@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700&family=Rajdhani:wght@600&family=Source+Sans+Pro:ital,wght@0,400;1,400&display=swap');

:root {
  --black: #000000;
  --white: #ffffff;
  --blue: #00aaff;
  --green: #00ff88;
  --red: #ff4444;
  --gray: #333;
  --lightgray: #999;
}

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

/* Sticky footer layout */
html, body {
  height: 100%;
  display: flex;
  flex-direction: column;
}

body {
  font-family: 'Source Sans Pro', sans-serif;
  background-color: var(--black);
  color: var(--white);
  line-height: 1.6;
}

main {
  flex: 1;
}

/* HEADINGS */

h1, h2, h3, h4, h5, h6 {
  font-family: 'Rajdhani', sans-serif;
  color: var(--white);
  margin: 1rem 0 0.5rem;
  text-transform: uppercase;
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; color: var(--blue); }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.4rem; }
h5 { font-size: 1.2rem; }
h6 { font-size: 1rem; color: var(--lightgray); }

/* TEXT */

p {
  margin-bottom: 1rem;
  font-size: 1rem;
  color: #ccc;
}

strong {
  font-weight: bold;
  color: var(--white);
}

em {
  font-style: italic;
  color: #ccc;
}

mark {
  background-color: var(--green);
  color: var(--black);
  padding: 0 4px;
  border-radius: 2px;
}

code {
  font-family: monospace;
  background-color: #111;
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--green);
}

/* LINKS */

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

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

/* BUTTONS */

.button {
  font-family: 'Orbitron', sans-serif;
  text-transform: uppercase;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s ease;
  display: inline-block;
}

.button-primary {
  background-color: var(--blue);
  color: var(--black);
}

.button-primary:hover {
  background-color: var(--green);
}

.button-secondary {
  background-color: #222;
  color: var(--white);
  border: 1px solid var(--blue);
}

.button-secondary:hover {
  background-color: var(--blue);
  color: var(--black);
}

.button-danger {
  background-color: var(--red);
  color: var(--white);
}

.button-outline {
  background: transparent;
  border: 1px solid var(--white);
  color: var(--white);
}

.button-outline:hover {
  background: var(--white);
  color: var(--black);
}

/* FORMS */

input, textarea, select {
  font-family: 'Source Sans Pro', sans-serif;
  padding: 0.6rem 1rem;
  border: 1px solid var(--gray);
  border-radius: 4px;
  background-color: #111;
  color: var(--white);
  width: 100%;
  margin-bottom: 1rem;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--blue);
  outline: none;
}

/* LISTS */

ul, ol {
  margin-left: 2rem;
  margin-bottom: 1rem;
}

ul li::marker {
  color: var(--blue);
}

ol li::marker {
  color: var(--green);
}

/* TABLES */

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

th, td {
  padding: 0.75rem;
  border: 1px solid var(--gray);
  text-align: left;
}

th {
  background-color: #111;
  color: var(--blue);
}

/* IMAGES */

img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 1rem;
  border: 1px solid #222;
}

/* ALERT BOXES */

.alert {
  padding: 1rem;
  border-radius: 5px;
  margin-bottom: 1rem;
  font-weight: bold;
}

.alert-info {
  background-color: #002233;
  color: var(--blue);
}

.alert-success {
  background-color: #002a22;
  color: var(--green);
}

.alert-error {
  background-color: #330000;
  color: var(--red);
}

/* MISC */

blockquote {
  border-left: 4px solid var(--blue);
  padding-left: 1rem;
  color: #aaa;
  margin-bottom: 1rem;
  font-style: italic;
}

.social-icon {
  display: inline-block;
  width: 48px;
  height: 48px;
  line-height: 48px;
  text-align: center;
  border-radius: 50%;
  background-color: #111;
  color: var(--blue);
  margin: 0 0.5rem;
  font-size: 1.5rem;
  transition: background 0.3s, color 0.3s;
  border: 2px solid var(--blue);
}

.social-icon:hover {
  background-color: var(--blue);
  color: var(--black);
}