/* Modern CSS Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  text-rendering: optimizeSpeed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

a {
  text-decoration-skip-ink: auto;
}

ul,
ol {
  list-style: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* Remove animations for people who have turned them off */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}
:root {
  /* Colors - Primary (from Logo) */
  --color-primary: #3D6B63;
  --color-primary-mid: #507873;
  --color-primary-light: #6B9E96;
  --color-sage: #4B5F55;
  --color-deep: #2C4A44;

  /* Colors - Backgrounds */
  --color-dark-bg: #0A1A17;
  --color-bg: #F5F9F8;
  --color-bg-alt: #E8F0EE;
  --color-white: #FFFFFF;

  /* Colors - Accent */
  --color-sand: #D4C5A9;
  --color-earth: #8B7D5E;

  /* Colors - Functional */
  --color-success: #27AE60;
  --color-error: #C0392B;

  /* Typography */
  --font-heading: 'Merriweather', Georgia, serif;
  --font-body: 'Montserrat', 'Segoe UI', sans-serif;

  /* Font Sizes (Perfect Fourth 1.333) */
  --text-xs: 0.75rem;    /* 12px */
  --text-sm: 0.875rem;   /* 14px */
  --text-base: 1rem;     /* 16px */
  --text-lg: 1.125rem;   /* 18px */
  --text-xl: 1.375rem;   /* 22px */
  --text-2xl: 1.75rem;   /* 28px */
  --text-3xl: 2.25rem;   /* 36px */
  --text-4xl: 3rem;      /* 48px */
  --text-5xl: 3.75rem;   /* 60px - hero on desktop */

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(44, 74, 68, 0.08);
  --shadow-md: 0 4px 12px rgba(44, 74, 68, 0.12);
  --shadow-lg: 0 8px 24px rgba(44, 74, 68, 0.16);
  --shadow-xl: 0 12px 36px rgba(44, 74, 68, 0.2);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --container-wide: 1400px;
  --nav-height: 72px;

  /* Z-index scale */
  --z-behind: -1;
  --z-base: 0;
  --z-above: 10;
  --z-nav: 100;
  --z-overlay: 200;
  --z-modal: 300;
}
/* Typography */
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-deep);
  background-color: var(--color-bg);
}

/* Headings */
h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 900;
  line-height: 1.2;
}

h4, h5, h6 {
  font-family: var(--font-body);
  font-weight: 600;
  line-height: 1.3;
}

h1 {
  font-size: var(--text-4xl);
  color: var(--color-deep);
  letter-spacing: 0;
}

h2 {
  font-size: var(--text-3xl);
  color: var(--color-primary);
}

h3 {
  font-size: var(--text-2xl);
  color: var(--color-sage);
}

h4 {
  font-size: var(--text-xl);
  color: var(--color-deep);
}

/* Body text */
p {
  margin-bottom: var(--space-md);
}

.text-lg {
  font-size: var(--text-lg);
}

.text-sm {
  font-size: var(--text-sm);
}

.text-xs {
  font-size: var(--text-xs);
}

/* Links */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-light);
}

/* Lists inside content */
.content ul,
.content ol {
  padding-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

.content ul {
  list-style-type: disc;
}

.content ol {
  list-style-type: decimal;
}

.content li {
  margin-bottom: var(--space-xs);
  line-height: 1.6;
}

/* Blog / article typography */
.prose {
  max-width: var(--container-narrow);
  line-height: 1.75;
}

.prose h2 {
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-lg);
}

.prose h3 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.prose p {
  margin-bottom: var(--space-lg);
}

.prose blockquote {
  border-left: 4px solid var(--color-primary);
  padding-left: var(--space-lg);
  margin: var(--space-2xl) 0;
  font-style: italic;
  color: var(--color-sage);
}

.prose strong {
  color: var(--color-deep);
  font-weight: 600;
}

/* Responsive typography */
@media (max-width: 768px) {
  h1 {
    font-size: var(--text-3xl);
  }

  h2 {
    font-size: var(--text-2xl);
  }

  h3 {
    font-size: var(--text-xl);
  }
}
/* Layout */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-xl);
}

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

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

/* Sections */
.section {
  padding-block: var(--space-4xl);
}

.section--sm {
  padding-block: var(--space-2xl);
}

.section--lg {
  padding-block: var(--space-5xl);
}

.section--dark {
  background-color: var(--color-dark-bg);
  color: var(--color-white);
}

.section--dark h2,
.section--dark h3 {
  color: var(--color-primary-light);
}

.section--dark p {
  color: rgba(255, 255, 255, 0.85);
}

/* Restore card colors inside dark sections */
.section--dark .card__title {
  color: var(--color-primary);
}

.section--dark .card__text,
.section--dark .card p {
  color: var(--color-sage);
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section--sand {
  background-color: var(--color-sand);
}

.section--sand .footer__contact-link {
  color: var(--color-dark-bg);
}

.section--sand .footer__contact-link:hover {
  color: var(--color-primary);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid--auto {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Flex utilities */
.flex {
  display: flex;
}

.flex--center {
  align-items: center;
  justify-content: center;
}

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

.flex--column {
  flex-direction: column;
}

.flex--gap-sm {
  gap: var(--space-sm);
}

.flex--gap-md {
  gap: var(--space-md);
}

.flex--gap-lg {
  gap: var(--space-lg);
}

.flex--gap-xl {
  gap: var(--space-xl);
}

/* Split layout (text + image) */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.split--reverse {
  direction: rtl;
}

.split--reverse > * {
  direction: ltr;
}

/* Section headers */
.section-header {
  text-align: center;
  max-width: 700px;
  margin-inline: auto;
  margin-bottom: var(--space-3xl);
}

.section-header p {
  color: var(--color-sage);
  font-size: var(--text-lg);
  margin-top: var(--space-md);
}

/* Breadcrumbs */
.breadcrumbs {
  padding-block: var(--space-md);
}

.breadcrumbs__list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: var(--text-sm);
}

.breadcrumbs__item {
  display: flex;
  align-items: center;
}

.breadcrumbs__sep {
  display: inline-flex;
  align-items: center;
  margin-inline: var(--space-xs);
  color: var(--color-primary-mid);
  opacity: 0.5;
}

.breadcrumbs__link {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumbs__link:hover {
  color: var(--color-deep);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.breadcrumbs__current {
  color: var(--color-sage);
}

/* Responsive */
@media (max-width: 1024px) {
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    padding-inline: var(--space-lg);
  }

  .section {
    padding-block: var(--space-3xl);
  }

  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }

  .grid--4 {
    grid-template-columns: 1fr;
  }

  .split {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .split--reverse {
    direction: ltr;
  }
}
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 14px 32px;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  text-decoration: none;
  line-height: 1;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn--primary:hover {
  background-color: var(--color-deep);
  color: var(--color-white);
}

.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  padding: 12px 30px;
}

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

.btn--outline-white {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
  padding: 12px 30px;
}

.btn--outline-white:hover {
  background: var(--color-white);
  color: var(--color-deep);
}

.btn--sand {
  background-color: var(--color-sand);
  color: var(--color-deep);
}

.btn--sand:hover {
  background-color: var(--color-earth);
  color: var(--color-white);
}

.btn--sm {
  font-size: var(--text-sm);
  padding: 10px 20px;
}

.btn--lg {
  font-size: var(--text-lg);
  padding: 18px 40px;
  position: relative;
  overflow: visible;
  transition: background-color var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
}

/* ── Pipe T-valve hover (large CTAs only) ── */
/* Branch extends from right side, above and below the button */

.btn--lg::after {
  content: '';
  position: absolute;
  right: -8px;
  top: 50%;
  width: 20px;
  height: calc(100% + 48px);
  background: var(--_pipe-color, var(--color-deep));
  border-radius: 4px;
  transform: translateY(-50%) scaleY(0);
  opacity: 0;
  transition: transform 300ms cubic-bezier(0.34, 1.56, 0.64, 1), opacity 200ms ease;
  pointer-events: none;
}

.btn--lg:hover::after {
  transform: translateY(-50%) scaleY(1);
  opacity: 1;
}

/* T-valve color per button variant */
.btn--outline-white.btn--lg { --_pipe-color: var(--color-white); }
.btn--secondary.btn--lg { --_pipe-color: var(--color-primary); }
.btn--sand.btn--lg { --_pipe-color: var(--color-earth); }

/* No pipe on small buttons */
.btn--sm::after {
  content: none;
}

/* Cards */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-bg-alt);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background-color: var(--color-bg-alt);
}

.card__body {
  padding: var(--space-lg);
}

.card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.card__text {
  color: var(--color-sage);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.card__meta {
  font-size: var(--text-xs);
  color: var(--color-primary-mid);
  font-weight: 500;
  margin-top: var(--space-md);
}

/* Badge */
.badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge--popular {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* Spec table */
.spec-table {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.spec-table tr:nth-child(even) {
  background-color: var(--color-bg-alt);
}

.spec-table td {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
}

.spec-table td:first-child {
  font-weight: 600;
  color: var(--color-deep);
  width: 40%;
}

.spec-table td:last-child {
  color: var(--color-sage);
}

/* Stat card */
.stat {
  text-align: center;
  padding: var(--space-xl);
}

.stat__number {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  color: var(--color-primary-light);
  line-height: 1;
  margin-bottom: var(--space-sm);
  white-space: nowrap;
}

.stat__label {
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-sage);
}

.section--dark .stat__label {
  color: rgba(255, 255, 255, 0.7);
}

/* USP card */
.usp-card {
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
}

.usp-card__icon {
  width: 64px;
  height: 64px;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
  color: var(--color-primary);
}

.usp-card__icon svg {
  width: 100%;
  height: 100%;
}

.usp-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.usp-card__text {
  font-size: var(--text-sm);
  color: var(--color-sage);
  line-height: 1.6;
}

/* Accordion (FAQ) */
.accordion {
  max-width: var(--container-narrow);
  margin-inline: auto;
}

.accordion__item {
  background: var(--color-white);
  border: 1px solid var(--color-bg-alt);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.accordion__item:hover {
  box-shadow: var(--shadow-sm);
}

.accordion__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  width: 100%;
  padding: var(--space-lg) var(--space-xl);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-deep);
  transition: color var(--transition-fast);
}

[dir="rtl"] .accordion__header {
  text-align: right;
}

.accordion__header:hover {
  color: var(--color-primary);
}

.accordion__header[aria-expanded="true"] {
  color: var(--color-primary);
}

.accordion__icon {
  flex-shrink: 0;
  transition: transform var(--transition-base);
  color: var(--color-primary-mid);
}

.accordion__header[aria-expanded="true"] .accordion__icon {
  transform: rotate(180deg);
}

.accordion__body {
  overflow: hidden;
}

.accordion__body[hidden] {
  display: none;
}

.accordion__content {
  padding: 0 var(--space-xl) var(--space-xl);
  color: var(--color-sage);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.accordion__content p {
  margin-bottom: var(--space-md);
}

.accordion__content p:last-child {
  margin-bottom: 0;
}

.accordion__content ul {
  padding-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

[dir="rtl"] .accordion__content ul {
  padding-left: 0;
  padding-right: var(--space-lg);
}

.accordion__content ul:last-child {
  margin-bottom: 0;
}

.accordion__content li {
  margin-bottom: var(--space-xs);
}

.accordion__content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.accordion__content a:hover {
  color: var(--color-deep);
}

/* Reference card */
.reference-card {
  background: var(--color-white);
  border: 1px solid var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.reference-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.reference-card--dark {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.1);
}

.reference-card--dark:hover {
  background: rgba(255, 255, 255, 0.08);
  box-shadow: none;
}

.reference-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

.reference-card__icon svg {
  width: 100%;
  height: 100%;
}

.reference-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.reference-card--dark .reference-card__title {
  color: var(--color-white);
}

.reference-card__text {
  font-size: var(--text-sm);
  color: var(--color-sage);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.reference-card__text a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.reference-card__specs {
  list-style: none;
  padding: 0;
  font-size: var(--text-sm);
  color: var(--color-sage);
}

.reference-card__specs li {
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--color-bg-alt);
}

.reference-card__specs li:last-child {
  border-bottom: none;
}

.reference-card__list {
  list-style: none;
  padding: 0;
}

.reference-card__list li {
  padding: var(--space-xs) 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-sm);
}

/* Form elements */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-deep);
  margin-bottom: var(--space-xs);
}

.form-label .required {
  color: var(--color-error);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  font-size: var(--text-base);
  color: var(--color-deep);
  background: var(--color-white);
  border: 1px solid var(--color-bg-alt);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(61, 107, 99, 0.15);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Form validation error */
.form-error {
  color: var(--color-error);
  font-size: var(--text-xs);
  margin-top: 4px;
  display: block;
}

.form-input--error {
  border-color: var(--color-error);
}

/* Form status messages */
.form-status {
  display: none;
  margin-top: var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
}

.form-status.is-visible {
  display: block;
  animation: fadeIn 300ms ease;
}

.form-status--success {
  background-color: rgba(39, 174, 96, 0.1);
  border: 1px solid var(--color-success);
  color: var(--color-success);
}

.form-status--error {
  background-color: rgba(192, 57, 43, 0.1);
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  padding-inline: var(--space-xl);
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

/* Transparent state (on hero) */
.nav--transparent {
  background-color: transparent;
}

/* Solid state (on scroll) */
.nav--solid {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-wide);
  margin-inline: auto;
}

/* Logo */
.nav__logo {
  flex-shrink: 0;
}

.nav__logo img {
  height: 100px;
  width: auto;
  transition: opacity var(--transition-fast);
}

.nav__logo-light {
  display: block;
}

.nav__logo-dark {
  display: none;
}

.nav--solid .nav__logo-light {
  display: none;
}

.nav--solid .nav__logo-dark {
  display: block;
}

/* Desktop nav links */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-white);
  text-decoration: none;
  position: relative;
  padding-block: var(--space-xs);
  transition: color var(--transition-fast);
}

.nav--solid .nav__link {
  color: var(--color-deep);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-primary-light);
}

.nav--solid .nav__link:hover,
.nav--solid .nav__link--active {
  color: var(--color-primary);
}

/* Active indicator */
.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: currentColor;
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.nav__link:hover::after,
.nav__link--active::after {
  transform: scaleX(1);
}

/* Nav CTA */
.nav__cta {
  margin-left: var(--space-lg);
}

.nav--transparent .nav__cta .btn {
  background-color: transparent;
  border: 2px solid var(--color-white);
  color: var(--color-white);
}

.nav--transparent .nav__cta .btn:hover {
  background-color: var(--color-white);
  color: var(--color-deep);
}

/* Language switch */
.lang-switch {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-left: var(--space-lg);
}

.lang-switch__link {
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav--solid .lang-switch__link {
  color: var(--color-sage);
}

.lang-switch__link:hover {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.1);
}

.nav--solid .lang-switch__link:hover {
  color: var(--color-primary);
  background-color: var(--color-bg-alt);
}

.lang-switch__active {
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 4px 6px;
  color: var(--color-white);
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.15);
}

.nav--solid .lang-switch__active {
  color: var(--color-primary);
  background-color: var(--color-bg-alt);
}

.lang-switch__sep {
  color: rgba(255, 255, 255, 0.3);
  font-size: var(--text-xs);
  user-select: none;
}

.nav--solid .lang-switch__sep {
  color: var(--color-bg-alt);
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 30px;
  height: 30px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: calc(var(--z-overlay) + 1);
}

.nav__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.nav--solid .nav__hamburger span {
  background-color: var(--color-deep);
}

/* Hamburger active (X) */
.nav__hamburger--active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background-color: var(--color-white);
}

.nav__hamburger--active span:nth-child(2) {
  opacity: 0;
}

.nav__hamburger--active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background-color: var(--color-white);
}

/* Mobile menu overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background-color: var(--color-dark-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
  backdrop-filter: blur(10px);
}

.mobile-menu--open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__link {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--color-white);
  text-decoration: none;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-base), transform var(--transition-base), color var(--transition-fast);
}

.mobile-menu--open .mobile-menu__link {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu__link:hover {
  color: var(--color-primary-light);
}

/* Staggered animation */
.mobile-menu--open .mobile-menu__link:nth-child(1) { transition-delay: 100ms; }
.mobile-menu--open .mobile-menu__link:nth-child(2) { transition-delay: 150ms; }
.mobile-menu--open .mobile-menu__link:nth-child(3) { transition-delay: 200ms; }
.mobile-menu--open .mobile-menu__link:nth-child(4) { transition-delay: 250ms; }
.mobile-menu--open .mobile-menu__link:nth-child(5) { transition-delay: 300ms; }
.mobile-menu--open .mobile-menu__link:nth-child(6) { transition-delay: 350ms; }
.mobile-menu--open .mobile-menu__link:nth-child(7) { transition-delay: 400ms; }

.mobile-menu__lang {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

/* Responsive */
@media (max-width: 1024px) {
  .nav__links,
  .nav__cta,
  .nav .lang-switch {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }
}
/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--color-dark-bg);
}

/* Video / Image background */
.hero__media {
  position: absolute;
  inset: 0;
  z-index: var(--z-base);
}

.hero__video,
.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Ken Burns effect for static image placeholder */
.hero__image {
  animation: kenBurns 20s ease-in-out infinite alternate;
}

@keyframes kenBurns {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.08);
  }
}

/* Gradient overlay */
.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to bottom,
    rgba(10, 26, 23, 0.7) 0%,
    rgba(10, 26, 23, 0.4) 50%,
    rgba(10, 26, 23, 0.8) 100%
  );
}

/* Hero content */
.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: var(--space-xl);
  padding-top: var(--nav-height);
}

.hero__title {
  font-family: var(--font-heading);
  font-size: var(--text-5xl);
  color: var(--color-white);
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeUp 1s ease-out 0.3s forwards;
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.9);
  max-width: 700px;
  margin-inline: auto;
  margin-bottom: var(--space-2xl);
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeUp 1s ease-out 0.6s forwards;
}

.hero__buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeUp 1s ease-out 0.9s forwards;
}

@keyframes heroFadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  animation: scrollBounce 2s ease-in-out infinite;
}

.hero__scroll-arrow {
  width: 20px;
  height: 20px;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

/* Page hero (inner pages) */
.hero-page {
  position: relative;
  padding: calc(var(--nav-height) + var(--space-4xl)) 0 var(--space-3xl);
  background-color: var(--color-dark-bg);
  color: var(--color-white);
  text-align: center;
  overflow: hidden;
}

.hero-page__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.15;
}

.hero-page__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-page__content {
  position: relative;
  z-index: 1;
}

.hero-page h1 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.hero-page p {
  color: var(--color-primary-light);
  font-size: var(--text-lg);
  max-width: 600px;
  margin-inline: auto;
}

/* Responsive */
@media (max-width: 768px) {
  .hero__title {
    font-size: var(--text-3xl);
  }

  .hero__subtitle {
    font-size: var(--text-base);
  }

  .hero__buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero__scroll {
    display: none;
  }
}
/* Footer */
.footer {
  background-color: var(--color-dark-bg);
  color: var(--color-primary-light);
  padding: var(--space-4xl) 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-3xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Company column */
.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer__logo img {
  height: 140px;
  width: auto;
}

.footer__tagline {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

/* Column titles */
.footer__title {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-lg);
}

/* Links */
.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__link {
  font-size: var(--text-sm);
  color: var(--color-primary-light);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-white);
}

/* Contact info */
.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  font-size: var(--text-sm);
}

.footer__contact-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-sand);
}

.footer__contact-link {
  color: var(--color-white);
  font-size: var(--text-lg);
  font-weight: 600;
}

.footer__contact-link:hover {
  color: var(--color-sand);
}

/* Bottom bar */
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) 0;
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.4);
}

.footer__social {
  display: flex;
  gap: var(--space-md);
}

.footer__social-link {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--color-primary-light);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.footer__social-link:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.footer__social-link svg {
  width: 16px;
  height: 16px;
}

/* Holding family badge */
.footer__holding {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: rgba(255, 255, 255, 0.4);
  text-decoration: none;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

.footer__holding:hover {
  color: rgba(255, 255, 255, 0.7);
  opacity: 0.9;
}

.footer__holding span {
  font-size: var(--text-xs);
  font-weight: 350;
  color: var(--color-white);
  white-space: nowrap;
}

.footer__holding img {
  height: 120px;
  width: auto;
}

/* Responsive */
@media (max-width: 1024px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}
/* Product Cards */
.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

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

.product-card__badge {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
}

.product-card__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  margin-bottom: var(--space-md);
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.product-card:hover .product-card__image img {
  transform: scale(1.05);
}

.product-card__diameter {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.product-card__name {
  font-size: var(--text-sm);
  color: var(--color-sage);
  margin-bottom: var(--space-md);
}

.product-card__specs {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-top: auto;
}

.product-card__spec {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-sm);
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--color-bg-alt);
}

.product-card__spec-label {
  color: var(--color-sage);
}

.product-card__spec-value {
  font-weight: 600;
  color: var(--color-deep);
  text-align: right;
}

.product-card__cta {
  margin-top: var(--space-lg);
  text-align: center;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.product-card:hover .product-card__cta {
  opacity: 1;
  transform: translateY(0);
}

/* Products grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-xl);
}

/* Weight comparison bar */
.weight-bar {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.weight-bar__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
}

.weight-bar__fill {
  height: 8px;
  border-radius: var(--radius-full);
  transition: width 1s ease-out;
}

.weight-bar__fill--irrigo {
  background-color: var(--color-primary);
}

.weight-bar__fill--steel {
  background-color: var(--color-earth);
}

.weight-bar__label {
  white-space: nowrap;
  font-weight: 500;
}

/* System recommendations */
.system-rec {
  padding: var(--space-xl);
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  margin-top: var(--space-2xl);
}

.system-rec__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.system-rec__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
}

.system-rec__item {
  padding: var(--space-md);
  background: var(--color-white);
  border-radius: var(--radius-md);
  text-align: center;
}

.system-rec__area {
  font-weight: 600;
  color: var(--color-deep);
  margin-bottom: var(--space-xs);
}

.system-rec__pipes {
  font-size: var(--text-sm);
  color: var(--color-sage);
}
/* Blog listing */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

/* Blog card */
.blog-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-bg-alt);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  text-decoration: none;
  display: block;
}

.blog-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.blog-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-bg-alt);
}

.blog-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.blog-card:hover .blog-card__image img {
  transform: scale(1.05);
}

.blog-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-card__body {
  padding: var(--space-lg);
}

.blog-card__meta {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-primary-mid);
  font-style: italic;
  margin-bottom: var(--space-sm);
}

.blog-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-deep);
  line-height: 1.3;
  margin-bottom: var(--space-sm);
}

.blog-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-sage);
  line-height: 1.6;
}

.blog-card__read-more {
  display: inline-block;
  margin-top: var(--space-md);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
}

/* Blog article */
.article {
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-block: var(--space-3xl);
}

.article__header {
  margin-bottom: var(--space-2xl);
}

.article__featured-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-lg);
}

.article__featured-image img {
  width: 100%;
  height: auto;
  display: block;
}

.article__meta {
  font-size: var(--text-sm);
  color: var(--color-primary-mid);
  margin-bottom: var(--space-md);
}

.article__reading-time {
  color: var(--color-sage);
}

/* Share buttons */
.share-buttons {
  display: flex;
  gap: var(--space-sm);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-bg-alt);
  margin-top: var(--space-2xl);
}

.share-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.share-btn:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}
/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for grouped elements */
.reveal[data-delay="1"] { transition-delay: 60ms; }
.reveal[data-delay="2"] { transition-delay: 120ms; }
.reveal[data-delay="3"] { transition-delay: 180ms; }
.reveal[data-delay="4"] { transition-delay: 240ms; }
.reveal[data-delay="5"] { transition-delay: 300ms; }

/* Slide in from left/right */
.reveal--left {
  opacity: 0;
  transform: translateX(-16px);
}

.reveal--right {
  opacity: 0;
  transform: translateX(16px);
}

.reveal--left.reveal--visible,
.reveal--right.reveal--visible {
  opacity: 1;
  transform: translateX(0);
}

/* Scale up */
.reveal--scale {
  opacity: 0;
  transform: scale(0.97);
}

.reveal--scale.reveal--visible {
  opacity: 1;
  transform: scale(1);
}

/* Hover effects */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

/* Pulse */
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Fade in */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

/* Counter animation placeholder - enhanced by GSAP */
.counter {
  display: inline-block;
}
/* Text alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Text colors */
.text-primary { color: var(--color-primary); }
.text-deep { color: var(--color-deep); }
.text-sage { color: var(--color-sage); }
.text-white { color: var(--color-white); }
.text-sand { color: var(--color-sand); }
.text-light { color: var(--color-primary-light); }

/* Background colors */
.bg-primary { background-color: var(--color-primary); }
.bg-dark { background-color: var(--color-dark-bg); }
.bg-white { background-color: var(--color-white); }
.bg-alt { background-color: var(--color-bg-alt); }
.bg-sand { background-color: var(--color-sand); }

/* Spacing */
.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

/* Visibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.hidden { display: none !important; }

@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
}

@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}

/* Font weight */
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 600; }

/* Uppercase */
.uppercase {
  text-transform: uppercase;
  letter-spacing: 0.08em;
}