:root {
  --bg-color: rgba(255, 255, 255, 1);
  --text-color: rgba(0, 0, 0, 1);
  --red: rgba(220, 38, 38, 1);
  --surface-color: rgba(240, 240, 240, 1);
  --hover-color: rgba(0, 0, 0, 0.1);
  --slider-bg: rgba(0, 0, 0, 0.2);
  --slider-knob-bg: rgba(255, 255, 255, 1);
  --slider-knob-color: rgba(0, 0, 0, 1);
}

.dark-theme {
  --bg-color: rgba(18, 18, 18, 1);
  --text-color: rgba(240, 240, 240, 1);
  --red: rgba(255, 85, 85, 1);
  --surface-color: rgba(34, 34, 34, 1);
  --hover-color: rgba(255, 255, 255, 0.1);
  --slider-bg: rgba(255, 255, 255, 0.3);
  --slider-knob-bg: rgba(0, 0, 0, 1);
  --slider-knob-color: rgba(255, 255, 255, 1);
}

html {
  scroll-behavior: smooth;
}

/* UP BUTTON */

#scroll-top-btn {
  position: fixed;
  bottom: 75px;
  right: 40px;
  padding: 10px 15px;
  background-color: var(--bg-color);
  color: var(--text-color);
  box-shadow: 1px 4px 6px var(--red);
  border: none;
  border-radius: 5px;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.3s ease;
  z-index: 1000;
}

#scroll-top-btn:hover {
  color: var(--red);
  opacity: 1;
}

/* MAINTENANCE */

.maintenance-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  background: none;
}

.maintenance-page::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("../../img/maintenance_background.jpg") no-repeat center
    center/cover;
  opacity: 0.25;
  z-index: -1;
}

.maintenance-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 2rem 1rem;
}

body {
  margin: 0;
  font-family: sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.site-header,
.site-footer {
  position: sticky;
  left: 0;
  right: 0;
  padding: 1rem;
  background-color: var(--red);
  color: var(--text-color);
  transition: color 0.3s ease-in-out;
  z-index: 1000;
}

.site-header {
  top: 0;
}

.site-footer {
  bottom: 0;
  text-align: center;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar a {
  margin-right: 1rem;
  color: var(--text-color);
  text-decoration: none;
}

.navbar-logo {
  height: 100px;
}

.navbar-nav .nav-link {
  color: var(--text-color);
  transition: color 0.3s ease-in-out;
}

.navbar-nav .nav-link.active {
  color: var(--text-color) !important;
}

.content {
  flex: 1;
  overflow-y: auto;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: color 0.3s ease-in-out;
}

.content section {
  min-height: 100%;
  padding: 2rem;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

/* HOME */

/* HERO */

#hero-section {
  position: relative;
  overflow: hidden;
  z-index: 0;
}

#hero-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("../../img/home_000.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.25;
  z-index: -1;
}

.hero {
  background-size: cover;
  background-position: center;
  padding: 6rem 2rem;
  color: var(--text-color);
  text-align: center;
}

.hero .btn {
  color: var(--text-color);
  border-color: var(--text-color);
}

.hero .btn:hover {
  color: var(--red);
  border-color: var(--red);
  background-color: var(--hover-color);
}

/* ABOUT */

.about {
  display: flex;
  flex-direction: row;
  gap: 2rem;
  padding: 2rem;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
}

.info-block {
  flex: 1 1 300px;
  background-color: var(--bg-color);
  padding: 2rem;
  border-radius: 0.75rem;
  box-shadow: 0 0 12px var(--hover-color);
  transition: background-color 0.3s ease;
}

.dark-theme .info-block {
  background-color: var(--bg-color);
  color: var(--text-color);
  box-shadow: 0 0 12px var(--slider-bg);
}

.info-block h2 {
  margin-bottom: 1rem;
  font-size: 1.5rem;
  color: var(--red);
}

.info-block p {
  font-size: 1rem;
  line-height: 1.6;
}

/* CLIENTS */

.clients-grid,
.modal-clients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  padding: 2rem;
  justify-items: center;
}

.modal-header,
.modal-body {
  color: var(--text-color);
  background-color: var(--bg-color);
}

.client-card {
  flex: 1 1 200px;
  padding: 1rem;
  background: var(--red);
  border-radius: 8px;
  text-align: center;
}

.card-image-wrapper {
  width: 100%;
  height: 280px; /* o ajustable según el diseño */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: flex-start; /* empieza desde la parte superior */
  border-radius: 12px 12px 0 0;
}

.card-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* recorta sin deformar */
  object-position: top center; /* empieza desde la parte superior */
  transition: transform 0.3s ease;
}

.card:hover .card-image-wrapper img {
  transform: scale(1.05); /* pequeño efecto zoom al pasar el mouse */
}

.placeholder-card {
  cursor: pointer;
}

.placeholder-card:hover {
  background-color: var(--slider-bg);
}

.dark-theme .btn-close {
  filter: invert(1);
}

/* CONTACT */

.contact-section {
  padding: 2rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  margin-bottom: 0.5rem;
  font-weight: bold;
}

.form-group input,
.form-group textarea {
  padding: 0.75rem;
  border: 1px solid var(--red);
  border-radius: 6px;
  font-size: 1rem;
  transition: border 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--red);
  outline: none;
}

.btn-submit {
  background-color: var(--slider-bg);
  color: var(--text-color);
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  align-self: flex-start;
  transition: background-color 0.3s ease;
}

.btn-submit:hover {
  background-color: var(--red);
}

body.dark-theme .form-group input,
body.dark-theme .form-group textarea {
  background-color: var(--bg-color);
  color: var(--text-color);
  border: 1px solid var(--red);
}

body.dark-theme .btn-submit {
  background-color: var(--slider-bg);
}

body.dark-theme .btn-submit:hover {
  background-color: var(--red);
}

.map-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
}

.section-content h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 28px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--slider-bg);
  transition: 0.4s;
  border-radius: 34px;
}

.slider::before {
  position: absolute;
  content: "🌙";
  font-size: 14px;
  text-align: center;
  line-height: 20px;
  height: 20px;
  width: 20px;
  left: 4px;
  bottom: 4px;
  background-color: var(--slider-knob-bg);
  color: var(--slider-knob-color);
  transition: transform 0.3s, background-color 0.3s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--slider-bg);
}

input:checked + .slider::before {
  transform: translateX(22px);
}

/* Hover */
.switch:hover .slider {
  background-color: var(--hover-color);
}

.switch:hover input:checked + .slider {
  background-color: var(--slider-bg);
}

.switch:hover .slider::before {
  background-color: rgba(var(--bg-color), 0.9);
}