/* ============================================================
   LITHIUM.IE — Global Styles
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');
@import 'variables.css';

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: var(--font-sans);
  border: none;
  background: none;
}

input, textarea, select {
  font-family: var(--font-sans);
  font-size: var(--text-base);
}

/* --- Typography utilities --- */
.text-gradient {
  background: var(--gradient-green-purple);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-muted { color: var(--color-text-muted); }
.text-green  { color: var(--color-green-glow); }
.text-purple { color: var(--color-purple-glow); }

/* --- Layout utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-8);
}

@media (max-width: 768px) {
  .container { padding: 0 var(--space-4); }
}

.section {
  padding: var(--section-pad);
}

/* --- Button components --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.625rem var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-btn-primary-bg);
  color: var(--color-btn-primary-text);
}
.btn-primary:hover {
  background: var(--color-green-glow);
  box-shadow: var(--glow-green);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--color-btn-secondary-bg);
  color: var(--color-btn-secondary-text);
  border: 1px solid var(--color-btn-secondary-border);
}
.btn-secondary:hover {
  background: var(--color-green-subtle);
  box-shadow: var(--glow-green);
  transform: translateY(-1px);
}

.btn-purple {
  background: var(--color-purple-mid);
  color: #ffffff;
}
.btn-purple:hover {
  background: var(--color-purple-glow);
  box-shadow: var(--glow-purple);
  transform: translateY(-1px);
}

/* --- Card component --- */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-base);
}
.card:hover {
  border-color: var(--color-border-green);
  background: var(--color-bg-card-hover);
  box-shadow: var(--shadow-card), var(--glow-green);
  transform: translateY(-4px);
}

/* --- Section headings --- */
.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-green-glow);
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--color-heading);
  line-height: 1.15;
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 540px;
  line-height: 1.7;
}

@media (max-width: 768px) {
  .section-title { font-size: var(--text-3xl); }
}

/* --- Divider --- */
.divider {
  height: 1px;
  background: var(--color-border);
  margin: 0;
}

/* --- Badge --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
}
.badge-green {
  background: var(--color-green-subtle);
  color: var(--color-green-glow);
  border: 1px solid var(--color-border-green);
}
.badge-purple {
  background: var(--color-purple-subtle);
  color: var(--color-purple-glow);
  border: 1px solid var(--color-border-purple);
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb {
  background: var(--color-green);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--color-green-mid); }

/* --- Selection --- */
::selection {
  background: rgba(61, 220, 132, 0.25);
  color: var(--color-heading);
}