/* =========================================================
   GCD — Grupo Colombiano de Desarrollo
   Sitio web corporativo · v2.0 · Paleta Azul Claro + Inter
   ========================================================= */

:root{
  --bg:            #f7f9fc;
  --bg-2:          #eef2f8;
  --panel:         #ffffff;
  --panel-2:       #f7f9fc;
  --line:          #dbe2ec;
  --line-strong:   #c3cddc;
  --text:          #0d1b2a;
  --text-2:        #33445a;
  --text-dim:      #5c6b7f;
  --accent:        #005ca8;
  --accent-hover:  #004a8a;
  --accent-tint:   rgba(0,92,168,0.10);
  --accent-tint-2: rgba(0,92,168,0.18);
  --amber:         #d97706;
  --amber-tint:    rgba(217,119,6,0.10);
  --success:       #059669;
  --danger:        #dc2626;
  --radius:        12px;
  --shadow-sm:     0 1px 2px rgba(13,27,42,0.04);
  --shadow-md:     0 4px 12px rgba(13,27,42,0.06);
  --shadow-lg:     0 12px 32px rgba(13,27,42,0.08);
  --shadow-xl:     0 24px 60px rgba(13,27,42,0.10);
  --max:           1200px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth; scroll-padding-top:80px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

h1,h2,h3,h4,h5{font-family:'Inter',sans-serif; letter-spacing:-0.015em; font-weight:600;}
.mono{font-family:'JetBrains Mono',monospace;}
a{color:inherit; text-decoration:none;}
img,svg{display:block; max-width:100%;}
::selection{background:var(--accent-tint-2); color:var(--accent);}

.wrap{max-width:var(--max); margin:0 auto; padding:0 24px;}
.section{padding:96px 0; position:relative;}
.section-alt{background:var(--bg-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
@media(max-width:720px){ .section{padding:64px 0;} }

/* ================= HEADER ================= */
header{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,0.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-row{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 24px; max-width:var(--max); margin:0 auto; gap:24px;
}
.logo{display:flex; align-items:center; gap:12px; font-weight:700;}
.logo-mark{
  width:12px; height:12px; border-radius:3px;
  background:var(--accent);
  box-shadow: 0 0 0 4px var(--accent-tint);
}
.logo-text{font-size:20px; line-height:1; display:flex; flex-direction:column; gap:2px; color:var(--text);}
.logo-sub{
  font-family:'JetBrains Mono',monospace; font-size:9.5px;
  color:var(--text-dim); text-transform:uppercase; letter-spacing:0.1em; font-weight:400;
}

.main-nav{display:flex; align-items:center; gap:28px;}
.main-nav > a, .nav-drop-trigger{
  font-size:14px; color:var(--text-2); font-weight:500;
  transition:color .2s ease; position:relative;
  padding:6px 0; background:transparent; border:none; cursor:pointer;
  font-family:inherit; display:inline-flex; align-items:center; gap:6px;
}
.main-nav > a:hover, .nav-drop-trigger:hover{color:var(--accent);}
.main-nav > a::after, .nav-drop-trigger::after{
  content:""; position:absolute; left:0; right:0; bottom:-6px; height:2px;
  background:var(--accent); transform:scaleX(0); transform-origin:right;
  transition:transform .3s ease;
}
.main-nav > a:hover::after, .nav-drop-trigger:hover::after,
.nav-drop-wrap:hover .nav-drop-trigger::after{transform:scaleX(1); transform-origin:left;}

.chev{width:12px; height:12px; transition:transform .25s ease;}
.nav-drop-wrap:hover .chev{transform:rotate(180deg);}

/* Dropdown mega-menu */
.nav-drop-wrap{position:relative;}
.dropdown{
  position:absolute; top:calc(100% + 14px); left:50%;
  transform:translateX(-50%) translateY(-6px);
  background:var(--panel); border:1px solid var(--line);
  border-radius:14px; padding:14px; width:560px;
  opacity:0; pointer-events:none; transition: all .22s ease;
  z-index:100; display:grid; grid-template-columns:1fr 1fr; gap:4px;
  box-shadow: var(--shadow-xl);
}
.dropdown::before{
  content:""; position:absolute; top:-10px; left:0; right:0; height:10px;
}
.nav-drop-wrap:hover .dropdown,
.dropdown:hover,
.nav-drop-wrap:focus-within .dropdown{
  opacity:1; pointer-events:auto;
  transform:translateX(-50%) translateY(0);
}
.drop-item{
  padding:12px 14px; border-radius:10px; display:flex; gap:12px;
  align-items:flex-start; transition: background .15s ease;
}
.drop-item:hover{background:var(--bg-2);}
.drop-icon{
  width:36px; height:36px; border-radius:9px;
  background:var(--accent-tint); color:var(--accent);
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}
.drop-icon svg{width:20px; height:20px;}
.drop-body{display:flex; flex-direction:column; gap:2px;}
.drop-title{font-size:14px; font-weight:600; color:var(--text); line-height:1.3;}
.drop-desc{font-size:12px; color:var(--text-dim); line-height:1.4;}

.nav-cta{
  font-size:13px; font-weight:500; letter-spacing:0.01em;
  background:var(--accent); color:#fff;
  padding:10px 20px; border-radius:8px; white-space:nowrap;
  transition:background .2s ease, transform .2s ease, box-shadow .2s ease;
  box-shadow: 0 4px 12px rgba(0,92,168,0.20);
}
.nav-cta:hover{background:var(--accent-hover); transform:translateY(-1px); box-shadow: 0 6px 20px rgba(0,92,168,0.30);}

.nav-toggle{
  display:none; width:38px; height:38px;
  background:transparent; border:1px solid var(--line); border-radius:8px;
  flex-direction:column; align-items:center; justify-content:center; gap:4px; cursor:pointer;
}
.nav-toggle span{width:18px; height:1.8px; background:var(--text-2); transition:transform .2s ease;}
.nav-toggle.open span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* Menú móvil: escondido por defecto en cualquier ancho; solo se muestra bajo 900px cuando el JS quita el atributo [hidden]. El selector [hidden] tiene prioridad para evitar filtrarse a desktop. */
.mobile-nav{display:none;}
.mobile-nav a{padding:14px 24px; color:var(--text-2); border-bottom:1px solid var(--line); font-size:15px; font-weight:500;}
.mobile-nav a:last-child{border-bottom:none;}
.mobile-services{border-bottom:1px solid var(--line);}
.mobile-services summary{padding:14px 24px; color:var(--text-2); font-size:15px; font-weight:500; cursor:pointer; list-style:none; display:flex; justify-content:space-between; align-items:center;}
.mobile-services summary::-webkit-details-marker{display:none;}
.mobile-services summary::after{content:"+"; font-size:20px; color:var(--text-dim); transition:transform .2s ease;}
.mobile-services[open] summary::after{transform:rotate(45deg);}
.mobile-services a{padding:12px 40px; font-size:14px; color:var(--text-dim); border:none; background:var(--bg-2);}
.nav-cta-mobile{color:#fff !important; background:var(--accent); font-weight:600 !important; margin:12px 24px; border-radius:8px; text-align:center;}

@media(max-width:900px){
  .main-nav, .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .mobile-nav:not([hidden]){
    display:flex; flex-direction:column;
    border-top:1px solid var(--line); padding:12px 0; background:var(--panel);
  }
}

/* ================= HERO ================= */
.hero{
  position:relative; overflow:hidden;
  min-height:88vh; display:flex; align-items:center;
  background:
    radial-gradient(1200px 600px at 15% -10%, var(--accent-tint), transparent 60%),
    radial-gradient(900px 500px at 95% 100%, var(--amber-tint), transparent 60%),
    var(--bg);
}
.hero-grid{
  position:absolute; inset:0; z-index:1;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size:64px 64px;
  opacity:0.4;
  mask-image:linear-gradient(to bottom, black 10%, transparent 85%);
}
.hero-orbit{position:absolute; inset:0; z-index:1; pointer-events:none;}
.hero-orbit span{
  position:absolute; border-radius:50%; border:1px solid var(--line-strong); opacity:0.3;
  animation:orbit 40s linear infinite;
}
.hero-orbit span:nth-child(1){width:600px; height:600px; right:-200px; top:-100px;}
.hero-orbit span:nth-child(2){width:900px; height:900px; right:-350px; top:-250px; animation-duration:80s; animation-direction:reverse;}
.hero-orbit span:nth-child(3){width:1200px; height:1200px; right:-500px; top:-400px; animation-duration:120s;}
@keyframes orbit{ from{transform:rotate(0);} to{transform:rotate(360deg);} }

.hero-inner{position:relative; z-index:2; width:100%; padding:120px 0 80px;}
.eyebrow{
  font-size:12.5px; font-weight:500; letter-spacing:0.06em;
  text-transform:uppercase; color:var(--accent);
  display:inline-flex; align-items:center; gap:10px; margin-bottom:22px;
  padding:6px 12px; border:1px solid var(--accent-tint-2); border-radius:999px;
  background:var(--accent-tint);
}
.eyebrow span{color:var(--text); font-weight:600;}

.hero-title{
  font-size:clamp(38px, 6.5vw, 68px); font-weight:600; line-height:1.05;
  margin:0 0 22px; max-width:900px; color:var(--text);
}
.hero-title em{
  font-style:normal; color:var(--accent); position:relative;
  display:inline-block;
  transition: opacity .5s ease;
}
.hero-title em::after{
  content:""; position:absolute; left:0; right:0; bottom:2px; height:12px;
  background:var(--accent-tint);
  z-index:-1; border-radius:3px;
}
.hero-lede{
  font-size:19px; color:var(--text-dim); max-width:640px; margin:0 0 40px;
}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap; margin-bottom:56px;}

.btn{
  font-family:inherit; font-weight:500; font-size:15px;
  padding:14px 26px; border-radius:10px; display:inline-flex; align-items:center; gap:10px;
  cursor:pointer; border:1px solid transparent;
  transition:transform .2s ease, background .2s ease, box-shadow .2s ease, border-color .2s ease, color .2s ease;
}
.btn-primary{background:var(--accent); color:#fff; box-shadow: 0 6px 20px rgba(0,92,168,0.25);}
.btn-primary:hover{background:var(--accent-hover); transform:translateY(-2px); box-shadow: 0 10px 28px rgba(0,92,168,0.35);}
.btn-ghost{border-color:var(--line-strong); color:var(--text); background:var(--panel);}
.btn-ghost:hover{border-color:var(--accent); color:var(--accent); background:var(--accent-tint);}
.btn-block{width:100%; justify-content:center;}

.signal{width:100%; max-width:720px; height:60px; margin-bottom:36px;}
.signal path{
  fill:none; stroke:var(--accent); stroke-width:1.8;
  stroke-dasharray:8 4000;
  animation:draw 4s linear infinite;
  opacity:0.7;
}
@keyframes draw{
  0%{stroke-dashoffset:0;}
  100%{stroke-dashoffset:-1400;}
}

.hero-stats{
  display:grid; grid-template-columns:repeat(4, 1fr); gap:24px;
  padding-top:32px; border-top:1px solid var(--line); max-width:800px;
}
@media(max-width:720px){ .hero-stats{grid-template-columns:repeat(2,1fr);} }
.stat .num{font-size:32px; font-weight:700; color:var(--accent); letter-spacing:-0.02em;}
.stat .lbl{font-size:11.5px; color:var(--text-dim); text-transform:uppercase; letter-spacing:0.05em; margin-top:4px; font-weight:500;}

/* ================= SECTION HEADS ================= */
.sec-head{max-width:720px; margin-bottom:56px;}
.sec-eyebrow{
  font-size:12px; color:var(--accent); font-weight:500;
  text-transform:uppercase; letter-spacing:0.08em; margin-bottom:14px;
}
.sec-head h2{font-size:clamp(28px,3.8vw,42px); margin:0 0 16px; font-weight:600; line-height:1.15; color:var(--text);}
.sec-head p{color:var(--text-dim); font-size:17px; margin:0;}

/* ================= SERVICE GRID ================= */
.service-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:20px;
}
@media(max-width:900px){ .service-grid{grid-template-columns:repeat(2,1fr);} }
@media(max-width:600px){ .service-grid{grid-template-columns:1fr;} }

.service-card{
  position:relative; background:var(--panel); border:1px solid var(--line);
  border-radius:14px; padding:32px; display:flex; flex-direction:column; gap:14px;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  overflow:hidden; color:var(--text);
}
.service-card:hover{transform:translateY(-4px); border-color:var(--accent); box-shadow:var(--shadow-lg);}
.service-card[data-color="amber"]:hover{border-color:var(--amber);}
.service-card > *{position:relative; z-index:1;}

.service-icon{
  width:52px; height:52px; border-radius:10px;
  background:var(--accent-tint);
  color:var(--accent);
  display:flex; align-items:center; justify-content:center;
  border:1px solid var(--accent-tint-2);
}
.service-icon svg{width:26px; height:26px;}
[data-color="amber"] .service-icon{background:var(--amber-tint); color:var(--amber); border-color:rgba(217,119,6,0.25);}

.service-badge{
  position:absolute; top:20px; right:20px;
  font-size:10px; padding:4px 8px; border-radius:5px;
  background:var(--amber); color:#fff; text-transform:uppercase; letter-spacing:0.05em; font-weight:600;
  z-index:2;
}

.service-card h3{margin:0; font-size:20px; font-weight:600; color:var(--text);}
.service-card p{margin:0; color:var(--text-dim); font-size:14.5px; flex-grow:1;}
.service-cta{
  font-size:12px; color:var(--accent); font-weight:500;
  text-transform:uppercase; letter-spacing:0.04em; margin-top:8px;
  transition: transform .2s ease;
}
[data-color="amber"] .service-cta{color:var(--amber);}
.service-card:hover .service-cta{transform:translateX(4px);}

/* ================= EV TIERS ================= */
.ev-tiers{
  display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-bottom:64px;
}
@media(max-width:820px){ .ev-tiers{grid-template-columns:1fr;} }
.ev-tier{
  background:var(--panel); border:1px solid var(--line); border-radius:14px; padding:28px;
  display:flex; flex-direction:column; gap:12px;
  transition:transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.ev-tier:hover{transform:translateY(-4px); border-color:var(--amber); box-shadow:var(--shadow-lg);}
.ev-tier.featured{border-color:var(--amber); border-width:2px; padding:27px; box-shadow: var(--shadow-lg);}
.ev-tier-tag{
  font-size:11px; color:var(--amber); font-weight:600;
  text-transform:uppercase; letter-spacing:0.06em;
}
.ev-tier-power{
  font-size:36px; font-weight:700; color:var(--text);
  line-height:1; letter-spacing:-0.02em;
}
.ev-tier h4{margin:0; font-size:18px; font-weight:600; color:var(--text);}
.ev-tier p{margin:0; color:var(--text-dim); font-size:14px;}
.ev-tier ul{list-style:none; padding:0; margin:12px 0 0; display:flex; flex-direction:column; gap:8px; border-top:1px solid var(--line); padding-top:16px;}
.ev-tier ul li{font-size:13.5px; color:var(--text-2); padding-left:18px; position:relative;}
.ev-tier ul li::before{content:"✓"; position:absolute; left:0; top:0; color:var(--amber); font-weight:700;}

.ev-process{margin-bottom:64px;}
.ev-process h3{font-size:24px; margin:0 0 24px; color:var(--text);}
.steps{display:flex; flex-direction:column;}
.step{
  display:grid; grid-template-columns:64px 1fr; gap:22px; padding:24px 0; border-top:1px solid var(--line);
}
.step:last-child{border-bottom:1px solid var(--line);}
.step .n{color:var(--amber); font-size:15px; padding-top:2px; font-weight:600;}
.step h4{margin:0 0 8px; font-size:17px; font-weight:600; color:var(--text);}
.step p{margin:0; color:var(--text-dim); font-size:14.5px; max-width:640px;}

/* ================= CALCULATOR ================= */
.calc-panel{
  background:var(--panel); border:1px solid var(--line); border-radius:16px; overflow:hidden;
  display:grid; grid-template-columns:1.1fr 1fr; box-shadow: var(--shadow-lg);
}
@media(max-width:820px){ .calc-panel{grid-template-columns:1fr;} }
.calc-form{padding:36px; border-right:1px solid var(--line);}
@media(max-width:820px){ .calc-form{border-right:none; border-bottom:1px solid var(--line);} }
.calc-form-head{margin-bottom:28px;}
.calc-form-head h3{margin:0 0 8px; font-size:24px; color:var(--text);}
.calc-form-head p{margin:0; color:var(--text-dim); font-size:14px;}
.calc-note-top{margin-top:8px !important;}

.calc-result{
  padding:36px; display:flex; flex-direction:column; justify-content:center;
  background:linear-gradient(180deg, var(--bg-2), var(--panel));
  gap:8px;
}
.field{margin-bottom:20px;}
.field:last-child{margin-bottom:0;}
.field label{
  display:block; font-size:12px; font-weight:500;
  text-transform:uppercase; letter-spacing:0.04em; color:var(--text-dim); margin-bottom:8px;
}
.field input, .field select, .field textarea{
  width:100%; background:var(--panel); border:1px solid var(--line); border-radius:8px;
  color:var(--text); padding:12px 14px; font-family:'Inter',sans-serif; font-size:14.5px;
  outline:none; transition:border-color .2s ease, box-shadow .2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus{border-color:var(--accent); box-shadow: 0 0 0 3px var(--accent-tint);}
.field-row{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
@media(max-width:520px){ .field-row{grid-template-columns:1fr;} }
.checkbox-row{display:flex; align-items:center; gap:10px; margin-top:8px;}
.checkbox-row input{width:16px; height:16px; accent-color:var(--amber);}
.checkbox-row label{margin:0; font-family:'Inter',sans-serif; text-transform:none; letter-spacing:0; font-size:14px; color:var(--text);}

.result-label{font-size:12px; color:var(--text-dim); text-transform:uppercase; letter-spacing:0.05em; margin-bottom:10px; font-weight:500;}
.result-value{font-size:44px; font-weight:700; color:var(--amber); margin-bottom:8px; letter-spacing:-0.02em; line-height:1;}
.result-note{font-size:13px; color:var(--text-dim); margin-bottom:24px;}
.result-breakdown{border-top:1px solid var(--line); padding-top:16px; font-family:'JetBrains Mono',monospace; font-size:12.5px; margin-bottom:24px;}
.result-breakdown div{display:flex; justify-content:space-between; padding:5px 0; color:var(--text-dim); gap:8px;}
.result-breakdown div span:last-child{color:var(--text); text-align:right;}
.calc-cta{margin-top:8px;}

/* ================= SPLIT PANEL (Solar) ================= */
.split-panel{display:grid; grid-template-columns:1fr 1fr; gap:32px;}
@media(max-width:820px){ .split-panel{grid-template-columns:1fr;} }
.split-left h3{font-size:28px; margin:0 0 8px; color:var(--text);}
.lead-note{color:var(--text-dim); margin:0 0 24px; font-size:16px;}
.check-list{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:12px;}
.check-list li{
  padding-left:32px; position:relative; color:var(--text); font-size:15px;
}
.check-list li::before{
  content:""; position:absolute; left:0; top:6px; width:18px; height:18px;
  background:var(--amber-tint);
  border-radius:50%; border:1px solid var(--amber);
}
.check-list li::after{
  content:""; position:absolute; left:5px; top:11px; width:8px; height:4px;
  border-left:1.5px solid var(--amber); border-bottom:1.5px solid var(--amber); transform:rotate(-45deg);
}

.highlight-box{
  margin-top:32px; padding:24px; background:var(--panel);
  border:1px solid var(--line); border-radius:12px;
  display:flex; flex-direction:column; gap:4px; box-shadow:var(--shadow-sm);
}
.highlight-num{font-size:16px; color:var(--text-dim);}
.highlight-num span{font-size:32px; color:var(--amber); font-weight:700; margin-left:8px;}
.highlight-txt{color:var(--text-dim); font-size:13.5px;}

.viability-card{
  background:var(--panel); border:1px solid var(--line); border-radius:14px; padding:32px;
  box-shadow: var(--shadow-sm);
}
.viability-card h4{margin:0 0 20px; font-size:18px; color:var(--text);}
.viab-item{
  display:grid; grid-template-columns:36px 1fr; gap:14px; padding:14px 0;
  border-top:1px solid var(--line);
}
.viab-item:first-of-type{border-top:none;}
.viab-item span{
  font-size:13px; color:var(--amber); padding-top:3px; font-weight:600;
}
.viab-item b{color:var(--text); font-size:14.5px;}
.viab-item p{margin:4px 0 0; color:var(--text-dim); font-size:13.5px;}

/* ================= TABS ================= */
.tabs{
  display:flex; gap:0; border-bottom:1px solid var(--line); margin-bottom:32px;
}
.tab{
  background:transparent; border:none; color:var(--text-dim);
  padding:12px 20px; font-family:'Inter',sans-serif; font-size:14px;
  font-weight:500; letter-spacing:0.02em; cursor:pointer;
  border-bottom:2px solid transparent; margin-bottom:-1px;
  transition: color .2s ease, border-color .2s ease;
}
.tab:hover{color:var(--text);}
.tab.active{color:var(--accent); border-color:var(--accent);}
.tab-content{display:none;}
.tab-content.active{display:block; animation: fadeIn .3s ease;}
@keyframes fadeIn{ from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:none;} }

.feature-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:12px; overflow:hidden;}
@media(max-width:800px){ .feature-grid{grid-template-columns:1fr;} }
.feature{background:var(--panel); padding:24px;}
.feature h4{margin:0 0 8px; font-size:16px; font-weight:600; color:var(--text);}
.feature p{margin:0; color:var(--text-dim); font-size:14px;}

/* ================= TWO-COL ================= */
.two-col{display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center;}
.two-col.reverse .col-visual{order:-1;}
@media(max-width:820px){ .two-col, .two-col.reverse{grid-template-columns:1fr;} .two-col.reverse .col-visual{order:0;} }
.col-info h2{font-size:34px; margin:14px 0 16px; font-weight:600; color:var(--text);}
.col-info p{color:var(--text-dim); margin-bottom:24px;}

.visual-card{
  background: var(--panel); border:1px solid var(--line); border-radius:16px;
  padding:48px; display:flex; flex-direction:column; align-items:center; gap:24px;
  position:relative; overflow:hidden; box-shadow: var(--shadow-md);
}
.visual-card::before{
  content:""; position:absolute; inset:0;
  background: radial-gradient(400px 200px at 50% 0%, var(--accent-tint), transparent);
}
.visual-icon-lg{
  width:120px; height:120px; color:var(--accent); position:relative; z-index:1;
}
.visual-caption{
  font-size:12px; color:var(--text-dim); text-transform:uppercase; letter-spacing:0.06em;
  text-align:center; position:relative; z-index:1; font-weight:500;
}

/* ================= OBRA GRID ================= */
.obra-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:20px;}
@media(max-width:800px){ .obra-grid{grid-template-columns:1fr;} }
.obra-item{
  padding:32px; background:var(--panel); border:1px solid var(--line); border-radius:14px;
  transition:transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.obra-item:hover{transform:translateY(-4px); border-color:var(--accent); box-shadow: var(--shadow-lg);}
.obra-num{color:var(--accent); font-size:14px; margin-bottom:16px; font-weight:600;}
.obra-item h4{margin:0 0 12px; font-size:20px; font-weight:600; color:var(--text);}
.obra-item p{margin:0; color:var(--text-dim); font-size:14.5px;}

/* ================= TIMELINE ================= */
.timeline{
  display:grid; grid-template-columns:repeat(4,1fr); gap:24px; margin-bottom:80px;
  position:relative; padding-top:24px;
}
.timeline::before{
  content:""; position:absolute; top:34px; left:0; right:0; height:2px;
  background:linear-gradient(90deg, transparent, var(--accent), var(--accent), transparent);
  opacity:0.4;
}
@media(max-width:820px){ .timeline{grid-template-columns:1fr;} .timeline::before{left:20px; right:auto; top:0; bottom:0; width:2px; height:auto;} }
.tl-item{position:relative; padding-top:32px;}
.tl-item::before{
  content:""; position:absolute; top:29px; left:0; width:11px; height:11px;
  border-radius:50%; background:var(--accent); box-shadow:0 0 0 4px var(--accent-tint);
}
@media(max-width:820px){ .tl-item{padding-left:40px; padding-top:0;} .tl-item::before{left:15px; top:8px;} }
.tl-year{font-size:32px; font-weight:700; color:var(--accent); letter-spacing:-0.02em;}
.tl-tag{
  font-size:11px; color:var(--text-dim);
  text-transform:uppercase; letter-spacing:0.05em; margin:4px 0 12px; font-weight:600;
}
.tl-item p{margin:0; color:var(--text-2); font-size:14.5px;}

/* ================= VALUE PROP ================= */
.value-prop h3{font-size:28px; margin:0 0 32px; text-align:center; color:var(--text);}
.value-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:20px;}
@media(max-width:820px){ .value-grid{grid-template-columns:repeat(2,1fr);} }
@media(max-width:520px){ .value-grid{grid-template-columns:1fr;} }
.value-card{
  padding:28px; background:var(--panel); border:1px solid var(--line); border-radius:12px;
  text-align:center; transition: box-shadow .3s ease, transform .3s ease;
}
.value-card:hover{box-shadow: var(--shadow-md); transform: translateY(-2px);}
.value-icon{
  width:56px; height:56px; margin:0 auto 16px;
  background:var(--accent-tint);
  color:var(--accent); border-radius:12px;
  display:flex; align-items:center; justify-content:center; border:1px solid var(--accent-tint-2);
}
.value-icon svg{width:28px; height:28px;}
.value-card h4{margin:0 0 8px; font-size:16px; color:var(--text); font-weight:600;}
.value-card p{margin:0; color:var(--text-dim); font-size:13.5px;}

/* ================= CONTACT ================= */
.contact-panel{
  background:var(--panel); border:1px solid var(--line); border-radius:20px;
  padding:48px; display:grid; grid-template-columns:0.9fr 1.1fr; gap:48px;
  box-shadow: var(--shadow-lg);
}
@media(max-width:820px){ .contact-panel{grid-template-columns:1fr; padding:32px; gap:32px;} }
.contact-info .badge{
  display:inline-block; font-size:11px; font-weight:600;
  padding:5px 10px; background:var(--accent-tint); color:var(--accent);
  border-radius:6px; text-transform:uppercase; letter-spacing:0.05em; margin-bottom:16px;
}
.contact-info h2{margin:0 0 12px; font-size:32px; color:var(--text);}
.contact-info > p{color:var(--text-dim); margin-bottom:32px;}
.contact-list{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:20px;}
.contact-list li{border-top:1px solid var(--line); padding-top:16px;}
.contact-list li:first-child{border-top:none; padding-top:0;}
.ci-lbl{
  font-size:11px; color:var(--text-dim); font-weight:600;
  text-transform:uppercase; letter-spacing:0.05em; margin-bottom:6px;
}
.ci-val{font-size:14.5px; color:var(--text);}
.ci-val a{color:var(--accent); font-weight:500;}
.ci-val a:hover{text-decoration:underline;}

.contact-form{display:flex; flex-direction:column; gap:16px;}
.contact-form .field-row{margin-bottom:0;}
.form-note{font-size:12px; color:var(--text-dim); margin:8px 0 0; text-align:center;}
#contactMsg{
  margin-top:12px; font-size:13.5px; color:var(--success); text-align:center;
  padding:12px; background:rgba(5,150,105,0.08);
  border:1px solid rgba(5,150,105,0.20); border-radius:8px;
}

/* ================= FOOTER ================= */
footer{
  border-top:1px solid var(--line); padding:64px 0 24px;
  background:var(--panel);
}
.footer-grid{
  display:grid; grid-template-columns:1.5fr 1fr 1fr 1.2fr; gap:32px; margin-bottom:40px;
}
@media(max-width:820px){ .footer-grid{grid-template-columns:1fr 1fr;} }
@media(max-width:520px){ .footer-grid{grid-template-columns:1fr;} }
.footer-tag{color:var(--text-dim); font-size:14px; margin-top:16px; max-width:280px;}
footer h5{
  font-size:11px; color:var(--text-dim); font-weight:600;
  text-transform:uppercase; letter-spacing:0.08em; margin:0 0 16px;
}
footer a, .footer-addr{
  display:block; color:var(--text-dim); font-size:14px; padding:4px 0;
  transition: color .2s ease;
}
footer a:hover{color:var(--accent);}
.footer-bottom{
  padding-top:24px; border-top:1px solid var(--line);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  color:var(--text-dim); font-size:12.5px;
}

/* ================= WHATSAPP FLOAT ================= */
.wa-float{
  position:fixed; bottom:24px; right:24px; z-index:100;
  width:56px; height:56px; border-radius:50%;
  background:#25d366; color:#fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  transition:transform .2s ease;
}
.wa-float:hover{transform:scale(1.08);}
.wa-float::before{
  content:""; position:absolute; inset:-4px; border-radius:50%;
  border:2px solid #25d366; opacity:0;
  animation: pulse 2s ease-out infinite;
}
@keyframes pulse{
  0%{transform:scale(0.9); opacity:0.7;}
  100%{transform:scale(1.4); opacity:0;}
}

/* ================= REVEAL ON SCROLL ================= */
.reveal{opacity:0; transform:translateY(20px); transition:opacity .6s ease, transform .6s ease;}
.reveal.visible{opacity:1; transform:none;}

/* ================= UTIL ================= */
@media(max-width:520px){
  .hero-title{font-size:36px;}
  .hero-lede{font-size:16px;}
  .sec-head h2{font-size:26px;}
  .result-value{font-size:32px;}
  .dropdown{width:calc(100vw - 32px); left:16px; transform:translateX(0) translateY(-6px); grid-template-columns:1fr;}
  .nav-drop-wrap:hover .dropdown{transform:translateX(0) translateY(0);}
}