/* ============================================
   SudoSaudi — styles.css
   Cyberpunk / Futuristic AI Lab Theme
   ============================================ */

/* -------------------------------------------
   CSS CUSTOM PROPERTIES (THEME VARIABLES)
   ------------------------------------------- */
:root {
  /* Core Palette */
  --bg-primary: #000000;
  --bg-secondary: #0A0A0A;
  --bg-card: #0D0D0D;
  --bg-card-hover: #111111;

  /* Accent Colors */
  --neon-green: #00FF41;
  --neon-green-dim: #00cc33;
  --neon-green-glow: rgba(0, 255, 65, 0.15);
  --neon-green-glow-strong: rgba(0, 255, 65, 0.35);

  /* Text Colors */
  --text-primary: #E0E0E0;
  --text-secondary: #a8a8a8;
  --text-muted: #8a8a8a;
  --text-white: #FFFFFF;

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-green: rgba(0, 255, 65, 0.25);
  --border-green-strong: rgba(0, 255, 65, 0.5);

  /* Typography */
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-display: 'Orbitron', 'JetBrains Mono', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 5rem;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --max-width: 1200px;
  --header-height: 64px;
}

/* -------------------------------------------
   RESET & BASE STYLES
   ------------------------------------------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--neon-green-dim) var(--bg-primary);
}

html::-webkit-scrollbar {
  width: 6px;
}

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

html::-webkit-scrollbar-thumb {
  background: var(--neon-green-dim);
  border-radius: 3px;
}

body {
  font-family: var(--font-mono);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* -------------------------------------------
   ACCESSIBILITY UTILITIES
   ------------------------------------------- */

/* Visually hidden but available to screen readers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Visible keyboard-focus indicator across the site */
:focus-visible {
  outline: 2px solid var(--neon-green);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Skip link: hidden until focused, jumps to main content */
.skip-link {
  position: absolute;
  top: -100px;
  left: 8px;
  z-index: 1000;
  background: var(--neon-green);
  color: var(--bg-primary);
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 4px;
  box-shadow: 0 0 20px var(--neon-green-glow-strong);
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: 8px;
}

.skip-link:focus-visible {
  outline: 2px solid var(--text-white);
  outline-offset: 2px;
}

/* -------------------------------------------
   BACKGROUND CANVAS
   ------------------------------------------- */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.4;
}

/* -------------------------------------------
   HEADER / NAVIGATION
   ------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Brand / Logo */
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  transition: opacity var(--transition-base);
}

.brand:hover {
  opacity: 0.8;
}

.brand-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-white);
}

/* Navigation Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-secondary);
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid transparent;
  border-radius: 4px;
  transition: all var(--transition-base);
}

.nav-link:hover {
  color: var(--neon-green);
  border-color: var(--border-green);
  background: var(--neon-green-glow);
}

.nav-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Glowing bottom border */
.header-glow-border {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--neon-green-glow) 20%,
    var(--neon-green) 50%,
    var(--neon-green-glow) 80%,
    transparent 100%
  );
  opacity: 0.5;
  animation: borderPulse 4s ease-in-out infinite;
}

@keyframes borderPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.7; }
}

/* -------------------------------------------
   HERO SECTION
   ------------------------------------------- */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-height) + var(--space-xl)) var(--space-lg) var(--space-xl);
}

.hero-content {
  max-width: 800px;
  width: 100%;
  text-align: center;
}

/* Terminal Window */
.terminal-window {
  background: rgba(10, 10, 10, 0.9);
  border: 1px solid var(--border-green);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: var(--space-xl);
  box-shadow:
    0 0 20px var(--neon-green-glow),
    0 0 60px rgba(0, 255, 65, 0.05);
  text-align: left;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: var(--neon-green); }

.terminal-title {
  margin-left: auto;
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.terminal-body {
  padding: var(--space-lg);
}

.terminal-line {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.95rem;
  color: var(--neon-green);
  margin-bottom: var(--space-sm);
}

.terminal-line:last-child {
  margin-bottom: 0;
}

.prompt-char {
  color: var(--neon-green-dim);
  font-weight: 700;
}

.typed-text {
  color: var(--text-white);
}

/* Blinking Cursor */
.cursor {
  display: inline-block;
  color: var(--neon-green);
  font-weight: 700;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Hero Title */
.hero-title {
  font-family: var(--font-display);
  margin-bottom: var(--space-md);
}

.hero-title-line {
  display: block;
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.hero-title-accent {
  display: block;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  color: var(--text-white);
  letter-spacing: 0.05em;
  text-shadow: 0 0 30px var(--neon-green-glow);
}

.hero-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 300;
  letter-spacing: 0.08em;
}

/* Scroll Indicator */
.scroll-indicator {
  margin-top: var(--space-2xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  opacity: 0.4;
  animation: fadeInUp 1.5s ease 2s forwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 0.4;
    transform: translateY(0);
  }
}

.scroll-text {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}

.scroll-arrow {
  width: 1px;
  height: 30px;
  background: linear-gradient(to bottom, var(--neon-green-dim), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; height: 30px; }
  50% { opacity: 0.8; height: 40px; }
}

/* -------------------------------------------
   PROJECTS SECTION
   ------------------------------------------- */
.projects {
  position: relative;
  z-index: 1;
  padding: var(--space-2xl) var(--space-lg);
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--neon-green-dim);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
  opacity: 0.6;
}

.section-tag.close {
  display: block;
  text-align: center;
  margin-top: var(--space-2xl);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: 0.05em;
}

.section-line {
  width: 60px;
  height: 2px;
  background: var(--neon-green);
  margin: var(--space-md) auto 0;
  box-shadow: 0 0 10px var(--neon-green-glow);
}

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--space-lg);
}

/* -------------------------------------------
   VISION, MISSION & VALUES SECTION
   ------------------------------------------- */
.vision {
  position: relative;
  z-index: 1;
  padding: var(--space-2xl) var(--space-lg);
}

.vision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.vision-card {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  --tilt-x: 0deg;
  --tilt-y: 0deg;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.vision-card.is-visible:hover {
  transform: perspective(1000px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)) translateY(-4px);
}

.vision-card:hover .card-border-glow {
  opacity: 1;
}

.vision-card:hover .card-inner {
  border-color: var(--border-green-strong);
  background: var(--bg-card-hover);
}

/* Inline code / terminal command styling */
.terminal-cmd {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--neon-green);
  background: rgba(0, 255, 65, 0.08);
  border: 1px solid var(--border-green);
  border-radius: 3px;
  padding: 1px 6px;
  font-weight: 500;
}

.cmd-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.values-list p {
  margin-bottom: var(--space-sm);
  line-height: 1.7;
}

.values-list p:last-child {
  margin-bottom: 0;
}

.values-list code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--neon-green);
  font-weight: 500;
}

/* -------------------------------------------
   PROJECT CARD
   ------------------------------------------- */
.project-card {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  --tilt-x: 0deg;
  --tilt-y: 0deg;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.project-card.is-visible:hover {
  transform: perspective(1000px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)) translateY(-4px);
}

.project-card:hover .card-border-glow {
  opacity: 1;
}

.project-card:hover .card-inner {
  border-color: var(--border-green-strong);
  background: var(--bg-card-hover);
}

/* Outer glow on hover */
.card-border-glow {
  position: absolute;
  inset: -1px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--neon-green-glow), transparent, var(--neon-green-glow));
  opacity: 0;
  transition: opacity var(--transition-slow);
  z-index: -1;
}

.card-inner {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: var(--space-lg);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
}

/* Card Header */
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.card-icon {
  color: var(--neon-green);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border: 1px solid var(--border-green);
  border-radius: 8px;
  background: var(--neon-green-glow);
}

.card-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--border-green);
  border-radius: 20px;
  background: var(--neon-green-glow);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--neon-green);
  animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.badge-text {
  font-size: 0.65rem;
  color: var(--neon-green);
  letter-spacing: 0.05em;
  font-weight: 500;
  white-space: nowrap;
}

/* Card Body */
.card-body {
  flex: 1;
  margin-bottom: var(--space-lg);
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.card-description {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.tag {
  font-size: 0.7rem;
  color: var(--neon-green-dim);
  border: 1px solid var(--border-green);
  border-radius: 3px;
  padding: 2px 8px;
  letter-spacing: 0.05em;
  background: rgba(0, 255, 65, 0.03);
}

/* Card Footer */
.card-footer {
  margin-top: auto;
}

.card-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--bg-primary);
  background: var(--neon-green);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  letter-spacing: 0.05em;
}

.card-button:hover {
  background: var(--text-white);
  box-shadow: 0 0 20px var(--neon-green-glow-strong);
  transform: translateX(2px);
}

.button-arrow {
  transition: transform var(--transition-base);
}

.card-button:hover .button-arrow {
  transform: translate(2px, -2px);
}

/* Coming Soon Card */
.card-coming-soon {
  opacity: 0.5;
  pointer-events: none;
}

.card-coming-soon .card-inner {
  border-style: dashed;
  border-color: var(--text-muted);
  background: transparent;
}

.coming-soon-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 280px;
  gap: var(--space-md);
}

.coming-soon-icon {
  color: var(--text-muted);
  opacity: 0.4;
}

.coming-soon-text {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.coming-soon-sub {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.5;
}

/* -------------------------------------------
   FOOTER
   ------------------------------------------- */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-xl) var(--space-lg);
  margin-top: var(--space-2xl);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.footer-logo {
  height: 28px;
  width: auto;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-white);
}

.footer-tagline {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: color var(--transition-base);
}

.footer-links a:hover {
  color: var(--neon-green);
}

.footer-sep {
  color: var(--text-muted);
  font-size: 0.7rem;
}

.footer-copy {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* -------------------------------------------
   RESPONSIVE DESIGN
   ------------------------------------------- */

/* Tablets and smaller desktops */
@media (max-width: 768px) {
  :root {
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
  }

  .header-inner {
    padding: 0 var(--space-md);
  }

  .brand-name {
    font-size: 1rem;
  }

  .nav-link span {
    display: none;
  }

  .nav-link {
    padding: var(--space-xs);
  }

  .hero {
    padding: calc(var(--header-height) + var(--space-lg)) var(--space-md) var(--space-lg);
  }

  .terminal-body {
    padding: var(--space-md);
  }

  .terminal-line {
    font-size: 0.8rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .projects {
    padding: var(--space-xl) var(--space-md);
  }

  .vision-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .vision {
    padding: var(--space-xl) var(--space-md);
  }
}

/* Mobile phones */
@media (max-width: 480px) {
  .brand-name {
    font-size: 0.9rem;
  }

  .brand-logo {
    height: 32px;
  }

  .hero-title-accent {
    font-size: 2rem;
  }

  .card-inner {
    padding: var(--space-md);
  }

  .card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .card-badge {
    align-self: flex-start;
  }
}

/* Large screens */
@media (min-width: 1400px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .vision-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* -------------------------------------------
   FADE-IN ON SCROLL (class-based, no !important)
   Toggled by script.js when the element enters
   the viewport. Section headers use a slightly
   shorter offset and a faster transition.
   ------------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.section-header.fade-in {
  transform: translateY(15px);
  transition-duration: 0.5s;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Selection styling */
::selection {
  background: var(--neon-green);
  color: var(--bg-primary);
}