/* ===== IMPORT FONT ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ===== ROOT VARIABLES (COLOR SYSTEM) ===== */
:root {
  --bg-color: #0f172a;          /* dark navy background */
  --primary-color: #1e293b;     /* section background */
  --accent-color: #3b82f6;      /* blue accent */
  --accent-hover: #2563eb;

  --text-color: #e5e7eb;        /* light text */
  --text-muted: #9ca3af;

  --border-color: #334155;
}

/* ===== GLOBAL RESET ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ===== BODY ===== */
body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

/* ===== SEO ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem;
}

/* ===== HEADINGS ===== */
h1, h2, h3 {
  font-weight: 600;
  letter-spacing: -0.5px;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.8rem;
  margin-bottom: 0.75rem;
  border-bottom: 2px solid var(--accent-color);
  display: inline-block;
  padding-bottom: 0.25rem;
}

h3 {
  margin-top: 1.5rem;
}

p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* ===== NAVBAR ===== */
html {
  scroll-behavior: smooth;
}

nav {
  background-color: var(--primary-color);
  border-bottom: 1px solid var(--border-color);
}

nav ul {
  display: flex;
  justify-content: center;
  list-style: none;
  gap: 2rem;
  padding: 1rem;
}

nav a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: 0.2s;
}

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

/* ===== SECTIONS ===== */
section {
  margin-bottom: 3rem;
}

/* ===== INTRODUCTION ===== */

.intro {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.intro-text {
  max-width: 600px;
}

.profile-img {
  width: 250px;
  height: 250px;
  border-radius: 75%;
  object-fit: cover;
  border: 4px solid var(--accent-color);
}

/* ===== SKILLS ===== */
.skills {
  margin-top: 2rem;
}

.skills h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.skills ul {
  padding-left: 1.2rem;
  margin-bottom: 1.5rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 1.5rem;
}

.skill-group {
  height: 100%;
  background: var(--primary-color);
  padding: 1rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

/* ===== LINKS ===== */
a {
  color: var(--accent-color);
}

a:hover {
  text-decoration: underline;
}