/* ===================================
   Thai Massage Spa - Design System
   =================================== */

/* CSS Variables */
:root {
  /* Colors - Pink, Purple, Gold Theme */
  --primary-pink: #FF69B4;
  --light-pink: #FFB6C1;
  --soft-pink: #FFC0CB;
  --primary-purple: #9B59B6;
  --deep-purple: #8B5CF6;
  --light-purple: #C39BD3;
  --primary-gold: #FFD700;
  --warm-gold: #F59E0B;
  --rose-gold: #E6B8A2;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #FF69B4 0%, #9B59B6 50%, #FFD700 100%);
  --gradient-hero: linear-gradient(135deg, rgba(255, 105, 180, 0.9) 0%, rgba(155, 89, 182, 0.9) 50%, rgba(255, 215, 0, 0.8) 100%);
  --gradient-card: linear-gradient(135deg, rgba(255, 182, 193, 0.1) 0%, rgba(195, 155, 211, 0.1) 100%);

  /* Neutral Colors */
  --white: #FFFFFF;
  --off-white: #F8F9FA;
  --light-gray: #E9ECEF;
  --gray: #6C757D;
  --dark-gray: #343A40;
  --black: #1A1A1A;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Typography */
  --font-primary: 'Sarabun', sans-serif;
  --font-heading: 'Prompt', sans-serif;

  /* Font Sizes */
  --text-xs: 0.875rem;
  --text-sm: 1rem;
  --text-md: 1.125rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 2.5rem;
  --text-4xl: 3rem;
  --text-5xl: 4rem;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 20px rgba(255, 105, 180, 0.3);

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ===================================
   Reset & Base Styles
   =================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-primary);
  color: var(--dark-gray);
  line-height: 1.7;
  background-color: var(--off-white);
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  color: var(--black);
}

h1 {
  font-size: var(--text-5xl);
}

h2 {
  font-size: var(--text-4xl);
}

h3 {
  font-size: var(--text-3xl);
}

h4 {
  font-size: var(--text-2xl);
}

h5 {
  font-size: var(--text-xl);
}

h6 {
  font-size: var(--text-lg);
}

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

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

ul {
  list-style: none;
}

/* ===================================
   Utility Classes
   =================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  position: relative;
}

.section-title h2 {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  margin: var(--spacing-md) auto 0;
  border-radius: var(--radius-full);
}

.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--text-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  text-align: center;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.btn-outline {
  background: transparent;
  color: var(--primary-purple);
  border: 2px solid var(--primary-purple);
}

.btn-outline:hover {
  background: var(--primary-purple);
  color: var(--white);
  transform: translateY(-3px);
}

.glass-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: var(--transition-normal);
}

.glass-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

/* ===================================
   Navigation
   =================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-lg);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  display: flex;
  align-items: center;
  transition: var(--transition-normal);
}

.logo img {
  height: 80px;
  width: auto;
  transition: var(--transition-normal);
}

.logo:hover img {
  transform: scale(1.05);
  filter: brightness(1.1);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-xl);
  align-items: center;
}

.nav-link {
  font-weight: 500;
  color: var(--dark-gray);
  position: relative;
  padding: var(--spacing-xs) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--primary-purple);
  border-radius: var(--radius-full);
  transition: var(--transition-normal);
}

/* ===================================
   Hero Section
   =================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-hero);
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('../images/hero-bg.jpg') center/cover no-repeat;
  opacity: 0.3;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--white);
  max-width: 900px;
  padding: var(--spacing-2xl);
}

.hero h1 {
  color: var(--white);
  font-size: clamp(2.5rem, 6vw, 5rem);
  margin-bottom: var(--spacing-lg);
  text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1s ease;
}

.hero p {
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-xl);
  text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1s ease 0.2s backwards;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease 0.4s backwards;
}

/* ===================================
   About Section
   =================================== */

.about {
  background: var(--white);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.about-text h2 {
  margin-bottom: var(--spacing-lg);
}

.about-text p {
  font-size: var(--text-md);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  position: relative;
}

.about-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-hero);
  opacity: 0.2;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.about-image:hover img {
  transform: scale(1.05);
}

/* ===================================
   Types Section
   =================================== */

.types {
  background: linear-gradient(135deg, rgba(255, 182, 193, 0.1) 0%, rgba(195, 155, 211, 0.1) 100%);
}

.types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.type-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
  border: 2px solid transparent;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.type-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: var(--gradient-primary);
}

.type-card:hover {
  transform: translateY(-10px);
  border-color: var(--primary-pink);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.type-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-3xl);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-md);
}

.type-card h3 {
  margin-bottom: var(--spacing-md);
  color: var(--primary-purple);
}

.type-card p {
  line-height: 1.8;
  color: var(--gray);
}

/* ===================================
   Features Section
   =================================== */

.features {
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.feature-item {
  text-align: center;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  transition: var(--transition-normal);
}

.feature-item:hover {
  background: var(--gradient-card);
  transform: translateY(-5px);
}

.feature-icon {
  width: 100px;
  height: 100px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-4xl);
  margin: 0 auto var(--spacing-lg);
  box-shadow: var(--shadow-lg);
}

.feature-item h4 {
  margin-bottom: var(--spacing-sm);
  color: var(--primary-purple);
}

.feature-item p {
  color: var(--gray);
  line-height: 1.7;
}

/* ===================================
   Benefits Section
   =================================== */

.benefits {
  background: linear-gradient(135deg, rgba(155, 89, 182, 0.05) 0%, rgba(255, 215, 0, 0.05) 100%);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.benefit-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-lg);
  transition: var(--transition-normal);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.benefit-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.benefit-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.benefit-number {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.benefit-card h3 {
  color: var(--primary-purple);
}

.benefit-card ul {
  list-style: none;
  padding: 0;
}

.benefit-card li {
  padding: var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
  position: relative;
  line-height: 1.7;
}

.benefit-card li::before {
  content: '✨';
  position: absolute;
  left: 0;
  top: var(--spacing-sm);
}

/* ===================================
   Precautions Section
   =================================== */

.precautions {
  background: var(--white);
}

.precautions-content {
  max-width: 900px;
  margin: 0 auto;
}

.warning-box {
  background: linear-gradient(135deg, rgba(255, 105, 180, 0.1) 0%, rgba(255, 215, 0, 0.1) 100%);
  border-left: 5px solid var(--primary-gold);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.warning-box h4 {
  color: var(--primary-purple);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.warning-box h4::before {
  content: '⚠️';
  font-size: var(--text-xl);
}

.warning-box ul {
  list-style: none;
}

.warning-box li {
  padding: var(--spacing-sm) 0;
  padding-left: var(--spacing-xl);
  position: relative;
  line-height: 1.8;
}

.warning-box li::before {
  content: '•';
  position: absolute;
  left: var(--spacing-md);
  color: var(--primary-gold);
  font-size: var(--text-xl);
  font-weight: 700;
}

/* ===================================
   Contact Section
   =================================== */

.contact {
  background: var(--gradient-hero);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  animation: float 6s ease-in-out infinite;
}

.contact-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.contact h2 {
  color: var(--white);
  margin-bottom: var(--spacing-lg);
}

.contact p {
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
}

.contact-info {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2xl);
  flex-wrap: wrap;
  margin-top: var(--spacing-2xl);
}

.contact-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  margin-bottom: var(--spacing-sm);
}

.contact-item h4 {
  color: var(--white);
  font-size: var(--text-md);
}

.contact-item p {
  font-size: var(--text-lg);
  font-weight: 600;
}

/* ===================================
   Footer
   =================================== */

.footer {
  background: var(--black);
  color: var(--light-gray);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.footer p {
  margin-bottom: var(--spacing-sm);
}

.footer a {
  color: var(--primary-pink);
  font-weight: 600;
}

.footer a:hover {
  color: var(--primary-gold);
}

/* ===================================
   Animations
   =================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

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

@keyframes float {

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

  50% {
    transform: translateY(-20px) rotate(5deg);
  }
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.05);
  }
}

.fade-in {
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  animation: slideInLeft 0.8s ease forwards;
}

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

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  animation: slideInRight 0.8s ease forwards;
}

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

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 768px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.75rem;
    --spacing-3xl: 3rem;
  }

  .logo img {
    height: 65px;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--spacing-2xl);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  .about-content {
    grid-template-columns: 1fr;
  }

  .about-image {
    order: -1;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }

  .contact-info {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
}

@media (max-width: 480px) {

  .types-grid,
  .features-grid,
  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: var(--spacing-2xl) 0;
  }
}