/* ============================================================
   SV Tech Innovations — Global Base Styles
   ============================================================ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%;}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background var(--slow) var(--ease), color var(--slow) var(--ease);
}

/* ── TYPOGRAPHY ── */
h1,h2,h3,h4,h5,h6 { font-family:var(--font); font-weight:800; line-height:1.15; color:var(--text); }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); font-weight:700; }
h4 { font-size: 1rem; font-weight:700; }
p  { color: var(--text2); line-height: 1.78; }
a  { text-decoration:none; color:inherit; transition: color var(--fast) var(--ease); }
img{ max-width:100%; height:auto; display:block; }
ul { list-style:none; }

/* ── CONTAINER ── */
.container { max-width:var(--container); margin:0 auto; padding:0 clamp(1rem,4vw,2rem); }

/* ── GRADIENT TEXT ── */
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── SECTION TAG ── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .3rem 1rem;
  background: var(--grad-soft);
  border: 1px solid var(--border2);
  border-radius: var(--radius-full);
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--purple);
  margin-bottom: 1rem;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .72rem 1.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font);
  font-weight: 700;
  font-size: .92rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--spring) .0s;
  white-space: nowrap;
  letter-spacing: .01em;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn:active { transform: scale(.97) !important; }

.btn-primary {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow-brand);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(124,58,237,.40); color:#fff; }

.btn-outline {
  background: transparent;
  border-color: var(--purple);
  color: var(--purple);
}
.btn-outline:hover { background: var(--purple); color:#fff; transform:translateY(-2px); }

.btn-outline-white {
  background: transparent;
  border-color: rgba(255,255,255,.5);
  color: #fff;
}
.btn-outline-white:hover { background: rgba(255,255,255,.12); border-color:#fff; transform:translateY(-2px); }

.btn-ghost {
  background: transparent;
  border-color: var(--border2);
  color: var(--text2);
}
.btn-ghost:hover { background: var(--bg2); color:var(--text); transform:translateY(-2px); }

.btn-lg  { padding: .9rem 2.2rem; font-size: 1rem; }
.btn-xl  { padding: 1.1rem 2.8rem; font-size: 1.05rem; }
.btn-sm  { padding: .45rem 1.1rem; font-size: .82rem; }

.btn-wa-xl {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: 1rem 2.5rem;
  background: #25D366;
  color: #fff;
  border-radius: var(--radius-full);
  font-weight: 800;
  font-size: 1.05rem;
  box-shadow: 0 6px 28px rgba(37,211,102,.35);
  transition: all var(--spring);
}
.btn-wa-xl:hover { transform:translateY(-2px); box-shadow:0 10px 40px rgba(37,211,102,.45); color:#fff; }

.btn-ghost-link {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-weight: 700;
  font-size: .9rem;
  color: var(--purple);
  transition: gap var(--fast);
}
.btn-ghost-link:hover { gap: .6rem; }

/* ── SECTION SHARED ── */
section { padding: var(--section-pad); }
.sec { padding: var(--section-pad); }
.sec-title { font-size: clamp(1.6rem,3.5vw,2.4rem); margin-bottom:.75rem; }
.sec-sub { font-size:1.05rem; color:var(--text2); max-width:580px; }
.sec-center { text-align:center; }
.sec-sub.sec-center { margin:0 auto; }

/* ── INNER PAGE HERO ── */
.page-hero {
  background: var(--grad-hero);
  padding: 8rem 0 4.5rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.page-hero-glow {
  position: absolute;
  top: -60%; left: 50%;
  transform: translateX(-50%);
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(124,58,237,.12) 0%, transparent 60%);
  pointer-events: none;
}
.page-hero .tag { margin-bottom:1.25rem; }
.page-hero h1 { margin-bottom:.75rem; }
.page-hero p { font-size:1.08rem; max-width:560px; margin:0 auto; text-align:center; }
.page-hero .container { text-align:center; }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:var(--bg2); }
::-webkit-scrollbar-thumb { background:var(--purple-mid); border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:var(--purple); }
::selection { background:rgba(124,58,237,.2); color:var(--text); }

/* ── FOOTER ── */
footer {
  background: var(--grad-dark);
  color: rgba(255,255,255,.85);
  padding: 4.5rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
.footer-brand p { color:rgba(255,255,255,.55); font-size:.9rem; margin-top:.75rem; }
.footer-col h4 { color:var(--purple-mid); font-size:.75rem; text-transform:uppercase; letter-spacing:.1em; margin-bottom:1rem; font-weight:700; }
.footer-col a { display:block; color:rgba(255,255,255,.55); font-size:.88rem; margin-bottom:.55rem; transition:color var(--fast); }
.footer-col a:hover { color:var(--purple-mid); }
.footer-social { display:flex; flex-direction:column; gap:.4rem; margin-top:1.25rem; }
.footer-social a { font-size:.85rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .75rem;
}
.footer-bottom p { color:rgba(255,255,255,.4); font-size:.8rem; }

/* ── LOGO ── */
.logo-wrap { display:inline-flex; align-items:center; gap:.6rem; font-family:var(--font); font-size:1.4rem; font-weight:900; }
.logo-mark { width:32px; height:32px; }
.logo-sv { background:var(--grad); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.logo-tech { color:var(--text); }
.logo-dot { color:var(--orange); }

/* ── MISC UTILS ── */
.feature-chip {
  display:inline-flex;
  padding:.28rem .8rem;
  background:var(--bg2);
  border:1px solid var(--border2);
  border-radius:var(--radius-full);
  font-size:.74rem;
  font-weight:600;
  color:var(--text2);
  transition:all var(--fast);
}
.feature-chip:hover { background:var(--purple-light); border-color:var(--purple); color:var(--purple); }

.live-badge {
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.3rem .9rem;
  background:rgba(34,197,94,.12);
  border:1px solid rgba(74,222,128,.3);
  border-radius:var(--radius-full);
  font-size:.72rem;
  font-weight:700;
  color:#15803d;
}
[data-theme="dark"] .live-badge { background:rgba(34,197,94,.15); color:#4ade80; }
.live-dot { width:7px; height:7px; background:#22c55e; border-radius:50%; animation:blink 1.5s ease-in-out infinite; }

@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.4} }

.star-rating { color:#F59E0B; font-size:1rem; letter-spacing:.05rem; }

/* ── DISCLAIMER ── */
.disclaimer {
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  padding:.5rem 1rem;
  background:rgba(124,58,237,.08);
  border:1px solid rgba(124,58,237,.2);
  border-radius:var(--radius-md);
  font-size:.78rem;
  color:var(--purple);
  line-height:1.5;
}

/* ── SCROLL ANIMATIONS ── */
.fu {
  opacity:0;
  transform:translateY(32px);
  transition:opacity .7s var(--ease), transform .7s var(--ease);
}
.fu.vis { opacity:1; transform:translateY(0); }
.fu.d1 { transition-delay:.08s; }
.fu.d2 { transition-delay:.16s; }
.fu.d3 { transition-delay:.24s; }
.fu.d4 { transition-delay:.32s; }
.fu.d5 { transition-delay:.40s; }
.fu.d6 { transition-delay:.48s; }

/* ── FAQ ── */
.faq-item { background:var(--card); border:1px solid var(--border); border-radius:var(--radius-lg); overflow:hidden; margin-bottom:.6rem; transition:border-color var(--fast); }
.faq-item:hover { border-color:var(--border2); }
.faq-item.open { border-color:var(--purple); }
.faq-q { width:100%; background:none; border:none; text-align:left; padding:1.2rem 1.5rem; display:flex; justify-content:space-between; align-items:center; gap:1rem; cursor:pointer; font-family:var(--font); font-size:.95rem; font-weight:700; color:var(--text); }
.faq-q:hover { color:var(--purple); }
.faq-icon { width:26px; height:26px; border-radius:50%; border:1.5px solid var(--border2); display:flex; align-items:center; justify-content:center; color:var(--purple); flex-shrink:0; font-size:1rem; transition:all var(--spring); }
.faq-item.open .faq-icon { background:var(--purple); color:#fff; transform:rotate(45deg); }
.faq-ans { max-height:0; overflow:hidden; transition:max-height var(--slow) var(--ease); }
.faq-item.open .faq-ans { max-height:300px; }
.faq-ans-inner { padding:0 1.5rem 1.2rem; font-size:.9rem; color:var(--text2); line-height:1.75; }

/* ── MODAL ── */
.modal-overlay { position:fixed; inset:0; background:rgba(13,6,24,.78); backdrop-filter:blur(10px); z-index:2000; display:flex; align-items:center; justify-content:center; padding:1rem; animation:mFadeIn .22s var(--ease); }
@keyframes mFadeIn { from{opacity:0} to{opacity:1} }
.modal-box { background:var(--card); border:1px solid var(--border2); border-radius:var(--radius-xl); max-width:860px; width:100%; max-height:90vh; overflow-y:auto; box-shadow:var(--shadow-xl); animation:mSlideIn .3s var(--spring); }
@keyframes mSlideIn { from{transform:scale(.92) translateY(20px)} to{transform:scale(1) translateY(0)} }
.modal-head { padding:2rem 2rem 1rem; border-bottom:1px solid var(--border); display:flex; justify-content:space-between; align-items:flex-start; gap:1rem; }
.modal-close { width:34px; height:34px; border-radius:50%; border:1.5px solid var(--border2); background:var(--bg2); cursor:pointer; font-size:.95rem; display:flex; align-items:center; justify-content:center; flex-shrink:0; color:var(--text); transition:all var(--fast); }
.modal-close:hover { background:var(--purple); color:#fff; border-color:var(--purple); }
.modal-body { padding:2rem; }

/* ── TOAST ── */
.toast { position:fixed; bottom:1.5rem; right:1.5rem; background:var(--card); border:1px solid var(--border); border-radius:var(--radius-lg); padding:.9rem 1.4rem; box-shadow:var(--shadow-xl); z-index:3000; display:flex; align-items:center; gap:.6rem; font-size:.88rem; font-weight:600; color:var(--text); transform:translateX(200%); transition:transform var(--spring); max-width:320px; }
.toast.show { transform:translateX(0); }
.toast.success { border-left:3px solid #22c55e; }
.toast.error   { border-left:3px solid #ef4444; }

/* ── FORMS (shared) ── */
.form-label { font-size:.78rem; font-weight:700; color:var(--text2); text-transform:uppercase; letter-spacing:.06em; display:block; margin-bottom:.4rem; }
.form-input, .form-select, .form-textarea {
  width:100%; padding:.72rem 1rem; border:1.5px solid var(--border2); border-radius:var(--radius-md);
  background:var(--card); color:var(--text); font-family:var(--font); font-size:.95rem;
  outline:none; transition:border-color var(--fast), box-shadow var(--fast);
}
.form-input:focus,.form-select:focus,.form-textarea:focus { border-color:var(--purple); box-shadow:0 0 0 3px rgba(124,58,237,.12); }
.form-textarea { resize:vertical; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:1.2rem; margin-bottom:1.2rem; }
.form-field { display:flex; flex-direction:column; gap:.4rem; }

/* ── RESPONSIVE SHARED ── */
@media (max-width:900px) { .footer-grid { grid-template-columns:1fr 1fr; gap:2rem; } }
@media (max-width:600px) {
  section, .sec { padding:56px 0; }
  .footer-grid { grid-template-columns:1fr; }
  .footer-bottom { flex-direction:column; text-align:center; }
  .form-row { grid-template-columns:1fr; }
}