/* ══════════════════════════════════════
   ENERGOMET — Design System
   ══════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Hubot+Sans:ital,wght@0,200..900;1,200..900&family=Work+Sans:ital,wght@0,100..900;1,100..900&display=swap');

/* ─── TOKENS ─── */
:root {
  /* Colors */
  --color-dark:        #1c1b1a;
  --color-accent:      #caccb0;
  --color-light:       #fafafa;
  --color-white:       #ffffff;
  --color-text-dark:   #030213;

  /* Opacity variants */
  --color-dark-90:     rgba(28, 27, 26, 0.9);
  --color-dark-80:     rgba(28, 27, 26, 0.8);
  --color-dark-70:     rgba(28, 27, 26, 0.7);
  --color-dark-50:     rgba(28, 27, 26, 0.5);
  --color-accent-50:   rgba(202, 204, 176, 0.5);
  --color-accent-30:   rgba(202, 204, 176, 0.3);
  --color-accent-20:   rgba(202, 204, 176, 0.2);
  --color-accent-10:   rgba(202, 204, 176, 0.1);
  --color-accent-05:   rgba(202, 204, 176, 0.05);

  /* Typography */
  --font-heading:      'Hubot Sans', ui-sans-serif, system-ui, sans-serif;
  --font-sans:         'Work Sans', ui-sans-serif, system-ui, sans-serif;

  /* Spacing */
  --container-max:     100rem;
  --container-px:      1rem;
  --section-py:        6rem;
  --section-py-md:     8rem;
  --section-py-lg:     12rem;

  /* Transitions */
  --transition-fast:   200ms ease-out;
  --transition-base:   300ms ease-out;
  --transition-slow:   500ms ease-out;
  --transition-smooth: 500ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-card:       0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-elevated:   0 25px 50px -12px rgba(0,0,0,0.25);
  --shadow-accent:     0 10px 20px rgba(202, 204, 176, 0.15);
}


/* ─── BASE ─── */
* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  line-height: 1.4em;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  letter-spacing: 0;
  text-transform: uppercase;
}

::selection {
  background-color: var(--color-accent);
  color: var(--color-dark);
}


/* ═══════════════════════════════════════
   LAYOUT COMPONENTS
   ═══════════════════════════════════════ */

/* Container */
.container-site {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
}
@media (min-width: 768px) {
  :root { --container-px: 1.5rem; }
}

/* Section bases */
.section {
  position: relative;
  padding-top: var(--section-py);
  padding-bottom: var(--section-py);
  overflow: hidden;
}
@media (min-width: 768px) {
  .section { padding-top: var(--section-py-md); padding-bottom: var(--section-py-md); }
}
@media (min-width: 1024px) {
  .section-lg { padding-top: var(--section-py-lg); padding-bottom: var(--section-py-lg); }
}

.section-dark { background-color: var(--color-dark); }
.section-light { background-color: var(--color-light); }
.section-accent { background-color: var(--color-accent); }

/* CTA section (smaller padding) */
.section-cta {
  position: relative;
  padding-top: 4rem;
  padding-bottom: 4rem;
}
@media (min-width: 768px) {
  .section-cta { padding-top: 6rem; padding-bottom: 6rem; }
}

/* Page hero (with top offset for fixed header) */
.page-hero {
  position: relative;
  padding-top: 8rem;
  padding-bottom: 8rem;
  margin-top: 4rem;
  overflow: hidden;
}
@media (min-width: 768px) {
  .page-hero { padding-top: 12rem; padding-bottom: 12rem; }
}

/* Hero background image + overlay pattern */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-color: var(--color-dark-80);
}

.hero-content {
  position: relative;
  z-index: 2;
}


/* ═══════════════════════════════════════
   TYPOGRAPHY COMPONENTS
   ═══════════════════════════════════════ */

/* Section label (small uppercase text above heading) */
.section-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.section-label-dark,
.section-label-light,
.section-label-accent {
  display: block;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
@media (min-width: 768px) {
  .section-label,
  .section-label-dark,
  .section-label-light,
  .section-label-accent { font-size: 14px; }
}
.section-label-dark   { color: var(--color-accent-50); }
.section-label-light  { color: rgba(28, 27, 26, 0.4); }
.section-label-accent { color: rgba(28, 27, 26, 0.5); }

/* Headings */
.heading-hero {
  font-size: 1.875rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}
@media (min-width: 768px) {
  .heading-hero { font-size: 4.5rem; }
}

.heading-section {
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}
@media (min-width: 768px) {
  .heading-section { font-size: 3rem; }
}

.heading-subsection {
  font-size: 1.875rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}
@media (min-width: 768px) {
  .heading-subsection { font-size: 2.25rem; }
}

.heading-card {
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 0.75rem;
}

/* Heading color modifiers */
.text-on-dark    { color: var(--color-white); }
.text-on-light   { color: var(--color-dark); }
.text-on-accent  { color: var(--color-dark); }
.text-accent     { color: var(--color-accent); }

/* Body text */
.text-body-dark  { color: #9ca3af; line-height: 1.4em; margin-bottom: 2rem; }       /* gray-400 on dark bg */
.text-body-light { color: rgba(28,27,26,0.6); line-height: 1.4em; margin-bottom: 2rem; } /* dark/60 on light bg */
.text-body-muted { color: #6b7280; }       /* gray-500 */

.text-lead {
  font-size: 1.125rem;
  line-height: 1.4em;
  max-width: 36rem;
  margin-bottom: 2rem;
}
@media (min-width: 768px) {
  .text-lead { font-size: 1.25rem; }
}


/* ═══════════════════════════════════════
   BUTTON COMPONENTS
   ═══════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 12px 24px;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.025em;
  text-transform: uppercase;
  transition: all var(--transition-base);
  cursor: pointer;
  text-decoration: none;
  border: none;
  line-height: 1.5;
}

.btn:hover {
  transform: scale(1.05);
}

/* Primary: accent bg, dark text */
.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-dark);
}
.btn-primary:hover {
  background-color: var(--color-white);
  box-shadow: var(--shadow-elevated);
}

/* Secondary: transparent, accent border */
.btn-secondary {
  background-color: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}
.btn-secondary:hover {
  background-color: var(--color-accent-10);
}

/* Dark: dark bg, accent text */
.btn-dark {
  background-color: var(--color-dark);
  color: var(--color-accent);
}
.btn-dark:hover {
  background-color: var(--color-dark-90);
}

/* Outline on dark bg */
.btn-outline-accent {
  background-color: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent-30);
}
.btn-outline-accent:hover {
  background-color: var(--color-accent-10);
}

/* Large button (hero) */
.btn-lg {
  padding: 14px 32px;
  font-size: 15px;
}

/* Full width on mobile */
@media (max-width: 767px) {
  .btn-full-mobile { width: 100%; }
}


/* ═══════════════════════════════════════
   CARD COMPONENTS
   ═══════════════════════════════════════ */

/* Base card on dark bg */
.card-dark {
  background-color: var(--color-accent-05);
  border: 1px solid var(--color-accent-10);
  transition: all var(--transition-base);
}
.card-dark:hover {
  border-color: var(--color-accent-30);
  transform: translateY(-0.5rem);
}

/* Card on light bg */
.card-light {
  background-color: var(--color-white);
  border: 1px solid rgba(28, 27, 26, 0.05);
  transition: all var(--transition-base);
}
.card-light:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-0.25rem);
}

/* Feature card (bordered, no bg) */
.card-feature {
  border: 1px solid var(--color-accent-10);
  padding: 1.5rem;
  transition: all var(--transition-base);
}
.card-feature:hover {
  border-color: var(--color-accent-30);
}

/* Stat card */
.card-stat {
  border: 1px solid var(--color-accent-10);
  padding: 1.5rem;
  transition: border-color var(--transition-base);
}
.card-stat:hover {
  border-color: var(--color-accent-30);
}

/* Stat number */
.stat-number {
  font-size: 2.25rem;
  font-weight: 600;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.5rem;
}
@media (min-width: 768px) {
  .stat-number { font-size: 3rem; }
}

.stat-label {
  font-size: 0.875rem;
  color: #9ca3af;
  font-weight: 500;
}


/* ═══════════════════════════════════════
   ICON COMPONENTS
   ═══════════════════════════════════════ */

/* Icon box (small square with bg) */
.icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem;
  background-color: var(--color-accent-10);
  width: fit-content;
}

.icon-box-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem;
  background-color: var(--color-dark);
  width: fit-content;
}

.icon-box-sm {
  padding: 0.5rem;
}

/* Icon colors */
.icon-accent { color: var(--color-accent); }
.icon-dark   { color: var(--color-dark); }


/* ═══════════════════════════════════════
   NAVIGATION COMPONENTS
   ═══════════════════════════════════════ */

/* Nav link */
.nav-link {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-white);
  transition: color var(--transition-fast);
  padding: 0.5rem 0;
  text-decoration: none;
}
.nav-link:hover { color: var(--color-accent); }

/* Contact CTA in nav */
.nav-cta {
  position: relative;
  padding: 0.625rem 1.5rem;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-accent);
  transition: color var(--transition-smooth);
  overflow: hidden;
  text-decoration: none;
}
.nav-cta:hover { color: var(--color-dark); }

.nav-cta-border {
  position: absolute;
  inset: 0;
  border: 1px solid var(--color-accent-50);
  transition: border-color var(--transition-base);
}
.nav-cta:hover .nav-cta-border { border-color: transparent; }

.nav-cta-fill {
  position: absolute;
  inset: 0;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-smooth);
  z-index: -1;
}
.nav-cta:hover .nav-cta-fill {
  transform: scaleX(1);
  transform-origin: left;
}

/* Dropdown */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 0.5rem;
  width: 16rem;
  background-color: var(--color-dark);
  border: 1px solid var(--color-accent-20);
  box-shadow: var(--shadow-elevated);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 50;
}
.group:hover > .dropdown-menu {
  opacity: 1;
  visibility: visible;
}

.dropdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 500;
  color: #d1d5db;
  border-bottom: 1px solid var(--color-accent-10);
  transition: all var(--transition-fast);
  text-decoration: none;
}
.dropdown-item:last-child { border-bottom: none; }
.dropdown-item:hover {
  color: var(--color-accent);
  background-color: var(--color-accent-10);
}

.dropdown-dot {
  width: 0.5rem;
  height: 0.5rem;
  background-color: var(--color-accent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.dropdown-item:hover .dropdown-dot { opacity: 1; }


/* ═══════════════════════════════════════
   FOOTER COMPONENTS
   ═══════════════════════════════════════ */

.footer-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  color: #9ca3af;
  font-weight: 500;
  transition: color var(--transition-base);
  width: fit-content;
  text-decoration: none;
}
.footer-link:hover { color: var(--color-accent); }

.footer-link-line {
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}
.footer-link:hover .footer-link-line { width: 1.5rem; }

.footer-link-text {
  transition: transform var(--transition-base);
}
.footer-link:hover .footer-link-text { transform: translateX(0.25rem); }

/* Social icon */
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  border: 1px solid var(--color-accent-20);
  color: var(--color-accent);
  transition: all var(--transition-base);
  text-decoration: none;
}
.social-icon:hover {
  background-color: var(--color-accent);
  color: var(--color-dark);
  border-color: var(--color-accent);
  transform: translateY(-0.5rem);
  box-shadow: var(--shadow-accent);
}

/* Contact block in footer */
.footer-contact {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  cursor: pointer;
  text-decoration: none;
}

.footer-contact-icon {
  padding: 0.75rem;
  background-color: var(--color-accent-10);
  border: 1px solid var(--color-accent-10);
  transition: background-color var(--transition-base);
}
.footer-contact:hover .footer-contact-icon {
  background-color: var(--color-accent-20);
}

.footer-contact-text {
  font-weight: 500;
  color: #d1d5db;
  transition: color var(--transition-base);
  padding-top: 0.25rem;
}
.footer-contact:hover .footer-contact-text { color: var(--color-white); }

/* Watermark */
.watermark {
  font-size: 14vw;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 2px rgba(202, 204, 176, 0.08);
  pointer-events: none;
  user-select: none;
}
.footer-watermark-fit {
  display: block;
  width: 100%;
  white-space: nowrap;
  font-size: 14vw; /* JS overrides this */
}


/* ═══════════════════════════════════════
   IMAGE COMPONENTS
   ═══════════════════════════════════════ */

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

.img-hover-zoom {
  transition: transform 700ms ease-out;
}
.group:hover .img-hover-zoom {
  transform: scale(1.05);
}

/* Image with gradient overlay */
.img-gradient-bottom::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--color-dark) 0%, rgba(28,27,26,0.4) 50%, transparent 100%);
}


/* ═══════════════════════════════════════
   LIST COMPONENTS
   ═══════════════════════════════════════ */

/* Check list item */
.check-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: #d1d5db;
}

/* Feature list item (icon + title + text) */
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--color-accent-10);
  transition: border-color var(--transition-base);
}
.feature-item:hover {
  border-color: var(--color-accent-20);
}


/* ═══════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════ */

/* Subpage hero glass card */
.subpage-hero-wrapper {
  padding: 8rem 1.5rem 3rem;
}
.subpage-glass {
  padding: 2rem 1.5rem;
  overflow: hidden;
  word-wrap: break-word;
  overflow-wrap: break-word;
}
@media (min-width: 768px) {
  .subpage-hero-wrapper { padding: 6rem 1.5rem; }
  .subpage-glass { padding: 3rem 3.5rem; }
}

/* Slow zoom on full-width background photos */
.biz-photo-zoom {
  animation: biz-slow-zoom 20s ease-out forwards;
}
@keyframes biz-slow-zoom {
  0% { transform: scale(1); }
  100% { transform: scale(1.08); }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}


/* ═══════════════════════════════════════
   PROSE (content from editor)
   ═══════════════════════════════════════ */

.prose-invert p    { color: #9ca3af; }
.prose-invert a    { color: var(--color-accent); text-decoration: underline; text-underline-offset: 4px; }
.prose-invert a:hover { color: var(--color-white); }
.prose-invert strong { color: var(--color-white); }
.prose-invert h2,
.prose-invert h3   { color: var(--color-white); }
.prose-invert ul li::marker { color: var(--color-accent); }


/* ═══════════════════════════════════════
   UTILITIES
   ═══════════════════════════════════════ */

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Divider line */
.divider-accent {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-accent-30), transparent);
}

/* Border accent variants */
.border-accent-10 { border-color: var(--color-accent-10); }
.border-accent-20 { border-color: var(--color-accent-20); }
.border-accent-30 { border-color: var(--color-accent-30); }


/* ─── STATS HERO BAR (overlapping hero bottom) ─── */
.stats-hero-bar {
  margin-top: -65px;
}

/* ─── BIZ TILES (Dla Biznesu — sticky stacking) ─── */
.section-has-sticky {
  overflow: visible;
  z-index: 30 !important;
}
.biz-tiles-scroll {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.biz-tile-sticky {
  position: relative;
}
@media (min-width: 768px) {
  .biz-tile-sticky {
    position: sticky;
    top: 300px;
  }
}


/* ─── MASONRY GALLERY ─── */
.masonry-gallery {
  display: flex;
  gap: 0.75rem;
}
.masonry-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.masonry-item {
  overflow: hidden;
  cursor: pointer;
  break-inside: avoid;
}
.masonry-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}
.masonry-item:hover img {
  transform: scale(1.05);
}


/* ─── LIGHTBOX ─── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.lightbox.active {
  opacity: 1;
  visibility: visible;
}
.lightbox-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
}
.lightbox-content {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  display: block;
}
.lightbox-close {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: white;
  font-size: 2.5rem;
  cursor: pointer;
  z-index: 10;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.lightbox-close:hover { opacity: 1; }
.lightbox-prev,
.lightbox-next {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: background 0.2s;
}
.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255, 255, 255, 0.2);
}
.lightbox-prev { left: 1.5rem; }
.lightbox-next { right: 1.5rem; }


/* ─── KARIERA POPUP ─── */
.kariera-popup {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.kariera-popup.active {
  opacity: 1;
  visibility: visible;
}
.kariera-popup-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
}
.kariera-popup-panel {
  position: relative;
  z-index: 1;
  background: var(--color-light);
  width: 90vw;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.5rem;
}
.kariera-popup-close {
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--color-dark);
  cursor: pointer;
  opacity: 0.4;
  transition: opacity 0.2s;
  line-height: 1;
}
.kariera-popup-close:hover { opacity: 1; }
.kariera-input {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(0, 0, 0, 0.1);
  background: white;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--color-text-dark);
  transition: border-color 0.2s;
  outline: none;
}
.kariera-input:focus {
  border-color: var(--color-dark);
}
.kariera-input::placeholder {
  color: rgba(0, 0, 0, 0.25);
}
textarea.kariera-input { resize: vertical; }
.kariera-dropzone {
  border: 2px dashed rgba(0, 0, 0, 0.12);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.kariera-dropzone:hover,
.kariera-dropzone.dragover {
  border-color: var(--color-dark);
  background: rgba(0, 0, 0, 0.02);
}
.kariera-dropzone.has-file {
  border-color: var(--color-accent);
  background: rgba(202, 204, 176, 0.08);
}


/* ═══════════════════════════════════════
   WORDPRESS FIXES
   ═══════════════════════════════════════ */

body.admin-bar #site-header { top: 32px; }
@media (max-width: 782px) {
  body.admin-bar #site-header { top: 46px; }
}

body.overflow-hidden { overflow: hidden; }

/* ═══════════════════════════════════════
   MOBILE MENU — expands inside header
   ═══════════════════════════════════════ */
:root {
  interpolate-size: allow-keywords;
}
.mobile-menu {
  height: 0;
  overflow: hidden;
  opacity: 0;
  transition: height 500ms cubic-bezier(0.4, 0, 0.2, 1),
              opacity 300ms ease-out;
}
.mobile-menu.is-open {
  height: auto;
  opacity: 1;
}
/* Fallback for browsers without interpolate-size: at least make it appear */
@supports not (interpolate-size: allow-keywords) {
  .mobile-menu { max-height: 0; height: auto; transition: max-height 500ms cubic-bezier(0.4, 0, 0.2, 1), opacity 300ms ease-out; }
  .mobile-menu.is-open { max-height: 100vh; }
}


/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-dark); }
::-webkit-scrollbar-thumb { background: var(--color-accent); border-radius: 0; }
::-webkit-scrollbar-thumb:hover { background: var(--color-white); }