/*
Theme Name: LUXSOL Hello Child
Theme URI: https://luxsol.com.co
Description: Child theme de Hello Elementor para LUXSOL S.A.S. – Energía Solar Fotovoltaica
Author: LUXSOL S.A.S.
Template: hello-elementor
Version: 1.0.0
Text Domain: luxsol-hello-child
*/

/* ── Reset & base ────────────────────────────────────────────────── */
:root {
  --teal: #3A8795;
  --teal-light: #EBF5F7;
  --green: #6A9448;
  --gold: #D4A800;
  --gold-bg: #FFF8D6;
  --dark-green: #4C6A34;
  --bg: #F2F5F4;
  --bg-2: #FFFFFF;
  --bg-card: #FFFFFF;
  --nav-solid: rgba(255,255,255,0.97);
  --nav-shadow: 0 1px 0 rgba(0,0,0,0.08);
  --menu-bg: #FFFFFF;
  --text: #1A2633;
  --text-2: #3C4E5C;
  --text-muted: #6A7E8C;
  --text-p: #4A5C6A;
  --border: rgba(0,0,0,0.08);
  --card-shadow: 0 2px 16px rgba(0,0,0,0.07);
  --card-hover: 0 8px 32px rgba(0,0,0,0.12);
  --hero-overlay-start: rgba(15,25,35,0.50);
  --hero-overlay-mid: rgba(15,25,35,0.35);
  --hero-overlay-end: rgba(15,25,35,0.88);
  --project-overlay1: rgba(10,20,30,0.88);
  --project-overlay2: rgba(10,20,30,0.10);
  --footer-bg: #1A2633;
  --footer-text: rgba(255,255,255,0.45);
  --footer-link: rgba(255,255,255,0.60);
  --footer-sep: rgba(255,255,255,0.08);
  --label-color: var(--gold);
  --icon-bg: var(--teal-light);
  --tag-bg: var(--teal-light);
  --tag-color: var(--teal);
  --valor-bg: #F7FAF9;
  --valor-border: rgba(0,0,0,0.07);
  --valor-hover-bg: var(--teal-light);
  --valor-hover-border: rgba(58,135,149,0.35);
  --why-bg: #FFFFFF;
  --why-border: rgba(0,0,0,0.07);
  --why-hover: var(--teal-light);
  --why-hover-border: rgba(58,135,149,0.30);
  --nav-h: 72px;
  --radius: 12px;
  --transition: 0.35s cubic-bezier(0.4,0,0.2,1);
}
[data-theme="dark"] {
  --teal: #4494A1;
  --teal-light: rgba(68,148,161,0.14);
  --green: #7BA654;
  --gold: #F8D347;
  --bg: #0F1923;
  --bg-2: #1A2633;
  --bg-card: #1A2633;
  --nav-solid: rgba(15,25,35,0.97);
  --nav-shadow: 0 1px 0 rgba(255,255,255,0.06);
  --menu-bg: #0F1923;
  --text: #FFFFFF;
  --text-2: rgba(255,255,255,0.85);
  --text-muted: #7A8B99;
  --text-p: rgba(255,255,255,0.72);
  --border: rgba(255,255,255,0.08);
  --card-shadow: none;
  --card-hover: 0 8px 32px rgba(0,0,0,0.35);
  --hero-overlay-start: rgba(10,20,30,0.55);
  --hero-overlay-mid: rgba(10,20,30,0.40);
  --hero-overlay-end: rgba(10,20,30,0.95);
  --label-color: #F8D347;
  --icon-bg: rgba(68,148,161,0.15);
  --tag-bg: rgba(68,148,161,0.18);
  --tag-color: #4494A1;
  --valor-bg: rgba(255,255,255,0.04);
  --valor-border: rgba(255,255,255,0.08);
  --valor-hover-bg: rgba(68,148,161,0.10);
  --valor-hover-border: rgba(68,148,161,0.35);
  --why-bg: rgba(255,255,255,0.04);
  --why-border: rgba(255,255,255,0.07);
  --why-hover: rgba(68,148,161,0.08);
  --why-hover-border: rgba(68,148,161,0.30);
  --footer-bg: #090f16;
  --footer-text: rgba(255,255,255,0.35);
  --footer-link: rgba(255,255,255,0.55);
  --footer-sep: rgba(255,255,255,0.06);
}

/* Hello Elementor overrides */
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; overflow-x: hidden; transition: background 0.4s, color 0.4s; }
.elementor-page { background: var(--bg); }
.elementor-section.elementor-section-stretched { left: 0 !important; width: 100% !important; }

*, *::before, *::after { box-sizing: border-box; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
h1,h2,h3,h4 { font-family: 'Montserrat', sans-serif; line-height: 1.2; color: var(--text); }
h1 { font-size: clamp(2rem,5vw,3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem,3.5vw,2.4rem); font-weight: 700; }
h3 { font-size: clamp(1.05rem,2vw,1.25rem); font-weight: 600; }
p { font-weight: 300; color: var(--text-p); }

.section-label { display: inline-block; font-family: 'Montserrat', sans-serif; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--label-color); margin-bottom: 0.75rem; }
.section-title { color: var(--text); margin-bottom: 1rem; }
.section-sub { color: var(--text-muted); max-width: 600px; }
.divider-line { width: 48px; height: 3px; border-radius: 2px; background: var(--gold); margin-bottom: 28px; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section--alt { background: var(--bg-2); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }

.btn { display: inline-flex; align-items: center; gap: 10px; font-family: 'Montserrat', sans-serif; font-weight: 600; font-size: 0.9rem; letter-spacing: 0.04em; padding: 14px 32px; border-radius: 4px; border: none; cursor: pointer; transition: var(--transition); }
.btn-primary { background: var(--gold); color: #1A2633; }
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.18); }
.btn-outline { background: transparent; border: 2px solid rgba(255,255,255,0.55); color: #fff; }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.10); }

.theme-toggle { width: 44px; height: 24px; border-radius: 100px; background: var(--border); border: 1px solid var(--border); cursor: pointer; position: relative; transition: background 0.3s; flex-shrink: 0; display: flex; align-items: center; padding: 2px; outline: none; }
.theme-toggle-knob { width: 18px; height: 18px; border-radius: 50%; background: var(--teal); transition: transform 0.3s cubic-bezier(0.4,0,0.2,1); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
[data-theme="dark"] .theme-toggle-knob { transform: translateX(20px); }
.theme-toggle .ico-sun { display: block; }
.theme-toggle .ico-moon { display: none; }
[data-theme="dark"] .theme-toggle .ico-sun { display: none; }
[data-theme="dark"] .theme-toggle .ico-moon { display: block; }

/* NAVBAR */
#navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 9999; height: var(--nav-h); display: flex; align-items: center; transition: background var(--transition), box-shadow var(--transition); background: transparent; }
#navbar.scrolled { background: var(--nav-solid); backdrop-filter: blur(16px); box-shadow: var(--nav-shadow); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; gap: 24px; }
.nav-logo { display: flex; align-items: center; flex-shrink: 0; }
.nav-logo-img { height: 68px; width: auto; display: block; }
#navbar:not(.scrolled) .nav-logo-img { filter: brightness(0) invert(1); }
.footer-logo-img { filter: brightness(0) invert(1); height: 56px; width: auto; display: block; margin-bottom: 14px; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-family: 'Montserrat', sans-serif; font-size: 0.80rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; transition: color 0.2s; position: relative; }
#navbar:not(.scrolled) .nav-links a { color: rgba(255,255,255,0.85); }
#navbar.scrolled .nav-links a { color: var(--text-2); }
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; right: 0; height: 2px; background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform 0.25s; }
.nav-links a:hover::after { transform: scaleX(1); }
#navbar:not(.scrolled) .nav-links a:hover { color: #fff; }
#navbar.scrolled .nav-links a:hover { color: var(--teal); }
.nav-cta { padding: 10px 22px; font-size: 0.82rem; margin-left: 4px; }
.nav-right { display: flex; align-items: center; gap: 16px; }
#navbar:not(.scrolled) .theme-toggle { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.25); }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; background: none; border: none; }
.nav-hamburger span { display: block; width: 24px; height: 2px; border-radius: 2px; transition: var(--transition); }
#navbar:not(.scrolled) .nav-hamburger span { background: #fff; }
#navbar.scrolled .nav-hamburger span { background: var(--text); }

/* MOBILE MENU */
.mobile-menu { display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0; background: var(--menu-bg); z-index: 9998; flex-direction: column; padding: 32px 28px; border-top: 2px solid var(--teal); overflow-y: auto; }
.mobile-menu.open { display: flex; }
.mobile-menu a { font-family: 'Montserrat', sans-serif; font-size: 1.1rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--text); padding: 18px 0; border-bottom: 1px solid var(--border); display: block; transition: color 0.2s; }
.mobile-menu a:hover { color: var(--teal); }
.mobile-menu a:last-of-type { border-bottom: none; }
.mobile-menu-footer { margin-top: auto; padding-top: 28px; display: flex; align-items: center; gap: 16px; }
.mobile-mode-label { font-family: 'Montserrat', sans-serif; font-size: 0.78rem; font-weight: 600; color: var(--text-muted); letter-spacing: 0.06em; }

/* HERO */
#hero { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.hero-video-wrap { position: absolute; inset: 0; z-index: 0; background-size: cover; background-position: center; }
.hero-video-placeholder { position: absolute; inset: 0; background: transparent; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 20px; }
.hero-overlay { position: absolute; inset: 0; z-index: 1; background: linear-gradient(to bottom, var(--hero-overlay-start) 0%, var(--hero-overlay-mid) 40%, rgba(10,20,30,0.70) 75%, var(--hero-overlay-end) 100%); }
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 820px; padding: 0 24px; }
.hero-badge { display: inline-flex; align-items: center; gap: 10px; background: rgba(68,148,161,0.22); border: 1px solid rgba(68,148,161,0.50); backdrop-filter: blur(8px); padding: 8px 20px; border-radius: 100px; font-size: 0.78rem; font-family: 'Montserrat', sans-serif; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: #7BD4E0; margin-bottom: 28px; }
.hero-badge-dot { width: 6px; height: 6px; border-radius: 50%; background: #7BD4E0; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.35} }
.hero-title { color: #FFFFFF !important; margin-bottom: 24px; }
.hero-title em { font-style: normal; color: #F8D347; }
.hero-sub { font-size: 1.1rem; color: rgba(255,255,255,0.78) !important; max-width: 560px; margin: 0 auto 40px; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }
.hero-scroll { position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%); z-index: 2; display: flex; flex-direction: column; align-items: center; gap: 8px; animation: bounce 2s infinite; }
.hero-scroll span { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(255,255,255,0.45); font-family: 'Montserrat', sans-serif; }
@keyframes bounce { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(6px)} }
.hero-scroll-line { width: 1px; height: 48px; background: linear-gradient(to bottom,rgba(255,255,255,0.45),transparent); }
.video-play-btn { width: 80px; height: 80px; border-radius: 50%; background: rgba(248,211,71,0.18); border: 2px solid rgba(248,211,71,0.6); display: flex; align-items: center; justify-content: center; transition: var(--transition); cursor: pointer; }
.video-play-btn:hover { background: rgba(248,211,71,0.32); transform: scale(1.08); }
.video-placeholder-text { font-family: 'Montserrat', sans-serif; font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(255,255,255,0.4); }

/* STATS */
.stats-bar { background: var(--teal); }
.stats-inner { display: grid; grid-template-columns: repeat(4,1fr); }
.stat-item { padding: 36px 24px; border-right: 1px solid rgba(255,255,255,0.20); text-align: center; }
.stat-item:last-child { border-right: none; }
.stat-number { font-family: 'Montserrat', sans-serif; font-size: 2rem; font-weight: 800; color: #fff; line-height: 1; }
.stat-number span { color: #F8D347; }
.stat-label { font-size: 0.78rem; color: rgba(255,255,255,0.78); margin-top: 6px; }

/* NOSOTROS */
.valores-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; margin-top: 32px; }
.valor-item { background: var(--valor-bg); border: 1px solid var(--valor-border); border-radius: var(--radius); padding: 20px 22px; transition: var(--transition); }
.valor-item:hover { background: var(--valor-hover-bg); border-color: var(--valor-hover-border); }
.valor-item h4 { font-family: 'Montserrat', sans-serif; font-size: 0.82rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gold); margin-bottom: 8px; }
.valor-item p { font-size: 0.88rem; color: var(--text-muted); }
.nosotros-image { position: relative; border-radius: var(--radius); overflow: hidden; }
.nosotros-image-inner { width: 100%; aspect-ratio: 4/3; background-size: cover; background-position: center; border-radius: var(--radius); overflow: hidden; }
.nosotros-badge { position: absolute; bottom: 24px; left: 24px; background: rgba(15,25,35,0.90); backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,0.12); border-radius: 10px; padding: 16px 20px; }
.nosotros-badge .nb-number { font-family: 'Montserrat', sans-serif; font-size: 1.8rem; font-weight: 800; color: #F8D347; line-height: 1; }
.nosotros-badge .nb-label { font-size: 0.76rem; color: rgba(255,255,255,0.70); }

/* POR QUÉ */
.why-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin-top: 56px; }
.why-card { background: var(--why-bg); border: 1px solid var(--why-border); border-radius: var(--radius); padding: 36px 28px; transition: var(--transition); position: relative; overflow: hidden; box-shadow: var(--card-shadow); }
.why-card::before { content:''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--teal); transform: scaleX(0); transform-origin: left; transition: transform var(--transition); }
.why-card:hover { background: var(--why-hover); border-color: var(--why-hover-border); transform: translateY(-4px); box-shadow: var(--card-hover); }
.why-card:hover::before { transform: scaleX(1); }
.why-icon { width: 52px; height: 52px; background: var(--icon-bg); border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.why-icon svg { color: var(--teal); }
.why-card h3 { margin-bottom: 12px; font-size: 1rem; }
.why-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; }

/* SERVICIOS */
.services-grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; margin-top: 56px; }
.service-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: var(--transition); box-shadow: var(--card-shadow); }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--card-hover); }
.service-thumb { width: 100%; height: 180px; display: flex; align-items: center; justify-content: center; }
.st1 { background: linear-gradient(135deg,#1a3a4a,#2a5a6a); }
.st3 { background: linear-gradient(135deg,#2d2a14,#4a4220); }
.service-thumb-icon { width: 64px; height: 64px; border-radius: 12px; background: rgba(255,255,255,0.10); border: 1px solid rgba(255,255,255,0.15); display: flex; align-items: center; justify-content: center; }
.service-body { padding: 24px; }
.service-tag { display: inline-block; font-family: 'Montserrat', sans-serif; font-size: 0.65rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; background: var(--tag-bg); color: var(--tag-color); padding: 4px 10px; border-radius: 100px; margin-bottom: 12px; }
.service-body h3 { font-size: 1rem; margin-bottom: 10px; }
.service-body p { font-size: 0.86rem; color: var(--text-muted); }

/* MODALIDADES */
.modalidades { margin-top: 64px; padding-top: 52px; border-top: 1px solid var(--border); }
.modalidades-header { margin-bottom: 36px; }
.modalidades-header h3 { font-family: 'Montserrat', sans-serif; font-size: clamp(1.2rem,2.5vw,1.6rem); font-weight: 700; color: var(--text); margin-top: 8px; }
.modalidades-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.modalidad-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px 32px; box-shadow: var(--card-shadow); transition: var(--transition); position: relative; overflow: hidden; }
.modalidad-card::before { content:''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--teal); transform: scaleX(0); transform-origin: left; transition: transform var(--transition); }
.modalidad-card:hover { transform: translateY(-4px); box-shadow: var(--card-hover); }
.modalidad-card:hover::before { transform: scaleX(1); }
.modalidad-num { width: 40px; height: 40px; border-radius: 50%; background: var(--teal); color: #fff; font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 1.1rem; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; flex-shrink: 0; }
.modalidad-card h4 { font-family: 'Montserrat', sans-serif; font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 12px; line-height: 1.4; }
.modalidad-card h4 span { display: block; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; color: var(--teal); text-transform: uppercase; margin-bottom: 4px; }
.modalidad-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.75; }

/* PROYECTOS */
.projects-filter { display: flex; gap: 12px; flex-wrap: wrap; margin: 40px 0 32px; }
.filter-btn { font-family: 'Montserrat', sans-serif; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; padding: 8px 20px; border-radius: 4px; border: 1px solid var(--border); background: transparent; color: var(--text-muted); cursor: pointer; transition: var(--transition); }
.filter-btn.active,.filter-btn:hover { background: var(--teal); border-color: var(--teal); color: #fff; }
.projects-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.project-card { position: relative; border-radius: var(--radius); overflow: hidden; cursor: pointer; }
.project-card:first-child { grid-column: 1/3; grid-row: 1/3; }
.project-thumb { width: 100%; height: 100%; min-height: 220px; display: flex; align-items: flex-end; transition: transform 0.5s ease; background-size: cover; background-position: center; }
.project-card:first-child .project-thumb { min-height: 440px; }
.project-card:hover .project-thumb { transform: scale(1.04); }
.project-overlay { position: absolute; inset: 0; background: linear-gradient(to top,var(--project-overlay1) 0%,var(--project-overlay2) 60%); display: flex; align-items: flex-end; transition: var(--transition); }
.project-info { padding: 20px 22px; width: 100%; }
.project-cat { font-family: 'Montserrat', sans-serif; font-size: 0.65rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: #F8D347; margin-bottom: 6px; }
.project-info h3 { font-size: 1rem; color: #fff; }
.project-kw { font-size: 0.8rem; color: rgba(255,255,255,0.58); margin-top: 4px; }

/* CONTACTO */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.4fr; gap: 64px; align-items: start; }
.contact-data { margin-top: 36px; display: flex; flex-direction: column; gap: 20px; }
.contact-data-item { display: flex; align-items: flex-start; gap: 16px; }
.contact-data-icon { width: 44px; height: 44px; flex-shrink: 0; background: var(--icon-bg); border-radius: 10px; display: flex; align-items: center; justify-content: center; }
.contact-data-icon svg { color: var(--teal); }
.contact-data-text .label { font-family: 'Montserrat', sans-serif; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 4px; }
.contact-data-text .value { font-size: 0.9rem; color: var(--text); display: block; }
.contact-data-text a.value:hover { color: var(--teal); }
.contact-final-phrase { margin-top: 32px; padding: 20px 22px; background: var(--teal-light); border-left: 3px solid var(--teal); border-radius: 0 var(--radius) var(--radius) 0; }
.contact-final-phrase p { font-size: 0.9rem; color: var(--text-muted); font-style: italic; }
.contact-map { margin-top: 32px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); height: 220px; }
.contact-map iframe { width: 100%; height: 100%; border: none; filter: grayscale(35%) brightness(0.92); }
.contact-form { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 40px 36px; box-shadow: var(--card-shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-group label { font-family: 'Montserrat', sans-serif; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); }
.form-group input,.form-group select,.form-group textarea { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 12px 14px; font-family: 'Inter', sans-serif; font-size: 0.9rem; color: var(--text); transition: border-color 0.2s, background 0.2s; width: 100%; outline: none; }
.form-group input:focus,.form-group select:focus,.form-group textarea:focus { border-color: var(--teal); background: var(--teal-light); }
.form-group select { appearance: none; cursor: pointer; }
.form-group textarea { resize: vertical; min-height: 110px; }
.form-submit { width: 100%; margin-top: 8px; padding: 15px; font-size: 0.95rem; justify-content: center; }

/* SOCIAL */
.social-links { display: flex; gap: 12px; margin-top: 28px; }
.social-btn { width: 42px; height: 42px; border-radius: 8px; background: var(--valor-bg); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; transition: var(--transition); color: var(--text-muted); }
.social-btn:hover { background: var(--teal); border-color: var(--teal); color: #fff; transform: translateY(-2px); }
.social-btn-dark { width: 42px; height: 42px; border-radius: 8px; background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.10); display: flex; align-items: center; justify-content: center; transition: var(--transition); color: rgba(255,255,255,0.55); }
.social-btn-dark:hover { background: var(--teal); border-color: var(--teal); color: #fff; transform: translateY(-2px); }

/* FOOTER */
footer { background: var(--footer-bg); border-top: 1px solid var(--footer-sep); padding: 56px 0 28px; }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand p { font-size: 0.88rem; color: var(--footer-text); margin-top: 14px; max-width: 260px; }
.footer-col h4 { font-family: 'Montserrat', sans-serif; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--footer-text); margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 0.88rem; color: var(--footer-link); transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--teal); }
.footer-bottom { padding-top: 24px; border-top: 1px solid var(--footer-sep); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 0.78rem; color: var(--footer-text); }
.footer-cert { display: flex; align-items: center; gap: 8px; font-size: 0.72rem; color: var(--footer-text); }
.cert-dot { width: 5px; height: 5px; border-radius: 50%; background: #7BA654; }

/* WHATSAPP */
.whatsapp-float { position: fixed; bottom: 28px; right: 28px; z-index: 9999; display: flex; align-items: center; gap: 12px; }
.whatsapp-label { background: #fff; color: #1A2633; font-family: 'Montserrat', sans-serif; font-size: 0.78rem; font-weight: 600; padding: 8px 14px; border-radius: 100px; box-shadow: 0 4px 16px rgba(0,0,0,0.14); opacity: 0; transform: translateX(12px); transition: var(--transition); pointer-events: none; white-space: nowrap; }
.whatsapp-float:hover .whatsapp-label { opacity: 1; transform: translateX(0); }
.whatsapp-btn { width: 58px; height: 58px; border-radius: 50%; background: #25D366; display: flex; align-items: center; justify-content: center; box-shadow: 0 6px 24px rgba(37,211,102,0.40); transition: var(--transition); flex-shrink: 0; }
.whatsapp-btn:hover { transform: scale(1.10); box-shadow: 0 8px 32px rgba(37,211,102,0.55); }

/* ANIMATIONS */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* RESPONSIVE */
@media(max-width:1024px) {
  .why-grid { grid-template-columns: repeat(2,1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .contact-wrap { grid-template-columns: 1fr; gap: 40px; }
  .stats-inner { grid-template-columns: repeat(2,1fr); }
  .stat-item:nth-child(2) { border-right: none; }
}
@media(max-width:768px) {
  :root { --nav-h: 60px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .grid-2 { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .services-grid-2 { grid-template-columns: 1fr; }
  .modalidades-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-card:first-child { grid-column: 1; grid-row: auto; }
  .project-card:first-child .project-thumb { min-height: 280px; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 28px 20px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .valores-grid { grid-template-columns: 1fr; }
  .nosotros-image { display: none; }
  .section { padding: 72px 0; }
  .nav-right .theme-toggle { display: none; }
}
@media(max-width:480px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
  .stats-inner { grid-template-columns: 1fr 1fr; }
}