/* ============================================================
   GENSYS — Global Styles / Design System
   PRD: Main components (Header, Footer, Buttons, Forms, Base)
   ============================================================ */

:root {
  --primary: var(--color-primary);
  --primary-dark: #000000;
  --primary-soft: rgba(17, 17, 17, 0.08);
  --secondary: var(--color-secondary);
  --dark: var(--color-primary);
  --dark-soft: #1c1c1c;
  --white: var(--color-bg);
  --gray: #f5f5f5;
  --border: #e6e9ef;
  --gold: var(--color-accent);
  --text: var(--color-text);
  --heading: var(--color-primary);
  --radius: 14px;
  --shadow: 0 18px 40px rgba(17, 17, 17, 0.12);
  --shadow-sm: 0 6px 18px rgba(17, 17, 17, 0.10);
  --header-h: 78px;
  --container: 1200px;
  --font-heading: 'Montserrat', 'Oswald', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-head: var(--font-heading);
  --text-primary: #ffffff;
  --text-secondary: #e0e0e0;
  --brand-navy: #112a46;
  --brand-blue: #205483;
  --accent-gold: #d4af37;
  --accent-cyan: #00bfff;
  --glass-bg: rgba(255, 255, 255, 0.15);
  --glass-dark-bg: rgba(10, 15, 25, 0.85);
  --glow-blue: rgba(0, 191, 255, 0.7);
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  color: var(--heading);
  line-height: 1.2;
  font-weight: 700;
}

a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 1rem; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---------- Section spacing ---------- */
.section { padding: 96px 0; }
.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-head .eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--primary); font-weight: 700; font-size: 0.8rem;
  letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 14px;
}
.section-head .eyebrow::before,
.section-head .eyebrow::after {
  content: ""; width: 28px; height: 2px; background: var(--gold); border-radius: 2px;
}
.section-head h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); text-transform: uppercase; }
.section-head p { margin-top: 14px; font-size: 1.05rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 30px; border-radius: 8px;
  font-family: var(--font-head); font-weight: 700; font-size: 0.82rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  transition: var(--transition); white-space: nowrap; border: 2px solid transparent;
}
.btn svg { width: 18px; height: 18px; }

.btn-primary { background: var(--primary); color: var(--white); border-color: var(--white); }
.btn-primary:hover { background: var(--white); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

.btn-outline { background: transparent; color: var(--white); border-color: var(--white); }
.btn-outline:hover { background: var(--white); color: var(--primary); }

.btn-dark { background: var(--dark); color: var(--white); }
.btn-dark:hover { background: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

.btn-gold { background: var(--gold); color: var(--dark); }
.btn-gold:hover { background: var(--white); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

.btn-emergency { background: var(--white); color: var(--primary); font-size: 0.72rem; padding: 12px 22px; }
.btn-emergency:hover { background: var(--primary); color: var(--white); box-shadow: var(--shadow-sm); }

/* ============================================================
   HEADER (Floating glassmorphism navbar)
   ============================================================ */
.site-header {
  position: fixed; top: 20px; left: 50%; transform: translateX(-50%);
  width: 90%; max-width: 1320px; z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.22);
  animation: headerIn 0.8s ease both;
}
@keyframes headerIn {
  from { transform: translateX(-50%) translateY(-120%); opacity: 0; }
  to   { transform: translateX(-50%) translateY(0); opacity: 1; }
}
.site-header.scrolled { background: rgba(255, 255, 255, 0.28); box-shadow: 0 12px 42px rgba(0, 0, 0, 0.3); }

/* Inverted header: keeps dark text/icons when outside the (dark) hero,
   while preserving the glassmorphism (frosted) background */
.site-header.gd-inverted {
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-color: rgba(255, 255, 255, 0.55);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
}
.site-header.gd-inverted .nav-links a { color: #373d4a; }
.site-header.gd-inverted .nav-links a::after { background: var(--brand-blue); }
.site-header.gd-inverted .nav-links a:hover,
.site-header.gd-inverted .nav-links a.active { color: var(--brand-blue); }
.site-header.gd-inverted .nav-toggle .ham-line { background: #373d4a; }
.site-header.gd-inverted .btn-emergency { background: #373d4a; color: var(--text-primary); }
.site-header.gd-inverted .btn-emergency:hover { background: #2a3038; box-shadow: 0 4px 15px rgba(55, 61, 74, 0.35); }

.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 15px 30px; }

.nav-check { display: none; }

.logo {
  font-family: var(--font-head); font-weight: 900; font-size: 1.35rem;
  letter-spacing: 0.06em; color: var(--brand-navy);
  display: inline-flex; align-items: center; gap: 12px;
}
.logo .logo-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--text-primary); color: var(--brand-navy);
  display: grid; place-items: center;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
}
.logo .logo-icon svg { width: 24px; height: 24px; }
.logo span b { color: var(--brand-navy); }

/* Battery logo image (header + footer) — subtle glow on hover, desktop only */
.logo-img { height: 46px; width: auto; display: block; }
.foot-logo .logo-img { height: 52px; }
@media (min-width: 769px) {
  .logo, .foot-logo { transition: filter 0.35s ease, opacity 0.35s ease; }
  .logo:hover, .foot-logo:hover {
    filter: drop-shadow(0 0 6px var(--glow-blue)) drop-shadow(0 0 2px var(--glow-blue));
    opacity: 0.92;
  }
}

.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a {
  position: relative; padding: 6px 0;
  font-family: var(--font-body); font-weight: 600; font-size: 0.85rem;
  letter-spacing: 0.08em; color: var(--text-primary); text-transform: uppercase;
  transition: color 0.3s ease;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 2px;
  background: var(--accent-cyan); transform: scaleX(0); transform-origin: center;
  transition: transform 0.3s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent-cyan); }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }

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

.btn-emergency {
  background: var(--text-primary); color: var(--brand-navy);
  font-weight: 700; border-radius: 6px; padding: 10px 20px;
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-head); font-size: 0.72rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  border: 2px solid transparent; white-space: nowrap;
  transition: all 0.3s ease;
}
.btn-emergency svg { width: 16px; height: 16px; }
.btn-emergency:hover { transform: translateY(-2px); box-shadow: 0 4px 15px rgba(255, 255, 255, 0.4); }

.nav-toggle {
  display: none; position: relative; width: 40px; height: 40px;
  border-radius: 8px; cursor: pointer;
  align-items: center; justify-content: center; flex-direction: column; gap: 6px;
}
.nav-toggle .ham-line {
  width: 24px; height: 2px; background: var(--text-primary);
  border-radius: 2px; transition: transform 0.35s ease, opacity 0.25s ease;
}
.nav-check:checked ~ .nav-inner .nav-toggle .ham-line:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-check:checked ~ .nav-inner .nav-toggle .ham-line:nth-child(2) { opacity: 0; }
.nav-check:checked ~ .nav-inner .nav-toggle .ham-line:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ============================================================
   MOBILE — Bottom Tabbar
   ============================================================ */
.mobile-tabbar { display: none; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--dark); color: rgba(255, 255, 255, 0.75); margin-top: 0; }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1.3fr 1.2fr;
  gap: 48px; padding: 80px 0 56px;
}
.footer-col h4 {
  color: var(--white); font-size: 0.95rem; text-transform: uppercase;
  letter-spacing: 0.14em; margin-bottom: 22px;
}
.footer-col .foot-logo { color: var(--white); margin-bottom: 18px; }
.footer-col p { font-size: 0.95rem; max-width: 300px; }

.footer-links a {
  display: block; padding: 6px 0; color: rgba(255, 255, 255, 0.75);
  font-size: 0.95rem; transition: color var(--transition), transform var(--transition);
}
.footer-links a::before { content: "›  "; color: var(--gold); }
.footer-links a:hover { color: var(--gold); transform: translateX(4px); }

.footer-contact li { display: flex; gap: 12px; align-items: flex-start; padding: 8px 0; font-size: 0.93rem; }
.footer-contact svg { width: 18px; height: 18px; color: var(--gold); flex: none; margin-top: 3px; }
.footer-contact a { color: rgba(255, 255, 255, 0.85); border-bottom: 1px dotted rgba(255,255,255,.4); }
.footer-contact a:hover { color: var(--gold); }

.footer-col h4 { text-align: left; }
.footer-contact, .footer-contact li { text-align: left; }
.footer-contact li:first-child svg { animation: pinJump 2.4s ease-in-out infinite; }
@keyframes pinJump {
  0%, 100% { transform: translateY(0); }
  10%  { transform: translateY(-7px); }
  20%  { transform: translateY(0); }
  30%  { transform: translateY(-4px); }
  40%  { transform: translateY(0); }
}

/* Social icons */
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a {
  width: 42px; height: 42px; border-radius: 12px;
  display: grid; place-items: center;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.22);
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.footer-social svg { width: 18px; height: 18px; }
.footer-social a:hover { transform: translateY(-4px); border-color: transparent; color: var(--text-primary); }
.footer-social a.fb:hover { background: #1877f2; box-shadow: 0 8px 18px rgba(24, 119, 242, 0.4); }
.footer-social a.ig:hover { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); box-shadow: 0 8px 18px rgba(220, 39, 67, 0.4); }
.footer-social a.ln:hover { background: #0a66c2; box-shadow: 0 8px 18px rgba(10, 102, 194, 0.4); }

.newsletter-form { display: flex; flex-direction: column; gap: 10px; margin-top: 14px; }
.newsletter-input-wrap {
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  width: 100%;
}
.newsletter-form input {
  width: 100%;
  padding: 14px 18px;
  border-radius: 12px;
  border: 1.5px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
  outline: none;
  font-size: 0.9rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.newsletter-form input::placeholder { color: rgba(255, 255, 255, 0.45); }
.newsletter-form input:hover {
  border-color: rgba(0, 191, 255, 0.6);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 16px rgba(0, 191, 255, 0.18);
}
.newsletter-form input:focus {
  border-color: var(--accent-cyan);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 0 0 4px rgba(0, 191, 255, 0.25), 0 0 20px rgba(0, 191, 255, 0.2);
}

.btn-newsletter {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--gold) 0%, #f59e0b 60%, #d97706 100%);
  color: var(--dark);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 6px 18px rgba(212, 175, 55, 0.3);
  position: relative;
  overflow: hidden;
}
.btn-newsletter::after {
  content: "";
  position: absolute;
  top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transition: left 0.6s ease;
}
.btn-newsletter:hover::after {
  left: 100%;
}
.btn-newsletter:hover {
  transform: translateY(-3px) scale(1.01);
  background: linear-gradient(135deg, #ffffff 0%, var(--gold) 100%);
  color: var(--brand-navy);
  box-shadow: 0 10px 28px rgba(212, 175, 55, 0.5), 0 0 18px rgba(245, 158, 11, 0.35);
}
.btn-newsletter:active {
  transform: translateY(-1px) scale(0.99);
}
.btn-newsletter i {
  font-size: 0.9rem;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.btn-newsletter:hover i {
  transform: translateX(5px) translateY(-3px) rotate(-12deg);
}
.newsletter-feedback {
  font-size: 0.82rem;
  font-weight: 600;
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12); padding: 24px 0;
  text-align: center; font-size: 0.85rem; color: rgba(255,255,255,.5);
}

/* ============================================================
   Scroll reveal helpers
   ============================================================ */
[data-reveal] { opacity: 0; transform: translateY(34px); transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.22, 1, 0.36, 1); }
[data-reveal].revealed { opacity: 1; transform: none; }
[data-reveal="left"] { transform: translateX(-46px); }
[data-reveal="right"] { transform: translateX(46px); }
[data-reveal="scale"] { transform: scale(0.92); }
[data-reveal].revealed { transform: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
/* ---------- Tablet (769–1024px): hamburger inside glass bar ---------- */
@media (min-width: 769px) and (max-width: 1024px) {
  .site-header { width: 92%; }
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }

  .nav-check:checked ~ .nav-inner .nav-links {
    display: flex; position: absolute; top: calc(100% + 12px); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: var(--glass-dark-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px; padding: 16px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  }
  .nav-check:checked ~ .nav-inner .nav-links a { padding: 12px 16px; border-radius: 8px; color: var(--text-primary); }
  .nav-check:checked ~ .nav-inner .nav-links a:hover,
  .nav-check:checked ~ .nav-inner .nav-links a.active { background: rgba(255, 255, 255, 0.08); color: var(--accent-cyan); }

  .section { padding: 72px 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; padding: 56px 0 40px; }
}

/* ---------- Mobile (max 768px): logo-only top bar + app-style bottom tabbar ---------- */
@media (max-width: 768px) {
  .site-header { display: none; }

  /* Hide site footer ONLY on mobile viewports */
  .site-footer { display: none; }

  /* Bottom app-like navigation */
  body { padding-bottom: 76px; }
  .mobile-tabbar {
    display: grid; grid-template-columns: repeat(5, 1fr);
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 1000;
    background: var(--glass-dark-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px 20px 0 0;
    box-shadow: 0 -8px 30px rgba(0, 0, 0, 0.35);
    height: 68px;
  }
  .mobile-tabbar .tab {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 3px; color: rgba(255, 255, 255, 0.6); font-size: 0.62rem;
    font-family: var(--font-head); font-weight: 700; letter-spacing: 0.06em;
    text-transform: uppercase; transition: color var(--transition);
  }
  .mobile-tabbar .tab svg { width: 21px; height: 21px; }
  .mobile-tabbar .tab.active, .mobile-tabbar .tab:hover { color: var(--text-primary); }
  .mobile-tabbar .tab.active span { color: var(--accent-gold); }

  .mobile-tabbar .tab-fab {
    justify-self: center; align-self: center;
    width: 56px; height: 56px; border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-navy), var(--brand-blue));
    color: var(--text-primary);
    display: flex; align-items: center; justify-content: center;
    margin-top: -30px; border: 4px solid var(--glass-dark-bg);
    box-shadow: 0 0 0 0 var(--glow-blue);
    animation: fabPulse 2.4s infinite;
    transition: transform var(--transition);
  }
  .mobile-tabbar .tab-fab:hover { transform: scale(1.08); }
  .mobile-tabbar .tab-fab svg { width: 24px; height: 24px; }
  @keyframes fabPulse {
    0%   { box-shadow: 0 0 0 0 var(--glow-blue); }
    70%  { box-shadow: 0 0 0 16px rgba(0, 191, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 191, 255, 0); }
  }

  /* "Social" tab: toggles the vertical social flyout above the tabbar */
  .mobile-tabbar .tab-social { border: none; background: none; cursor: pointer; gap: 3px; }
  .mobile-tabbar .tab-social.active,
  .mobile-tabbar .tab-social.open span { color: var(--accent-gold); }

  .social-flyout {
    position: absolute; bottom: 84px; right: 14px; z-index: 1100;
    display: flex; flex-direction: column; gap: 10px; padding: 12px;
    background: var(--glass-dark-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 14px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
    opacity: 0; visibility: hidden; transform: translateY(16px);
    transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), visibility 0s linear 0.35s;
    pointer-events: none;
  }
  .social-flyout.open {
    opacity: 1; visibility: visible; transform: translateY(0);
    transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    pointer-events: auto;
  }
  .social-flyout .soc {
    width: 46px; height: 46px; border-radius: 12px;
    display: grid; place-items: center;
    color: var(--text-primary); font-size: 18px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.16);
    opacity: 0; transform: translateY(14px);
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1) var(--d, 0s), opacity 0.4s ease var(--d, 0s), background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  }
  .social-flyout.open .soc { opacity: 1; transform: translateY(0); }
  .social-flyout .soc:nth-child(1) { --d: 0.05s; }
  .social-flyout .soc:nth-child(2) { --d: 0.12s; }
  .social-flyout .soc:nth-child(3) { --d: 0.19s; }
  .social-flyout .soc:nth-child(4) { --d: 0.26s; }
  .social-flyout .soc:hover { transform: translateY(-3px); border-color: transparent; color: var(--text-primary); }
  .social-flyout .soc-wa:hover { background: #25d366; box-shadow: 0 8px 18px rgba(37, 211, 102, 0.4); }
  .social-flyout .soc-fb:hover { background: #1877f2; box-shadow: 0 8px 18px rgba(24, 119, 242, 0.4); }
  .social-flyout .soc.soc-ig:hover { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); box-shadow: 0 8px 18px rgba(220, 39, 67, 0.4); }
  .social-flyout .soc.soc-ln:hover { background: #0a66c2; box-shadow: 0 8px 18px rgba(10, 102, 194, 0.4); }

  .section { padding: 64px 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; padding: 56px 0 40px; }
}

@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
}

/* ---------- Generic helper: image placeholders with gradients ---------- */
.ph-img {
  background: linear-gradient(135deg, #1d5a8a 0%, #2c7cb8 55%, #373d4a 130%);
  position: relative; overflow: hidden;
}
.ph-img::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 78% 20%, rgba(255,255,255,0.18), transparent 42%),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.05) 0 2px, transparent 2px 14px);
}
.ph-img .ph-ic { position: relative; z-index: 1; width: 72px; height: 72px; color: rgba(255,255,255,.85); }