/* ==========================================================================
   MINH VIET HVAC - PREMIUM BRAND STYLESHEET
   CÔNG TY CỔ PHẦN CƠ ĐIỆN LẠNH MINH VIỆT
   Official Colors: Deep Cobalt Navy (#163275) & Vibrant Azure Blue (#0088CC)
   ========================================================================== */

:root {
  /* Minh Việt HVAC Official Brand Palette */
  --mv-navy-darkest: #071326;
  --mv-navy-deep:    #0D1F3D;
  --mv-navy:         #163275; /* Logo Top Geometric Icon */
  --mv-navy-light:   #1E4496;
  --mv-blue:         #0088CC; /* Logo Text "MINH VIET" Azure Blue */
  --mv-blue-hover:   #0074B0;
  --mv-cyan:         #06B6D4;
  --mv-sky:          #38BDF8;
  --mv-sky-light:    #E0F2FE;
  --mv-ice-glow:     rgba(0, 136, 204, 0.25);

  /* High-Converting Accent Colors */
  --accent-orange:       #F97316;
  --accent-orange-hover: #EA580C;
  --accent-green:        #10B981;
  --accent-red:          #EF4444;

  /* Neutral Palette */
  --neutral-900: #0F172A;
  --neutral-800: #1E293B;
  --neutral-700: #334155;
  --neutral-600: #475569;
  --neutral-500: #64748B;
  --neutral-400: #94A3B8;
  --neutral-300: #CBD5E1;
  --neutral-200: #E2E8F0;
  --neutral-100: #F1F5F9;
  --neutral-50:  #F8FAFC;
  --white:       #FFFFFF;

  /* Signature Gradients */
  --grad-hero:        linear-gradient(135deg, #071326 0%, #163275 55%, #0088CC 100%);
  --grad-brand:       linear-gradient(135deg, #163275 0%, #0088CC 100%);
  --grad-brand-light: linear-gradient(135deg, #0088CC 0%, #38BDF8 100%);
  --grad-card-dark:   linear-gradient(180deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
  --grad-card-light:  linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
  --grad-cta:         linear-gradient(90deg, #F97316 0%, #FB923C 100%);

  /* Shadows & Depth */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 14px -2px rgba(22, 50, 117, 0.12), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 14px 30px -4px rgba(22, 50, 117, 0.18), 0 4px 12px -2px rgba(0, 0, 0, 0.06);
  --shadow-xl: 0 24px 48px -8px rgba(13, 31, 61, 0.25), 0 12px 24px -6px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 35px rgba(0, 136, 204, 0.45);

  /* Typography & Layout */
  --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --container-max: 1320px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Transitions */
  --transition-fast: 0.18s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   RESET & BASE
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--neutral-50);
  color: var(--neutral-700);
  line-height: 1.65;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all var(--transition-fast);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

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

/* ==========================================================================
   TOP BAR
   ========================================================================== */
.topbar {
  background: var(--mv-navy-darkest);
  color: var(--neutral-300);
  font-size: 0.85rem;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.topbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.topbar-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.topbar-item svg {
  width: 15px;
  height: 15px;
  color: var(--mv-sky);
}

.topbar-highlight {
  color: var(--white);
  font-weight: 700;
}

/* ==========================================================================
   HEADER & NAVBAR
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13, 31, 61, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 14px 0;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(7, 19, 38, 0.98);
  padding: 10px 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  width: 100%;
}

/* ==========================================================================
   BRAND LOGO - LUXURY HIGHLIGHT STYLING
   ========================================================================== */
.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo-img-box {
  background: #FFFFFF;
  padding: 6px 14px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid rgba(56, 189, 248, 0.5);
  box-shadow: 0 4px 16px rgba(0, 136, 204, 0.35), 0 0 12px rgba(56, 189, 248, 0.2);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.brand-logo-img-box::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    60deg,
    transparent 20%,
    rgba(255, 255, 255, 0.6) 50%,
    transparent 80%
  );
  transform: rotate(25deg) translateY(-100%);
  transition: transform 0.75s ease;
  pointer-events: none;
}

.brand-logo-img-box:hover::after {
  transform: rotate(25deg) translateY(100%);
}

.brand-logo-img-box:hover {
  transform: translateY(-2px) scale(1.02);
  border-color: #38BDF8;
  box-shadow: 0 8px 24px rgba(0, 136, 204, 0.5), 0 0 20px rgba(56, 189, 248, 0.4);
}

.brand-logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.08));
}

.brand-text-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-company-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  letter-spacing: 0.2px;
  white-space: nowrap;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.brand-company-title span {
  color: var(--mv-sky);
  text-shadow: 0 0 12px rgba(56, 189, 248, 0.6);
}

.brand-company-sub {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
  color: var(--mv-sky);
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  background: rgba(0, 136, 204, 0.18);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 2px 8px;
  border-radius: 4px;
  width: fit-content;
  white-space: nowrap;
}

/* Navigation Links Wrapper */
.nav-center-wrapper {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0 15px;
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: center;
  list-style: none;
  gap: clamp(8px, 1.2vw, 18px);
  margin: 0;
  padding: 0;
}

.nav-link {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 8px 12px;
  position: relative;
  white-space: nowrap;
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--mv-sky);
  background: rgba(0, 136, 204, 0.14);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 12px;
  right: 12px;
  height: 2.5px;
  background: var(--mv-sky);
  border-radius: 2px;
  opacity: 0;
  transform: scaleX(0);
  transition: all var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* Hamburger Button */
.hamburger-btn {
  display: none;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--white);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.hamburger-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   MOBILE MENU DRAWER
   ========================================================================== */
.mobile-drawer-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  background: rgba(7, 19, 38, 0.7);
  backdrop-filter: blur(8px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer {
  position: fixed;
  top: 0; right: -320px;
  width: 300px; height: 100%;
  background: var(--mv-navy-deep);
  border-left: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
  z-index: 2001;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 24px 20px;
  transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-drawer.open {
  right: 0;
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.drawer-close-btn {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--white);
  width: 36px; height: 36px;
  border-radius: 8px;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.drawer-menu {
  list-style: none;
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.drawer-link {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
  font-weight: 600;
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.drawer-link:hover, .drawer-link.active {
  background: rgba(0, 136, 204, 0.2);
  color: var(--mv-sky);
}

.drawer-footer {
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   BUTTONS & CTAs
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  outline: none;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--grad-brand);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(0, 136, 204, 0.35);
}

.btn-primary:hover {
  background: var(--grad-brand-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 136, 204, 0.5);
  color: var(--white);
}

.btn-orange {
  background: var(--grad-cta);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(249, 115, 22, 0.4);
}

.btn-orange:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(249, 115, 22, 0.6);
  color: var(--white);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
}

.btn-outline-mv {
  background: transparent;
  color: var(--mv-blue);
  border: 1.5px solid var(--mv-blue);
}

.btn-outline-mv:hover {
  background: var(--mv-blue);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(0, 136, 204, 0.3);
}

.btn-lg {
  padding: 16px 30px;
  font-size: 1.02rem;
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.86rem;
}

/* ==========================================================================
   HERO SECTION & ANIMATED AIRFLOW
   ========================================================================== */
.hero {
  position: relative;
  background: var(--grad-hero);
  color: var(--white);
  padding: 80px 0 100px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -150px; right: -100px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0, 136, 204, 0.25) 0%, rgba(22, 50, 117, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px; left: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.18) 0%, rgba(22, 50, 117, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 136, 204, 0.18);
  border: 1px solid rgba(56, 189, 248, 0.4);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--mv-sky);
  margin-bottom: 22px;
  letter-spacing: 0.3px;
}

.hero-title {
  font-size: 2.85rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  color: var(--white);
}

.hero-title span {
  background: linear-gradient(135deg, #FFFFFF 30%, #38BDF8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.1rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.hero-trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.92);
}

.trust-item svg {
  color: var(--accent-green);
  width: 18px; height: 18px;
  flex-shrink: 0;
}

/* Hero Visual Art & Airflow Animation */
.hero-visual-wrapper {
  position: relative;
}

.hero-main-card {
  background: var(--grad-card-dark);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(12px);
}

.card-img-placeholder {
  position: relative;
  width: 100%; height: 390px;
  background: #081a38;
  overflow: hidden;
}

.hero-interior-art {
  width: 100%; height: 100%;
  object-fit: cover;
}

/* Airflow wave animation keyframes */
@keyframes airflowFlow {
  0% {
    stroke-dashoffset: 40;
    opacity: 0.4;
  }
  50% {
    opacity: 1;
  }
  100% {
    stroke-dashoffset: 0;
    opacity: 0.4;
  }
}

.air-stream-line-1 {
  stroke-dasharray: 8 6;
  animation: airflowFlow 2.8s linear infinite;
}

.air-stream-line-2 {
  stroke-dasharray: 8 6;
  animation: airflowFlow 2.2s linear infinite 0.7s;
}

.air-stream-line-3 {
  stroke-dasharray: 8 6;
  animation: airflowFlow 2.8s linear infinite 1.4s;
}

/* Diffuser Glow */
@keyframes diffuserPulse {
  0%, 100% {
    opacity: 0.8;
    filter: drop-shadow(0 0 6px #0088CC);
  }
  50% {
    opacity: 1;
    filter: drop-shadow(0 0 14px #38BDF8);
  }
}

.diffuser-glow-bar {
  animation: diffuserPulse 3s ease-in-out infinite;
}

.floating-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(13, 31, 61, 0.94);
  border: 1px solid rgba(56, 189, 248, 0.4);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  backdrop-filter: blur(16px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.45);
  color: var(--white);
  animation: floatAnim 4s ease-in-out infinite;
  z-index: 10;
}

.floating-badge.badge-top-left {
  top: -20px; left: -25px;
}

.floating-badge.badge-bottom-right {
  bottom: -20px; right: -20px;
  animation-delay: 2s;
}

.badge-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--grad-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.badge-text strong {
  display: block;
  font-size: 1rem;
  font-weight: 800;
  color: var(--white);
}

.badge-text span {
  font-size: 0.78rem;
  color: var(--neutral-300);
}

@keyframes floatAnim {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ==========================================================================
   PARTNERS / BRAND LOGOS
   ========================================================================== */
.brand-strip {
  background: var(--white);
  padding: 28px 0;
  border-bottom: 1px solid var(--neutral-200);
}

.brand-wrapper-logos {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.brand-item-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  border-radius: 8px;
  font-weight: 800;
  color: var(--mv-navy);
  letter-spacing: 1px;
  font-size: 1.02rem;
  transition: all var(--transition-fast);
}

.brand-item-badge:hover {
  background: var(--mv-sky-light);
  border-color: var(--mv-blue);
  color: var(--mv-blue);
  transform: translateY(-2px);
}

/* ==========================================================================
   PAIN POINTS
   ========================================================================== */
.section-padding {
  padding: 85px 0;
}

.section-header {
  text-align: center;
  max-width: 740px;
  margin: 0 auto 50px;
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--mv-blue);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--neutral-900);
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.06rem;
  color: var(--neutral-600);
  line-height: 1.65;
}

.grid-cards-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.pain-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  transition: all var(--transition-normal);
}

.pain-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(239, 68, 68, 0.4);
}

.pain-icon-box {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: #FEE2E2;
  color: #DC2626;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.pain-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 12px;
}

.pain-desc {
  font-size: 0.92rem;
  color: var(--neutral-600);
  line-height: 1.6;
}

/* ==========================================================================
   SOLUTIONS & SERVICES
   ========================================================================== */
.solutions-section {
  background: var(--mv-navy-darkest);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.solutions-section::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 1000px; height: 400px;
  background: radial-gradient(ellipse, rgba(0, 136, 204, 0.18) 0%, rgba(0,0,0,0) 70%);
  pointer-events: none;
}

.solutions-section .section-title {
  color: var(--white);
}

.solutions-section .section-subtitle {
  color: var(--neutral-300);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.solution-card {
  background: var(--grad-card-dark);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.solution-card:hover {
  transform: translateY(-6px);
  border-color: var(--mv-blue);
  box-shadow: 0 15px 35px rgba(0, 136, 204, 0.25);
}

.sol-icon {
  width: 60px; height: 60px;
  border-radius: 16px;
  background: rgba(0, 136, 204, 0.18);
  border: 1px solid rgba(56, 189, 248, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mv-sky);
  margin-bottom: 24px;
}

.sol-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}

.sol-target {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--mv-sky);
  background: rgba(0, 136, 204, 0.15);
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 14px;
}

.sol-desc {
  font-size: 0.94rem;
  color: var(--neutral-300);
  line-height: 1.65;
  margin-bottom: 24px;
}

.sol-features {
  list-style: none;
  margin-bottom: 24px;
}

.sol-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--neutral-200);
  margin-bottom: 10px;
}

.sol-features li svg {
  color: var(--accent-green);
  width: 16px; height: 16px;
  flex-shrink: 0;
}

/* ==========================================================================
   INTERACTIVE HVAC CAPACITY & COST CALCULATOR
   ========================================================================== */
.calculator-section {
  background: #F0F7FF;
  position: relative;
}

.calc-box {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: 44px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.calc-inputs-col h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--mv-navy);
  margin-bottom: 20px;
}

.calc-field-group {
  margin-bottom: 18px;
}

.calc-label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--neutral-800);
  margin-bottom: 8px;
}

.calc-input, .calc-select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--neutral-300);
  border-radius: var(--radius-sm);
  background: var(--neutral-50);
  font-size: 0.95rem;
  color: var(--neutral-800);
  transition: all var(--transition-fast);
}

.calc-input:focus, .calc-select:focus {
  outline: none;
  border-color: var(--mv-blue);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(0, 136, 204, 0.15);
}

.calc-results-card {
  background: var(--grad-hero);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-lg);
}

.calc-result-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  padding-bottom: 18px;
  margin-bottom: 20px;
}

.calc-result-header h4 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--white);
}

.calc-result-header p {
  font-size: 0.85rem;
  color: var(--mv-sky);
}

.calc-metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.calc-metric-item {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 14px 10px;
  text-align: center;
}

.calc-metric-val {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--mv-sky);
  line-height: 1.1;
  margin-bottom: 4px;
}

.calc-metric-lbl {
  font-size: 0.74rem;
  color: rgba(255, 255, 255, 0.85);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.calc-recommendation {
  background: rgba(0, 136, 204, 0.2);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 20px;
}

.calc-rec-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--mv-sky);
  margin-bottom: 6px;
}

.calc-rec-text {
  font-size: 0.85rem;
  color: var(--white);
  line-height: 1.5;
}

/* ==========================================================================
   PROJECT SHOWCASE GALLERY
   ========================================================================== */
.projects-section {
  background: var(--white);
}

.project-filter-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.filter-tab-btn {
  padding: 10px 22px;
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  border-radius: 30px;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--neutral-700);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-tab-btn:hover, .filter-tab-btn.active {
  background: var(--mv-navy);
  border-color: var(--mv-navy);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(22, 50, 117, 0.25);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--neutral-50);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--mv-blue);
}

.project-img-wrapper {
  position: relative;
  height: 220px;
  background: var(--mv-navy-deep);
  overflow: hidden;
}

.project-tag-badge {
  position: absolute;
  top: 14px; left: 14px;
  background: rgba(13, 31, 61, 0.85);
  color: var(--mv-sky);
  border: 1px solid rgba(56, 189, 248, 0.4);
  backdrop-filter: blur(8px);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.project-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-grow: 1;
}

.project-name {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--mv-navy);
  margin-bottom: 8px;
}

.project-spec-list {
  list-style: none;
  font-size: 0.86rem;
  color: var(--neutral-600);
  margin: 12px 0 20px;
}

.project-spec-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.project-spec-list li svg {
  color: var(--mv-blue);
  width: 14px; height: 14px;
}

/* ==========================================================================
   BLUEPRINT UPLOAD & FAST QUOTE SECTION
   ========================================================================== */
.blueprint-section {
  background: linear-gradient(180deg, #F0F7FF 0%, #FFFFFF 100%);
  position: relative;
}

.blueprint-container-box {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1.15fr;
}

.blueprint-left-info {
  background: var(--grad-hero);
  color: var(--white);
  padding: 50px 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.blueprint-left-info::after {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background: radial-gradient(circle at 100% 0%, rgba(0, 136, 204, 0.25) 0%, rgba(0,0,0,0) 60%);
  pointer-events: none;
}

.promo-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(249, 115, 22, 0.2);
  border: 1px solid rgba(249, 115, 22, 0.5);
  color: #FB923C;
  padding: 6px 14px;
  border-radius: 30px;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.blueprint-left-info h3 {
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--white);
}

.blueprint-left-info p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  margin-bottom: 28px;
}

.reward-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.reward-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--mv-sky);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.reward-items {
  list-style: none;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.9);
}

.reward-items li {
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.guarantee-note {
  font-size: 0.82rem;
  color: var(--neutral-300);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Form Styles */
.blueprint-right-form {
  padding: 50px 44px;
}

.form-header {
  margin-bottom: 24px;
}

.form-header h4 {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--mv-navy);
  margin-bottom: 6px;
}

.form-header p {
  font-size: 0.9rem;
  color: var(--neutral-500);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--neutral-800);
}

.form-label .req {
  color: #EF4444;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--neutral-300);
  border-radius: var(--radius-sm);
  background: var(--neutral-50);
  color: var(--neutral-800);
  font-size: 0.92rem;
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--mv-blue);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(0, 136, 204, 0.15);
}

/* Drag & Drop Upload Zone */
.file-upload-dropzone {
  border: 2px dashed var(--mv-blue);
  background: #F0F7FF;
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
}

.file-upload-dropzone:hover, .file-upload-dropzone.dragover {
  background: var(--mv-sky-light);
  border-color: var(--mv-navy);
}

.file-upload-dropzone input[type="file"] {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  opacity: 0;
  cursor: pointer;
}

.upload-icon {
  width: 44px; height: 44px;
  margin: 0 auto 10px;
  color: var(--mv-blue);
}

.upload-text-main {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--neutral-800);
  margin-bottom: 4px;
}

.upload-text-sub {
  font-size: 0.8rem;
  color: var(--neutral-500);
}

.file-preview-pill {
  display: none;
  align-items: center;
  justify-content: space-between;
  background: #DBEAFE;
  color: var(--mv-navy);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-top: 10px;
}

.fallback-tip {
  font-size: 0.8rem;
  color: var(--neutral-500);
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ==========================================================================
   BENEFITS & METRICS
   ========================================================================== */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.benefit-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  border: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: all var(--transition-normal);
}

.benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--mv-blue);
}

.benefit-stat {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--mv-blue);
  margin-bottom: 8px;
  line-height: 1;
}

.benefit-label {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 10px;
}

.benefit-desc {
  font-size: 0.88rem;
  color: var(--neutral-600);
  line-height: 1.55;
}

/* ==========================================================================
   PROCESS TIMELINE
   ========================================================================== */
.process-section {
  background: #F8FAFC;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
}

.process-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  position: relative;
  transition: all var(--transition-normal);
}

.process-card:hover {
  border-color: var(--mv-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.process-step-num {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--mv-navy);
  color: var(--white);
  font-weight: 800;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.process-step-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 8px;
}

.process-step-desc {
  font-size: 0.85rem;
  color: var(--neutral-600);
  line-height: 1.5;
}

/* ==========================================================================
   FAQ & ACCORDION
   ========================================================================== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  background: transparent;
  border: none;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--neutral-900);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-icon {
  width: 20px; height: 20px;
  transition: transform var(--transition-fast);
  color: var(--mv-blue);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  padding: 0 24px;
  color: var(--neutral-600);
  font-size: 0.92rem;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 20px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background: var(--mv-navy-darkest);
  color: var(--neutral-400);
  padding: 70px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-col h5 {
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a:hover {
  color: var(--mv-sky);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

/* ==========================================================================
   FLOATING ACTION BUTTONS & BACK TO TOP
   ========================================================================== */
.floating-contact-widget {
  position: fixed;
  bottom: 30px; right: 25px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 999;
}

.float-btn {
  width: 52px; height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
}

.float-btn:hover {
  transform: scale(1.1);
}

.float-zalo {
  background: #0068FF;
}

.float-phone {
  background: var(--accent-green);
  animation: pulsePhone 2s infinite;
}

.float-phone-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.float-phone-number {
  background: var(--accent-green);
  color: var(--white);
  font-weight: 700;
  font-size: 0.85rem;
  white-space: nowrap;
  padding: 8px 14px;
  border-radius: 20px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
  animation: blinkPhoneNumber 2s infinite;
}

@keyframes blinkPhoneNumber {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.float-back-to-top {
  background: var(--mv-navy);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: none;
}

.float-back-to-top.visible {
  display: flex;
}

@keyframes pulsePhone {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { box-shadow: 0 0 0 15px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* ==========================================================================
   STICKY MOBILE BOTTOM ACTION BAR
   ========================================================================== */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0; left: 0;
  width: 100%;
  background: var(--mv-navy-deep);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 10px 16px;
  z-index: 990;
  box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.25);
}

.mobile-bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.4fr;
  gap: 10px;
}

.mob-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 8px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--white);
  text-align: center;
}

.mob-call {
  background: var(--accent-green);
}

.mob-zalo {
  background: #0068FF;
}

.mob-quote {
  background: var(--accent-orange);
}

/* ==========================================================================
   LUXURY SUCCESS MODAL
   ========================================================================== */
.success-modal-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  background: rgba(7, 19, 38, 0.75);
  backdrop-filter: blur(10px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.success-modal-overlay.show {
  opacity: 1;
  visibility: visible;
}

.success-modal-box {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  max-width: 480px; width: 100%;
  text-align: center;
  box-shadow: var(--shadow-xl);
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.success-modal-overlay.show .success-modal-box {
  transform: scale(1);
}

.success-icon-check {
  width: 70px; height: 70px;
  border-radius: 50%;
  background: #D1FAE5;
  color: #059669;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.success-modal-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--mv-navy);
  margin-bottom: 12px;
}

.success-modal-desc {
  font-size: 0.95rem;
  color: var(--neutral-600);
  line-height: 1.6;
  margin-bottom: 24px;
}

/* ==========================================================================
   SCROLL REVEAL ANIMATIONS
   ========================================================================== */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  .hero-description {
    margin: 0 auto 32px;
  }
  .hero-cta-group, .hero-trust-list {
    justify-content: center;
  }
  .calc-box {
    grid-template-columns: 1fr;
  }
  .blueprint-container-box {
    grid-template-columns: 1fr;
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .topbar {
    display: none;
  }
  .hero-title {
    font-size: 2.1rem;
  }
  .floating-badge {
    display: none;
  }
  .nav-menu, .nav-actions .btn {
    display: none;
  }
  .hamburger-btn {
    display: inline-flex;
  }
  .brand-logo-img-box {
    padding: 6px 12px;
  }
  .brand-logo-img {
    height: 42px;
  }
  .brand-company-title {
    font-size: 1.05rem;
  }
  .brand-company-sub {
    font-size: 0.68rem;
  }
  .calc-metrics-grid {
    grid-template-columns: 1fr 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-group.full-width {
    grid-column: span 1;
  }
  .calc-box {
    padding: 24px 18px;
  }
  .blueprint-right-form {
    padding: 30px 20px;
  }
  .blueprint-left-info {
    padding: 35px 24px;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .mobile-bottom-bar {
    display: block;
  }
  body {
    padding-bottom: 60px;
  }
  .floating-contact-widget {
    bottom: 75px;
    right: 15px;
  }
  .float-phone-number {
    font-size: 0.72rem;
    padding: 6px 10px;
  }
  .floating-wheel-btn {
    bottom: 75px;
    left: 15px;
    padding: 10px 14px;
    font-size: 0.8rem;
  }
}

/* ==========================================================================
   LUCKY SPIN WHEEL & OFFER POPUP
   ========================================================================== */
.floating-wheel-btn {
  position: fixed;
  bottom: 30px;
  left: 25px;
  z-index: 998;
  background: linear-gradient(135deg, #FF6B00 0%, #FFA500 50%, #FF4500 100%);
  color: var(--white);
  padding: 12px 20px;
  border-radius: 50px;
  font-weight: 800;
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 8px 25px rgba(255, 107, 0, 0.5), 0 0 15px rgba(255, 165, 0, 0.4);
  cursor: pointer;
  border: 2px solid rgba(255, 255, 255, 0.4);
  transition: all var(--transition-fast);
  animation: bounceGlow 3s infinite;
}

.floating-wheel-btn:hover {
  transform: scale(1.08) translateY(-3px);
  box-shadow: 0 12px 30px rgba(255, 107, 0, 0.7);
}

@keyframes bounceGlow {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.spin-modal-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  background: rgba(7, 19, 38, 0.82);
  backdrop-filter: blur(12px);
  z-index: 3500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.spin-modal-overlay.show {
  opacity: 1;
  visibility: visible;
}

.spin-modal-box {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 36px 30px;
  max-width: 520px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-xl);
  transform: scale(0.85);
  transition: transform var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.spin-modal-overlay.show .spin-modal-box {
  transform: scale(1);
}

.spin-modal-close {
  position: absolute;
  top: 16px;
  right: 18px;
  background: rgba(15, 23, 42, 0.08);
  border: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 1.1rem;
  color: var(--neutral-600);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.spin-modal-close:hover {
  background: #EF4444;
  color: var(--white);
}

.spin-modal-header {
  margin-bottom: 20px;
}

.spin-modal-badge {
  display: inline-block;
  background: rgba(249, 115, 22, 0.15);
  color: #EA580C;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 30px;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.spin-modal-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--mv-navy);
  margin-bottom: 6px;
}

.spin-modal-subtitle {
  font-size: 0.88rem;
  color: var(--neutral-500);
}

/* Wheel Canvas Stage */
.wheel-stage-container {
  position: relative;
  width: 320px;
  height: 320px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#luckyWheelCanvas {
  width: 320px;
  height: 320px;
  border-radius: 50%;
  box-shadow: 0 0 0 8px rgba(22, 50, 117, 0.9), 0 0 25px rgba(0, 136, 204, 0.4);
  transition: transform 4.5s cubic-bezier(0.15, 0.9, 0.25, 1);
}

.wheel-pointer {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 14px solid transparent;
  border-right: 14px solid transparent;
  border-top: 26px solid #EF4444;
  z-index: 10;
  filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.4));
}

.wheel-center-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #F97316 0%, #EA580C 100%);
  color: var(--white);
  border: 4px solid var(--white);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.35);
  font-weight: 800;
  font-size: 0.95rem;
  cursor: pointer;
  z-index: 15;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.wheel-center-btn:hover {
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: 0 6px 20px rgba(249, 115, 22, 0.6);
}

/* Winner Result Card */
.spin-result-card {
  display: none;
  background: #F0FDF4;
  border: 2px solid #86EFAC;
  border-radius: var(--radius-md);
  padding: 20px;
  margin-top: 15px;
  text-align: center;
  animation: fadeIn 0.4s ease;
}

.spin-winner-text {
  font-size: 1.15rem;
  font-weight: 800;
  color: #15803D;
  margin-bottom: 8px;
}

.spin-voucher-code {
  display: inline-block;
  background: #DCFCE7;
  color: #166534;
  border: 1px dashed #22C55E;
  padding: 4px 12px;
  border-radius: 6px;
  font-weight: 800;
  font-size: 0.9rem;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.spin-apply-btn {
  background: var(--grad-cta);
  color: var(--white);
  border: none;
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  width: 100%;
  transition: all var(--transition-fast);
}

.spin-apply-btn:hover {
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.5);
  transform: translateY(-2px);
}