/* ============================================================
   LANDING PAGE - Schulstube
   ============================================================
   Warm, geerdet, editorial. Baut auf tokens.css (Lexend +
   Farb-Tokens) auf, damit Light/Dark automatisch mitlaufen.
   Eigener lp-* Namespace, unabhaengig von schulstube.css.
   ============================================================ */

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

.lp {
    --lp-section-y: clamp(3.5rem, 7vw, 6.5rem);
    --lp-edge: clamp(1.25rem, 5vw, 2.5rem);
    --lp-max: 1120px;
    --lp-display: clamp(2.4rem, 1.6rem + 4vw, 4.25rem);

    margin: 0;
    font-family: var(--font-family);
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

/* Warme Atmosphaere + feine Papier-Koernung als fixes Overlay */
.lp::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(60% 50% at 18% -5%, color-mix(in oklab, var(--accent-primary) 16%, transparent), transparent 70%),
        radial-gradient(55% 45% at 100% 0%, color-mix(in oklab, var(--accent-secondary) 14%, transparent), transparent 65%);
}
.lp::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.5;
    mix-blend-mode: multiply;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
}
.lp > * { position: relative; z-index: 1; }

.lp-wrap {
    width: 100%;
    max-width: var(--lp-max);
    margin-inline: auto;
    padding-inline: var(--lp-edge);
}

/* ---------- Typografie ---------- */
.lp h1, .lp h2, .lp h3 { margin: 0; line-height: 1.08; letter-spacing: -0.02em; font-weight: var(--weight-semibold); }
.lp p { margin: 0; }
.lp a { color: inherit; text-decoration: none; }

.lp-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--type-footnote);
    font-weight: var(--weight-semibold);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-primary);
}
.lp-eyebrow::before {
    content: "";
    width: 1.75rem;
    height: 1px;
    background: currentColor;
    opacity: 0.5;
}

/* ---------- Buttons ---------- */
.lp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.5rem;
    border-radius: var(--radius-full);
    font-size: var(--type-callout);
    font-weight: var(--weight-semibold);
    font-family: inherit;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-default), background var(--transition-fast);
}
.lp-btn:active { transform: translateY(1px); }
.lp-btn-primary {
    background: var(--accent-primary);
    color: var(--text-on-accent);
    box-shadow: var(--shadow-md);
}
.lp-btn-primary:hover {
    background: var(--accent-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}
.lp-btn-ghost {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-strong);
}
.lp-btn-ghost:hover { background: var(--bg-secondary); border-color: var(--accent-primary); }

/* ---------- Nav ---------- */
.lp-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem var(--lp-edge);
    backdrop-filter: saturate(1.4) blur(12px);
    background: color-mix(in oklab, var(--bg-primary) 80%, transparent);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-default), background var(--transition-default);
}
.lp-nav.is-scrolled {
    border-bottom-color: var(--border-subtle);
    background: color-mix(in oklab, var(--bg-primary) 92%, transparent);
}
.lp-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: var(--weight-bold);
    font-size: var(--type-headline);
    letter-spacing: -0.01em;
}
.lp-brand-mark {
    display: grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-md);
    background: var(--accent-primary);
    color: var(--text-on-accent);
    box-shadow: var(--shadow-sm);
}
.lp-brand-img {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-sm);
    display: block;
    flex: none;
}
.lp-nav-links { display: flex; align-items: center; gap: 0.4rem; }
.lp-nav-login {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: var(--type-subhead);
    font-weight: var(--weight-medium);
    color: var(--text-secondary);
    transition: color var(--transition-fast), background var(--transition-fast);
}
.lp-nav-login:hover { color: var(--text-primary); background: var(--bg-secondary); }

/* ---------- Hero ---------- */
.lp-hero {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: center;
    padding-block: clamp(2.5rem, 6vw, 5rem) var(--lp-section-y);
}
.lp-hero-title {
    font-size: var(--lp-display);
    font-weight: var(--weight-bold);
    margin-top: 1.25rem;
    text-wrap: balance;
}
.lp-hero-title em {
    font-style: normal;
    color: var(--accent-primary);
    position: relative;
}
.lp-hero-lead {
    margin-top: 1.5rem;
    font-size: var(--type-title-3);
    color: var(--text-secondary);
    max-width: 34ch;
    font-weight: var(--weight-regular);
}
.lp-hero-cta {
    margin-top: 2.25rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
}
.lp-hero-note {
    margin-top: 1.25rem;
    font-size: var(--type-footnote);
    color: var(--text-tertiary);
}

/* Produkt-Vorschau: eine stilisierte Wochenplan-Karte (CSS-only) */
.lp-preview {
    position: relative;
    border-radius: var(--radius-2xl);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-xl);
    padding: 1.25rem;
    transform: rotate(1.4deg);
    transition: transform var(--transition-slow);
}
.lp-preview:hover { transform: rotate(0deg) translateY(-4px); }
.lp-preview::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: inset 0 1px 0 color-mix(in oklab, #fff 50%, transparent);
    pointer-events: none;
}
.lp-preview-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.25rem 0.5rem 0.9rem;
    border-bottom: 1px solid var(--border-subtle);
}
.lp-preview-head strong { font-size: var(--type-subhead); }
.lp-preview-head span { font-size: var(--type-caption); color: var(--text-tertiary); }
.lp-preview-grid { display: grid; gap: 0.5rem; padding-top: 0.9rem; }
.lp-slot {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    font-size: var(--type-footnote);
}
.lp-slot-dot { width: 0.6rem; height: 0.6rem; border-radius: var(--radius-full); flex: none; }
.lp-slot-label { font-weight: var(--weight-medium); }
.lp-slot-time { margin-left: auto; font-size: var(--type-caption); color: var(--text-tertiary); }
.lp-slot.is-done { opacity: 0.62; }
.lp-slot.is-done .lp-slot-label { text-decoration: line-through; text-decoration-color: var(--text-tertiary); }
.lp-check {
    margin-left: auto;
    width: 1.15rem; height: 1.15rem;
    border-radius: var(--radius-full);
    display: grid; place-items: center;
    background: var(--color-success);
    color: #fff;
    flex: none;
}

/* ---------- Section scaffolding ---------- */
.lp-section { padding-block: var(--lp-section-y); }
.lp-section--tint {
    background: var(--bg-secondary);
    border-block: 1px solid var(--border-subtle);
}
.lp-section-head { max-width: 40rem; margin-bottom: clamp(2.25rem, 4vw, 3.25rem); }
.lp-section-head h2 {
    font-size: clamp(1.7rem, 1.2rem + 1.8vw, 2.5rem);
    margin-top: 1rem;
}
.lp-section-head p {
    margin-top: 1rem;
    font-size: var(--type-body);
    color: var(--text-secondary);
}

/* ---------- Feature-Grid ---------- */
.lp-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
    gap: 1rem;
}
.lp-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    box-shadow: var(--shadow-xs);
    transition: transform var(--transition-default), box-shadow var(--transition-default), border-color var(--transition-default);
}
.lp-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-default);
}
.lp-card-icon {
    display: grid;
    place-items: center;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.1rem;
    color: var(--accent-primary);
    background: var(--accent-primary-subtle);
}
.lp-card h3 { font-size: var(--type-headline); }
.lp-card p { margin-top: 0.5rem; font-size: var(--type-subhead); color: var(--text-secondary); }

/* Akzent-Varianten fuer Icon-Kacheln (nutzen Fach-Tokens) */
.lp-card-icon.is-1 { color: var(--subject-deutsch); background: var(--subject-deutsch-bg); }
.lp-card-icon.is-2 { color: var(--subject-mathematik); background: var(--subject-mathematik-bg); }
.lp-card-icon.is-3 { color: var(--subject-nmg); background: var(--subject-nmg-bg); }
.lp-card-icon.is-4 { color: var(--subject-musik); background: var(--subject-musik-bg); }
.lp-card-icon.is-5 { color: var(--subject-bg); background: var(--subject-bg-bg); }
.lp-card-icon.is-6 { color: var(--subject-mi); background: var(--subject-mi-bg); }

/* ---------- Schritte ---------- */
.lp-steps { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); counter-reset: step; }
.lp-step { position: relative; padding-top: 2.75rem; }
.lp-step::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    top: 0; left: 0;
    width: 2.1rem; height: 2.1rem;
    display: grid; place-items: center;
    border-radius: var(--radius-full);
    font-size: var(--type-subhead);
    font-weight: var(--weight-bold);
    color: var(--accent-secondary);
    background: var(--accent-secondary-subtle);
    border: 1px solid color-mix(in oklab, var(--accent-secondary) 30%, transparent);
}
.lp-step h3 { font-size: var(--type-headline); }
.lp-step p { margin-top: 0.5rem; font-size: var(--type-subhead); color: var(--text-secondary); }

/* ---------- Philosophie / Quote ---------- */
.lp-quote {
    max-width: 48rem;
    margin-inline: auto;
    text-align: center;
}
.lp-quote p {
    font-size: clamp(1.3rem, 1rem + 1.4vw, 1.95rem);
    font-weight: var(--weight-medium);
    line-height: 1.35;
    letter-spacing: -0.01em;
    text-wrap: balance;
}
.lp-quote footer {
    margin-top: 1.5rem;
    font-size: var(--type-subhead);
    color: var(--text-tertiary);
}

/* ---------- Preis ---------- */
.lp-price-wrap { display: grid; grid-template-columns: 1fr; place-items: center; }
.lp-price {
    width: min(100%, 26rem);
    background: var(--bg-elevated);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    padding: 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.lp-price::before {
    content: "";
    position: absolute;
    inset-inline: 0; top: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
}
.lp-price-amount {
    font-size: clamp(3rem, 2rem + 4vw, 4rem);
    font-weight: var(--weight-bold);
    letter-spacing: -0.03em;
    line-height: 1;
}
.lp-price-amount sup { font-size: 1.1rem; font-weight: var(--weight-semibold); color: var(--text-secondary); vertical-align: 0.9em; margin-right: 0.15rem; }
.lp-price-cycle { color: var(--text-tertiary); font-size: var(--type-subhead); margin-top: 0.4rem; }
.lp-price-list { list-style: none; margin: 1.75rem 0; padding: 0; display: grid; gap: 0.7rem; text-align: left; }
.lp-price-list li { display: flex; align-items: flex-start; gap: 0.65rem; font-size: var(--type-subhead); }
.lp-price-list svg { color: var(--color-success); flex: none; margin-top: 0.15rem; }

/* ---------- Interesse-Formular ---------- */
.lp-signup {
    max-width: 38rem;
    margin-inline: auto;
    text-align: center;
}
.lp-form {
    margin-top: 2rem;
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    justify-content: center;
}
.lp-form-row { display: flex; gap: 0.6rem; width: 100%; flex-wrap: wrap; }
.lp-input {
    flex: 1 1 14rem;
    min-width: 0;
    padding: 0.85rem 1.1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-default);
    background: var(--bg-elevated);
    color: var(--text-primary);
    font-family: inherit;
    font-size: var(--type-callout);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.lp-input::placeholder { color: var(--text-tertiary); }
.lp-input:focus { outline: none; border-color: var(--border-focus); box-shadow: var(--shadow-focus); }
.lp-form .lp-btn { flex: 0 0 auto; }
.lp-form-hint { margin-top: 1rem; font-size: var(--type-caption); color: var(--text-tertiary); }
/* Honeypot */
.lp-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.lp-flash {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    justify-content: center;
    margin-top: 1.5rem;
    padding: 0.9rem 1.25rem;
    border-radius: var(--radius-lg);
    font-size: var(--type-subhead);
    font-weight: var(--weight-medium);
}
.lp-flash-success { background: var(--color-success-bg); color: var(--color-success); }
.lp-flash-error { background: var(--color-error-bg); color: var(--color-error); }

/* ---------- Footer ---------- */
.lp-footer {
    border-top: 1px solid var(--border-subtle);
    padding-block: clamp(2.5rem, 5vw, 3.5rem);
    background: var(--bg-secondary);
}
.lp-footer-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    align-items: center;
    justify-content: space-between;
}
.lp-footer p { font-size: var(--type-footnote); color: var(--text-tertiary); }
.lp-footer-links { display: flex; gap: 1.25rem; font-size: var(--type-subhead); }
.lp-footer-links a { color: var(--text-secondary); transition: color var(--transition-fast); }
.lp-footer-links a:hover { color: var(--accent-primary); }

/* ---------- Load-Animation (staggered) ---------- */
@media (prefers-reduced-motion: no-preference) {
    .lp-reveal {
        opacity: 0;
        transform: translateY(16px);
        animation: lp-rise 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    }
    .lp-reveal[data-d="1"] { animation-delay: 0.05s; }
    .lp-reveal[data-d="2"] { animation-delay: 0.13s; }
    .lp-reveal[data-d="3"] { animation-delay: 0.21s; }
    .lp-reveal[data-d="4"] { animation-delay: 0.29s; }
    .lp-reveal[data-d="5"] { animation-delay: 0.37s; }
    @keyframes lp-rise {
        to { opacity: 1; transform: none; }
    }
    /* Scroll-getriggerte Sektionen */
    .lp-onscroll { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease-out, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1); }
    .lp-onscroll.is-in { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    .lp-hero { grid-template-columns: 1fr; }
    .lp-preview { transform: none; margin-top: 0.5rem; max-width: 26rem; }
    .lp-preview:hover { transform: translateY(-4px); }
}
@media (max-width: 560px) {
    .lp-nav { padding-inline: var(--lp-edge); }
    .lp-form-row { flex-direction: column; }
    .lp-form .lp-btn { width: 100%; }
}