/* ========================================
   ENERGIEWENDE HAUS - Transformation Theme
   Bold Before/After Design
   ======================================== */

:root {
    --orange: #ea580c;
    --orange-light: #fed7aa;
    --orange-dark: #c2410c;
    --blue: #0284c7;
    --blue-light: #bae6fd;
    --blue-dark: #0369a1;
    --dark: #1c1917;
    --dark-800: #292524;
    --dark-700: #44403c;
    --light: #fffbeb;
    --light-100: #fef3c7;
    --green: #16a34a;
    --green-light: #bbf7d0;
    --white: #ffffff;
    --gray-100: #f5f5f4;
    --gray-200: #e7e5e4;
    --gray-400: #a8a29e;
    --gray-600: #57534e;

    --font-heading: 'Manrope', sans-serif;
    --font-body: 'Inter', sans-serif;

    --shadow-sm: 0 1px 2px rgba(28,25,23,0.06);
    --shadow-md: 0 4px 12px rgba(28,25,23,0.08);
    --shadow-lg: 0 12px 40px rgba(28,25,23,0.12);
    --shadow-xl: 0 24px 60px rgba(28,25,23,0.16);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* Reset */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:var(--font-body);color:var(--dark);background:var(--white);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{cursor:pointer;border:none;background:none;font-family:inherit}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);line-height:1.2;font-weight:700}

/* Utility */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.text-orange{color:var(--orange)}
.text-blue{color:var(--blue)}
.text-green{color:var(--green)}
.text-gradient{background:linear-gradient(135deg,var(--orange),var(--blue));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-heading);font-weight:700;border-radius:var(--radius-sm);transition:all .3s ease;text-align:center;justify-content:center}
.btn--sm{padding:10px 20px;font-size:.875rem}
.btn--md{padding:12px 28px;font-size:1rem}
.btn--lg{padding:16px 36px;font-size:1.1rem}
.btn--primary{background:var(--orange);color:var(--white);box-shadow:0 4px 16px rgba(234,88,12,0.3)}
.btn--primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(234,88,12,0.4)}
.btn--outline{border:2px solid var(--dark);color:var(--dark)}
.btn--outline:hover{background:var(--dark);color:var(--white)}
.btn--white{background:var(--white);color:var(--orange);font-weight:700}
.btn--white:hover{background:var(--light);transform:translateY(-2px)}
.btn--blue{background:var(--blue);color:var(--white)}
.btn--blue:hover{background:var(--blue-dark);transform:translateY(-2px)}

/* Navigation */
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--gray-200);transition:all .3s ease}
.nav--scrolled{box-shadow:var(--shadow-md)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.nav__logo{display:flex;align-items:center;gap:8px;font-family:var(--font-heading);font-size:1.35rem;font-weight:800;color:var(--dark)}
.nav__logo-icon{font-size:1.5rem}
.nav__menu{display:flex;align-items:center;gap:28px}
.nav__menu a{font-size:.9rem;font-weight:500;color:var(--dark-700);transition:color .2s}
.nav__menu a:hover{color:var(--orange)}
.nav__toggle{display:none;flex-direction:column;gap:5px;padding:4px}
.nav__toggle span{display:block;width:24px;height:2px;background:var(--dark);transition:all .3s}

/* Hero */
.hero{position:relative;padding:140px 0 100px;background:linear-gradient(135deg,rgba(255,251,235,0.85) 0%,rgba(255,255,255,0.85) 50%,rgba(186,230,253,0.85) 100%), url('../images/hero.png') center/cover no-repeat;overflow:hidden}
.hero__content{max-width:800px;position:relative;z-index:2}
.hero__badge{display:inline-block;padding:8px 20px;background:var(--orange);color:var(--white);border-radius:100px;font-size:.85rem;font-weight:700;font-family:var(--font-heading);margin-bottom:24px;letter-spacing:.5px;text-transform:uppercase}
.hero__title{font-size:3.5rem;font-weight:800;line-height:1.1;margin-bottom:24px;color:var(--dark)}
.hero__subtitle{font-size:1.25rem;color:var(--gray-600);margin-bottom:40px;max-width:640px}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:60px}
.hero__stats{display:flex;gap:48px;flex-wrap:wrap}
.hero__stat{text-align:left}
.hero__stat-number{display:block;font-family:var(--font-heading);font-size:2.5rem;font-weight:800;color:var(--blue)}
.hero__stat-label{font-size:.9rem;color:var(--gray-600)}
.hero__bg-element{position:absolute;right:-200px;top:-100px;width:700px;height:700px;border-radius:50%;background:linear-gradient(135deg,rgba(234,88,12,0.06),rgba(2,132,199,0.06));z-index:1}

/* Section Common */
.section{padding:100px 0}
.section--gray{background:var(--gray-100)}
.section__header{text-align:center;max-width:700px;margin:0 auto 60px}
.section__badge{display:inline-block;padding:6px 16px;background:var(--light);color:var(--orange);border-radius:100px;font-size:.8rem;font-weight:700;font-family:var(--font-heading);margin-bottom:16px;letter-spacing:.5px;text-transform:uppercase;border:1px solid var(--orange-light)}
.section__title{font-size:2.5rem;font-weight:800;margin-bottom:16px}
.section__subtitle{font-size:1.1rem;color:var(--gray-600)}

/* Before/After */
.transformation{background:var(--gray-100)}
.ba-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:32px;align-items:start;margin-bottom:40px}
.ba-card{background:var(--white);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-md)}
.ba-card--before{border-top:4px solid var(--orange)}
.ba-card--after{border-top:4px solid var(--blue)}
.ba-card__header{display:flex;align-items:center;gap:12px;margin-bottom:24px}
.ba-card__icon{font-size:1.5rem}
.ba-card__title{font-size:1.3rem;font-weight:800}
.ba-card__list{display:flex;flex-direction:column;gap:16px}
.ba-card__list li{display:flex;justify-content:space-between;align-items:center;padding-bottom:16px;border-bottom:1px solid var(--gray-200)}
.ba-card__list li:last-child{border-bottom:none;padding-bottom:0}
.ba-card__label{font-size:.9rem;color:var(--gray-600)}
.ba-card__value{font-family:var(--font-heading);font-weight:700;font-size:.95rem}
.ba-card__value--bad{color:var(--orange)}
.ba-card__value--good{color:var(--green)}
.ba-card__total{margin-top:24px;padding-top:20px;border-top:2px solid var(--gray-200);display:flex;justify-content:space-between;align-items:center;font-size:1.1rem}
.ba-card__total strong{font-size:1.4rem}

.ba-arrow{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding-top:80px}
.ba-arrow__icon{display:flex;align-items:center;justify-content:center;width:64px;height:64px;background:linear-gradient(135deg,var(--orange),var(--blue));color:var(--white);border-radius:50%;font-size:1.5rem;font-weight:700}
.ba-arrow__text{font-family:var(--font-heading);font-weight:700;font-size:.85rem;color:var(--gray-600);text-transform:uppercase;letter-spacing:1px}

.ba-savings{text-align:center}
.ba-savings__inner{display:inline-block;background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:var(--white);padding:24px 48px;border-radius:var(--radius-lg);box-shadow:0 8px 32px rgba(2,132,199,0.3)}
.ba-savings__label{display:block;font-size:.9rem;opacity:.9;margin-bottom:4px}
.ba-savings__amount{display:block;font-family:var(--font-heading);font-size:2.5rem;font-weight:800;margin-bottom:4px}
.ba-savings__detail{font-size:.9rem;opacity:.85}

/* Steps */
.steps__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px;margin-bottom:48px}
.step-card{background:var(--white);border-radius:var(--radius-lg);padding:32px 24px;box-shadow:var(--shadow-md);border:1px solid var(--gray-200);position:relative;overflow:hidden;transition:all .3s ease}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--blue-light)}
.step-card__number{position:absolute;top:16px;right:16px;font-family:var(--font-heading);font-size:3rem;font-weight:800;color:var(--gray-200);line-height:1}
.step-card__icon{font-size:2rem;margin-bottom:16px}
.step-card__title{font-size:1.15rem;font-weight:800;margin-bottom:12px}
.step-card__text{font-size:.9rem;color:var(--gray-600);margin-bottom:16px}
.step-card__details{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.step-card__details li{font-size:.85rem;color:var(--dark-700);padding-left:16px;position:relative}
.step-card__details li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--blue)}
.step-card__cost{display:inline-block;font-family:var(--font-heading);font-weight:700;font-size:.9rem;color:var(--blue);background:var(--blue-light);padding:4px 12px;border-radius:100px}
.steps__cta{text-align:center}

/* ROI */
.roi{background:var(--dark);color:var(--white)}
.roi .section__badge{background:var(--dark-800);color:var(--orange);border-color:var(--dark-700)}
.roi .section__subtitle{color:var(--gray-400)}
.roi__grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-bottom:60px}
.roi__card{background:var(--dark-800);border-radius:var(--radius-lg);padding:32px}
.roi__card--highlight{background:linear-gradient(135deg,rgba(2,132,199,0.15),rgba(22,163,74,0.1));border:1px solid rgba(2,132,199,0.3)}
.roi__card-title{font-size:1.3rem;font-weight:800;margin-bottom:24px}
.roi__breakdown{display:flex;flex-direction:column;gap:12px}
.roi__item{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--dark-700);font-size:.9rem;color:var(--gray-400)}
.roi__item span:last-child{font-family:var(--font-heading);font-weight:600;color:var(--white)}
.roi__item--total{border-bottom:none;padding-top:16px;margin-top:8px;border-top:2px solid var(--dark-700)}
.roi__item--total span{font-size:1.05rem;font-weight:700;color:var(--white)}
.roi__item--green span:last-child{color:var(--green)}
.roi__result{margin-top:24px;padding:20px;background:linear-gradient(135deg,var(--green),#15803d);border-radius:var(--radius-md);text-align:center}
.roi__result-label{display:block;font-size:.9rem;margin-bottom:4px}
.roi__result-value{font-family:var(--font-heading);font-size:2rem;font-weight:800}

.roi__timeline{max-width:800px;margin:0 auto}
.roi__timeline-title{text-align:center;font-size:1.2rem;margin-bottom:32px}
.roi__bar-container{position:relative;padding:0 20px}
.roi__bar{height:12px;background:var(--dark-800);border-radius:100px;position:relative;overflow:visible}
.roi__bar-fill{height:100%;width:75%;background:linear-gradient(90deg,var(--orange),var(--blue),var(--green));border-radius:100px;animation:barFill 2s ease forwards}
@keyframes barFill{from{width:0}to{width:75%}}
.roi__bar-marker{position:absolute;top:24px;transform:translateX(-50%)}
.roi__bar-marker span{display:block;text-align:center;font-size:.75rem;color:var(--gray-400);white-space:nowrap}
.roi__bar-marker--break span{color:var(--green);font-weight:700}

/* Facts */
.facts{background:var(--light)}
.facts__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.fact-card{background:var(--white);border-radius:var(--radius-lg);padding:32px 24px;text-align:center;box-shadow:var(--shadow-sm);border:1px solid var(--orange-light);transition:all .3s ease}
.fact-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.fact-card__number{display:block;font-family:var(--font-heading);font-size:2.2rem;font-weight:800;color:var(--orange);margin-bottom:12px}
.fact-card__text{font-size:.9rem;color:var(--gray-600)}

/* Blog Preview */
.blog-preview__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:40px}
.blog-card{background:var(--white);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-sm);border:1px solid var(--gray-200);transition:all .3s ease;display:flex;flex-direction:column}
.blog-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--blue-light)}
.blog-card__category{display:inline-block;padding:4px 12px;background:var(--light);color:var(--orange);border-radius:100px;font-size:.75rem;font-weight:700;font-family:var(--font-heading);margin-bottom:16px;align-self:flex-start;text-transform:uppercase}
.blog-card__title{font-size:1.1rem;font-weight:700;margin-bottom:12px;line-height:1.3}
.blog-card__excerpt{font-size:.9rem;color:var(--gray-600);margin-bottom:16px;flex-grow:1}
.blog-card__link{font-family:var(--font-heading);font-weight:700;color:var(--blue);font-size:.9rem}
.blog-preview__cta{text-align:center}

/* FAQ */
.faq{background:var(--gray-100)}
.faq__list{max-width:800px;margin:0 auto}
.faq__item{margin-bottom:12px}
.faq__question{width:100%;display:flex;justify-content:space-between;align-items:center;padding:20px 24px;background:var(--white);border-radius:var(--radius-md);font-size:1rem;font-weight:600;font-family:var(--font-heading);text-align:left;border:1px solid var(--gray-200);transition:all .3s ease}
.faq__question:hover{border-color:var(--blue-light)}
.faq__question[aria-expanded="true"]{background:var(--blue);color:var(--white);border-color:var(--blue);border-radius:var(--radius-md) var(--radius-md) 0 0}
.faq__icon{font-size:1.5rem;transition:transform .3s;flex-shrink:0;margin-left:16px}
.faq__question[aria-expanded="true"] .faq__icon{transform:rotate(45deg)}
.faq__answer{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq__answer p{padding:20px 24px;background:var(--white);border:1px solid var(--gray-200);border-top:none;border-radius:0 0 var(--radius-md) var(--radius-md);font-size:.95rem;color:var(--gray-600);line-height:1.7}

/* CTA */
.cta{padding:80px 0;background:linear-gradient(135deg,var(--orange),var(--orange-dark))}
.cta__inner{text-align:center;max-width:600px;margin:0 auto}
.cta__title{font-size:2.5rem;font-weight:800;color:var(--white);margin-bottom:16px}
.cta__text{font-size:1.15rem;color:rgba(255,255,255,0.9);margin-bottom:32px}
.cta__actions{margin-bottom:24px}
.cta__trust{display:flex;gap:24px;justify-content:center;flex-wrap:wrap;color:rgba(255,255,255,0.85);font-size:.9rem}

/* Footer */
.footer{background:var(--dark);color:var(--gray-400);padding:80px 0 40px}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer__brand p{margin-top:16px;font-size:.9rem;line-height:1.6}
.footer__links h4{font-family:var(--font-heading);font-weight:700;color:var(--white);font-size:.95rem;margin-bottom:16px}
.footer__links ul{display:flex;flex-direction:column;gap:8px}
.footer__links a{font-size:.9rem;transition:color .2s}
.footer__links a:hover{color:var(--orange)}
.footer__bottom{border-top:1px solid var(--dark-700);padding-top:24px;font-size:.8rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}

/* Blog Page */
.page-header{padding:120px 0 60px;background:linear-gradient(135deg,var(--light),var(--white))}
.page-header__title{font-size:2.8rem;font-weight:800;margin-bottom:12px}
.page-header__subtitle{font-size:1.1rem;color:var(--gray-600)}

.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:60px 0}

/* Blog Article */
.article{padding:120px 0 60px}
.article__header{max-width:800px;margin:0 auto 48px;text-align:center}
.article__category{display:inline-block;padding:6px 16px;background:var(--light);color:var(--orange);border-radius:100px;font-size:.8rem;font-weight:700;font-family:var(--font-heading);margin-bottom:16px;text-transform:uppercase;border:1px solid var(--orange-light)}
.article__title{font-size:2.4rem;font-weight:800;margin-bottom:16px;line-height:1.2}
.article__meta{font-size:.9rem;color:var(--gray-600)}
.article__content{max-width:800px;margin:0 auto}
.article__content h2{font-size:1.8rem;font-weight:800;margin:48px 0 20px;color:var(--dark)}
.article__content h3{font-size:1.3rem;font-weight:700;margin:36px 0 16px;color:var(--dark)}
.article__content p{margin-bottom:20px;color:var(--dark-700);font-size:1.05rem;line-height:1.8}
.article__content ul,.article__content ol{margin:16px 0 24px 24px}
.article__content li{margin-bottom:8px;color:var(--dark-700);font-size:1.05rem;line-height:1.7}
.article__content strong{color:var(--dark);font-weight:600}
.article__content blockquote{border-left:4px solid var(--blue);padding:16px 24px;margin:24px 0;background:var(--gray-100);border-radius:0 var(--radius-md) var(--radius-md) 0;font-style:italic;color:var(--gray-600)}

.article__cta{max-width:800px;margin:48px auto 0;padding:40px;background:linear-gradient(135deg,var(--light),var(--blue-light));border-radius:var(--radius-lg);text-align:center;border:1px solid var(--orange-light)}
.article__cta h3{font-size:1.4rem;margin-bottom:12px}
.article__cta p{color:var(--gray-600);margin-bottom:24px}

/* Info Box */
.info-box{background:var(--blue-light);border:1px solid var(--blue);border-radius:var(--radius-md);padding:24px;margin:24px 0}
.info-box--orange{background:var(--orange-light);border-color:var(--orange)}
.info-box--green{background:var(--green-light);border-color:var(--green)}
.info-box h4{font-size:1rem;margin-bottom:8px;color:var(--dark)}
.info-box p{font-size:.95rem;color:var(--dark-700);margin-bottom:0}

/* Comparison Table */
.comparison-table{width:100%;border-collapse:collapse;margin:24px 0;font-size:.95rem}
.comparison-table th{background:var(--dark);color:var(--white);padding:12px 16px;text-align:left;font-family:var(--font-heading);font-weight:700}
.comparison-table td{padding:12px 16px;border-bottom:1px solid var(--gray-200)}
.comparison-table tr:nth-child(even){background:var(--gray-100)}
.comparison-table tr:hover{background:var(--blue-light)}

/* Legal Pages */
.legal{padding:120px 0 60px}
.legal__content{max-width:800px;margin:0 auto}
.legal__content h1{font-size:2.2rem;margin-bottom:32px}
.legal__content h2{font-size:1.5rem;margin:36px 0 16px}
.legal__content h3{font-size:1.2rem;margin:24px 0 12px}
.legal__content p{margin-bottom:16px;color:var(--dark-700);line-height:1.7}
.legal__content ul{margin:12px 0 20px 24px;list-style:disc}
.legal__content li{margin-bottom:6px;color:var(--dark-700)}

/* Wissen Page */
.wissen-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:60px 0}
.wissen-card{background:var(--white);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-sm);border:1px solid var(--gray-200);transition:all .3s ease}
.wissen-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.wissen-card__icon{font-size:2.5rem;margin-bottom:16px}
.wissen-card__title{font-size:1.15rem;font-weight:700;margin-bottom:12px}
.wissen-card__text{font-size:.9rem;color:var(--gray-600);margin-bottom:16px}
.wissen-card__link{font-family:var(--font-heading);font-weight:700;color:var(--blue);font-size:.9rem}

/* Animations */
.fade-in{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* Responsive */
@media(max-width:1024px){
    .ba-grid{grid-template-columns:1fr;gap:24px}
    .ba-arrow{flex-direction:row;padding:0;justify-content:center}
    .roi__grid{grid-template-columns:1fr}
    .facts__grid{grid-template-columns:repeat(2,1fr)}
    .footer__grid{grid-template-columns:1fr 1fr}
}

@media(max-width:768px){
    .nav__menu{display:none;position:absolute;top:72px;left:0;right:0;background:var(--white);flex-direction:column;padding:24px;gap:16px;border-bottom:1px solid var(--gray-200);box-shadow:var(--shadow-lg)}
    .nav__menu.active{display:flex}
    .nav__toggle{display:flex}
    .hero{padding:120px 0 60px}
    .hero__title{font-size:2.2rem}
    .hero__stats{gap:24px}
    .hero__stat-number{font-size:1.8rem}
    .section{padding:60px 0}
    .section__title{font-size:1.8rem}
    .blog-preview__grid,.blog-grid,.wissen-grid{grid-template-columns:1fr}
    .footer__grid{grid-template-columns:1fr}
    .footer__bottom{flex-direction:column;text-align:center}
    .article__title{font-size:1.8rem}
    .page-header__title{font-size:2rem}
    .cta__title{font-size:1.8rem}
    .ba-savings__amount{font-size:1.8rem}
}

@media(max-width:480px){
    .hero__title{font-size:1.8rem}
    .hero__actions{flex-direction:column}
    .hero__actions .btn{width:100%}
    .steps__grid{grid-template-columns:1fr}
    .facts__grid{grid-template-columns:1fr}
    .ba-savings__inner{padding:20px 24px}
}


/* === Mobile Logo Size === */
@media (max-width: 768px) {
  .logo img, .nav-logo img, .navbar-brand img, .nav-brand img, .navbar__logo img {
    height: 36px !important;
  }
}

/* === Mobile Hero Text === */
@media (max-width: 768px) {
  .hero h1, .hero-content h1, .hero__content h1 { font-size: 2rem; }
}