/* =========================================
   NewEnergyRevolutionSystem.com - style.css
   Pure HTML/CSS/JS — inspiration from waterfreedomsystemreview + smartwaterboxsreview
   Mobile-first, no framework, lightweight for Cloudflare Pages
   ========================================= */

/* --- CSS Variables --- */
:root {
  --color-primary: #0f3d5e;
  --color-primary-dark: #0a2e48;
  --color-primary-light: #e0eef7;
  --color-accent: #f59e0b;
  --color-accent-dark: #d97706;
  --color-accent-light: #fef3c7;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-dark: #0f172a;
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-text-muted: #94a3b8;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-energy: #eab308;

  --font-sans: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.05);

  --container-max: 1140px;
  --container-narrow: 760px;
  --header-height: 64px;
  --transition: 0.2s ease;
}

/* Reset */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--color-primary);text-decoration:none}
a:hover{color:var(--color-primary-dark)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}

/* Utilities */
.container{max-width:var(--container-max);margin-inline:auto;padding-inline:var(--space-md)}
@media(min-width:640px){.container{padding-inline:var(--space-lg)}}
.section{padding-block:var(--space-2xl)}
@media(min-width:768px){.section{padding-block:var(--space-3xl)}}
.section-alt{background:var(--color-bg-alt)}
.text-center{text-align:center}
.eyebrow{display:inline-block;font-size:var(--text-xs);font-weight:700;letter-spacing:0.08em;text-transform:uppercase;color:var(--color-primary);background:var(--color-primary-light);padding:4px 10px;border-radius:var(--radius-full);margin-bottom:var(--space-md)}
.disclosure-pill{display:inline-flex;align-items:center;gap:6px;font-size:var(--text-xs);color:var(--color-text-light);background:#fff;border:1px solid var(--color-border);padding:6px 10px;border-radius:var(--radius-full);margin-top:10px}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--color-border);height:var(--header-height)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-height);gap:var(--space-md)}
.logo{font-weight:800;font-size:1.05rem;color:var(--color-text);letter-spacing:-0.02em;line-height:1.1;white-space:nowrap}
.logo span{color:var(--color-primary)}
.logo small{display:block;font-weight:500;font-size:0.62rem;letter-spacing:0.06em;text-transform:uppercase;color:var(--color-text-light)}
.nav-menu{display:flex;align-items:center;gap:var(--space-xs)}
.nav-menu a,.nav-menu button.nav-link-btn{font-size:var(--text-sm);font-weight:500;color:var(--color-text);padding:6px 12px;border-radius:var(--radius-sm);background:none;border:none;transition:background var(--transition),color var(--transition)}
.nav-menu a:hover,.nav-menu button.nav-link-btn:hover{background:var(--color-bg-alt);color:var(--color-primary)}
.header-cta{display:inline-flex;align-items:center;justify-content:center;background:#dc2626;color:#fff;font-weight:800;font-size:var(--text-sm);padding:9px 18px;border-radius:var(--radius-full);border:none;white-space:nowrap;box-shadow:0 2px 8px rgba(220,38,38,0.35);animation:ctaPulse 2s infinite;position:relative}
.header-cta:hover{background:#b91c1c;color:#fff;transform:translateY(-1px);box-shadow:0 4px 12px rgba(220,38,38,0.5)}
@keyframes ctaPulse{0%{box-shadow:0 0 0 0 rgba(220,38,38,0.7),0 2px 8px rgba(220,38,38,0.35);transform:scale(1)}50%{box-shadow:0 0 0 10px rgba(220,38,38,0),0 2px 8px rgba(220,38,38,0.35);transform:scale(1.03)}100%{box-shadow:0 0 0 0 rgba(220,38,38,0),0 2px 8px rgba(220,38,38,0.35);transform:scale(1)}}
.cta-flash-red{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:#dc2626;color:#fff !important;font-weight:800;font-size:var(--text-base);padding:16px 32px;border-radius:var(--radius-md);border:2px solid #dc2626;box-shadow:0 4px 14px rgba(220,38,38,0.4);animation:ctaFlashRed 1.1s infinite;text-transform:uppercase;letter-spacing:0.02em;line-height:1.2;text-align:center}
.cta-flash-red:hover{background:#b91c1c;border-color:#b91c1c;color:#fff !important;transform:translateY(-1px) scale(1.02);box-shadow:0 6px 18px rgba(220,38,38,0.5)}
@keyframes ctaFlashRed{0%,100%{background:#dc2626;box-shadow:0 0 0 0 rgba(220,38,38,0.7),0 4px 14px rgba(220,38,38,0.4);transform:scale(1)}50%{background:#ef4444;box-shadow:0 0 0 12px rgba(220,38,38,0),0 4px 14px rgba(220,38,38,0.4);transform:scale(1.04)}}
@media(prefers-reduced-motion:reduce){.header-cta,.cta-flash-red{animation:none}}
.nav-toggle{display:none;background:none;border:none;padding:6px;color:var(--color-text)}
.nav-toggle svg{width:24px;height:24px}
@media(max-width:860px){.nav-toggle{display:flex}.nav-menu{position:fixed;inset:var(--header-height) 0 0 0;flex-direction:column;align-items:stretch;gap:0;background:#fff;padding:var(--space-lg);transform:translateX(100%);transition:transform 0.3s ease;overflow-y:auto;border-top:1px solid var(--color-border)}.nav-menu.is-open{transform:translateX(0)}.nav-menu a,.nav-menu button.nav-link-btn{padding:14px 0;border-bottom:1px solid var(--color-border-light);border-radius:0;text-align:left;font-size:var(--text-base)}.nav-menu .header-cta{margin-top:var(--space-lg);text-align:center;justify-content:center;padding:14px 24px;font-size:var(--text-base);border-radius:var(--radius-md)}}

/* Buttons */
.btn-primary,.cta-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--color-accent);color:#fff;font-weight:700;font-size:var(--text-base);padding:14px 28px;border-radius:var(--radius-md);border:none;box-shadow:var(--shadow-md);transition:background var(--transition),transform var(--transition),box-shadow var(--transition);text-align:center;line-height:1.3}
.btn-primary:hover,.cta-button:hover{background:var(--color-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.btn-secondary{display:inline-flex;align-items:center;justify-content:center;background:#fff;color:var(--color-primary);font-weight:600;font-size:var(--text-sm);padding:12px 22px;border-radius:var(--radius-md);border:1.5px solid var(--color-border);transition:border-color var(--transition),background var(--transition)}
.btn-secondary:hover{border-color:var(--color-primary);background:var(--color-primary-light);color:var(--color-primary-dark)}
.btn-block{width:100%}
.cta-subtext{font-size:var(--text-xs);color:var(--color-text-light);margin-top:8px;text-align:center}
.hero-cta-wrap{display:flex;flex-direction:column;align-items:flex-start;gap:4px}
@media(max-width:640px){.hero-cta-wrap{align-items:stretch}}

/* Hero */
.hero{padding-block:var(--space-xl) var(--space-2xl);background:linear-gradient(180deg,#e6f0f8 0%, #f0f7ff 35%, #fff 70%);overflow:hidden}
.hero-inner{display:grid;gap:var(--space-xl);align-items:center}
@media(min-width:900px){.hero-inner{grid-template-columns:1.08fr 0.92fr;gap:var(--space-2xl)}.hero{padding-block:var(--space-2xl) var(--space-3xl)}}
.hero h1{font-size:clamp(1.7rem,3.8vw,2.55rem);font-weight:800;line-height:1.15;letter-spacing:-0.03em;color:var(--color-text);margin-bottom:var(--space-sm)}
.hero h1 span{color:var(--color-primary)}
.hero-tagline{font-size:clamp(1.1rem,2.4vw,1.45rem);font-weight:700;line-height:1.3;color:var(--color-primary);margin-bottom:12px;letter-spacing:-0.02em}
.hero-sub{font-size:var(--text-base);color:var(--color-text-light);line-height:1.7;margin-bottom:var(--space-lg);max-width:56ch}
.hero-visual{position:relative;background:#fff;border-radius:var(--radius-xl);padding:var(--space-md);box-shadow:var(--shadow-xl);border:1px solid var(--color-border)}
.hero-visual img{border-radius:var(--radius-lg);width:100%;height:auto;object-fit:cover;background:var(--color-bg-alt)}
.hero-badge{position:absolute;bottom:-12px;left:50%;transform:translateX(-50%);background:var(--color-bg-dark);color:#fff;font-size:var(--text-xs);font-weight:600;padding:6px 14px;border-radius:var(--radius-full);white-space:nowrap;display:flex;align-items:center;gap:6px;box-shadow:var(--shadow-md)}
.trust-bar{display:flex;flex-wrap:wrap;gap:var(--space-md) var(--space-lg);margin-top:var(--space-xl);padding-top:var(--space-lg);border-top:1px solid var(--color-border)}
.trust-item{display:flex;align-items:center;gap:8px;font-size:var(--text-sm);color:var(--color-text-light);font-weight:500}

/* Headings */
.section-heading{font-size:clamp(1.35rem,2.8vw,1.9rem);font-weight:800;letter-spacing:-0.02em;line-height:1.2;margin-bottom:var(--space-md)}
.section-heading.center{text-align:center}
.section-sub{font-size:var(--text-base);color:var(--color-text-light);max-width:58ch;line-height:1.7}
.section-sub.center{margin-inline:auto;text-align:center}

/* Cards */
.problem-grid{display:grid;gap:var(--space-lg);margin-top:var(--space-xl)}
@media(min-width:640px){.problem-grid{grid-template-columns:repeat(3,1fr)}}
.problem-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-lg);text-align:center}
.problem-card .icon-wrap{width:44px;height:44px;border-radius:var(--radius-md);background:var(--color-primary-light);display:flex;align-items:center;justify-content:center;margin:0 auto var(--space-md);color:var(--color-primary);font-size:22px}
.problem-card h3{font-size:var(--text-base);font-weight:700;margin-bottom:6px}
.problem-card p{font-size:var(--text-sm);color:var(--color-text-light);line-height:1.6}

.benefits-grid{display:grid;gap:var(--space-md);margin-top:var(--space-xl)}
@media(min-width:640px){.benefits-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:960px){.benefits-grid{grid-template-columns:repeat(3,1fr)}}
.benefit-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-lg);transition:box-shadow var(--transition),transform var(--transition)}
.benefit-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.benefit-card .benefit-icon{width:40px;height:40px;border-radius:var(--radius-sm);background:var(--color-accent-light);display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-md);font-size:20px}
.benefit-card h3{font-size:var(--text-base);font-weight:700;margin-bottom:6px}
.benefit-card p{font-size:var(--text-sm);color:var(--color-text-light);line-height:1.6}

/* Inside */
.inside-grid{display:grid;gap:var(--space-xl);align-items:start;margin-top:var(--space-xl)}
@media(min-width:860px){.inside-grid{grid-template-columns:1fr 1fr}}
.inside-list{display:flex;flex-direction:column;gap:var(--space-md)}
.inside-item{display:flex;gap:var(--space-md);align-items:flex-start}
.inside-check{width:28px;height:28px;border-radius:50%;background:var(--color-success);color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px;font-size:14px}
.inside-item h4{font-size:var(--text-base);font-weight:600;margin-bottom:2px}
.inside-item p{font-size:var(--text-sm);color:var(--color-text-light)}
.inside-visual{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-md);box-shadow:var(--shadow-md)}
.inside-visual img{border-radius:var(--radius-md);width:100%;height:auto;object-fit:contain;background:var(--color-bg-alt);display:block}

/* Expectations / Callouts */
.expectations{background:var(--color-bg-alt);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-lg);margin-top:var(--space-lg)}
.expectations h3{font-size:var(--text-lg);font-weight:700;margin-bottom:var(--space-sm);display:flex;align-items:center;gap:8px}
.expectations p{font-size:var(--text-sm);color:var(--color-text-light);line-height:1.7}
.emphasis-box{background:linear-gradient(135deg,#fef3c7 0%, #fff 100%);border:1px solid #fde68a;border-radius:var(--radius-lg);padding:var(--space-lg)}
.warning-box{background:#fff7ed;border:1px solid #fed7aa;border-radius:var(--radius-lg);padding:var(--space-lg)}

/* Comparison */
.comparison-wrap{overflow-x:auto;margin-top:var(--space-xl);-webkit-overflow-scrolling:touch}
.comparison-table{width:100%;min-width:560px;border-collapse:collapse;background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--color-border)}
.comparison-table th,.comparison-table td{padding:14px 16px;text-align:left;font-size:var(--text-sm);border-bottom:1px solid var(--color-border-light)}
.comparison-table th{background:var(--color-bg-dark);color:#fff;font-weight:600}
.comparison-table tr:last-child td{border-bottom:none}
.comparison-table td:first-child{font-weight:600;color:var(--color-text)}
.badge-good{display:inline-block;background:#dcfce7;color:#166534;font-size:var(--text-xs);font-weight:700;padding:2px 8px;border-radius:var(--radius-full)}
.badge-mid{display:inline-block;background:#fef3c7;color:#92400e;font-size:var(--text-xs);font-weight:700;padding:2px 8px;border-radius:var(--radius-full)}
.badge-bad{display:inline-block;background:#fee2e2;color:#991b1b;font-size:var(--text-xs);font-weight:700;padding:2px 8px;border-radius:var(--radius-full)}

/* TOC / anchor nav for long page */
.anchor-nav{position:sticky;top:var(--header-height);z-index:90;background:#fff;border-bottom:1px solid var(--color-border);padding:10px 0;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}
.anchor-nav a{display:inline-block;font-size:var(--text-xs);font-weight:600;color:var(--color-text-light);padding:6px 10px;border-radius:var(--radius-full);border:1px solid transparent;margin-right:6px}
.anchor-nav a:hover{background:var(--color-bg-alt);color:var(--color-primary);border-color:var(--color-border)}

/* Content long-form */
.long-content{max-width:760px;margin:0 auto}
.long-content p{color:var(--color-text-light);line-height:1.78;margin-bottom:16px;font-size:var(--text-base)}
.long-content ul{margin:0 0 var(--space-md) var(--space-lg);color:var(--color-text-light)}
.long-content li{margin-bottom:8px;line-height:1.65;list-style:disc;font-size:var(--text-sm)}
.long-content h3{font-size:var(--text-lg);font-weight:700;margin:var(--space-xl) 0 var(--space-sm);color:var(--color-text)}
.long-content h4{font-size:var(--text-base);font-weight:700;margin:var(--space-lg) 0 var(--space-sm);color:var(--color-text)}

/* FAQ */
.faq-list{max-width:var(--container-narrow);margin:var(--space-xl) auto 0;display:flex;flex-direction:column;gap:var(--space-sm)}
.faq-item{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);padding:16px 20px;background:none;border:none;text-align:left;font-weight:600;font-size:var(--text-base);color:var(--color-text)}
.faq-question svg{flex-shrink:0;transition:transform var(--transition);color:var(--color-text-light)}
.faq-item.is-open .faq-question svg{transform:rotate(180deg)}
.faq-answer{padding:0 20px 16px;font-size:var(--text-sm);color:var(--color-text-light);line-height:1.7;display:none}
.faq-item.is-open .faq-answer{display:block}

/* Final CTA */
.final-cta{background:linear-gradient(135deg,var(--color-primary) 0%, var(--color-primary-dark) 100%);color:#fff;text-align:center;border-radius:var(--radius-xl);padding:var(--space-2xl) var(--space-lg);margin-top:var(--space-xl)}
.final-cta h2{font-size:clamp(1.4rem,3vw,1.95rem);font-weight:800;margin-bottom:var(--space-sm);color:#fff}
.final-cta p{color:rgba(255,255,255,0.85);margin-bottom:var(--space-lg);font-size:var(--text-base);max-width:640px;margin-inline:auto}
.final-cta .cta-button{background:#fff;color:var(--color-primary)}
.final-cta .cta-button:hover{background:var(--color-bg-alt);color:var(--color-primary-dark)}
.final-cta .cta-subtext{color:rgba(255,255,255,0.7)}

/* Contact Modal */
.contact-modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:var(--space-md)}
.contact-modal.is-open{display:flex}
.contact-overlay{position:absolute;inset:0;background:rgba(15,23,42,0.55);backdrop-filter:blur(2px)}
.contact-dialog{position:relative;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);max-width:480px;width:100%;padding:var(--space-xl);z-index:1;animation:modalIn 0.25s ease}
@keyframes modalIn{from{opacity:0;transform:translateY(10px) scale(0.98)}to{opacity:1;transform:translateY(0) scale(1)}}
.contact-dialog h2{font-size:var(--text-xl);font-weight:700;margin-bottom:var(--space-sm)}
.contact-dialog p{font-size:var(--text-sm);color:var(--color-text-light);line-height:1.7;margin-bottom:var(--space-md)}
.contact-email{display:flex;align-items:center;gap:10px;background:var(--color-bg-alt);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:12px 16px;margin:var(--space-md) 0;font-weight:600;font-size:var(--text-base);color:var(--color-primary);word-break:break-all}
.contact-close{position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:50%;border:1px solid var(--color-border);background:#fff;display:flex;align-items:center;justify-content:center;color:var(--color-text-light);transition:background var(--transition)}
.contact-close:hover{background:var(--color-bg-alt);color:var(--color-text)}
.contact-note{font-size:var(--text-xs);color:var(--color-text-muted);background:var(--color-accent-light);border-radius:var(--radius-sm);padding:10px 12px;line-height:1.6}

/* Footer */
.site-footer{background:var(--color-bg-dark);color:rgba(255,255,255,0.7);padding:var(--space-2xl) 0 var(--space-xl);margin-top:var(--space-2xl)}
.footer-grid{display:grid;gap:var(--space-xl)}
@media(min-width:640px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr}}
.footer-brand h3{color:#fff;font-weight:800;font-size:var(--text-lg);margin-bottom:6px}
.footer-brand h3 span{color:var(--color-accent)}
.footer-brand p{font-size:var(--text-sm);line-height:1.6;color:rgba(255,255,255,0.6);max-width:36ch}
.footer-col h4{color:#fff;font-size:var(--text-sm);font-weight:700;margin-bottom:var(--space-md);text-transform:uppercase;letter-spacing:0.06em}
.footer-col a{display:block;font-size:var(--text-sm);color:rgba(255,255,255,0.65);padding:4px 0;transition:color var(--transition)}
.footer-col a:hover{color:#fff}
.footer-col button.footer-link-btn{display:block;background:none;border:none;padding:4px 0;font-size:var(--text-sm);color:rgba(255,255,255,0.65);text-align:left;transition:color var(--transition)}
.footer-col button.footer-link-btn:hover{color:#fff}
.footer-bottom{margin-top:var(--space-xl);padding-top:var(--space-lg);border-top:1px solid rgba(255,255,255,0.1);display:flex;flex-wrap:wrap;gap:var(--space-md);justify-content:space-between;align-items:center;font-size:var(--text-xs);color:rgba(255,255,255,0.45);line-height:1.6}
.affiliate-disclosure{background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.08);border-radius:var(--radius-md);padding:var(--space-md);margin-top:var(--space-lg);font-size:var(--text-xs);line-height:1.6;color:rgba(255,255,255,0.5)}
.legal-content{max-width:var(--container-narrow);margin-inline:auto}
.legal-content h1{font-size:clamp(1.5rem,3vw,2rem);font-weight:800;margin-bottom:var(--space-sm)}
.legal-content .updated{font-size:var(--text-sm);color:var(--color-text-muted);margin-bottom:var(--space-xl)}
.legal-content h2{font-size:var(--text-lg);font-weight:700;margin:var(--space-xl) 0 var(--space-sm)}
.legal-content p,.legal-content li{font-size:var(--text-sm);color:var(--color-text);line-height:1.75}
.legal-content p{margin-bottom:var(--space-md)}
.legal-content ul{margin:0 0 var(--space-md) var(--space-lg)}
.legal-content ul li{list-style:disc;margin-bottom:4px}
.breadcrumb{font-size:var(--text-sm);color:var(--color-text-light);margin-bottom:var(--space-lg)}
.breadcrumb a{color:var(--color-text-light)}
.breadcrumb a:hover{color:var(--color-primary)}
.breadcrumb span.sep{margin:0 6px;color:var(--color-text-muted)}
a:focus-visible,button:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}
@media print{.site-header,.site-footer,.contact-modal,.anchor-nav{display:none !important}}