/* Font Definitions */
@font-face {
  font-family: 'TBJTerminalMono';
  src: url('fonts/TBJTerminalMono-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'TBJTerminalMono';
  src: url('fonts/TBJTerminalMono-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* CSS Variables */
:root {
  --bg-color: #000000;
  --text-color: #FFFFFF;
  --accent-color: #00FF88;
  --transition-duration: 0.3s;
  --char-highlight-duration: 0.15s;
}

/* Theme Definitions */
[data-theme="dark"] {
  --bg-color: #000000;
  --text-color: #FFFFFF;
  --accent-color: #00FF88;
}

[data-theme="light"] {
  --bg-color: #FFFFFF;
  --text-color: #000000;
  --accent-color: #FF3366;
}

[data-theme="blue"] {
  --bg-color: #007AFF;
  --text-color: #FFFFFF;
  --accent-color: #FFFF00;
}

[data-theme="orange"] {
  --bg-color: #FF9500;
  --text-color: #FFFFFF;
  --accent-color: #00FFFF;
}

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

html {
  font-size: 16px;
}

body {
  font-family: 'TBJTerminalMono', monospace;
  font-weight: 400;
  background-color: var(--bg-color);
  color: var(--text-color);
  min-height: 100vh;
  transition: background-color var(--transition-duration) ease,
              color var(--transition-duration) ease;
  line-height: 1.5;
}

/* Main Container - Tighter column width */
.container {
  width: 100%;
  max-width: 36rem;
  margin: 0 auto;
  padding: clamp(2rem, 8vw, 6rem) clamp(1.5rem, 5vw, 2rem);
  position: relative;
}

/* Logo Badge */
.logo-badge {
  position: absolute;
  top: clamp(1.5rem, 5vw, 3rem);
  right: clamp(1.5rem, 5vw, 3rem);
  width: clamp(5rem, 12vw, 8rem);
  height: clamp(5rem, 12vw, 8rem);
  cursor: pointer;
  transition: opacity var(--transition-duration) ease,
              transform var(--transition-duration) ease;
  z-index: 10;
  transform: rotate(15deg);
}

.logo-badge:hover {
  opacity: 0.8;
  transform: rotate(20deg);
}

.logo-badge img {
  width: 100%;
  height: 100%;
  display: block;
  filter: brightness(0) invert(1);
  transition: filter var(--transition-duration) ease;
}

[data-theme="light"] .logo-badge img {
  filter: brightness(0) invert(0);
}

/* Headline */
.headline {
  font-weight: 600;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  line-height: 1.2;
  margin-bottom: 2rem;
  max-width: 85%;
  min-height: 1.2em;
  padding-top: clamp(0rem, 10vw, 8rem);
}

/* Terminal Lines */
.terminal-lines {
  margin-bottom: 2rem;
}

.terminal-line {
  font-weight: 400;
  font-size: clamp(0.875rem, 2vw, 1rem);
  line-height: 1.3;
  min-height: 1.3em;
}

.terminal-line:first-child {
  margin-bottom: 1.5rem;
}

/* Navigation Links */
.nav-links {
  display: block;
  text-align: left;
  margin-bottom: 4rem;
  font-weight: 400;
  font-size: clamp(0.875rem, 2vw, 1rem);
  min-height: 1.5em;
}

.nav-links a {
  color: var(--text-color);
  text-decoration: none;
  transition: opacity var(--transition-duration) ease;
}

.nav-links a:hover {
  opacity: 0.7;
}

/* Currently Building Section */
.currently-building {
  font-weight: 400;
  font-size: clamp(0.875rem, 2vw, 1rem);
  margin-bottom: 2rem;
  min-height: 1.5em;
}

/* Typewriter cursor */
.typewriter-cursor {
  display: inline-block;
  width: 0.6em;
  height: 1.1em;
  background-color: var(--text-color);
  margin-left: 0.1em;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
  transition: background-color var(--transition-duration) ease;
}

/* Character highlight effect */
.char-highlight {
  color: var(--accent-color);
  transition: color var(--char-highlight-duration) ease-out;
}

.char-normal {
  color: var(--text-color);
  transition: color var(--char-highlight-duration) ease-out;
}

@keyframes blink {
  0%, 50% {
    opacity: 1;
  }
  51%, 100% {
    opacity: 0;
  }
}

/* Image Card */
.image-card {
  display: flex;
  justify-content: center;
  position: relative;
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.image-card.revealed {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.image-wrapper {
  position: relative;
  display: inline-block;
  max-width: 100%;
  border-radius: 10px;
  overflow: hidden;
}

.image-wrapper img {
  display: block;
  max-width: 100%;
  height: auto;
  transition: filter var(--transition-duration) ease;
}

/* Black and white for dark/light themes */
[data-theme="dark"] .image-wrapper img,
[data-theme="light"] .image-wrapper img {
  filter: grayscale(100%);
}

.image-wrapper:hover img {
  filter: grayscale(0%);
}

/* Color overlay for blue/orange themes */
.image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-color);
  mix-blend-mode: screen;
  pointer-events: none;
  transition: background-color var(--transition-duration) ease,
              opacity var(--transition-duration) ease;
  opacity: 0;
}

[data-theme="blue"] .image-overlay,
[data-theme="orange"] .image-overlay {
  opacity: 0.6;
}

.image-wrapper:hover .image-overlay {
  opacity: 0;
}

/* Mobile Adjustments */
@media (max-width: 640px) {
  .logo-badge {
    position: relative;
    top: 0;
    right: 0;
    margin-bottom: 1.5rem;
    margin-left: auto;
    display: block;
    width: 8rem;
    height: 8rem;
  }

  .headline {
    max-width: 100%;
    padding-top: 0;
    font-size: 2rem;
  }

  .terminal-line {
    font-size: 1.125rem;
  }

  .nav-links {
    font-size: 1.125rem;
  }

  .currently-building {
    font-size: 1.125rem;
  }
}

/* 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;
  }

  .image-card {
    opacity: 1;
    transform: none;
  }

  .typewriter-cursor {
    animation: none;
    opacity: 1;
  }
}