/* =========================================
CSS RESET + BASE
========================================= */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

:root {
  /* Colors similar to devlopr-jekyll theme */
  --bg: #090e1a;           /* Dark navy */
  --bg-alt: #1e293b;       /* Slightly lighter navy */
  --text: #e2e8f0;         /* Soft gray text */
  --text-muted: #94a3b8;   /* Muted text */
  --accent: #ffffff;       /* Sky blue highlight */
  --accent-hover: #0ea5e9;
  --card-bg: #1e293b;
  --card-border: #334155;
  --radius: 12px;
  --section-padding: 4rem;
  --max-width: 960px;

  font-size: 16px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--text);
  font-weight: 600;
}

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

/* Links */
a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  color: var(--accent-hover);
}

/* =========================================
LAYOUT HELPERS
========================================= */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: var(--section-padding) 1.5rem;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

/* Utility classes */
.text-center { text-align: center; }
.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }

/* =========================================
HEADER
========================================= */

.site-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--card-border);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo {
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 1rem;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

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

/* Mobile toggle button */
.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ============ Mobile styles ============ */
@media (max-width: 768px) {
  .nav {
    align-items: flex-start;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    right: 1.5rem;
    top: 60px;
    background: var(--bg-alt);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    flex-direction: column;
    gap: 0.5rem;
    display: none; /* hidden by default */
  }

  .nav-links.is-open {
    display: flex;
  }
}


/* =========================================
HOME BANNER
========================================= */

.home-banner {
  text-align: center;
  padding: 4rem 1.5rem;
}

.home-banner .profile-img {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 3px solid var(--accent);
  /* margin-bottom: 1rem; */
  object-fit: cover;
}

.home-banner h1 {
  font-size: 2.5rem;
  margin-top: 1rem;
}

.home-banner-subtitle {
  color: var(--text-muted);
  font-size: 1.2rem;
  margin-top: 0.5rem;
}

/* =========================================
GENERIC BANNER
========================================= */

.page-banner {
  /* height: 40vh; 
  min-height: 260px; */
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-banner-overlay {
  background: rgba(0, 0, 0, 0.6);     /* darkens the bg image */
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-banner-title {
  color: var(--text);
  font-size: 2.5rem;
  font-weight: 600;
  text-align: center;
  padding: 10rem;
}


/* =========================================
BUTTONS
========================================= */

.btn {
  display: inline-block;
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 500;
  transition: 0.25s ease;
}

.btn-primary {
  background: var(--accent);
  color: #0f172a;
}
.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-outline {
  border: 1px solid var(--accent);
  color: var(--accent);
  background: transparent;
}
.btn-outline:hover {
  background: var(--accent);
  color: #0f172a;
}

/* =========================================
PROJECT CARDS (devlopr-style)
========================================= */

.project-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  margin-top: 2rem;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform 0.25s, border-color 0.25s;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.project-card-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

/* =========================================
FOOTER
========================================= */

.site-footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--card-border);
  margin-top: 4rem;
  color: var(--text-muted);
}