/* /blog/assets/css/blog.css */

/* =========================
   RESET
========================= */

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

:root {
  --bg: #f5f7fb;
  --bg-secondary: #ffffffcc;
  --text: #0f172a;
  --text-soft: #64748b;
  --border: rgba(255, 255, 255, 0.2);

  --primary: #2563eb;
  --primary-light: #60a5fa;

  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);

  --card-shadow: 0 10px 25px rgba(15, 23, 42, 0.08);

  --hero-gradient:
    radial-gradient(
      circle at top left,
      rgba(37, 99, 235, 0.15),
      transparent 35%
    ),
    radial-gradient(
      circle at top right,
      rgba(96, 165, 250, 0.15),
      transparent 30%
    );

  --glass: rgba(255, 255, 255, 0.65);

  --blur: blur(14px);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #060816;
    --bg-secondary: rgba(15, 23, 42, 0.75);

    --text: #f8fafc;
    --text-soft: #94a3b8;

    --border: rgba(255, 255, 255, 0.08);

    --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);

    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);

    --hero-gradient:
      radial-gradient(
        circle at top left,
        rgba(37, 99, 235, 0.25),
        transparent 35%
      ),
      radial-gradient(
        circle at top right,
        rgba(59, 130, 246, 0.18),
        transparent 30%
      );

    --glass: rgba(15, 23, 42, 0.6);
  }
}

html {
  scroll-behavior: smooth;
}

body {
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;

  background: var(--hero-gradient), var(--bg);

  color: var(--text);
  line-height: 1.7;

  min-height: 100vh;
  overflow-x: hidden;
}

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

img {
  max-width: 100%;
}

.container {
  width: min(1180px, 92%);
  margin-inline: auto;
}

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

.hero {
  padding: clamp(70px, 12vw, 130px) 0 clamp(50px, 7vw, 90px);

  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.02),
    transparent
  );
  pointer-events: none;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;

  padding: 10px 18px;

  border-radius: 999px;

  background: var(--glass);
  backdrop-filter: var(--blur);

  border: 1px solid var(--border);

  color: var(--primary);

  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;

  margin-bottom: 28px;

  box-shadow: var(--shadow);
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  line-height: 1.02;
  letter-spacing: -0.04em;

  max-width: 950px;

  margin-bottom: 28px;

  font-weight: 800;
}

.hero-subtitle {
  max-width: 760px;

  color: var(--text-soft);

  font-size: clamp(1rem, 2vw, 1.2rem);

  line-height: 1.9;
}

/* =========================
   BLOG SECTION
========================= */

.blog-section {
  padding-bottom: 100px;
}

.blog-grid {
  display: grid;

  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));

  gap: 28px;
}

/* =========================
   BLOG CARD
========================= */

.blog-card {
  position: relative;

  display: flex;
  flex-direction: column;

  padding: 30px;

  border-radius: 28px;

  background: var(--glass);

  backdrop-filter: var(--blur);

  border: 1px solid var(--border);

  overflow: hidden;

  transition:
    transform 0.35s ease,
    box-shadow 0.35s ease,
    border-color 0.35s ease;

  box-shadow: var(--card-shadow);
}

.blog-card::before {
  content: "";

  position: absolute;

  inset: 0;

  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.12),
    transparent 40%
  );

  opacity: 0;

  transition: opacity 0.35s ease;
}

.blog-card:hover {
  transform: translateY(-10px) scale(1.01);

  border-color: rgba(37, 99, 235, 0.25);

  box-shadow: 0 20px 50px rgba(37, 99, 235, 0.15);
}

.blog-card:hover::before {
  opacity: 1;
}

.blog-category {
  display: inline-flex;
  align-items: center;

  width: fit-content;

  padding: 8px 14px;

  border-radius: 999px;

  background: rgba(37, 99, 235, 0.12);

  color: var(--primary);

  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;

  text-transform: uppercase;

  margin-bottom: 22px;
}

.blog-title {
  font-size: clamp(1.4rem, 2vw, 1.65rem);

  line-height: 1.3;

  font-weight: 750;

  margin-bottom: 18px;

  letter-spacing: -0.02em;

  transition: color 0.3s ease;
}

.blog-card:hover .blog-title {
  color: var(--primary);
}

.blog-description {
  color: var(--text-soft);

  font-size: 1rem;

  margin-bottom: 28px;

  flex-grow: 1;
}

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

  margin-top: auto;

  color: var(--text-soft);

  font-size: 0.88rem;
  font-weight: 500;
}

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

.blog-grid p {
  color: var(--text-soft);
  font-size: 1rem;
}

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

@media (max-width: 992px) {
  .blog-grid {
    gap: 22px;
  }

  .blog-card {
    padding: 26px;
  }
}

@media (max-width: 768px) {
  .hero {
    padding-top: 70px;
  }

  .hero h1 {
    line-height: 1.08;
  }

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

  .blog-card {
    border-radius: 24px;
  }
}

@media (max-width: 480px) {
  .container {
    width: min(100%, 92%);
  }

  .hero-tag {
    font-size: 0.72rem;
  }

  .blog-card {
    padding: 22px;
  }

  .blog-title {
    font-size: 1.3rem;
  }

  .blog-description {
    font-size: 0.96rem;
  }

  .blog-meta {
    font-size: 0.82rem;
  }
}