/* ===== Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --purple: #7171d3;
  --purple-light: #8f8fe0;
  --purple-dark: #5a5ab8;
  --turquoise: #77bccc;
  --turquoise-light: #a3d5e0;
  --white: #ffffff;
  --off-white: #fafafe;
  --gray-100: #f4f4f8;
  --gray-200: #e8e8f0;
  --gray-500: #6b6b80;
  --gray-800: #2a2a3d;
  --black: #1a1a2e;

  --font-display: 'DM Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;

  --nav-height: 64px;
}

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

body {
  font-family: var(--font-body);
  color: var(--black);
  background: var(--white);
  overflow-x: hidden;
}

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

/* ===== Navigation (Floating Header) ===== */
.floating-header {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  width: calc(100% - 48px);
  max-width: 800px;
  border-radius: 14px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.04),
    0 4px 16px rgba(0, 0, 0, 0.06);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              opacity 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.floating-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
}

.nav-logo {
  display: flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.15s;
}

.nav-logo img {
  height: 26px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-link {
  position: relative;
  padding: 6px 10px;
  font-size: 0.85rem;
  font-weight: 400;
  text-decoration: none;
  color: var(--black);
  display: inline-flex;
  align-items: center;
}

.nav-link:hover {
  color: var(--purple);
  -webkit-text-stroke: 0.5px currentColor;
}

.nav-link--active {
  color: var(--purple);
  font-weight: 500;
}

/* Corner brackets */
.nav-link::before,
.nav-link::after,
.nav-link span::before,
.nav-link span::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.nav-link::before {
  top: 0;
  left: 0;
  border-top: 2.5px solid var(--purple);
  border-left: 2.5px solid var(--purple);
  transform: translate(4px, 4px);
}

.nav-link::after {
  top: 0;
  right: 0;
  border-top: 2.5px solid var(--purple);
  border-right: 2.5px solid var(--purple);
  transform: translate(-4px, 4px);
}

.nav-link span::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 8px;
  height: 8px;
  border-bottom: 2.5px solid var(--purple);
  border-left: 2.5px solid var(--purple);
  transform: translate(4px, -4px);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.nav-link span::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 8px;
  height: 8px;
  border-bottom: 2.5px solid var(--purple);
  border-right: 2.5px solid var(--purple);
  transform: translate(-4px, -4px);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.nav-link:hover::before,
.nav-link:hover::after,
.nav-link:hover span::before,
.nav-link:hover span::after {
  opacity: 1;
  transform: translate(0, 0);
}

/* Nav actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Mask Animation Wrapper */
.btn-mask-wrap {
  position: relative;
  display: inline-flex;
  overflow: hidden;
  border-radius: 7px;
  border: 1px solid var(--black);
}

.btn-mask-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--black);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.82rem;
  pointer-events: none;
  z-index: 0;
}

.btn.btn-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 7px;
  background: var(--black);
  color: var(--white);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.btn-mask-wrap .btn-nav {
  position: relative;
  z-index: 1;
  width: 100%;
  border: none;
  border-radius: 0;
  background: var(--black);
  -webkit-mask: url("https://raw.githubusercontent.com/robin-dela/css-mask-animation/master/img/urban-sprite.png");
  mask: url("https://raw.githubusercontent.com/robin-dela/css-mask-animation/master/img/urban-sprite.png");
  -webkit-mask-size: 3000% 100%;
  mask-size: 3000% 100%;
  -webkit-animation: maskOut 0.7s steps(29) forwards;
  animation: maskOut 0.7s steps(29) forwards;
}

.btn-mask-wrap .btn-nav:hover {
  -webkit-animation: maskIn 0.7s steps(29) forwards;
  animation: maskIn 0.7s steps(29) forwards;
  transform: none;
}

@keyframes maskIn {
  from { -webkit-mask-position: 0 0; mask-position: 0 0; }
  to   { -webkit-mask-position: 100% 0; mask-position: 100% 0; }
}

@keyframes maskOut {
  from { -webkit-mask-position: 100% 0; mask-position: 100% 0; }
  to   { -webkit-mask-position: 0 0; mask-position: 0 0; }
}

/* Hamburger button (hidden on desktop) */
.btn-menu {
  display: none;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 7px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  background: none;
  cursor: pointer;
  color: var(--black);
  transition: background 0.15s;
}

.btn-menu:hover {
  background: rgba(0, 0, 0, 0.05);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 2px;
  padding: 6px 8px 10px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--black);
  text-decoration: none;
  transition: background 0.15s;
}

.mobile-menu a:hover {
  background: rgba(0, 0, 0, 0.05);
}

.mobile-cta {
  margin-top: 4px;
  text-align: center;
  padding: 10px 14px !important;
  font-size: 0.85rem !important;
  font-weight: 600 !important;
  background: var(--black);
  color: var(--white) !important;
  border-radius: 8px;
}

/* Language Toggle (pill switch EN/NL) */
.lang-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  background: var(--gray-100);
  border-radius: 50px;
  padding: 3px;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 0 rgba(255, 255, 255, 0.8);
}

.lang-toggle__slider {
  position: absolute;
  top: 3px;
  left: 3px;
  width: calc(50% - 3px);
  height: calc(100% - 6px);
  background: var(--white);
  border-radius: 50px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(0, 0, 0, 0.04);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 0;
}

.lang-toggle.is-nl .lang-toggle__slider {
  transform: translateX(100%);
}

.lang-toggle__opt {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border: none;
  background: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--gray-500);
  position: relative;
  z-index: 1;
  transition: color 0.3s ease;
  line-height: 1;
}

.lang-toggle__opt--active {
  color: var(--black);
}

.lang-toggle__flag {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.08);
}

.lang-toggle__flag svg {
  width: 100%;
  height: 100%;
  display: block;
}

.lang-toggle__text {
  user-select: none;
}

/* ===== Blog Hero ===== */
.blog-hero {
  position: relative;
  padding: 140px 24px 80px;
  text-align: center;
  overflow: hidden;
}

.blog-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.blog-hero__noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  background-size: 256px;
}

.blog-hero__grad {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
}

.blog-hero__grad--1 {
  width: 500px;
  height: 500px;
  top: -150px;
  right: -100px;
  background: var(--purple);
}

.blog-hero__grad--2 {
  width: 400px;
  height: 400px;
  bottom: -100px;
  left: -100px;
  background: var(--turquoise);
}

.blog-hero__content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.blog-hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-500);
  margin-bottom: 24px;
}

.blog-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--black);
  margin-bottom: 16px;
}

.blog-hero__subtitle {
  font-size: 1.1rem;
  color: var(--gray-500);
  line-height: 1.5;
}

/* ===== Filter Tabs ===== */
.blog-filters {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 32px 24px 0;
  max-width: 900px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.blog-filters[hidden] {
  display: none !important;
}

.blog-filters__btn {
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-600);
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.blog-filters__btn:hover {
  border-color: var(--purple);
  color: var(--purple);
}

.blog-filters__btn--active {
  background: var(--purple);
  border-color: var(--purple);
  color: var(--white);
}

.blog-filters__btn--active:hover {
  background: var(--purple-dark);
  border-color: var(--purple-dark);
  color: var(--white);
}

/* ===== Blog Grid ===== */
.blog-grid {
  padding: 32px 24px 80px;
}

.blog-grid__inner {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

/* ===== Blog Card ===== */
.blog-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.blog-card:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.blog-card__image {
  background: var(--gray-100);
  overflow: hidden;
  min-height: 200px;
}

.blog-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.blog-card:hover .blog-card__img {
  transform: scale(1.04);
}

.blog-card__body {
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.blog-card__category {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--gray-500);
  width: fit-content;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.82rem;
  color: var(--gray-500);
}

.blog-card__date {
  font-weight: 500;
}

.blog-card__reading {
  position: relative;
  padding-left: 16px;
}

.blog-card__reading::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gray-500);
}

.blog-card__title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--black);
}

.blog-card__excerpt {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--gray-500);
}

.blog-card__read-more {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--purple);
  text-decoration: none;
  transition: color 0.2s;
}

.blog-card__read-more:hover {
  color: var(--purple-dark);
}

.blog-card {
  cursor: pointer;
}

/* Back button */
.blog-article__back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--gray-500);
  text-decoration: none;
  margin-top: 48px;
  transition: color 0.2s;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  font-family: var(--font-body);
}

.blog-article__back:hover {
  color: var(--purple);
}

/* Article hidden state */
.blog-article[hidden] {
  display: none;
}

/* Hide grid when article is open */
.blog-grid[hidden] {
  display: none;
}

/* Article hero image */
.blog-article__hero-img {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 40px;
}

/* ===== Blog Article ===== */
.blog-article {
  padding: 100px 24px 100px;
}

.blog-article__inner {
  max-width: 720px;
  margin: 0 auto;
}

.blog-article__header {
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--gray-200);
}

.blog-article__tag {
  display: inline-flex;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--purple);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.blog-article__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--black);
  margin-bottom: 24px;
}

.blog-article__meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.blog-article__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
}

.blog-article__author {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--black);
}

.blog-article__date {
  display: block;
  font-size: 0.82rem;
  color: var(--gray-500);
}

/* Article content */
.blog-article__content {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--gray-800);
}

.blog-article__content h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--black);
  margin: 40px 0 16px;
}

.blog-article__content p {
  margin-bottom: 20px;
}

.blog-article__content ul,
.blog-article__content ol {
  margin: 0 0 20px 24px;
}

.blog-article__content li {
  margin-bottom: 10px;
}

.blog-article__content a {
  color: var(--purple);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.blog-article__content a:hover {
  color: var(--purple-dark);
}

.blog-article__content strong {
  color: var(--black);
  font-weight: 600;
}

.blog-article__inline-img {
  width: 100%;
  border-radius: 12px;
  margin: 24px 0;
}

/* ===== Author Card ===== */
.author-card {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  margin-top: 56px;
  padding: 32px;
  background: var(--gray-50);
  border-radius: 16px;
  border: 1px solid var(--gray-200);
}

.author-card__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.author-card__info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.author-card__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-500);
  font-weight: 500;
}

.author-card__name {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--black);
  margin: 0;
}

.author-card__role {
  font-size: 0.88rem;
  color: var(--purple);
  font-weight: 500;
  margin: 0;
}

.author-card__bio {
  font-size: 0.92rem;
  color: var(--gray-600);
  line-height: 1.6;
  margin: 8px 0 0;
}

@media (max-width: 768px) {
  .author-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 16px;
    padding: 24px;
  }
}

/* ===== Footer ===== */
.blog-footer {
  border-top: 1px solid var(--gray-200);
  padding: 16px 24px;
}

.blog-footer__inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.blog-footer__logo img {
  height: 22px;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.blog-footer__logo:hover img {
  opacity: 1;
}

.blog-footer__copy {
  font-size: 0.82rem;
  color: var(--gray-500);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .floating-header {
    width: calc(100% - 24px);
    top: 8px;
  }

  .nav-links,
  .nav-actions .btn-mask-wrap {
    display: none;
  }

  .btn-menu {
    display: flex;
  }

  .nav-logo img {
    height: 23px;
  }

  .blog-hero {
    padding: 110px 20px 60px;
  }

  .blog-card {
    grid-template-columns: 1fr;
  }

  .blog-card__image {
    min-height: 160px;
  }

  .blog-card__body {
    padding: 20px 24px;
  }

  .blog-card__title {
    font-size: 1.2rem;
  }

  .blog-article__content {
    font-size: 1rem;
  }

  .blog-footer__inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* Phone screenshot gallery */
.blog-article__phone-gallery {
  display: flex;
  gap: 16px;
  margin: 24px 0;
  justify-content: center;
}

.blog-article__phone-img {
  width: calc(33.333% - 11px);
  border-radius: 16px;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.12);
}

@media (max-width: 600px) {
  .blog-article__phone-gallery {
    gap: 8px;
  }

  .blog-article__phone-img {
    border-radius: 10px;
  }
}