:root{
  --sky:#38bdf8;
  --sky-dark:#0ea5e9;
  --black:#05070b;
  --black-soft:#111827;
  --white:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#dbeafe;
  --bg:#f8fbff;
  --card:#ffffff;
  --section:#f0f9ff;
}
body.dark{
  --white:#020617;
  --text:#e2e8f0;
  --muted:#94a3b8;
  --border:#1e293b;
  --bg:#020617;
  --card:#0f172a;
  --section:#06101f;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);transition:background .25s,color .25s}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(1180px,92%);margin:0 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 22px;border-radius:16px;font-weight:700;border:none;cursor:pointer;transition:.2s}
.btn-primary{background:var(--sky);color:#fff}
.btn-primary:hover{background:var(--sky-dark);transform:translateY(-1px)}
.btn-dark{background:var(--black);color:#fff}
.btn-dark:hover{background:var(--black-soft)}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--sky);color:var(--sky-dark)}
header.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
body.dark header.site-header{background:rgba(2,6,23,.88)}
.nav{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 0}
.brand h1{margin:0;font-size:28px;color:var(--text)}
.brand p{margin:3px 0 0;font-size:12px;color:var(--muted)}
.nav-links{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.nav-links a{color:var(--muted)}
.nav-links a:hover{color:var(--sky-dark)}
.toggle-btn{width:46px;height:46px;border-radius:14px;border:1px solid var(--border);background:var(--card);cursor:pointer;color:var(--text)}
.hero{padding:72px 0;background:linear-gradient(135deg,#fff 0%,#f0f9ff 50%,#e0f2fe 100%);overflow:hidden}
body.dark .hero{background:linear-gradient(135deg,#020617 0%,#041225 50%,#082f49 100%)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center}
.badge{display:inline-block;padding:8px 14px;border-radius:999px;background:#e0f2fe;border:1px solid #bae6fd;color:#0369a1;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.hero h2{font-size:58px;line-height:1.05;margin:16px 0 12px;color:var(--text)}
.hero p{font-size:18px;line-height:1.7;color:var(--muted)}
.typing{font-size:20px;font-weight:700;color:var(--sky-dark);min-height:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-card{background:rgba(255,255,255,.65);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.45);border-radius:28px;padding:18px;box-shadow:0 20px 50px rgba(2,6,23,.12)}
body.dark .hero-card{background:rgba(15,23,42,.75);border-color:#1e293b}
.hero-photo{border-radius:24px;overflow:hidden;height:520px;border:1px solid var(--border)}
.hero-photo img{width:100%;height:100%;object-fit:cover}
.floating{animation:floatCard 4s ease-in-out infinite}
@keyframes floatCard{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.section{padding:74px 0}
.section-alt{background:var(--section)}
.section-head{text-align:center;max-width:780px;margin:0 auto 38px}
.section-head span{display:inline-block;color:var(--sky-dark);text-transform:uppercase;letter-spacing:.18em;font-size:13px;font-weight:700}
.section-head h3{font-size:40px;margin:12px 0;color:var(--text)}
.section-head p{color:var(--muted);line-height:1.7;font-size:17px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--border);border-radius:24px;box-shadow:0 10px 28px rgba(2,6,23,.05);overflow:hidden}
.card-pad{padding:22px}
.card h4{margin:0 0 10px;font-size:22px}
.muted{color:var(--muted);line-height:1.7}
.project-img,.course-img{height:220px;overflow:hidden}
.project-img img,.course-img img{width:100%;height:100%;object-fit:cover}
.tag{display:inline-block;padding:7px 12px;border-radius:999px;background:#e0f2fe;color:#0369a1;font-size:12px;font-weight:700;margin-bottom:10px}
.skill-item{text-align:center;padding:24px 14px}
.skill-num{font-size:32px;font-weight:800;color:var(--sky-dark)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:24px}
.stat{background:var(--card);border:1px solid var(--border);border-radius:22px;padding:22px;text-align:center}
.stat strong{display:block;font-size:36px;margin-top:8px}
.contact{background:var(--black);color:#fff}
.contact p{color:#cbd5e1}
.contact-list div{margin-bottom:12px}
.whatsapp-float{position:fixed;right:18px;bottom:18px;width:60px;height:60px;border-radius:50%;display:grid;place-items:center;background:#25D366;color:#fff;font-size:28px;box-shadow:0 12px 28px rgba(0,0,0,.18);z-index:90}
.preloader{position:fixed;inset:0;z-index:999;background:linear-gradient(180deg,#e0f2fe,#f8fbff);display:flex;align-items:center;justify-content:center;flex-direction:column;gap:16px;transition:opacity .35s ease,visibility .35s ease}
.preloader.hide{opacity:0;visibility:hidden}
.rocket{font-size:58px;animation:rocketMove 1.2s infinite ease-in-out}
.loader-text{font-weight:800;color:#0369a1;letter-spacing:.08em}
.loader-line{width:180px;height:8px;border-radius:999px;background:#bae6fd;overflow:hidden}
.loader-line span{display:block;height:100%;width:40%;background:#38bdf8;border-radius:999px;animation:loadBar 1.2s infinite}
@keyframes rocketMove{0%,100%{transform:translateY(0) rotate(-8deg)}50%{transform:translateY(-14px) rotate(8deg)}}
@keyframes loadBar{0%{transform:translateX(-120%)}100%{transform:translateX(360%)}}
.admin-wrap{display:grid;grid-template-columns:270px 1fr;min-height:100vh;background:#f8fafc}
.sidebar{background:#020617;color:#fff;padding:24px;position:sticky;top:0;height:100vh}
.sidebar h2{margin:0;font-size:24px}
.sidebar p{color:#94a3b8;font-size:13px}
.side-link{display:block;padding:14px 16px;border-radius:16px;background:rgba(255,255,255,.05);margin-top:10px}
.side-link:hover{background:rgba(56,189,248,.16)}
.main{padding:26px}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:15px;flex-wrap:wrap}
.panel{background:#fff;border:1px solid #dbeafe;border-radius:24px;padding:22px;margin-top:22px}
.panel h3{margin-top:0}
input,textarea,select{width:100%;padding:13px 14px;border:1px solid #cbd5e1;border-radius:14px;font:inherit;background:#fff}
textarea{min-height:110px;resize:vertical}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid .full{grid-column:1/-1}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:12px 10px;border-bottom:1px solid #e2e8f0;vertical-align:top}
.thumb{width:74px;height:74px;object-fit:cover;border-radius:14px}
.notice{padding:12px 14px;border-radius:14px;background:#ecfeff;color:#075985;margin:14px 0}
.error{padding:12px 14px;border-radius:14px;background:#fef2f2;color:#991b1b;margin:14px 0}
.small{font-size:13px;color:#64748b}
.login-page{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#020617,#0c4a6e)}
.login-card{width:min(430px,92%);background:#fff;border-radius:28px;padding:28px;box-shadow:0 18px 40px rgba(0,0,0,.2)}
@media (max-width:980px){
  .hero-grid,.grid-2,.grid-3,.grid-4,.admin-wrap,.form-grid,.stats{grid-template-columns:1fr}
  .hero h2{font-size:42px}
  .hero-photo{height:360px}
  .sidebar{position:relative;height:auto}
}


.nav-actions{display:flex;align-items:center;gap:10px}
.menu-toggle,.menu-close{
  width:46px;
  height:46px;
  border-radius:14px;
  border:1px solid var(--border);
  background:var(--card);
  cursor:pointer;
  color:var(--text);
  font-size:24px;
  line-height:1;
}
.menu-toggle{display:none}
.mobile-backdrop{display:none}

@media (max-width: 768px){
  .nav{
    align-items:flex-start;
  }

  .brand h1{
    font-size:22px;
  }

  .brand p{
    font-size:11px;
  }

  .menu-toggle{
    display:inline-flex;
    align-items:center;
    justify-content:center;
  }

  .nav-links{
    position:fixed;
    top:0;
    right:0;
    width:min(82vw, 320px);
    height:100vh;
    background:var(--card);
    border-left:1px solid var(--border);
    box-shadow:-10px 0 30px rgba(0,0,0,.14);
    display:flex;
    flex-direction:column;
    gap:14px;
    padding:18px;
    transform:translateX(100%);
    transition:transform .28s ease;
    z-index:120;
  }

  .nav-links.show{
    transform:translateX(0);
  }

  .mobile-menu-top{
    display:flex;
    align-items:center;
    justify-content:space-between;
    margin-bottom:8px;
  }

  .nav-links a{
    width:100%;
    padding:10px 0;
    border-bottom:1px solid var(--border);
    color:var(--text);
  }

  .mobile-backdrop.show{
    display:block;
    position:fixed;
    inset:0;
    background:rgba(2,6,23,.35);
    backdrop-filter:blur(3px);
    z-index:110;
  }
}


.scroll-row{
  display:flex;
  gap:18px;
  overflow-x:auto;
  padding-bottom:10px;
  scrollbar-width:thin;
  scrollbar-color:var(--sky) transparent;
}
.scroll-row::-webkit-scrollbar{height:10px}
.scroll-row::-webkit-scrollbar-thumb{background:var(--sky);border-radius:999px}
.scroll-card{flex:0 0 290px}
.scroll-card.wide{flex-basis:330px}

.btn-small{padding:10px 14px;border-radius:12px;font-size:13px}
.admin-stats-grid{grid-template-columns:repeat(6,1fr)}
.user-body{background:linear-gradient(180deg,#f8fbff,#eef8ff)}
.user-layout{display:grid;grid-template-columns:280px 1fr;min-height:100vh}
.user-sidebar{background:#020617;color:#fff;padding:24px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:10px}
.user-sidebar a{padding:14px 16px;border-radius:16px;background:rgba(255,255,255,.05)}
.user-sidebar a:hover{background:rgba(56,189,248,.16)}
.user-main{padding:24px}
.user-topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}
.user-hero-card{background:var(--card);border:1px solid var(--border);border-radius:28px;padding:28px;text-align:center;box-shadow:0 10px 28px rgba(2,6,23,.05);margin-bottom:22px}
.user-avatar{width:120px;height:120px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:4px solid #e0f2fe;background:#fff}
.user-title{font-weight:700;color:var(--sky-dark);margin-top:4px}
.thumb-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.thumb-card{background:var(--card);border:1px solid var(--border);border-radius:22px;overflow:hidden}
.thumb-card img{width:100%;height:180px;object-fit:cover}
.service-search-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:18px}
.invoice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.invoice-card{background:#fff;border:1px solid #dbeafe;border-radius:24px;padding:22px}
.invoice-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px}
.user-sidebar-top{display:none}
@media (max-width:980px){
  .admin-stats-grid{grid-template-columns:1fr 1fr}
  .user-layout,.thumb-grid,.service-search-grid,.invoice-grid{grid-template-columns:1fr}
  .user-sidebar{position:fixed;left:0;top:0;bottom:0;height:100vh;width:min(82vw,320px);transform:translateX(-100%);transition:transform .28s ease;z-index:120}
  .user-sidebar.show{transform:translateX(0)}
  .user-sidebar-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
}