/* ============================================
   ASHISH KUMAR - Projects Page Styles
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800;900&display=swap');

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-glass: rgba(255, 255, 255, 0.06);
  --bg-glass-hover: rgba(255, 255, 255, 0.1);
  --border-glass: rgba(255, 255, 255, 0.08);
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b8;
  --text-muted: #6b6b80;
  --accent-green: #00ffab;
  --accent-purple: #7c3aed;
  --accent-gold: #ffae00;
  --accent-blue: #3b82f6;
  --accent-pink: #ec4899;
  --gradient-main: linear-gradient(135deg, #7c3aed 0%, #00ffab 50%, #3b82f6 100%);
  --gradient-hero: linear-gradient(135deg, #7c3aed 0%, #ec4899 50%, #ffae00 100%);
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-glow: 0 0 30px rgba(124, 58, 237, 0.2);
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background-color: var(--bg-primary); color: var(--text-primary);
  font-family: var(--font-body); line-height: 1.7; overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: linear-gradient(180deg, var(--accent-purple), var(--accent-green)); border-radius: 4px; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* Background */
.bg-animated {
  position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; z-index: -2; background: var(--bg-primary);
}
.bg-animated::before {
  content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(124, 58, 237, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(0, 255, 171, 0.07) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 80%, rgba(59, 130, 246, 0.06) 0%, transparent 50%);
  animation: bgFloat 20s ease-in-out infinite;
}
@keyframes bgFloat {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(2%, -2%) rotate(1deg); }
  50% { transform: translate(-1%, 3%) rotate(-1deg); }
  75% { transform: translate(-3%, -1%) rotate(0.5deg); }
}

/* Page Loader */
.page-loader { position: fixed; inset: 0; z-index: 9999; background: var(--bg-primary); display: flex; align-items: center; justify-content: center; opacity: 1; transition: opacity 0.5s ease; pointer-events: none; }
.page-loader.loaded { opacity: 0; }
.loader-spinner { width: 40px; height: 40px; border-radius: 50%; border: 3px solid var(--border-glass); border-top-color: var(--accent-purple); animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Navbar */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 0 40px; background: rgba(10, 10, 15, 0.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border-glass); transition: var(--transition-smooth); }
.nav-container { max-width: 1300px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; height: 80px; }
.nav-logo { display: flex; align-items: center; gap: 14px; z-index: 1001; }
.nav-logo img { width: 48px; height: 48px; object-fit: contain; filter: drop-shadow(0 0 8px rgba(124, 58, 237, 0.3)); }
.nav-logo span { font-family: var(--font-heading); font-size: 1.4rem; font-weight: 700; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; gap: 8px; align-items: center; }
.nav-links a { font-family: var(--font-body); font-size: 0.9rem; font-weight: 500; color: var(--text-secondary); padding: 8px 18px; border-radius: 50px; transition: var(--transition-fast); position: relative; }
.nav-links a:hover, .nav-links a.active { color: var(--text-primary); background: var(--bg-glass); }
.nav-links a.active::after { content: ''; position: absolute; bottom: 4px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--gradient-main); border-radius: 2px; }
.nav-links a i { margin-right: 6px; font-size: 0.85rem; }
.nav-links a.nav-github { background: var(--bg-glass); border: 1px solid var(--border-glass); margin-left: 8px; }
.nav-links a.nav-github:hover { border-color: var(--accent-purple); box-shadow: 0 0 15px rgba(124, 58, 237, 0.2); }
.hamburger { display: none; flex-direction: column; cursor: pointer; z-index: 1001; gap: 5px; padding: 10px; }
.hamburger span { width: 28px; height: 2.5px; background: var(--text-primary); border-radius: 2px; transition: var(--transition-smooth); transform-origin: right; }
.hamburger.active span:nth-child(1) { transform: rotate(-45deg) translate(1px, -1px); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: translateX(10px); }
.hamburger.active span:nth-child(3) { transform: rotate(45deg) translate(1px, 1px); }

/* Section */
.section { padding: 40px 40px 80px; }
.section-container { max-width: 1200px; margin: 0 auto; }

/* Page Hero */
.projects-hero { padding: 140px 40px 20px; text-align: center; }
.page-title { font-family: var(--font-heading); font-size: clamp(2.5rem, 4vw, 3.5rem); font-weight: 900; margin-bottom: 12px; }
.page-subtitle { color: var(--text-secondary); font-size: 1.1rem; }
.gradient-text { background: var(--gradient-hero); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* Category Titles */
.category-title {
  font-family: var(--font-heading); font-size: 1.8rem; font-weight: 700;
  margin-bottom: 32px; text-align: center; color: var(--text-primary);
}

/* Glass Card */
.glass-card {
  background: var(--bg-glass); border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg); backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
}
.glass-card:hover {
  background: var(--bg-glass-hover); border-color: rgba(124, 58, 237, 0.3);
  box-shadow: var(--shadow-glow); transform: translateY(-6px);
}

/* Project Grid */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

/* Project Card */
.project-card {
  display: flex; flex-direction: column; overflow: hidden;
}

/* Card Image */
.card-image {
  position: relative; overflow: hidden;
  border-bottom: 1px solid var(--border-glass);
}
.card-image > img {
  width: 100%; height: 210px; object-fit: cover;
  transition: transform 0.5s ease;
}
.project-card:hover .card-image > img {
  transform: scale(1.05);
}

/* Hover Overlay */
.card-overlay {
  position: absolute; inset: 0;
  background: rgba(10, 10, 15, 0.7);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: var(--transition-smooth);
}
.project-card:hover .card-overlay { opacity: 1; }
.overlay-btn {
  width: 50px; height: 50px; border-radius: 50%;
  background: var(--accent-purple); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; transition: var(--transition-smooth);
  transform: scale(0.6);
}
.project-card:hover .overlay-btn { transform: scale(1); }
.overlay-btn:hover { background: var(--accent-green); color: var(--bg-primary); }

/* Image Slider */
.slider-container { position: relative; background: var(--bg-secondary); }
.image-slider {
  display: flex; overflow-x: hidden; scroll-behavior: smooth; width: 100%;
}
.image-slider img {
  flex: 0 0 100%; width: 100%; height: 220px; object-fit: contain; padding: 10px 0;
}
.slider-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(124, 58, 237, 0.7); color: #fff;
  border: none; width: 32px; height: 32px; border-radius: 50%;
  cursor: pointer; display: flex; justify-content: center; align-items: center;
  z-index: 10; transition: var(--transition-smooth); font-size: 0.8rem;
}
.slider-btn:hover { background: var(--accent-green); color: var(--bg-primary); transform: translateY(-50%) scale(1.1); }
.left-btn { left: 8px; }
.right-btn { right: 8px; }

/* Slider Dots */
.slider-dots {
  display: flex; justify-content: center; gap: 6px;
  padding: 8px 0; position: absolute; bottom: 0; width: 100%;
}
.slider-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.25); cursor: pointer;
  transition: var(--transition-fast);
}
.slider-dot.active {
  background: var(--accent-purple); width: 20px; border-radius: 4px;
}

/* Card Body */
.card-body {
  padding: 24px; display: flex; flex-direction: column; flex-grow: 1;
}
.card-body h3 {
  font-family: var(--font-heading); font-size: 1.2rem; font-weight: 700;
  margin-bottom: 10px; color: var(--text-primary);
}
.card-body p {
  font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6;
  margin-bottom: 14px; flex-grow: 1;
}
.card-body strong { color: var(--accent-green); }

/* Description toggle */
.description-text {
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
  overflow: hidden; transition: all 0.3s ease;
}
.description-text.expanded {
  display: block; -webkit-line-clamp: unset; overflow: visible;
}
.read-more-btn {
  background: none; border: none; color: var(--accent-gold); cursor: pointer;
  font-size: 0.85rem; font-weight: 600; padding: 0; margin-bottom: 14px;
  text-align: left; transition: var(--transition-fast); font-family: var(--font-body);
}
.read-more-btn:hover { color: var(--accent-green); }

/* Tags */
.card-tags {
  display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px;
}
.card-tags span {
  padding: 4px 12px; border-radius: 50px; font-size: 0.7rem; font-weight: 600;
  background: rgba(124, 58, 237, 0.12); border: 1px solid rgba(124, 58, 237, 0.2);
  color: var(--accent-purple); letter-spacing: 0.5px; text-transform: uppercase;
}

/* Card Links */
.card-links {
  display: flex; gap: 10px; margin-top: auto;
}
.link-btn {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 36px; border-radius: var(--radius-sm);
  font-size: 1rem; transition: var(--transition-smooth);
}
.link-btn.github { background: #333; color: #fff; }
.link-btn.github:hover { background: #555; transform: translateY(-2px); }
.link-btn.live { background: #28a745; color: #fff; }
.link-btn.live:hover { background: #34ce57; transform: translateY(-2px); }
.link-btn.linkedin { background: #0077b5; color: #fff; }
.link-btn.linkedin:hover { background: #0093e0; transform: translateY(-2px); }
.link-btn.download { background: #e84118; color: #fff; }
.link-btn.download:hover { background: #ff5733; transform: translateY(-2px); }

/* Scroll Reveal */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-stagger > * { opacity: 0; transform: translateY(30px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.15s; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.2s; }
.reveal-stagger.visible > * { opacity: 1; transform: translateY(0); }

/* Filter Bar */
.filter-bar {
  display: flex; justify-content: center; gap: 10px;
  margin-top: 32px; flex-wrap: wrap;
}
.filter-btn {
  padding: 10px 24px; border-radius: 50px;
  background: var(--bg-glass); border: 1px solid var(--border-glass);
  color: var(--text-secondary); font-family: var(--font-body);
  font-size: 0.85rem; font-weight: 600;
  cursor: pointer; transition: var(--transition-smooth);
}
.filter-btn:hover {
  color: var(--text-primary); border-color: var(--accent-purple);
}
.filter-btn.active {
  background: var(--gradient-main); color: var(--bg-primary);
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
}

/* Category Show/Hide */
.project-category {
  transition: opacity 0.4s ease, max-height 0.5s ease;
  overflow: hidden;
}
.project-category.hidden {
  opacity: 0; max-height: 0; padding-top: 0; padding-bottom: 0;
  margin: 0; pointer-events: none;
}

/* Image Modal */
.modal {
  display: none; position: fixed; inset: 0; z-index: 2000;
  background: rgba(0, 0, 0, 0.92); backdrop-filter: blur(10px);
  justify-content: center; align-items: center;
}
.modal.open { display: flex; }
.modal-image {
  max-width: 85%; max-height: 85vh; object-fit: contain;
  border-radius: var(--radius-md); border: 2px solid var(--accent-purple);
  animation: zoomIn 0.4s ease;
}
@keyframes zoomIn {
  from { transform: scale(0.7); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.modal-close {
  position: absolute; top: 20px; right: 30px;
  font-size: 2.5rem; color: var(--text-primary);
  cursor: pointer; transition: var(--transition-fast); z-index: 2001;
}
.modal-close:hover { color: var(--accent-green); }
#modalCaption {
  text-align: center; color: var(--text-muted);
  margin-top: 12px; font-size: 0.9rem;
  position: absolute; bottom: 30px; width: 100%;
}

/* Zoomable slider images */
.image-slider img { cursor: zoom-in; }

/* Responsive */
@media (max-width: 768px) {
  .navbar { padding: 0 20px; }
  .hamburger { display: flex; }
  .nav-links {
    position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
    background: rgba(10, 10, 15, 0.98); backdrop-filter: blur(20px);
    flex-direction: column; justify-content: center; gap: 8px; padding: 40px;
    transition: var(--transition-smooth); border-left: 1px solid var(--border-glass);
  }
  .nav-links.open { right: 0; }
  .nav-links a { font-size: 1.1rem; padding: 14px 24px; width: 100%; text-align: left; border-radius: var(--radius-md); }
  .projects-hero { padding: 110px 20px 10px; }
  .section { padding: 30px 20px 60px; }
  .project-grid { grid-template-columns: 1fr; gap: 20px; }
  .filter-bar { gap: 6px; }
  .filter-btn { padding: 8px 16px; font-size: 0.8rem; }
}