/* ========================================
   DroneSurveyCR — Shared Stylesheet
   Performance-optimized, minified core
   ======================================== */

/* Reset & Base */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:16px;line-height:1.6;color:#5C5C69;background:#fff;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
h1,h2,h3,h4,h5,h6{font-family:'IBM Plex Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#302F40;font-weight:600;line-height:1.25}
img{max-width:100%;height:auto;display:block}
a{color:#0080FE;text-decoration:none;transition:color .2s}
a:hover{color:#005BB3}

/* Layout */
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.container-lg{max-width:1200px;margin:0 auto;padding:0 20px}

/* ── HEADER ── */
#sp-header{background:#fff;border-bottom:1px solid #eee;padding:12px 0;position:sticky;top:0;z-index:200}
#sp-header .header-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}
#sp-header .logo img{height:36px;display:block}
#sp-header nav{display:flex;flex-wrap:wrap;gap:4px;align-items:center}
#sp-header nav a{text-decoration:none;color:#302F40;padding:8px 12px;font-weight:500;font-size:14px;border-radius:4px;transition:color .2s,background .2s}
#sp-header nav a:hover{color:#0080FE;background:rgba(0,128,254,.06)}
#sp-header .dropdown{position:relative}
#sp-header .dropdown > a::after{content:'▾';margin-left:4px;font-size:10px}
#sp-header .dropdown ul{display:none;position:absolute;top:100%;left:0;background:#fff;border:1px solid #eee;border-radius:6px;box-shadow:0 4px 16px rgba(0,0,0,.08);min-width:180px;padding:6px 0;z-index:300}
#sp-header .dropdown:hover ul{display:block}
#sp-header .dropdown ul a{display:block;padding:8px 16px;font-size:13px;white-space:nowrap}
#sp-header .nav-wa{background:#25D366;color:#fff!important;padding:8px 16px;border-radius:6px;font-weight:600}
#sp-header .nav-wa:hover{background:#1fb956;color:#fff!important}

/* ── FOOTER ── */
.site-footer{background:#302F40;color:#ccc;padding:50px 20px 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
.footer-grid h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;text-transform:uppercase;letter-spacing:.5px}
.footer-grid p{font-size:13px;line-height:1.7;color:#9ca3b0}
.footer-grid ul{list-style:none}
.footer-grid li{margin-bottom:8px}
.footer-grid a{color:#60a5fa;font-size:13px;text-decoration:none}
.footer-grid a:hover{color:#fff;text-decoration:underline}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:20px;text-align:center;font-size:12px;color:#777}
.footer-bottom a{color:#60a5fa}

/* ── BUTTONS ── */
.btn{display:inline-block;padding:12px 28px;border-radius:6px;font-weight:600;font-size:15px;text-align:center;cursor:pointer;transition:all .2s;border:2px solid transparent;text-decoration:none;font-family:'IBM Plex Sans',sans-serif}
.btn-primary{background:#0080FE;color:#fff;border-color:#0080FE}
.btn-primary:hover{background:#006ce0;border-color:#006ce0;color:#fff}
.btn-secondary{background:#302F40;color:#fff;border-color:#302F40}
.btn-secondary:hover{background:#1a1820;color:#fff}
.btn-outline{background:transparent;color:#0080FE;border-color:#0080FE}
.btn-outline:hover{background:#0080FE;color:#fff}
.btn-wa{background:#25D366;color:#fff;border-color:#25D366}
.btn-wa:hover{background:#1fb956;color:#fff}
.btn-white{background:#fff;color:#302F40;border-color:#fff}
.btn-white:hover{background:transparent;color:#fff;border-color:#fff}

/* ── HERO (common pattern) ── */
.hero{background:linear-gradient(135deg,#302F40 0%,#0d1b2a 100%);color:#fff;padding:80px 20px;text-align:center}
.hero h1{color:#fff;font-size:clamp(32px,5vw,52px);font-weight:700;margin-bottom:16px}
.hero .subtitle{font-size:clamp(16px,2vw,20px);color:#ddd;max-width:700px;margin:0 auto 32px}

/* ── CTA Section ── */
.cta-section{background:linear-gradient(135deg,#302F40,#0080FE);color:#fff;padding:60px 20px;text-align:center;border-radius:8px;margin:40px 0}
.cta-section h2{color:#fff;margin-bottom:16px}
.cta-section p{font-size:18px;margin-bottom:30px;opacity:.95}
.cta-buttons{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ── Cards/Grid ── */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin:30px 0}
.card{background:#fff;border:1px solid #e8eaf0;border-radius:10px;padding:28px;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.08)}
.card h3{margin-bottom:10px;font-size:18px}
.card p{font-size:14px;line-height:1.7;color:#5c5c69}

/* ── Spec Cards ── */
.spec-card{background:#f8f9fa;padding:24px;border-left:4px solid #0080FE;border-radius:4px}
.spec-card h4{color:#0080FE;margin-bottom:8px;font-size:16px}
.spec-card p{font-size:14px;margin:0;color:#5c5c69}

/* ── FAQ ── */
.faq-item{border-bottom:1px solid #e5e5ea;padding:16px 0}
.faq-question{cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#302F40;font-family:'IBM Plex Sans',sans-serif;font-size:16px;padding:4px 0;user-select:none}
.faq-question:hover{color:#0080FE}
.faq-toggle{color:#0080FE;font-size:18px;transition:transform .3s}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s;color:#5c5c69;font-size:15px;line-height:1.7}
.faq-item.active .faq-answer{max-height:600px;padding-top:12px}
.faq-item.active .faq-toggle{transform:rotate(180deg)}

/* ── Deliverables ── */
.checklist{list-style:none}
.checklist li{padding:10px 0 10px 28px;position:relative;border-bottom:1px solid #f0f0f0;font-size:14px}
.checklist li::before{content:"✓";position:absolute;left:0;color:#0080FE;font-weight:700}

/* ── Pricing Box ── */
.pricing-box{background:#302F40;color:#fff;padding:32px;border-radius:8px;text-align:center;margin:24px 0}
.pricing-box h3{color:#0080FE;margin-bottom:16px}
.pricing-box .price{font-size:28px;font-weight:700;color:#0080FE;font-family:'IBM Plex Sans',sans-serif;margin:12px 0}

/* ── Section utilities ── */
.section{padding:70px 0}
.section-label{text-transform:uppercase;font-size:12px;font-weight:700;letter-spacing:1.5px;color:#0080FE;margin-bottom:10px}
.bg-light{background:#f8f9fc}
.text-center{text-align:center}
.mb-0{margin-bottom:0}
.mb-16{margin-bottom:16px}
.mb-24{margin-bottom:24px}
.mb-32{margin-bottom:32px}

/* ── Responsive ── */
@media(max-width:768px){
  #sp-header .header-inner{flex-direction:column;gap:8px}
  #sp-header nav{justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .hero{padding:50px 20px}
  .cta-buttons{flex-direction:column}
  .cta-buttons .btn{width:100%}
}
@media(max-width:480px){
  #sp-header nav a{padding:6px 8px;font-size:13px}
}

/* ── Print ── */
@media print{#sp-header,.site-footer,.cta-section{display:none}body{color:#000;background:#fff}}