:root {
  --primary-color: #008080;
  --accent-color: #006d6d;
  --background-light: #ffffff;
  --text-color-dark: #233;
  --text-color-light: #fff;
  --shadow-color: rgba(0,0,0,0.08);
  --success-color: #008080;
  --error-color: #e74c3c;
  --success-bg: #e8f7f7;
  --error-bg: #ffebeb;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { overscroll-behavior-y: contain; }
body {
  font-family: 'Poppins', sans-serif;
  background: var(--background-light);
  color: var(--text-color-dark);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
/* FIX: asegurar bloqueo sólido sin salto */
.scroll-locked { position: fixed; overflow: hidden; width: 100%; left: 0; right: 0; }

.header {
  position: sticky; top: 0; z-index: 50;
  width: 100%;
  background: linear-gradient(180deg, #008080 0%, #007272 100%);
  color: var(--text-color-light);
  padding: 22px 32px;
  display: flex; justify-content: space-between; align-items: center;
  box-shadow: 0 6px 20px rgba(0,0,0,.12);
  border-bottom: 4px solid #005d5d;
}
.header .brand { display: flex; align-items: center; gap: 12px; cursor: pointer; }
.header .brand .logo {
  width: 36px; height: 36px; border-radius: 10px;
  background: #00a0a0; display: grid; place-items: center;
  box-shadow: inset 0 0 0 2px rgba(255,255,255,.35), 0 4px 10px rgba(0,0,0,.15);
  font-weight: 800; letter-spacing: .5px;
}
.header h3 { font-size: 1.8em; font-weight: 700; }

.main-wrap {
  width: 100%; max-width: 1100px; margin: 28px auto; padding: 0 16px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start;
}

.left { display: flex; flex-direction: column; gap: 14px; }
.section-title { font-size: 1.1rem; font-weight: 600; color: #2a4; opacity: .7; }

.carousel {
  position: relative; width: 100%; height: 240px; overflow: hidden;
  border-radius: 14px; background: var(--text-color-light);
  box-shadow: 0 12px 30px var(--shadow-color);
  border: 1px solid #e9f1f1;
}
.carousel .post {
  position: absolute; inset: 0;
  padding: 18px; opacity: 0; transition: opacity 1s ease-in-out;
  display: flex; flex-direction: column; gap: 8px;
}
.carousel .post.active { opacity: 1; z-index: 1; }
.post h4 { color: var(--primary-color); font-size: 1.05rem; }
.post p { color: #466; line-height: 1.45; }

.right { display: flex; flex-direction: column; gap: 16px; }

.elegant {
  background: var(--text-color-light);
  border-radius: 14px;
  box-shadow: 0 12px 30px var(--shadow-color);
  border: 1px solid #e9f1f1;
}
.container.elegant {
  width: 100%;
  padding: 22px;
  text-align: left;
  display: block;
}
h2 { margin-bottom: 16px; font-size: 1.5em; color: var(--primary-color); }

.output {
  padding: 12px 14px; border-radius: 10px; margin-bottom: 14px; font-weight: 600;
  display: none; word-wrap: break-word; width: 100%;
}
.output.success { background: var(--success-bg); color: var(--success-color); }
.output.error   { background: var(--error-bg);   color: var(--error-color); }

button {
  width: 100%; padding: 12px 14px; background: var(--primary-color); color: var(--text-color-light);
  border: none; border-radius: 10px; cursor: pointer; transition: background .2s; font-size: 1.02em; font-weight: 700; margin-top: 8px;
}
button:hover { background: var(--accent-color); }

/* Inputs + floating labels */
.input-group { position: relative; margin: 16px 0; }
.input-group input {
  width: 100%;
  padding: 14px 12px;
  border: 1px solid #cfe7e7;
  border-radius: 10px;
  background-color: #ffffff;
  font-size: 1em;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.input-group input:focus { border-color: var(--accent-color); box-shadow: 0 0 0 4px rgba(0,128,128,.08); }
.input-group label {
  position: absolute; left: 12px; top: 14px; color: #577; font-size: 1em; pointer-events: none; transition: .2s all;
  background: transparent; padding: 0 4px;
}
.input-group input:focus + label,
.input-group input:not(:placeholder-shown) + label {
  top: -8px; left: 10px; font-size: 0.8em; color: var(--primary-color);
  background-color: #ffffff; padding: 0 2px;
}

/* With icon */
.input-with-icon input { padding-left: 44px; }
.input-with-icon label { left: 44px; }
.input-with-icon input:focus + label,
.input-with-icon input:not(:placeholder-shown) + label { left: 42px; }
.input-icon {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  font-size: 1.05rem; color: #8aa; pointer-events: none;
}
.input-with-icon input:focus ~ .input-icon { color: var(--primary-color); }

/* Buttons row */
.button-group { display: flex; align-items: center; margin-top: 12px; gap: 10px; }
.back-btn {
  background: #ffffff; color: var(--primary-color);
  font-size: 1em; padding: 10px; border-radius: 10px; flex: 0; width: 42px; height: 42px;
  display: grid; place-items: center; border: 1px solid #cfe7e7;
}
.back-btn:hover { background: var(--accent-color); color: var(--text-color-light); }
.submit-btn { flex: 1; }

.toggle { margin-top: 12px; font-size: .95em; }
.toggle a { color: var(--primary-color); cursor: pointer; text-decoration: none; font-weight: 700; }
.toggle a:hover { text-decoration: underline; }

.hidden { display: none; }

/* Footer y pestaña */
.footer {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; /* base */
  background: #ffffff; color: #245;
  border-top: 4px solid #005d5d;
  box-shadow: 0 -12px 30px rgba(0,0,0,.12);
  transform: translateY(100%); transition: transform .35s ease;
}
.footer.show { transform: translateY(0); }
.footer-inner {
  max-width: 1100px; margin: 0 auto; padding: 18px 16px;
  display: grid; grid-template-columns: repeat(3,1fr); gap: 16px;
}
.footer h5 { color: var(--primary-color); margin-bottom: 10px; font-size: 1.05rem; }
.footer ul { list-style: none; display: grid; gap: 8px; }
.footer a { color: #245; text-decoration: none; }
.footer a:hover { text-decoration: underline; }

.footer-tab {
  position: fixed; right: 16px; bottom: 0;
  transform: translateY(100%);
  background: var(--primary-color); color: #fff; padding: 6px 12px;
  border-top-left-radius: 10px; border-top-right-radius: 10px;
  font-weight: 700; font-size: .9rem; letter-spacing: .3px;
  box-shadow: 0 -4px 16px rgba(0,0,0,.18);
  transition: transform .35s ease, opacity .35s ease, bottom .35s ease;
  opacity: 0; pointer-events: none;
  z-index: 60;                /* <- siempre por encima del footer */
  will-change: transform, bottom, opacity;
}
.footer-tab.show { transform: translateY(0); opacity: 1; pointer-events: auto; }

.scroll-spacer { height: 40vh; display: none; }

@media (max-width: 980px){
  .main-wrap { grid-template-columns: 1fr; }
  .carousel { height: 200px; }
  .footer-inner { grid-template-columns: 1fr; }
}