/* ============================================
   RELAVO LANDING PAGE — CSS
   1:1 aus preview.html extrahiert
   ============================================ */

/* DM Sans (self-hosted, DSGVO-konform) */
@font-face {
    font-family: 'DM Sans';
    font-style: normal;
    font-weight: 100 1000;
    font-display: swap;
    src: url('../fonts/DMSans-Variable-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: 'DM Sans';
    font-style: normal;
    font-weight: 100 1000;
    font-display: swap;
    src: url('../fonts/DMSans-Variable-latin-ext.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
    --n900: #0A0A0A; --n800: #1A1A1E; --n700: #2D2D32;
    --n600: #3D3D42; --n500: #6B6B70; --n400: #9CA3AF;
    --n300: #D1D5DB; --n200: #E5E5E7; --n100: #F2F2F4;
    --n50: #FAFAFA; --white: #FFFFFF;
    --teal: #0D9488;
    --success: #22C55E; --warning: #F59E0B; --error: #EF4444; --info: #3B82F6;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { min-height: 700px; }
body {
    font-family: 'DM Sans', -apple-system, sans-serif;
    color: var(--n900); background: var(--n50);
    overflow-x: hidden; -webkit-font-smoothing: antialiased;
    min-height: 700px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* ====== HEADER ====== */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 9999;
    padding: 24px 64px;
    display: flex; align-items: center; justify-content: space-between;
    transition: all 0.4s ease;
    background: transparent;
}
.header::after {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 150%;
    pointer-events: none;
    z-index: -1;
    transition: background 0.4s ease;
}
.header--light::after, .header--glass::after {
    background: linear-gradient(to bottom, rgba(250,250,250,0.95) 0%, rgba(250,250,250,0.7) 50%, rgba(250,250,250,0) 100%);
}
.header--dark::after {
    background: linear-gradient(to bottom, rgba(10,10,10,0.95) 0%, rgba(10,10,10,0.7) 50%, rgba(10,10,10,0) 100%);
}
.header__logo { display: flex; align-items: center; text-decoration: none; }
.header__logo img { height: 52px; width: auto; transition: opacity 0.3s ease; }
.header__logo .logo-black { display: block; }
.header__logo .logo-white { display: none; }
.header--dark .header__logo .logo-black { display: none; }
.header--dark .header__logo .logo-white { display: block; }
.header__cta {
    padding: 14px 32px; border-radius: 100px;
    font-size: 0.95rem; font-weight: 600; text-decoration: none;
    transition: all 0.3s ease;
}
.header--light .header__cta, .header--glass .header__cta { background: var(--n900); color: var(--white); }
.header--light .header__cta:hover, .header--glass .header__cta:hover { background: var(--n700); transform: scale(1.05); }
.header--dark .header__cta { background: var(--white); color: var(--n900); }
.header--dark .header__cta:hover { background: var(--n200); transform: scale(1.05); }

/* ====== SECTIONS ====== */
.snap-section {
    min-height: 100vh;
    position: relative;
    display: flex; align-items: center;
    padding: 100px 48px;
    overflow: hidden;
    contain: layout style;
}

/* ====== HERO + CARD ZONE ====== */
.hero-zone {
    height: 100vh;
    position: relative;
    background: var(--n50);
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    overflow: visible;
    min-height: 0;
}
.hero__content-wrap {
    position: relative; z-index: 3;
    text-align: center; max-width: 880px;
    padding: 0 24px;
    padding-bottom: 12vh;
}

/* Business Card */
.hero__card-wrapper {
    position: absolute;
    bottom: -14vh;
    left: 0; right: 0;
    display: flex; justify-content: center;
    z-index: 2;
    pointer-events: none;
}
.bcard {
    --card-blend: 0;
    width: min(65vw, 55vh); max-width: 900px;
    height: min(38vw, 32vh); max-height: 530px;
    border-radius: 28px;
    background:
        linear-gradient(145deg, #2a2a30 0%, #0a0a0c 30%, #1f1f24 60%, #08080a 80%, #111114 100%);
    color: var(--white);
    padding: 0;
    display: flex; flex-direction: column; justify-content: flex-start;
    position: relative;
    overflow: clip;
    border: 1px solid rgba(255,255,255,0.06);
    box-shadow:
        0 30px 60px rgba(0,0,0,0.18),
        0 8px 20px rgba(0,0,0,0.1),
        inset 0 1px 0 rgba(255,255,255,0.08),
        inset 1px 0 0 rgba(255,255,255,0.05),
        inset -1px 0 0 rgba(255,255,255,0.05);
    transform: rotate(-4deg) scale(0.82);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    transform-origin: center center;
    will-change: transform, border-radius;
}
.bcard::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 90% 70% at 20% 10%, rgba(255,255,255,0.07) 0%, transparent 55%),
        radial-gradient(ellipse 60% 50% at 85% 90%, rgba(255,255,255,0.03) 0%, transparent 50%),
        radial-gradient(ellipse 40% 70% at 95% 50%, rgba(255,255,255,0.03) 0%, transparent 50%),
        linear-gradient(160deg, rgba(255,255,255,0.04) 0%, transparent 30%);
    pointer-events: none; z-index: 1;
    transition: opacity 0.3s;
}
.bcard__inner { display: contents; transition: opacity 0.1s; }
.bcard__section-content {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    padding: 100px 48px;
    opacity: 0;
    transition: opacity 0.1s;
    pointer-events: none;
}
.bcard__section-content.active {
    opacity: 1;
    pointer-events: auto;
}

.hero__content {
    position: relative; z-index: 2;
    text-align: center; max-width: 780px;
    margin: 0 auto;
}
.hero__headline {
    font-size: clamp(2rem, min(8.5vw, 8vh), 6.2rem);
    font-weight: 800; line-height: 1.02;
    letter-spacing: -0.05em; margin-bottom: min(28px, 3vh);
}
.hero__sub {
    font-size: clamp(0.85rem, min(1.6vw, 1.8vh), 1.3rem);
    color: var(--n500); line-height: 1.7;
    max-width: 600px; margin: 0 auto min(42px, 4vh);
}
.hero__cta-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
    padding: 18px 42px; background: var(--n900); color: var(--white);
    border-radius: 14px; font-size: 1.05rem; font-weight: 600;
    text-decoration: none; border: none; cursor: pointer;
    font-family: inherit; transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
}
.btn-primary:hover { background: var(--n700); transform: scale(1.05); box-shadow: 0 16px 40px rgba(0,0,0,0.15); }
.btn-secondary {
    padding: 18px 42px; background: transparent; color: var(--n900);
    border: 1.5px solid var(--n300); border-radius: 14px;
    font-size: 1.05rem; font-weight: 500; text-decoration: none;
    font-family: inherit; cursor: pointer; transition: all 0.3s ease;
}
.btn-secondary:hover { border-color: var(--n300); background: var(--n100); color: var(--n900); transform: scale(1.05); }
.hero__counter { margin-top: 32px; font-size: 0.95rem; color: var(--n400); }
.hero__counter strong { color: var(--n900); font-weight: 600; }

/* Hero entrance */
.hero-in { opacity: 0; transform: translateY(40px); animation: hIn 1s cubic-bezier(0.16,1,0.3,1) forwards; }
.hero-in--1 { animation-delay: 0.15s; }
.hero-in--2 { animation-delay: 0.3s; }
.hero-in--3 { animation-delay: 0.45s; }
@keyframes hIn { to { opacity: 1; transform: none; } }

/* ====== DARK / LIGHT / NEUTRAL SECTION ====== */
.section--dark {
    background: var(--n900); color: var(--white);
    border-radius: 40px 40px 0 0;
}
.section--light {
    background: var(--white);
    border-radius: 40px 40px 0 0;
}
.section--neutral {
    background: var(--n50);
    border-radius: 40px 40px 0 0;
}

.section__inner { max-width: 1140px; margin: 0 auto; width: 100%; }

.sec-eyebrow {
    font-size: 0.7rem; font-weight: 700;
    letter-spacing: 0.12em; text-transform: uppercase;
    margin-bottom: 16px; text-align: center;
}
.section--dark .sec-eyebrow { color: var(--n500); }
.section--light .sec-eyebrow, .section--neutral .sec-eyebrow { color: var(--n400); }

.sec-title {
    font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 800; text-align: center;
    letter-spacing: -0.04em; line-height: 1.1; margin-bottom: 16px;
}
.sec-sub {
    font-size: 1.05rem; text-align: center;
    max-width: 540px; margin: 0 auto 64px; line-height: 1.7;
}
.section--dark .sec-sub { color: var(--n400); }
.section--light .sec-sub, .section--neutral .sec-sub { color: var(--n500); }

/* ====== PROBLEM CARDS ====== */
.problems-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.p-card {
    background: var(--n800); border: none;
    border-radius: 20px; padding: 36px 32px;
    transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
}
.p-card:hover { background: var(--n700); transform: scale(1.05); }
.p-card__icon {
    width: 44px; height: 44px; background: var(--n700);
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px; font-size: 1.2rem;
}
.p-card:hover .p-card__icon { background: var(--n600); }
.p-card h3 { font-size: 1.15rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 10px; }
.p-card p { font-size: 0.9rem; color: var(--n400); line-height: 1.65; }

/* ====== FEATURES ====== */
.features-section { flex-direction: column; justify-content: center; }
.feature-row {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 64px; align-items: center; margin-bottom: 160px;
}
.feature-row:last-of-type { margin-bottom: 0; }
.feature-row--rev { direction: rtl; }
.feature-row--rev > * { direction: ltr; }
.ft-text { max-width: 500px; align-self: center; }
.ft-title {
    font-size: clamp(1.6rem, 2.5vw, 2rem); font-weight: 800;
    letter-spacing: -0.035em; margin-bottom: 20px; line-height: 1.15;
    color: var(--n900);
}
.ft-desc {
    font-size: 1.05rem; color: var(--n900); line-height: 1.8;
    margin-bottom: 24px;
}
.ft-break { display: block; }
.ft-bullets {
    list-style: none; padding: 0; margin: 0 0 28px;
    display: flex; flex-direction: column; gap: 24px;
}
.ft-bullets li {
    display: flex; align-items: center; gap: 16px;
    font-size: 1.05rem; color: var(--n600); line-height: 1.6;
}
.ft-bullets li::before { display: none; }
.ft-bullet-icon {
    flex-shrink: 0;
    width: 40px; height: 40px;
    background: var(--n100);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
}
.ft-bullet-icon svg {
    width: 18px; height: 18px;
    stroke: var(--n600); fill: none;
    stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round;
}
.ft-bullet-text {
    display: flex; flex-direction: column; gap: 2px;
}
.ft-bullet-text strong {
    color: var(--n900);
    font-size: 1.05rem; font-weight: 700;
    line-height: 1.3;
}
.ft-bullet-text span {
    color: var(--n500);
    font-size: 1.05rem;
    line-height: 1.5;
}
.ft-visual {
    background: var(--n100); border-radius: 24px;
    display: flex; align-items: center; justify-content: center;
    color: var(--n400); font-size: 0.85rem; border: 1px solid var(--n200);
}
.ft-visual--phone {
    background: transparent; border: none; min-height: auto;
    justify-content: center; align-self: center;
}
.ft-illus {
    position: relative;
    background: var(--n100);
    border-radius: 32px;
    padding: 20px;
    border: 1px solid var(--n200);
    display: flex; align-items: center; justify-content: center;
    box-shadow:
        0 4px 24px rgba(0,0,0,0.04),
        0 1px 4px rgba(0,0,0,0.02);
    transition: box-shadow 0.4s ease;
    overflow: hidden;
    max-width: 352px;
}
.ft-illus:hover {
    box-shadow:
        0 12px 48px rgba(0,0,0,0.08),
        0 2px 8px rgba(0,0,0,0.04);
}
.ft-illus__glow {
    position: absolute;
    bottom: 0; left: 50%; transform: translateX(-50%);
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(157,157,165,0.15) 0%, transparent 70%);
    pointer-events: none;
    filter: blur(20px);
}
.ft-illus__svg {
    width: 100%;
    max-width: 100%;
    height: auto;
    position: relative;
    z-index: 1;
    border-radius: 16px;
}
.ft-hint {
    text-align: center; color: var(--n400);
    font-size: 0.88rem; font-style: italic; margin-top: 60px;
}
.ft-category-block {
    margin-top: 8px; margin-bottom: 64px; text-align: center;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--n200);
}
.ft-category-block:first-of-type { margin-top: 0; }
.ft-category-title {
    font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 800;
    letter-spacing: -0.04em; line-height: 1.1; color: var(--n900);
    margin-bottom: 14px;
}
.ft-category-sub {
    font-size: 0.95rem; color: var(--n500); line-height: 1.7;
    max-width: 480px; margin: 0 auto;
}

/* ====== IPHONE MOCKUP (iPhone 17 style) ====== */
.iphone {
    position: relative; width: 272px; height: 578px;
    border-radius: 52px;
    background: #1C1C1E;
    box-shadow:
        0 0 0 1px #3A3A3C,
        0 0 0 2px #2C2C2E,
        inset 0 0 0 1px #3A3A3C,
        0 24px 80px rgba(0,0,0,0.18),
        0 8px 24px rgba(0,0,0,0.12);
    overflow: hidden; flex-shrink: 0; margin: 0 auto;
}
.iphone::after {
    content: ''; position: absolute; right: -2px; top: 140px;
    width: 3px; height: 56px; background: #3A3A3C; border-radius: 0 2px 2px 0;
}
.iphone__screen {
    position: absolute; top: 4px; left: 4px; right: 4px; bottom: 4px;
    border-radius: 48px; overflow: hidden; background: #0F1923;
}
.iphone__notch {
    position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
    width: 100px; height: 28px; background: #000; border-radius: 16px; z-index: 10;
    box-shadow: 0 0 0 1px rgba(255,255,255,0.06);
}
.iphone__notch::before {
    content: ''; position: absolute; top: 50%; right: 14px; transform: translateY(-50%);
    width: 8px; height: 8px; border-radius: 50%;
    background: radial-gradient(circle, #1a1a2e 40%, #0d0d1a 60%);
    box-shadow: inset 0 0 2px rgba(50,50,100,0.5);
}
.iphone--placeholder .iphone__screen {
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(145deg, var(--n100) 0%, var(--n200) 100%);
}
.iphone--placeholder .iphone__screen::after {
    content: 'Kommt bald'; font-size: 0.85rem; font-weight: 600;
    color: var(--n400); letter-spacing: 0.05em;
}

/* ====== CAROUSEL ====== */
.iphone-carousel { position: relative; width: 100%; height: 100%; overflow: hidden; }
.iphone-carousel__track {
    display: flex; height: 100%;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.iphone-carousel__slide {
    height: 100%; flex-shrink: 0;
    overflow: hidden;
}
.iphone-carousel__img {
    width: 100%; height: 100%; object-fit: cover; object-position: top;
    display: block;
}
.carousel-dots {
    position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%);
    display: flex; gap: 8px; z-index: 10;
}
.carousel-dot {
    width: 8px; height: 8px; border-radius: 50%; border: none; padding: 0;
    background: rgba(255,255,255,0.3); cursor: pointer; transition: all 0.3s ease;
}
.carousel-dot--active { background: #fff; transform: scale(1.25); }

/* ====== VISIONEN ====== */
.visionen-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 32px;
}
.vision-card {
    background: var(--n100); border: 1px solid var(--n200);
    border-radius: 20px; padding: 32px 24px; transition: all 0.3s ease;
}
.vision-card:hover { background: var(--n200); transform: translateY(-4px); }
.vision-card__icon {
    width: 44px; height: 44px; background: var(--n200);
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px;
}
.vision-card:hover .vision-card__icon { background: var(--n300); }
.vision-card__icon svg { width: 22px; height: 22px; stroke: var(--n600); fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.vision-card h3 { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 10px; color: var(--n900); }
.vision-card p { font-size: 0.88rem; color: var(--n500); line-height: 1.65; }

/* ====== FOUNDING ====== */
.benefits-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin-bottom: 56px; }
.b-card {
    background: var(--n800); border: none;
    border-radius: 20px; padding: 32px 24px; text-align: center;
    transition: all 0.3s ease;
}
.b-card:hover { background: var(--n700); transform: scale(1.03); }
.b-card__icon {
    width: 48px; height: 48px; background: var(--n700);
    border-radius: 14px; display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px;
}
.b-card__icon svg { width: 24px; height: 24px; stroke: var(--white); fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.b-card h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 6px; }
.b-card p { font-size: 0.8rem; color: var(--n400); line-height: 1.6; }

/* ====== SIGNUP ====== */
.signup { max-width: 480px; margin: 0 auto; }
.signup__fields { display: flex; gap: 12px; }
.signup__input {
    flex: 1; padding: 16px 20px; font-family: inherit; font-size: 0.95rem;
    border-radius: 14px; outline: none; transition: border-color 0.2s;
    background: var(--n800); border: none; color: var(--white);
}
.signup__input::placeholder { color: var(--n500); }
.signup__btn {
    padding: 16px 28px; background: var(--white); color: var(--n900);
    border: none; border-radius: 14px; font-family: inherit;
    font-weight: 700; font-size: 0.88rem; cursor: pointer;
    white-space: nowrap; transition: all 0.3s ease;
}
.signup__btn:hover { transform: scale(1.05); background: var(--n200); }
.signup__hint { font-size: 0.78rem; color: var(--n500); margin-top: 14px; text-align: center; }

/* DSGVO Consent Checkbox */
.signup__consent {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-top: 18px;
    padding: 12px 14px;
    border-radius: 12px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    user-select: none;
}
.signup__consent:hover { background-color: rgba(255,255,255,0.03); }
.signup__consent input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 0; height: 0;
}
.signup__consent-box {
    flex-shrink: 0;
    width: 20px; height: 20px;
    border-radius: 6px;
    border: 1.5px solid var(--n500);
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 1px;
    transition: all 0.2s ease;
    color: var(--n900);
}
.signup__consent-box svg {
    width: 14px; height: 14px;
    opacity: 0;
    transform: scale(0.6);
    transition: all 0.2s ease;
}
.signup__consent input[type="checkbox"]:checked + .signup__consent-box {
    background: var(--white);
    border-color: var(--white);
}
.signup__consent input[type="checkbox"]:checked + .signup__consent-box svg {
    opacity: 1;
    transform: scale(1);
}
.signup__consent input[type="checkbox"]:focus-visible + .signup__consent-box {
    outline: 2px solid rgba(255,255,255,0.4);
    outline-offset: 2px;
}
.signup__consent-text {
    font-size: 0.82rem;
    line-height: 1.5;
    color: var(--n400);
    text-align: left;
}
.signup__consent-text a {
    color: var(--white);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.signup__consent-text a:hover { color: var(--n200); }
.signup__consent--error { background-color: rgba(239,68,68,0.08); }
.signup__consent--error .signup__consent-box { border-color: var(--error); }
.signup__consent--error .signup__consent-text { color: #FCA5A5; }

/* Honeypot — must stay invisible to humans, present for Brevo's anti-spam check */
.signup__honeypot {
    position: absolute !important;
    left: -9999px !important;
    width: 1px !important;
    height: 1px !important;
    opacity: 0 !important;
    pointer-events: none !important;
    overflow: hidden !important;
}

/* ====== TRUST ====== */
.trust-section { background: var(--white); border-radius: 40px 40px 0 0; min-height: auto; padding: 80px 48px; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 48px; text-align: center; max-width: 900px; margin: 0 auto; }
.trust-item__icon {
    width: 48px; height: 48px; background: var(--n100);
    border-radius: 14px; display: flex; align-items: center; justify-content: center;
    margin: 0 auto 14px; font-size: 1.2rem;
}
.trust-item strong { font-size: 0.9rem; display: block; margin-bottom: 4px; }
.trust-item p { font-size: 0.78rem; color: var(--n500); line-height: 1.5; }

/* ====== FINAL CTA ====== */
.section--final { background: var(--n900); color: var(--white); text-align: center; border-radius: 0; }

/* ====== FOOTER ====== */
.footer {
    padding: 48px 48px 36px; background: var(--n900);
    text-align: center; color: var(--n500);
    border-top: 1px solid var(--n800);
    scroll-snap-align: end;
}
.footer a { color: var(--n500); text-decoration: none; font-size: 0.85rem; transition: color 0.2s; }
.footer a:hover { color: var(--white); }
.footer__sep { margin: 0 16px; color: var(--n700); }
.footer__copy { font-size: 0.72rem; color: var(--n600); margin-top: 16px; }

/* ====== SCROLL REVEALS ====== */
.rv { opacity: 0; transition: opacity 0.9s cubic-bezier(0.4,0,0.2,1), transform 0.9s cubic-bezier(0.4,0,0.2,1); }
.rv--up { transform: translateY(50px); }
.rv--left { transform: translateX(-50px); }
.rv--right { transform: translateX(50px); }
.rv--scale { transform: scale(0.92); }
.rv.vis { opacity: 1; transform: none; }
.stagger > *:nth-child(1) { transition-delay: 0s; }
.stagger > *:nth-child(2) { transition-delay: 0.08s; }
.stagger > *:nth-child(3) { transition-delay: 0.16s; }
.stagger > *:nth-child(4) { transition-delay: 0.24s; }

@keyframes shake { 0%,100% { transform: translateX(0); } 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }

/* ====== RESPONSIVE ====== */
@media (max-width: 1024px) {
    .header { padding: 18px 32px; }
    .hero__content-wrap { padding-bottom: 10vh; }
    .bcard { width: min(75vw, 60vh); height: min(44vw, 35vh); }
    .snap-section { padding: 80px 24px; }
    .feature-row, .feature-row--rev { grid-template-columns: 1fr; gap: 40px; direction: ltr; }
    .ft-visual { order: 1; }
    .ft-text { order: 2; max-width: 100%; text-align: center; display: flex; flex-direction: column; align-items: center; }
    .ft-text .ft-title { text-align: center; font-size: clamp(1.5rem, 5vw, 2rem); margin-bottom: 16px; }
    .ft-text .ft-desc { text-align: center; max-width: 400px; font-size: 0.95rem; line-height: 1.7; color: var(--n500); }
    .ft-text .ft-bullets { display: none; }
    .ft-category-block { margin-top: 80px; margin-bottom: 40px; }
    .iphone { width: 240px; height: 510px; border-radius: 46px; }
    .ft-illus { padding: 16px; border-radius: 28px; max-width: 312px; }
    .iphone__notch { width: 86px; height: 24px; top: 7px; }
    .iphone__screen { border-radius: 42px; }
    .visionen-grid { grid-template-columns: 1fr; }
    .benefits-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .hero__content-wrap { padding-bottom: 8vh; }
    .hero__headline { margin-bottom: 16px; }
    .hero__sub { margin-bottom: 28px; }
    .bcard { width: min(85vw, 60vh); height: min(50vw, 35vh); border-radius: 20px; }
    .bcard::after { border-radius: 20px; }
    .btn-primary, .btn-secondary { padding: 14px 28px; font-size: 0.9rem; }
}
@media (max-width: 640px) {
    .snap-section { min-height: auto; padding: 80px 20px; }
    .section--dark, .section--light, .section--neutral,
    .trust-section { border-radius: 24px 24px 0 0; }
    .hero__content-wrap { padding-bottom: 6vh; padding-left: 16px; padding-right: 16px; }
    .hero__headline { margin-bottom: 14px; }
    .hero__sub { margin-bottom: 24px; font-size: 0.9rem; }
    .bcard { width: min(90vw, 60vh); height: min(53vw, 35vh); border-radius: 16px; }
    .bcard::after { border-radius: 16px; }
    .problems-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .p-card { padding: 20px 16px; border-radius: 14px; }
    .p-card h3 { font-size: 0.9rem; }
    .p-card p { font-size: 0.75rem; }
    .p-card__icon { width: 32px; height: 32px; margin-bottom: 12px; }
    .p-card__icon svg { width: 18px; height: 18px; }
    .benefits-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .b-card { padding: 20px 16px; border-radius: 14px; }
    .b-card h4 { font-size: 0.8rem; }
    .b-card p { font-size: 0.7rem; }
    .b-card__icon { width: 32px; height: 32px; margin-bottom: 12px; }
    .b-card__icon svg { width: 18px; height: 18px; }
    .trust-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
    .hero__cta-row { flex-direction: row; flex-wrap: nowrap; gap: 10px; }
    .hero__cta-row .btn-primary,
    .hero__cta-row .btn-secondary { width: auto; padding: 12px 20px; font-size: 0.85rem; }
    .trust-section { padding: 60px 20px; }
    .hero__counter { font-size: 0.8rem; margin-top: 20px; }
    .iphone { width: 200px; height: 425px; border-radius: 38px; }
    .ft-illus { padding: 12px; border-radius: 24px; max-width: 248px; }
    .iphone__notch { width: 76px; height: 22px; top: 6px; }
    .iphone__screen { border-radius: 34px; }
    .feature-row, .feature-row--rev { gap: 24px; margin-bottom: 56px; }
    .ft-title { font-size: 1.4rem; margin-bottom: 12px; }
    .ft-desc { font-size: 0.9rem; margin-bottom: 0; line-height: 1.65; }
    .ft-category-block { margin-top: 64px; margin-bottom: 32px; }
    .ft-category-title { font-size: 1.2rem; }
    .ft-category-sub { font-size: 0.85rem; }
    .vision-card { padding: 24px 20px; }
}
@media (max-width: 420px) {
    .hero__content-wrap { padding-bottom: 4vh; }
    .bcard { width: min(92vw, 60vh); height: min(54vw, 35vh); }
    .btn-primary, .btn-secondary { padding: 10px 16px; font-size: 0.78rem; }
}