/* ============================================
   VarSport Landing Page - Styles
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* === CSS Variables === */
:root {
  --primary-blue: #2563eb;
  --primary-dark: #0a1628;
  --primary-gradient: linear-gradient(135deg, #0b1a3e 0%, #1e3a8a 50%, #2563eb 100%);
  --accent-cyan: #38bdf8;
  --accent-purple: #a855f7;
  --text-white: #ffffff;
  --text-light: #cbd5e1;
  --text-dark: #1e293b;
  --text-muted: #64748b;
  --bg-light: #f1f5f9;
  --bg-white: #ffffff;
  --card-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --glow-blue: 0 0 40px rgba(37, 99, 235, 0.3);
}

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

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

body {
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  background: url('images/BG.png') center top / cover no-repeat fixed;
  background-color: var(--primary-dark);
}

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

a {
  text-decoration: none;
  color: inherit;
}

/* === Utilities === */
.container {
  max-width: 100%;
  margin: 0 auto;
  padding: 0;
}

/* === Animations === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-20px);
  }
}

@keyframes pulse-glow {

  0%,
  100% {
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.3);
  }

  50% {
    box-shadow: 0 0 40px rgba(37, 99, 235, 0.6);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% center;
  }

  100% {
    background-position: 200% center;
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === Header / Navigation === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  background: rgba(10, 22, 40, 0.95);
}


.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 40px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo img {
  height: 36px;
  width: auto;
}



.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  color: var(--text-light);
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.3s ease;
  position: relative;
  letter-spacing: 0.3px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-cyan);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--accent-cyan);
}

.nav-links a:hover::after {
  width: 100%;
}

.btn-contact {
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-cyan));
  color: white !important;
  padding: 10px 24px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.85rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

.btn-contact:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.6);
}

.btn-contact::after {
  display: none !important;
}

/* Mobile menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0 8px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: white;
  margin: 6px 0;
  transition: all 0.5s ease;
  border-radius: 2px;
}

/* === Hero Section === */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 70px 0 0;
  background: var(--primary-dark);
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-banner {
  width: 100%;
  animation: scaleIn 1s ease-out;
  overflow: hidden;
}

.hero-banner img {
  width: 100%;
  display: block;
}

.hero-tagline {
  width: 100%;
  background: var(--primary-dark);
  padding: 40px 24px;
  text-align: center;
}

.hero-tagline h2 {
  font-family: 'Inter', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.6;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-family: 'Inter', sans-serif;
  font-size: 3rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 16px;
  line-height: 1.2;
  background: linear-gradient(135deg, #ffffff, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-badges {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 10px 20px;
  border-radius: 50px;
  color: var(--text-light);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.badge:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

.badge-icon {
  font-size: 1.1rem;
}

/* === Dark Features Section === */
.dark-features {
  background: transparent;
  padding: 40px 0;
  position: relative;
}

.dark-features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(37, 99, 235, 0.05) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 30%, rgba(56, 189, 248, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.section-header {
  text-align: center;
  margin-bottom: 80px;
  position: relative;
  z-index: 1;
	height: auto;
	padding: 10px 0 0 0 
}

.section-header .section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent-cyan);
  margin-bottom: 16px;
  padding: 6px 20px;
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: 50px;
}

.section-header h2 {
  font-family: 'Inter', sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.dark-features .section-header h2 {
  color: var(--text-white);
}

.section-header p {
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

.dark-features .section-header p {
  color: var(--text-light);
}

/* Feature Row */
.feature-row {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
  padding: 0;
	border-top: none
}
.feature-row::before {
    display: none;
}

.feature-row:last-child {
  margin-bottom: 0;
}

.feature-row.reverse {
  flex-direction: row-reverse;
}

.feature-content {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: flex-start;
  gap: 0;
  padding-left: 100px;
  align-self: center;
}

.feature-row.reverse .feature-content {
  padding-left: 0;
  padding-right: 100px;
}

.feature-text {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.feature-image {
  flex: 1.3;
  min-width: 0;
}

.feature-number {
  flex-shrink: 0;
  font-family: 'Inter', sans-serif;
  font-size: 9rem;
  font-weight: 900;
  line-height: 1;
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
  opacity: 1;
  margin-top: 0;
  text-align: right;
  padding-right: 24px;
  align-self: center;
}

.feature-content h3 {
  font-family: 'Inter', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.dark-features .feature-content h3 {
  color: var(--text-white);
}

.feature-content p {
  font-size: 0.95rem;
  line-height: 1.8;
}

.dark-features .feature-content p {
  color: var(--text-light);
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.feature-tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.dark-features .feature-tag {
  background: rgba(37, 99, 235, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(37, 99, 235, 0.3);
}

.feature-image-wrapper {
  position: relative;
  overflow: hidden;
  transition: transform 0.5s ease;
}

.feature-image-wrapper:hover {
  transform: scale(1.02);
}

.dark-features .feature-image-wrapper {}

.feature-image-wrapper img {
  width: 100%;
  display: block;
}

.feature-image-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  pointer-events: none;
}

.dark-features .feature-image-wrapper::after {
  background: none;
}

/* === Transition / Divider === */
.section-divider {
  width: 100%;
  height: 120px;
  position: relative;
  overflow: hidden;
}

.section-divider.dark-to-light {
  background: transparent;
}

.section-divider.dark-to-light::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: -5%;
  width: 110%;
  height: 100%;
  background: transparent;
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
}

/* === Light Features (FREESOFT) Section === */
.light-features {
  background: transparent;
  padding: 80px 0 100px;
  position: relative;
}

.light-features .section-header .section-label {
  color: var(--accent-cyan);
  border-color: rgba(56, 189, 248, 0.3);
  background: rgba(56, 189, 248, 0.1);
}

.light-features .section-header h2 {
  color: var(--text-white);
}

.light-features .section-header p {
  color: var(--text-light);
}

.light-features .feature-number {
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
}

.light-features .feature-content h3 {
  color: var(--text-white);
}

.light-features .feature-content p {
  color: var(--text-light);
}

.light-features .feature-tag {
  background: rgba(37, 99, 235, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(37, 99, 235, 0.3);
}

.light-features .feature-image-wrapper {
  position: relative;
  overflow: visible;
}

.light-features .feature-image-wrapper::before {
  content: '';
  position: absolute;
  bottom: -20px;
  left: -10%;
  width: 120%;
  height: 80px;
  background: radial-gradient(ellipse at center, rgba(56, 189, 248, 0.45) 0%, rgba(37, 99, 235, 0.3) 30%, rgba(37, 99, 235, 0.1) 60%, transparent 80%);
  filter: blur(25px);
  z-index: -1;
  border-radius: 50%;
}

.light-features .feature-image-wrapper::after {
  background: none;
}

/* === Footer === */
.footer {
  background: var(--primary-dark);
  padding: 50px 0 30px;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary-blue), transparent);
}

.footer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.footer-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.footer-logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.1);
}

.homestech-logo-img {
  height: 36px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.1);
}

.footer-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 48px;
  width: 100%;
  max-width: 800px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-light);
  font-size: 0.88rem;
  line-height: 1.5;
}

.contact-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.contact-item a,
.contact-item span {
  color: var(--text-light);
  transition: color 0.3s ease;
}

.contact-item a:hover {
  color: var(--accent-cyan);
}

/* Toast Message */
.toast-message {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(37, 99, 235, 0.95);
  color: white;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transition: all 0.4s ease;
  z-index: 9999;
  pointer-events: none;
}

.toast-message.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* === CTA Section === */
.cta-section {
  background: var(--primary-gradient);
  padding: 80px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(56, 189, 248, 0.1), transparent 70%);
}

.cta-section h2 {
  font-family: 'Outfit', sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 16px;
  position: relative;
}

.cta-section p {
  color: var(--text-light);
  font-size: 1.1rem;
  margin-bottom: 32px;
  position: relative;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: white;
  color: var(--primary-blue);
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: white;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  transition: all 0.3s ease;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
  transform: translateY(-3px);
}

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--primary-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-blue);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* === Responsive === */
@media (max-width: 1024px) {
	.dark-features
	{
		padding: 20px 0 10px 0;
	}
  .feature-row {
	position: relative;
    padding-top: 20px;
    margin-top: 10px;
    gap: 40px;
  }
	.feature-row::before {
        display: block;
        content: "";
        position: absolute;
        top: 0;
        left: 50%; 
        transform: translateX(-50%); /* Kéo lại cho căn giữa chuẩn xác 100% */    
        width: 90%; /* CHỈNH CHIỀU NGANG TẠI ĐÂY (có thể đổi thành 50%, 200px...) */
        height: 2px; /* CHỈNH ĐỘ DÀY TẠI ĐÂY */
        background-color: white; /* Màu sắc của đường kẻ */
    }

  .hero h1 {
    font-size: 2.4rem;
  }

  .section-header h2 {
    font-size: 2rem;
  }

  .feature-number {
    font-size: 7rem;
  }

  .footer-info {
    grid-template-columns: 1fr;
	  padding: 16px;
    gap: 24px;
  }
}

@media (max-width: 768px) {

  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero {
    min-height: auto;
 
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .feature-row,
  .feature-row.reverse {
    flex-direction: column;
    gap: 30px;
    margin-bottom: 60px;
  }

  .feature-content {
    display: block;
    text-align: center;
    padding-left: 20px;
    padding-right: 20px;
  }

  .feature-row.reverse .feature-content {
    padding-left: 20px;
    padding-right: 20px;
  }

  .feature-number {
    font-size: 1.3rem;
    font-weight: 700;
    margin-top: 0;
    text-align: left;
    padding-right: 6px;
    line-height: 1.4;
    display: inline;
  }

  .feature-text {
    display: inline;
  }

  .feature-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
    display: inline;
  }

  .feature-content p {
    display: block;
    width: 100%;
    margin-top: 8px;
  }

  .section-header h2 {
    font-size: 1.5rem;
  }

  .section-header {
    margin-bottom: 50px;
  }

  .cta-section h2 {
    font-size: 1.8rem;
  }


}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.5rem;
  }

  .badge {
    font-size: 0.78rem;
    padding: 8px 14px;
  }

  .feature-number {
    font-size: 1.3rem;
  }

  .container {
    padding: 16px 0px;
  }
}


/* --- REGISTRATION SECTION --- */
.registration {
    position: relative;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('https://cameradalat.com/wp-content/uploads/2026/03/banner-web-var-1.1.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 60px 24px;
}


.registration-content {
    position: relative;
    z-index: 2;
    width: 100%;
    display: flex;
    justify-content: center;
}

.registration-card {
    background: #2064ED;
    border-radius: 16px;
    padding: 40px 36px;
    width: 100%;
    max-width: 440px;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    opacity: 0;
    animation: fadeInUp 0.7s ease 0.3s forwards;
}

.registration-title {
    text-align: center;
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 28px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.form-group {
    margin-bottom: 16px;
}

.form-row {
    display: flex;
    gap: 12px;
}

.form-select {
    flex: 3;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23333' stroke='%23333' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 16px;
    padding-right: 40px;
}

.form-select:invalid {
    color: #8a9ab5;
    font-style: italic;
}

.form-row #input-name {
    flex: 7;
}

.form-input {
    width: 100%;
    padding: 14px 18px;
    border: none;
    border-radius: 12px;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    color: #333;
    background: #FAF6EA;
    transition: var(--transition);
    outline: none;
}

.form-input::placeholder {
    color: #8a9ab5;
    font-weight: 400;
    font-style: italic;
}

.form-input:focus {
    border-color: var(--color-accent-blue);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.btn-submit {
    display: block;
    width: auto;
    margin: 24px auto 0;
    padding: 14px 48px;
    background-color: #ffffff;
    color: #000000;
    border: none;
    border-radius: 24px;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
}

.btn-submit:hover {
    background-color: #f0f0f0;
    color: #000000;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.btn-submit:active {
    transform: translateY(0);
}

/* Tablet - 768px */
@media (max-width: 768px) {
    .registration-card {
        padding: 32px 24px;
        max-width: 380px;
    }

 }

/* Mobile - 480px */
@media (max-width: 480px) {
    
    .registration {
        padding: 40px 16px;
    }

    .registration-card {
        padding: 28px 20px;
        border-radius: 12px;
    }

    .registration-title {
        font-size: 1.2rem;
        margin-bottom: 20px;
    }

    .form-input {
        padding: 12px 14px;
        font-size: 0.9rem;
    }

    .btn-submit {
        padding: 12px 36px;
        font-size: 0.85rem;
    }


}