:root{--primary:#2563eb;--primary-dark:#1d4ed8;--primary-light:#60a5fa;--primary-bg:#eff6ff;--success:#047857;--success-light:#d1fae5;--warning:#d97706;--warning-light:#fef3c7;--danger:#dc2626;--danger-light:#fee2e2;--bg-dark:#162240;--bg-dark-alt:#1e2d50;--bg-light:#f8fafc;--bg-white:#ffffff;--text-dark:#0f172a;--text-medium:#475569;--text-light:#4b5563;--text-white:#f1f5f9;--border:#e2e8f0;--border-dark:#cbd5e1;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 4px 12px rgba(0,0,0,0.08);--shadow-lg:0 10px 30px rgba(0,0,0,0.1);--shadow-xl:0 20px 60px rgba(0,0,0,0.12);--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--transition:0.25s cubic-bezier(0.4,0,0.2,1);--container-max:1200px;--header-height:70px;}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;font-size:16px;line-height:1.6;color:var(--text-dark);background:var(--bg-light);overflow-x:hidden;}
h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700;color:var(--text-dark);}
h1{font-size:2.5rem;}
h2{font-size:2rem;}
h3{font-size:1.5rem;}
h4{font-size:1.25rem;}
p{margin-bottom:1rem;}
a{color:var(--primary);text-decoration:underline;text-underline-offset:2px;transition:color var(--transition);}
a:hover{color:var(--primary-dark);}
.skip-link{position:absolute;top:-100%;left:0;z-index:10000;padding:0.75rem 1.5rem;background:var(--primary);color:white;font-weight:600;text-decoration:none;border-radius:0 0 var(--radius-sm) 0;transition:top var(--transition);}
.skip-link:focus{top:0;}
.nav-list a:focus-visible,.btn:focus-visible,.mobile-menu-btn:focus-visible,.rss-btn:focus-visible,.rss-dot:focus-visible,.scroll-top:focus-visible,.faq-question:focus-visible{outline:3px solid var(--primary-light);outline-offset:2px;}
.cookie-banner .btn:focus-visible{outline:3px solid var(--primary-light);outline-offset:2px;}
.container{max-width:var(--container-max);margin:0 auto;padding:0 20px;}
.section-title{text-align:center;font-size:2.2rem;margin-bottom:1rem;color:var(--text-dark);}
.section-desc{text-align:center;max-width:700px;margin:0 auto 3rem;color:var(--text-medium);font-size:1.1rem;}
.btn{display:inline-flex;align-items:center;gap:0.5rem;padding:0.875rem 1.75rem;border-radius:var(--radius-md);font-weight:600;font-size:1rem;cursor:pointer;transition:all var(--transition);border:2px solid transparent;text-align:center;text-decoration:none;}
.btn-primary{background:var(--primary);color:white;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-secondary{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-secondary:hover{background:var(--primary);color:white;}
.btn-small{padding:0.5rem 1rem;font-size:0.875rem;}
.header{position:sticky;top:0;z-index:1000;background:var(--bg-dark);box-shadow:0 2px 20px rgba(0,0,0,0.15);height:var(--header-height);}
.header-content{display:flex;align-items:center;height:100%;max-width:var(--container-max);margin:0 auto;padding:0 20px;}
.logo{display:flex;align-items:center;gap:0.5rem;font-size:1.35rem;color:var(--text-white);text-decoration:none;flex-shrink:0;margin-right:2rem;}
.logo-icon{font-size:1.5rem;}
.logo strong{color:var(--primary-light);}
.logo:hover{color:white;}
.mobile-menu-btn{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-white);padding:0.25rem;}
.nav{flex:1;display:flex;justify-content:center;}
.nav-list{display:flex;list-style:none;gap:0.5rem;padding:0;margin:0;}
.nav-list a{color:var(--text-white);font-weight:500;padding:0.6rem 0.75rem;position:relative;font-size:0.85rem;white-space:nowrap;border-radius:var(--radius-sm);transition:background var(--transition),color var(--transition);text-decoration:none;}
.nav-list a:hover{background:rgba(255,255,255,0.1);color:white;}
.nav-list a.active{background:rgba(255,255,255,0.1);color:white;}
.hero{background:linear-gradient(135deg,#162240 0%,#1e3a5f 50%,#2563eb 100%);color:white;padding:80px 0 80px;text-align:center;position:relative;overflow:hidden;}
.hero::before{content:'';position:absolute;top:-50%;right:-10%;width:800px;height:800px;background:radial-gradient(circle,rgba(96,165,250,0.12) 0%,transparent 70%);border-radius:50%;}
.hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:600px;height:600px;background:radial-gradient(circle,rgba(5,150,105,0.08) 0%,transparent 70%);border-radius:50%;}
.hero-content{position:relative;z-index:1;}
.hero h1{font-size:3.2rem;color:white;margin-bottom:1rem;text-shadow:0 2px 4px rgba(0,0,0,0.2);}
.hero-subtitle{font-size:1.2rem;max-width:650px;margin:0 auto 2rem;opacity:0.9;line-height:1.7;}
.hero-buttons{display:flex;gap:1rem;justify-content:center;margin-bottom:3rem;}
.hero-stats{display:flex;gap:2rem;justify-content:center;flex-wrap:wrap;margin-bottom:2rem;}
.hero-stat{text-align:center;}
.hero-stat-num{font-size:1.8rem;font-weight:700;color:#93c5fd;}
.hero-stat-label{font-size:0.85rem;color:#cbd5e1;margin-top:0.2rem;}
.hero-badges{display:flex;gap:0.75rem;justify-content:center;flex-wrap:wrap;}
.badge{background:rgba(255,255,255,0.12);border:1px solid rgba(255,255,255,0.15);padding:0.5rem 1rem;border-radius:20px;font-size:0.85rem;backdrop-filter:blur(10px);}
.tips-section{padding:80px 0;background:var(--bg-white);}
.tips-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;}
.tip-card{padding:2rem;background:white;border-radius:var(--radius-lg);border:1px solid var(--border);transition:transform var(--transition),box-shadow var(--transition);}
.tip-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.tip-icon{font-size:2rem;margin-bottom:0.75rem;}
.tip-card h3{margin-bottom:0.5rem;font-size:1.1rem;}
.tip-card p{color:var(--text-medium);font-size:0.95rem;margin:0;}
.calculator-section{padding:80px 0;background:var(--bg-light);}
.privacy-notice{background:#eff6ff;border-left:4px solid var(--primary);padding:1rem 1.5rem;border-radius:0 var(--radius-md) var(--radius-md) 0;margin-bottom:2rem;display:flex;align-items:flex-start;gap:1rem;max-width:900px;margin-left:auto;margin-right:auto;}
.privacy-icon{font-size:1.5rem;}
.calculator-container{background:var(--bg-white);border-radius:var(--radius-xl);padding:2.5rem;box-shadow:var(--shadow-xl);max-width:900px;margin:0 auto;border:1px solid var(--border);}
.calculator-grid{display:flex;flex-direction:column;gap:2rem;}
.calc-section h3{margin-bottom:1rem;font-size:1.2rem;display:flex;align-items:center;gap:0.5rem;}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;}
.form-group{display:flex;flex-direction:column;}
.form-group label{font-weight:600;margin-bottom:0.35rem;font-size:0.9rem;color:var(--text-dark);}
.form-group input,.form-group select{padding:0.75rem;border:2px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;transition:border-color var(--transition),box-shadow var(--transition);background:white;}
.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,0.1);}
.checkbox-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:0.75rem;}
.checkbox-item{display:flex;align-items:center;gap:0.5rem;padding:0.75rem 1rem;border:2px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);user-select:none;font-size:0.9rem;}
.checkbox-item:hover{border-color:var(--primary-light);background:#eff6ff;}
.checkbox-item.selected{border-color:var(--primary);background:#eff6ff;font-weight:600;}
.checkbox-item input[type="checkbox"]{width:18px;height:18px;accent-color:var(--primary);cursor:pointer;}
.calc-buttons{display:flex;gap:1rem;justify-content:center;margin-top:2rem;flex-wrap:wrap;}
.results-section{margin-top:2.5rem;padding-top:2rem;border-top:2px solid var(--border);}
.results-section.hidden{display:none;}
.results-header{text-align:center;margin-bottom:2rem;}
.total-savings-label{font-size:1.1rem;color:var(--text-medium);margin-bottom:0.5rem;}
.total-savings{font-size:3.5rem;font-weight:800;color:var(--success);line-height:1;}
.total-savings-unit{font-size:1.1rem;color:var(--text-light);font-weight:500;}
.summary-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin-bottom:2rem;}
.summary-card{background:white;padding:1.5rem 1rem;border-radius:var(--radius-md);text-align:center;border:1px solid var(--border);transition:transform var(--transition),box-shadow var(--transition);}
.summary-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.summary-card .summary-icon{font-size:1.75rem;display:block;margin-bottom:0.5rem;}
.summary-card .summary-value{font-size:1.25rem;font-weight:700;color:var(--text-dark);}
.summary-card .summary-label{font-size:0.8rem;color:var(--text-light);margin-top:0.25rem;}
.highlight-card{background:linear-gradient(135deg,#059669,#10b981) !important;color:white;}
.highlight-card .summary-value{color:white;}
.highlight-card .summary-label{color:rgba(255,255,255,0.92);}
.results-details{background:white;padding:2rem;border-radius:var(--radius-lg);margin-bottom:1.5rem;border:1px solid var(--border);}
.results-details h3{margin-bottom:1rem;text-align:center;}
.category-list{list-style:none;}
.category-item{display:flex;align-items:center;justify-content:space-between;padding:0.75rem 1rem;border-bottom:1px solid var(--border);gap:1rem;}
.category-item:last-child{border-bottom:none;}
.category-info{flex:1;}
.category-name{font-weight:600;display:flex;align-items:center;gap:0.5rem;}
.category-detail{font-size:0.8rem;color:var(--text-light);}
.category-savings{text-align:right;font-weight:700;color:var(--success);white-space:nowrap;}
.payback-badge{display:inline-block;padding:0.2rem 0.6rem;border-radius:1rem;font-size:0.75rem;font-weight:600;margin-left:0.5rem;}
.payback-fast{background:var(--success-light);color:#00332e;font-weight:700;}
.payback-medium{background:var(--warning-light);color:#92400e;}
.payback-slow{background:var(--danger-light);color:#991b1b;}
.bar-chart{margin-top:1.5rem;}
.bar-row{display:flex;align-items:center;margin-bottom:0.75rem;gap:0.75rem;}
.bar-label{width:140px;font-size:0.85rem;text-align:right;flex-shrink:0;}
.bar-track{flex:1;background:var(--border);border-radius:1rem;height:24px;overflow:hidden;}
.bar-fill{height:100%;border-radius:1rem;transition:width 0.5s ease;display:flex;align-items:center;padding-left:0.75rem;font-size:0.75rem;color:white;font-weight:600;min-width:fit-content;}
.bar-fill-thermostat{background:#3b82f6;}
.bar-fill-lighting{background:#d97706;}
.bar-fill-standby{background:#dc2626;}
.bar-fill-shutter{background:#8b5cf6;}
.bar-fill-heating{background:#ec4899;}
.co2-comparison{background:#f0fdf4;border-radius:var(--radius-md);padding:1.5rem;text-align:center;display:flex;align-items:center;justify-content:center;gap:1rem;margin-bottom:1.5rem;}
.co2-icon{font-size:2rem;}
#co2-text{font-size:1.1rem;}
#co2-text strong{color:#00332e;font-weight:800;}
.results-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;}
.sources{text-align:center;font-size:0.8rem;color:var(--text-light);margin-top:1.5rem;margin-bottom:0;}
.potentials-section{padding:80px 0;background:var(--bg-white);}
.potentials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-bottom:3rem;}
.potential-card{background:white;border-radius:var(--radius-lg);padding:2rem;border:1px solid var(--border);transition:transform var(--transition),box-shadow var(--transition);}
.potential-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.potential-header{display:flex;align-items:center;gap:0.75rem;margin-bottom:1rem;}
.potential-icon{font-size:2rem;}
.potential-header h3{font-size:1.2rem;margin:0;}
.potential-stats{display:flex;gap:1.5rem;margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border);}
.stat{text-align:center;}
.stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--success);}
.stat-label{font-size:0.8rem;color:var(--text-light);}
.potential-desc{font-size:0.95rem;color:var(--text-medium);margin-bottom:1rem;}
.potential-features{list-style:none;font-size:0.9rem;}
.potential-features li{padding:0.25rem 0;padding-left:1.5rem;position:relative;}
.potential-features li::before{content:'✓';position:absolute;left:0;color:var(--success);font-weight:bold;}
.comparison-table{background:var(--bg-light);border-radius:var(--radius-lg);padding:2rem;overflow-x:auto;}
.comparison-table h3{margin-bottom:1.5rem;text-align:center;}
.comparison-table table{width:100%;border-collapse:collapse;background:white;border-radius:var(--radius-md);overflow:hidden;}
.comparison-table th,.comparison-table td{padding:1rem;text-align:left;border-bottom:1px solid var(--border);}
.comparison-table th{background:var(--primary);color:white;font-weight:600;}
.comparison-table tr:hover{background:#f1f5f9;}
.table-note{font-size:0.85rem;color:var(--text-light);margin-top:1rem;text-align:center;}
.systems-section{padding:80px 0;background:var(--bg-light);}
.systems-table{background:var(--bg-white);border-radius:var(--radius-lg);padding:1.5rem;margin-bottom:3rem;overflow-x:auto;}
.systems-table table{width:100%;border-collapse:collapse;min-width:700px;}
.systems-table th,.systems-table td{padding:1rem;text-align:left;border-bottom:1px solid var(--border);}
.systems-table th{background:var(--primary);color:white;font-weight:600;}
.systems-table tr:hover{background:#f1f5f9;}
.recommendations{margin-bottom:3rem;}
.recommendations h3{text-align:center;margin-bottom:1.5rem;}
.rec-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;}
.rec-card{background:white;padding:2rem 1.5rem;border-radius:var(--radius-lg);text-align:center;border:1px solid var(--border);transition:transform var(--transition),box-shadow var(--transition);}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.rec-icon{font-size:2.5rem;margin-bottom:1rem;}
.rec-card h4{margin-bottom:0.5rem;}
.rec-card p{font-size:0.95rem;color:var(--text-medium);margin:0;}
.standards-info{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem;}
.standards-info h3{margin-bottom:1.5rem;text-align:center;}
.standards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;}
.standard-card{background:white;border:1px solid var(--border);padding:1.25rem;border-radius:var(--radius-md);transition:transform var(--transition),box-shadow var(--transition);}
.standard-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.standard-card h4{margin-bottom:0.5rem;}
.standard-card p{font-size:0.9rem;color:var(--text-medium);margin-bottom:0.75rem;}
.standard-badge{display:inline-block;background:var(--primary);color:white;padding:0.25rem 0.75rem;border-radius:1rem;font-size:0.75rem;font-weight:600;}
.security-section{padding:80px 0;background:var(--bg-white);}
.security-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-bottom:2rem;}
.security-card{background:white;border-radius:var(--radius-lg);padding:2rem;border:1px solid var(--border);transition:transform var(--transition),box-shadow var(--transition);}
.security-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.security-icon{font-size:2rem;margin-bottom:0.75rem;}
.security-card h3{margin-bottom:0.75rem;font-size:1.15rem;}
.security-card p{font-size:0.95rem;color:var(--text-medium);margin-bottom:1rem;}
.security-card ul{list-style:none;font-size:0.9rem;}
.security-card li{padding:0.25rem 0;padding-left:1rem;position:relative;}
.security-card li::before{content:'•';position:absolute;left:0;color:var(--primary);}
.security-warning{background:var(--warning-light);border-left:4px solid var(--warning);padding:1rem 1.5rem;border-radius:0 var(--radius-md) var(--radius-md) 0;display:flex;align-items:flex-start;gap:1rem;max-width:800px;margin:0 auto;}
.warning-icon{font-size:1.5rem;}
.ha-section{padding:80px 0;background:var(--bg-light);}
.ha-intro{background:var(--bg-white);border-radius:var(--radius-lg);padding:2rem;text-align:center;margin-bottom:2rem;max-width:800px;margin-left:auto;margin-right:auto;}
.ha-badge{display:inline-block;background:var(--success);color:white;padding:0.25rem 1rem;border-radius:1rem;font-size:0.85rem;font-weight:600;margin-bottom:1rem;}
.ha-intro h3{margin-bottom:1rem;}
.ha-intro p{font-size:1.05rem;color:var(--text-medium);margin-bottom:1.5rem;}
.ha-stats{display:flex;justify-content:center;gap:3rem;flex-wrap:wrap;}
.ha-stat{text-align:center;}
.stat-num{display:block;font-size:2rem;font-weight:700;color:var(--primary);}
.stat-text{font-size:0.9rem;color:var(--text-light);}
.ha-comparison{background:var(--bg-white);border-radius:var(--radius-lg);padding:1.5rem;margin-bottom:2rem;overflow-x:auto;}
.ha-comparison h3{text-align:center;margin-bottom:1.5rem;}
.ha-comparison table{width:100%;border-collapse:collapse;min-width:500px;}
.ha-comparison th,.ha-comparison td{padding:1rem;text-align:left;border-bottom:1px solid var(--border);}
.ha-comparison th{background:var(--primary);color:white;}
.ha-hardware{margin-bottom:2rem;}
.ha-hardware h3{text-align:center;margin-bottom:1.5rem;}
.hardware-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;}
.hardware-card{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.5rem;position:relative;transition:transform var(--transition),box-shadow var(--transition);}
.hardware-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.hardware-rank{position:absolute;top:-10px;right:-10px;width:36px;height:36px;background:var(--primary);color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;}
.hardware-card h4{margin-bottom:0.25rem;}
.hardware-price{font-size:1.25rem;color:var(--success);font-weight:700;margin-bottom:1rem;}
.hardware-card ul{list-style:none;font-size:0.9rem;}
.hardware-card li{padding:0.25rem 0;padding-left:1rem;position:relative;}
.hardware-card li::before{content:'✓';position:absolute;left:0;color:var(--success);}
.ha-install{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem;margin-bottom:2rem;}
.ha-install h3{text-align:center;margin-bottom:1.5rem;}
.install-steps{display:flex;flex-direction:column;gap:1rem;max-width:700px;margin:0 auto;}
.step{display:flex;gap:1rem;align-items:flex-start;}
.step-num{width:36px;height:36px;background:var(--primary);color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0;}
.step-content h4{margin-bottom:0.25rem;font-size:1rem;}
.step-content p{font-size:0.9rem;color:var(--text-medium);margin:0;}
.ha-automations{margin-bottom:2rem;}
.ha-automations h3{text-align:center;margin-bottom:1.5rem;}
.auto-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;}
.auto-card{background:white;border:1px solid var(--border);padding:1.25rem;border-radius:var(--radius-md);text-align:center;transition:transform var(--transition),box-shadow var(--transition);}
.auto-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.auto-card h4{margin-bottom:0.5rem;color:var(--primary);}
.auto-card p{font-size:0.9rem;color:var(--text-medium);margin:0;}
.ha-voice{background:var(--bg-white);border-radius:var(--radius-lg);padding:2rem;margin-bottom:2rem;}
.ha-voice h3{text-align:center;margin-bottom:1rem;}
.ha-voice p{text-align:center;margin-bottom:1rem;}
.voice-list{list-style:none;max-width:600px;margin:0 auto;}
.voice-list li{padding:0.5rem 0;padding-left:1.5rem;position:relative;}
.voice-list li::before{content:'🎤';position:absolute;left:0;}
.ha-privacy{background:var(--success-light);border-radius:var(--radius-lg);padding:2rem;}
.ha-privacy h3{text-align:center;margin-bottom:1.5rem;color:#065f46;}
.privacy-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;text-align:center;}
.privacy-item{background:white;padding:1rem;border-radius:var(--radius-md);font-weight:500;}
.install-section{padding:80px 0;background:var(--bg-white);}
.install-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:1.5rem;margin-bottom:3rem;}
.install-card{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.5rem;position:relative;transition:transform var(--transition),box-shadow var(--transition);}
.install-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.install-num{position:absolute;top:-12px;left:-12px;width:36px;height:36px;background:var(--primary);color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem;}
.install-card h3{font-size:1.1rem;margin-bottom:0.75rem;margin-top:0.5rem;}
.install-card p{font-size:0.95rem;color:var(--text-medium);margin-bottom:0.75rem;}
.install-card ul,.install-card ol{font-size:0.9rem;padding-left:1.25rem;}
.install-card li{padding:0.25rem 0;}
.mini-table{width:100%;border-collapse:collapse;font-size:0.85rem;margin-top:0.5rem;}
.mini-table th,.mini-table td{padding:0.5rem;border:1px solid var(--border);text-align:left;}
.mini-table th{background:var(--bg-white);}
.checklist{background:white;border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem;}
.checklist h3{text-align:center;margin-bottom:1.5rem;}
.checklist-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem;max-width:900px;margin:0 auto;}
.check-item{display:flex;align-items:center;gap:0.75rem;padding:0.75rem;background:white;border-radius:var(--radius-sm);cursor:pointer;transition:background var(--transition);}
.check-item:hover{background:#f1f5f9;}
.testimonials-section{padding:80px 0;background:var(--bg-light);}
.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;max-width:1000px;margin:0 auto;}
.testimonial-card{background:white;padding:2rem;border-radius:var(--radius-lg);border:1px solid var(--border);transition:transform var(--transition),box-shadow var(--transition);}
.testimonial-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.testimonial-stars{font-size:1.2rem;margin-bottom:0.75rem;}
.testimonial-text{font-size:0.95rem;color:var(--text-medium);line-height:1.7;margin-bottom:1.25rem;font-style:italic;}
.testimonial-author strong{display:block;font-size:0.9rem;color:var(--text-dark);}
.testimonial-author span{font-size:0.8rem;color:var(--text-light);}
.newsletter-section{padding:80px 0;background:var(--bg-dark);}
.newsletter-box{max-width:550px;margin:0 auto;text-align:center;color:var(--text-white);}
.newsletter-box h3{color:white;font-size:1.5rem;margin-bottom:0.75rem;}
.newsletter-box p{color:#94a3b8;font-size:0.95rem;margin-bottom:1.5rem;}
.newsletter-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.newsletter-form{display:flex;gap:0.75rem;max-width:450px;margin:0 auto;}
.newsletter-form input{flex:1;padding:0.75rem 1rem;border:1px solid rgba(255,255,255,0.15);border-radius:var(--radius-sm);background:rgba(255,255,255,0.08);color:white;font-size:0.95rem;}
.newsletter-form input:focus{outline:none;border-color:var(--primary-light);}
.newsletter-form input::placeholder{color:#94a3b8;}
.newsletter-form .btn{flex-shrink:0;}
.newsletter-hint{font-size:0.8rem !important;opacity:0.6;margin-top:0.75rem !important;}

@media (max-width:500px){.newsletter-form{flex-direction:column;}
}
.footer{background:var(--bg-dark);color:var(--text-white);padding:60px 0 20px;position:relative;}
.footer::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--success),var(--primary-light));}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2rem;margin-bottom:2rem;}

@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;}
}

@media (max-width:600px){.footer-grid{grid-template-columns:1fr;}
}
.footer-col h4{color:white;margin-bottom:1rem;font-size:1.1rem;}
.footer-col p{font-size:0.9rem;line-height:1.7;color:#cbd5e1;}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:0.6rem;}
.footer-col a{color:#cbd5e1;text-decoration:none;transition:color var(--transition),padding-left var(--transition);}
.footer-col a:hover{color:white;padding-left:4px;}
.footer-social{display:flex;gap:0.75rem;margin-top:1rem;}
.footer-social a{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;background:rgba(255,255,255,0.08);border-radius:50%;font-size:1.2rem;text-decoration:none;transition:background var(--transition),transform var(--transition);}
.footer-social a:hover{background:var(--primary);transform:translateY(-2px);padding-left:0;}
.footer-newsletter{margin-top:1rem;}
.footer-newsletter input{width:100%;padding:0.65rem 0.75rem;border:1px solid rgba(255,255,255,0.15);border-radius:var(--radius-sm);background:rgba(255,255,255,0.08);color:white;font-size:0.9rem;margin-bottom:0.5rem;}
.footer-newsletter input::placeholder{color:#94a3b8;}
.footer-newsletter .btn{width:100%;justify-content:center;padding:0.65rem;font-size:0.9rem;}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding-top:1.5rem;text-align:center;}
.footer-bottom p{margin:0;font-size:0.85rem;color:#94a3b8;}
.footer-note{color:var(--success-light);margin-top:0.5rem !important;}
.cookie-banner{position:fixed;bottom:0;left:0;right:0;background:white;box-shadow:0 -4px 10px rgba(0,0,0,0.1);padding:1rem;z-index:2000;}
.cookie-banner.hidden{display:none;}
.cookie-content{display:flex;justify-content:space-between;align-items:center;max-width:var(--container-max);margin:0 auto;gap:1rem;flex-wrap:wrap;}
.cookie-content p{margin:0;font-size:0.95rem;}

@media (max-width:1100px){.nav{flex:none;}
.nav-list{display:none;position:absolute;top:var(--header-height);left:0;right:0;background:var(--bg-dark-alt);flex-direction:column;padding:1rem;box-shadow:0 10px 30px rgba(0,0,0,0.3);z-index:999;}
.nav-list.active{display:flex;}
.nav-list li{margin:0;}
.nav-list a{display:block;padding:0.75rem 1rem;color:var(--text-white);}
.nav-list a:hover{background:rgba(255,255,255,0.1);}
.mobile-menu-btn{display:block;}
.hero h1{font-size:2rem;}
.hero-subtitle{font-size:1rem;}
.hero-buttons{flex-direction:column;}
.section-title{font-size:1.75rem;}
.total-savings{font-size:2.5rem;}
.form-grid{grid-template-columns:1fr;}
.checkbox-grid{grid-template-columns:1fr;}
.summary-cards{grid-template-columns:1fr 1fr;}
.bar-label{width:100px;font-size:0.75rem;}
}

@media (max-width:480px){.hero{padding:60px 0;}
.hero h1{font-size:1.75rem;}
.hero-badges{flex-direction:column;align-items:center;}
.badge{font-size:0.8rem;}
.calc-buttons{flex-direction:column;}
.calc-buttons .btn{width:100%;justify-content:center;}
.summary-cards{grid-template-columns:1fr;}
.potentials-grid,.security-grid,.hardware-grid,.rec-grid{grid-template-columns:1fr;}
.install-grid{grid-template-columns:1fr;}
}
.scroll-top{position:fixed;bottom:30px;right:30px;width:48px;height:48px;background:var(--primary);color:white;border:none;border-radius:50%;font-size:1.5rem;cursor:pointer;box-shadow:var(--shadow-lg);transition:all var(--transition);opacity:0;visibility:hidden;transform:translateY(20px);z-index:999;}
.scroll-top.visible{opacity:1;visibility:visible;transform:translateY(0);}
.scroll-top:hover{background:var(--primary-dark);transform:translateY(-4px);box-shadow:0 12px 20px -8px rgba(37,99,235,0.4);}
.scroll-top:active{transform:scale(0.95);}
@keyframes bounceUp{0%,100%{transform:translateY(0);}
50%{transform:translateY(-6px);}
}
.scroll-top.visible:hover{animation:bounceUp 0.6s ease infinite;}
.rss-section{padding:80px 0;background:var(--bg-white);}
.rss-loading{text-align:center;padding:3rem;color:var(--text-light);font-size:1.1rem;}
.rss-carousel{position:relative;max-width:900px;margin:0 auto;}
.rss-carousel-track{position:relative;overflow:hidden;border-radius:var(--radius-lg);min-height:200px;}
.rss-slide{background:white;border:1px solid var(--border);padding:2rem;border-radius:var(--radius-lg);display:none;animation:fadeIn 0.4s ease;}
.rss-slide.active{display:block;}
@keyframes fadeIn{from{opacity:0;transform:translateX(30px);}
to{opacity:1;transform:translateX(0);}
}
.rss-slide-date{font-size:0.85rem;color:var(--text-light);margin-bottom:0.5rem;}
.rss-slide h3{font-size:1.3rem;margin-bottom:0.75rem;line-height:1.4;}
.rss-slide h3 a{color:var(--text-dark);text-decoration:none;}
.rss-slide h3 a:hover{color:var(--primary);}
.rss-slide p{font-size:0.95rem;color:var(--text-medium);margin-bottom:1rem;line-height:1.6;}
.rss-slide-link{display:inline-flex;align-items:center;gap:0.5rem;font-weight:600;color:var(--primary);text-decoration:none;}
.rss-controls{display:flex;align-items:center;justify-content:center;gap:1.5rem;margin-top:1.5rem;}
.rss-btn{width:44px;height:44px;border-radius:50%;border:2px solid var(--border);background:white;font-size:1.2rem;cursor:pointer;transition:all var(--transition);display:flex;align-items:center;justify-content:center;color:var(--text-medium);}
.rss-btn:hover{border-color:var(--primary);color:var(--primary);background:#eff6ff;}
.rss-dots{display:flex;gap:0.5rem;}
.rss-dot{width:24px;height:24px;border-radius:50%;background:var(--border);border:2px solid transparent;cursor:pointer;transition:all var(--transition);padding:0;position:relative;}
.rss-dot::after{content:'';position:absolute;top:50%;left:50%;width:10px;height:10px;border-radius:50%;background:var(--border);transform:translate(-50%,-50%);transition:background var(--transition);}
.rss-dot.active{background:var(--primary);border-color:var(--primary);}
.rss-dot.active::after{background:white;}
.rss-counter{font-size:0.85rem;color:var(--text-light);font-weight:500;}
.rss-error{text-align:center;padding:2rem;color:var(--text-light);font-size:0.95rem;}

@media (max-width:600px){.rss-slide{padding:1.5rem;}
.rss-slide h3{font-size:1.1rem;}
.rss-controls{gap:1rem;}
}
.ad-placeholder{padding:30px 0;background:var(--bg-light);}
.ad-box{border:2px dashed var(--border-dark);border-radius:var(--radius-md);padding:1.5rem;text-align:center;background:white;position:relative;transition:border-color var(--transition);}
.ad-box:hover{border-color:var(--primary-light);}
.ad-label{position:absolute;top:-10px;left:50%;transform:translateX(-50%);background:var(--bg-light);padding:0 0.75rem;font-size:0.75rem;color:var(--text-light);text-transform:uppercase;letter-spacing:1px;}
.ad-content p{margin:0;color:var(--text-light);font-size:0.95rem;}
.ad-content a{color:var(--primary);font-weight:600;}

@media (max-width:480px){.scroll-top{bottom:20px;right:20px;width:40px;height:40px;font-size:1.2rem;}
.rss-grid{grid-template-columns:1fr;}
}
.solar-section{padding:80px 0;background:var(--bg-light);}
.solar-container{background:white;border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow-md);}
.solar-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem;}

@media (max-width:768px){.solar-grid{grid-template-columns:1fr;}
.solar-container{padding:1.25rem;}
}
.contact-section{padding:80px 0;background:white;}
.contact-form{max-width:650px;margin:0 auto;}
.contact-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;}
.contact-form .form-group{margin-bottom:1rem;}
.contact-form input,.contact-form textarea{width:100%;padding:0.75rem;border:2px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;font-family:inherit;resize:vertical;transition:border-color var(--transition),box-shadow var(--transition);background:white;box-sizing:border-box;}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,0.1);}
.contact-privacy{margin-bottom:1rem;}.contact-form .check-item{align-items:flex-start;flex-wrap:wrap;gap:0.4rem;justify-content:flex-start;padding-left:0;}.contact-form .check-item input{margin-top:0.2em;}.contact-form .check-item span{flex:1 1 100%;word-break:break-word;}
.contact-privacy-link{font-size:0.85rem;margin-top:0.25rem;}
.contact-hint{font-size:0.85rem;color:var(--text-light);margin-top:0.75rem;}

@media (max-width:600px){.contact-form-grid{grid-template-columns:1fr;}
}
.faq-section{padding:80px 0;background:var(--bg-light);}
.faq-container{max-width:800px;margin:0 auto;}
.faq-item{background:white;border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:0.75rem;overflow:hidden;transition:box-shadow var(--transition);}
.faq-item:hover{box-shadow:0 2px 8px rgba(0,0,0,0.08);}
.faq-question{padding:1.2rem 1.5rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:1rem;color:var(--text-dark);list-style:none;user-select:none;transition:background var(--transition);}
.faq-question::-webkit-details-marker{display:none;}
.faq-question:hover{background:var(--bg-light);}
.faq-icon{font-size:1.4rem;color:var(--primary);transition:transform var(--transition);flex-shrink:0;margin-left:1rem;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-answer{padding:0 1.5rem 1.2rem;color:var(--text-light);line-height:1.7;font-size:0.95rem;}
.faq-answer a{color:var(--primary);font-weight:600;text-decoration:underline;}
.faq-answer a:hover{color:var(--primary-dark);}
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px);}
to{opacity:1;transform:translateY(0);}
}
.tip-card,.potential-card,.security-card,.rec-card,.hardware-card,.install-card{animation:fadeInUp 0.5s ease forwards;}
.tip-card:nth-child(1){animation-delay:0.1s;}
.tip-card:nth-child(2){animation-delay:0.2s;}
.tip-card:nth-child(3){animation-delay:0.3s;}
.tip-card:nth-child(4){animation-delay:0.4s;}

@media print{body{background:white;color:#0f172a;}
.no-print{display:none !important;}
}