/* =========================================================
   blog.css — PREMIUM (NO CHEAP GREY BACKGROUND)
   Elegant white + subtle light gradients, luxury blacks for cards,
   glass nav, premium mobile menu, crisp spacing & shadows.
   Drop-in replacement (keeps your class names).
========================================================= */

/* -------------------------
   TOKENS
------------------------- */
:root{
  --navy:#0a1a3e;
  --blue:#0077ff;
  --white:#f4f7fa;
  --gray:#4b5563;
  --emerald:#00c46c;
  --light-blue: rgba(0,119,255,.10);

  /* premium extras */
  --ink:#0b1220;
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.74);

  --shadow: 0 18px 60px rgba(0,0,0,.10);
  --shadow-lg: 0 30px 95px rgba(0,0,0,.16);
  --radius: 18px;
  --radius2: 26px;

  --max: 1200px;
  --nav-h: 88px;

  --ease: cubic-bezier(.2,.8,.2,1);
}

/* -------------------------
   RESET + BASE
------------------------- */
*{ margin:0; padding:0; box-sizing:border-box; }
html,body{ height:100%; }

body{
  font-family:"Jost", sans-serif;

  /* Elegant light canvas (NOT grey): creamy white + soft color bloom */
  background:
    radial-gradient(900px 520px at 12% 10%, rgba(0,230,164,.10), transparent 58%),
    radial-gradient(900px 520px at 88% 12%, rgba(0,119,255,.10), transparent 58%),
    linear-gradient(180deg, #ffffff 0%, #fbfdff 45%, #ffffff 100%);

  color: rgba(10,14,18,.74);
  line-height: 1.65;
  overflow-x:hidden;
  padding-top: var(--nav-h);
}

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

a{
  color: inherit;
  text-decoration:none;
  transition: color .25s var(--ease), opacity .25s var(--ease), transform .25s var(--ease);
}

a:focus-visible, button:focus-visible, input:focus-visible{
  outline: 3px solid rgba(0,230,164,.22);
  outline-offset: 3px;
  border-radius: 14px;
}

h1,h2,h3,h4{
  color:#00e6a4;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.3px;
}

.container{
  width:100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

section{ padding: 100px 0; }

/* -------------------------
   BUTTONS (premium)
------------------------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;

  padding: 14px 32px;
  border-radius: 14px;
  font-weight: 500;
  letter-spacing: .25px;
  cursor:pointer;

  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
  will-change: transform;
}

.btn-primary{
  background: linear-gradient(135deg, #00f0ac 0%, #00e6a4 45%, #0077ff 140%);
  color: #06110d;
  border: 0;
  box-shadow: 0 18px 55px rgba(0,230,164,.18);
}

.btn-primary:hover{
  transform: translateY(-3px);
  box-shadow: 0 26px 80px rgba(0,230,164,.24);
}

.btn-secondary{
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.94);
  border: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn-secondary:hover{
  transform: translateY(-3px);
  border-color: rgba(0,230,164,.30);
  background: rgba(0,230,164,.10);
  color: #00ffbf;
}

/* -------------------------
   SECTION HEADER
------------------------- */
.section-header{
  text-align:center;
  margin-bottom: 60px;
}

.section-header h2{
  font-size: clamp(1.9rem, 2.6vw, 2.6rem);
  margin-bottom: 18px;
  position: relative;
  display:inline-block;
}

.section-header h2:after{
  content:"";
  position:absolute;
  bottom:-12px;
  left:50%;
  transform: translateX(-50%);
  width: 86px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--blue), var(--emerald));
}

.section-header p{
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.1rem;
  color: rgba(10,14,18,.66);
}

/* =========================
   HEADER & NAV (glass, premium)
========================= */
header{
  position: fixed;
  top:0; left:0; right:0;
  width:100%;
  z-index:1000;

  background: rgb(0, 0, 0);
  border-bottom: 1px solid rgba(255,255,255,.14);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: background .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}

.navbar{
  min-height: var(--nav-h);
  display:flex;
  justify-content:space-between;
  align-items:center;
}

.logo{
  display:flex;
  align-items:center;
  text-decoration:none;
  transition: transform .25s var(--ease);
}
.logo:hover{ transform: translateY(-1px); }

.logo img{
  height: 64px;
  width:auto;
  object-fit:contain;
  display:block;
}

.nav-links{
  display:flex;
  list-style:none;
  align-items:center;
  gap: 26px;
}

.nav-links li{ margin-left:0; }

.nav-links a{
  color: rgba(255,255,255,.92);
  font-weight: 500;
  position:relative;
  padding: 10px 0;
  letter-spacing: .2px;
}

.nav-links a:hover{ color: rgba(255,255,255,1); }

.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-6px;
  width:0%;
  height:2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #00e6a4, #0077ff);
  transition: width .25s var(--ease);
}

.nav-links a:hover::after{ width:100%; }
.nav-links a.active{ color: rgba(255,255,255,1); }
.nav-links a.active:after{ width:100%; }

/* Premium burger */
.mobile-menu{
  display:none;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  cursor:pointer;

  align-items:center;
  justify-content:center;

  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.08);
  box-shadow: 0 16px 45px rgba(0,0,0,.25);
  transition: transform .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}
.mobile-menu:hover{
  transform: translateY(-1px);
  border-color: rgba(0,230,164,.30);
  background: rgba(0,230,164,.10);
}
.mobile-menu i{ color: rgba(255,255,255,.94); }

/* =========================
   HERO (blog)
========================= */
.hero{
  position:relative;
  background:
    linear-gradient(135deg, rgba(10,26,62,.78), rgba(0,0,0,.60)),
    url("https://images.unsplash.com/photo-1518770660439-4636190af475?auto=format&fit=crop&q=60&w=1920")
    center/cover no-repeat;
  color:white;
  padding: 180px 0 160px;
  overflow:hidden;
}

.hero-overlay{ display:none; } /* your overlay div can exist; this just avoids double-darkening */

.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(520px 260px at 18% 18%, rgba(0,230,164,.18), transparent 60%),
    radial-gradient(520px 260px at 86% 22%, rgba(0,119,255,.16), transparent 60%);
  opacity: .95;
  pointer-events:none;
}

.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(180deg, rgba(0,0,0,.10) 0%, rgba(0,0,0,.35) 55%, rgba(0,0,0,.62) 100%);
  pointer-events:none;
}

.hero-content{
  max-width: 900px;
  margin: 0 auto;
  text-align:center;
  position:relative;
  z-index:2;
}

.hero h1{
  font-size: clamp(2.4rem, 4.6vw, 3.4rem);
  color: #00e6a4;
  margin-bottom: 18px;
  opacity:0;
  transform: translateY(30px);
  animation: fadeInUp 1s var(--ease) forwards .35s;
  text-shadow: 0 12px 30px rgba(0,0,0,.35);
}

.hero p{
  font-size: 1.2rem;
  margin-bottom: 32px;
  opacity:0;
  transform: translateY(30px);
  animation: fadeInUp 1s var(--ease) forwards .6s;
  color: rgba(255,255,255,.86);
}

.hero-btns{
  display:flex;
  justify-content:center;
  gap: 14px;
  flex-wrap:wrap;

  opacity:0;
  transform: translateY(30px);
  animation: fadeInUp 1s var(--ease) forwards .85s;
}

/* floating subtle shapes */
.hero-shapes{
  position:absolute;
  inset:0;
  overflow:hidden;
  z-index:1;
  pointer-events:none;
}

.shape{
  position:absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0,119,255,0.14), rgba(0,230,164,0.12));
  filter: blur(0px);
  opacity: .7;
}

.shape-1{
  width: 360px;
  height: 360px;
  top: -180px;
  right: -140px;
  animation: float 18s infinite ease-in-out;
}

.shape-2{
  width: 250px;
  height: 250px;
  bottom: -90px;
  left: -90px;
  animation: float 22s infinite ease-in-out reverse;
}

/* =========================
   BLOG LAYOUT
========================= */
.blog-layout{
  display:grid;
  grid-template-columns: 1.6fr 0.7fr;
  gap: 30px;
  align-items:start;
}

/* tools row */
.blog-tools{
  display:flex;
  gap: 12px;
  flex-wrap:wrap;
  margin-bottom: 18px;
}

.search{
  flex:1;
  min-width: 240px;
  display:flex;
  align-items:center;
  gap: 10px;

  background: rgba(255,255,255,.92);
  border: 1px solid rgba(10,14,18,.08);
  border-radius: 16px;
  padding: 12px 14px;
  box-shadow: 0 18px 55px rgba(0,0,0,.06);
}

.search i{ color: var(--blue); }

.search input{
  border:none;
  outline:none;
  width:100%;
  font-family: inherit;
  font-size: 1rem;
  color: rgba(10,14,18,.74);
  background: transparent;
}

/* chips */
.chip-row{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  margin: 18px 0 26px;
}

.chip{
  padding: 10px 16px;
  border: 1px solid rgba(10,14,18,.10);
  border-radius: 999px;
  background: rgba(255,255,255,.92);
  cursor:pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
  font-weight: 500;
  color: rgba(10,14,18,.72);
}

.chip:hover{
  transform: translateY(-2px);
  border-color: rgba(0,119,255,.28);
  background: rgba(0,119,255,.06);
  box-shadow: 0 18px 55px rgba(0,0,0,.06);
}

.chip.active{
  background: rgba(0,230,164,.14);
  color: rgba(10,14,18,.86);
  border-color: rgba(0,230,164,.30);
}

/* =========================
   FEATURED POST (luxury black card)
========================= */
.featured-post{
  background:
    radial-gradient(520px 260px at 15% 0%, rgba(0,230,164,.14), transparent 60%),
    radial-gradient(520px 260px at 90% 10%, rgba(0,119,255,.14), transparent 60%),
    rgba(0,0,0,.92);
  border-radius: var(--radius2);
  overflow:hidden;
  box-shadow: 0 28px 95px rgba(0,0,0,.20);
  border: 1px solid rgba(255,255,255,.10);
  margin-bottom: 28px;
}

.featured-media{
  width:100%;
  height: 260px;
  background:
    linear-gradient(180deg, rgba(0,0,0,.20), rgba(0,0,0,.65)),
    url("https://images.unsplash.com/photo-1555066931-4365d14bab8c?auto=format&fit=crop&q=60&w=1600")
    center/cover no-repeat;
}

.featured-body{ padding: 26px; }

.meta{
  display:flex;
  flex-wrap:wrap;
  gap: 12px;
  align-items:center;
  margin-bottom: 10px;
  font-size: .95rem;
  color: rgba(255,255,255,.78);
}

.badge{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 6px 12px;

  background: rgba(0,230,164,0.10);
  color: #00e6a4;
  border: 1px solid rgba(0,230,164,0.25);
  border-radius: 999px;
  font-size: .9rem;
}

.featured-body h3{
  color:#00e6a4;
  font-size: 1.65rem;
  margin-bottom: 10px;
  letter-spacing: -0.4px;
}

.featured-body p{
  color: rgba(255,255,255,.86);
  margin-bottom: 18px;
}

/* =========================
   POSTS GRID (elegant white cards)
========================= */
.post-grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.post{
  background: rgba(255,255,255,.92);
  border: 1px solid rgba(10,14,18,.08);
  border-radius: var(--radius2);
  overflow:hidden;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
  box-shadow: 0 18px 55px rgba(0,0,0,.06);
}

.post:hover{
  transform: translateY(-8px);
  box-shadow: 0 30px 95px rgba(0,0,0,.10);
  border-color: rgba(0,119,255,.18);
}

.post-media{
  height: 170px;
  width:100%;
  background:
    radial-gradient(520px 260px at 20% 0%, rgba(0,230,164,.14), transparent 60%),
    #0b1220;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#00e6a4;
  font-size: 2rem;
}

.post-body{ padding: 18px; }

.post-body h3{
  font-size: 1.15rem;
  color: rgba(10,14,18,.92);
  margin: 10px 0;
  letter-spacing: -0.2px;
}

.post-body p{
  font-size: .98rem;
  margin-bottom: 14px;
  color: rgba(10,14,18,.68);
}

.post-meta{
  display:flex;
  flex-wrap:wrap;
  gap: 12px;
  align-items:center;
  font-size: .9rem;
  color: rgba(10,14,18,.55);
}

.readmore{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  color: var(--blue);
  font-weight: 500;
}

.readmore:hover{
  text-decoration: underline;
}

/* =========================
   SIDEBAR (premium dark)
========================= */
.sidebar{
  position: sticky;
  top: 110px;
  display:grid;
  gap: 20px;
}

.side-card{
  background:
    radial-gradient(520px 260px at 10% 0%, rgba(0,230,164,.14), transparent 60%),
    radial-gradient(520px 260px at 95% 15%, rgba(0,119,255,.14), transparent 60%),
    rgba(0,0,0,.92);
  border-radius: var(--radius2);
  padding: 22px;
  color: white;
  box-shadow: 0 28px 95px rgba(0,0,0,.20);
  border: 1px solid rgba(255,255,255,.10);
}

.side-card h3{
  color:#00e6a4;
  margin-bottom: 12px;
}

.side-card p{
  opacity: .88;
  margin-bottom: 14px;
}

.side-list{
  list-style:none;
  display:grid;
  gap: 10px;
}

.side-list a{
  color: rgba(255,255,255,.90);
  display:flex;
  justify-content:space-between;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 14px;
  transition: transform .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}

.side-list a:hover{
  transform: translateY(-2px);
  border-color: rgba(0,230,164,0.30);
  background: rgba(0,230,164,0.08);
}

.pill{
  background: rgba(255,255,255,0.10);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: .85rem;
}

/* =========================
   NEWSLETTER CTA
========================= */
.newsletter{
  background:
    radial-gradient(900px 520px at 15% 10%, rgba(0,230,164,.14), transparent 55%),
    linear-gradient(135deg, var(--navy) 0%, #1a2d5e 100%);
  color:white;
  text-align:center;
  padding: 80px 0;
  border-top: 1px solid rgba(255,255,255,.06);
}

.newsletter h2{
  color:#00e6a4;
  margin-bottom: 12px;
}

.newsletter p{
  max-width: 720px;
  margin: 0 auto 22px;
  opacity: .92;
}

.newsletter-form{
  display:flex;
  gap: 10px;
  justify-content:center;
  flex-wrap: wrap;
}

.newsletter-form input{
  width: min(420px, 100%);
  padding: 14px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  outline:none;
  font-family: inherit;
  background: rgba(255,255,255,.10);
  color: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
}

.newsletter-form input::placeholder{
  color: rgba(255,255,255,.70);
}

/* =========================
   FOOTER (polished)
========================= */
footer{
  background: linear-gradient(180deg, #050607, #000000);
  color:white;
  padding: 70px 0 30px;
  border-top: 1px solid rgba(255,255,255,.08);
}

.footer-content{
  display:grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-col h3{
  color: var(--emerald);
  margin-bottom: 22px;
  font-size: 1.25rem;
  position:relative;
}

.footer-col h3:after{
  content:"";
  position:absolute;
  bottom:-10px;
  left:0;
  width: 42px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, #00e6a4, #0077ff);
}

.footer-col p{
  margin-bottom: 18px;
  opacity: .84;
}

.footer-links{ list-style:none; }
.footer-links li{ margin-bottom: 12px; }

.footer-links a{
  color: rgba(255,255,255,.86);
  opacity: .85;
  transition: opacity .25s var(--ease), transform .25s var(--ease);
}

.footer-links a:hover{
  opacity: 1;
  transform: translateX(2px);
}

.social-links{
  display:flex;
  gap: 12px;
  margin-top: 18px;
}

.social-link{
  width: 42px;
  height: 42px;
  border-radius: 999px;
  display:flex;
  align-items:center;
  justify-content:center;

  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.10);
  transition: transform .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
}

.social-link:hover{
  transform: translateY(-2px);
  background: rgba(0,119,255,.18);
  border-color: rgba(0,119,255,.35);
}

.footer-bottom{
  text-align:center;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,.10);
  opacity: .72;
  font-size: .92rem;
}

/* =========================
   ANIMATIONS
========================= */
@keyframes fadeInUp{
  from{ opacity:0; transform: translateY(30px); }
  to{ opacity:1; transform: translateY(0); }
}

@keyframes float{
  0%, 100%{ transform: translateY(0) rotate(0deg); }
  50%{ transform: translateY(-20px) rotate(4deg); }
}

/* =========================
   RESPONSIVE
========================= */
@media (max-width: 992px){
  :root{ --nav-h: 80px; }
  body{ padding-top: var(--nav-h); }

  .blog-layout{ grid-template-columns: 1fr; }
  .sidebar{ position: relative; top: 0; }
  .footer-content{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px){
  .mobile-menu{ display:flex; }

  /* Premium dropdown panel */
  .nav-links{
    display:flex;
    flex-direction:column;
    gap: 8px;

    position:absolute;
    top: calc(var(--nav-h) + 10px);
    left: 14px;
    right: 14px;

    padding: 14px;
    border-radius: 22px;

    background:
      radial-gradient(520px 260px at 20% 0%, rgba(0,230,164,.18), transparent 60%),
      radial-gradient(520px 260px at 90% 10%, rgba(0,119,255,.18), transparent 60%),
      rgba(0,0,0,.86);

    border: 1px solid rgba(255,255,255,.14);
    box-shadow: 0 28px 90px rgba(0,0,0,.45);

    opacity:0;
    transform: translateY(-12px);
    pointer-events:none;
    transition: opacity .22s var(--ease), transform .22s var(--ease);
  }

  .nav-links.active{
    opacity:1;
    transform: translateY(0);
    pointer-events:auto;
  }

  .nav-links li{ margin:0; }

  .nav-links a{
    width:100%;
    padding: 13px 14px;
    border-radius: 16px;
    color: rgba(255,255,255,.94);
    font-weight: 500;

    display:flex;
    align-items:center;
    justify-content:space-between;

    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.08);
  }

  .nav-links a:hover{
    background: rgba(255,255,255,.08);
    border-color: rgba(0,230,164,.22);
    transform: translateX(2px);
  }

  .nav-links a::after{ display:none; }

  .hero h1{ font-size: 2.3rem; }
  .hero-btns{
    flex-direction:column;
    align-items:center;
  }
  .hero-btns .btn{ width:100%; max-width: 280px; }

  .footer-content{ grid-template-columns: 1fr; }

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

@media (prefers-reduced-motion: reduce){
  *{ animation:none !important; transition:none !important; scroll-behavior:auto !important; }
}