project/static/main.css

/* Import Poppins for that clean, punchy look you liked */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

/* ======================================================
   THEME VARIABLES — POLISHED VIBRANT GLASS
====================================================== */

:root {
  /* Richer, deeper gradient for better text contrast */
  --bg-gradient: linear-gradient(135deg, #4158d0 0%, #c850c0 46%, #ffcc70 100%);
  
  /* Crystal Clear Glass - slightly more transparent for "cool" factor */
  --bg-card: rgba(255, 255, 255, 0.82); 
  --bg-navbar: rgba(255, 255, 255, 0.747); 

  /* Crisp Typography */
  --text-main: #2d3436; 
  --text-muted: #636e72; 
  --text-heading: #1e272e; 

  /* Formal yet Bold Accents */
  --accent: #6c5ce7; 
  --accent-hover: #4834d4;
  --border-color: rgba(255, 255, 255, 0.6);

  /* Elevation Shadows */
  --shadow-md: 0 12px 30px rgba(0, 0, 0, 0.12);
  --glass-blur: blur(12px);
  --transition-cubic: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

/* ======================================================
   GLOBAL STYLES
====================================================== */

* {
  box-sizing: border-box;
}

body {
  background: var(--bg-gradient);
  background-attachment: fixed;
  min-height: 100vh;
  color: var(--text-main);
  margin-top: 5.5rem; /* Adjusted for navbar height */
  font-family: 'Poppins', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  color: var(--text-heading);
  font-weight: 700;
  letter-spacing: -0.03em;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition-cubic);
}

/* ======================================================
   NAVBAR (Enhanced & Responsive)
====================================================== */

.bg-steel {
  background: var(--bg-navbar) !important;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-color);
}

.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1050;
  padding: 0.8rem 0;
}

.site-header .navbar-brand {
  font-weight: 800;
  color: var(--accent) !important;
  font-size: 1.4rem;
  letter-spacing: -0.5px;
}

.site-header .nav-link {
  color: var(--text-main) !important;
  font-weight: 500;
  padding: 0.5rem 1.2rem !important;
  border-radius: 8px;
  transition: var(--transition-cubic);
}

.site-header .nav-link:hover {
  background: rgba(108, 92, 231, 0.1);
  color: var(--accent) !important;
}

/* Mobile Nav Menu Style */
@media (max-width: 991px) {
  .navbar-collapse {
    background: rgb(255, 255, 255);
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 15px;
  }
}

/* ======================================================
   CONTENT CARDS (Formal Glass + Shimmer)
====================================================== */

.content-section {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 2.2rem;
  border-radius: 24px;
  margin-bottom: 2rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden; /* For shimmer effect */
  transition: var(--transition-cubic);
}

/* Subtle Shimmer Effect on Card */
.content-section::after {
  content: "";
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: 0.6s;
}

.content-section:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.18);
}

.content-section:hover::after {
  left: 100%;
}

/* ======================================================
   ARTICLES & IMAGES
====================================================== */

.article-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-heading);
}

.article-metadata {
  display: flex;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}

.article-img {
  height: 55px;
  width: 55px;
  border-radius: 16px;
  border: 2px solid #fff;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.account-img {
  height: 120px;
  width: 120px;
  border-radius: 35px;
  border: 5px solid #fff;
  box-shadow: var(--shadow-md);
}

/* ======================================================
   BUTTONS & FORMS
====================================================== */

.btn-outline-info {
  background: var(--accent);
  color: #fff !important;
  border: none;
  font-weight: 600;
  border-radius: 14px;
  padding: 0.8rem 2.2rem;
  box-shadow: 0 6px 20px rgba(108, 92, 231, 0.3);
  transition: var(--transition-cubic);
}

.btn-outline-info:hover {
  background: var(--accent-hover);
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 25px rgba(108, 92, 231, 0.4);
}

.form-control {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  padding: 0.8rem 1.2rem;
  transition: var(--transition-cubic);
}

.form-control:focus {
  background: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.15);
}

/* ======================================================
   RESPONSIVE DESIGN TWEAKS
====================================================== */

@media (max-width: 768px) {
  body { margin-top: 5rem; }
  
  .content-section {
    padding: 1.5rem;
    border-radius: 0; /* Cleaner for edge-to-edge mobile screens */
    border-left: none;
    border-right: none;
  }
  
  .article-title { font-size: 1.4rem; }
  
  .account-img {
    height: 90px;
    width: 90px;
  }
}

/* Style for the actual Hamburger Button */
.navbar-toggler {
  border: none;
  background: rgba(108, 92, 231, 0.1); /* Subtle purple glass tint */
  backdrop-filter: blur(5px);
  padding: 8px;
  border-radius: 10px;
  transition: var(--transition-cubic);
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2);
  outline: none;
}

/* Make the 3-line icon purple to match your accent */
.navbar-toggler-icon {
  filter: invert(45%) sepia(50%) saturate(3000%) hue-rotate(220deg) brightness(95%) contrast(90%);
}