/* ============================================
   VoiceSaver® — Global Styles
   ============================================ */

:root {
  --vs-navy:    #0B1D3A;
  --vs-blue:    #1565C0;
  --vs-sky:     #4FC3F7;
  --vs-teal:    #00897B;
  --vs-white:   #FFFFFF;
  --vs-light:   #F4F7FA;
  --vs-gray:    #6B7A8D;
  --vs-dark:    #1A1A2E;
  --vs-accent:  #FF6F00;
  --vs-border:  #D8DEE6;
  --vs-shadow:  0 2px 16px rgba(11,29,58,.08);
  --vs-radius:  8px;
  --font-head:  'DM Sans', sans-serif;
  --font-body:  'Source Sans 3', sans-serif;
  --max-w:      1200px;
  --nav-h:      72px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--vs-dark);
  line-height: 1.65;
  background: var(--vs-white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--vs-blue); text-decoration: none; transition: color .2s; }
a:hover { color: var(--vs-teal); }
h1,h2,h3,h4,h5,h6 { font-family: var(--font-head); font-weight: 700; line-height: 1.25; }

/* Utility */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section   { padding: 80px 0; }
.section--alt { background: var(--vs-light); }
.text-center { text-align: center; }

/* ---- NAVIGATION ---- */
.nav {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  background: var(--vs-navy);
  height: var(--nav-h);
  display: flex; align-items: center;
  box-shadow: 0 2px 12px rgba(0,0,0,.25);
}
.nav .container {
  display: flex; align-items: center; justify-content: space-between; width: 100%;
}
.nav__logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-head); font-weight: 700; font-size: 1.35rem;
  color: var(--vs-white);
}
.nav__logo img { height: 40px; }
.nav__logo span { color: var(--vs-sky); }

/* Desktop links */
.nav__links {
  list-style: none; display: flex; gap: 6px; align-items: center;
}
.nav__links > li { position: relative; }
.nav__links > li > a {
  display: block; padding: 8px 14px; color: rgba(255,255,255,.85);
  font-size: .925rem; font-weight: 500; border-radius: var(--vs-radius);
  transition: background .2s, color .2s;
}
.nav__links > li > a:hover,
.nav__links > li > a.active {
  background: rgba(255,255,255,.1); color: #fff;
}

/* Dropdown */
.dropdown-menu {
  display: none; position: absolute; top: 100%; left: 0;
  background: var(--vs-white); border-radius: var(--vs-radius);
  box-shadow: var(--vs-shadow); min-width: 220px; padding: 8px 0;
  z-index: 100;
}
.dropdown-menu a {
  display: block; padding: 8px 18px; color: var(--vs-dark);
  font-size: .9rem; transition: background .15s;
}
.dropdown-menu a:hover { background: var(--vs-light); color: var(--vs-blue); }
li.has-dropdown:hover .dropdown-menu { display: block; }

/* Hamburger */
.nav__toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav__toggle span {
  display: block; width: 26px; height: 3px; background: #fff; margin: 5px 0;
  border-radius: 2px; transition: .3s;
}

/* ---- HERO ---- */
.hero {
  margin-top: var(--nav-h);
  position: relative;
  background: linear-gradient(135deg, var(--vs-navy) 0%, #102a52 50%, var(--vs-blue) 100%);
  color: var(--vs-white);
  padding: 100px 0 90px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; top: -60%; right: -20%;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79,195,247,.15), transparent 70%);
  pointer-events: none;
}
.hero__inner { position: relative; z-index: 1; max-width: 720px; }
.hero__tag {
  display: inline-block;
  background: rgba(79,195,247,.18);
  color: var(--vs-sky);
  padding: 6px 16px; border-radius: 100px;
  font-size: .85rem; font-weight: 600;
  letter-spacing: .03em;
  margin-bottom: 20px;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin-bottom: 20px; }
.hero p  { font-size: 1.15rem; color: rgba(255,255,255,.78); max-width: 560px; margin-bottom: 32px; }
.btn {
  display: inline-block; padding: 14px 32px;
  background: var(--vs-accent); color: #fff;
  font-family: var(--font-head); font-weight: 700; font-size: .95rem;
  border-radius: var(--vs-radius); border: none; cursor: pointer;
  transition: transform .15s, box-shadow .15s;
  letter-spacing: .02em;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(255,111,0,.35); color: #fff; }
.btn--outline {
  background: transparent; border: 2px solid rgba(255,255,255,.4);
}
.btn--outline:hover { border-color: #fff; background: rgba(255,255,255,.08); }

/* ---- PAGE HEADER (for sub-pages) ---- */
.page-header {
  margin-top: var(--nav-h);
  background: linear-gradient(135deg, var(--vs-navy), var(--vs-blue));
  color: #fff; padding: 60px 0 50px;
}
.page-header h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.page-header p  { color: rgba(255,255,255,.7); margin-top: 8px; font-size: 1.05rem; }

/* ---- FEATURES GRID ---- */
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}
.feature-card {
  background: var(--vs-white);
  border: 1px solid var(--vs-border);
  border-radius: var(--vs-radius);
  padding: 32px 28px;
  transition: box-shadow .25s, transform .25s;
}
.feature-card:hover {
  box-shadow: 0 8px 30px rgba(11,29,58,.1);
  transform: translateY(-4px);
}
.feature-card__icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--vs-blue), var(--vs-teal));
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.3rem; margin-bottom: 18px;
}
.feature-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.feature-card p  { color: var(--vs-gray); font-size: .95rem; }

/* ---- IP PHONES ---- */
.phones-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.phone-card {
  background: var(--vs-white); border: 1px solid var(--vs-border);
  border-radius: var(--vs-radius); padding: 28px 24px;
}
.phone-card h3 {
  font-size: 1.1rem; color: var(--vs-blue); margin-bottom: 12px;
  padding-bottom: 10px; border-bottom: 2px solid var(--vs-light);
}
.phone-card ul { padding-left: 18px; }
.phone-card li { font-size: .92rem; color: var(--vs-gray); margin-bottom: 6px; }

/* ---- PRODUCTS / SOLUTION CARDS ---- */
.product-cards {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}
.product-card {
  background: var(--vs-white); border: 1px solid var(--vs-border);
  border-radius: var(--vs-radius); padding: 36px 28px;
  text-align: center;
  transition: box-shadow .25s;
}
.product-card:hover { box-shadow: 0 8px 30px rgba(11,29,58,.1); }
.product-card h3 { font-size: 1.2rem; color: var(--vs-navy); margin-bottom: 12px; }
.product-card p  { color: var(--vs-gray); font-size: .95rem; }

/* ---- CONTENT SECTIONS (About, Mission, etc.) ---- */
.content-block { max-width: 820px; margin: 0 auto; }
.content-block h2 { font-size: 1.8rem; margin-bottom: 16px; color: var(--vs-navy); }
.content-block h3 { font-size: 1.3rem; margin: 28px 0 10px; color: var(--vs-blue); }
.content-block p  { margin-bottom: 16px; color: #3a3a4a; }

/* Info cards (About page) */
.info-cards {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px; margin-top: 40px;
}
.info-card {
  background: var(--vs-white); border: 1px solid var(--vs-border);
  border-radius: var(--vs-radius); padding: 32px 28px;
  text-align: center;
}
.info-card h3 { color: var(--vs-navy); margin-bottom: 12px; font-size: 1.15rem; }
.info-card p  { color: var(--vs-gray); font-size: .93rem; }

/* ---- MILESTONES TIMELINE ---- */
.timeline { position: relative; padding-left: 36px; }
.timeline::before {
  content: ''; position: absolute; left: 12px; top: 0; bottom: 0;
  width: 3px; background: var(--vs-border); border-radius: 2px;
}
.timeline__item { position: relative; margin-bottom: 36px; }
.timeline__item::before {
  content: ''; position: absolute; left: -30px; top: 6px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--vs-blue); border: 3px solid var(--vs-white);
  box-shadow: 0 0 0 3px var(--vs-blue);
}
.timeline__year {
  font-family: var(--font-head); font-weight: 700;
  color: var(--vs-blue); font-size: 1.05rem; margin-bottom: 4px;
}
.timeline__item p { color: var(--vs-gray); font-size: .93rem; }

/* ---- CONTACT / FORMS ---- */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
}
.contact-info h3 { font-size: 1.15rem; margin-bottom: 8px; color: var(--vs-navy); }
.contact-info p  { color: var(--vs-gray); margin-bottom: 20px; }
.contact-info a  { color: var(--vs-blue); font-weight: 600; }

.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; font-size: .9rem; font-weight: 600;
  color: var(--vs-navy); margin-bottom: 6px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--vs-border); border-radius: var(--vs-radius);
  font-family: var(--font-body); font-size: .95rem;
  transition: border-color .2s;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--vs-blue);
  box-shadow: 0 0 0 3px rgba(21,101,192,.12);
}

/* ---- CTA BANNER ---- */
.cta-banner {
  background: linear-gradient(135deg, var(--vs-navy), var(--vs-blue));
  color: #fff; text-align: center; padding: 64px 24px;
}
.cta-banner h2 { font-size: 1.8rem; margin-bottom: 12px; }
.cta-banner p  { color: rgba(255,255,255,.7); margin-bottom: 28px; max-width: 520px; margin-left: auto; margin-right: auto; }

/* ---- FOOTER ---- */
.footer {
  background: var(--vs-navy); color: rgba(255,255,255,.6);
  padding: 60px 0 32px;
}
.footer__grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  margin-bottom: 40px;
}
.footer__brand p { font-size: .9rem; margin-top: 12px; line-height: 1.6; }
.footer h4 {
  color: #fff; font-size: .9rem; text-transform: uppercase;
  letter-spacing: .08em; margin-bottom: 14px;
}
.footer ul { list-style: none; }
.footer li { margin-bottom: 8px; }
.footer li a { color: rgba(255,255,255,.55); font-size: .88rem; }
.footer li a:hover { color: var(--vs-sky); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 24px; font-size: .84rem; text-align: center;
}

/* ---- PAGE IMAGES ---- */
.content-img { width:100%; max-width:700px; margin:28px auto; display:block; border-radius:var(--vs-radius); box-shadow:var(--vs-shadow); }
.content-img--wide { max-width:100%; }
.content-img--small { max-width:400px; }
.img-row { display:flex; gap:24px; margin:28px 0; flex-wrap:wrap; justify-content:center; }
.img-row img { flex:1 1 280px; max-width:48%; border-radius:var(--vs-radius); box-shadow:var(--vs-shadow); }
.section-with-img { display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center; }
.section-with-img--reverse { direction:rtl; }
.section-with-img--reverse > * { direction:ltr; }
.section-with-img img { width:100%; border-radius:var(--vs-radius); box-shadow:var(--vs-shadow); }
@media(max-width:768px) {
  .section-with-img { grid-template-columns:1fr; }
  .img-row img { max-width:100%; flex:1 1 100%; }
}
.icon-section { display:grid; grid-template-columns:80px 1fr; gap:20px; align-items:start; margin-bottom:32px; }
.icon-section img { width:64px; height:64px; }
@media(max-width:600px) { .icon-section { grid-template-columns:1fr; text-align:center; } .icon-section img { margin:0 auto; } }

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav__toggle { display: block; }
  .nav__links.open {
    display: flex; flex-direction: column;
    position: absolute; top: var(--nav-h); left: 0; width: 100%;
    background: var(--vs-navy); padding: 16px 0;
    box-shadow: 0 8px 24px rgba(0,0,0,.3);
  }
  .nav__links.open .dropdown-menu {
    position: static; box-shadow: none;
    background: rgba(255,255,255,.05);
    display: none;
  }
  .nav__links.open li.has-dropdown.open .dropdown-menu {
    display: block;
  }
  .dropdown-menu a { color: rgba(255,255,255,.7); }
  .dropdown-menu a:hover { background: rgba(255,255,255,.08); color: #fff; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero { padding: 70px 0 60px; }
}
@media (max-width: 600px) {
  .footer__grid { grid-template-columns: 1fr; }
  .features-grid, .phones-grid, .product-cards { grid-template-columns: 1fr; }
}