/* ==========================================================================
   FIQIH SANTOSO — CYBER TECH PORTFOLIO
   Design System & Core Styles
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=Orbitron:wght@400;500;600;700;800;900&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

:root {
  /* Cyber Palette */
  --bg-primary: #05070d;
  --bg-secondary: #0a0f1d;
  --bg-tertiary: #10192e;
  --bg-card: rgba(10, 17, 34, 0.75);
  --bg-card-hover: rgba(16, 26, 52, 0.85);
  --bg-glass: rgba(8, 14, 28, 0.65);
  --bg-terminal: rgba(4, 8, 16, 0.92);

  /* Neon Accent Colors */
  --neon-cyan: #00f3ff;
  --neon-cyan-glow: rgba(0, 243, 255, 0.4);
  --neon-green: #00ff66;
  --neon-green-glow: rgba(0, 255, 102, 0.4);
  --neon-blue: #3b82f6;
  --neon-blue-glow: rgba(59, 130, 246, 0.4);
  --neon-purple: #b026ff;
  --neon-purple-glow: rgba(176, 38, 255, 0.4);
  --neon-pink: #ff007f;
  --neon-pink-glow: rgba(255, 0, 127, 0.4);
  --neon-amber: #ffaa00;
  --neon-amber-glow: rgba(255, 170, 0, 0.4);
  --neon-red: #ff3344;
  --neon-red-glow: rgba(255, 51, 68, 0.4);

  /* Text & Border Colors */
  --text-primary: #f0f6fc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-cyber: #00f3ff;
  --text-terminal: #00ff66;
  --border-cyber: rgba(0, 243, 255, 0.22);
  --border-cyber-active: rgba(0, 243, 255, 0.7);
  --border-dim: rgba(255, 255, 255, 0.08);

  /* Fonts */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Orbitron', 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', 'Space Grotesk', monospace;

  /* Shadows & Glows */
  --glow-cyan-sm: 0 0 10px rgba(0, 243, 255, 0.35);
  --glow-cyan-md: 0 0 20px rgba(0, 243, 255, 0.5), 0 0 40px rgba(0, 243, 255, 0.2);
  --glow-cyan-lg: 0 0 30px rgba(0, 243, 255, 0.6), 0 0 60px rgba(0, 243, 255, 0.3);
  --glow-green-sm: 0 0 10px rgba(0, 255, 102, 0.4);
  --glow-green-md: 0 0 20px rgba(0, 255, 102, 0.6), 0 0 40px rgba(0, 255, 102, 0.2);
  --glow-purple-sm: 0 0 10px rgba(176, 38, 255, 0.4);
  --glow-purple-md: 0 0 20px rgba(176, 38, 255, 0.6);

  /* Transitions & Radii */
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Layout */
  --container-max: 1240px;
  --nav-height: 76px;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  background-color: var(--bg-primary);
  font-size: 16px;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

::-webkit-scrollbar-track {
  background: var(--bg-primary);
  border-left: 1px solid rgba(0, 243, 255, 0.08);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--neon-cyan), var(--neon-blue));
  border-radius: 4px;
  box-shadow: var(--glow-cyan-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--neon-green), var(--neon-cyan));
}

::selection {
  background: rgba(0, 243, 255, 0.25);
  color: var(--neon-cyan);
  text-shadow: 0 0 8px rgba(0, 243, 255, 0.6);
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  line-height: 1.25;
}

a {
  color: var(--neon-cyan);
  text-decoration: none;
  transition: all var(--transition-fast);
}

a:hover {
  color: var(--neon-green);
  text-shadow: var(--glow-green-sm);
}

code, pre, .font-mono {
  font-family: var(--font-mono);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-wide {
  width: 100%;
  max-width: 1380px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Section Layout */
section {
  position: relative;
  padding: 6.5rem 0;
  z-index: 2;
}

@media (max-width: 768px) {
  section {
    padding: 4.5rem 0;
  }
}

/* Section Header Styling */
.section-header {
  margin-bottom: 3.5rem;
  text-align: center;
  position: relative;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--neon-cyan);
  background: rgba(0, 243, 255, 0.08);
  border: 1px solid rgba(0, 243, 255, 0.3);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  box-shadow: 0 0 12px rgba(0, 243, 255, 0.15);
}

.section-tag::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--neon-cyan);
  box-shadow: var(--glow-cyan-sm);
  animation: pulse-dot 2s infinite;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #ffffff 30%, var(--neon-cyan) 85%, var(--neon-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 30px rgba(0, 243, 255, 0.25);
}

.section-subtitle {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* Background Canvas & Ambient Overlays */
#cyber-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.75;
}

.cyber-grid-floor {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(to right, rgba(0, 243, 255, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 243, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  z-index: 1;
  pointer-events: none;
  mask-image: radial-gradient(circle at 50% 50%, black 40%, transparent 85%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, black 40%, transparent 85%);
}

.scanline-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(
    rgba(18, 16, 16, 0) 50%, 
    rgba(0, 0, 0, 0.25) 50%
  ), linear-gradient(
    90deg,
    rgba(255, 0, 0, 0.015),
    rgba(0, 255, 0, 0.01),
    rgba(0, 0, 255, 0.015)
  );
  background-size: 100% 3px, 6px 100%;
  z-index: 99;
  pointer-events: none;
  opacity: 0.65;
}

/* Ambient Radial Glows */
.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 1;
  opacity: 0.2;
}

.glow-top-left {
  top: -10%;
  left: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--neon-cyan), transparent 70%);
}

.glow-bottom-right {
  bottom: -10%;
  right: -5%;
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, var(--neon-purple), transparent 70%);
}

.glow-center {
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 750px;
  height: 750px;
  background: radial-gradient(circle, rgba(0, 255, 102, 0.15), transparent 70%);
}

/* Cyber Corner Accents for Cards */
.cyber-box {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-cyber);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-lg);
  transition: all var(--transition-smooth);
}

.cyber-box::before,
.cyber-box::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  pointer-events: none;
  transition: all var(--transition-smooth);
}

.cyber-box::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--neon-cyan);
  border-left: 2px solid var(--neon-cyan);
}

.cyber-box::after {
  bottom: -1px;
  right: -1px;
  border-bottom: 2px solid var(--neon-cyan);
  border-right: 2px solid var(--neon-cyan);
}

.cyber-box:hover {
  border-color: var(--border-cyber-active);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), var(--glow-cyan-sm);
  transform: translateY(-4px);
}

.cyber-box:hover::before,
.cyber-box:hover::after {
  width: 16px;
  height: 16px;
  border-color: var(--neon-green);
  box-shadow: var(--glow-green-sm);
}

/* Cyber Badges */
.badge-cyber {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  background: rgba(0, 243, 255, 0.1);
  color: var(--neon-cyan);
  border: 1px solid rgba(0, 243, 255, 0.25);
  letter-spacing: 0.03em;
}

.badge-cyber.badge-green {
  background: rgba(0, 255, 102, 0.1);
  color: var(--neon-green);
  border-color: rgba(0, 255, 102, 0.3);
}

.badge-cyber.badge-purple {
  background: rgba(176, 38, 255, 0.1);
  color: var(--neon-purple);
  border-color: rgba(176, 38, 255, 0.3);
}

.badge-cyber.badge-amber {
  background: rgba(255, 170, 0, 0.1);
  color: var(--neon-amber);
  border-color: rgba(255, 170, 0, 0.3);
}

/* Buttons */
.btn-cyber {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  user-select: none;
}

.btn-cyber-primary {
  background: linear-gradient(135deg, rgba(0, 243, 255, 0.2), rgba(0, 255, 102, 0.15));
  color: #ffffff;
  border-color: var(--neon-cyan);
  box-shadow: 0 0 16px rgba(0, 243, 255, 0.25), inset 0 0 12px rgba(0, 243, 255, 0.15);
}

.btn-cyber-primary:hover {
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-green));
  color: #000000;
  font-weight: 700;
  box-shadow: var(--glow-cyan-md), 0 0 35px rgba(0, 255, 102, 0.4);
  transform: translateY(-2px) scale(1.02);
}

.btn-cyber-outline {
  background: rgba(10, 17, 34, 0.6);
  color: var(--neon-cyan);
  border-color: rgba(0, 243, 255, 0.4);
  backdrop-filter: blur(10px);
}

.btn-cyber-outline:hover {
  background: rgba(0, 243, 255, 0.12);
  color: #ffffff;
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan-sm);
  transform: translateY(-2px);
}

.btn-cyber-green {
  background: rgba(0, 255, 102, 0.1);
  color: var(--neon-green);
  border-color: var(--neon-green);
  box-shadow: 0 0 14px rgba(0, 255, 102, 0.2);
}

.btn-cyber-green:hover {
  background: var(--neon-green);
  color: #000000;
  font-weight: 700;
  box-shadow: var(--glow-green-md);
  transform: translateY(-2px);
}

/* Glowing Pulse Dot */
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--neon-green);
  box-shadow: var(--glow-green-sm);
  display: inline-block;
  animation: pulse-dot 1.8s infinite;
}

@keyframes pulse-dot {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(0, 255, 102, 0.7);
  }
  70% {
    transform: scale(1.1);
    box-shadow: 0 0 0 8px rgba(0, 255, 102, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(0, 255, 102, 0);
  }
}