/* --- GLOBAL VARIABLES & RESET --- */
:root {
  --bg-color: #1a1a1a;
  --bg-secondary: #252525;
  --bg-accent: #2d2d2d;
  --text-main: #f0f0f0;
  --text-muted: #b0b0b0;
  --accent-color: #00ff41;   /* Terminal Green */
  --accent-hover: #00cc33;
  --alert-color: #ff6b6b;
  --font-heading: 'Courier Prime', 'Fira Code', monospace;
  --font-body: 'Inter', 'Roboto', sans-serif;
  --spacing-unit: 1rem;
  --container-width: 1200px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  font-size: 16px;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* --- LAYOUT UTILITIES --- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

.section-padding {
  padding: 80px 0;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

h1 {
  font-size: 3rem;
  color: var(--accent-color);
}

h2 {
  font-size: 2.2rem;
  border-bottom: 2px solid var(--accent-color);
  display: inline-block;
  padding-bottom: 10px;
  margin-bottom: 2rem;
}

p {
  margin-bottom: 1.5rem;
  color: var(--text-muted);
}

/* --- COMPONENTS: BUTTONS --- */
.btn {
  display: inline-block;
  padding: 12px 24px;
  font-family: var(--font-heading);
  font-weight: bold;
  text-transform: uppercase;
  border: 2px solid var(--accent-color);
  cursor: pointer;
  transition: all 0.3s ease;
  background: transparent;
  color: var(--accent-color);
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--bg-color);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-secondary:hover {
  background-color: rgba(0, 255, 65, 0.1);
}

/* --- SECTION: HERO --- */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(circle at center, var(--bg-secondary) 0%, var(--bg-color) 100%);
}

.hero-content h1 {
  margin-bottom: 20px;
}

.hero-buttons {
  margin-top: 30px;
  display: flex;
  gap: 20px;
  justify-content: center;
}

/* --- SECTION: ORIGIN STORY --- */
.origin-story {
  background-color: var(--bg-secondary);
}

.terminal-window {
  background-color: #000;
  border: 1px solid #333;
  border-radius: 5px;
  padding: 20px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  color: var(--accent-color);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.terminal-line {
  display: block;
  margin-bottom: 5px;
}

.terminal-line::before {
  content: "> ";
  color: var(--text-muted);
}

/* --- SECTION: TIMELINE --- */
.timeline-item {
  background-color: var(--bg-accent);
  padding: 30px;
  border-left: 4px solid var(--accent-color);
  margin-bottom: 20px;
}

.timeline-year {
  font-family: var(--font-heading);
  color: var(--accent-color);
  font-size: 1.2rem;
  font-weight: bold;
  margin-bottom: 10px;
  display: block;
}

/* --- SECTION: DIAGNOSIS --- */
.diagnosis-section {
  background-color: #1e2225;   /* Slight blue tint */
  border-top: 1px solid #333;
  border-bottom: 1px solid #333;
}

.highlight-box {
  background-color: rgba(255, 107, 107, 0.1);
  border: 1px solid var(--alert-color);
  padding: 20px;
  border-radius: 4px;
  margin-top: 30px;
}

.highlight-box h3 {
  color: var(--alert-color);
  margin-bottom: 10px;
}

/* --- SECTION: ABOUT GRID --- */
.feature-card {
  background-color: var(--bg-secondary);
  padding: 30px;
  text-align: center;
  border: 1px solid #333;
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-color);
}

.icon-placeholder {
  font-size: 2rem;
  margin-bottom: 15px;
  display: block;
}

/* --- SECTION: PROFESSIONAL --- */
.professional-section {
  background-color: var(--bg-secondary);
}

.project-link {
  display: inline-block;
  margin-top: 10px;
  font-weight: bold;
  text-decoration: underline;
}

/* --- FOOTER --- */
footer {
  background-color: #000;
  text-align: center;
  padding: 40px 0;
  border-top: 1px solid #333;
}

.footer-quote {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--text-main);
  margin-bottom: 20px;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }
}