/* ==========================================================
   PVPlanungshilfe
   responsive.css – korrigierte vollständige Ersatzdatei
========================================================== */

/* =============================
   MOBILE MENU BUTTON
============================= */

.menu-toggle {
    display: none;
    width: 46px;
    height: 46px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    flex-shrink: 0;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    border-radius: 999px;
    background: var(--primary);
    transition:
        transform 0.25s ease,
        opacity 0.25s ease;
}

/* =============================
   DESKTOP / SMALL NOTEBOOK
============================= */

@media (max-width: 1260px) {

    .header-container {
        width: min(1180px, 94%);
        grid-template-columns: auto minmax(360px, 1fr) auto;
        gap: 24px;
    }

    .logo .brand-mark {
        width: 56px;
        height: 56px;
        flex-basis: 56px;
    }

    .logo-title {
        font-size: 1.25rem;
    }

    .logo-subtitle {
        font-size: 0.76rem;
    }

    .main-navigation ul {
        gap: 22px;
    }

    .main-navigation a {
        font-size: 0.95rem;
    }

    .header-contact {
        gap: 14px;
    }

    .header-contact .btn {
        padding: 13px 20px;
        font-size: 0.95rem;
    }

    .phone {
        font-size: 0.95rem;
    }
}

/* =============================
   TABLET / MOBILE NAVIGATION
============================= */

@media (max-width: 1080px) {

    .site-header,
    header {
        position: sticky;
        top: 0;
    }

    .header-container {
        position: relative;
        width: 92%;
        min-height: 80px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 18px;
    }

    .logo {
        gap: 12px;
    }

    .logo .brand-mark {
        width: 52px;
        height: 52px;
        flex-basis: 52px;
    }

    .logo-title {
        font-size: 1.16rem;
    }

    .logo-subtitle {
        font-size: 0.72rem;
    }

    .header-contact {
        display: none;
    }

    .menu-toggle {
        display: flex;
        margin-left: auto;
    }

    .main-navigation {
        position: absolute;
        top: 100%;
        left: -4.35%;
        right: -4.35%;
        display: none;
        padding: 16px 5% 22px;
        background: #fff;
        border-top: 1px solid var(--border);
        box-shadow: 0 20px 35px rgba(18, 59, 93, 0.12);
    }

    .main-navigation.open {
        display: block;
    }

    .main-navigation ul {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .main-navigation li {
        width: 100%;
        border-bottom: 1px solid var(--border);
    }

    .main-navigation li:last-child {
        border-bottom: 0;
    }

    .main-navigation a {
        display: block;
        width: 100%;
        padding: 15px 2px;
        font-size: 1rem;
    }

    .main-navigation a::after {
        display: none;
    }

    .hero-container,
    .grid-2,
    .grid-3,
    .grid-4,
    .about,
    .victron-box,
    .contact-grid,
    .footer-container {
        grid-template-columns: 1fr;
    }

    .hero-container {
        gap: 50px;
    }

    .hero-image {
        order: -1;
    }

    .hero-image img {
        aspect-ratio: 16 / 9;
    }

    .about {
        gap: 42px;
        text-align: left;
    }

    .about-image {
        justify-content: flex-start;
    }

    .about-image img {
        width: min(100%, 310px);
    }

    .victron-box {
        padding: 42px 32px;
        gap: 34px;
        text-align: left;
    }

    .victron-logo-wrap {
        min-height: 0;
        justify-content: flex-start;
    }

    .victron-logo {
        width: min(100%, 290px);
    }

    .footer-container {
        gap: 40px;
        text-align: left;
    }

    .footer-links {
        align-items: flex-start;
    }
}

/* =============================
   SMARTPHONE
============================= */

@media (max-width: 720px) {

    section {
        padding: 72px 0;
    }

    .header-container {
        min-height: 74px;
    }

    .logo .brand-mark {
        width: 46px;
        height: 46px;
        flex-basis: 46px;
    }

    .logo-title {
        font-size: 1.03rem;
    }

    .logo-subtitle {
        font-size: 0.66rem;
    }

    .menu-toggle {
        width: 44px;
        height: 44px;
    }

    h1 {
        font-size: clamp(2.05rem, 9vw, 2.8rem);
    }

    h2 {
        font-size: clamp(1.7rem, 7.5vw, 2.2rem);
    }

    .hero {
        padding: 54px 0 70px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .trust {
        flex-direction: column;
        gap: 16px;
    }

    .service-card,
    .process-card {
        padding: 30px 24px;
    }

    .highlight-box,
    .contact-box {
        padding: 36px 24px;
    }

    .about-image img {
        width: min(100%, 285px);
    }

    .about-badge {
        font-size: 0.82rem;
        line-height: 1.4;
    }

    .victron-box {
        padding: 32px 24px;
    }

    .footer-brand {
        align-items: flex-start;
    }

    .footer-brand img {
        width: 70px;
        height: 70px;
    }

    .footer-brand strong {
        font-size: 1.28rem;
    }

    .footer-bottom {
        padding: 18px 5%;
        font-size: 0.84rem;
    }

    .btn {
        width: 100%;
        padding: 16px 24px;
    }
}

/* =============================
   KLEINE SMARTPHONES
============================= */

@media (max-width: 460px) {

    .logo {
        gap: 9px;
    }

    .logo .brand-mark {
        width: 42px;
        height: 42px;
        flex-basis: 42px;
    }

    .logo-title {
        font-size: 0.96rem;
    }

    .logo-subtitle {
        display: none;
    }

    .hero-container {
        width: 92%;
    }

    .about-image img {
        width: min(100%, 260px);
    }

    .footer-brand {
        gap: 13px;
    }

    .footer-brand img {
        width: 62px;
        height: 62px;
    }

    .footer-brand strong {
        font-size: 1.15rem;
    }

    .contact-item {
        align-items: flex-start;
    }

    .contact-item img {
        width: 22px;
        height: 22px;
    }
}