/* =========================================================
   ZACK PORTFOLIO
   ARTICLES PAGE
   ========================================================= */

/* =========================================================
   HERO
   ========================================================= */

.articles-page-hero {
  position: relative;

  min-height: 570px;

  display: flex;

  align-items: center;

  padding-top: 145px;
  padding-bottom: 95px;

  overflow: hidden;

  background: radial-gradient(
    circle at 72% 40%,
    rgba(56, 189, 248, 0.075),
    transparent 35%
  );
}

.articles-page-hero::before {
  content: "";

  position: absolute;

  inset: 0;

  background-image:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);

  background-size: 60px 60px;

  mask-image: linear-gradient(to bottom, black, transparent);

  -webkit-mask-image: linear-gradient(to bottom, black, transparent);
}

.articles-hero-content {
  position: relative;

  max-width: 950px;

  z-index: 1;
}

.articles-hero-title {
  margin: 20px 0 25px;

  color: var(--color-white);

  font-family: var(--font-heading);

  font-size: clamp(3.4rem, 7vw, 6rem);

  font-weight: 700;

  line-height: 0.98;

  letter-spacing: -0.065em;
}

.articles-hero-description {
  max-width: 700px;

  color: var(--color-text-muted);

  font-size: 1rem;

  line-height: 1.85;
}

.articles-hero-meta {
  display: flex;

  flex-wrap: wrap;

  gap: 8px;

  margin-top: 30px;
}

.articles-hero-meta span {
  padding: 7px 10px;

  border: 1px solid rgba(255, 255, 255, 0.07);

  border-radius: 6px;

  color: var(--color-text-muted);

  background: rgba(255, 255, 255, 0.02);

  font-family: var(--font-mono);

  font-size: 0.5rem;
}

/* =========================================================
   FEATURED ARTICLE
   ========================================================= */

.featured-article-section {
  padding-top: 110px;

  padding-bottom: 120px;
}

.featured-article {
  display: grid;

  grid-template-columns: 1fr 1fr;

  min-height: 460px;

  margin-top: 55px;

  overflow: hidden;

  border: 1px solid rgba(255, 255, 255, 0.07);

  border-radius: 20px;

  background: rgba(255, 255, 255, 0.015);
}

.featured-article-visual {
  position: relative;

  min-height: 460px;

  display: flex;

  align-items: center;

  justify-content: center;

  overflow: hidden;

  background: radial-gradient(
    circle at center,
    rgba(56, 189, 248, 0.09),
    transparent 60%
  );
}

.featured-article-visual::before {
  content: "";

  position: absolute;

  inset: 0;

  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);

  background-size: 42px 42px;
}

.article-visual-grid {
  position: absolute;

  inset: 25px;

  display: grid;

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

  grid-template-rows: repeat(2, 1fr);

  opacity: 0.45;
}

.article-visual-grid span {
  display: flex;

  align-items: center;

  justify-content: center;

  color: rgba(255, 255, 255, 0.18);

  border: 1px solid rgba(255, 255, 255, 0.05);

  font-family: var(--font-mono);

  font-size: 0.55rem;
}

.article-visual-center {
  position: relative;

  width: 145px;

  height: 145px;

  display: flex;

  align-items: center;

  justify-content: center;

  border: 1px solid rgba(56, 189, 248, 0.3);

  border-radius: 50%;

  color: var(--color-primary);

  background: rgba(4, 9, 15, 0.7);

  box-shadow: 0 0 70px rgba(56, 189, 248, 0.12);

  font-family: var(--font-mono);

  font-size: 1.5rem;
}

.featured-article-content {
  display: flex;

  flex-direction: column;

  justify-content: center;

  padding: 55px;
}

.article-meta {
  display: flex;

  flex-wrap: wrap;

  align-items: center;

  gap: 10px;

  margin-bottom: 15px;
}

.article-meta span {
  color: var(--color-text-muted);

  font-family: var(--font-mono);

  font-size: 0.51rem;

  text-transform: uppercase;

  letter-spacing: 0.07em;
}

.article-meta .article-category {
  color: var(--color-primary);
}

.featured-article-content h3 {
  max-width: 600px;

  margin-bottom: 18px;

  color: var(--color-white);

  font-size: clamp(1.7rem, 3vw, 2.6rem);

  line-height: 1.2;

  letter-spacing: -0.035em;
}

.featured-article-content > p {
  max-width: 620px;

  margin-bottom: 23px;

  color: var(--color-text-muted);

  font-size: 0.78rem;

  line-height: 1.85;
}

.article-tags {
  display: flex;

  flex-wrap: wrap;

  gap: 6px;

  margin-bottom: 30px;
}

.article-tags span {
  padding: 6px 9px;

  border: 1px solid rgba(255, 255, 255, 0.07);

  border-radius: 5px;

  color: var(--color-text-muted);

  font-family: var(--font-mono);

  font-size: 0.5rem;
}

.featured-article-content .btn {
  align-self: flex-start;
}

/* =========================================================
   ARTICLES LIST
   ========================================================= */

.articles-list-section {
  padding-top: 110px;

  padding-bottom: 120px;
}

.articles-toolbar {
  display: flex;

  align-items: flex-end;

  justify-content: space-between;

  gap: 30px;
}

.article-filters {
  display: flex;

  flex-wrap: wrap;

  justify-content: flex-end;

  gap: 5px;
}

.article-filter {
  padding: 8px 11px;

  border: 1px solid rgba(255, 255, 255, 0.07);

  border-radius: 6px;

  color: var(--color-text-muted);

  background: transparent;

  cursor: pointer;

  font-family: var(--font-mono);

  font-size: 0.5rem;

  transition: all var(--transition-normal);
}

.article-filter:hover,
.article-filter.active {
  color: var(--color-primary);

  border-color: rgba(56, 189, 248, 0.2);

  background: rgba(56, 189, 248, 0.04);
}

.articles-grid {
  display: grid;

  grid-template-columns: repeat(3, minmax(0, 1fr));

  gap: 15px;

  margin-top: 50px;
}

.article-card {
  overflow: hidden;

  border: 1px solid rgba(255, 255, 255, 0.07);

  border-radius: 15px;

  background: rgba(255, 255, 255, 0.015);

  transition:
    transform var(--transition-normal),
    border-color var(--transition-normal);
}

.article-card:hover {
  transform: translateY(-5px);

  border-color: rgba(56, 189, 248, 0.17);
}

.article-card-visual {
  position: relative;

  height: 190px;

  display: flex;

  align-items: center;

  justify-content: center;

  overflow: hidden;

  background: radial-gradient(
    circle at center,
    rgba(56, 189, 248, 0.065),
    transparent 65%
  );
}

.article-card-visual::before {
  content: "";

  position: absolute;

  inset: 0;

  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);

  background-size: 30px 30px;
}

.article-card-index {
  position: absolute;

  top: 17px;

  left: 18px;

  color: rgba(255, 255, 255, 0.3);

  font-family: var(--font-mono);

  font-size: 0.53rem;
}

.article-card-code {
  position: absolute;

  top: 17px;

  right: 18px;

  color: var(--color-primary);

  font-family: var(--font-mono);

  font-size: 0.48rem;
}

.article-card-symbol {
  position: relative;

  width: 90px;

  height: 90px;

  display: flex;

  align-items: center;

  justify-content: center;

  border: 1px solid rgba(56, 189, 248, 0.18);

  border-radius: 20px;

  color: var(--color-primary);

  background: rgba(4, 9, 15, 0.6);

  font-family: var(--font-mono);

  font-size: 0.9rem;
}

.article-card-content {
  padding: 23px;
}

.article-card-content .article-meta {
  margin-bottom: 11px;
}

.article-card-content .article-meta span {
  font-size: 0.48rem;
}

.article-card-content h3 {
  min-height: 50px;

  margin-bottom: 10px;

  color: var(--color-white);

  font-size: 1rem;

  line-height: 1.4;
}

.article-card-content > p {
  min-height: 66px;

  margin-bottom: 20px;

  color: var(--color-text-muted);

  font-size: 0.7rem;

  line-height: 1.75;
}

.article-card-footer {
  display: flex;

  align-items: center;

  justify-content: space-between;

  padding-top: 16px;

  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.article-reading-time {
  color: rgba(255, 255, 255, 0.3);

  font-family: var(--font-mono);

  font-size: 0.48rem;
}

/* =========================================================
   EMPTY STATE
   ========================================================= */

.articles-empty {
  min-height: 180px;

  display: none;

  align-items: center;

  justify-content: center;

  margin-top: 30px;

  border: 1px dashed rgba(255, 255, 255, 0.1);

  border-radius: 12px;

  color: var(--color-text-muted);

  font-family: var(--font-mono);

  font-size: 0.6rem;
}

/* =========================================================
   WRITING PHILOSOPHY
   ========================================================= */

.writing-philosophy-section {
  padding-top: 110px;

  padding-bottom: 120px;
}

.writing-philosophy-layout {
  display: grid;

  grid-template-columns: 0.8fr 1.2fr;

  gap: 100px;

  align-items: start;
}

.writing-philosophy-heading {
  position: sticky;

  top: 130px;
}

.writing-philosophy-content > p {
  max-width: 700px;

  margin: 0 0 20px;

  color: var(--color-text-muted);

  font-size: 0.82rem;

  line-height: 1.9;
}

.writing-principles {
  display: grid;

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

  margin-top: 40px;

  border-top: 1px solid rgba(255, 255, 255, 0.07);

  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.writing-principles > div {
  display: flex;

  flex-direction: column;

  gap: 8px;

  padding: 20px 15px;

  border-right: 1px solid rgba(255, 255, 255, 0.07);
}

.writing-principles > div:last-child {
  border-right: none;
}

.writing-principles span {
  color: var(--color-primary);

  font-family: var(--font-mono);

  font-size: 0.5rem;
}

.writing-principles strong {
  color: var(--color-white);

  font-size: 0.72rem;
}

/* =========================================================
   CTA
   ========================================================= */

.articles-page-cta {
  padding-top: 70px;

  padding-bottom: 120px;
}

.articles-page-cta-inner {
  position: relative;

  max-width: 1000px;

  min-height: 360px;

  display: flex;

  flex-direction: column;

  align-items: center;

  justify-content: center;

  margin-inline: auto;

  padding: 60px 40px;

  overflow: hidden;

  text-align: center;

  border: 1px solid rgba(56, 189, 248, 0.15);

  border-radius: 25px;

  background: linear-gradient(
    145deg,
    rgba(56, 189, 248, 0.05),
    rgba(129, 140, 248, 0.02)
  );
}

.articles-page-cta-inner::before {
  content: "";

  position: absolute;

  width: 500px;

  height: 500px;

  top: 50%;

  left: 50%;

  transform: translate(-50%, -50%);

  border-radius: 50%;

  background: radial-gradient(
    circle,
    rgba(56, 189, 248, 0.08),
    transparent 70%
  );
}

.articles-page-cta-inner > * {
  position: relative;

  z-index: 2;
}

.articles-page-cta .section-title {
  margin-bottom: 16px;

  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
}

.articles-page-cta .section-description {
  max-width: 620px;

  margin: 0 auto 28px;

  color: var(--color-text-muted);

  line-height: 1.8;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 1050px) {
  .articles-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .writing-philosophy-layout {
    gap: 60px;
  }
}

@media (max-width: 900px) {
  .featured-article {
    grid-template-columns: 1fr;
  }

  .featured-article-visual {
    min-height: 360px;
  }

  .writing-philosophy-layout {
    grid-template-columns: 1fr;

    gap: 50px;
  }

  .writing-philosophy-heading {
    position: static;
  }
}

@media (max-width: 768px) {
  .articles-page-hero {
    min-height: auto;

    padding-top: 115px;

    padding-bottom: 75px;
  }

  .articles-hero-title {
    font-size: clamp(2.7rem, 9vw, 4rem);
  }

  .featured-article-section,
  .articles-list-section,
  .writing-philosophy-section {
    padding-top: 80px;

    padding-bottom: 85px;
  }

  .articles-toolbar {
    align-items: flex-start;

    flex-direction: column;
  }

  .article-filters {
    justify-content: flex-start;
  }

  .articles-grid {
    grid-template-columns: 1fr;

    margin-top: 40px;
  }

  .article-card-content h3 {
    min-height: auto;
  }

  .article-card-content > p {
    min-height: auto;
  }

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

  .writing-principles > div:nth-child(2) {
    border-right: none;
  }

  .writing-principles > div:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  }
}

@media (max-width: 600px) {
  .articles-page-hero {
    padding-top: 100px;

    padding-bottom: 65px;
  }

  .articles-hero-title {
    font-size: 2.35rem;

    letter-spacing: -0.05em;
  }

  .articles-hero-description {
    font-size: 0.84rem;
  }

  .featured-article-visual {
    min-height: 280px;
  }

  .article-visual-center {
    width: 110px;

    height: 110px;

    font-size: 1.1rem;
  }

  .featured-article-content {
    padding: 30px 23px;
  }

  .featured-article-content h3 {
    font-size: 1.45rem;
  }

  .featured-article-content > p {
    font-size: 0.72rem;
  }

  .article-card-visual {
    height: 165px;
  }

  .writing-philosophy-section {
    padding-top: 70px;

    padding-bottom: 75px;
  }

  .writing-philosophy-content > p {
    font-size: 0.75rem;
  }

  .writing-principles {
    grid-template-columns: 1fr 1fr;
  }

  .articles-page-cta {
    padding-top: 50px;

    padding-bottom: 75px;
  }

  .articles-page-cta-inner {
    min-height: 330px;

    padding: 45px 20px;

    border-radius: 20px;
  }

  .articles-page-cta .section-title {
    font-size: 2rem;
  }
}

@media (max-width: 400px) {
  .articles-hero-title {
    font-size: 2.05rem;
  }

  .article-filters {
    gap: 4px;
  }

  .article-filter {
    padding: 7px 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .article-card,
  .featured-article {
    transition: none;
  }
}