/* ============================================
   PARTIDA FINAL — CSS Principal
   ============================================ */

:root{
  --bg-primary:#0d1117;
  --bg-secondary:#161b22;
  --bg-card:#1c2128;
  --bg-card-hover:#22272e;
  --bg-sidebar:#0d1117;
  --text-primary:#e6edf3;
  --text-secondary:#8b949e;
  --text-muted:#6e7681;
  --accent:#58a6ff;
  --accent-light:#79c0ff;
  --accent-dark:#388bfd;
  --amber:#ffa726;
  --red:#ef5350;
  --green:#66bb6a;
  --blue:#42a5f5;
  --cyan:#26c6da;
  --purple:#ab47bc;
  --border:#30363d;
  --sidebar-w:270px;
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 4px 24px rgba(0,0,0,.4);
  --transition:all .3s cubic-bezier(.4,0,.2,1);
}

/* ============ LIGHT THEME ============ */
body.light{
  --bg-primary:#f6f8fa;
  --bg-secondary:#eaeef2;
  --bg-card:#ffffff;
  --bg-card-hover:#f6f8fa;
  --bg-sidebar:#ffffff;
  --text-primary:#1f2328;
  --text-secondary:#57606a;
  --text-muted:#8b949e;
  --border:#d0d7de;
  --shadow:0 4px 24px rgba(0,0,0,.1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.7;overflow-x:hidden;transition:background .3s,color .3s}

::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg-primary)}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--accent)}

a{color:var(--accent);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent-light)}

/* ============ SIDEBAR ============ */
.sidebar{position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;background:var(--bg-sidebar);border-right:1px solid var(--border);z-index:100;display:flex;flex-direction:column;transition:transform .3s ease;overflow:hidden}
.sidebar-brand{padding:20px 20px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px;text-decoration:none}
.sidebar-brand svg{width:30px;height:30px;flex-shrink:0}
.sidebar-brand h1{font-size:1rem;font-weight:800;background:linear-gradient(135deg,var(--accent),var(--accent-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}
.sidebar-brand span{display:block;font-size:.6rem;font-weight:500;-webkit-text-fill-color:var(--text-muted);letter-spacing:1.5px;text-transform:uppercase}

.sidebar-nav{flex:1;overflow-y:auto;padding:8px 0}
.nav-section{padding:12px 20px 4px;font-size:.6rem;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--text-muted)}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 20px;color:var(--text-secondary);transition:var(--transition);border-left:3px solid transparent;font-size:.82rem;font-weight:500;text-decoration:none}
.nav-item:hover{background:rgba(88,166,255,.06);color:var(--text-primary)}
.nav-item.active{background:rgba(88,166,255,.1);color:var(--accent);border-left-color:var(--accent)}
.nav-item svg{width:17px;height:17px;flex-shrink:0;opacity:.7}
.nav-item.active svg{opacity:1}
.nav-badge{margin-left:auto;background:var(--accent);color:#fff;font-size:.6rem;font-weight:700;padding:2px 7px;border-radius:10px}
.nav-new{margin-left:auto;background:var(--green);color:#fff;font-size:.55rem;font-weight:700;padding:2px 6px;border-radius:8px;text-transform:uppercase;letter-spacing:.5px}

/* Sidebar footer */
.sidebar-footer{padding:12px 20px;border-top:1px solid var(--border);display:flex;gap:8px}

/* Language toggle */
.lang-toggles{display:flex;align-items:center;gap:6px;padding:8px 20px;margin:4px 0 0;border-bottom:1px solid var(--border)}
.lang-btn{display:inline-block;padding:2px 10px;border-radius:12px;font-size:.72rem;font-weight:600;text-decoration:none;color:var(--text-secondary);background:var(--card);transition:var(--transition);cursor:pointer;letter-spacing:.02em}
.lang-btn:hover{color:var(--accent);background:var(--hover)}
.lang-btn.active{color:#fff;background:var(--accent);cursor:default}

/* Search box */
.search-box{padding:8px 16px;margin:4px 12px 8px}
.search-box input{width:100%;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 12px 8px 32px;color:var(--text-primary);font-size:.8rem;font-family:'Inter',sans-serif;transition:var(--transition);outline:none}
.search-box input:focus{border-color:var(--accent)}
.search-box{position:relative}
.search-box svg{position:absolute;left:24px;top:50%;transform:translateY(-50%);opacity:.4;pointer-events:none}

/* Theme toggle */
.theme-toggle{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-primary);cursor:pointer;color:var(--text-secondary);transition:var(--transition)}
.theme-toggle:hover{border-color:var(--accent);color:var(--accent)}
.theme-toggle svg{width:18px;height:18px}

/* ============ MOBILE ============ */
.menu-toggle{display:none;position:fixed;top:12px;left:12px;z-index:200;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;cursor:pointer;color:var(--text-primary);font-size:.8rem;font-weight:600;align-items:center;gap:8px}
.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:99;cursor:pointer}

/* ============ MAIN ============ */
.main{margin-left:var(--sidebar-w);min-height:100vh;padding:40px;max-width:1100px;text-align:justify;-webkit-hyphens:auto;hyphens:auto}
.main h1,.main h2,.main h3,.main h4,.main h5,.main h6,.section-title,.page-header h1,.page-header h2,.page-header .subtitle,.card h3,.quiz-option,.quiz-btn,.letter-actions,.letter-field label,.nav-item,.quiz-nav,.quiz-result h3,.hero-alert-title{text-align:left}
.main>p{margin-bottom:14px;line-height:1.8;text-align:justify}

/* ============ TEXT JUSTIFICATION & SPACING ============ */
.main p,.main li,.main td,.main dd{text-align:justify;-webkit-hyphens:auto;hyphens:auto}
.main p{margin-bottom:1.1rem;word-break:break-word}
/* Exceptions: only structural/UI elements stay left */
.sidebar p,.nav-item p,.breadcrumb p,.page-header .subtitle,.letter-template p{text-align:left;hyphens:none}

/* ============ PAGE HEADER ============ */
.page-header{margin-bottom:36px;padding:24px;background:linear-gradient(135deg,rgba(88,166,255,.04),rgba(121,192,255,.02));border-radius:var(--radius);position:relative}
.page-header h1,.page-header h2{font-size:1.9rem;font-weight:800;margin-bottom:6px;line-height:1.2;display:flex;align-items:center;gap:12px}
.page-header h2 svg{flex-shrink:0}
.page-header .subtitle{color:var(--text-secondary);font-size:.95rem;max-width:700px;line-height:1.7}
.page-header .accent-line{width:60px;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-light));border-radius:2px;margin-top:16px}

/* Print button */
.btn-print{position:absolute;top:24px;right:24px;display:flex;align-items:center;gap:6px;padding:8px 14px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;color:var(--text-secondary);font-size:.78rem;font-weight:600;font-family:'Inter',sans-serif;transition:var(--transition)}
.btn-print:hover{border-color:var(--accent);color:var(--accent)}
.btn-print svg{width:16px;height:16px}

/* ============ CARDS ============ */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:var(--transition)}
.card:hover{border-color:rgba(88,166,255,.2);box-shadow:0 0 20px rgba(88,166,255,.05)}
.card-grid{display:grid;gap:20px}
.card-grid-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.card-grid-3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.card-grid-4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.card h3{font-size:1.05rem;font-weight:700;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.card p{color:var(--text-secondary);font-size:.85rem;text-align:justify}
.card-link{cursor:pointer}
.card-link:hover{border-color:var(--accent);background:var(--bg-card-hover);transform:translateY(-2px);box-shadow:0 4px 24px rgba(88,166,255,.15)}

/* ============ STAT CARDS ============ */
.stat-card{text-align:center;padding:28px 20px}
.stat-icon{width:44px;height:44px;margin:0 auto 14px;border-radius:50%;display:flex;align-items:center;justify-content:center}
.stat-value{font-size:2.2rem;font-weight:900;font-family:'JetBrains Mono',monospace}
.stat-label{color:var(--text-secondary);font-size:.75rem;margin-top:4px;font-weight:500}

/* ============ HERO SECTION ============ */
.hero{background:linear-gradient(135deg,rgba(88,166,255,.08),rgba(121,192,255,.04));border:1px solid rgba(88,166,255,.15);border-radius:var(--radius);padding:40px 32px;margin-bottom:32px;text-align:center;position:relative;overflow:hidden}
.hero h2{font-size:1.6rem;font-weight:800;margin-bottom:12px;line-height:1.3}
.hero p{color:var(--text-secondary);font-size:.95rem;max-width:600px;margin:0 auto;line-height:1.8;text-align:justify}
.hero .hero-cta{display:inline-flex;align-items:center;gap:8px;margin-top:20px;padding:12px 28px;background:var(--accent);color:#fff;border-radius:var(--radius-sm);font-weight:700;font-size:.9rem;transition:var(--transition)}
.hero .hero-cta:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}

/* ============ HERO ALERT ============ */
.hero-alert{background:linear-gradient(135deg,rgba(88,166,255,.12),rgba(121,192,255,.06));border:1px solid rgba(88,166,255,.25);border-radius:var(--radius);padding:28px;margin-bottom:28px;position:relative;overflow:hidden}
.hero-alert::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(180deg,var(--accent),var(--accent-light))}
.hero-alert p{color:var(--text-secondary);font-size:.875rem;line-height:1.7;padding-left:8px;text-align:justify}
.hero-alert-title{font-size:1.08rem;color:var(--accent);margin:0 0 6px;font-weight:800;line-height:1.4;padding-left:8px}

/* ============ TIP BOX ============ */
.tip-box{border-left:4px solid;padding:16px 20px;background:var(--bg-card);border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin-bottom:16px}
.tip-box.warning{border-color:var(--red);background:rgba(239,83,80,.05)}
.tip-box.info{border-color:var(--blue);background:rgba(66,165,245,.05)}
.tip-box.success{border-color:var(--green);background:rgba(102,187,106,.05)}
.tip-box.accent{border-color:var(--accent);background:rgba(88,166,255,.05)}
.tip-box--warning{border-color:var(--amber);background:rgba(255,167,38,.05)}
.tip-box h4{font-size:.88rem;font-weight:700;margin-bottom:4px}
.tip-box p{font-size:.825rem;color:var(--text-secondary);line-height:1.7;text-align:justify}
.tip-box ul{list-style:none;padding:0;margin-top:6px}
.tip-box li{font-size:.825rem;color:var(--text-secondary);padding:3px 0;display:flex;gap:6px}
.tip-box li::before{content:'\2022';color:var(--accent);font-weight:700;flex-shrink:0}

/* ============ CHECKLIST ============ */
.checklist-category{margin-bottom:20px}
.checklist-category-header{display:flex;align-items:center;justify-content:space-between;padding:13px 18px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);user-select:none}
.checklist-category-header:hover{border-color:rgba(88,166,255,.3)}
.checklist-category-header h4{display:flex;align-items:center;gap:10px;font-size:.9rem;font-weight:600}
.checklist-category-header .cat-count{font-size:.7rem;color:var(--text-muted);font-weight:400;margin-left:8px}
.checklist-category-header .chevron{transition:transform .3s ease;color:var(--text-muted)}
.checklist-category-header.open .chevron{transform:rotate(180deg)}
.checklist-items{max-height:0;overflow:hidden;transition:max-height .4s ease}
.checklist-items.open{max-height:3000px}
.check-item{display:flex;align-items:flex-start;gap:12px;padding:11px 18px;border-bottom:1px solid rgba(255,255,255,.03);transition:var(--transition)}
.check-item:hover{background:rgba(255,255,255,.02)}
.check-item input[type="checkbox"]{appearance:none;-webkit-appearance:none;width:20px;height:20px;min-width:20px;border:2px solid var(--border);border-radius:5px;cursor:pointer;margin-top:2px;transition:var(--transition);position:relative}
.check-item input[type="checkbox"]:checked{background:var(--accent);border-color:var(--accent)}
.check-item input[type="checkbox"]:checked::after{content:'\2713';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-size:11px;font-weight:700}
.check-item label{cursor:pointer;font-size:.85rem;transition:var(--transition)}
.check-item input:checked+label{color:var(--text-muted);text-decoration:line-through}
.item-detail{display:block;font-size:.73rem;color:var(--text-muted);margin-top:2px;line-height:1.5}

.progress-bar-container{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:24px;position:sticky;top:0;z-index:10}
.progress-bar-container h3{font-size:.95rem;font-weight:700;margin-bottom:10px;display:flex;justify-content:space-between}
.progress-bar-container h3 span{color:var(--accent);font-family:'JetBrains Mono',monospace}
.progress-track{height:8px;background:var(--bg-primary);border-radius:4px;overflow:hidden}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-light));border-radius:4px;transition:width .5s ease;width:0}

/* ============ CALCULATOR ============ */
.calc-section{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px}
.calc-section h3{font-size:1.05rem;font-weight:700;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.calc-grid{display:grid;gap:10px}
.calc-item{display:flex;align-items:center;justify-content:space-between;padding:11px 14px;background:var(--bg-primary);border-radius:var(--radius-sm);border:1px solid transparent;transition:var(--transition)}
.calc-item.selected{border-color:var(--accent);background:rgba(88,166,255,.07)}
.calc-item-left{display:flex;align-items:center;gap:10px}
.calc-item-left .watts{font-family:'JetBrains Mono',monospace;font-size:.75rem;color:var(--amber);font-weight:600}
.calc-item label{font-size:.85rem;cursor:pointer}
.calc-item input[type="checkbox"]{appearance:none;-webkit-appearance:none;width:22px;height:22px;min-width:22px;border:2px solid var(--border);border-radius:6px;cursor:pointer;transition:var(--transition);position:relative}
.calc-item input[type="checkbox"]:checked{background:var(--accent);border-color:var(--accent)}
.calc-item input[type="checkbox"]:checked::after{content:'\2713';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-size:12px;font-weight:700}
.calc-item input[type="number"]{width:56px;background:var(--bg-card);border:1px solid var(--border);border-radius:6px;padding:5px 6px;color:var(--text-primary);font-family:'JetBrains Mono',monospace;font-size:.82rem;text-align:center}
.calc-result{background:linear-gradient(135deg,rgba(88,166,255,.1),rgba(121,192,255,.05));border:1px solid rgba(88,166,255,.25);border-radius:var(--radius);padding:28px;text-align:center}
.calc-result .total-watts{font-size:2.8rem;font-weight:900;font-family:'JetBrains Mono',monospace;color:var(--accent)}
.calc-result .total-label{color:var(--text-secondary);font-size:.82rem;margin-bottom:14px}
.calc-recommendation{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:20px;margin-top:16px;text-align:left}
.calc-recommendation h4{font-size:.95rem;margin-bottom:6px}
.calc-recommendation p{font-size:.825rem;color:var(--text-secondary);line-height:1.7}
.calc-recommendation .price{color:var(--amber);font-weight:700;font-family:'JetBrains Mono',monospace}

/* ============ WATER CALC ============ */
.water-input-group{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:20px}
.water-input{flex:1;min-width:150px}
.water-input label{display:block;font-size:.78rem;color:var(--text-secondary);margin-bottom:5px;font-weight:500}
.water-input input,.water-input select{width:100%;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;color:var(--text-primary);font-size:.95rem;font-family:'Inter',sans-serif;transition:var(--transition)}
.water-input input:focus,.water-input select:focus{outline:none;border-color:var(--accent)}
.water-result{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-top:16px}
.water-result-card{background:var(--bg-primary);border-radius:var(--radius-sm);padding:18px;text-align:center;border:1px solid var(--border)}
.water-result-card .wr-value{font-size:1.8rem;font-weight:800;font-family:'JetBrains Mono',monospace}
.water-result-card .wr-label{font-size:.7rem;color:var(--text-secondary);margin-top:4px}
.water-result-card h4{font-size:.82rem;font-weight:700;margin-bottom:8px;color:var(--text-secondary)}
.water-result-card p{font-size:.75rem;color:var(--text-muted);line-height:1.5;margin-top:6px}
.water-result-card .stat-value{font-size:1.5rem;color:var(--accent)}

/* ============ RANGE INPUTS ============ */
input[type="range"]{-webkit-appearance:none;width:100%;height:6px;background:var(--bg-primary);border:1px solid var(--border);border-radius:3px;outline:none;cursor:pointer}
input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;background:var(--accent);border-radius:50%;cursor:pointer;border:none;box-shadow:0 2px 6px rgba(88,166,255,.3)}
input[type="range"]::-moz-range-thumb{width:18px;height:18px;background:var(--accent);border-radius:50%;cursor:pointer;border:none;box-shadow:0 2px 6px rgba(88,166,255,.3)}

/* Water input value display */
.water-input span{display:block;text-align:right;font-size:.78rem;font-family:'JetBrains Mono',monospace;color:var(--accent);font-weight:600;margin-top:4px}

/* ============ DIAGRAM CONTAINER ============ */
.diagram-container{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin:20px 0;text-align:center;overflow-x:auto}
.diagram-container svg{max-width:100%;height:auto}
.diagram-container .diagram-caption{font-size:.78rem;color:var(--text-muted);margin-top:12px;font-style:italic}
.diagram-container svg text{fill:var(--text-primary);font-family:'Inter',sans-serif}
body.light .diagram-container svg text{fill:#1f2328}

/* ============ TIMELINE ============ */
.timeline{position:relative;padding-left:32px}
.timeline::before{content:'';position:absolute;left:11px;top:0;bottom:0;width:2px;background:var(--border)}
.timeline-item{position:relative;margin-bottom:28px}
.timeline-dot{position:absolute;left:-32px;top:4px;width:22px;height:22px;border-radius:50%;border:3px solid;background:var(--bg-primary)}
.timeline-dot.urgent{border-color:var(--red)}
.timeline-dot.week{border-color:var(--amber)}
.timeline-dot.month{border-color:var(--blue)}
.timeline-dot.year{border-color:var(--green)}
.timeline-content{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:20px}
.timeline-content h4{font-size:.95rem;font-weight:700;margin-bottom:10px}
.timeline-content ul{list-style:none;padding:0}
.timeline-content li{padding:5px 0;font-size:.83rem;color:var(--text-secondary);display:flex;align-items:flex-start;gap:8px;line-height:1.6}
.timeline-content li::before{content:'\2192';color:var(--accent);font-weight:700;flex-shrink:0;margin-top:1px}

/* ============ CONTACTS ============ */
.contacts-grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.contact-card{display:flex;align-items:center;gap:20px;padding:18px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);transition:var(--transition)}
.contact-card:hover{border-color:rgba(88,166,255,.3)}
.contact-number{font-size:1.6rem;font-weight:900;font-family:'JetBrains Mono',monospace;color:var(--accent);white-space:nowrap;min-width:140px}
.contact-info h4{font-size:.9rem;font-weight:600}
.contact-info p{font-size:.78rem;color:var(--text-secondary)}

/* ============ TABLES ============ */
.data-table{width:100%;border-collapse:collapse;font-size:.83rem}
.data-table th{background:rgba(255,255,255,.03);padding:11px 14px;text-align:left;font-weight:600;color:var(--text-secondary);font-size:.72rem;text-transform:uppercase;letter-spacing:1px;border-bottom:2px solid var(--border)}
.data-table td{padding:11px 14px;border-bottom:1px solid rgba(255,255,255,.04);vertical-align:top}
.data-table tr:hover td{background:rgba(255,255,255,.02)}
.data-table .positive{color:var(--green);font-weight:600}
.data-table .total td{font-weight:700;border-top:2px solid var(--border);background:rgba(88,166,255,.04)}
body.light .data-table th{background:rgba(0,0,0,.04)}
body.light .data-table td{border-bottom-color:rgba(0,0,0,.06)}
body.light .data-table tr:hover td{background:rgba(0,0,0,.03)}

/* ============ SECTION DIVIDER ============ */
.section-title{font-size:1.15rem;font-weight:700;margin:32px 0 16px;padding-bottom:8px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}

/* ============ ANIMATIONS ============ */
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@keyframes scrollReveal{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}

.fade-in{animation:fadeIn .4s ease}

/* Scroll reveal */
.scroll-reveal{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}
.scroll-reveal.visible{opacity:1;transform:translateY(0)}

/* ============ BREADCRUMB ============ */
.breadcrumb{padding:0 0 16px;font-size:.78rem}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:0;padding:0;margin:0}
.breadcrumb li{display:flex;align-items:center;color:var(--text-muted)}
.breadcrumb li+li::before{content:'>';margin:0 8px;color:var(--text-muted);font-size:.7rem}
.breadcrumb a{color:var(--text-secondary);text-decoration:none;transition:color .2s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb li[aria-current="page"]{color:var(--text-primary);font-weight:600}

/* ============ RELATED ARTICLES ============ */
.related-articles{margin-top:48px;padding-top:32px;border-top:1px solid var(--border)}

/* ============ LAST UPDATED ============ */
.last-updated{font-size:.72rem;color:var(--text-muted);margin-top:10px;font-weight:400}

/* ============ SHARE BUTTONS ============ */
.share-buttons{display:flex;gap:6px;position:absolute;top:24px;right:140px;flex-wrap:wrap}
.share-btn{display:flex;align-items:center;gap:5px;padding:6px 12px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;color:var(--text-secondary);font-size:.72rem;font-weight:600;font-family:'Inter',sans-serif;transition:var(--transition);text-decoration:none}
.share-btn:hover{border-color:var(--accent);color:var(--accent)}
.share-btn svg{width:14px;height:14px}
.share-btn-copied{border-color:var(--green)!important;color:var(--green)!important}

/* ============ BREATHING EXERCISE ============ */
.breathing-container{text-align:center;padding:30px 20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);margin:20px 0}
.breathing-circle{width:120px;height:120px;border-radius:50%;background:rgba(88,166,255,.15);border:3px solid var(--accent);margin:0 auto 20px;display:flex;align-items:center;justify-content:center;font-size:.9rem;font-weight:600;color:var(--accent);transition:transform 4s ease-in-out,background .5s}
.breathing-circle.inhale{transform:scale(1.4);background:rgba(88,166,255,.25)}
.breathing-circle.hold{transform:scale(1.4);background:rgba(88,166,255,.3)}
.breathing-circle.exhale{transform:scale(1);background:rgba(88,166,255,.1)}
.breathing-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 24px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;font-size:.85rem;font-weight:600;font-family:'Inter',sans-serif;transition:var(--transition)}
.breathing-btn:hover{background:var(--accent-dark)}
.breathing-status{margin-top:12px;font-size:.82rem;color:var(--text-secondary);min-height:24px}

/* ============ FAQ ACCORDION ============ */
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:10px;overflow:hidden}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;cursor:pointer;font-size:.9rem;font-weight:600;color:var(--text-primary);transition:var(--transition);user-select:none}
.faq-question:hover{background:rgba(88,166,255,.04)}
.faq-question .chevron{transition:transform .3s ease;color:var(--text-muted);flex-shrink:0}
.faq-question.open .chevron{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-answer.open{max-height:2000px}
.faq-answer-inner{padding:0 20px 16px;font-size:.85rem;color:var(--text-secondary);line-height:1.7;text-align:justify}

/* ============ PRINT ============ */
@media print{
  @page{margin:2cm 2.2cm}
  *{-webkit-print-color-adjust:exact;print-color-adjust:exact}

  /* Hide all UI chrome */
  .sidebar,.menu-toggle,.overlay,.btn-print,.theme-toggle,.sidebar-footer,.search-box,.share-buttons,.lang-toggles,.back-to-top,.breadcrumb,.related-articles,.skip-link,.nav-item,.nav-section,.nav-badge,.nav-new,.breathing-container,.quiz-nav,.quiz-progress,.letter-actions,.glossary-nav,.district-filter,.validation-msg{display:none!important}

  /* Base */
  body{background:#fff!important;color:#222!important;font-size:11pt!important;line-height:1.6!important}
  body.light{background:#fff!important}
  .main{margin-left:0!important;padding:0!important;max-width:100%!important;width:100%!important}
  .main::before,.main::after{display:none!important}
  .scroll-reveal{opacity:1!important;transform:none!important}

  /* Typography */
  h1{font-size:18pt!important;color:#000!important;margin-bottom:4pt!important}
  h2{font-size:14pt!important;color:#111!important;margin-top:18pt!important}
  h3{font-size:12pt!important;color:#222!important}
  h4{font-size:11pt!important;color:#222!important}
  p,li,td,th{font-size:10pt!important;color:#333!important}

  /* Page header */
  .page-header{background:none!important;padding-bottom:12pt!important;margin-bottom:16pt!important;border-bottom:2px solid #222!important}
  .page-header h1,.page-header h2{color:#000!important}
  .page-header .subtitle{font-size:10pt!important;color:#555!important}
  .page-header .accent-line{display:none!important}

  /* Links */
  a{color:#222!important;text-decoration:none!important}
  a[href^="http"]::after{content:" (" attr(href) ")";font-size:7pt;color:#888!important;word-break:break-all}
  a[href^="#"]::after,a[href^="javascript"]::after,.card a::after{content:""!important}

  /* Cards and containers */
  .card,.calc-section,.hero-alert,.hero{background:#fff!important;border:1px solid #ccc!important;box-shadow:none!important;break-inside:avoid}
  .card-grid{display:block!important}
  .card-grid .card{margin-bottom:10pt!important}

  /* Tip boxes */
  .tip-box{border:1px solid #ccc!important;border-left:4px solid #ccc!important;background:#fafafa!important;break-inside:avoid;margin:10pt 0!important;padding:10pt 14pt!important}
  .tip-box.info{border-left-color:#42a5f5!important}
  .tip-box.success{border-left-color:#66bb6a!important}
  .tip-box.warning{border-left-color:#ef5350!important}
  .tip-box h4{color:#222!important;font-size:10pt!important}
  .tip-box p,.tip-box li{color:#444!important;font-size:9pt!important}

  /* Tables */
  .data-table{border:1px solid #bbb!important;border-collapse:collapse!important;width:100%!important}
  .data-table th,.data-table td{border:1px solid #bbb!important;padding:6pt 8pt!important}
  .data-table th{background:#eee!important;color:#000!important;font-size:9pt!important;font-weight:700!important}
  .data-table td{font-size:9pt!important}
  table{break-inside:avoid}

  /* Prevent breaks */
  .checklist-category,.faq-item,.glossary-term,.district-card,.quiz-result-item{break-inside:avoid}

  /* Checklist */
  .checklist-items{max-height:none!important;overflow:visible!important}
  .checklist-category-header .chevron{display:none!important}
  .check-item{border-bottom:1px solid #ddd!important;padding:4pt 0!important}
  .check-item.done{opacity:.55}
  .check-item input[type="checkbox"]{appearance:none!important;-webkit-appearance:none!important;width:12pt!important;height:12pt!important;min-width:12pt!important;border:1.5px solid #333!important;border-radius:2px!important;display:inline-block!important;background:#fff!important;position:relative!important;vertical-align:middle!important;margin-right:6pt!important}
  .check-item input[type="checkbox"]:checked::after{content:'\2713'!important;position:absolute!important;top:50%!important;left:50%!important;transform:translate(-50%,-50%)!important;color:#333!important;font-size:8pt!important;font-weight:700!important}
  .progress-bar-container{display:none!important}

  /* FAQ accordion: expand all */
  .faq-answer{max-height:none!important;overflow:visible!important}
  .faq-question .chevron{display:none!important}
  .faq-question{padding:8pt 0!important}
  .faq-answer-inner{padding:0 0 8pt!important}

  /* Calculators */
  .calc-result{background:#f5f8fc!important;border:1px solid #ccc!important}
  .stat-value{color:#000!important}
  .water-result-card{background:#fafafa!important;border:1px solid #ccc!important}
  input[type="range"]{display:none!important}
  .water-input span{font-size:9pt!important;text-align:left!important;color:#000!important}
  select,.calc-section button{display:none!important}

  /* Letter generator — hide form, show only letter */
  .letter-generator{background:#fff!important;border:none!important;padding:0!important;box-shadow:none!important}
  .letter-generator h3,.letter-field,.entity-fields,.letter-generator .hero-alert,.letter-generator .tip-box{display:none!important}
  .letter-preview{background:#fff!important;border:none!important;padding:0!important;font-size:10.5pt!important;line-height:1.7!important;color:#222!important;white-space:pre-wrap!important;font-family:'Inter',serif!important}
  #resultadoSection .letter-generator{display:block!important}
  #resultadoSection .letter-generator h3{display:none!important}
  #resultadoSection .letter-preview{display:block!important}

  /* Quiz — hide questions, show only results */
  .quiz-container{background:#fff!important;border:none!important;padding:0!important}
  .quiz-question{display:none!important}
  .quiz-result{display:block!important;border:none!important}
  .quiz-result.active{display:block!important}
  .quiz-result-item{background:#fff!important;border:1px solid #ccc!important;padding:8pt 10pt!important;margin-bottom:6pt!important}
  .quiz-result-item.applies{border-left:3px solid #42a5f5!important}
  .quiz-result-item.not-applies{opacity:.4!important;border-left:3px solid #ccc!important}
  .quiz-result-item .urgency{font-size:7pt!important;border:1px solid #ccc!important;background:#f0f0f0!important;color:#333!important}

  /* District directory */
  .district-card{background:#fff!important;border:1px solid #ccc!important}

  /* SVG diagrams */
  svg{max-width:100%!important;height:auto!important}
  svg text{fill:#222!important}

  /* Letter-only print mode — triggered from JS */
  body.print-letter-only .page-header,
  body.print-letter-only .hero-alert,
  body.print-letter-only .tip-box,
  body.print-letter-only .section-title,
  body.print-letter-only .card-grid,
  body.print-letter-only .letter-generator:first-of-type{display:none!important}
  body.print-letter-only #resultadoSection{display:block!important}
  body.print-letter-only #resultadoSection .section-title{display:block!important;font-size:14pt!important;margin-bottom:12pt!important}
  body.print-letter-only .letter-preview{font-size:11pt!important;line-height:1.8!important}
}

/* ============ SKIP LINK ============ */
.skip-link{position:absolute;top:-100%;left:16px;background:var(--accent);color:#fff;padding:10px 18px;border-radius:0 0 var(--radius-sm) var(--radius-sm);font-size:.85rem;font-weight:600;z-index:300;transition:top .2s ease}
.skip-link:focus{top:0;color:#fff}

/* ============ TABLE WRAPPER ============ */
.table-wrapper{overflow-x:auto;-webkit-overflow-scrolling:touch;margin-bottom:16px}

/* ============ BACK TO TOP BUTTON ============ */
.back-to-top{position:fixed;bottom:24px;right:24px;width:44px;height:44px;background:var(--accent);color:#fff;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(20px);transition:all .3s ease;z-index:90;box-shadow:0 4px 12px rgba(88,166,255,.3)}
.back-to-top:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 6px 16px rgba(88,166,255,.4)}
.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top svg{width:20px;height:20px}

/* ============ LETTER TEMPLATE ============ */
.letter-template{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:16px;position:relative}
.letter-template h4{font-size:.95rem;font-weight:700;margin-bottom:12px}
.letter-template pre{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px;font-size:.8rem;color:var(--text-secondary);line-height:1.7;white-space:pre-wrap;font-family:'Inter',sans-serif}
.letter-template .copy-btn{position:absolute;top:16px;right:16px;padding:6px 12px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;font-size:.72rem;font-weight:600;font-family:'Inter',sans-serif;transition:var(--transition)}
.letter-template .copy-btn:hover{background:var(--accent-dark)}

/* ============ WIZARD INTERATIVO ============ */
.wizard-container{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;margin:20px 0}
.wizard-step{display:none;animation:fadeIn .4s ease}
.wizard-step.active{display:block}
.wizard-step h3{font-size:1.05rem;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.wizard-options{display:grid;gap:10px}
.wizard-option{display:flex;align-items:center;gap:12px;padding:14px 18px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);font-size:.85rem;color:var(--text-secondary)}
.wizard-option:hover{border-color:var(--accent);background:rgba(88,166,255,.06);color:var(--text-primary)}
.wizard-option.selected{border-color:var(--accent);background:rgba(88,166,255,.1);color:var(--accent);font-weight:600}
.wizard-option svg{flex-shrink:0;opacity:.7}
.wizard-nav{display:flex;justify-content:space-between;margin-top:20px;gap:12px}
.wizard-nav button{padding:10px 22px;border-radius:var(--radius-sm);font-size:.85rem;font-weight:600;font-family:'Inter',sans-serif;cursor:pointer;transition:var(--transition);border:1px solid var(--border);background:var(--bg-primary);color:var(--text-secondary)}
.wizard-nav button:hover{border-color:var(--accent);color:var(--accent)}
.wizard-nav button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.wizard-nav button.primary:hover{background:var(--accent-dark)}
.wizard-result{background:linear-gradient(135deg,rgba(88,166,255,.08),rgba(121,192,255,.04));border:1px solid rgba(88,166,255,.2);border-radius:var(--radius-sm);padding:20px;margin-top:16px}

/* ============ GANTT TIMELINE ============ */
.gantt-container{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin:20px 0;overflow-x:auto}
.gantt-header{display:grid;grid-template-columns:160px repeat(12,1fr);gap:0;margin-bottom:4px;font-size:.65rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}
.gantt-header span{text-align:center;padding:6px 2px;border-left:1px solid rgba(255,255,255,.04)}
.gantt-header span:first-child{text-align:left;border:none}
.gantt-row{display:grid;grid-template-columns:160px repeat(12,1fr);gap:0;align-items:center;min-height:36px;border-top:1px solid rgba(255,255,255,.04)}
.gantt-row .gantt-label{font-size:.78rem;font-weight:500;color:var(--text-secondary);padding:6px 8px 6px 0;white-space:nowrap}
.gantt-row .gantt-cells{display:contents}
.gantt-cell{height:28px;position:relative;border-left:1px solid rgba(255,255,255,.04)}
.gantt-bar{position:absolute;top:4px;height:20px;border-radius:4px;opacity:.85;min-width:100%}
.gantt-bar.urgent{background:var(--red)}
.gantt-bar.warning{background:var(--amber)}
.gantt-bar.info{background:var(--blue)}
.gantt-bar.success{background:var(--green)}
.gantt-bar.accent{background:var(--accent)}

/* ============ DOCUMENT MATRIX ============ */
.doc-matrix{width:100%}
.doc-matrix .check-yes{color:var(--green);font-weight:700;font-size:1.1rem}
.doc-matrix .check-no{color:var(--text-muted);font-size:1.1rem}
.doc-matrix td,.doc-matrix th{text-align:center;padding:10px 8px;font-size:.8rem}
.doc-matrix td:first-child,.doc-matrix th:first-child{text-align:left}

/* ============ SWIM LANE ============ */
.swim-lane-container{display:grid;gap:0;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;margin:20px 0}
.swim-lane-header{display:grid;gap:0}
.swim-lane-header span{padding:10px 14px;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);background:rgba(255,255,255,.02);border-bottom:2px solid var(--border);text-align:center}
.swim-lane-row{display:grid;gap:0;border-bottom:1px solid rgba(255,255,255,.04)}
.swim-lane-row:last-child{border-bottom:none}
.swim-lane-cell{padding:12px 14px;border-right:1px solid rgba(255,255,255,.04);font-size:.8rem;color:var(--text-secondary)}
.swim-lane-cell:last-child{border-right:none}
.swim-lane-cell.lane-label{font-weight:600;color:var(--text-primary);background:rgba(255,255,255,.02);font-size:.78rem}
.swim-lane-cell .task-chip{display:inline-block;padding:4px 10px;border-radius:4px;font-size:.72rem;font-weight:600;margin:2px;background:rgba(88,166,255,.12);color:var(--accent);border:1px solid rgba(88,166,255,.2)}
.swim-lane-cell .task-chip.urgent{background:rgba(239,83,80,.12);color:var(--red);border-color:rgba(239,83,80,.2)}
.swim-lane-cell .task-chip.warning{background:rgba(255,167,38,.12);color:var(--amber);border-color:rgba(255,167,38,.2)}
.swim-lane-cell .task-chip.success{background:rgba(102,187,106,.12);color:var(--green);border-color:rgba(102,187,106,.2)}

/* ============ LETTER GENERATOR ============ */
.letter-generator{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;margin:20px 0}
.letter-generator h3{font-size:1.05rem;font-weight:700;margin-bottom:16px}
.letter-field{margin-bottom:14px}
.letter-field label{display:block;font-size:.78rem;color:var(--text-secondary);margin-bottom:5px;font-weight:600}
.letter-field input,.letter-field select{width:100%;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;color:var(--text-primary);font-size:.88rem;font-family:'Inter',sans-serif;transition:var(--transition)}
.letter-field input:focus,.letter-field select:focus{outline:none;border-color:var(--accent)}
.letter-preview{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:24px;margin-top:16px;font-size:.85rem;line-height:1.8;color:var(--text-secondary);white-space:pre-wrap;font-family:'Inter',sans-serif;min-height:200px}
.letter-actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.letter-actions button{padding:10px 20px;border-radius:var(--radius-sm);font-size:.85rem;font-weight:600;font-family:'Inter',sans-serif;cursor:pointer;transition:var(--transition);border:1px solid var(--border);background:var(--bg-primary);color:var(--text-secondary)}
.letter-actions button:hover{border-color:var(--accent);color:var(--accent)}
.letter-actions button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.letter-actions button.primary:hover{background:var(--accent-dark)}

/* ============ QUIZ / QUESTIONNAIRE ============ */
.quiz-container{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;margin:20px 0}
.quiz-progress{display:flex;gap:6px;margin-bottom:20px}
.quiz-progress-dot{width:100%;height:4px;border-radius:2px;background:var(--border);transition:background .3s}
.quiz-progress-dot.active{background:var(--accent)}
.quiz-progress-dot.done{background:var(--green)}
.quiz-question{display:none;animation:fadeIn .4s ease}
.quiz-question.active{display:block}
.quiz-question h3{font-size:1.05rem;font-weight:700;margin-bottom:6px}
.quiz-question p{font-size:.85rem;color:var(--text-secondary);margin-bottom:16px}
.quiz-options{display:grid;gap:10px}
.quiz-option{display:flex;align-items:center;gap:12px;padding:14px 18px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);font-size:.85rem;color:var(--text-secondary)}
.quiz-option:hover{border-color:var(--accent);background:rgba(88,166,255,.06);color:var(--text-primary)}
.quiz-option.selected{border-color:var(--accent);background:rgba(88,166,255,.1);color:var(--accent);font-weight:600}
.quiz-result{display:none;animation:fadeIn .4s ease}
.quiz-result.active{display:block}
.quiz-result h3{font-size:1.1rem;font-weight:700;margin-bottom:16px}
.quiz-result-item{display:flex;align-items:flex-start;gap:12px;padding:12px 16px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:8px;font-size:.85rem;color:var(--text-secondary);transition:var(--transition)}
.quiz-result-item.applies{border-color:var(--accent);background:rgba(88,166,255,.06)}
.quiz-result-item.not-applies{opacity:.5}
.quiz-result-item .urgency{font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;padding:2px 8px;border-radius:4px;white-space:nowrap}
.quiz-result-item .urgency.urgent{background:rgba(239,83,80,.15);color:var(--red)}
.quiz-result-item .urgency.soon{background:rgba(255,167,38,.15);color:var(--amber)}
.quiz-result-item .urgency.later{background:rgba(66,165,245,.15);color:var(--blue)}

/* ============ QUIZ NAV ============ */
.quiz-nav{display:flex;justify-content:space-between;align-items:center;margin-top:20px;gap:12px}
.quiz-btn{padding:10px 22px;border-radius:var(--radius-sm);font-size:.85rem;font-weight:600;font-family:'Inter',sans-serif;cursor:pointer;transition:var(--transition);border:1px solid var(--border);background:var(--bg-primary);color:var(--text-secondary);display:inline-flex;align-items:center;gap:6px}
.quiz-btn:hover{border-color:var(--accent);color:var(--accent)}
.quiz-btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.quiz-btn.primary:hover{background:var(--accent-dark);border-color:var(--accent-dark)}
.quiz-btn:disabled{opacity:.4;cursor:not-allowed}
.quiz-btn:disabled:hover{border-color:var(--border);color:var(--text-secondary)}

/* ============ FORM VALIDATION ============ */
.validation-msg{background:rgba(239,83,80,.08);border:1px solid rgba(239,83,80,.3);border-radius:var(--radius-sm);padding:12px 16px;margin-top:12px;font-size:.82rem;color:var(--red);line-height:1.6;animation:fadeIn .3s ease}
.validation-msg ul{margin:6px 0 0;padding-left:18px}
.validation-msg li{margin-bottom:2px}

/* ============ GLOSSARY ============ */
.glossary-nav{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:20px;padding:12px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm)}
.glossary-nav a{display:inline-block;padding:4px 10px;border-radius:6px;font-size:.82rem;font-weight:600;color:var(--text-secondary);transition:var(--transition)}
.glossary-nav a:hover{background:rgba(88,166,255,.1);color:var(--accent)}
.glossary-list{list-style:none;padding:0}
.glossary-term{font-size:1rem;font-weight:700;color:var(--text-primary);padding:16px 0 4px;border-bottom:1px solid var(--border);scroll-margin-top:80px}
.glossary-def{font-size:.85rem;color:var(--text-secondary);line-height:1.7;padding:8px 0 16px}

/* ============ DISTRICT MAP / DIRECTORY ============ */
.district-filter{margin-bottom:20px}
.district-filter input{width:100%;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;color:var(--text-primary);font-size:.88rem;font-family:'Inter',sans-serif;transition:var(--transition)}
.district-filter input:focus{outline:none;border-color:var(--accent)}
.district-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:12px;transition:var(--transition)}
.district-card:hover{border-color:rgba(88,166,255,.2)}
.district-card h3{font-size:.95rem;font-weight:700;margin-bottom:10px;color:var(--accent)}
.district-card ul{list-style:none;padding:0}
.district-card li{font-size:.82rem;color:var(--text-secondary);padding:4px 0;display:flex;align-items:flex-start;gap:6px}
.district-card li::before{content:'\2022';color:var(--accent);font-weight:700;flex-shrink:0}

/* ============ DONUT CHART ============ */
.donut-chart{display:flex;align-items:center;justify-content:center;gap:32px;flex-wrap:wrap;padding:20px 0}
.donut-chart svg{flex-shrink:0}
.donut-legend{display:flex;flex-direction:column;gap:8px}
.donut-legend-item{display:flex;align-items:center;gap:8px;font-size:.82rem;color:var(--text-secondary)}
.donut-legend-item .swatch{width:12px;height:12px;border-radius:3px;flex-shrink:0}
.donut-label{font-size:.78rem;color:var(--text-muted);text-align:center;margin-top:8px}

/* ============ RESPONSIVE ============ */
@media(max-width:900px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .overlay.open{display:block}
  .menu-toggle{display:flex}
  .main{margin-left:0;padding:24px 16px;padding-top:65px}
  .stat-value{font-size:1.6rem!important}
  .card-grid-2,.card-grid-3,.card-grid-4{grid-template-columns:1fr}
  .water-input-group{flex-direction:column}
  .contact-card{flex-direction:column;text-align:center}
  .contact-number{min-width:auto}
  .contacts-grid{grid-template-columns:1fr}
  .data-table{font-size:.75rem}
  .data-table th,.data-table td{padding:8px 10px}
  .btn-print{position:static;margin-top:12px}
  .share-buttons{position:static;margin-top:8px}
  .hero{padding:28px 20px}
}
@media(max-width:480px){
  .page-header h1,.page-header h2{font-size:1.4rem}
  .calc-result .total-watts{font-size:2rem}
}
@media(max-width:900px){.back-to-top{bottom:16px;right:16px;width:40px;height:40px}}