/* ============================================================
   QUÍMICOS FUNCIONALES — main.css
   Componentes globales y utilidades
   ============================================================ */

/* ===== LOADER ===== */
.site-loader {
  position: fixed;
  inset: 0;
  background: var(--color-navy);
  z-index: var(--z-loader);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  transition: opacity 0.5s var(--ease-out), visibility 0.5s;
}

.site-loader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-logo svg {
  width: 80px;
  height: 80px;
}

.loader-circle {
  stroke-dasharray: 175;
  stroke-dashoffset: 175;
  animation: loaderCircle 1.2s var(--ease-out) forwards;
}

.loader-wave {
  stroke-dasharray: 60;
  stroke-dashoffset: 60;
  animation: loaderWave 0.8s 0.4s var(--ease-out) forwards;
}

@keyframes loaderCircle {
  to { stroke-dashoffset: 0; }
}
@keyframes loaderWave {
  to { stroke-dashoffset: 0; }
}

.loader-bar {
  width: 160px;
  height: 2px;
  background: rgba(255,255,255,0.15);
  border-radius: 1px;
  overflow: hidden;
}

.loader-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-orange), var(--color-yellow));
  animation: loaderBar 1.5s var(--ease-inout) forwards;
  transform-origin: left;
}

@keyframes loaderBar {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

/* ===== CONTENEDOR ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

.container--wide {
  max-width: var(--container-wide);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* ===== SECCIONES ===== */
.section {
  padding-block: var(--space-24);
}

.section--sm {
  padding-block: var(--space-16);
}

.section--lg {
  padding-block: clamp(var(--space-24), 8vw, var(--space-32));
}

.section-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-orange);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.section-label::before {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: var(--color-orange);
  border-radius: 1px;
}

.section-title {
  font-size: clamp(var(--text-4xl), 5vw, var(--text-6xl));
  font-weight: 900;
  color: var(--color-navy);
  line-height: 1.0;
  text-transform: uppercase;
}

.section-title em {
  font-style: normal;
  color: var(--color-orange);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  font-weight: 300;
  margin-top: var(--space-4);
  max-width: 60ch;
}

/* ===== BOTONES ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75em 1.75em;
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.12);
  transform: translateX(-105%) skewX(-15deg);
  transition: transform 0.4s var(--ease-out);
}

.btn:hover::before {
  transform: translateX(105%) skewX(-15deg);
}

.btn--primary {
  background: var(--color-orange);
  color: var(--color-white);
  box-shadow: var(--shadow-orange);
}

.btn--primary:hover {
  background: var(--color-orange-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(244,98,31,0.40);
}

.btn--secondary {
  background: transparent;
  color: var(--color-orange);
  border: 2px solid var(--color-orange);
}

.btn--secondary:hover {
  background: var(--color-orange);
  color: var(--color-white);
}

.btn--navy {
  background: var(--color-navy);
  color: var(--color-white);
  box-shadow: var(--shadow-navy);
}

.btn--navy:hover {
  background: var(--color-navy-light);
  transform: translateY(-2px);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-navy);
}

.btn--white:hover {
  background: var(--color-off-white);
  transform: translateY(-2px);
}

.btn--lg {
  padding: 1em 2.25em;
  font-size: var(--text-lg);
}

.btn--sm {
  padding: 0.55em 1.25em;
  font-size: var(--text-sm);
}

.btn svg {
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.btn:hover svg {
  transform: translateX(3px);
}

/* ===== BADGE / PILL ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25em 0.75em;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  background: rgba(244,98,31,0.12);
  color: var(--color-orange);
}

/* ===== TARJETAS ===== */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* ===== DIVIDER ===== */
.divider {
  height: 1px;
  background: var(--color-gray-100);
  margin-block: var(--space-8);
}

/* ===== CHIP LINE DECORATION ===== */
.line-accent {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.line-accent::after {
  content: '';
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, var(--color-orange), transparent);
}

/* ===== COUNTER STATS ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-8);
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(var(--text-4xl), 5vw, var(--text-7xl));
  font-weight: 900;
  color: var(--color-white);
  line-height: 1;
  display: block;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.65);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: var(--space-2);
}

/* ===== AVISO DE PRIVACIDAD ===== */
.privacy-page {
  padding-block: var(--space-32) var(--space-24);
}

.privacy-page h1 {
  font-size: var(--text-4xl);
  color: var(--color-navy);
  margin-bottom: var(--space-8);
}

.privacy-page h2 {
  font-size: var(--text-2xl);
  color: var(--color-navy);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
}

.privacy-page p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  line-height: 1.8;
}

/* ===== FORMULARIO ===== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  letter-spacing: 0.04em;
}

.form-input,
.form-textarea,
.form-select {
  padding: 0.875rem 1rem;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-orange);
  box-shadow: 0 0 0 3px rgba(244,98,31,0.12);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-300);
}

.form-error {
  font-size: var(--text-sm);
  color: #E53E3E;
}

.form-success {
  padding: var(--space-4) var(--space-6);
  background: rgba(72,187,120,0.12);
  border: 1.5px solid #48BB78;
  border-radius: var(--radius-md);
  color: #276749;
  font-weight: 500;
  display: none;
}

.form-error-msg {
  padding: var(--space-4) var(--space-6);
  background: rgba(229,62,62,0.08);
  border: 1.5px solid #E53E3E;
  border-radius: var(--radius-md);
  color: #9B2C2C;
  font-weight: 500;
  display: none;
}

/* ===== REVEAL ANIMATION STATES ===== */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

[data-reveal="left"] {
  transform: translateX(-24px);
}

[data-reveal="right"] {
  transform: translateX(24px);
}

[data-reveal="scale"] {
  transform: scale(0.92);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translate(0) scale(1);
}

/* DELAY HELPERS */
[data-delay="1"] { transition-delay: 0.1s; }
[data-delay="2"] { transition-delay: 0.2s; }
[data-delay="3"] { transition-delay: 0.3s; }
[data-delay="4"] { transition-delay: 0.4s; }
[data-delay="5"] { transition-delay: 0.5s; }
[data-delay="6"] { transition-delay: 0.6s; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-navy);
  color: var(--color-white);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 2fr;
  gap: var(--space-12);
  padding: var(--space-16) var(--container-px);
  max-width: var(--container-max);
  margin-inline: auto;
}

.footer-logo {
  margin-bottom: var(--space-4);
}

.footer-tagline {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.55);
  line-height: 1.7;
  max-width: 30ch;
  margin-bottom: var(--space-6);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.65);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--color-orange);
  color: var(--color-white);
  transform: translateY(-2px);
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-orange);
  margin-bottom: var(--space-5);
}

.footer-nav ul,
.footer-products ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-nav a,
.footer-products a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.55);
  transition: color var(--transition-fast);
}

.footer-nav a:hover,
.footer-products a:hover {
  color: var(--color-white);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  color: rgba(255,255,255,0.55);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}

.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-orange);
}

.footer-contact-item a {
  color: rgba(255,255,255,0.55);
  transition: color var(--transition-fast);
}

.footer-contact-item a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: var(--space-6) var(--container-px);
  max-width: var(--container-max);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom p {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.35);
}

.footer-bottom-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.35);
}

.footer-bottom-links a {
  color: rgba(255,255,255,0.55);
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--color-orange);
}

.footer-divider {
  opacity: 0.3;
}

/* ===== RESPONSIVE FOOTER ===== */
@media (max-width: 1023px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 639px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    padding-block: var(--space-12);
  }
  .footer-brand {
    grid-column: 1;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ===== PÁGINA 404 ===== */
.page-404 {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-16) var(--container-px);
}

.page-404 h1 {
  font-size: clamp(var(--text-7xl), 18vw, 12rem);
  color: var(--color-gray-100);
  line-height: 1;
  margin-bottom: var(--space-6);
}

.page-404 p {
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  max-width: 40ch;
  margin-inline: auto;
}