/* --- Color Palette & Global Styles --- */
:root {
  /* Warm, natural palette inspired by sunlight on stone */
  --sand-stone: #eae5dc;       /* soft beige like city walls */
  --sky-wash: #b8cadd;         /* muted hazy blue */
  --evening-blue: #32485b;     /* dark accent with warmth */
  --earthy-green: #a6c2a5;     /* desaturated green accent */
  --earthy-brown: #6a584d;     /* warm shadow tone */

  --light-text: #f8f8f7;
  --dark-text: #2b2b2b;

  --page-bg: var(--sand-stone);
  --section-bg: rgba(232, 237, 241, 0.6);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--page-bg);
  color: var(--dark-text);
  line-height: 1.7;
  overflow-x: hidden;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem;
}

h1, h2 {
  margin-bottom: 1rem;
  color: var(--dark-text);
}

h1 {
  font-size: 3rem;
  text-align: center;
}

h2 {
  font-size: 2.5rem;
  font-weight: 400;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 3rem;
  text-align: center;
  color: var(--earthy-brown);
}

.section-title-mono {
  font-family: 'Fira Mono', 'Consolas', monospace;
  font-size: 2.8rem;
  letter-spacing: 2px;
  color: var(--earthy-brown);
}

/* --- Hero Section --- */
.hero-section {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../images/Rome-Italy.jpg') center center/cover no-repeat;
  z-index: 1;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    rgba(255, 250, 240, 0.2),
    rgba(50, 72, 91, 0.4)
  );
  z-index: 2;
}
.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  color: var(--light-text);
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: 4rem 2rem 2rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.hero-greeting {
  font-size: 1.2rem;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
  color: var(--light-text);
  font-weight: 500;
}
.hero-connect {
  color: var(--earthy-green);
  font-weight: bold;
  text-decoration: underline;
  transition: color 0.3s;
}
.hero-connect:hover {
  color: var(--sky-wash);
}
.hero-title {
  font-size: 5rem;
  font-weight: 700;
  margin: 0.5rem 0 1rem 0;
  letter-spacing: 0.02em;
  text-shadow: 2px 4px 16px rgba(0,0,0,0.25);
}
.hero-subtitle {
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 1.2rem;
  color: var(--light-text);
  text-shadow: 1px 2px 8px rgba(0,0,0,0.18);
}
.hero-bg-credit {
  font-size: 1.1rem;
  color: var(--earthy-green);
  margin-bottom: 2.5rem;
}
.hero-socials {
  display: flex;
  gap: 2.5rem;
  justify-content: center;
  margin-bottom: 2.5rem;
}
.hero-socials a {
  color: var(--light-text);
  font-size: 2.2rem;
  transition: color 0.3s, transform 0.3s;
}
.hero-socials a:hover {
  color: var(--earthy-green);
  transform: scale(1.15);
}
.hero-scroll {
  margin-top: 2.5rem;
  font-size: 2.5rem;
  color: var(--light-text);
  animation: bounce 1.5s infinite;
  cursor: pointer;
}
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(12px); }
}

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

/* --- Header & Navigation --- */
header {
  background-color: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  transition: background-color 0.3s ease;
}
header:hover {
  background-color: rgba(255, 255, 255, 0.7);
}
nav {
  display: flex;
  justify-content: center;
  gap: 2rem;
}
.nav-link {
  color: var(--evening-blue);
  font-weight: bold;
  font-size: 1.1rem;
}

/* --- Sections --- */
.content-section {
  padding: 5rem 0;
}
#about, #projects, #experience, #skills, #contact {
  background: linear-gradient(
    to bottom,
    rgba(255,255,255,0.4),
    rgba(240,235,225,0.7)
  );
  backdrop-filter: blur(2px);
}
#projects, #skills {
  background: linear-gradient(
    to bottom,
    rgba(184,202,221,0.3),
    rgba(234,229,220,0.6)
  );
}

/* --- About Section --- */
#about .container {
  text-align: center;
}
.profile-pic {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  border: 5px solid var(--earthy-green);
  margin-bottom: 1.5rem;
}
.bio {
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.1rem;
  color: #333;
}

/* --- Projects Section --- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}
.project-card {
  background: rgba(255, 255, 255, 0.4);
  border-radius: 8px;
  padding: 1.5rem;
  border: 1px solid rgba(106, 88, 77, 0.15);
  box-shadow: 0 4px 14px rgba(106, 88, 77, 0.15);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(106, 88, 77, 0.25);
}
.project-card h3 {
  color: var(--evening-blue);
  margin-top: 0;
  font-size: 1.4rem;
}
.project-card p {
  color: #444;
}
.project-date {
  font-size: 0.95rem;
  color: var(--earthy-brown);
  margin-top: -0.5rem;
  margin-bottom: 1rem;
}
.project-link {
  display: inline-block;
  margin-top: auto;
  font-weight: bold;
  color: var(--earthy-green);
}
.project-link:hover {
  text-decoration: underline;
}

/* --- Experience Section (Timeline) --- */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 2rem auto;
  padding-left: 3rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 10px;
  bottom: 10px;
  width: 4px;
  background: rgba(166, 194, 165, 0.3);
  border-radius: 2px;
}
.timeline-item {
  position: relative;
  margin-bottom: 3rem;
}
.timeline-dot {
  position: absolute;
  left: -32px;
  top: 5px;
  width: 18px;
  height: 18px;
  background: var(--sand-stone);
  border: 4px solid var(--earthy-green);
  border-radius: 50%;
  z-index: 2;
}
.timeline-card {
  background: rgba(255, 255, 255, 0.4);
  border-radius: 8px;
  padding: 1.5rem 2rem;
  border: 1px solid rgba(106, 88, 77, 0.15);
  box-shadow: none;
}
.timeline-header {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--evening-blue);
}
.timeline-meta {
  font-size: 1rem;
  color: #555;
  margin: 0.5rem 0 1rem 0;
}
.timeline-meta em {
  color: var(--earthy-brown);
}
.timeline-sep {
  margin: 0 0.5rem;
  color: #888;
}
.timeline-bullets {
  margin: 0;
  padding-left: 1.2rem;
  color: #333;
}

/* --- Contact Section --- */
#contact .container {
  text-align: center;
}
.contact-links {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}
.contact-links a {
  background-color: transparent;
  color: var(--evening-blue);
  padding: 0.8rem 1.5rem;
  border-radius: 5px;
  font-weight: bold;
  transition: background-color 0.3s ease;
  min-width: 120px;
}
.contact-links a:hover {
  background-color: rgba(166, 194, 165, 0.2);
  color: var(--evening-blue);
}

/* --- Footer --- */
footer {
  background-color: rgba(106, 88, 77, 0.9);
  color: var(--light-text);
  text-align: center;
  padding: 1.5rem 0;
}

/* --- Skills Section --- */
.skills-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}
.skill-category {
  background: rgba(255, 255, 255, 0.4);
  border-radius: 8px;
  padding: 1.5rem 2rem;
  box-shadow: 0 4px 14px rgba(106, 88, 77, 0.15);
}
.skill-category h3 {
  font-size: 1.3rem;
  color: var(--evening-blue);
  margin-top: 0;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--earthy-green);
  padding-bottom: 0.5rem;
}
.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}
.skill-badge {
  background: rgba(166, 194, 165, 0.15);
  color: var(--earthy-green);
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  font-size: 1rem;
  border: 1px solid rgba(166, 194, 165, 0.3);
  transition: all 0.3s ease;
}
.skill-badge:hover {
  background: var(--earthy-green);
  color: var(--page-bg);
  border-color: var(--earthy-green);
  transform: translateY(-2px);
}

/* --- Animation --- */
.animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.animate.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
  h2, .section-title-mono { font-size: 2rem; }
  .hero-title { font-size: 3.5rem; }
  .hero-subtitle { font-size: 1.5rem; }
  .timeline { padding-left: 1.5rem; }
  .timeline-dot { left: -22px; }
  .container { padding: 0 1rem; }
}