:root {
  --ink: #102a2c;
  --muted: #5b6b70;
  --emerald: #2aa876;
  --mint: #dff7ec;
  --petrol: #0d3f4a;
  --blue: #2f7dd1;
  --sand: #f2eadb;
  --paper: #fbfdfb;
  --line: #dce8e4;
  --shadow: 0 22px 60px rgba(13, 63, 74, .13);
  --radius: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.site-header {
  position: fixed;
  inset: 16px 24px auto;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 12px 14px;
  border: 1px solid rgba(220, 232, 228, .9);
  border-radius: 999px;
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 16px 42px rgba(12, 58, 68, .09);
  backdrop-filter: blur(18px);
}

.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, var(--petrol), var(--emerald));
  font-size: .78rem;
  letter-spacing: 0;
}
.brand-text { white-space: nowrap; }

.main-nav { justify-self: center; display: flex; gap: 24px; color: var(--muted); font-weight: 600; font-size: .95rem; }
.main-nav a:hover { color: var(--petrol); }
.header-cta, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.header-cta, .btn-primary { color: #fff; background: linear-gradient(135deg, var(--petrol), var(--emerald)); box-shadow: 0 14px 32px rgba(42, 168, 118, .24); }
.btn-secondary { color: var(--petrol); background: #fff; border: 1px solid var(--line); }
.header-cta:hover, .btn:hover { transform: translateY(-2px); box-shadow: 0 20px 36px rgba(42, 168, 118, .22); }
.nav-toggle { display: none; border: 0; background: transparent; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; margin: 5px 0; background: var(--ink); }

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(420px, .86fr) minmax(520px, 1.14fr);
  align-items: center;
  gap: clamp(38px, 5vw, 86px);
  padding: 132px clamp(24px, 6vw, 84px) 72px;
  overflow: hidden;
}
.hero-copy,
.hero-visual {
  min-width: 0;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 84% 18%, rgba(47, 125, 209, .18), transparent 28%),
    radial-gradient(circle at 20% 82%, rgba(42, 168, 118, .18), transparent 30%),
    linear-gradient(135deg, #f8fcfb, #eef8f5 55%, #fbf6ec);
  z-index: -2;
}
.hero-bg::after {
  content: "";
  position: absolute;
  width: 62vw;
  height: 62vw;
  right: -22vw;
  top: 8vh;
  border: 1px solid rgba(13, 63, 74, .09);
  border-radius: 45% 55% 48% 52%;
  animation: drift 12s ease-in-out infinite alternate;
}
.eyebrow, .section-kicker {
  margin: 0 0 14px;
  color: var(--emerald);
  font-size: .8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 720px;
  margin-bottom: 22px;
  font-size: clamp(3.6rem, 6.15vw, 6.9rem);
  line-height: .94;
  letter-spacing: 0;
  text-wrap: balance;
}
h2 { font-size: clamp(2.1rem, 4vw, 4.6rem); line-height: 1; letter-spacing: 0; }
h3 { line-height: 1.15; }
.hero-lead { max-width: 660px; color: var(--muted); font-size: clamp(1.05rem, 1.7vw, 1.35rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0; }

.metric-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; max-width: 620px; }
.metric-row div { padding: 18px; border: 1px solid rgba(220, 232, 228, .8); border-radius: var(--radius); background: rgba(255, 255, 255, .68); }
.metric-row strong { display: block; font-size: 1.75rem; color: var(--petrol); line-height: 1; }
.metric-row span { display: block; color: var(--muted); font-size: .86rem; }

.hero-visual { position: relative; min-height: 520px; }
.hero-visual img {
  width: 100%;
  height: min(68vh, 680px);
  object-fit: cover;
  object-position: center right;
  border-radius: 28px;
  box-shadow: var(--shadow);
}
.floating-card {
  position: absolute;
  width: min(230px, 48%);
  padding: 16px;
  border: 1px solid rgba(255,255,255,.7);
  border-radius: var(--radius);
  background: rgba(255,255,255,.82);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  animation: floatCard 5s ease-in-out infinite alternate;
}
.floating-card span { display: block; color: var(--muted); font-size: .8rem; }
.floating-card strong { display: block; color: var(--petrol); }
.card-one { left: -18px; bottom: 70px; }
.card-two { right: 28px; top: 70px; animation-delay: -2s; }

.section-pad { padding: 108px clamp(24px, 6vw, 84px); }
.intro-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 60px; align-items: start; }
.intro-copy { color: var(--muted); font-size: 1.1rem; }
.section-heading { max-width: 820px; margin-bottom: 44px; }
.section-heading p:last-child { color: var(--muted); font-size: 1.08rem; }

.service-grid, .case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.service-card, .case-card, .step {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 14px 36px rgba(13, 63, 74, .06);
}
.service-card {
  min-height: 292px;
  padding: 28px;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.service-card:hover { transform: translateY(-7px); box-shadow: var(--shadow); border-color: rgba(42, 168, 118, .38); }
.icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 24px;
  border-radius: 50%;
  color: var(--petrol);
  background: var(--mint);
  font-size: 1.35rem;
}
.service-card p, .case-card p, .step p { color: var(--muted); }
.service-card a { display: inline-block; margin-top: 12px; color: var(--emerald); font-weight: 800; }

.benefits { background: linear-gradient(135deg, var(--petrol), #145f65); color: #fff; }
.benefit-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 52px; align-items: center; }
.benefits .eyebrow { color: #93ead0; }
.benefit-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.benefit-list li { padding: 16px 18px; border: 1px solid rgba(255,255,255,.18); border-radius: var(--radius); background: rgba(255,255,255,.08); }

.process { position: relative; background: #f5faf8; overflow: hidden; }
.process-line {
  position: absolute;
  left: 8%;
  right: 8%;
  top: 52%;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--emerald), var(--blue), var(--emerald));
  transform-origin: left;
  animation: linePulse 3s ease-in-out infinite;
  opacity: .65;
}
.process-steps { position: relative; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; }
.step { min-height: 230px; padding: 24px; }
.step span { color: var(--emerald); font-weight: 800; }

.solutions { background: #fff; }
.solution-slider {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.solution-card {
  min-height: 340px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  border-radius: 20px;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(13,63,74,.14), rgba(13,63,74,.9)),
    radial-gradient(circle at 70% 18%, rgba(223,247,236,.8), transparent 18%),
    linear-gradient(135deg, var(--petrol), var(--emerald));
  transition: transform .45s ease, filter .45s ease;
}
.solution-card:nth-child(2) { background: linear-gradient(180deg, rgba(13,63,74,.12), rgba(13,63,74,.88)), linear-gradient(135deg, #2f7dd1, #69c5b1); }
.solution-card:nth-child(3) { background: linear-gradient(180deg, rgba(13,63,74,.12), rgba(13,63,74,.88)), linear-gradient(135deg, #726f55, #2aa876); }
.solution-card:nth-child(4) { background: linear-gradient(180deg, rgba(13,63,74,.12), rgba(13,63,74,.88)), linear-gradient(135deg, #0d3f4a, #2f7dd1); }
.solution-card.active { transform: translateY(-12px); filter: saturate(1.08); }
.solution-card span { font-weight: 800; color: #bcf4e3; }

.case-card { min-height: 220px; padding: 24px; }
.case-card span { display: block; color: var(--petrol); font-weight: 800; }

.testimonials { background: linear-gradient(135deg, #f6fbfa, var(--sand)); }
.testimonial-track { position: relative; min-height: 210px; }
.testimonial {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.82);
  box-shadow: var(--shadow);
  font-size: clamp(1.25rem, 2.2vw, 2rem);
  line-height: 1.25;
  opacity: 0;
  transform: translateX(24px);
  transition: opacity .45s ease, transform .45s ease;
}
.testimonial.active { opacity: 1; transform: translateX(0); }
.testimonial cite { display: block; margin-top: 22px; color: var(--emerald); font-size: 1rem; font-style: normal; font-weight: 800; }

.final-cta {
  padding: 110px 24px;
  text-align: center;
  color: #fff;
  background:
    linear-gradient(rgba(13,63,74,.88), rgba(13,63,74,.9)),
    url("../img/certusenergy-hero.png") center/cover;
}
.final-cta div { max-width: 820px; margin: 0 auto; }
.final-cta p { color: rgba(255,255,255,.82); font-size: 1.16rem; }

.contact {
  display: grid;
  grid-template-columns: .78fr 1.22fr;
  gap: 50px;
  align-items: start;
}
.contact-copy p:last-child { color: var(--muted); }
.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}
label { display: grid; gap: 8px; color: var(--petrol); font-weight: 800; font-size: .92rem; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 15px;
  color: var(--ink);
  background: #f9fcfb;
  font: inherit;
}
textarea { resize: vertical; }
.full { grid-column: 1 / -1; }
.privacy { display: flex; align-items: flex-start; gap: 10px; color: var(--muted); font-weight: 500; }
.privacy input { width: auto; margin-top: 6px; }
.file-field input { background: #fff; }
.form-messages { display: grid; gap: 10px; }
.form-message {
  margin: 0;
  padding: 14px 16px;
  border-radius: var(--radius);
  font-weight: 700;
}
.form-message.success {
  color: #0f5132;
  background: #dff7ec;
  border: 1px solid rgba(42, 168, 118, .32);
}
.form-message.error {
  color: #842029;
  background: #f8d7da;
  border: 1px solid rgba(132, 32, 41, .24);
}

.site-footer {
  display: grid;
  grid-template-columns: 1.2fr .7fr .8fr;
  gap: 36px;
  padding: 42px clamp(24px, 6vw, 84px);
  color: rgba(255,255,255,.78);
  background: #0b2d33;
}
.site-footer .brand { color: #fff; margin-bottom: 14px; }
.site-footer nav, .site-footer address { display: grid; gap: 10px; font-style: normal; }
.site-footer a:hover { color: #fff; }

.admin-body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 82% 0%, rgba(47, 125, 209, .14), transparent 30%),
    linear-gradient(135deg, #f7fbfa, #edf7f3);
}
.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px clamp(18px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.84);
  backdrop-filter: blur(16px);
}
.admin-main {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 42px 0 72px;
}
.admin-title {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}
.admin-title h1,
.admin-login h1 {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: .95;
}
.admin-login {
  min-height: calc(100vh - 180px);
  display: grid;
  grid-template-columns: 1fr minmax(320px, 440px);
  gap: 42px;
  align-items: center;
}
.admin-login p {
  max-width: 560px;
  color: var(--muted);
}
.admin-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.9);
  box-shadow: var(--shadow);
}
.admin-form {
  display: grid;
  gap: 16px;
  padding: 24px;
}
.admin-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--petrol);
  background: #fff;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}
.admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}
.status-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}
.status-filter {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: #fff;
  font-weight: 800;
}
.status-filter.active {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--petrol), var(--emerald));
}
.status-filter span {
  display: grid;
  place-items: center;
  min-width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(13,63,74,.08);
}
.status-filter.active span { background: rgba(255,255,255,.2); }
.lead-table { display: grid; }
.lead-row {
  display: grid;
  grid-template-columns: 1.25fr 1fr .7fr .8fr .55fr;
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}
.lead-row:last-child { border-bottom: 0; }
.lead-row:not(.lead-head):hover { background: #f6fbfa; }
.lead-head {
  color: var(--muted);
  font-size: .82rem;
  font-weight: 800;
  text-transform: uppercase;
}
.lead-row small {
  display: block;
  color: var(--muted);
  word-break: break-word;
}
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 800;
  font-style: normal;
}
.badge-nuevo { color: #0f5132; background: #dff7ec; }
.badge-contactado { color: #084298; background: #dbeafe; }
.badge-cerrado { color: #5f3f00; background: #fff2cc; }
.empty-state {
  margin: 0;
  padding: 28px;
  color: var(--muted);
}
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 18px;
}
.detail-card { padding: 24px; }
.detail-card h2 {
  margin-bottom: 18px;
  font-size: 1.35rem;
  line-height: 1.15;
}
.detail-card dl {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 12px 18px;
  margin: 0;
}
.detail-card dt { color: var(--muted); font-weight: 800; }
.detail-card dd { margin: 0; word-break: break-word; }
.full-width { grid-column: 1 / -1; }
.lead-message {
  margin: 0;
  color: var(--muted);
  white-space: pre-wrap;
}
.reply-form {
  padding: 0;
  box-shadow: none;
  border: 0;
  background: transparent;
  grid-template-columns: 1fr;
}
.reply-list {
  display: grid;
  gap: 14px;
}
.reply-item {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f9fcfb;
}
.reply-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}
.reply-date {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: .9rem;
}
.admin-warning {
  margin: 18px 0 0;
  padding: 12px;
  border: 1px solid rgba(132, 32, 41, .24);
  border-radius: var(--radius);
  color: #842029;
  background: #f8d7da;
  font-weight: 700;
}

.reveal { opacity: 0; transform: translateY(26px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes drift {
  from { transform: translate3d(0, 0, 0) rotate(0deg); }
  to { transform: translate3d(-34px, 22px, 0) rotate(18deg); }
}
@keyframes floatCard {
  from { transform: translateY(0); }
  to { transform: translateY(-16px); }
}
@keyframes linePulse {
  0%, 100% { transform: scaleX(.72); opacity: .42; }
  50% { transform: scaleX(1); opacity: .75; }
}

@media (max-width: 1280px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    min-height: auto;
    padding-top: 128px;
  }
  .hero-copy {
    max-width: 860px;
  }
  .hero-visual img {
    height: clamp(360px, 48vw, 560px);
  }
}

@media (max-width: 1040px) {
  .site-header { grid-template-columns: auto auto; }
  .nav-toggle { display: block; justify-self: end; }
  .main-nav {
    position: absolute;
    left: 18px;
    right: 18px;
    top: calc(100% + 10px);
    display: none;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: #fff;
    box-shadow: var(--shadow);
  }
  .main-nav.open { display: grid; gap: 14px; }
  .header-cta { display: none; }
  .hero, .intro-grid, .benefit-panel, .contact { grid-template-columns: 1fr; }
  .hero { padding-top: 124px; }
  .hero-visual { min-height: auto; }
  .service-grid, .case-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process-line { display: none; }
  .process-steps, .solution-slider { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer { grid-template-columns: 1fr 1fr; }
  .admin-login, .detail-grid { grid-template-columns: 1fr; }
  .lead-row { grid-template-columns: 1fr; gap: 6px; }
  .lead-head { display: none; }
}

@media (max-width: 680px) {
  .site-header { inset: 10px 12px auto; border-radius: 24px; }
  .brand-text { font-size: .95rem; }
  .hero { grid-template-columns: 1fr; gap: 28px; padding: 112px 18px 56px; }
  h1 { font-size: clamp(3.1rem, 16vw, 4.7rem); }
  .hero-actions, .metric-row, .service-grid, .case-grid, .process-steps, .solution-slider, .benefit-list, .contact-form, .site-footer {
    grid-template-columns: 1fr;
  }
  .btn, .header-cta { width: 100%; }
  .metric-row { display: grid; max-width: none; gap: 10px; }
  .metric-row div {
    display: grid;
    grid-template-columns: max-content max-content;
    align-items: baseline;
    justify-content: start;
    gap: 8px;
    min-width: 0;
    padding: 16px 18px;
  }
  .metric-row strong,
  .metric-row span {
    display: block;
    white-space: nowrap;
  }
  .metric-row strong { font-size: clamp(1.55rem, 7vw, 1.75rem); }
  .metric-row span {
    min-width: 0;
    font-size: clamp(.78rem, 3.4vw, .9rem);
  }
  .hero-visual img { height: 360px; border-radius: 18px; }
  .floating-card { position: static; width: auto; margin-top: 10px; animation: none; }
  .section-pad { padding: 76px 18px; }
  .service-card, .case-card, .step { min-height: auto; }
  .solution-card { min-height: 260px; }
  .testimonial-track { min-height: 310px; }
  .testimonial { padding: 24px; font-size: 1.25rem; }
  .contact-form { padding: 18px; }
  .admin-title, .admin-header { align-items: flex-start; flex-direction: column; }
  .admin-actions { width: 100%; }
  .admin-link { width: 100%; }
  .detail-card dl { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}