/*
Theme Name: Hokus Visuals
Theme URI: https://hokusvisualscom.local
Author: Andrzej
Description: Custom light, minimal portfolio motyw dla artysty 3D w odcieniach szarości — renderowania wizualizacji architektonicznych i produktowych. Zbudowany bez zbędnych zależności/pluginów.
Version: 1.32
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: hokus
*/

/* ==========================================================================
   1. RESET / BASE
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --color-bg: #fafaf9;
  --color-bg-alt: #eeeeec;
  --color-fg: #1a1a1a;
  --color-fg-muted: #767674;
  --color-border: #e0e0dd;
  --color-accent: #1a1a1a;

  --font-heading: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;

  --container-max: 1400px;
  --gutter: clamp(1.25rem, 3vw, 3rem);

  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
}

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1em;
  color: var(--color-fg-muted);
}

button {
  font-family: inherit;
  cursor: pointer;
}

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px);
}

/* ==========================================================================
   2. HEADER / NAV
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20000;
  background: rgba(250, 250, 249, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.25rem;
}

.site-logo {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.primary-menu {
  display: flex;
  gap: 2.25rem;
}

.primary-menu a {
  position: relative;
  font-size: 0.9rem;
  color: var(--color-fg-muted);
  transition: color var(--transition-fast);
}

.primary-menu a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.primary-menu a:hover::after,
.primary-menu a.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.primary-menu a:hover,
.primary-menu a.is-active {
  color: var(--color-fg);
}

/* Hamburger — widoczny tylko na wąskich ekranach (patrz media query niżej). */
.mobile-nav-toggle {
  display: none;
  position: relative;
  width: 26px;
  height: 18px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  z-index: 110;
}

.mobile-nav-toggle span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-fg);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-nav-toggle span:nth-child(1) { top: 0; }
.mobile-nav-toggle span:nth-child(2) { top: 8px; }
.mobile-nav-toggle span:nth-child(3) { top: 16px; }

.mobile-nav-toggle.is-open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mobile-nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================================================
   3. HERO-INTRO — pełnoekranowa sekcja startowa z animowanym tłem
   ========================================================================== */

.hero-intro {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-intro__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hero-intro__content {
  position: relative;
  z-index: 1;
  padding: 0 var(--gutter);
  max-width: 900px;
}

.hero-intro__brand {
  display: inline-block;
  position: relative;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(2.75rem, 10vw, 7rem);
  line-height: 0.95;
  letter-spacing: -0.01em;
  white-space: nowrap;
  margin-bottom: 1.25rem;
  padding-inline: 0.05em;
}

/* Efekt "renderowania" — patrz hero-text-fx.js. Tekst startuje rozmazany
   (filtr blur ustawiany bezpośrednio z JS) i pokryty ziarnem, po czym
   stopniowo dochodzi do pełnej ostrości — jak progres w Corona/V-Ray. */
.hero-render-noise {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
  pointer-events: none;
}

.hero-intro__subline {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: clamp(0.9rem, 2vw, 1.05rem);
  color: var(--color-fg-muted);
  margin-bottom: 2.5rem;
}

.hero-intro__subline strong {
  color: var(--color-fg);
  font-weight: 500;
}

.hero-intro__cta {
  display: inline-block;
  background: var(--color-fg);
  color: var(--color-bg);
  padding: 1rem 2.75rem;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid var(--color-fg);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.hero-intro__cta:hover {
  background: transparent;
  color: var(--color-fg);
}

.hero-intro__scroll {
  position: absolute;
  left: 50%;
  bottom: clamp(1.5rem, 4vw, 2.5rem);
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.hero-intro__scroll span {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-fg-muted);
}

.hero-intro__scroll svg {
  width: 20px;
  height: 20px;
  color: var(--color-fg);
  animation: hokus-bounce 1.8s ease-in-out infinite;
}

@keyframes hokus-bounce {
  0%, 100% { transform: translateY(0); opacity: 0.4; }
  50% { transform: translateY(8px); opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-intro__scroll svg {
    animation: none;
  }
}

@media (max-width: 640px) {
  .hero-intro__brand {
    white-space: normal;
  }
}

/* Sekcja "Wybrane realizacje" pod hero — używa DOKŁADNIE tej samej siatki
   (.portfolio-grid / .portfolio-item) co reszta portfolio niżej, żeby
   uniknąć problemów z niedziałającym przy małej liczbie zdjęć układem
   mozaikowym. Prostota i spójność zamiast efektownego, ale kruchego collage. */

.featured-projects {
  padding-block: clamp(3rem, 6vw, 5rem) 0;
}

.featured-projects__eyebrow {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.8rem;
  color: var(--color-fg-muted);
  margin-bottom: 1.5rem;
}

.featured-projects__footer {
  display: flex;
  justify-content: center;
  padding-block: clamp(1.5rem, 3vw, 2.5rem) clamp(2.5rem, 5vw, 4rem);
}

.featured-projects__cta {
  display: inline-block;
  border: 1px solid var(--color-fg);
  padding: 0.85rem 2.25rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-fg);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.featured-projects__cta:hover {
  background: var(--color-fg);
  color: var(--color-bg);
}

/* ==========================================================================
   4. SHOWCASE — duże, naprzemienne bloki "Wybrane realizacje"
   ========================================================================== */

.showcase-list {
  display: flex;
  flex-direction: column;
}

.showcase-item {
  display: flex;
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  padding-block: clamp(2.5rem, 6vw, 5rem);
  border-bottom: 1px solid var(--color-border);
}

.showcase-item--reverse {
  flex-direction: row-reverse;
}

.showcase-item__media {
  display: block;
  flex: 1 1 60%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
}

.showcase-item__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.05) brightness(0.94);
  transition: transform 0.6s ease, filter 0.6s ease;
}

.showcase-item__media:hover img {
  transform: scale(1.04);
  filter: grayscale(0%) contrast(1) brightness(1);
}

.showcase-item__info {
  flex: 1 1 40%;
}

.showcase-item__index {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  color: var(--color-fg-muted);
  margin-bottom: 1rem;
}

.showcase-item__category {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  color: var(--color-fg-muted);
  margin-bottom: 0.75rem;
}

.showcase-item__title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  margin-bottom: 1.5rem;
}

.showcase-item__link {
  display: inline-block;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-fg);
  border-bottom: 1px solid var(--color-fg);
  padding-bottom: 0.25rem;
  transition: opacity var(--transition-fast);
}

.showcase-item__link:hover {
  opacity: 0.6;
}

/* Statystyka jako pełnoszerokościowy, wyróżniony pas przerywający rytm listy. */
.showcase-stat {
  text-align: center;
  padding-block: clamp(3rem, 7vw, 5rem);
  border-bottom: 1px solid var(--color-border);
}

.showcase-stat strong {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(3rem, 8vw, 5.5rem);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.showcase-stat span {
  display: block;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-fg-muted);
}

@media (max-width: 780px) {
  .showcase-item,
  .showcase-item--reverse {
    flex-direction: column;
    align-items: stretch;
    gap: 1.5rem;
  }

  .showcase-item__media {
    aspect-ratio: 4 / 3;
  }
}

/* ==========================================================================
   5. PORTFOLIO GRID (front page)
   ========================================================================== */

.portfolio-hero {
  padding-block: clamp(2.5rem, 6vw, 5rem) clamp(1.5rem, 4vw, 2.5rem);
}

.portfolio-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  max-width: 40ch;
}

/* Scroll-reveal — subtelne pojawianie się elementów przy wjeżdżaniu w viewport. */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-block: 0.5rem 2rem;
}

.portfolio-filters button {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-fg-muted);
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  transition: all var(--transition-fast);
}

.portfolio-filters button:hover {
  border-color: var(--color-fg-muted);
  color: var(--color-fg);
}

.portfolio-filters button.is-active {
  background: var(--color-fg);
  border-color: var(--color-fg);
  color: var(--color-bg);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--gutter);
  padding-bottom: clamp(3rem, 6vw, 6rem);
}

.portfolio-item {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
}

.portfolio-item__link {
  display: block;
  width: 100%;
  height: 100%;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.05) brightness(0.92);
  transition: transform var(--transition-base), filter 0.6s ease;
}

.portfolio-item:hover img {
  transform: scale(1.035);
  filter: grayscale(0%) contrast(1) brightness(1);
}

/* Kafelek statystyk wtopiony w mozaikę — czysty tekst, bez zdjęcia. */
.portfolio-item--stat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1.5rem;
  border-style: dashed;
}

.portfolio-item--stat strong {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-fg);
  line-height: 1;
}

.portfolio-item--stat span {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-fg-muted);
}

.portfolio-item__meta {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  padding: 1.1rem 1.25rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.4) 60%, transparent 100%);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.portfolio-item:hover .portfolio-item__meta {
  opacity: 1;
  transform: translateY(0);
}

.portfolio-item__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  margin: 0 0 0.15rem;
  color: #ffffff;
}

.portfolio-item__category {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.75);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Placeholder used until real renders are uploaded */
.portfolio-item--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: repeating-linear-gradient(
    45deg,
    var(--color-bg-alt),
    var(--color-bg-alt) 10px,
    #dcdcda 10px,
    #dcdcda 20px
  );
}

.portfolio-item--placeholder span {
  font-size: 0.75rem;
  color: var(--color-fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(0, 0, 0, 0.55);
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
}

.portfolio-empty {
  padding-block: 4rem;
  text-align: center;
  color: var(--color-fg-muted);
  grid-column: 1 / -1;
}

/* ==========================================================================
   6. SINGLE REALIZACJA
   ========================================================================== */

.project-header {
  padding-block: clamp(2.5rem, 6vw, 4rem) clamp(1.5rem, 4vw, 2rem);
  border-bottom: 1px solid var(--color-border);
}

.project-header__category {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-fg-muted);
}

.project-header h1 {
  font-size: clamp(1.75rem, 4vw, 3rem);
  margin-block: 0.4em 0.6em;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  font-size: 0.85rem;
  color: var(--color-fg-muted);
}

.project-meta strong {
  display: block;
  color: var(--color-fg);
  font-weight: 500;
}

.project-gallery {
  columns: 3 320px;
  column-gap: 0.85rem;
  padding-block: clamp(2rem, 5vw, 3.5rem);
}

.project-gallery__item {
  break-inside: avoid;
  margin-bottom: 0.85rem;
  cursor: zoom-in;
  overflow: hidden;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
}

.project-gallery__item img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(25%);
  transition: transform var(--transition-base), filter var(--transition-base);
}

.project-gallery__item:hover img {
  transform: scale(1.015);
  filter: grayscale(0%);
}

.project-back {
  display: inline-block;
  margin: 2rem var(--gutter);
  font-size: 0.85rem;
  color: var(--color-fg-muted);
}

.project-back:hover {
  color: var(--color-fg);
}

/* ==========================================================================
   7. LIGHTBOX
   ========================================================================== */

.hokus-lightbox {
  position: fixed;
  inset: 0;
  z-index: 20010;
  background: rgba(6, 6, 7, 0.96);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base);
}

.hokus-lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.hokus-lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
}

.hokus-lightbox__close,
.hokus-lightbox__prev,
.hokus-lightbox__next {
  position: absolute;
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 1.75rem;
  padding: 0.75rem 1rem;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.hokus-lightbox__close:hover,
.hokus-lightbox__prev:hover,
.hokus-lightbox__next:hover {
  opacity: 1;
}

.hokus-lightbox__close {
  top: 1rem;
  right: 1rem;
}

.hokus-lightbox__prev {
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
}

.hokus-lightbox__next {
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
}

@media (max-width: 640px) {
  .hokus-lightbox__close,
  .hokus-lightbox__prev,
  .hokus-lightbox__next {
    font-size: 2.25rem;
    padding: 1.1rem 1.3rem;
    opacity: 0.85;
  }
}

/* ==========================================================================
   8. GENERIC PAGE (O mnie / Kontakt)
   ========================================================================== */

.page-content {
  padding-block: clamp(3rem, 6vw, 5rem);
  max-width: 760px;
}

.page-content h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 1.25rem;
}

.about-photo {
  width: 220px;
  height: 220px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 2rem;
  border: 1px solid var(--color-border);
}

.about-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block: 1.5rem 2rem;
}

.about-skills span {
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  font-size: 0.8rem;
  color: var(--color-fg-muted);
}

/* ==========================================================================
   8b. ONE-PAGER: sekcje "O mnie" i "Kontakt" na stronie głównej
   ========================================================================== */

.home-section {
  padding-block: clamp(3rem, 6vw, 5rem);
  border-top: 1px solid var(--color-border);
}

.home-section__eyebrow {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.8rem;
  color: var(--color-fg-muted);
  margin-bottom: 1.5rem;
}

.home-about {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: flex-start;
  max-width: 1000px;
  margin-inline: auto;
}

.home-about__photo {
  flex: 0 0 260px;
  width: 260px;
  height: 260px;
  object-fit: cover;
  border: 1px solid var(--color-border);
}

.home-about__content {
  flex: 1 1 420px;
}

.home-contact {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(2.5rem, 5vw, 5rem);
  max-width: 1000px;
  margin-inline: auto;
}

.home-contact__intro {
  flex: 1 1 320px;
  max-width: 420px;
}

.home-contact__email {
  display: inline-block;
  margin-top: 1.5rem;
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  color: var(--color-fg);
  border-bottom: 1px solid var(--color-fg);
  padding-bottom: 0.2rem;
  transition: opacity var(--transition-fast);
}

.home-contact__email:hover {
  opacity: 0.6;
}

.home-contact__form {
  flex: 1 1 380px;
  max-width: 480px;
}

.home-contact__form .contact-form {
  margin-top: 0;
}

@media (max-width: 780px) {
  .home-about__photo {
    flex-basis: 100%;
    width: 100%;
    max-width: 260px;
    height: 260px;
  }
}

/* ==========================================================================
   9. CONTACT FORM (custom, no plugin)
   ========================================================================== */

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 2rem;
}

.contact-form label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-fg-muted);
  margin-bottom: 0.5rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  color: var(--color-fg);
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border-radius: 2px;
  transition: border-color var(--transition-fast);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-fg-muted);
}

.contact-form textarea {
  min-height: 160px;
  resize: vertical;
}

.contact-form button {
  align-self: flex-start;
  background: var(--color-fg);
  color: var(--color-bg);
  border: none;
  padding: 0.85rem 2rem;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 2px;
  transition: opacity var(--transition-fast);
}

.contact-form button:hover {
  opacity: 0.85;
}

/* Honeypot field — hidden from real users, visible to bots */
.contact-form .hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-notice {
  padding: 0.85rem 1.1rem;
  border-radius: 2px;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.form-notice--success {
  background: rgba(60, 160, 100, 0.1);
  border: 1px solid rgba(60, 160, 100, 0.35);
  color: #2f7a4f;
}

.form-notice--error {
  background: rgba(200, 70, 70, 0.08);
  border: 1px solid rgba(200, 70, 70, 0.3);
  color: #a83b3b;
}

/* ==========================================================================
   10. FOOTER
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: 2rem;
  margin-top: 3rem;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--color-fg-muted);
}

.site-footer a:hover {
  color: var(--color-fg);
}

/* ==========================================================================
   11. CURSOR GLOW — subtelna, magiczna poświata podążająca za kursorem
   ========================================================================== */

.cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26, 26, 26, 0.06) 0%, rgba(26, 26, 26, 0) 70%);
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 9997;
  opacity: 0;
  transition: opacity 0.4s ease;
  will-change: transform;
}

.cursor-glow.is-visible {
  opacity: 1;
}

.cursor-trail-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9998;
}

/* ==========================================================================
   12. PAGE LOADER — nakładka startowa, znika po pełnym załadowaniu strony
   (ważne przy ciężkich renderach, żeby nie było "wyskakujących" obrazów).
   ========================================================================== */

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  opacity: 1;
  visibility: visible;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.page-loader__spinner {
  width: 36px;
  height: 36px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-fg);
  border-radius: 50%;
  animation: hokus-spin 0.8s linear infinite;
}

@keyframes hokus-spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .page-loader__spinner {
    animation: none;
  }
}

/* ==========================================================================
   13. RESPONSIVE
   ========================================================================== */

@media (max-width: 780px) {
  .mobile-nav-toggle {
    display: block;
    z-index: 20002;
  }

  .primary-menu {
    position: fixed;
    inset: 0;
    height: 100vh;
    height: 100dvh;
    z-index: 20001;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    background: rgba(250, 250, 249, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transform: translateX(100%);
    transition: transform 0.35s ease;
  }

  .primary-menu.is-open {
    transform: translateX(0);
  }

  .primary-menu a {
    font-size: 1.35rem;
    color: var(--color-fg);
  }
}

@media (max-width: 640px) {
  .portfolio-grid,
  .project-gallery {
    grid-template-columns: 1fr;
  }

  .portfolio-item {
    aspect-ratio: 4 / 3;
  }

  /* Krótsze hero i wskaźnik scrolla bliżej treści — na wąskich, wysokich
     ekranach mobilnych pełne 100vh z wyśrodkowaną treścią zostawiało
     zbyt dużo pustej przestrzeni między CTA a "Przewiń" na samym dole. */
  .hero-intro {
    min-height: 88vh;
    min-height: 88svh;
  }

  .hero-intro__scroll {
    bottom: 1.25rem;
  }
}