:root{
  --c-blue:#0066FF;
  --c-purple:#7B2CBF;
  --c-pink:#FF006E;
  --c-orange:#FF6B35;
  --c-yellow:#FFD60A;
  --c-viettel:#EE0033;
  --c-vnpt:#005BAA;
  --c-fpt:#F37021;
  --grad-main:linear-gradient(135deg,#0066FF 0%,#7B2CBF 50%,#FF006E 100%);
  --grad-cta:linear-gradient(135deg,#FF6B35 0%,#FF006E 100%);
  --grad-warm:linear-gradient(135deg,#FFD60A 0%,#FF6B35 50%,#FF006E 100%);
}
*{font-family:'Be Vietnam Pro',sans-serif;}
html{scroll-behavior:smooth;}
body{overflow-x:hidden;background:#fafafa;}

/* Gradient text */
.gradient-text{
  background:var(--grad-main);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.gradient-text-warm{
  background:var(--grad-cta);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}

/* Animated gradient background */
@keyframes gradientShift{
  0%{background-position:0% 50%;}
  50%{background-position:100% 50%;}
  100%{background-position:0% 50%;}
}
.animated-gradient{
  background:linear-gradient(-45deg,#0066FF,#7B2CBF,#FF006E,#FF6B35);
  background-size:400% 400%;
  animation:gradientShift 15s ease infinite;
}

/* Float animation */
@keyframes float{
  0%,100%{transform:translateY(0) rotate(0deg);}
  50%{transform:translateY(-20px) rotate(2deg);}
}
.float-anim{animation:float 4s ease-in-out infinite;}
.float-anim-2{animation:float 5s ease-in-out infinite reverse;}
.float-anim-3{animation:float 6s ease-in-out infinite;}

/* Pulse */
@keyframes pulseRing{
  0%{transform:scale(1);opacity:1;}
  100%{transform:scale(2);opacity:0;}
}
.pulse-ring::before,.pulse-ring::after{
  content:'';position:absolute;inset:0;border-radius:50%;
  background:inherit;animation:pulseRing 2s ease-out infinite;z-index:-1;
}
.pulse-ring::after{animation-delay:1s;}

@keyframes pulseBtn{
  0%,100%{box-shadow:0 0 0 0 rgba(255,107,53,.7);}
  50%{box-shadow:0 0 0 15px rgba(255,107,53,0);}
}
.btn-pulse{animation:pulseBtn 2s infinite;}

/* Particles */
.particle{
  position:absolute;border-radius:50%;
  background:rgba(255,255,255,.5);
  pointer-events:none;
}
@keyframes particleFloat{
  0%{transform:translateY(100vh) translateX(0);opacity:0;}
  10%{opacity:1;}
  90%{opacity:1;}
  100%{transform:translateY(-100px) translateX(50px);opacity:0;}
}

/* Glassmorphism */
.glass{
  background:rgba(255,255,255,.15);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,.25);
}
.glass-dark{
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
}

/* Header */
.header-scrolled{
  background:rgba(255,255,255,.98)!important;
  backdrop-filter:blur(20px);
  box-shadow:0 4px 20px rgba(0,0,0,.08)!important;
}
.header-scrolled .nav-link{color:#1a1a1a!important;}
.header-scrolled .logo-text{color:#1a1a1a!important;}

/* Cards hover */
.card-hover{transition:all .4s cubic-bezier(.4,0,.2,1);}
.card-hover:hover{transform:translateY(-10px);box-shadow:0 25px 50px -12px rgba(123,44,191,.25);}

/* Pricing card */
.pricing-card{transition:all .4s ease;border:2px solid transparent;}
.pricing-card:hover{transform:translateY(-15px) scale(1.02);box-shadow:0 30px 60px -15px rgba(0,102,255,.3);}
.pricing-popular{
  background:linear-gradient(135deg,#fff 0%,#fff5f0 100%);
  border:2px solid transparent;
  background-image:linear-gradient(white,white),var(--grad-cta);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  position:relative;
}
.pricing-popular::before{
  content:'';position:absolute;inset:-2px;border-radius:inherit;
  background:var(--grad-cta);z-index:-1;
}

/* Tab buttons */
.tab-btn{transition:all .3s ease;}
.tab-btn.active{
  background:var(--grad-main);
  color:#fff;
  box-shadow:0 10px 30px -10px rgba(123,44,191,.5);
  transform:translateY(-2px);
}

/* Comparison table */
.compare-row:hover{background:linear-gradient(90deg,rgba(0,102,255,.05),rgba(255,0,110,.05));}

/* District card */
.district-card{transition:all .3s ease;}
.district-card:hover{
  transform:translateY(-5px);
  background:var(--grad-main);
  color:#fff;
}
.district-card:hover i,.district-card:hover .district-time{color:#fff!important;}

/* FAQ */
.faq-item{transition:all .3s ease;}
.faq-q{cursor:pointer;}
.faq-icon{transition:transform .3s ease;}
.faq-item.active .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;}
.faq-item.active .faq-a{max-height:300px;}

/* Promo cards */
.promo-card{transition:all .4s ease;position:relative;overflow:hidden;}
.promo-card::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(255,107,53,.1),rgba(255,0,110,.1));
  opacity:0;transition:opacity .3s;
}
.promo-card:hover::before{opacity:1;}
.promo-card:hover{transform:translateY(-10px) scale(1.02);}

/* Floating buttons */
.float-btn{
  position:fixed;width:60px;height:60px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:24px;z-index:1000;
  box-shadow:0 10px 30px rgba(0,0,0,.2);
  transition:transform .3s ease;cursor:pointer;
}
.float-btn:hover{transform:scale(1.1);}

/* Wave divider */
.wave-divider{
  position:absolute;bottom:-1px;left:0;width:100%;
  overflow:hidden;line-height:0;
}

/* Hero stats card */
.hero-stat{
  background:rgba(255,255,255,.15);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.2);
  border-radius:16px;
  padding:16px;
}

/* Custom scrollbar */
::-webkit-scrollbar{width:10px;}
::-webkit-scrollbar-track{background:#f1f1f1;}
::-webkit-scrollbar-thumb{background:var(--grad-main);border-radius:5px;}

/* Logo brand strip */
.brand-strip{
  background:linear-gradient(90deg,rgba(0,102,255,.05),rgba(255,0,110,.05));
}

/* Testimonial quote */
.quote-mark{
  font-size:60px;line-height:1;
  background:var(--grad-main);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  opacity:.5;
}

/* Mobile menu */
.mobile-menu{transition:max-height .4s ease;max-height:0;overflow:hidden;}
.mobile-menu.open{max-height:600px;}

/* Hide tab content */
.tab-content{display:none;}
.tab-content.active{display:grid;animation:fadeIn .4s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}

/* Radio custom */
.radio-card input{display:none;}
.radio-card label{
  display:flex;align-items:center;justify-content:center;
  padding:12px;border:2px solid #e5e7eb;border-radius:12px;
  cursor:pointer;transition:all .3s;font-weight:600;
}
.radio-card input:checked + label{
  background:var(--grad-main);color:#fff;border-color:transparent;
  box-shadow:0 10px 20px -8px rgba(123,44,191,.4);
}

/* Success message */
.success-msg{
  display:none;background:linear-gradient(135deg,#10b981,#059669);
  color:#fff;padding:20px;border-radius:12px;margin-top:20px;
}
.success-msg.show{display:block;animation:fadeIn .4s ease;}

/* Section padding */
.section-pad{padding:80px 0;}
@media (max-width:768px){.section-pad{padding:60px 0;}}

/* Hover shine */
.shine{position:relative;overflow:hidden;}
.shine::after{
  content:'';position:absolute;top:0;left:-100%;width:50%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);
  transition:left .8s;
}
.shine:hover::after{left:150%;}


/* === WordPress Plugin Wrapper === */
#wel-landing-wrapper { font-family: 'Be Vietnam Pro', sans-serif; }
#wel-landing-wrapper *, #wel-landing-wrapper *::before, #wel-landing-wrapper *::after { box-sizing: border-box; }
.wel-fullwidth-body { margin: 0; padding: 0; }
.wel-fullwidth-body #wpadminbar { display: none !important; }
html.wel-fullwidth-html { margin-top: 0 !important; }

/* Toast thông báo */
.wel-toast {
  position: fixed; top: 30px; right: 30px; z-index: 99999;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: #fff; padding: 18px 30px; border-radius: 15px;
  box-shadow: 0 10px 40px rgba(0,0,0,.3); font-weight: 600;
  transform: translateX(500px); transition: transform .4s ease;
  max-width: 400px;
}
.wel-toast.show { transform: translateX(0); }
.wel-toast.error { background: linear-gradient(135deg, #ef4444, #dc2626); }

/* ===================================================
 * v1.3.1 - HEADER & THEME COMPATIBILITY FIXES
 * =================================================== */

/* Force header rules với specificity cao để override theme */
#wel-landing-wrapper #header {
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999 !important;
    transition: all .3s ease;
    padding: 12px 0;
    /* Mặc định background trong suốt + subtle dark overlay để text trắng đọc được */
    background: linear-gradient(180deg, rgba(0,0,0,.25) 0%, rgba(0,0,0,0) 100%);
    backdrop-filter: blur(0);
    -webkit-backdrop-filter: blur(0);
}

/* Header khi scroll - nền trắng đặc */
#wel-landing-wrapper #header.header-scrolled {
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08) !important;
    padding: 8px 0;
}

/* Khi WP admin bar hiện ra - đẩy header xuống */
.admin-bar #wel-landing-wrapper #header {
    top: 32px !important;
}
@media (max-width: 782px) {
    .admin-bar #wel-landing-wrapper #header {
        top: 46px !important;
    }
}

/* Logo & Nav text màu trắng (default) */
#wel-landing-wrapper #header .logo-text,
#wel-landing-wrapper #header .nav-link {
    color: #ffffff !important;
    text-shadow: 0 1px 3px rgba(0,0,0,.2);
}

/* Khi scroll - đổi sang đen */
#wel-landing-wrapper #header.header-scrolled .logo-text,
#wel-landing-wrapper #header.header-scrolled .nav-link {
    color: #1a1a1a !important;
    text-shadow: none;
}
#wel-landing-wrapper #header.header-scrolled #menuToggle {
    color: #1a1a1a !important;
}

/* Hover state nav-link */
#wel-landing-wrapper #header .nav-link {
    position: relative;
    padding: 8px 4px;
}
#wel-landing-wrapper #header .nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #FFD60A, #FF6B35);
    transition: all .3s ease;
    transform: translateX(-50%);
}
#wel-landing-wrapper #header .nav-link:hover::after,
#wel-landing-wrapper #header .nav-link.active::after {
    width: 80%;
}

/* Mobile menu - fix toggle */
#wel-landing-wrapper .mobile-menu {
    display: none;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    transform: translateY(-10px);
    opacity: 0;
    transition: opacity .3s ease, transform .3s ease;
}
#wel-landing-wrapper .mobile-menu.open {
    display: block;
    transform: translateY(0);
    opacity: 1;
}

/* Mobile menu trên header chưa scroll - background dark */
#wel-landing-wrapper #header .mobile-menu {
    background: #ffffff !important;
    color: #1a1a1a !important;
}
#wel-landing-wrapper #header .mobile-menu a {
    color: #1a1a1a !important;
    text-shadow: none !important;
}

/* Menu toggle button */
#wel-landing-wrapper #menuToggle {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: #fff;
    transition: color .3s ease;
}

/* Hero section padding tăng để không bị header che */
#wel-landing-wrapper #wel-hero-section,
#wel-landing-wrapper section#home {
    padding-top: 90px !important;
}
.admin-bar #wel-landing-wrapper #wel-hero-section,
.admin-bar #wel-landing-wrapper section#home {
    padding-top: 122px !important;
}
@media (max-width: 782px) {
    .admin-bar #wel-landing-wrapper #wel-hero-section,
    .admin-bar #wel-landing-wrapper section#home {
        padding-top: 136px !important;
    }
}

/* ===================================================
 * THEME CONFLICT FIXES
 * =================================================== */

/* Ẩn header/footer của theme khi dùng template fullwidth */
.wel-fullwidth-body > header,
.wel-fullwidth-body > .site-header,
.wel-fullwidth-body > #masthead,
.wel-fullwidth-body > footer,
.wel-fullwidth-body > .site-footer,
.wel-fullwidth-body > #colophon {
    display: none !important;
}
.wel-fullwidth-body {
    margin: 0 !important;
    padding: 0 !important;
}
.wel-fullwidth-body .site-content,
.wel-fullwidth-body #content,
.wel-fullwidth-body #main {
    margin: 0 !important;
    padding: 0 !important;
    max-width: none !important;
    width: 100% !important;
}

/* Reset margins từ theme có thể đè */
#wel-landing-wrapper {
    margin: 0 !important;
    padding: 0 !important;
    width: 100% !important;
    max-width: none !important;
    line-height: 1.6;
    color: #333;
}
#wel-landing-wrapper * {
    box-sizing: border-box;
}

/* Reset list mặc định của theme */
#wel-landing-wrapper ul,
#wel-landing-wrapper ol {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* Reset link mặc định */
#wel-landing-wrapper a {
    text-decoration: none;
    color: inherit;
}

/* Reset button mặc định */
#wel-landing-wrapper button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* Reset img */
#wel-landing-wrapper img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Tab content visibility */
#wel-landing-wrapper .tab-content {
    display: none;
}
#wel-landing-wrapper .tab-content.active {
    display: grid;
}

/* FAQ accordion */
#wel-landing-wrapper .faq-item .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease, padding .4s ease;
}
#wel-landing-wrapper .faq-item.active .faq-answer {
    max-height: 500px;
    padding-top: 15px;
}

/* Particle animation keyframes (backup) */
@keyframes particleFloat {
    0% { transform: translateY(0) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100vh) rotate(360deg); opacity: 0; }
}

#wel-landing-wrapper .particle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    pointer-events: none;
}

/* Scroll to top button */
#wel-landing-wrapper #scrollTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #FF6B35, #FF006E);
    color: #fff;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 9998;
    box-shadow: 0 10px 30px rgba(255, 0, 110, .4);
    border: none;
}
#wel-landing-wrapper #scrollTop.flex {
    display: flex;
}

/* Success message animation */
#wel-landing-wrapper #successMsg {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity .4s ease, transform .4s ease;
    pointer-events: none;
}
#wel-landing-wrapper #successMsg.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* Responsive header - giảm padding mobile */
@media (max-width: 768px) {
    #wel-landing-wrapper #header { padding: 8px 0; }
    #wel-landing-wrapper #header .container { padding-left: 12px; padding-right: 12px; }
}

/* Loading state cho button */
#wel-landing-wrapper button:disabled,
#wel-landing-wrapper [disabled] {
    opacity: 0.7;
    cursor: not-allowed;
}