/* ==========================================================================
   Resume Website Design System - Chandra Sekhar Nandikolla
   Themes: Glassmorphic Dark (Default), Modern Light, Cyber Tech Blue
   ========================================================================== */

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

:root {
  /* Default Dark Glassmorphic Theme */
  --bg-primary: #090d16;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(31, 41, 55, 0.88);
  --border-color: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(59, 130, 246, 0.4);
  
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --accent-primary: #3b82f6;
  --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #ec4899 100%);
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
  --glass-blur: blur(16px);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Overrides */
[data-theme="light"] {
  --bg-primary: #f3f4f6;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.88);
  --bg-card-hover: rgba(255, 255, 255, 0.98);
  --border-color: rgba(0, 0, 0, 0.08);
  --border-glow: rgba(37, 99, 235, 0.3);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  
  --accent-primary: #2563eb;
  --accent-gradient: linear-gradient(135deg, #1d4ed8 0%, #4f46e5 50%, #0284c7 100%);
  
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
}

/* Cyber Neon Theme Overrides */
[data-theme="cyber"] {
  --bg-primary: #040814;
  --bg-secondary: #0a1128;
  --bg-card: rgba(10, 17, 40, 0.85);
  --bg-card-hover: rgba(16, 26, 60, 0.95);
  --border-color: rgba(6, 182, 212, 0.3);
  --border-glow: rgba(6, 182, 212, 0.8);
  
  --text-primary: #e0f2fe;
  --text-secondary: #7dd3fc;
  --text-muted: #38bdf8;
  
  --accent-primary: #06b6d4;
  --accent-gradient: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #00c6ff 100%);
  
  --shadow-lg: 0 0 25px rgba(6, 182, 212, 0.25);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background: radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 40%),
              var(--bg-primary);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Header & Glass Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 13, 22, 0.8);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-normal);
}

[data-theme="light"] .navbar {
  background: rgba(255, 255, 255, 0.85);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.2rem;
  font-weight: 800;
}

.nav-brand-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.nav-links {
  display: flex;
  gap: 1.75rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

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

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Control Buttons */
.btn-control {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
  backdrop-filter: var(--glass-blur);
}

.btn-control:hover {
  border-color: var(--accent-primary);
  background: var(--bg-card-hover);
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  border: none;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.925rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
  transition: var(--transition-fast);
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-color);
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.925rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
}

.btn-outline:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.05);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

/* Hero Section */
.hero-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  align-items: center;
  position: relative;
  overflow: hidden;
  margin-bottom: 2.5rem;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--accent-gradient);
}

/* Avatar Upload Styling */
.avatar-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.avatar-container {
  position: relative;
  width: 200px;
  height: 200px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 3px solid var(--border-color);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  transition: var(--transition-normal);
}

.avatar-container:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 12px 30px rgba(59, 130, 246, 0.4);
}

.avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.avatar-overlay {
  position: absolute;
  inset: 0;
  background: rgba(9, 13, 22, 0.78);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: #fff;
  opacity: 0;
  cursor: pointer;
  transition: var(--transition-fast);
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  padding: 0.5rem;
}

.avatar-container:hover .avatar-overlay {
  opacity: 1;
}

.avatar-input {
  display: none;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: var(--accent-emerald);
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 600;
  margin-bottom: 0.85rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-name {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
  line-height: 1.2;
}

.hero-title {
  font-size: 1.2rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-meta-item svg {
  color: var(--accent-primary);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Counter Metrics Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 3rem;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  transition: var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-lg);
}

.stat-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.stat-number {
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
  font-weight: 500;
}

/* Section Header */
.section {
  margin-bottom: 3.5rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 1.75rem;
}

.section-title {
  font-size: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-title-icon {
  color: var(--accent-primary);
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

/* Glass Card */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
}

.glass-card:hover {
  border-color: var(--border-glow);
}

/* Summary Section */
.summary-text {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* Skills Section & Live Search */
.skills-filter-bar {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.search-input {
  flex: 1;
  min-width: 260px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

.search-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.skills-category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.5rem;
}

.skill-category-title {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.skill-tag {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: var(--transition-fast);
}

[data-theme="light"] .skill-tag {
  background: rgba(0, 0, 0, 0.04);
}

.skill-tag:hover {
  background: rgba(59, 130, 246, 0.15);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-2px);
}

/* Experience Timeline */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 7px;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 2.25rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -2rem;
  top: 1.5rem;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--accent-primary);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

.timeline-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: var(--transition-fast);
}

.timeline-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-lg);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.role-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.company-name {
  color: var(--accent-primary);
  font-weight: 600;
  font-size: 1rem;
}

.timeline-date {
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent-primary);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 700;
}

.timeline-location {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.timeline-bullets {
  list-style-type: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.timeline-bullets li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.timeline-bullets li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-weight: bold;
}

.client-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--border-color);
}

.client-pill {
  font-size: 0.775rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

/* Education & Languages Grid */
.two-col-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
}

.edu-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.edu-degree {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.edu-school {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.language-item {
  margin-bottom: 1.25rem;
}

.language-item:last-child {
  margin-bottom: 0;
}

.language-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.4rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.progress-bar-bg {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  transition: width 1s ease-in-out;
}

/* Contact Section & Toast */
.contact-card {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2.5rem;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.contact-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

.form-input, .form-textarea {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* Editable Mode Indicator */
.editable-active [contenteditable="true"] {
  outline: 2px dashed var(--accent-amber) !important;
  outline-offset: 4px;
  border-radius: 4px;
  background: rgba(245, 158, 11, 0.05);
}

.edit-mode-banner {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 200;
  background: #f59e0b;
  color: #000;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  box-shadow: 0 10px 25px rgba(245, 158, 11, 0.4);
  display: none;
  align-items: center;
  gap: 0.75rem;
  animation: slideUp 0.3s ease;
}

.edit-mode-banner.active {
  display: flex;
}

@keyframes slideUp {
  from { transform: translateY(50px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Toast notification */
.toast-container {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
}

.toast {
  background: #10b981;
  color: #fff;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition-normal);
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Footer */
footer {
  text-align: center;
  padding: 2.5rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Print CSS Stylesheet */
@media print {
  body {
    background: #ffffff !important;
    color: #0f172a !important;
    font-size: 11pt;
  }
  
  .navbar, .btn-control, .btn-primary, .btn-outline, .avatar-overlay, 
  .skills-filter-bar, .edit-mode-banner, .contact-card form, footer {
    display: none !important;
  }
  
  .container {
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  
  .hero-card {
    background: none !important;
    border: none !important;
    padding: 0 0 1.5rem 0 !important;
    box-shadow: none !important;
    grid-template-columns: 140px 1fr !important;
    gap: 1.5rem !important;
    border-bottom: 2px solid #0f172a !important;
    border-radius: 0 !important;
  }
  
  .avatar-container {
    width: 130px !important;
    height: 130px !important;
    border-radius: 50% !important;
  }
  
  .glass-card, .timeline-card, .stat-card {
    background: none !important;
    border: 1px solid #cbd5e1 !important;
    box-shadow: none !important;
    color: #0f172a !important;
  }
  
  .hero-name {
    color: #0f172a !important;
    font-size: 2rem !important;
  }
  
  .text-gradient {
    background: none !important;
    -webkit-text-fill-color: initial !important;
    color: #1e3a8a !important;
  }
  
  .role-title, .company-name, .section-title {
    color: #1e3a8a !important;
  }
  
  .timeline::before {
    background: #cbd5e1 !important;
  }
  
  .timeline-dot {
    border-color: #1e3a8a !important;
  }

  .timeline-bullets li {
    color: #334155 !important;
  }
  
  .section {
    page-break-inside: avoid;
    margin-bottom: 1.5rem !important;
  }
}

/* Responsive Layout */
@media (max-width: 900px) {
  .hero-card {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
    padding: 2rem;
  }
  
  .hero-meta {
    justify-content: center;
  }
  
  .two-col-grid, .contact-card {
    grid-template-columns: 1fr;
  }
  
  .nav-links {
    display: none;
  }
}