/* ================================================================
   VaultChat Website — Global Styles
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,400&display=swap');

/* ── CSS Variables ── */
:root {
  --void:          #05060F;
  --deep:          #080A18;
  --navy:          #0D1022;
  --card:          #111428;
  --card2:         #171B30;
  --card3:         #1C2038;
  --border:        rgba(130,110,255,0.20);
  --border2:       rgba(255,255,255,0.07);
  --border3:       rgba(255,255,255,0.04);
  --violet:        #7C6FF7;
  --violet-bright: #9D94FF;
  --violet-dim:    #4B44B0;
  --violet-glow:   rgba(124,111,247,0.15);
  --teal:          #00C9B1;
  --teal-dim:      rgba(0,201,177,0.15);
  --text:          #EEF0FF;
  --text2:         #C8CCE8;
  --muted:         #7B82A8;
  --soft:          #4A5070;
  --danger:        #FF6B6B;
  --warning:       #FFB347;
  --success:       #00C9B1;
  --font-display:  'Outfit', sans-serif;
  --font-body:     'DM Sans', sans-serif;
  --radius-sm:     8px;
  --radius-md:     14px;
  --radius-lg:     20px;
  --radius-xl:     28px;
  --transition:    0.22s ease;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--void);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
  min-height: 100vh;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

/* ── Background effects ── */
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(124,111,247,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,111,247,0.035) 1px, transparent 1px);
  background-size: 64px 64px;
}
.bg-noise {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.25;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── NAV ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: 68px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 6%;
  background: rgba(5,6,15,0.75);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border3);
  transition: background var(--transition);
}
.nav.scrolled { background: rgba(5,6,15,0.96); border-bottom-color: var(--border2); }

.nav-logo {
  display: flex; align-items: center; gap: 11px;
}
.nav-logo img { width: 34px; height: 34px; border-radius: 10px; }
.nav-logo-text {
  font-family: var(--font-display);
  font-size: 19px; font-weight: 700; color: var(--text);
}
.nav-logo-text em { font-style: normal; color: var(--violet-bright); }

.nav-links {
  display: flex; align-items: center; gap: 36px;
}
.nav-links a {
  font-size: 14px; font-weight: 500; color: var(--muted);
  transition: color var(--transition); letter-spacing: 0.01em;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }

.nav-right { display: flex; align-items: center; gap: 16px; }

/* Lang toggle */
.lang-toggle {
  display: flex;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  gap: 1px;
}
.lang-btn {
  padding: 6px 14px;
  font-family: var(--font-display);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: transparent;
  transition: all var(--transition);
  border: none; cursor: pointer;
}
.lang-btn.active { background: var(--violet); color: #fff; }

.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--violet); color: #fff;
  padding: 9px 20px; border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 13px; font-weight: 700;
  transition: all var(--transition);
}
.nav-cta:hover { background: var(--violet-bright); transform: translateY(-1px); }

/* Mobile hamburger */
.nav-hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--muted); border-radius: 2px;
  transition: all 0.3s;
}

/* Mobile nav */
.nav-mobile {
  display: none; flex-direction: column;
  position: fixed; top: 68px; left: 0; right: 0;
  background: rgba(5,6,15,0.98);
  backdrop-filter: blur(20px);
  padding: 20px 6% 28px;
  border-bottom: 1px solid var(--border2);
  z-index: 199;
  gap: 4px;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  padding: 14px 0;
  font-size: 16px; font-weight: 500; color: var(--muted);
  border-bottom: 1px solid var(--border3);
  transition: color var(--transition);
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a:hover { color: var(--text); }

/* ── BUTTONS ── */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  background: var(--violet); color: #fff;
  padding: 15px 32px; border-radius: var(--radius-md);
  font-family: var(--font-display); font-weight: 700; font-size: 15px;
  border: none; cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.01em;
}
.btn-primary:hover {
  background: var(--violet-bright);
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(124,111,247,0.38);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  background: transparent; color: var(--text);
  padding: 15px 32px; border-radius: var(--radius-md);
  font-family: var(--font-display); font-weight: 600; font-size: 15px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
}
.btn-secondary:hover {
  border-color: var(--violet-bright); color: var(--violet-bright);
  transform: translateY(-2px);
}

.btn-outline-teal {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--teal);
  padding: 11px 24px; border-radius: var(--radius-md);
  font-family: var(--font-display); font-weight: 600; font-size: 14px;
  border: 1px solid rgba(0,201,177,0.35);
  cursor: pointer; transition: all var(--transition);
}
.btn-outline-teal:hover {
  background: var(--teal-dim); border-color: var(--teal);
}

/* ── SECTIONS ── */
.section {
  position: relative; z-index: 1;
  padding: 100px 6%;
}
.section-inner { max-width: 1200px; margin: 0 auto; }

.section-label {
  display: block;
  font-family: var(--font-display);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--violet-bright);
  margin-bottom: 14px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.8vw, 50px);
  font-weight: 700; line-height: 1.12;
  letter-spacing: -0.018em;
  color: var(--text);
  margin-bottom: 18px;
}

.section-sub {
  font-size: 17px; color: var(--muted);
  line-height: 1.7; max-width: 580px;
  margin-bottom: 56px;
}

/* ── CARDS ── */
.card {
  background: var(--card);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: background var(--transition), border-color var(--transition);
}
.card:hover { background: var(--card2); border-color: var(--border); }

/* ── BADGE ── */
.badge {
  display: inline-flex; align-items: center; gap: 7px;
  border-radius: 100px; padding: 6px 16px;
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.07em; text-transform: uppercase;
}
.badge-violet {
  background: rgba(124,111,247,0.12);
  border: 1px solid rgba(124,111,247,0.28);
  color: var(--violet-bright);
}
.badge-teal {
  background: rgba(0,201,177,0.10);
  border: 1px solid rgba(0,201,177,0.25);
  color: var(--teal);
}
.badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: currentColor;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%,100% { opacity:1; transform:scale(1); }
  50% { opacity:0.4; transform:scale(1.5); }
}

/* ── PHONE FRAME ── */
.phone-frame {
  border-radius: 36px;
  border: 2px solid rgba(255,255,255,0.10);
  overflow: hidden;
  background: var(--navy);
  box-shadow:
    0 40px 80px rgba(0,0,0,0.55),
    0 0 0 1px rgba(255,255,255,0.04) inset;
}
.phone-frame img { width: 100%; height: 100%; object-fit: cover; object-position: top; }

/* ── GRID DIVIDER (gap=2px look) ── */
.grid-divided {
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.grid-divided > * {
  border-right: 1px solid var(--border2);
  border-bottom: 1px solid var(--border2);
}
.grid-divided > *:last-child { border-right: none; }

/* ── SCROLL ANIMATIONS ── */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── FOOTER ── */
.footer {
  position: relative; z-index: 1;
  background: var(--void);
  border-top: 1px solid var(--border2);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 60px 6%;
  max-width: 1200px; margin: 0 auto;
}
.footer-logo-wrap .nav-logo-text { font-size: 22px; }
.footer-desc {
  font-size: 14px; color: var(--muted);
  line-height: 1.7; margin-top: 16px; max-width: 280px;
}
.footer-col h4 {
  font-family: var(--font-display);
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--soft); margin-bottom: 20px;
}
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a {
  font-size: 14px; color: var(--muted);
  transition: color var(--transition);
}
.footer-col ul a:hover { color: var(--text); }
.footer-bottom {
  border-top: 1px solid var(--border3);
  padding: 20px 6%;
  max-width: 1200px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
}
.footer-copy { font-size: 13px; color: var(--soft); }
.footer-social { display: flex; gap: 16px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--card); border: 1px solid var(--border2);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 16px;
  transition: all var(--transition);
}
.footer-social a:hover { border-color: var(--violet); color: var(--violet-bright); }

/* ── FORMS ── */
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-label {
  font-family: var(--font-display);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.10em; text-transform: uppercase;
  color: var(--muted);
}
.form-input, .form-textarea, .form-select {
  background: var(--card);
  border: 1px solid var(--border2);
  border-radius: var(--radius-md);
  padding: 13px 16px;
  color: var(--text);
  font-family: var(--font-body); font-size: 15px;
  outline: none;
  transition: border-color var(--transition);
  width: 100%;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--soft); }
.form-input:focus, .form-textarea:focus, .form-select:focus { border-color: var(--violet); }
.form-select { appearance: none; cursor: pointer; }
.form-textarea { resize: vertical; min-height: 130px; }
.form-select option { background: var(--card); }

/* ── UTILITY ── */
.text-center { text-align: center; }
.text-muted { color: var(--muted); }
.text-violet { color: var(--violet-bright); }
.text-teal { color: var(--teal); }
.mt-4 { margin-top: 4px; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .section { padding: 72px 5%; }
}
@media (max-width: 600px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section { padding: 60px 5%; }
  .section-title { font-size: 28px; }
  .btn-primary, .btn-secondary { padding: 13px 24px; font-size: 14px; }
}