/* ===== Sections ===== */
section { margin-top: 3rem; }
.section-header {
    position: relative; font-size: 1.5em; font-weight: 700; letter-spacing: -.02em;
    padding-top: 1.2rem; margin-bottom: 1rem;
}
.section-header::before {
    content: ""; position: absolute; top: 0; left: 0; width: 120px; height: 2px;
    background: linear-gradient(90deg, var(--neon), transparent);
}
.section-intro { max-width: 50em; }

/* ===== Tor-Karten (3 Stromnetze) ===== */
.gates-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; margin-top: 1.5rem; }
.gate-card {
    position: relative; border: 1px solid var(--border); border-radius: var(--radius-sm);
    background: var(--glass); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    padding: 1.4rem 1.2rem 1.2rem; box-shadow: 0 12px 40px rgba(0, 0, 0, .3);
    transition: border-color .25s, transform .25s, box-shadow .25s;
    overflow: hidden;
}
.gate-card::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, var(--neon), transparent); opacity: .6;
}
.gate-card:hover { border-color: rgba(158, 255, 0, .25); transform: translateY(-2px); box-shadow: 0 16px 50px rgba(0, 0, 0, .4), 0 0 20px rgba(158, 255, 0, .05); }
.gate-flag { font-size: 2rem; line-height: 1; margin-bottom: .5rem; }
.gate-title { font-weight: 800; font-size: 1.05rem; margin-bottom: .15rem; }
.gate-net { color: var(--neon); font-weight: 700; font-size: .88rem; margin-bottom: .5rem; }
.gate-desc { font-size: .88rem; color: var(--muted-2); }

.gates-note { margin-top: 1rem; font-size: .95rem; color: var(--muted); max-width: 52em; }

/* ===== Why-Cards ===== */
.why-card {
    border-left: 3px solid var(--neon); padding: .9rem 1.2rem; margin: 1rem 0;
    background: var(--glass); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.why-card h3 { font-weight: 800; font-size: 1.05em; margin-bottom: .25rem; }
.why-card p { font-size: .92rem; color: var(--muted-2); }

/* ===== Steps ===== */
.step-item { display: flex; gap: 1rem; align-items: flex-start; margin: 1.2rem 0; }
.step-number {
    background: var(--neon); color: #000; min-width: 2.5rem; height: 2.5rem;
    display: flex; align-items: center; justify-content: center; border-radius: 12px;
    font-weight: 900; font-size: 1.2em; box-shadow: 0 0 20px rgba(158, 255, 0, .25);
    flex-shrink: 0;
}
.step-item h3 { font-size: 1.1em; font-weight: 700; margin-bottom: .2rem; }
.step-item p { font-size: .95rem; color: var(--muted-2); }

/* ===== Feature-Grid ===== */
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; margin-top: 1.4rem; }
.feature-card {
    position: relative; border: 1px solid var(--border); border-radius: var(--radius-sm);
    background: var(--glass); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    padding: 1.2rem; box-shadow: 0 12px 40px rgba(0, 0, 0, .3);
    transition: border-color .25s, transform .25s, box-shadow .25s; overflow: hidden;
}
.feature-card::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, var(--neon), transparent); opacity: .6;
}
.feature-card:hover { border-color: rgba(158, 255, 0, .25); transform: translateY(-2px); box-shadow: 0 16px 50px rgba(0, 0, 0, .4), 0 0 20px rgba(158, 255, 0, .05); }
.feature-card h3 { font-weight: 800; font-size: .98rem; letter-spacing: .02em; margin-bottom: .3rem; }
.feature-card p { font-size: .88rem; color: var(--muted-2); }

/* ===== Who-List ===== */
.who-list { list-style: none; padding: 0; margin-top: .8rem; }
.who-list li { padding: .5rem 0 .5rem 1.8rem; position: relative; color: var(--muted); }
.who-list li::before {
    content: "\2713"; position: absolute; left: 0; color: var(--neon); font-weight: 700;
    text-shadow: 0 0 12px rgba(158, 255, 0, .5);
}

/* ===== CTA-Box ===== */
.cta-box {
    text-align: center; margin: 3rem 0 1rem; padding: 2.5rem 2rem;
    border: 1px solid rgba(158, 255, 0, .2); border-radius: var(--radius);
    background: linear-gradient(180deg, rgba(158, 255, 0, .06), rgba(158, 255, 0, .02));
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 0 40px rgba(158, 255, 0, .06);
}
.cta-box h2 { font-size: 1.5em; font-weight: 800; letter-spacing: -.02em; margin-bottom: .5rem; }
.cta-box p { max-width: 40em; margin: 0 auto .6rem; }
.cta-button {
    display: inline-block; margin-top: 1.2rem; padding: 1.05rem 2.5rem;
    background: var(--neon); color: #000 !important; font-weight: 900; font-size: 1.05rem;
    text-transform: uppercase; letter-spacing: .1em; border-radius: 999px;
    box-shadow: 0 0 24px rgba(158, 255, 0, .3); transition: background .2s, box-shadow .2s, transform .2s;
}
.cta-button:hover { background: #b4ff33; box-shadow: 0 0 40px rgba(158, 255, 0, .45); transform: translateY(-1px); text-decoration: none; opacity: 1; }
.cta-hint { font-size: .85rem; color: var(--muted-2); margin-top: .9rem; }

/* ===== FAQ ===== */
.faq details { border-bottom: 1px solid var(--border-light); padding: .8rem 0; }
.faq details:last-of-type { border-bottom: none; }
.faq summary { font-weight: 700; cursor: pointer; color: var(--text); list-style: none; display: flex; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "+"; color: var(--neon); font-weight: 800; width: 1.5rem; display: block; flex-shrink: 0; }
.faq details[open] summary::before { content: "\2212"; }
.faq summary:hover { color: var(--neon); }
.faq details p { margin: .5rem 0 .3rem 1.5rem; font-size: .92rem; color: var(--muted-2); }

/* ===== Footer ===== */
.site-footer {
    margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--border);
    font-size: .85rem; color: var(--muted-2);
    display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}
.site-footer a { color: var(--muted-2); }
.site-footer a:hover { color: var(--neon); text-decoration: none; }
.footer-meta { font-size: .78rem; opacity: .65; }
.footer-links { font-size: .78rem; }
.footer-links a { color: var(--neon); }

/* ===== Responsive ===== */
@media (max-width: 860px) {
    .gates-grid { grid-template-columns: 1fr; }
    .feature-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .container { padding: 1.2rem 1rem 2rem; }
    h1 { font-size: 2.4em; }
    .hero-claim { font-size: 1.15em; }
    .cta-box { padding: 1.8rem 1.2rem; }
    .site-footer { flex-direction: column; }
}