/* ============================================
   BURRON – Stylesheet
   Erfurt & Thüringen · Praktische Projekte
   ============================================ */

:root {
    --bg:           #f3efe6;
    --bg-alt:       #ece6d8;
    --bg-stone:     #ddd6c5;
    --bg-dark:      #1c2219;
    --bg-darker:    #131710;

    --olive:        #3a5430;
    --moss:         #516b3e;
    --sage:         #7a9a62;
    --sage-light:   #a8c48a;
    --sage-dim:     rgba(168, 196, 138, 0.6);

    --stone:        #b8ae9c;
    --wood:         #7a5230;
    --graphite:     #252520;

    --text:         #1e1e1a;
    --text-muted:   #6b6258;
    --text-light:   #f3efe6;
    --text-dim:     rgba(243, 239, 230, 0.65);

    --font-serif:   'Playfair Display', Georgia, serif;
    --font-sans:    'Inter', system-ui, -apple-system, sans-serif;

    --section-pad:  clamp(64px, 9vw, 128px);
    --container:    1160px;
}

/* ============================================
   BASE
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    display: block;
    max-width: 100%;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

button {
    border: none;
    cursor: pointer;
    background: none;
    font: inherit;
}

/* ============================================
   CONTAINER
   ============================================ */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 28px;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    transition: background 0.35s ease, box-shadow 0.35s ease;
}

.nav.scrolled {
    background: rgba(28, 34, 25, 0.97);
    box-shadow: 0 1px 0 rgba(255,255,255,0.06), 0 4px 24px rgba(0,0,0,0.3);
    backdrop-filter: blur(8px);
}

.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 24px;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 9px;
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-light);
    letter-spacing: 0.01em;
    flex-shrink: 0;
}

.nav__logo-leaf {
    width: 20px;
    height: 24px;
    color: var(--sage);
    flex-shrink: 0;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav__links a {
    font-size: 0.85rem;
    font-weight: 400;
    color: rgba(243, 239, 230, 0.75);
    letter-spacing: 0.04em;
    transition: color 0.2s;
}

.nav__links a:hover {
    color: var(--text-light);
}

.nav__cta {
    background: var(--olive) !important;
    color: var(--text-light) !important;
    padding: 9px 20px;
    font-weight: 500 !important;
    letter-spacing: 0.02em !important;
    transition: background 0.2s !important;
}

.nav__cta:hover {
    background: var(--moss) !important;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 6px 4px;
}

.nav__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-light);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

.nav__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn--primary {
    background: var(--olive);
    color: var(--text-light);
    border-color: var(--olive);
}

.btn--primary:hover {
    background: var(--moss);
    border-color: var(--moss);
}

.btn--full {
    width: 100%;
    text-align: center;
}

/* ============================================
   SECTIONS – Base
   ============================================ */
.section {
    padding: var(--section-pad) 0;
}

.section--light  { background: var(--bg); }
.section--stone  { background: var(--bg-stone); }
.section--dark   { background: var(--bg-dark); }

.section__header {
    margin-bottom: clamp(40px, 6vw, 72px);
}

.section__label {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--moss);
    margin-bottom: 14px;
}

.section__label--green {
    color: var(--sage-light);
}

.section__title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 700;
    line-height: 1.15;
    color: var(--text);
}

.section__title em {
    font-style: italic;
    color: var(--olive);
}

.section__title--light {
    color: var(--text-light);
}

.section__title--light em {
    color: var(--sage-light);
}

.section__desc {
    margin-top: 16px;
    font-size: 1rem;
    color: var(--text-dim);
    max-width: 480px;
    line-height: 1.7;
}

/* ============================================
   HERO
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--bg-dark);
}

/* Diagonal stripe texture – handwerklich */
.hero__bg-pattern {
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(
            -52deg,
            transparent 0px,
            transparent 56px,
            rgba(58, 84, 48, 0.07) 56px,
            rgba(58, 84, 48, 0.07) 57px
        );
}

/* Additional green gradient glow */
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(
        ellipse 80% 60% at 60% 40%,
        rgba(58, 84, 48, 0.22) 0%,
        transparent 70%
    );
    pointer-events: none;
}

.hero__content {
    position: relative;
    z-index: 2;
    padding-top: 72px;
    padding-bottom: 40px;
    max-width: 680px;
}

.hero__eyebrow {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--sage-light);
    margin-bottom: 22px;
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 0;
    animation: fadeUp 0.6s 0.05s ease forwards;
}

.hero__eyebrow::before {
    content: '';
    display: block;
    width: 36px;
    height: 1px;
    background: var(--sage);
    flex-shrink: 0;
}

.hero__headline {
    font-family: var(--font-serif);
    font-size: clamp(3.2rem, 8vw, 6.5rem);
    font-weight: 700;
    line-height: 1.04;
    color: var(--text-light);
    margin-bottom: 28px;
    letter-spacing: -0.01em;
    opacity: 0;
    animation: fadeUp 0.65s 0.15s ease forwards;
}

.hero__headline em {
    font-style: italic;
    color: var(--sage-light);
}

.hero__sub {
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    color: rgba(243, 239, 230, 0.72);
    max-width: 420px;
    margin-bottom: 44px;
    line-height: 1.75;
    opacity: 0;
    animation: fadeUp 0.65s 0.25s ease forwards;
}

.hero__content .btn {
    opacity: 0;
    animation: fadeUp 0.65s 0.35s ease forwards;
}

/* Botanical deco – right side */
.hero__deco {
    position: absolute;
    right: clamp(40px, 8vw, 140px);
    top: 50%;
    transform: translateY(-50%);
    width: clamp(120px, 18vw, 240px);
    color: var(--sage);
    opacity: 0.4;
    z-index: 1;
    pointer-events: none;
}

/* Scroll hint */
.hero__scroll-hint {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(243, 239, 230, 0.35);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    z-index: 2;
    animation: scrollBob 2.5s ease-in-out infinite;
}

/* ============================================
   SERVICES
   ============================================ */
.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--bg-stone);
}

.service-card {
    background: var(--bg);
    padding: 44px 32px 40px;
    transition: background 0.2s;
}

.service-card:hover {
    background: #f8f4ec;
}

.service-card--featured {
    background: var(--olive);
    color: var(--text-light);
}

.service-card--featured:hover {
    background: var(--moss);
}

.service-card__icon {
    width: 44px;
    height: 44px;
    margin-bottom: 26px;
    color: var(--olive);
}

.service-card--featured .service-card__icon {
    color: var(--sage-light);
}

.service-card__title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.2;
    color: var(--text);
}

.service-card--featured .service-card__title {
    color: var(--text-light);
}

.service-card__intro {
    font-size: 0.855rem;
    color: var(--text-muted);
    margin-bottom: 22px;
    line-height: 1.65;
}

.service-card--featured .service-card__intro {
    color: rgba(243, 239, 230, 0.7);
}

.service-card__list {
    display: flex;
    flex-direction: column;
    gap: 9px;
}

.service-card__list li {
    font-size: 0.82rem;
    padding-left: 18px;
    position: relative;
    color: var(--text-muted);
    line-height: 1.5;
}

.service-card--featured .service-card__list li {
    color: rgba(243, 239, 230, 0.72);
}

.service-card__list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--moss);
    font-size: 0.7rem;
    top: 2px;
}

.service-card--featured .service-card__list li::before {
    color: var(--sage-light);
}

/* ============================================
   RESULTS / ERGEBNISSE
   ============================================ */
.results__stack {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.result-card {
    display: block;
}

.result-card__img-wrap {
    overflow: hidden;
    width: 100%;
}

.result-card__img-wrap img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.result-card__img-wrap:hover img {
    transform: scale(1.015);
}

.result-card__meta {
    display: flex;
    align-items: baseline;
    gap: 24px;
    padding: 16px 0 0;
    flex-wrap: wrap;
}

.result-card__tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--sage-light);
    border: 1px solid rgba(168, 196, 138, 0.35);
    padding: 5px 12px;
    white-space: nowrap;
    flex-shrink: 0;
}

.result-card__caption {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-style: italic;
    color: rgba(243, 239, 230, 0.7);
    line-height: 1.55;
}

/* ============================================
   WARUM BURRON
   ============================================ */
.why__grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2px;
    background: var(--stone);
}

.why-point {
    background: var(--bg-stone);
    padding: 40px 28px;
    transition: background 0.2s;
}

.why-point:hover {
    background: #d5cdb9;
}

.why-point__num {
    display: block;
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--olive);
    opacity: 0.3;
    margin-bottom: 16px;
    line-height: 1;
}

.why-point h3 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.25;
    color: var(--text);
}

.why-point p {
    font-size: 0.83rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ============================================
   PROJEKTBEISPIELE
   ============================================ */
.examples__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    background: var(--bg-stone);
}

.example-item {
    background: var(--bg);
    padding: 22px 28px;
    display: flex;
    align-items: flex-start;
    gap: 18px;
    font-size: 0.92rem;
    color: var(--text);
    transition: background 0.2s;
    line-height: 1.5;
}

.example-item:hover {
    background: var(--bg-alt);
}

.example-item__arrow {
    color: var(--olive);
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
    margin-top: 2px;
    font-family: var(--font-serif);
}

/* ============================================
   CONTACT
   ============================================ */
.contact__inner {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 80px;
    align-items: start;
}

.contact__desc {
    margin-top: 20px;
    font-size: 0.98rem;
    color: var(--text-dim);
    line-height: 1.75;
    max-width: 340px;
}

.contact__info {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact__info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.82rem;
    color: var(--sage-light);
    letter-spacing: 0.03em;
}

.contact__botanical {
    margin-top: 48px;
    width: 90px;
    color: var(--sage);
    opacity: 0.25;
}

/* Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-row {
    display: flex;
    gap: 16px;
}

.form-row--2 > * {
    flex: 1;
    min-width: 0;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.form-field label {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(243, 239, 230, 0.45);
}

.form-optional {
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    font-size: 0.68rem;
    color: rgba(243, 239, 230, 0.3);
}

.form-field input,
.form-field textarea {
    background: rgba(243, 239, 230, 0.05);
    border: 1px solid rgba(243, 239, 230, 0.12);
    color: var(--text-light);
    padding: 12px 16px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s, background 0.2s;
    resize: vertical;
    appearance: none;
    -webkit-appearance: none;
    border-radius: 0;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
    color: rgba(243, 239, 230, 0.22);
}

.form-field input:focus,
.form-field textarea:focus {
    border-color: var(--sage);
    background: rgba(243, 239, 230, 0.07);
}

.form-note {
    font-size: 0.75rem;
    color: rgba(243, 239, 230, 0.28);
    text-align: center;
    margin-top: -4px;
    letter-spacing: 0.02em;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--bg-darker);
    padding: 52px 0 36px;
    border-top: 1px solid rgba(243, 239, 230, 0.07);
}

.footer__inner {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 9px;
    font-family: var(--font-serif);
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: 12px;
}

.footer__logo-leaf {
    width: 18px;
    height: 22px;
    color: var(--sage);
}

.footer__claim {
    font-size: 0.8rem;
    color: rgba(243, 239, 230, 0.35);
    line-height: 1.65;
}

.footer__nav {
    display: flex;
    flex-direction: column;
    gap: 11px;
    padding-top: 4px;
}

.footer__nav a {
    font-size: 0.82rem;
    color: rgba(243, 239, 230, 0.45);
    transition: color 0.2s;
    letter-spacing: 0.02em;
}

.footer__nav a:hover {
    color: var(--text-light);
}

.footer__legal {
    display: flex;
    flex-direction: column;
    gap: 9px;
    align-items: flex-end;
    padding-top: 4px;
}

.footer__legal p,
.footer__legal a {
    font-size: 0.75rem;
    color: rgba(243, 239, 230, 0.28);
    letter-spacing: 0.02em;
}

.footer__legal a:hover {
    color: rgba(243, 239, 230, 0.55);
}

.footer__credit {
    font-size: 0.72rem;
    color: rgba(243, 239, 230, 0.2);
    margin-top: 4px;
}

.footer__credit a {
    color: rgba(243, 239, 230, 0.28);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.footer__credit a:hover {
    color: var(--sage-light);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(22px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollBob {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50%       { transform: translateX(-50%) translateY(6px); }
}

/* ============================================
   FOOTER PARTNERS
   ============================================ */
.footer__partners {
    display: flex;
    flex-direction: column;
    gap: 11px;
    padding-top: 4px;
}

.footer__partners-label {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(243, 239, 230, 0.22);
    margin-bottom: 2px;
}

.footer__partners a {
    font-size: 0.82rem;
    color: rgba(243, 239, 230, 0.35);
    transition: color 0.2s;
    letter-spacing: 0.02em;
}

.footer__partners a:hover {
    color: var(--sage-light);
}

/* ============================================
   LEGAL PAGES (Impressum / Datenschutz)
   ============================================ */
.legal-hero {
    background: var(--bg-dark);
    padding: 140px 0 72px;
}

.legal-hero__label {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--sage-light);
    margin-bottom: 14px;
}

.legal-hero__title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--text-light);
    line-height: 1.15;
}

.legal-content {
    padding: 72px 0 100px;
    background: var(--bg);
}

.legal-content__inner {
    max-width: 720px;
}

.legal-content h2 {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
    margin-top: 48px;
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--bg-stone);
}

.legal-content h2:first-child {
    margin-top: 0;
}

.legal-content h3 {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
    margin-top: 28px;
    margin-bottom: 8px;
}

.legal-content p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 14px;
}

.legal-content p:last-child {
    margin-bottom: 0;
}

.legal-content a {
    color: var(--olive);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.legal-content a:hover {
    color: var(--moss);
}

.legal-content ul {
    list-style: disc;
    padding-left: 22px;
    margin-bottom: 14px;
}

.legal-content ul li {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 4px;
}

.legal-placeholder {
    background: #fff3cd;
    border: 1px solid #ffc107;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 0.85rem;
    color: #856404;
    font-style: normal;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .why__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .contact__inner {
        gap: 52px;
    }
}

@media (max-width: 860px) {
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact__inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact__desc {
        max-width: 100%;
    }

    .contact__botanical {
        display: none;
    }
}

@media (max-width: 700px) {
    .nav__links {
        display: none;
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(19, 23, 16, 0.98);
        flex-direction: column;
        align-items: flex-start;
        padding: 28px;
        gap: 22px;
        border-top: 1px solid rgba(243, 239, 230, 0.08);
        backdrop-filter: blur(12px);
    }

    .nav__links.open {
        display: flex;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__cta {
        padding: 12px 28px !important;
    }

    .why__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .examples__grid {
        grid-template-columns: 1fr;
    }

    .hero__deco {
        opacity: 0.15;
        width: 100px;
        right: 20px;
    }
}

@media (max-width: 560px) {
    .services__grid {
        grid-template-columns: 1fr;
    }

    .why__grid {
        grid-template-columns: 1fr;
    }

    .form-row--2 {
        flex-direction: column;
    }

    .footer__inner {
        flex-direction: column;
        gap: 32px;
    }

    .footer__legal {
        align-items: flex-start;
    }
}