/* ==========================================================
   crescioli.com — Main Stylesheet
   ========================================================== */

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

:root {
  --color-bg: #0f0f0f;
  --color-surface: #1a1a1a;
  --color-border: #2a2a2a;
  --color-text: #e8e8e8;
  --color-text-muted: #888;
  --color-accent: #6ea8fe;
  --color-accent-hover: #9ec5fe;

  --font-sans: system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;

  --max-width: 860px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --radius: 8px;
}

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

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.7;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

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

h1, h2, h3 {
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: 1.2rem; }

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

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

main.container {
  flex: 1;
  padding-top: var(--spacing-sm);
  padding-bottom: var(--spacing-lg);
}

.section {
  margin-bottom: var(--spacing-lg);
}

/* --- Header --------------------------------------------- */
header {
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0;
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  background-color: green;
  border-radius: var(--radius);
}

.site-logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
  text-decoration: none;
}

.site-logo:hover {
  color: var(--color-accent);
  text-decoration: none;
}

nav {
  display: flex;
  gap: var(--spacing-md);
}

nav a {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  text-decoration: none;
  transition: color 0.15s;
}

nav a:hover,
nav a.active {
  color: var(--color-text);
  text-decoration: none;
}

/* --- Footer --------------------------------------------- */
footer {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* --- Hero ----------------------------------------------- */
.hero {
  padding: var(--spacing-sm) 0;
}

.hero h1 {
  margin-bottom: var(--spacing-sm);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
  flex-wrap: wrap;
}

/* --- Buttons -------------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.15s;
  text-decoration: none;
}

.btn:hover { opacity: 0.85; text-decoration: none; }

.btn-primary {
  background-color: var(--color-accent);
  color: #0f0f0f;
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

/* --- Cards ---------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.card h3 { margin-bottom: var(--spacing-xs); }

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: var(--spacing-sm);
}

.card-links {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-xs);
}

.tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text-muted);
}

/* --- About ---------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--spacing-md);
  align-items: start;
}

.about-image img {
  border-radius: var(--radius);
  object-fit: cover;
}

.skills-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
}

.skills-list li {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
}

/* --- Timeline ------------------------------------------- */
.timeline {
  margin-top: var(--spacing-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.timeline-item {
  border-left: 2px solid var(--color-border);
  padding-left: var(--spacing-md);
}

.timeline-date {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* --- Contact -------------------------------------------- */
.contact-grid {
  margin-top: var(--spacing-md);
}

.contact-links ul {
  list-style: none;
  margin-top: var(--spacing-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

/* --- 404 ------------------------------------------------ */
.not-found {
  text-align: center;
  padding: var(--spacing-lg) 0;
}

.not-found h1 {
  font-size: clamp(4rem, 15vw, 8rem);
  color: var(--color-text-muted);
}

/* --- Lead text ------------------------------------------ */
.lead {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

/* --- Responsive ----------------------------------------- */
@media (max-width: 600px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-image {
    order: -1;
  }

  nav {
    gap: var(--spacing-sm);
  }
}