/* ============================================
   Personal Branding Portfolio - Custom Styles
   MKT572 Assignment
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --primary: #DB2777;
  --primary-light: #EC4899;
  --primary-dark: #BE185D;
  --secondary: #0F172A;
  --accent: #C084FC;
  --bg-light: #FFFFFF;
  --bg-dark: #0F172A;
  --text-light: #F8FAFC;
  --text-dark: #1E293B;
  --text-muted: #64748B;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --card-radius: 16px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Smooth Scrolling ---------- */
html {
  scroll-behavior: smooth;
}

/* ---------- Selection ---------- */
::selection {
  background: var(--primary);
  color: #fff;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* ---------- Body ---------- */
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
}

/* ---------- Glassmorphism ---------- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.dark .glass {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* ---------- Gradient Text ---------- */
.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Gradient Backgrounds ---------- */
.gradient-bg-primary {
  background: linear-gradient(135deg, var(--primary), #A855F7);
}

.gradient-bg-hero {
  background: linear-gradient(135deg, #FDF2F8 0%, #FCE7F3 50%, #F3E8FF 100%);
}

.dark .gradient-bg-hero {
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #0F172A 100%);
}

.gradient-bg-card {
  background: linear-gradient(145deg, #ffffff, #fdf2f8);
}

.dark .gradient-bg-card {
  background: linear-gradient(145deg, #1E293B, #0F172A);
}

/* ---------- Card Hover Effects ---------- */
.hover-lift {
  transition: transform var(--transition), box-shadow var(--transition);
}
.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.dark .hover-lift:hover {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* ---------- Navigation ---------- */
.nav-blur {
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(255, 255, 255, 0.8);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.dark .nav-blur {
  background: rgba(15, 23, 42, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-link {
  position: relative;
  transition: color var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition);
  border-radius: 2px;
}

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

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

/* ---------- Hero Section ---------- */
.hero-pattern {
  background-image: radial-gradient(circle at 1px 1px, rgba(219, 39, 119, 0.1) 1px, transparent 0);
  background-size: 40px 40px;
}

/* Profile image glow */
.profile-glow {
  box-shadow: 0 0 0 6px rgba(219, 39, 119, 0.1), 0 0 0 12px rgba(219, 39, 119, 0.05);
}

/* ---------- Timeline ---------- */
.timeline-line {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: linear-gradient(to bottom, var(--primary), var(--accent), transparent);
}

.timeline-dot {
  width: 16px;
  height: 16px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: 0 0 0 4px rgba(219, 39, 119, 0.15);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.dark .timeline-dot {
  border-color: #0F172A;
}

/* ---------- Skill Bars ---------- */
.skill-bar {
  height: 8px;
  border-radius: 4px;
  background: #E2E8F0;
  overflow: hidden;
}

.dark .skill-bar {
  background: #334155;
}

.skill-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 1.5s ease;
}

/* ---------- Portfolio Filter Buttons ---------- */
.filter-btn {
  transition: all var(--transition);
}

.filter-btn.active {
  background: var(--primary) !important;
  color: #fff !important;
}

/* ---------- Blog Card ---------- */
.blog-card-img {
  overflow: hidden;
}

.blog-card-img img {
  transition: transform 0.5s ease;
}

.blog-card:hover .blog-card-img img {
  transform: scale(1.05);
}

/* ---------- Contact Card ---------- */
.contact-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(219, 39, 119, 0.1);
  transition: all var(--transition);
}

.contact-item:hover .contact-icon {
  background: var(--primary);
  color: #fff;
  transform: scale(1.1);
}

/* ---------- Theme Toggle ---------- */
#theme-toggle {
  transition: transform 0.5s ease;
}

#theme-toggle:hover {
  transform: rotate(180deg);
}

/* ---------- Mobile Menu ---------- */
.mobile-menu {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---------- Counter Animation ---------- */
.counter-value {
  font-variant-numeric: tabular-nums;
}

/* ---------- Pulse Animation ---------- */
@keyframes pulse-ring {
  0% {
    box-shadow: 0 0 0 0 rgba(219, 39, 119, 0.4);
  }
  70% {
    box-shadow: 0 0 0 15px rgba(219, 39, 119, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(219, 39, 119, 0);
  }
}

.pulse {
  animation: pulse-ring 2s infinite;
}

/* ---------- Floating Animation ---------- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.float {
  animation: float 4s ease-in-out infinite;
}

/* ---------- Shimmer ---------- */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.shimmer {
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

/* ---------- Back to Top ---------- */
#back-to-top {
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

/* ---------- Pinned/Sticky Note ---------- */
.sticky-note {
  position: relative;
  background: linear-gradient(135deg, #FEF3C7, #FDE68A);
}

.dark .sticky-note {
  background: linear-gradient(135deg, #78350F, #92400E);
}

/* ---------- Print Styles ---------- */
@media print {
  nav, #back-to-top, .no-print { display: none !important; }
  body { background: #fff !important; color: #000 !important; }
}