/* ==========================================================================
   BAM PORTFOLIO - CORE DESIGN SYSTEM & TOKENS
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=Prompt:ital,wght@0,200;0,300;0,400;0,500;0,600;0,700;1,300&display=swap');

:root {
  /* Color Palette - Cyber Neo Luxury */
  --bg-primary: #090d16;
  --bg-secondary: #0f172a;
  --bg-tertiary: #162035;
  --bg-card: rgba(18, 26, 45, 0.65);
  --bg-card-hover: rgba(28, 40, 68, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-strong: rgba(255, 255, 255, 0.07);
  
  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(99, 102, 241, 0.35);
  --border-active: rgba(255, 255, 255, 0.25);

  /* Typography */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #090d16;

  /* Accent Gradients & Venture Specific Colors */
  --accent-primary: #6366f1; /* Indigo */
  --accent-primary-rgb: 99, 102, 241;
  --accent-secondary: #ec4899; /* Hot Pink */
  --accent-cyan: #06b6d4; /* Mental Health Cyan */
  --accent-emerald: #10b981; /* Industrial/Eco Green */
  --accent-amber: #f59e0b; /* Rice Grain Amber */
  --accent-coral: #f43f5e; /* Vietnamese Culinary Coral */

  /* Gradients */
  --gradient-brand: linear-gradient(135deg, #6366f1 0%, #ec4899 50%, #06b6d4 100%);
  --gradient-industrial: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --gradient-grain: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  --gradient-photo: linear-gradient(135deg, #ec4899 0%, #a855f7 100%);
  --gradient-psych: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --gradient-culinary: linear-gradient(135deg, #f43f5e 0%, #fb923c 100%);
  --gradient-card-glow: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 70%);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.5);
  --shadow-neon-pink: 0 0 30px rgba(236, 72, 153, 0.3);
  --shadow-neon-cyan: 0 0 30px rgba(6, 182, 212, 0.3);
  --shadow-neon-emerald: 0 0 30px rgba(16, 185, 129, 0.3);

  /* Fonts */
  --font-main: 'Plus Jakarta Sans', 'Prompt', sans-serif;
  --font-heading: 'Outfit', 'Prompt', sans-serif;
  --font-thai: 'Prompt', sans-serif;

  /* Dimensions & Radius */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --max-width: 1280px;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.95);
  --bg-glass: rgba(0, 0, 0, 0.02);
  --bg-glass-strong: rgba(0, 0, 0, 0.05);
  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-glow: rgba(99, 102, 241, 0.25);
  --border-active: rgba(0, 0, 0, 0.18);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverse: #f8fafc;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.12);
  --gradient-card-glow: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
}

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

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-glow);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary);
}

/* Selection */
::selection {
  background: rgba(var(--accent-primary-rgb), 0.3);
  color: #fff;
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
}

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

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: transparent;
}

button {
  cursor: pointer;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 6rem 0;
  position: relative;
  z-index: 2;
}

@media (max-width: 768px) {
  .section {
    padding: 4rem 0;
  }
}

/* Glassmorphism Classes */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
}

.glass-panel:hover {
  border-color: var(--border-active);
  box-shadow: var(--shadow-lg);
}

/* Gradient Text */
.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.gradient-text-industrial {
  background: var(--gradient-industrial);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-photo {
  background: var(--gradient-photo);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-psych {
  background: var(--gradient-psych);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-culinary {
  background: var(--gradient-culinary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-grain {
  background: var(--gradient-grain);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Badges and Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  background: var(--bg-glass-strong);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.6; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-bounce);
  position: relative;
  overflow: hidden;
  user-select: none;
}

.btn-primary {
  background: var(--gradient-brand);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(236, 72, 153, 0.5);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-secondary {
  background: var(--bg-glass-strong);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.btn-icon {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-glass-strong);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  background: var(--accent-primary);
  color: #fff;
  border-color: transparent;
  transform: scale(1.08);
}

/* Section Header */
.section-header {
  text-align: center;
  max-width: 750px;
  margin: 0 auto 4rem auto;
}

.section-header .section-tag {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
  display: block;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

/* Background Canvas Layer */
#canvas-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
}

/* Ambient glow blurs */
.ambient-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.15;
}
.ambient-glow-1 {
  top: -150px;
  left: -100px;
  background: var(--accent-primary);
}
.ambient-glow-2 {
  bottom: 10%;
  right: -100px;
  background: var(--accent-secondary);
}
.ambient-glow-3 {
  top: 45%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--accent-cyan);
  opacity: 0.08;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  width: min(92%, 1120px);
  z-index: 100;
  padding: 0.6rem 1.25rem;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  top: 0.75rem;
  background: rgba(15, 23, 42, 0.9);
  border-color: var(--border-glow);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

[data-theme="light"] .navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
}

.brand-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 1rem;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.5);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  padding: 0.4rem 0.2rem;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.lang-toggle-btn, .theme-toggle-btn, .sound-toggle-btn {
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-full);
  background: var(--bg-glass-strong);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 0.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.lang-toggle-btn:hover, .theme-toggle-btn:hover, .sound-toggle-btn:hover {
  border-color: var(--border-glow);
  background: var(--bg-tertiary);
  transform: translateY(-1px);
}

.mobile-menu-btn {
  display: none;
}

@media (max-width: 860px) {
  .nav-links {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
}