/* === Base Styles === */
:root {
  --primary: #007bfe;
  --primary-dark: #005fd1;
  --light-bg: linear-gradient(120deg, #a1c4fd, #c2e9fb);
  --dark-bg: linear-gradient(120deg, #0f2027, #203a43, #2c5364);
  --light-text: #001f3f;
  --dark-text: #e0e0e0;
  --card-bg: #ffffff;
  --card-dark-bg: #1f1f2f;
}

body {
  background: var(--light-bg);
  font-family: 'Segoe UI', sans-serif;
  color: #444;
  margin: 0;
  padding: 0;
  transition: background 0.4s ease, color 0.4s ease;
}

body.dark-mode {
  background: var(--dark-bg);
  color: var(--dark-text);
}

/* === Typography === */
h1, h2, h3 {
  color: var(--light-text);
  transition: color 0.3s ease;
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3 {
  color: var(--dark-text);
}

/* === Section Layout === */
section {
  padding: 2rem;
  max-width: 1000px;
  margin: auto;
}

/* === Buttons === */
button, .btn {
  background-color: var(--primary);
  color: #fff;
  padding: 12px 25px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

button:hover, .btn:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
}

/* === Header === */
header {
  background: linear-gradient(to right, #0f2027, #203a43, #2c5364);
  color: #fff;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.logo {
  font-size: 1.8rem;
  font-weight: bold;
}

/* === Navigation === */
nav ul {
  list-style: none;
  display: flex;
  gap: 1.2rem;
  margin: 0;
  padding: 0;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #fff;
  transition: width 0.3s ease;
}

nav a:hover::after {
  width: 100%;
}

/* === Hero Section === */
.hero {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  text-align: center;
  padding: 3rem 2rem;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  border-bottom-left-radius: 50px;
  border-bottom-right-radius: 50px;
}

/* === About Section === */
.about-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2rem;
  justify-content: center;
}

.about-content img {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* === Skills === */
.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  list-style: none;
  padding: 0;
  justify-content: center;
}

.skills-list li {
  background: #e0e7ff;
  color: var(--light-text);
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  font-weight: 500;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  transition: transform 0.2s ease;
}

body.dark-mode .skills-list li {
  background: #2e3b55;
  color: #fff;
}

.skills-list li:hover {
  transform: scale(1.05);
}

/* === Project Cards === */
.project {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 12px;
  margin-bottom: 2rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

body.dark-mode .project {
  background: var(--card-dark-bg);
  color: var(--dark-text);
}

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

/* === Footer === */
footer {
  background-color: #1f1f1f;
  color: #fdf8f8;
  text-align: center;
  padding: 1.5rem;
  margin-top: 4rem;
  font-size: 0.95rem;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.2);
}

/* === Theme Toggle Button === */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 50px;
  padding: 10px 15px;
  font-size: 1rem;
  cursor: pointer;
  z-index: 1000;
  transition: background 0.3s;
}

.theme-toggle:hover {
  background: var(--primary-dark);
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.hero {
  background: url('background-coder5.jpeg') no-repeat center center;
  background-size: cover;
  color: rgb(231, 231, 237);
  text-align: center;
  padding: 4rem 3rem;
  border-bottom-left-radius: 50px;
  border-bottom-right-radius: 50px;
  position: relative;
  z-index: 1;
}

.hero-image img:hover {
  transform: scale(1.05);
}

/* Base styles */
.menu-toggle {
  display: none;
  font-size: 2rem;
  cursor: pointer;
  color: white;
  z-index: 1001;
  position: absolute;
  top: 15px;
  right: 20px;
}

/* Desktop nav */
nav ul {
  display: flex;
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

/* Mobile styles */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  nav ul {
    display: none;
    flex-direction: column;
    background-color: #333;
    position: absolute;
    top: 60px;
    right: 20px;
    padding: 10px 20px;
    border-radius: 10px;
    z-index: 1000;
    width: 200px;
  }

  nav ul.show {
    display: flex;
  }

  nav ul li {
    width: 100%;
  }

  nav ul li a {
    display: block;
    color: white;
    text-decoration: none;
    padding: 10px;
    width: 100%;
  }

  nav ul li a:hover {
    background-color: #555;
    border-radius: 5px;
  }
}