/* =========================================================
   CALCULAXY — HOME PAGE STYLESHEET
   Loaded only on index.php, on top of base.css / header.css / footer.css
   ========================================================= */

/* ============ HERO ============ */
.hero{
  background:linear-gradient(180deg, var(--surface) 0%, var(--white) 100%);
  padding:72px 0 64px;position:relative;overflow:hidden;
}
.hero-symbols{position:absolute;inset:0;pointer-events:none;}
.hero-symbols span{position:absolute;font-weight:700;color:var(--primary);opacity:0.12;font-size:40px;}
.hero-inner{display:grid;grid-template-columns:1.1fr 0.9fr;gap:48px;align-items:center;position:relative;}
.hero h1{font-size:44px;letter-spacing:-0.015em;max-width:13ch;}
.hero-sub{font-size:17px;max-width:46ch;}

.hero-search-wrap{position:relative;max-width:460px;margin-bottom:14px;}
.hero-search{
  display:flex;border:1px solid var(--border);background:var(--white);border-radius:10px;
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.hero-search input{flex:1;border:none;outline:none;padding:15px 16px;font-family:inherit;font-size:15px;}
.hero-search button{border:none;background:var(--primary);color:var(--white);font-weight:700;font-family:inherit;padding:0 24px;cursor:pointer;}
.hero-search button:hover{background:var(--primary-dark);}

#live-results{
  position:absolute;left:0;right:0;top:calc(100% + 6px);background:var(--white);
  border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 12px 28px rgba(22,35,58,0.12);
  overflow:hidden;display:none;z-index:40;
}
#live-results.show{display:block;}
#live-results a{display:flex;justify-content:space-between;gap:10px;padding:12px 18px;font-size:14.5px;font-weight:600;border-bottom:1px solid var(--border);}
#live-results a:last-child{border-bottom:none;}
#live-results a:hover{background:var(--surface);}
#live-results .no-match{padding:14px 18px;font-size:14px;color:var(--slate);font-weight:400;}
#live-results .mini-tag{font-size:11px;font-weight:700;color:var(--primary-dark);}

.hero-link{font-weight:600;font-size:14px;color:var(--primary-dark);border-bottom:1px solid transparent;}
.hero-link:hover{border-bottom-color:var(--primary-dark);}

/* Calculator mockup graphic */
.calc-mock{
  background:var(--ink);border-radius:20px;padding:22px;max-width:300px;margin-left:auto;
  box-shadow:0 20px 40px -18px rgba(22,35,47,0.35);
}
.calc-mock-screen{background:#0e1922;border-radius:12px;padding:22px 18px;display:flex;flex-direction:column;align-items:flex-end;gap:6px;margin-bottom:16px;}
.calc-mock-expression{font-family:'Courier New', monospace;color:#6f8ea3;font-size:14px;}
.calc-mock-result{font-family:'Courier New', monospace;color:var(--white);font-size:34px;font-weight:700;}
.calc-mock-keys{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;}
.calc-mock-keys span{background:#22323f;color:var(--white);font-family:'Courier New', monospace;font-size:16px;border-radius:8px;display:flex;align-items:center;justify-content:center;height:44px;}
.calc-mock-keys .op{background:#2c3e4d;color:var(--primary);}
.calc-mock-keys .equals{background:var(--primary);color:var(--ink);font-weight:700;}

/* ============ HOW IT WORKS ============ */
.how-it-works{padding:72px 0;}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.step-card{position:relative;padding:28px 24px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);}
.step-number{
  width:34px;height:34px;border-radius:50%;background:var(--primary);color:var(--white);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;margin-bottom:16px;
}
.step-card h3{font-size:17px;margin-bottom:8px;}
.step-card p{font-size:14.5px;margin:0;}

/* ============ CATEGORIES ============ */
.categories{padding:72px 0;}
.category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;}
.category-card{
  background:var(--white);border:1px solid var(--border);border-top:3px solid transparent;
  border-radius:var(--radius);padding:24px 20px;transition:border-color .15s ease, transform .15s ease;
}
.category-card:hover{border-top-color:var(--primary);transform:translateY(-3px);}
.category-icon{
  width:46px;height:46px;border-radius:10px;background:var(--primary-tint);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.category-card h3{font-size:17px;margin-bottom:6px;}
.category-card p{font-size:13.5px;margin:0 0 10px;}
.category-count{font-size:12.5px;font-weight:700;color:var(--primary-dark);}

/* ============ POPULAR TOOLS ============ */
.popular{padding:72px 0;background:var(--surface);}
.tool-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
.tool-row{
  display:flex;align-items:center;justify-content:space-between;background:var(--white);
  border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px;transition:border-color .15s ease, box-shadow .15s ease;
}
.tool-row:hover{border-color:var(--primary);box-shadow:0 6px 16px rgba(22,35,58,0.06);}
.tool-name{font-weight:700;font-size:15px;}
.tool-cat{font-size:12.5px;font-weight:600;color:var(--primary-dark);background:var(--primary-tint);padding:4px 10px;border-radius:999px;flex-shrink:0;}

/* ============ INTRO TEXT ============ */
.intro{padding:72px 0;}
.intro-text{max-width:760px;margin:0 auto;}
.intro-text p{font-size:15.5px;}

/* ============ WHY ============ */
.why{padding:72px 0;background:var(--surface);}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
.why-item{text-align:center;padding:0 10px;}
.why-icon{width:52px;height:52px;border-radius:50%;background:var(--primary-tint);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;}
.why-icon svg{width:24px;height:24px;color:var(--primary-dark);}
.why-item h3{font-size:18px;margin-bottom:8px;}
.why-item p{font-size:14.5px;margin:0;}

/* ============ RESPONSIVE ============ */
@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr;}
  .calc-mock{margin:0 auto;}
  .hero h1{max-width:none;font-size:36px;}
  .steps-grid{grid-template-columns:1fr;}
  .category-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:720px){
  .hero{padding:40px 0 48px;}
  .hero h1{font-size:30px;}
  .category-grid{grid-template-columns:repeat(2,1fr);}
  .tool-grid{grid-template-columns:1fr;}
  .why-grid{grid-template-columns:1fr;}
}