/**
 * Main Styles for Saju Website
 * ��� ��t� Tx ��|
 */

/* ===================================
   Base Styles
   =================================== */

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
}

.container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section-container {
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: var(--section-padding-y) var(--section-padding-x);
}

/* ===================================
   Typography
   =================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
}

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); }

p {
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-relaxed);
}

/* ===================================
   Header Section
   =================================== */

#site-header {
  background: var(--color-bg-tertiary);
  border-bottom: 1px solid var(--color-border-light);
  position: sticky;
  top: 0;
  z-index: var(--z-50);
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95);
}

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

.logo-area {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* Optimized Mini Logo Compass */
.logo-compass {
  width: 40px;
  height: 40px;
  position: relative;
  animation: rotate-slow 120s linear infinite;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
  will-change: transform;
  transform: translateZ(0);
}

/* Logo Outer Ring */
.logo-luopan-outer {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 0.5px solid #8B6914;
  border-radius: 50%;
  background: 
    repeating-linear-gradient(
      0deg,
      #D4AF37 0px,
      #C9A026 0.5px,
      #D4AF37 1px
    ),
    conic-gradient(
      from 0deg,
      #C9A026 0deg,
      #D4AF37 90deg,
      #F4E4BC 180deg,
      #D4AF37 270deg,
      #C9A026 360deg
    );
  box-shadow: 
    0 1px 2px rgba(0, 0, 0, 0.3),
    inset 0 0.5px 0 rgba(255, 255, 255, 0.3),
    inset 0 -0.5px 0 rgba(0, 0, 0, 0.3);
}

/* Logo Middle Ring */
.logo-luopan-middle {
  position: absolute;
  width: 70%;
  height: 70%;
  top: 15%;
  left: 15%;
  border: 0.5px solid #8B6914;
  border-radius: 50%;
  background: 
    radial-gradient(circle at 50% 50%, 
      #F4E4BC 0%, 
      #D4AF37 50%, 
      #B8860B 100%);
  box-shadow: 
    inset 0 0.5px 0 rgba(255, 248, 220, 0.4),
    inset 0 -0.5px 0 rgba(0, 0, 0, 0.4);
}

/* Logo Inner Ring */
.logo-luopan-inner {
  position: absolute;
  width: 45%;
  height: 45%;
  top: 27.5%;
  left: 27.5%;
  border: 0.5px solid #8B6914;
  border-radius: 50%;
  background: 
    radial-gradient(circle at 50% 50%, 
      #F8D985 0%, 
      #D4AF37 50%, 
      #B8860B 100%);
}

/* Logo Taiji Center */
.logo-compass-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  z-index: 3;
}

.logo-compass-needle {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  position: relative;
  animation: rotate-taiji 4s linear infinite;
}

.logo-needle-pointer {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  background: linear-gradient(90deg, 
    #0a0a0a 50%,
    #fefefe 50%);
  border: 0.5px solid #B8860B;
  box-shadow: 0 0 4px rgba(255, 215, 0, 0.2);
}

/* Logo Yin Half */
.logo-needle-pointer::before {
  content: '';
  position: absolute;
  width: 50%;
  height: 50%;
  background: #0a0a0a;
  border-radius: 50%;
  top: 0;
  left: 25%;
}

/* Logo Yang Half */
.logo-needle-pointer::after {
  content: '';
  position: absolute;
  width: 50%;
  height: 50%;
  background: #fefefe;
  border-radius: 50%;
  bottom: 0;
  left: 25%;
}

/* Logo Yin dot */
.logo-center-dot {
  position: absolute;
  width: 2px;
  height: 2px;
  background: #fefefe;
  border-radius: 50%;
  top: 25%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
}

/* Logo Yang dot */
.logo-center-dot::after {
  content: '';
  position: absolute;
  width: 2px;
  height: 2px;
  background: #0a0a0a;
  border-radius: 50%;
  top: 4px;
  left: 0;
}

/* Logo Mountains Text */
.logo-mountain {
  position: absolute;
  width: 8px;
  height: 8px;
  text-align: center;
  line-height: 8px;
  left: 50%;
  top: 50%;
  transform-origin: center;
  font-family: 'Nanum Myeongjo', serif;
  font-size: 5px;
  font-weight: 700;
  color: #1a0e05;
  text-shadow: 0 0.5px 0 rgba(255, 248, 220, 0.4);
}

/* Logo Trigrams */
.logo-trigram {
  position: absolute;
  width: 10px;
  height: 10px;
  font-size: 7px;
  text-align: center;
  line-height: 10px;
  font-weight: 900;
  left: 50%;
  top: 50%;
  transform-origin: center;
  color: #0a0503;
  text-shadow: 0 0.5px 0 rgba(255, 248, 220, 0.5);
}

.site-title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
}

.main-nav {
  display: flex;
  gap: var(--spacing-xl);
}

.main-nav a {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  transition: color var(--duration-normal) var(--ease-in-out);
  position: relative;
}

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

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--duration-normal) var(--ease-in-out);
}

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

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

#hero-section {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.ink-wash-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 80%, rgba(107, 140, 174, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(200, 168, 130, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(123, 158, 137, 0.1) 0%, transparent 50%);
  animation: floatPattern 20s ease-in-out infinite;
}

@keyframes floatPattern {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-20px, -20px) scale(1.05); }
  66% { transform: translate(20px, -10px) scale(0.95); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--spacing-2xl);
}

.hero-title {
  margin-bottom: var(--spacing-xl);
}

.brush-stroke {
  display: block;
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-wood) 0%, var(--color-fire) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  display: block;
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  font-weight: var(--font-normal);
}

.hero-decoration {
  margin: var(--spacing-2xl) 0;
}

/* Optimized Luopan Compass */
.bagua-compass {
  width: 320px;
  height: 320px;
  margin: 0 auto;
  position: relative;
  animation: rotate-slow 90s linear infinite;
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.2));
  will-change: transform;
  transform: translateZ(0); /* GPU acceleration */
}

/* Optimized Outer Ring */
.luopan-outer {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 1px solid #8B6914;
  border-radius: 50%;
  background: 
    linear-gradient(135deg, 
      #D4AF37 0%, 
      #F4E4BC 25%,
      #C9A026 50%, 
      #F4E4BC 75%,
      #D4AF37 100%);
  box-shadow: 
    0 2px 8px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    inset 0 -1px 0 rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
}

/* Simple shine effect */
.luopan-outer::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: linear-gradient(
    105deg,
    transparent 45%,
    rgba(255, 255, 255, 0.1) 50%,
    transparent 55%
  );
  animation: subtle-shine 12s ease-in-out infinite;
  will-change: transform;
}

/* 24 Mountains - Razor Sharp Engraving */
.mountains-24 {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.mountain {
  position: absolute;
  width: 18px;
  height: 18px;
  text-align: center;
  line-height: 18px;
  left: 50%;
  top: 50%;
  transform-origin: center;
  font-family: 'Nanum Myeongjo', serif;
  font-size: 11px;
  font-weight: 700;
  color: #1a0e05;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.5);
  -webkit-font-smoothing: antialiased;
}

/* Optimized Middle Ring */
.luopan-middle {
  position: absolute;
  width: 72%;
  height: 72%;
  top: 14%;
  left: 14%;
  border: 1px solid #8B6914;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, 
    #F4E4BC 0%, 
    #D4AF37 40%, 
    #B8860B 100%);
  box-shadow: 
    0 1px 4px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 248, 220, 0.5);
}

.trigram-ring {
  position: absolute;
  width: 100%;
  height: 100%;
}

.trigram {
  position: absolute;
  width: 28px;
  height: 28px;
  font-size: 20px;
  text-align: center;
  line-height: 28px;
  font-weight: 900;
  left: 50%;
  top: 50%;
  transform-origin: center;
  color: #0a0503;
  /* Ultra sharp engraving */
  text-shadow: 
    0 0.5px 0 rgba(255, 248, 220, 0.7),
    0 -0.5px 0 rgba(0, 0, 0, 0.8),
    0.5px 0 0 rgba(255, 248, 220, 0.4),
    -0.5px 0 0 rgba(0, 0, 0, 0.6),
    0 0 1px rgba(0, 0, 0, 0.9),
    inset 0 1px 2px rgba(0, 0, 0, 0.3);
  -webkit-font-smoothing: antialiased;
}

/* Optimized Inner Ring */
.luopan-inner {
  position: absolute;
  width: 46%;
  height: 46%;
  top: 27%;
  left: 27%;
  border: 1px solid #8B6914;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, 
    #F8D985 0%, 
    #D4AF37 50%, 
    #B8860B 100%);
  box-shadow: 
    0 1px 2px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 248, 220, 0.6);
}

.branches-12 {
  position: absolute;
  width: 100%;
  height: 100%;
}

.branch {
  position: absolute;
  width: 20px;
  height: 20px;
  font-size: 12px;
  text-align: center;
  line-height: 20px;
  font-weight: 800;
  font-family: 'Nanum Myeongjo', serif;
  left: 50%;
  top: 50%;
  transform-origin: center;
  color: #0a0503;
  /* Precision engraving */
  text-shadow: 
    0 0.5px 0 rgba(255, 248, 220, 0.8),
    0 -0.5px 0 rgba(0, 0, 0, 0.9),
    0 0 0.5px rgba(0, 0, 0, 1);
  -webkit-font-smoothing: antialiased;
}

/* Central Taiji - Obsidian & Mother of Pearl */
.compass-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 76px;
  height: 76px;
  z-index: 3;
  filter: drop-shadow(0 0 12px rgba(255, 215, 0, 0.3));
}

/* Taiji Container with Mystical Glow */
.compass-needle {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  position: relative;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.2) 0%, transparent 70%);
  animation: rotate-taiji 4s linear infinite;
  will-change: transform;
}

/* Removed motion blur layers for performance */

/* Main Taiji - Luxury Materials */
.needle-pointer {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  background: linear-gradient(90deg, 
    #0a0a0a 50%,  /* Polished obsidian */
    #fefefe 50%); /* Mother of pearl */
  border: 1px solid #B8860B;
  box-shadow: 
    /* Soft inner glow */
    0 0 20px rgba(255, 215, 0, 0.2),
    /* Depth */
    inset 0 2px 4px rgba(0, 0, 0, 0.3),
    inset 0 -2px 4px rgba(255, 255, 255, 0.2);
}

/* Yin (Obsidian) Half */
.needle-pointer::before {
  content: '';
  position: absolute;
  width: 50%;
  height: 50%;
  background: 
    radial-gradient(circle at 50% 50%, 
      #1a1a1a 0%, 
      #0a0a0a 50%, 
      #000000 100%);
  border-radius: 50%;
  top: 0;
  left: 25%;
  border: none;
  box-shadow: 
    inset 0 1px 2px rgba(255, 255, 255, 0.1),
    inset 0 -1px 2px rgba(0, 0, 0, 0.5);
}

/* Yang (Mother of Pearl) Half */
.needle-pointer::after {
  content: '';
  position: absolute;
  width: 50%;
  height: 50%;
  background: 
    radial-gradient(circle at 30% 30%, 
      rgba(255, 251, 247, 1) 0%,
      rgba(248, 245, 242, 1) 30%,
      rgba(255, 253, 250, 1) 60%,
      rgba(245, 242, 238, 1) 100%),
    linear-gradient(135deg,
      rgba(255, 255, 255, 0.9),
      rgba(252, 251, 250, 0.7));
  border-radius: 50%;
  bottom: 0;
  left: 25%;
  border: none;
  box-shadow: 
    inset 0 1px 3px rgba(255, 255, 255, 0.9),
    inset 0 -1px 2px rgba(0, 0, 0, 0.1);
}

/* Yin dot (Pearl white in obsidian) */
.center-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  background: 
    radial-gradient(circle at 40% 40%,
      #ffffff 0%,
      #fdfcfb 50%,
      #f5f2ee 100%);
  border-radius: 50%;
  top: 25%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  box-shadow: 
    0 1px 2px rgba(0, 0, 0, 0.2),
    0 0 8px rgba(255, 255, 255, 0.3),
    inset 0 1px 1px rgba(255, 255, 255, 0.8);
}

/* Yang dot (Obsidian in pearl) */
.center-dot::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  background: 
    radial-gradient(circle at 60% 60%,
      #0a0a0a 0%,
      #050505 50%,
      #000000 100%);
  border-radius: 50%;
  top: 28px;
  left: 0;
  box-shadow: 
    0 1px 2px rgba(0, 0, 0, 0.4),
    inset 0 1px 1px rgba(255, 255, 255, 0.05);
}

/* Decorative Circles */
.decorative-circles {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
  display: none; /* Remove distracting rotating circles */
}

/* Animations */
@keyframes rotate-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes rotate-counter {
  from { transform: rotate(360deg); }
  to { transform: rotate(0deg); }
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Subtle polish sweep */
@keyframes subtle-shine {
  0%, 100% { transform: translateX(-100%); }
  50% { transform: translateX(100%); }
}

/* Taiji rotation with mystical effect */
@keyframes rotate-taiji {
  from { 
    transform: rotate(0deg);
    filter: brightness(1) contrast(1);
  }
  25% {
    filter: brightness(1.1) contrast(1.05);
  }
  50% {
    filter: brightness(1.2) contrast(1.1);
  }
  75% {
    filter: brightness(1.1) contrast(1.05);
  }
  to { 
    transform: rotate(360deg);
    filter: brightness(1) contrast(1);
  }
}

/* Removed unused animations for performance */

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--button-padding-y) var(--button-padding-x);
  background: var(--color-accent);
  color: var(--color-text-inverse);
  border-radius: var(--button-radius);
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  transition: all var(--duration-normal) var(--ease-in-out);
  box-shadow: var(--shadow-md);
}

.cta-button:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.arrow-icon {
  width: 20px;
  height: 20px;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}