:root {
    --bg: #f6faf7;
    --bg-alt: #eef6f0;
    --text: #1f2a24;
    --muted: #4f6058;
    --primary: #256b3b;
    --primary-dark: #1d5630;
    --accent: #a7d875;
    --line: #dbe9de;
    --card: #ffffff;
    --shadow: 0 12px 30px rgba(23, 53, 31, 0.08);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Inter", "Segoe UI", Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.65;
}

.container {
    width: min(1120px, 92%);
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(246, 250, 247, 0.9);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none;
    color: var(--text);
    font-weight: 800;
}

.brand-logo {
    width: 44px;
    height: 44px;
    object-fit: contain;
    border-radius: 50%;
    border: 1px solid var(--line);
    background: #fff;
}

.brand-text {
    font-size: 1.05rem;
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: auto;
    margin-right: 0.6rem;
    font-size: 0.95rem;
    font-weight: 600;
    white-space: nowrap;
}

.header-contact span {
    color: var(--primary);
}

.header-contact a {
    color: var(--primary);
    text-decoration: none;
}

.header-contact a:hover {
    text-decoration: underline;
}

.nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav a {
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
}

.nav a:hover {
    color: var(--primary);
}

.menu-toggle {
    display: none;
    border: 0;
    background: transparent;
    width: 44px;
    height: 44px;
    padding: 8px;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text);
    margin: 6px 0;
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 5rem 0 3.5rem;
    background:
        radial-gradient(circle at 90% 10%, rgba(167, 216, 117, 0.22), transparent 30%),
        radial-gradient(circle at 10% 90%, rgba(37, 107, 59, 0.12), transparent 25%);
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("../images/energieberatung.png");
    background-repeat: no-repeat;
    background-position: right center;
    background-size: 45% auto;
    opacity: 0.18;
    pointer-events: none;
}

.hero > .container {
    position: relative;
    z-index: 1;
}

.hero-card {
    backdrop-filter: blur(2px);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2rem;
    align-items: center;
}

.hero-visual {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
}

.hero-image {
    width: 100%;
    height: auto;
    border-radius: 1.2rem;
    box-shadow: var(--shadow);
    display: block;
    object-fit: cover;
}

.eyebrow {
    margin: 0;
    font-size: 0.82rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    font-weight: 700;
}

h1,
h2,
h3 {
    margin: 0 0 0.7rem;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2rem, 4vw, 3.2rem);
}

h2 {
    font-size: clamp(1.6rem, 3vw, 2.3rem);
}

.lead {
    color: var(--muted);
    max-width: 60ch;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 1.3rem;
}

.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.74rem 1.15rem;
    border-radius: 0.7rem;
    border: 1px solid transparent;
    background: var(--primary);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
}

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

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-secondary:hover {
    color: #fff;
    background: var(--primary);
}

.btn-small {
    padding: 0.5rem 0.9rem;
}

.hero-card,
.card,
.step,
.about-box {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 1rem;
    box-shadow: var(--shadow);
}

.hero-card {
    padding: 1.4rem;
}

.hero-card ul {
    margin: 0;
    padding-left: 1.2rem;
}

.section {
    padding: 4rem 0;
}

.section-alt {
    background: var(--bg-alt);
    border-block: 1px solid var(--line);
}

#ablauf {
    position: relative;
    overflow: hidden;
}

#ablauf::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("../images/ECO-FRIENDLY LOGO DESIGN.png");
    background-repeat: no-repeat;
    background-position: left -45px center;
    background-size: 430px auto;
    opacity: 0.1;
    pointer-events: none;
}

#ablauf > .container {
    position: relative;
    z-index: 1;
}

.cards {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 1.3rem;
}

.card {
    padding: 1.25rem;
}

.card p {
    margin: 0;
    color: var(--muted);
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1.3rem;
}

.step {
    padding: 1.25rem;
}

.step span {
    width: 34px;
    height: 34px;
    display: inline-grid;
    place-items: center;
    border-radius: 50%;
    margin-bottom: 0.7rem;
    color: #fff;
    background: var(--primary);
    font-weight: 700;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 1rem;
    align-items: start;
}

.about-box {
    position: relative;
    padding: 1.1rem 1.1rem 1rem;
    padding-right: 5.5rem;
    display: flex;
    flex-direction: column;
}

.about-box-head {
    display: block;
}

.about-box-head h3 {
    margin: 0;
    padding-right: 0.3rem;
}

.about-box-logo {
    position: absolute;
    top: -0.3rem;
    right: 1.3rem;
    width: 118px;
    height: 118px;
    object-fit: contain;
}

.about-contact {
    margin-top: 0.35rem;
}

.about-contact p {
    margin: 0.5rem 0;
}

.about-contact a {
    white-space: nowrap;
}

.about-contact a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 700;
}

.cta {
    background: linear-gradient(135deg, #1f5f34, #2f7c47);
    color: #fff;
    padding: 3rem 0;
}

.cta .eyebrow {
    color: var(--accent);
}

.cta-inner {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 2rem;
    align-items: start;
}

.cta-actions {
    width: 100%;
}

.cta-copy {
    max-width: none;
}

.cta .btn {
    background: #fff;
    color: var(--primary-dark);
}

.cta .btn:hover {
    background: #ecf8ef;
}

.cta .btn-secondary {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.9);
    color: #fff;
}

.cta .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.cta-form {
    gap: 1rem;
    max-width: 600px;
}

.cta-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.cta-form label {
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
}

.cta-form input,
.cta-form textarea {
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 4px;
    padding: 0.65rem 0.8rem;
    font-size: 1rem;
    font-family: inherit;
}

.cta-form textarea {
    min-height: 120px;
    resize: vertical;
}

.cta-form input:focus,
.cta-form textarea:focus {
    border-color: var(--accent);
    outline: none;
    box-shadow: 0 0 0 3px rgba(167, 216, 117, 0.28);
}

.cta-form button {
    width: 100%;
    margin-top: 0.5rem;
}

.cta-form .btn {
    width: 100%;
    font-size: 0.95rem;
    padding: 0.68rem;
    margin-top: 0.2rem;
}

.cta-form textarea {
    min-height: 88px;
}

.cta .form-status {
    margin-bottom: 0.8rem;
}

.cta .form-status-success {
    background: rgba(236, 248, 239, 0.95);
}

.cta .form-status-error {
    background: rgba(255, 244, 244, 0.95);
}

.cta .field-error {
    color: #ffd9d9;
}

.site-footer {
    border-top: 1px solid var(--line);
    background: #f0f5f1;
}

.footer-top {
    padding: 1.1rem 0 0.4rem;
}

.footer-inner {
    min-height: 72px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
    color: var(--text);
}

.footer-brand .brand-logo {
    width: 62px;
    height: 62px;
    border-radius: 0.95rem;
    border: 1px solid var(--line);
    background: #fff;
    box-shadow: var(--shadow);
}

.footer-brand strong {
    display: block;
    font-size: 1rem;
    line-height: 1.2;
}

.footer-brand span {
    display: block;
    color: var(--muted);
    font-size: 0.92rem;
}

.site-footer p {
    margin: 0;
}

.site-footer nav {
    display: flex;
    gap: 1rem;
}

.site-footer a {
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
}

.site-footer a:hover {
    color: var(--primary);
}

.footer-contact {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
    font-size: 0.9rem;
}

.footer-contact span {
    display: inline-block;
}

.footer-contact strong {
    color: var(--primary);
    font-weight: 600;
    margin-right: 0.3rem;
}

.footer-contact a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.footer-contact a:hover {
    text-decoration: underline;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: rgba(37, 107, 59, 0.95);
    backdrop-filter: blur(10px);
    border-top: 3px solid var(--accent);
    padding: 1.5rem var(--pad-mobile);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.cookie-banner-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: center;
    color: #fff;
}

.cookie-banner h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
}

.cookie-banner p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.4;
}

.cookie-banner a {
    color: var(--accent);
    text-decoration: underline;
}

.cookie-banner a:hover {
    opacity: 0.8;
}

.cookie-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.cookie-banner .btn {
    padding: 0.6rem 1.3rem;
    font-size: 0.9rem;
    white-space: nowrap;
    background: var(--accent);
    color: var(--primary);
    border: none;
    cursor: pointer;
}

.cookie-banner .btn:hover {
    background: #b5e67f;
}

.cookie-banner .btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.cookie-banner .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    color: var(--text);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    padding: 0.75rem;
    border: 1px solid var(--line);
    border-radius: 0.4rem;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 107, 59, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-status {
    margin: 0 0 1rem;
    padding: 0.9rem 1rem;
    border-radius: 0.6rem;
    font-weight: 600;
}

.form-status-success {
    background: #ecf8ef;
    color: var(--primary);
    border: 1px solid var(--line);
}

.form-status-error {
    background: #fff4f4;
    color: #a33;
    border: 1px solid #f0c7c7;
}

.field-error {
    color: #a33;
    font-size: 0.85rem;
    min-height: 1.1em;
}

@media (max-width: 900px) {
    .cookie-banner-content {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .cookie-actions {
        justify-content: stretch;
    }

    .cookie-banner .btn,
    .cookie-banner .btn-secondary {
        flex: 1;
    }

    .hero-grid,
    .about-grid,
    .steps,
    .cards {
        grid-template-columns: 1fr;
    }

    .cta-inner {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .header-contact {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .nav {
        position: absolute;
        left: 4%;
        right: 4%;
        top: calc(100% + 8px);
        background: #fff;
        border: 1px solid var(--line);
        border-radius: 0.75rem;
        box-shadow: var(--shadow);
        display: none;
        flex-direction: column;
        align-items: flex-start;
        padding: 0.8rem;
        gap: 0.8rem;
    }

    .nav.open {
        display: flex;
    }

    .hero::before {
        background-position: right center;
        background-size: 60% auto;
        opacity: 0.12;
    }

    .about-box {
        padding-right: 7.25rem;
    }

    .about-box-logo {
        top: -0.1rem;
        right: 0.3rem;
        width: 92px;
        height: 92px;
    }

    #ablauf::before {
        background-size: 260px auto;
        background-position: left -70px top 10px;
        opacity: 0.09;
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-brand .brand-logo {
        width: 54px;
        height: 54px;
    }
}