/* =============================================================================
   VN SOLAR — Main Stylesheet v1.0
   Design: Năng lượng, công nghệ, niềm tin
   ============================================================================= */

/* ── 0. Google Font Import ──────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,400&display=swap');

/* ── 1. Design Tokens ────────────────────────────────────────────────────── */
:root {
  /* Colors */
  --vns-dark:        #060D1B;
  --vns-navy:        #0B1A34;
  --vns-solar:       #F5A623;
  --vns-solar-light: #FFD07A;
  --vns-teal:        #00C9A7;
  --vns-cta:         #FF4D00;
  --vns-cta-hover:   #D93E00;
  --vns-light:       #F0F4FF;
  --vns-white:       #FFFFFF;
  --vns-text:        #1A2B3C;
  --vns-text-muted:  #5A7090;
  --vns-border:      #D8E4F0;
  --vns-green:       #22C55E;

  /* Typography */
  --vns-font: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --vns-container: 1200px;
  --section-gap:   120px;
  --section-gap-sm: 72px;

  /* Radii */
  --r-sm:  8px;
  --r-md: 16px;
  --r-lg: 24px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --t:    0.3s;
}

/* ── 2. Reset & Base ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--vns-font);
  color: var(--vns-text);
  background: var(--vns-white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--vns-font); }

/* ── 3. Container & Layout ───────────────────────────────────────────────── */
.vns-container {
  max-width: var(--vns-container);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ┌─ CSS BREAKOUT TECHNIQUE ─────────────────────────────────────────────────┐
   Full-bleed: phá vỡ container của WordPress, tràn 100% viewport.
   └──────────────────────────────────────────────────────────────────────── */
.vns-breakout {
  width: 100vw;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
}

.vns-section {
  padding-block: var(--section-gap);
}

.vns-section-sm {
  padding-block: var(--section-gap-sm);
}

/* ── 4. Typography Scale ─────────────────────────────────────────────────── */
.vns-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--vns-solar);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.vns-eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--vns-solar);
  border-radius: 2px;
}

.vns-h1 { font-size: clamp(2.4rem, 5.5vw, 4.5rem); font-weight: 900; line-height: 1.08; letter-spacing: -0.02em; }
.vns-h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.01em; }
.vns-h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 700; line-height: 1.3; }
.vns-lead { font-size: clamp(1rem, 1.8vw, 1.2rem); line-height: 1.7; color: var(--vns-text-muted); }

/* ── 5. Buttons ──────────────────────────────────────────────────────────── */
.vns-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--r-sm);
  font-family: var(--vns-font);
  font-size: 0.95rem;
  font-weight: 700;
  border: 2px solid transparent;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease),
              background var(--t) var(--ease), border-color var(--t) var(--ease);
  white-space: nowrap;
  min-height: 48px;     /* touch target */
  min-width: 48px;
}
.vns-btn:hover  { transform: translateY(-2px); }
.vns-btn:active { transform: translateY(0); }

.vns-btn-primary {
  background: var(--vns-cta);
  color: var(--vns-white);
  box-shadow: 0 4px 20px rgba(255,77,0,.35);
}
.vns-btn-primary:hover {
  background: var(--vns-cta-hover);
  box-shadow: 0 8px 28px rgba(255,77,0,.45);
}

.vns-btn-solar {
  background: var(--vns-solar);
  color: var(--vns-dark);
  box-shadow: 0 4px 20px rgba(245,166,35,.35);
}
.vns-btn-solar:hover {
  background: var(--vns-solar-light);
  box-shadow: 0 8px 28px rgba(245,166,35,.45);
}

.vns-btn-outline {
  background: transparent;
  color: var(--vns-white);
  border-color: rgba(255,255,255,0.4);
}
.vns-btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.8);
}

.vns-btn-outline-dark {
  background: transparent;
  color: var(--vns-text);
  border-color: var(--vns-border);
}
.vns-btn-outline-dark:hover {
  border-color: var(--vns-solar);
  color: var(--vns-solar);
}

.vns-btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: var(--r-md); }
.vns-btn-sm { padding: 10px 20px; font-size: 0.85rem; }

.vns-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* ── 6. Navigation ───────────────────────────────────────────────────────── */
.vns-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: background var(--t) var(--ease), box-shadow var(--t) var(--ease);
  padding: 0;
}
.vns-header.scrolled {
  background: rgba(6,13,27,0.97);
  backdrop-filter: blur(16px);
  box-shadow: 0 2px 24px rgba(0,0,0,0.4);
}

.vns-nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 72px;
}

.vns-logo {
  display: flex;
  align-items: center;
  gap: 0;
  font-weight: 900;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.vns-logo .logo-vn     { color: var(--vns-white); }
.vns-logo .logo-solar  { color: var(--vns-solar); }

.vns-nav {
  flex: 1;
}
.vns-nav > ul {
  display: flex;
  align-items: center;
  gap: 4px;
}
.vns-nav > ul > li {
  position: relative;
}
.vns-nav > ul > li > a {
  display: block;
  padding: 8px 14px;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: var(--r-sm);
  transition: color var(--t) var(--ease), background var(--t) var(--ease);
}
.vns-nav > ul > li > a:hover {
  color: var(--vns-solar);
  background: rgba(245,166,35,0.08);
}

/* Dropdown */
.vns-nav .dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  background: var(--vns-navy);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r-md);
  padding: 8px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.5);
  z-index: 100;
}
.vns-nav .has-dropdown:hover .dropdown { display: block; }
.vns-nav .dropdown li a {
  display: block;
  padding: 10px 14px;
  color: rgba(255,255,255,0.8);
  font-size: 0.88rem;
  border-radius: var(--r-sm);
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}
.vns-nav .dropdown li a:hover {
  background: rgba(245,166,35,0.1);
  color: var(--vns-solar);
}

.vns-nav-cta {
  margin-left: auto;
}
.vns-btn-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: var(--vns-solar);
  color: var(--vns-dark);
  font-weight: 700;
  font-size: 0.88rem;
  border-radius: var(--r-sm);
  transition: background var(--t) var(--ease), transform var(--t) var(--ease);
}
.vns-btn-nav:hover {
  background: var(--vns-solar-light);
  transform: translateY(-1px);
}

/* Hamburger */
.vns-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  padding: 4px;
  margin-left: auto;
}
.vns-hamburger span {
  display: block;
  height: 2px;
  background: var(--vns-white);
  border-radius: 2px;
  transition: transform var(--t) var(--ease), opacity var(--t) var(--ease);
}
.vns-hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.vns-hamburger.active span:nth-child(2) { opacity: 0; }
.vns-hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav Overlay */
.vns-nav-mobile {
  display: none;
  position: fixed;
  inset: 72px 0 0 0;
  background: var(--vns-dark);
  z-index: 999;
  padding: 24px;
  overflow-y: auto;
}
.vns-nav-mobile.open { display: block; }
.vns-nav-mobile ul   { display: flex; flex-direction: column; gap: 4px; }
.vns-nav-mobile li a {
  display: block;
  padding: 14px 16px;
  color: rgba(255,255,255,0.85);
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: var(--r-sm);
}
.vns-nav-mobile .sub-label {
  font-size: 0.75rem;
  color: var(--vns-text-muted);
  padding: 12px 16px 4px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ── 7. Hero Section ─────────────────────────────────────────────────────── */
.vns-hero {
  min-height: 100svh;
  background: var(--vns-dark);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}

.vns-hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* Energy pulse rings behind headline */
.vns-hero-pulse {
  position: absolute;
  top: 50%;
  right: -10%;
  transform: translateY(-50%);
  width: 70vmax;
  height: 70vmax;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245,166,35,0.06) 0%, transparent 60%);
  animation: pulse-ring 4s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
}
@keyframes pulse-ring {
  from { transform: translateY(-50%) scale(0.9); opacity: 0.6; }
  to   { transform: translateY(-50%) scale(1.1); opacity: 1; }
}

.vns-hero .vns-container { position: relative; z-index: 1; }

.vns-hero-inner {
  max-width: 760px;
  padding-block: 80px 60px;
}

.vns-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0,201,167,0.12);
  border: 1px solid rgba(0,201,167,0.3);
  border-radius: 100px;
  color: var(--vns-teal);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.badge-dot {
  width: 8px; height: 8px;
  background: var(--vns-teal);
  border-radius: 50%;
  animation: dot-blink 1.5s ease-in-out infinite;
}
@keyframes dot-blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

.vns-hero-headline {
  font-size: clamp(1.9rem, 3.4vw, 3.2rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--vns-white);
  margin-bottom: 24px;
  white-space: nowrap;        /* Giữ mỗi dòng trên 1 hàng ngang */
}
.vns-hero-headline .accent-solar { color: var(--vns-solar); }
.vns-hero-headline .accent-teal  { color: var(--vns-teal); }

.vns-hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.7);
  line-height: 1.75;
  max-width: 640px;
  margin-bottom: 36px;
}
.vns-hero-sub strong { color: var(--vns-solar); font-weight: 700; }

.vns-hero-trust {
  display: flex;
  flex-wrap: nowrap;          /* 4 chip thẳng 1 hàng ngang trên PC */
  gap: 10px;
  margin-top: 32px;
  overflow-x: auto;           /* Fallback nếu màn hình quá nhỏ */
  scrollbar-width: none;      /* Ẩn scrollbar Firefox */
  -ms-overflow-style: none;   /* Ẩn scrollbar IE */
}
.vns-hero-trust::-webkit-scrollbar { display: none; } /* Ẩn scrollbar Chrome */

.vns-hero-trust .trust-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;          /* Compact hơn để vừa 1 hàng */
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 100px;
  color: rgba(255,255,255,0.75);
  font-size: 0.78rem;         /* Nhỏ hơn 1 chút để vừa hàng ngang */
  font-weight: 500;
  white-space: nowrap;        /* Không cho text trong chip bị rớt */
  flex-shrink: 0;             /* Chip không bị co lại */
}
.trust-chip-icon { font-size: 0.9rem; }

/* ══════════════════════════════════════════════════════════════
   HERO — FULL-BLEED BACKGROUND IMAGE SYSTEM
   Z-index stack: bg(0) → overlay(1) → canvas(2) → content(3)
══════════════════════════════════════════════════════════════ */

/* ① Background image layer */
.vns-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.vns-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  display: block;
  /* Tối ảnh gốc — brightness điều chỉnh độ sáng, saturate giữ màu sống */
  filter: brightness(0.40) saturate(1.1) contrast(1.05);
  /* Subtle zoom-out reveal khi ảnh tải xong */
  transform: scale(1.05);
  transform-origin: center center;
  transition: transform 1.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}
.vns-hero-bg.loaded img {
  transform: scale(1.0);
}

/* ② Multi-layer overlay — 5 lớp gradient, không có lớp nào chắn hoàn toàn */
.vns-hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    /* Vignette tứ phía — viền tối, giữa thoáng */
    radial-gradient(ellipse 110% 90% at 50% 50%,
      transparent 20%,
      rgba(6,13,27,0.45) 75%,
      rgba(6,13,27,0.80) 100%),
    /* Scrim trái — đảm bảo text nổi bật */
    linear-gradient(
      100deg,
      rgba(6,13,27,0.88) 0%,
      rgba(6,13,27,0.65) 30%,
      rgba(6,13,27,0.25) 60%,
      transparent 80%
    ),
    /* Scrim đáy — blend mịn vào ticker strip vàng */
    linear-gradient(
      to top,
      rgba(6,13,27,1.00) 0%,
      rgba(6,13,27,0.75) 10%,
      rgba(6,13,27,0.30) 25%,
      transparent 45%
    ),
    /* Scrim đỉnh — blend vào thanh nav */
    linear-gradient(
      to bottom,
      rgba(6,13,27,0.65) 0%,
      rgba(6,13,27,0.20) 15%,
      transparent 35%
    ),
    /* Warm tone — solar brand color grade cực nhẹ */
    linear-gradient(
      135deg,
      rgba(20,10,0,0.18) 0%,
      transparent 55%
    );
}

/* ③ Canvas & pulse — đè lên overlay, dưới content */
.vns-hero-canvas { z-index: 2 !important; opacity: 0.5; }
.vns-hero-pulse  { z-index: 2 !important; }

/* ④ Content container — nổi trên tất cả */
.vns-hero .vns-container {
  position: relative;
  z-index: 3;
}

/* ── Cải thiện hero inner layout ──────────────────────────── */
.vns-hero-inner {
  max-width: 780px;
  padding-block: 110px 100px;
}

/* Text-shadow — tăng độ đọc trên ảnh thật */
.vns-hero-headline {
  text-shadow:
    0 2px 4px rgba(0,0,0,0.5),
    0 8px 32px rgba(0,0,0,0.35);
}
.vns-hero-sub {
  text-shadow: 0 1px 3px rgba(0,0,0,0.6);
}

/* Nâng badge lên một chút */
.vns-hero-badge {
  box-shadow: 0 0 0 1px rgba(0,201,167,0.2), 0 4px 16px rgba(0,201,167,0.1);
}

/* Trust chips cứng cáp hơn trên nền ảnh */
.vns-hero-trust .trust-chip {
  background: rgba(6,13,27,0.65);
  border-color: rgba(255,255,255,0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

/* ── ⑤ Scroll indicator ─────────────────────────────────── */
.vns-hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.40);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  animation: scroll-bounce 2.4s ease-in-out infinite;
  cursor: pointer;
  transition: color var(--t) var(--ease);
  text-decoration: none;
}
.vns-hero-scroll:hover { color: rgba(255,255,255,0.75); }
.vns-hero-scroll svg { opacity: 0.7; }

/* Scroll dot animation bên trong SVG mouse */
.scroll-dot {
  animation: scroll-dot-drop 2.4s ease-in-out infinite;
  transform-origin: 8px 7px;
}
@keyframes scroll-dot-drop {
  0%   { transform: translateY(0);   opacity: 1; }
  60%  { transform: translateY(9px); opacity: 0.2; }
  61%  { transform: translateY(0);   opacity: 0; }
  80%  { opacity: 1; }
  100% { transform: translateY(0);   opacity: 1; }
}
@keyframes scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(5px); }
}

/* Ẩn scroll indicator trên mobile nhỏ */
@media (max-width: 480px) {
  .vns-hero-scroll { display: none; }
}

/* ── Placeholder label — các section khác ──────────────────── */
.img-placeholder-label {
  text-align: center;
  padding: 24px;
  color: rgba(255,255,255,0.25);
  font-size: 0.8rem;
  line-height: 1.6;
  font-style: italic;
}

/* ── 8. Ticker Strip ──────────────────────────────────────────────────────── */
.vns-ticker {
  background: var(--vns-solar);
  padding: 14px 0;
  overflow: hidden;
  position: relative;
  z-index: 2;
}
.vns-ticker-inner {
  display: flex;
  gap: 0;
  animation: ticker-scroll 30s linear infinite;
  width: max-content;
}
.vns-ticker:hover .vns-ticker-inner { animation-play-state: paused; }
.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 40px;
  color: var(--vns-dark);
  font-weight: 700;
  font-size: 0.9rem;
  white-space: nowrap;
}
.ticker-item::after {
  content: '⚡';
  margin-left: 8px;
}
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── 9. Pain Section ─────────────────────────────────────────────────────── */
.vns-pain {
  background: var(--vns-light);
}
.vns-pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.pain-card {
  background: var(--vns-white);
  border: 1px solid var(--vns-border);
  border-radius: var(--r-lg);
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.pain-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.1);
}
.pain-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: var(--r-lg) var(--r-lg) 0 0;
}
.pain-card:nth-child(1)::before { background: var(--vns-cta); }
.pain-card:nth-child(2)::before { background: var(--vns-solar); }
.pain-card:nth-child(3)::before { background: var(--vns-teal); }

.pain-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  display: block;
}
.pain-stat {
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1;
  color: var(--vns-text);
  margin-bottom: 8px;
  letter-spacing: -0.03em;
}
.pain-stat span { font-size: 1.4rem; font-weight: 700; }
.pain-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 12px; }
.pain-card p  { font-size: 0.9rem; color: var(--vns-text-muted); line-height: 1.65; }

/* ── 10. Customer Streams ─────────────────────────────────────────────────── */
.vns-streams {
  background: var(--vns-navy);
  position: relative;
  overflow: hidden;
}
.vns-streams-canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
}
.vns-streams .vns-container { position: relative; z-index: 1; }

.vns-streams-eyebrow { color: var(--vns-teal); }
.vns-streams-eyebrow::before { background: var(--vns-teal); }
.vns-streams-title { color: var(--vns-white); margin-bottom: 12px; }
.vns-streams-sub {
  color: rgba(255,255,255,0.6);
  font-size: 1.05rem;
  max-width: 560px;
}

.vns-streams-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}
.stream-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-lg);
  padding: 40px 32px;
  transition: background var(--t) var(--ease), border-color var(--t) var(--ease),
              transform var(--t) var(--ease);
  cursor: pointer;
}
.stream-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: var(--vns-solar);
  transform: translateY(-4px);
}
.stream-card.featured {
  border-color: rgba(245,166,35,0.4);
  background: rgba(245,166,35,0.06);
}
.stream-icon {
  width: 64px; height: 64px;
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem;
  margin-bottom: 20px;
}
.stream-card:nth-child(1) .stream-icon { background: rgba(255,77,0,0.15); }
.stream-card:nth-child(2) .stream-icon { background: rgba(245,166,35,0.15); }
.stream-card:nth-child(3) .stream-icon { background: rgba(0,201,167,0.15); }

.stream-card h3 {
  color: var(--vns-white);
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.stream-card .stream-target {
  font-size: 0.82rem;
  color: var(--vns-solar);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.stream-card p {
  color: rgba(255,255,255,0.65);
  font-size: 0.92rem;
  line-height: 1.65;
  margin-bottom: 24px;
}
.stream-savings {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 12px 16px;
  background: rgba(245,166,35,0.1);
  border-radius: var(--r-sm);
  margin-bottom: 20px;
}
.stream-savings .number {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--vns-solar);
  line-height: 1;
}
.stream-savings .label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.3;
}
.stream-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--vns-solar);
  font-size: 0.9rem;
  font-weight: 700;
  transition: gap var(--t) var(--ease);
}
.stream-link:hover { gap: 10px; }

/* ── 11. Solar Products ──────────────────────────────────────────────────── */
.vns-solar-products { background: var(--vns-white); }

.vns-product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.product-card {
  border: 1px solid var(--vns-border);
  border-radius: var(--r-lg);
  padding: 28px 20px;
  position: relative;
  transition: box-shadow var(--t) var(--ease), transform var(--t) var(--ease);
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  box-shadow: 0 12px 36px rgba(0,0,0,0.08);
  transform: translateY(-4px);
}
.product-card.featured {
  border-color: var(--vns-solar);
  box-shadow: 0 0 0 2px rgba(245,166,35,0.15);
}
.product-badge {
  position: absolute;
  top: -1px; right: 20px;
  background: var(--vns-cta);
  color: var(--vns-white);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  text-transform: uppercase;
}

.product-img {
  aspect-ratio: 1;
  background: var(--vns-light);
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  overflow: hidden;
}
.product-img-placeholder {
  text-align: center;
  padding: 12px;
  color: var(--vns-text-muted);
  font-size: 0.72rem;
  font-style: italic;
  line-height: 1.4;
}
.product-brand {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--vns-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}
.product-name {
  font-size: 1rem;
  font-weight: 800;
  color: var(--vns-text);
  margin-bottom: 8px;
  line-height: 1.3;
}
.product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.spec-chip {
  padding: 4px 10px;
  background: var(--vns-light);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--vns-text-muted);
}
.product-price-area { margin-top: auto; }
.product-price-old {
  font-size: 0.85rem;
  color: var(--vns-text-muted);
  text-decoration: line-through;
  margin-bottom: 2px;
}
.product-price-new {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--vns-cta);
  letter-spacing: -0.02em;
}
.product-price-note {
  font-size: 0.75rem;
  color: var(--vns-text-muted);
  margin-bottom: 16px;
  line-height: 1.4;
}
.product-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.product-datasheet {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--vns-teal);
  font-weight: 600;
  padding: 8px 0;
  transition: gap var(--t) var(--ease);
}
.product-datasheet:hover { gap: 10px; }

/* ── 12. EV Charger Section ──────────────────────────────────────────────── */
.vns-ev {
  background: var(--vns-dark);
  position: relative;
  overflow: hidden;
}
.vns-ev-canvas {
  position: absolute;
  inset: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 0;
}
.vns-ev .vns-container { position: relative; z-index: 1; }
.vns-ev-eyebrow  { color: var(--vns-teal); }
.vns-ev-eyebrow::before { background: var(--vns-teal); }
.vns-ev-title    { color: var(--vns-white); margin-bottom: 12px; }
.vns-ev-sub      { color: rgba(255,255,255,0.6); max-width: 560px; }

.vns-ev-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 56px;
}
.ev-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-lg);
  padding: 40px 36px;
  display: flex;
  gap: 32px;
  align-items: flex-start;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}
.ev-card:hover {
  border-color: rgba(0,201,167,0.5);
  background: rgba(0,201,167,0.04);
}
.ev-card-img {
  width: 140px;
  flex-shrink: 0;
  background: rgba(255,255,255,0.05);
  border-radius: var(--r-md);
  aspect-ratio: 0.6;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.ev-card-img .img-placeholder-label { font-size: 0.72rem; }

.ev-card-info { flex: 1; }
.ev-card-info .product-brand { color: rgba(255,255,255,0.4); margin-bottom: 4px; }
.ev-card-info h3 {
  color: var(--vns-white);
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 6px;
}
.ev-power-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  background: rgba(0,201,167,0.15);
  border: 1px solid rgba(0,201,167,0.3);
  border-radius: 100px;
  color: var(--vns-teal);
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.ev-specs-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
}
.ev-specs-table tr { border-bottom: 1px solid rgba(255,255,255,0.06); }
.ev-specs-table td {
  padding: 8px 0;
  font-size: 0.85rem;
}
.ev-specs-table td:first-child { color: rgba(255,255,255,0.45); width: 40%; }
.ev-specs-table td:last-child  { color: var(--vns-white); font-weight: 600; }

.ev-card-actions { display: flex; flex-direction: column; gap: 10px; }
.ev-datasheet {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--vns-teal);
  font-weight: 600;
}

/* ROI bar */
.ev-roi-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(245,166,35,0.08);
  border-radius: var(--r-sm);
  margin-bottom: 20px;
}
.ev-roi-number { font-size: 1.6rem; font-weight: 900; color: var(--vns-solar); }
.ev-roi-label  { font-size: 0.82rem; color: rgba(255,255,255,0.6); }

/* ── 13. ROI Calculator ──────────────────────────────────────────────────── */
.vns-calculator {
  background: linear-gradient(135deg, var(--vns-navy) 0%, #0A2240 100%);
  position: relative;
  overflow: hidden;
}
.vns-calculator::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(245,166,35,0.08) 0%, transparent 60%);
  pointer-events: none;
}
.vns-calculator .vns-container { position: relative; z-index: 1; }
.vns-calc-eyebrow  { color: var(--vns-solar); }
.vns-calc-eyebrow::before { background: var(--vns-solar); }
.vns-calc-title    { color: var(--vns-white); margin-bottom: 12px; }
.vns-calc-sub      { color: rgba(255,255,255,0.6); max-width: 560px; }

.vns-calc-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 56px;
  align-items: start;
}
.calc-form-area {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-lg);
  padding: 40px 36px;
}
.calc-form-area h3 {
  color: var(--vns-white);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 24px;
}
.calc-field {
  margin-bottom: 20px;
}
.calc-field label {
  display: block;
  color: rgba(255,255,255,0.7);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.calc-field input,
.calc-field select {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--r-sm);
  color: var(--vns-white);
  font-family: var(--vns-font);
  font-size: 1rem;
  font-weight: 600;
  transition: border-color var(--t) var(--ease);
  min-height: 48px;
}
.calc-field input::placeholder { color: rgba(255,255,255,0.35); }
.calc-field input:focus,
.calc-field select:focus {
  outline: none;
  border-color: var(--vns-solar);
  background: rgba(245,166,35,0.08);
}
.calc-field select option { background: var(--vns-navy); color: var(--vns-white); }

.calc-results-area {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.calc-result-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r-md);
  padding: 24px 28px;
  transition: border-color var(--t) var(--ease);
}
.calc-result-card.highlighted {
  border-color: rgba(245,166,35,0.4);
  background: rgba(245,166,35,0.06);
}
.calc-result-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.calc-result-value {
  font-size: 2rem;
  font-weight: 900;
  color: var(--vns-white);
  letter-spacing: -0.02em;
  line-height: 1;
}
.calc-result-value.solar-color { color: var(--vns-solar); }
.calc-result-value.teal-color  { color: var(--vns-teal); }
.calc-result-sub {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
  margin-top: 4px;
}
.calc-disclaimer {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
  text-align: center;
  padding-top: 8px;
  font-style: italic;
  line-height: 1.5;
}

/* ── 14. Process (Infographic) ───────────────────────────────────────────── */
.vns-process { background: var(--vns-light); }

.vns-process-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 56px;
  position: relative;
}
.vns-process-timeline::before {
  content: '';
  position: absolute;
  top: 40px;
  left: calc(12.5% + 4px);
  width: calc(75% - 8px);
  height: 2px;
  background: linear-gradient(90deg, var(--vns-solar), var(--vns-teal));
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 16px;
  position: relative;
}
.process-step-number {
  width: 80px; height: 80px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  font-weight: 900;
  position: relative;
  z-index: 1;
  margin-bottom: 20px;
  border: 3px solid transparent;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.process-step:hover .process-step-number {
  transform: scale(1.1);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}
.process-step:nth-child(1) .process-step-number { background: var(--vns-cta); color: #fff; }
.process-step:nth-child(2) .process-step-number { background: var(--vns-solar); color: var(--vns-dark); }
.process-step:nth-child(3) .process-step-number { background: var(--vns-teal); color: var(--vns-dark); }
.process-step:nth-child(4) .process-step-number { background: var(--vns-navy); color: #fff; }

.process-step h3 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--vns-text);
  margin-bottom: 8px;
}
.process-step p {
  font-size: 0.88rem;
  color: var(--vns-text-muted);
  line-height: 1.6;
}
.process-time {
  display: inline-block;
  margin-top: 10px;
  padding: 4px 12px;
  background: var(--vns-white);
  border: 1px solid var(--vns-border);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--vns-solar);
}

/* ── 15. Trust / Why VN Solar ─────────────────────────────────────────────── */
.vns-why {
  background: var(--vns-white);
}
.vns-why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.why-card {
  padding: 32px 28px;
  border: 1px solid var(--vns-border);
  border-radius: var(--r-lg);
  transition: box-shadow var(--t) var(--ease), transform var(--t) var(--ease),
              border-color var(--t) var(--ease);
}
.why-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.07);
  border-color: var(--vns-solar);
}
.why-icon {
  font-size: 2.4rem;
  margin-bottom: 14px;
  display: block;
}
.why-card h3 { font-size: 1.05rem; font-weight: 800; margin-bottom: 8px; color: var(--vns-text); }
.why-card p  { font-size: 0.9rem; color: var(--vns-text-muted); line-height: 1.65; }
.why-highlight {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--vns-solar);
}

/* Brand logos */
.vns-brands {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--vns-border);
  text-align: center;
}
.brands-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--vns-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}
.brands-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
}
.brand-chip {
  padding: 12px 24px;
  background: var(--vns-light);
  border-radius: var(--r-sm);
  font-size: 1rem;
  font-weight: 800;
  color: var(--vns-text-muted);
  letter-spacing: 0.05em;
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}
.brand-chip:hover { background: var(--vns-solar); color: var(--vns-dark); }

/* ── 16. FAQ / Objection Handling ────────────────────────────────────────── */
.vns-faq { background: var(--vns-light); }

.vns-faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 48px;
  align-items: start;
}
.faq-intro-card {
  background: var(--vns-navy);
  border-radius: var(--r-lg);
  padding: 40px 36px;
  position: sticky;
  top: 100px;
}
.faq-intro-card h3 {
  color: var(--vns-white);
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.faq-intro-card p {
  color: rgba(255,255,255,0.65);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 28px;
}
.faq-cta-img {
  aspect-ratio: 4/3;
  background: rgba(255,255,255,0.05);
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px;
  overflow: hidden;
}
.faq-cta-img .img-placeholder-label { font-size: 0.72rem; }

.faq-list { display: flex; flex-direction: column; gap: 12px; }

.faq-item {
  background: var(--vns-white);
  border: 1px solid var(--vns-border);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color var(--t) var(--ease);
}
.faq-item.open { border-color: var(--vns-solar); }

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--vns-font);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--vns-text);
  cursor: pointer;
  transition: color var(--t) var(--ease);
  min-height: 48px;
}
.faq-item.open .faq-question { color: var(--vns-solar); }
.faq-icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--vns-light);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-size: 0.9rem;
  font-weight: 900;
  transition: transform var(--t) var(--ease), background var(--t) var(--ease);
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--vns-solar);
  color: var(--vns-dark);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}
.faq-item.open .faq-answer { max-height: 400px; }
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.92rem;
  color: var(--vns-text-muted);
  line-height: 1.75;
  border-top: 1px solid var(--vns-border);
  padding-top: 16px;
}
.faq-answer-inner strong { color: var(--vns-text); }
.faq-answer-inner .highlight-box {
  background: rgba(245,166,35,0.08);
  border-left: 3px solid var(--vns-solar);
  padding: 12px 16px;
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  margin-top: 12px;
  font-weight: 600;
  color: var(--vns-text);
}

/* ── 17. Service Plans ───────────────────────────────────────────────────── */
.vns-services {
  background: linear-gradient(135deg, #0B1A34 0%, #091426 100%);
  position: relative;
  overflow: hidden;
}
.vns-services-canvas {
  position: absolute;
  inset: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 0;
}
.vns-services .vns-container { position: relative; z-index: 1; }
.vns-services-eyebrow { color: var(--vns-teal); }
.vns-services-eyebrow::before { background: var(--vns-teal); }
.vns-services-title { color: var(--vns-white); margin-bottom: 12px; }
.vns-services-sub   { color: rgba(255,255,255,0.6); max-width: 560px; }

.vns-services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 56px;
}
.service-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-lg);
  padding: 40px 36px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease);
}
.service-card:hover {
  border-color: rgba(245,166,35,0.5);
  transform: translateY(-4px);
}
.service-card .service-glow {
  position: absolute;
  top: 0; right: 0;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245,166,35,0.1) 0%, transparent 70%);
  transform: translate(40%, -40%);
  pointer-events: none;
}
.service-plan-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(245,166,35,0.15);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--vns-solar);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.service-card h3 {
  color: var(--vns-white);
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.service-card > p {
  color: rgba(255,255,255,0.6);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 28px;
}
.service-benefits { display: flex; flex-direction: column; gap: 10px; margin-bottom: 32px; }
.service-benefit {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  line-height: 1.5;
}
.service-benefit-icon {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: rgba(0,201,167,0.2);
  color: var(--vns-teal);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem;
  font-weight: 900;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ── 18. Final CTA Section ───────────────────────────────────────────────── */
.vns-cta-final {
  background: var(--vns-dark);
  position: relative;
  overflow: hidden;
}
.vns-cta-canvas {
  position: absolute;
  inset: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 0;
}
.vns-cta-final .vns-container { position: relative; z-index: 1; }

.vns-cta-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.vns-cta-copy h2 {
  color: var(--vns-white);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.vns-cta-copy h2 span { color: var(--vns-solar); }
.vns-cta-copy p {
  color: rgba(255,255,255,0.65);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 28px;
}
.vns-cta-channels {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}
.cta-channel {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
}
.cta-channel strong { color: var(--vns-white); }
.cta-channel-icon {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* Contact Form */
.vns-contact-form {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-lg);
  padding: 40px 36px;
}
.vns-contact-form h3 {
  color: var(--vns-white);
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 24px;
}
.form-field {
  margin-bottom: 16px;
}
.form-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255,255,255,0.65);
  margin-bottom: 6px;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 13px 16px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--r-sm);
  color: var(--vns-white);
  font-family: var(--vns-font);
  font-size: 0.95rem;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
  min-height: 48px;
  resize: none;
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: rgba(255,255,255,0.3); }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--vns-solar);
  background: rgba(245,166,35,0.06);
}
.form-field select option { background: var(--vns-navy); color: var(--vns-white); }

.form-submit-area { margin-top: 8px; }
.form-note {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
  margin-top: 10px;
  text-align: center;
}
.form-success {
  display: none;
  text-align: center;
  padding: 32px;
  color: var(--vns-teal);
  font-weight: 700;
  font-size: 1rem;
}

/* ── 19. Footer ──────────────────────────────────────────────────────────── */
.vns-footer {
  background: var(--vns-dark);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 32px;
}
.vns-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .vns-logo { margin-bottom: 14px; }
.footer-brand p {
  font-size: 0.87rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
  max-width: 280px;
  margin-bottom: 20px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}
.footer-social a:hover { background: var(--vns-solar); color: var(--vns-dark); }

.footer-col h4 {
  color: var(--vns-white);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col ul li a {
  color: rgba(255,255,255,0.5);
  font-size: 0.87rem;
  transition: color var(--t) var(--ease);
}
.footer-col ul li a:hover { color: var(--vns-solar); }

.vns-footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.vns-footer-bottom p { font-size: 0.82rem; color: rgba(255,255,255,0.35); }
.footer-cert {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
}
.cert-badge {
  padding: 3px 10px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
}

/* ── 20. Star / Particle Animation ──────────────────────────────────────── */
/*
  Stars rendered via Canvas in vnsolar.js.
  These are style targets for canvas containers.
*/
.stars-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.6;
}

/* ── 21. Scroll Animations ───────────────────────────────────────────────── */
.vns-reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.vns-reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}
.vns-reveal-delay-1 { transition-delay: 0.1s; }
.vns-reveal-delay-2 { transition-delay: 0.2s; }
.vns-reveal-delay-3 { transition-delay: 0.3s; }
.vns-reveal-delay-4 { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
  .vns-reveal { opacity: 1; transform: none; }
  .vns-ticker-inner { animation: none; }
  .badge-dot, .vns-hero-pulse { animation: none; }
}

/* ── 22. Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  :root { --section-gap: 80px; }
  .vns-product-grid { grid-template-columns: repeat(2, 1fr); }
  .vns-streams-grid { grid-template-columns: 1fr; gap: 16px; }
  .vns-process-timeline { grid-template-columns: 1fr 1fr; gap: 32px; }
  .vns-process-timeline::before { display: none; }
  .vns-footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --section-gap: 60px; }

  /* Nav */
  .vns-nav, .vns-nav-cta { display: none; }
  .vns-hamburger { display: flex; }
  .vns-nav-inner { gap: 16px; }

  /* Hero */
  .vns-hero-img-placeholder { display: none; }
  .vns-hero-inner { padding-block: 60px 40px; }
  .vns-hero-headline { white-space: normal; font-size: clamp(1.9rem, 8vw, 2.8rem); }
  .vns-hero-trust { flex-wrap: wrap; gap: 8px; }
  .vns-hero-trust .trust-chip { font-size: 0.76rem; padding: 5px 10px; }
  .vns-btn-group { flex-direction: column; align-items: stretch; }
  .vns-btn-group .vns-btn { text-align: center; justify-content: center; }

  /* Grids */
  .vns-pain-grid        { grid-template-columns: 1fr; }
  .vns-streams-grid     { grid-template-columns: 1fr; }
  .vns-product-grid     { grid-template-columns: 1fr 1fr; }
  .vns-ev-grid          { grid-template-columns: 1fr; }
  .ev-card              { flex-direction: column; }
  .ev-card-img          { width: 100%; aspect-ratio: 2/1; }
  .vns-calc-wrapper     { grid-template-columns: 1fr; }
  .vns-process-timeline { grid-template-columns: 1fr 1fr; }
  .vns-why-grid         { grid-template-columns: 1fr; }
  .vns-faq-grid         { grid-template-columns: 1fr; }
  .faq-intro-card       { position: static; }
  .vns-services-grid    { grid-template-columns: 1fr; }
  .vns-cta-inner        { grid-template-columns: 1fr; gap: 40px; }
  .vns-footer-grid      { grid-template-columns: 1fr; }
  .vns-footer-bottom    { flex-direction: column; text-align: center; }
  .brands-row           { gap: 20px; }
}

@media (max-width: 480px) {
  .vns-product-grid  { grid-template-columns: 1fr; }
  .vns-process-timeline { grid-template-columns: 1fr; }
  .calc-form-area, .vns-contact-form { padding: 28px 20px; }
}

/* ── 23. Utility ──────────────────────────────────────────────────────────── */
.text-center { text-align: center; }
.text-white  { color: var(--vns-white); }
.mt-0        { margin-top: 0; }
.section-header { max-width: 640px; }
.section-header.centered { margin-inline: auto; text-align: center; }
.section-header.centered .vns-eyebrow::before { display: none; }
.section-header.centered .vns-eyebrow { justify-content: center; }
.section-header p { margin-top: 12px; }

/* ── 24. Sticky WhatsApp button ──────────────────────────────────────────── */
.vns-float-cta {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}
.vns-float-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  font-size: 1.5rem;
  box-shadow: 0 6px 24px rgba(0,0,0,0.25);
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
  text-decoration: none;
}
.vns-float-btn:hover { transform: scale(1.1); }
.vns-float-whatsapp { background: #25D366; }
.vns-float-phone    { background: var(--vns-solar); }