/* ===== VARIABLES & RESET ===== */
:root {
  --navy: #0a192f;
  --light-navy: #112240;
  --lightest-navy: #233554;
  --slate: #8892b0;
  --light-slate: #a8b2d1;
  --white: #e6f1ff;
  --green: #64ffda;
  --font-main: 'Inter', sans-serif;
  --font-mono: 'Fira Code', monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px; /* Fixes header overlapping content */
}

body {
  background-color: var(--navy);
  color: var(--slate);
  font-family: var(--font-main);
  line-height: 1.6;
}

a { text-decoration: none; color: inherit; transition: all 0.25s ease; }
ul { list-style: none; }

/* ===== HEADER ===== */
header {
  height: 80px;
  padding: 0 50px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(10, 25, 47, 0.95); /* Slightly darker for better contrast */
  backdrop-filter: blur(10px);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  box-shadow: 0 10px 30px -10px rgba(2,12,27,0.7);
}

.logo {
  color: var(--green);
  font-weight: 800;
  font-size: 1.5rem;
}

.logo .dot {
  color: var(--white);
}

/* DESKTOP NAV (Default) */
nav ul {
  display: flex;
  align-items: center;
  gap: 30px;
}

nav ul li a {
  color: var(--lightest-slate);
  font-size: 0.9rem;
  font-weight: 600;
}

nav ul li a:hover { color: var(--green); }

/*btn-resume {
  border: 1px solid var(--green);
  color: var(--green);
  padding: 8px 16px;
  border-radius: 4px;
  transition: all 0.3s ease;
}

.btn-resume:hover {
  background: rgba(100, 255, 218, 0.1);
}*/

/* HAMBURGER (Hidden on Desktop) */
.hamburger {
  display: none; /* Crucial: Hides it on big screens */
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--green);
  margin: 5px 0;
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ===== HERO SECTION ===== */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 50px;
}

.mono-text {
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 1rem;
  margin-bottom: 20px;
}

#hero h1 {
  font-size: clamp(40px, 8vw, 80px);
  color: var(--white);
  line-height: 1.1;
  font-weight: 800;
}

#hero h2 {
  font-size: clamp(30px, 6vw, 60px);
  color: var(--slate);
  line-height: 1.1;
  margin-bottom: 20px;
  font-weight: 700;
}

.hero-desc {
  max-width: 500px;
  font-size: 1.1rem;
  margin-bottom: 50px;
  color: var(--slate);
}

.hero-buttons { display: flex; gap: 20px; flex-wrap: wrap; }

.btn {
  color: var(--navy);
  background-color: var(--green);
  padding: 1rem 1.75rem;
  border-radius: 4px;
  font-weight: 600;
  border: 1px solid var(--green);
}

.btn:hover {
  background-color: rgba(100, 255, 218, 0.8);
}

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

.btn-outline:hover {
  background: rgba(100, 255, 218, 0.1);
}

/* ===== SKILLS SECTION ===== */
#skills {
  padding: 100px 50px;
  max-width: 1000px;
  margin: 0 auto;
}

#skills h2, #projects h2, #contact h2 {
  font-size: clamp(26px, 5vw, 32px);
  color: var(--white);
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  font-weight: 700;
}

#skills h2::after, #projects h2::after, #contact h2::after {
  content: "";
  display: block;
  width: 300px;
  height: 1px;
  background: var(--lightest-navy);
  margin-left: 20px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.skill-card {
  background: var(--light-navy);
  padding: 25px;
  border-radius: 4px;
  transition: transform 0.2s;
  cursor: default;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.skill-card:hover { transform: translateY(-5px); }

.skill-card i {
  font-size: 2.5rem;
  color: var(--green);
  margin-bottom: 20px;
}

.skill-card h3 { color: var(--white); margin-bottom: 10px; font-weight: 600; }
.skill-card p { font-size: 0.9rem; }

/* ===== PROJECTS SECTION ===== */
#projects { padding: 100px 50px; max-width: 1000px; margin: 0 auto; }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 25px;
}

.project-card {
  background-color: var(--light-navy);
  padding: 2rem 1.75rem;
  border-radius: 4px;
  transition: transform 0.25s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 30px -15px rgba(2,12,27,0.7);
}

.project-card:hover { transform: translateY(-7px); }

.project-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 30px;
  color: var(--green);
  font-size: 1.5rem;
}

.project-links a {
  color: var(--light-slate);
  margin-left: 10px;
}

.project-links a:hover { color: var(--green); }

.project-card h3 {
  color: var(--white);
  font-size: 1.4rem;
  margin-bottom: 10px;
  font-weight: 700;
}

.project-card p {
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--light-slate);
}

/* ===== CONTACT & FOOTER ===== */
#contact {
  text-align: center;
  padding: 100px 20px;
  max-width: 600px;
  margin: 0 auto;
}

#contact h2 { justify-content: center; }
#contact h2::after { display: none; }
#contact p { margin-bottom: 50px; font-size: 1.1rem; }

footer {
  text-align: center;
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--light-slate);
  margin-bottom: 20px;
}

/* ===== MOBILE OPTIMIZATION ===== */
@media (max-width: 768px) {
  /* Header Adjustments */
  header { padding: 0 25px; }

  /* Hero Adjustments */
  #hero { padding: 0 25px; }
  #hero h1 { font-size: 40px; }
  #hero h2 { font-size: 30px; }
  
  /* Show Hamburger */
  .hamburger { display: block; }

  /* Hide Desktop Nav & Style Mobile Nav */
  nav ul {
    display: none; /* Hidden by default */
    flex-direction: column;
    position: absolute;
    top: 80px;
    right: 0;
    width: 100%;
    height: auto;
    background: var(--light-navy);
    padding: 30px;
    box-shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
    border-bottom: 2px solid var(--green);
  }
  
  /* The 'active' class is added by JS when clicked */
  nav ul.active { display: flex; }

  nav ul li { margin: 15px 0; width: 100%; text-align: center; }
  nav ul li a { display: block; font-size: 1.1rem; }

  /* Section Adjustments */
  #skills, #projects, #contact { padding: 80px 25px; }
  
  #skills h2::after, #projects h2::after {
    width: 100%; /* Full width line on mobile */
    margin-left: 10px;
  }
}