/* ==========================================================================
   Serdecznie — design system
   Palette / type / breakpoints documented in docs/topics/design-system.md
   Breakpoints: mobile <=640px, tablet 641-1024px, desktop >=1025px
   (docs/topics/responsive-design.md)
   ========================================================================== */

:root {
  --color-bg: #fff8f2;
  --color-surface: #ffffff;
  --color-surface-alt: #fff1e6;
  --color-text: #3a2b24;
  --color-text-muted: #8a7367;
  --color-accent: #e07856;
  --color-accent-dark: #c15c3e;
  --color-accent-soft: #f6c9a8;
  --color-accent-pink: #f2a7a0;
  --gradient-warm: linear-gradient(135deg, #f6c9a8 0%, #f2a7a0 50%, #e07856 100%);

  --font-heading: "Fraunces", Georgia, serif;
  --font-nav: "Poppins", sans-serif;
  --font-body: "Inter", sans-serif;

  --container-width: 1160px;
  --header-height: 76px;

  --shadow-soft: 0 12px 32px -12px rgba(58, 43, 36, 0.18);
  --shadow-lift: 0 20px 40px -16px rgba(58, 43, 36, 0.28);

  --transition-base: 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

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

h1,
h2,
h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--color-text);
}

p {
  margin: 0 0 1em;
}

em {
  font-style: italic;
  color: var(--color-text-muted);
}

button {
  font: inherit;
  cursor: pointer;
}

section[id] {
  scroll-margin-top: var(--header-height);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-surface);
  color: var(--color-text);
  padding: 0.75em 1.25em;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}

.skip-link:focus {
  left: 0;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 24px;
}

.eyebrow {
  font-family: var(--font-nav);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: 0.75em;
}

/* ---- buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-nav);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85em 1.7em;
  border-radius: 999px;
  border: 2px solid transparent;
  transition: transform var(--transition-base), box-shadow var(--transition-base),
    background var(--transition-base), color var(--transition-base);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff8f2;
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--gradient-warm);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: rgba(58, 43, 36, 0.18);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
  transform: translateY(-2px);
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background var(--transition-base), box-shadow var(--transition-base),
    backdrop-filter var(--transition-base);
}

.site-header.is-scrolled {
  background: rgba(255, 248, 242, 0.92);
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 24px -8px rgba(58, 43, 36, 0.16);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo img {
  height: 42px;
  width: auto;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.social-icons {
  display: flex;
  align-items: center;
  gap: 12px;
}

.social-icons a {
  display: inline-flex;
  transition: transform var(--transition-base);
}

.social-icons a:hover,
.social-icons a:focus-visible {
  transform: translateY(-2px) scale(1.06);
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  border-radius: 8px;
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--color-surface);
  box-shadow: 0 12px 24px -12px rgba(58, 43, 36, 0.2);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.site-nav.is-open {
  max-height: 320px;
}

.nav-list {
  display: flex;
  flex-direction: column;
  padding: 8px 24px 20px;
}

.nav-link {
  display: block;
  padding: 14px 0;
  font-family: var(--font-nav);
  font-weight: 500;
  font-size: 1rem;
  border-bottom: 1px solid rgba(58, 43, 36, 0.08);
  transition: color var(--transition-base);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-accent-dark);
}

/* ==========================================================================
   Hero (pinned scrollytelling: content slides in, images cross-fade on scroll)
   ========================================================================== */

.hero {
  position: relative;
  height: 170vh;
}

.hero-blob {
  position: absolute;
  top: -10%;
  right: -20%;
  width: 70vw;
  height: 70vw;
  max-width: 720px;
  max-height: 720px;
  background: var(--gradient-warm);
  opacity: 0.25;
  border-radius: 50%;
  filter: blur(60px);
  z-index: -1;
}

.hero-pin {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
}

.hero-inner {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.hero-content {
  opacity: 0;
  transform: translateX(-48px);
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.hero-content.is-in {
  opacity: 1;
  transform: translateX(0);
}

.hero-title {
  font-size: clamp(1.9rem, 6.5vw, 3.4rem);
}

.hero-text {
  max-width: 46ch;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
}

.hero-media {
  position: relative;
  aspect-ratio: 4 / 3;
  max-height: 42vh;
  opacity: 0;
  transition: opacity 1.1s ease 0.15s;
}

.hero-media.is-in {
  opacity: 1;
}

.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.hero-img-2 {
  opacity: 0;
}

/* ==========================================================================
   Section heading (shared)
   ========================================================================== */

.section-heading {
  max-width: 60ch;
  margin-bottom: 40px;
}

.section-lead {
  color: var(--color-text-muted);
}

.offer,
.about,
.story {
  padding-block: 88px;
}

.about {
  background: var(--color-surface-alt);
}

/* ==========================================================================
   Offer / carousel
   ========================================================================== */

.carousel {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
}

.carousel-viewport {
  flex: 1;
  overflow: hidden;
}

.carousel-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.offer-card {
  flex: 0 0 100%;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: var(--color-surface);
  border-radius: 28px;
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

.carousel-arrow {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: var(--color-surface);
  color: var(--color-accent-dark);
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-base), background var(--transition-base),
    color var(--transition-base);
}

.carousel-arrow:hover,
.carousel-arrow:focus-visible {
  background: var(--color-accent);
  color: #fff8f2;
  transform: translateY(-2px);
}

.carousel-dots {
  position: absolute;
  bottom: -36px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 10px;
}

.offer-img-btn {
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  background: none;
  border-radius: 20px;
  cursor: zoom-in;
}

.offer-main-btn {
  display: flex;
  justify-content: center;
  border-radius: 20px;
  overflow: hidden;
}

.offer-main-img {
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: 380px;
  border-radius: 20px;
  transition: transform var(--transition-base);
}

.offer-img-btn:hover .offer-main-img,
.offer-img-btn:focus-visible .offer-main-img {
  transform: scale(1.015);
}

.offer-thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.offer-thumbs .offer-img-btn {
  flex: 1 1 80px;
  max-width: 110px;
  border-radius: 12px;
  overflow: hidden;
}

.offer-thumbs img {
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 12px;
  transition: transform var(--transition-base);
}

.offer-thumbs .offer-img-btn:hover img,
.offer-thumbs .offer-img-btn:focus-visible img {
  transform: translateY(-3px);
}

.offer-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.offer-tag {
  display: inline-block;
  font-family: var(--font-nav);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  padding: 0.35em 0.9em;
  border-radius: 999px;
  margin-bottom: 0.9em;
}

.offer-desc {
  color: var(--color-text-muted);
}

.offer-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

/* ==========================================================================
   About
   ========================================================================== */

.about-inner {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.about-img {
  width: 100%;
  height: auto;
  max-width: 320px;
  margin-inline: auto;
  border-radius: 50%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  box-shadow: var(--shadow-lift);
}

.about-content {
  text-align: center;
}

/* ==========================================================================
   Story
   ========================================================================== */

.story-inner {
  max-width: 68ch;
  margin-inline: auto;
}

.story-content p {
  color: var(--color-text-muted);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--color-surface-alt);
  padding-block: 56px 32px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.footer-tagline {
  color: var(--color-text-muted);
  margin: 0;
}

.footer-nav {
  display: flex;
  gap: 20px;
  font-family: var(--font-nav);
  font-weight: 500;
  font-size: 0.9rem;
}

.footer-nav a {
  transition: color var(--transition-base);
}

.footer-nav a:hover {
  color: var(--color-accent-dark);
}

.footer-copy {
  color: var(--color-text-muted);
  font-size: 0.82rem;
  margin: 8px 0 0;
}

/* ==========================================================================
   Scroll-reveal animation
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn,
  .offer-main-img,
  .offer-thumbs img,
  .social-icons a {
    transition: none !important;
  }

  .hero {
    height: auto;
  }

  .hero-pin {
    position: static;
    height: auto;
    padding-block: 56px;
  }

  .hero-content,
  .hero-media {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ==========================================================================
   Tablet: ~641-1024px
   ========================================================================== */

@media (min-width: 641px) {
  .about-inner {
    flex-direction: row;
    align-items: center;
    text-align: left;
  }

  .about-content {
    text-align: left;
  }

  .about-img {
    margin-inline: 0;
    flex: 0 0 280px;
  }
}

/* ==========================================================================
   Desktop: >=1025px
   ========================================================================== */

@media (min-width: 1025px) {
  .header-actions {
    order: 3;
  }

  .nav-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    max-height: none;
    overflow: visible;
    background: transparent;
    box-shadow: none;
    order: 2;
    flex: 1;
  }

  .nav-list {
    flex-direction: row;
    justify-content: center;
    padding: 0;
    gap: 36px;
  }

  .nav-link {
    padding: 8px 0;
    border-bottom: none;
  }

  .nav-link::after {
    content: "";
    display: block;
    height: 2px;
    width: 0;
    background: var(--color-accent);
    transition: width var(--transition-base);
  }

  .nav-link:hover::after,
  .nav-link:focus-visible::after {
    width: 100%;
  }

  .hero-inner {
    flex-direction: row;
    align-items: flex-start;
    gap: 64px;
  }

  .hero-content {
    padding-top: 12px;
  }

  .hero-content,
  .hero-media {
    flex: 1 1 50%;
  }

  .hero-media {
    max-height: none;
  }

  .offer-card {
    flex-direction: row;
    align-items: center;
    padding: 40px;
  }

  .offer-media,
  .offer-info {
    flex: 1 1 50%;
  }

  .offer-info {
    padding-left: 16px;
  }

  .about-img {
    flex-basis: 340px;
  }

  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .footer-copy {
    margin: 0;
    margin-left: auto;
  }
}

/* ==========================================================================
   Lightbox (image gallery) + info modal
   ========================================================================== */

.lightbox,
.modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox[aria-hidden="true"],
.modal[aria-hidden="true"] {
  display: none;
}

.lightbox {
  background: rgba(58, 43, 36, 0.94);
  padding: 24px;
}

.lightbox-stage {
  max-width: min(90vw, 720px);
  max-height: 74vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 74vh;
  border-radius: 16px;
  box-shadow: var(--shadow-lift);
}

.lightbox-close,
.lightbox-nav {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 248, 242, 0.14);
  color: #fff8f2;
  transition: background var(--transition-base), transform var(--transition-base);
}

.lightbox-close:hover,
.lightbox-close:focus-visible,
.lightbox-nav:hover,
.lightbox-nav:focus-visible {
  background: rgba(255, 248, 242, 0.28);
}

.lightbox-close {
  top: 16px;
  right: 16px;
}

.lightbox-nav {
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-nav:hover,
.lightbox-nav:focus-visible {
  transform: translateY(-50%) scale(1.06);
}

.lightbox-prev {
  left: 12px;
}

.lightbox-next {
  right: 12px;
}

.lightbox-dots {
  position: absolute;
  bottom: 18px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 10px;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 248, 242, 0.35);
  padding: 0;
  transition: background var(--transition-base), transform var(--transition-base);
}

.dot.is-active {
  background: var(--color-accent-soft);
  transform: scale(1.3);
}

.modal {
  background: rgba(58, 43, 36, 0.55);
  padding: 24px;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
}

.modal-panel {
  position: relative;
  background: var(--color-surface);
  border-radius: 24px;
  padding: 40px 28px 32px;
  max-width: 560px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lift);
}

.modal-panel h3 {
  padding-right: 24px;
}

.modal-panel p {
  color: var(--color-text-muted);
  margin: 0;
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: var(--color-surface-alt);
  color: var(--color-text);
  transition: background var(--transition-base);
}

.modal-close:hover,
.modal-close:focus-visible {
  background: var(--color-accent-soft);
}

@media (min-width: 641px) {
  .modal-panel {
    padding: 48px 40px 40px;
  }
}