/* =========================================
   VARIABLES & BASE STYLES
   ========================================= */
:root {
  /* Colors */
  --bg-dark: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #334155;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent-primary: #8b5cf6;
  --accent-secondary: #3b82f6;
  --nav-bg: rgba(15, 23, 42, 0.85);

  /* Typography */
  --font-body: "Inter", sans-serif;
  --font-heading: "Outfit", sans-serif;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* Typography Base */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

a {
  text-decoration: none;
  color: inherit;
}

/* =========================================
   HEADER & NAVIGATION
   ========================================= */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 0;
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  transition: all var(--transition-normal);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  font-family: var(--font-heading);
  letter-spacing: -0.5px;
}

.logo .highlight {
  color: var(--accent-primary);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 30px;
}

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-main);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--accent-primary);
}

.nav-link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: var(--accent-primary);
  transition: width var(--transition-normal);
}

.nav-link:hover::after {
  width: 100%;
}

.hamburger {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-block;
  padding: 14px 28px;
  font-weight: 600;
  border-radius: 8px;
  transition: all var(--transition-normal);
  font-family: var(--font-heading);
  cursor: pointer;
  text-align: center;
}

.primary-btn {
  background: linear-gradient(
    135deg,
    var(--accent-primary),
    var(--accent-secondary)
  );
  color: white;
  border: none;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

.secondary-btn {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--accent-primary);
}

.secondary-btn:hover {
  background: rgba(139, 92, 246, 0.1);
  transform: translateY(-2px);
}

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
}

.hero-content {
  max-width: 800px;
}

.greeting {
  color: var(--accent-primary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.hero-name {
  font-size: clamp(40px, 8vw, 80px);
  color: var(--text-main);
  margin-bottom: 10px;
}

.hero-role {
  font-size: clamp(30px, 6vw, 60px);
  color: var(--text-muted);
  margin-bottom: 30px;
}

.hero-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 540px;
  margin-bottom: 50px;
}

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

/* =========================================
   GLOBAL SECTIONS
   ========================================= */
.section {
  padding: 100px 0;
}

.section.dark {
  background-color: rgba(0, 0, 0, 0.2);
}

.section-header {
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.5rem;
  display: inline-block;
  position: relative;
}

.underline {
  height: 4px;
  width: 60px;
  background: linear-gradient(
    90deg,
    var(--accent-primary),
    var(--accent-secondary)
  );
  margin-top: 10px;
  border-radius: 2px;
}

/* =========================================
   ABOUT SECTION
   ========================================= */
.about-content {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.about-text p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 20px;
}

/* =========================================
   SKILLS SECTION
   ========================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 20px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 25px 15px;
  text-align: center;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.skill-card i {
  font-size: 2.5rem;
  color: var(--accent-primary);
  transition: all var(--transition-normal);
}

.skill-card:hover {
  transform: translateY(-5px);
  background: var(--bg-card-hover);
  border-color: rgba(139, 92, 246, 0.3);
}

.skill-card:hover i {
  color: var(--text-main);
}

.skill-card span {
  font-weight: 500;
  font-size: 0.95rem;
}

/* =========================================
   PROJECTS SECTION
   ========================================= */
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 30px;
}

.project-card {
  background: var(--bg-card);
  border-radius: 12px;
  overflow: hidden;
  transition: all var(--transition-normal);
  border: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 30px -10px rgba(0, 0, 0, 0.5);
  border-color: rgba(139, 92, 246, 0.3);
}

.project-content {
  padding: 30px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-content h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: var(--text-main);
  transition: color var(--transition-normal);
}

.project-card:hover h3 {
  color: var(--accent-primary);
}

.project-content p {
  color: var(--text-muted);
  margin-bottom: 25px;
  flex-grow: 1;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 25px;
}

.tech-stack span {
  font-size: 0.8rem;
  font-family: var(--font-heading);
  color: var(--accent-primary);
  background: rgba(139, 92, 246, 0.1);
  padding: 4px 10px;
  border-radius: 20px;
}

.project-links {
  display: flex;
  gap: 15px;
}

.project-link {
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color var(--transition-fast);
}

.project-link:hover {
  color: var(--accent-primary);
}

/* =========================================
   CONTACT SECTION
   ========================================= */
.subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin-bottom: 40px;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.contact-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  font-weight: 500;
  transition: all var(--transition-normal);
}

.contact-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-primary);
  transform: translateY(-3px);
}

.contact-btn i {
  color: var(--accent-primary);
  font-size: 1.2rem;
}

/* =========================================
   FOOTER
   ========================================= */
footer {
  padding: 40px 0;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

footer p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.social-icons {
  display: flex;
  gap: 20px;
}

.social-icons a {
  color: var(--text-muted);
  font-size: 1.2rem;
  transition: color var(--transition-fast);
}

.social-icons a:hover {
  color: var(--accent-primary);
  transform: translateY(-2px);
}

/* =========================================
   MEDIA QUERIES
   ========================================= */
@media (max-width: 768px) {
  .nav-links {
    display: none; /* Can be toggled with JS */
  }

  .hamburger {
    display: block;
  }

  .hero-name {
    font-size: 50px;
  }

  .hero-role {
    font-size: 35px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .contact-links {
    flex-direction: column;
  }
}