/* ═══════════════════════════════════════════════════
   NEXTSTEPAPI — GLOBAL DESIGN SYSTEM & THEME
═══════════════════════════════════════════════════ */
:root {
  /* Brand Tokens (Logo matched) */
  --teal:        #0A9396;
  --teal-dk:     #087072;
  --teal-lt:     #14B8BB;
  --blue:        #1565C0;
  --blue-dk:     #1A237E;
  --cyan:        #00B4D8;
  --cyan-lt:     #90E0EF;
  --green:       #06D6A0;
  --orange:      #F77F00;
  --purple:      #7C3AED;

  /* Neutrals */
  --hero-bg:     #06101E;
  --hero-bg2:    #0B1A2E;
  --text-dark:   #111827;
  --text-med:    #374151;
  --text-gray:   #6B7280;
  --text-muted:  #9CA3AF;
  --text-dim:    rgba(255,255,255,0.7);
  --border-l:    #E2E8F0;
  --border-d:    rgba(255,255,255,0.08);
  --border-glow: rgba(10,147,150,0.25);
  --bg-light:    #F8FAFC;

  /* Shadows & Radius */
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:   0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg:   0 10px 30px rgba(0,0,0,0.08);
  --shadow-glow: 0 0 40px rgba(0,180,216,0.22);
  --radius-s:    8px;
  --radius-m:    12px;
  --radius-l:    18px;
  --radius-xl:   28px;
  --ease:        all 0.25s cubic-bezier(0.4,0,0.2,1);
  --navbar-h:    72px;

  /* Typography */
  --font-body:   'Inter', sans-serif;
  --font-head:   'Space Grotesk', sans-serif;
  --font-mono:   'JetBrains Mono', monospace;
}

/* ── Reset & Base ───────────────────────────────── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family:var(--font-body);
  color:var(--text-dark);
  background:#fff;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a, a:hover, a:focus, a:visited {
  text-decoration: none !important;
}
img { max-width: 100%; }
/* ══════════════════════════════════════════════════
   PAGE LOADER
══════════════════════════════════════════════════ */
#page-loader {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  width: 100vw; height: 100vh;
  z-index: 999999;
  background: #06101E;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
#page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.loader-ring {
  width: 56px;
  height: 56px;
  border: 3px solid rgba(10, 147, 150, 0.2);
  border-top: 3px solid #0A9396;
  border-radius: 50%;
  animation: nsaSpin 0.8s linear infinite;
}
.loader-text {
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.08em;
}
@keyframes nsaSpin {
  to { transform: rotate(360deg); }
}

/* ══════════════════════════════════════════════════
   NAVBAR (White Theme with Logo)
══════════════════════════════════════════════════ */
.nsa-navbar {
  position:fixed; top:0; left:0; right:0;
  height:var(--navbar-h);
  background:#fff;
  border-bottom:1px solid var(--border-l);
  box-shadow:var(--shadow-sm);
  z-index:1000;
  transition:box-shadow .3s;
}
.nsa-navbar.scrolled { box-shadow:0 4px 24px rgba(0,0,0,0.10); }

.nsa-nav-wrap {
  height:100%;
  max-width:1280px; margin:0 auto;
  padding:0 32px;
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.nav-logo img { height:46px; width:auto; object-fit:contain; }

.nav-links { display:flex; gap:2px; list-style:none; }
.nav-links a {
  display:block; padding:8px 15px;
  font-size:.875rem; font-weight:600; color:var(--text-med);
  border-radius:var(--radius-s); transition:var(--ease);
  position:relative;
}
.nav-links a:hover { color:var(--teal); background:rgba(10,147,150,.06); }
.nav-links a.active { color:var(--teal); background:rgba(10,147,150,.08); }
.nav-links a.active::after {
  content:''; position:absolute;
  bottom:5px; left:50%; transform:translateX(-50%);
  width:4px; height:4px; border-radius:50%; background:var(--teal);
}

.nav-cta { display:flex; align-items:center; gap:10px; flex-shrink:0; }
.btn-login {
  padding:8px 18px; font-size:.875rem; font-weight:600;
  color:var(--text-med); border:1.5px solid var(--border-l);
  border-radius:var(--radius-s); background:transparent; transition:var(--ease);
}
.btn-login:hover { color:var(--teal); border-color:var(--teal); background:rgba(10,147,150,.04); }
.btn-getstarted {
  display:flex; align-items:center; gap:7px;
  padding:9px 20px; font-size:.875rem; font-weight:700; color:#fff;
  background:linear-gradient(135deg, var(--teal) 0%, var(--blue) 100%);
  border-radius:var(--radius-s);
  box-shadow:0 4px 14px rgba(10,147,150,.28);
  transition:var(--ease);
}
.btn-getstarted:hover { transform:translateY(-1px); box-shadow:0 6px 20px rgba(10,147,150,.42); }

.hamburger { display:none; flex-direction:column; gap:5px; cursor:pointer; background:none; border:none; padding:4px; }
.hamburger span { display:block; width:22px; height:2px; background:var(--text-med); border-radius:2px; }

.mob-menu {
  position:fixed; top:var(--navbar-h); left:0; right:0;
  background:#fff; border-bottom:1px solid var(--border-l);
  box-shadow:0 8px 24px rgba(0,0,0,.1);
  padding:20px 32px 28px;
  display:flex; flex-direction:column; gap:4px;
  transform:translateY(-110%);
  transition:transform .35s cubic-bezier(.4,0,.2,1);
  z-index:999;
}
.mob-menu.open { transform:translateY(0); }
.mob-menu a { display:block; padding:13px 0; font-size:1rem; font-weight:600; color:var(--text-med); border-bottom:1px solid #F3F4F6; }
.mob-menu a:hover { color:var(--teal); }
.mob-menu .btn-getstarted { margin-top:12px; justify-content:center; padding:13px 20px; }

/* ══════════════════════════════════════════════════
   GLOBAL BUTTONS
══════════════════════════════════════════════════ */
.btn-primary {
  display:inline-flex; align-items:center; gap:9px;
  padding:14px 28px; font-size:.95rem; font-weight:700; color:#fff;
  background:linear-gradient(135deg, var(--teal) 0%, var(--blue) 100%);
  border-radius:var(--radius-m);
  box-shadow:0 6px 22px rgba(10,147,150,.35);
  transition:var(--ease); position:relative; overflow:hidden;
}
.btn-primary::after {
  content:''; position:absolute; inset:0;
  background:linear-gradient(135deg,var(--teal-dk),#1448a0);
  opacity:0; transition:opacity .3s;
}
.btn-primary:hover::after { opacity:1; }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 10px 30px rgba(10,147,150,.48); color:#fff; }
.btn-primary > * { position:relative; z-index:1; }

.btn-ghost {
  display:inline-flex; align-items:center; gap:9px;
  padding:14px 28px; font-size:.95rem; font-weight:600;
  color:rgba(255,255,255,.75); background:transparent;
  border:1px solid var(--border-d); border-radius:var(--radius-m);
  transition:var(--ease);
}
.btn-ghost:hover { color:#fff; border-color:rgba(0,180,216,.4); background:rgba(0,180,216,.06); transform:translateY(-2px); }

/* ══════════════════════════════════════════════════
   SECTION LAYOUT HELPERS
══════════════════════════════════════════════════ */
.section { padding:90px 0; }
.section-light { background:var(--bg-light); }
.section-white { background:#fff; }
.section-dark  { background:linear-gradient(135deg, #0F4C75 0%, #0096C7 100%); position:relative; overflow:hidden; }

.nsa-container { max-width:1280px; margin:0 auto; padding:0 32px; }

.sec-label {
  display:inline-block; padding:5px 14px;
  background:rgba(10,147,150,.08); border:1px solid rgba(10,147,150,.2);
  border-radius:100px; font-size:.72rem; font-weight:700;
  letter-spacing:.07em; text-transform:uppercase; color:var(--teal);
  margin-bottom:14px;
}
.sec-title { font-family:var(--font-head); font-size:clamp(1.8rem,3.5vw,2.6rem); font-weight:800; letter-spacing:-.03em; color:var(--text-dark); line-height:1.15; margin-bottom:14px; }
.sec-sub   { font-size:1rem; color:var(--text-gray); line-height:1.7; max-width:560px; margin:0 auto; }

/* Grid helpers */
.row { display:grid; gap:24px; }
.cols-4 { grid-template-columns:repeat(4,1fr); }
.cols-3 { grid-template-columns:repeat(3,1fr); }
.cols-2-1 { grid-template-columns:5fr 7fr; align-items:center; gap:56px; }
.text-center { text-align:center; }
.mb-5 { margin-bottom:48px; }
.mt-5 { margin-top:48px; }
.mt-3 { margin-top:24px; }

/* Fade-up animation */
.fade-up { opacity:0; transform:translateY(30px); transition:opacity .6s ease, transform .6s ease; }
.fade-up.visible { opacity:1; transform:translateY(0); }

/* ══════════════════════════════════════════════════
   FOOTER (Dark Theme)
══════════════════════════════════════════════════ */
.nsa-footer { background:#06101E; color:rgba(255,255,255,.6); margin-top:0; }
.footer-wave { line-height:0; }
.footer-wave svg { display:block; width:100%; height:60px; }
.footer-body { padding:50px 0 0; }
.footer-logo img { height:40px; width:auto; object-fit:contain; }
.footer-desc { font-size:.875rem; color:rgba(255,255,255,.45); line-height:1.65; margin-top:14px; max-width:280px; }
.footer-socials { display:flex; gap:10px; margin-top:20px; }
.social-btn {
  width:36px; height:36px; border-radius:var(--radius-s);
  background:rgba(255,255,255,.07); border:1px solid rgba(255,255,255,.1);
  display:flex; align-items:center; justify-content:center;
  color:rgba(255,255,255,.5); font-size:.85rem; transition:var(--ease);
}
.social-btn:hover { background:var(--teal); color:#fff; border-color:var(--teal); }
.footer-heading { font-family:var(--font-head); font-size:.8rem; font-weight:700; text-transform:uppercase; letter-spacing:.08em; color:rgba(255,255,255,.35); margin-bottom:16px; }
.footer-links { list-style:none; display:flex; flex-direction:column; gap:10px; }
.footer-links a { font-size:.875rem; color:rgba(255,255,255,.5); transition:color .2s; }
.footer-links a:hover { color:#fff; }
.footer-newsletter { display:flex; gap:0; margin-top:10px; }
.footer-newsletter input {
  flex:1; padding:10px 14px; font-size:.85rem;
  background:rgba(255,255,255,.07); border:1px solid rgba(255,255,255,.12);
  border-right:none; border-radius:var(--radius-s) 0 0 var(--radius-s);
  color:#fff; outline:none;
}
.footer-newsletter input::placeholder { color:rgba(255,255,255,.3); }
.footer-newsletter button {
  padding:10px 14px; background:var(--teal); border:none;
  border-radius:0 var(--radius-s) var(--radius-s) 0;
  color:#fff; cursor:pointer; font-size:.9rem; transition:var(--ease);
}
.footer-newsletter button:hover { background:var(--teal-dk); }
.footer-badges { display:flex; flex-direction:column; gap:6px; margin-top:14px; }
.badge-item { display:flex; align-items:center; gap:6px; font-size:.75rem; color:rgba(255,255,255,.4); }
.badge-item i { color:var(--green); }
.footer-divider { border:none; border-top:1px solid rgba(255,255,255,.07); margin:40px 0 20px; }
.footer-bottom { display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:10px; padding-bottom:28px; font-size:.8rem; color:rgba(255,255,255,.3); }

/* Scroll top button */
.scroll-top {
  position:fixed; bottom:28px; right:28px; width:44px; height:44px;
  border-radius:50%; background:linear-gradient(135deg,var(--teal),var(--blue));
  border:none; color:#fff; font-size:1rem; cursor:pointer;
  opacity:0; transform:translateY(10px);
  transition:var(--ease); z-index:500;
  box-shadow:0 4px 16px rgba(10,147,150,.35);
}
.scroll-top.show { opacity:1; transform:translateY(0); }
.scroll-top:hover { transform:translateY(-3px); }

/* Responsive adjustments */
@media(max-width:1024px) {
  .cols-4 { grid-template-columns:repeat(2,1fr); }
  .cols-2-1 { grid-template-columns:1fr; }
}
@media(max-width:768px) {
  .nav-links, .nav-cta { display:none; }
  .hamburger { display:flex; }
  .cols-3 { grid-template-columns:1fr; }
}

/* ═══════════════ UNIFIED GLOBAL TOAST NOTIFICATIONS ═══════════════ */
.toast-nsa {
  position: fixed; top: 86px; right: 24px;
  min-width: 300px; max-width: calc(100vw - 48px); padding: 14px 18px;
  border-radius: 10px; border: 1px solid;
  display: flex; align-items: center; gap: 12px; font-size: 0.88rem; font-weight: 600; z-index: 9999;
  opacity: 0; transform: translateX(40px); transition: all 0.3s ease;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  pointer-events: auto;
}
.toast-nsa.show { opacity: 1; transform: translateX(0); }
.toast-nsa.success { background: #ECFDF5; border-color: #6EE7B7; color: #065F46; }
.toast-nsa.error { background: #FEF2F2; border-color: #FCA5A5; color: #991B1B; }
.toast-nsa.warning { background: #FFFBEB; border-color: #FDE68A; color: #92400E; }
.toast-nsa.info { background: #EFF6FF; border-color: #93C5FD; color: #1E40AF; }