/* ===================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   =================================== */

:root {
  /* Light Theme Colors */
  --bg-primary: #f7f1f1;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --text-primary: #000000;
  --text-secondary: #1a1c20;
  --text-tertiary: #636b77;
  --accent-primary: #022369;
  --accent-hover: #4b6fbb;
  --border-color: #e2e8f0;
  --sidebar-bg: #f8fafc;
  --sidebar-active: #478af5;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;
  
  /* Layout */
  --sidebar-width: 120px;
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

/* Dark Theme Colors */
[data-theme="dark"] {
  --bg-primary: #101520;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-tertiary: #94a3b8;
  --accent-primary: #0a47ca;
  --accent-hover: #60a5fa;
  --border-color: #334155;
  --sidebar-bg: #1e293b;
  --sidebar-active: #226de6;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
}

/* ===================================
   MODERN CSS RESET
   =================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition-base), color var(--transition-base);
  font-feature-settings: 'liga' 1, 'calt' 1;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ===================================
   THEME TOGGLE BUTTON
   =================================== */

.theme-toggle {
  position: fixed;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  z-index: 10000;
}

.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

/* ===================================
   MAIN LAYOUT
   =================================== */

.main-container {
  display: flex;
  min-height: 100vh;
}

/* ===================================
   SIDEBAR NAVIGATION
   =================================== */

.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-xl) 0;
  z-index: 100;
  transition: all var(--transition-base);
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  width: 100%;
  padding: 0 var(--spacing-sm);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-sm);
  background-color: transparent;
  color: var(--text-tertiary);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-base);
  position: relative;
}

.nav-item:hover {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  transform: translateX(4px);
}

.nav-item.active {
  background-color: var(--sidebar-active);
  color: white;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 40%;
  background-color: var(--sidebar-active);
  border-radius: 0 4px 4px 0;
}

.nav-icon {
  font-size: 1.5rem;
}

.nav-label {
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ===================================
   CONTENT AREA
   =================================== */

.content-area {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: var(--spacing-xl) var(--spacing-lg);
  max-width: 1200px;
  animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ===================================
   HERO SECTION
   =================================== */

.hero-section {
  margin-bottom: var(--spacing-2xl);
}

.profile-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-xl);
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-xl);
  border: 1px solid var(--border-color);
}

.profile-image {
  flex-shrink: 0;
}

.profile-image img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 4px solid var(--accent-primary);
  object-fit: cover;
  box-shadow: var(--shadow-lg);
}

.profile-info {
  flex: 1;
}

.profile-name {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  letter-spacing: -0.05em;
}

.profile-title {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.social-links {
  display: flex;
  gap: var(--spacing-sm);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-xl);
  transition: all var(--transition-base);
}

.social-link:hover {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Info Cards */
.info-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.info-card {
  padding: var(--spacing-md);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  transition: all var(--transition-base);
}

.info-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.info-label {
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.info-value {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--accent-primary);
  transition: color var(--transition-fast);
}

.info-value:hover {
  color: var(--accent-hover);
}

.status-available {
  color: var(--text-secondary);
}

/* ===================================
   TAB CONTENT SECTIONS
   =================================== */

.tab-content {
  position: relative;
}

.content-section {
  display: none;
  animation: slideIn 0.4s ease-out;
}

.content-section.active {
  display: block;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section-heading {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  letter-spacing: -0.05em;
  position: relative;
  display: inline-block;
}

.section-heading::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--accent-primary);
  border-radius: 2px;
}

.subsection-heading {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

/* ===================================
   ABOUT SECTION
   =================================== */

.about-content {
  margin-bottom: var(--spacing-xl);
}

.about-content p {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

/* Competencies Grid */
.competencies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
}

.competency-card {
  padding: var(--spacing-md);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-base);
}

.competency-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.competency-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.skill-tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.625rem;
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-base);
  cursor: pointer;
}

.skill-tag:hover {
  background-color: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

/* ===================================
   RESUME SECTION
   =================================== */

.timeline {
  position: relative;
  padding-left: var(--spacing-lg);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-xl);
}

.timeline-marker {
  position: absolute;
  left: -27px;
  top: 4px;
  width: 12px;
  height: 12px;
  background-color: var(--accent-primary);
  border: 3px solid var(--bg-primary);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--border-color);
}

.timeline-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
}

.timeline-content:hover {
  box-shadow: var(--shadow-lg);
  transform: translateX(4px);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.job-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.company-name {
  font-size: var(--font-size-base);
  color: var(--accent-primary);
  font-weight: 500;
}

.job-period {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  font-weight: 500;
  white-space: nowrap;
}

.job-description {
  color: var(--text-secondary);
}

.responsibility-section {
  margin-bottom: var(--spacing-md);
}

.responsibility-section h5 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.responsibility-section p {
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-sm);
}

.responsibility-section ul,
.achievements ul {
  list-style: disc;
  padding-left: var(--spacing-md);
}

.responsibility-section li,
.achievements li {
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-xs);
}

.achievements {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

/* Education */
.education-item {
  padding: var(--spacing-lg);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
}

.degree-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.institution {
  font-size: var(--font-size-base);
  color: var(--accent-primary);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.education-location {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
}

/* ===================================
   PORTFOLIO SECTION
   =================================== */

.portfolio-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--border-color);
}

.portfolio-tab {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-weight: 500;
  color: var(--text-tertiary);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-base);
}

.portfolio-tab:hover {
  color: var(--text-primary);
}

.portfolio-tab.active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

.portfolio-content {
  display: none;
}

.portfolio-content.active {
  display: block;
  animation: fadeIn 0.3s ease-out;
}

/* Certificate Gallery */
.cert-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.cert-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
}

.cert-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.cert-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: linear-gradient(135deg, #09ecd9, #09ecd9);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  z-index: 10;
  box-shadow: var(--shadow-md);
}

.cert-card.featured {
  border-color: #09ecd9;
}

.cert-image-container {
  width: 100%;
  height: 200px;
  background-color: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.cert-image-container::after {
  content: '🔍 Click to view';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  color: white;
  padding: var(--spacing-sm);
  text-align: center;
  font-size: var(--font-size-sm);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.cert-card:hover .cert-image-container::after {
  opacity: 1;
}

.cert-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.cert-card:hover .cert-image-container img {
  transform: scale(1.1);
}

.cert-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-hover) 100%);
}

.cert-placeholder .cert-icon {
  font-size: 4rem;
}

.cert-info {
  padding: var(--spacing-md);
}

.cert-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.cert-issuer {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  margin-bottom: var(--spacing-sm);
}

.cert-btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: var(--accent-primary);
  color: white;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all var(--transition-base);
}

.cert-btn:hover {
  background-color: var(--accent-hover);
  transform: scale(1.05);
}

/* ===================================
   CERTIFICATE MODAL/LIGHTBOX
   =================================== */

.cert-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.cert-modal.active {
  display: flex;
}

.cert-modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  animation: fadeIn 0.3s ease-out;
}

.cert-modal-content {
  position: relative;
  max-width: 900px;
  width: 100%;
  background-color: var(--bg-primary);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-xl);
  animation: slideUp 0.4s ease-out;
  z-index: 1;
  max-height: 90vh;
  overflow-y: auto;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cert-modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  z-index: 2;
}

.cert-modal-close:hover {
  background-color: var(--accent-primary);
  color: white;
  transform: rotate(90deg);
}

.cert-modal-image {
  width: 100%;
  margin-bottom: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  background-color: var(--bg-secondary);
}

.cert-modal-image img {
  width: 100%;
  height: auto;
  display: block;
}

.cert-modal-info {
  text-align: center;
}

.cert-modal-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.cert-modal-issuer {
  font-size: var(--font-size-base);
  color: var(--text-tertiary);
  margin-bottom: var(--spacing-lg);
}

.cert-modal-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

.cert-modal-btn {
  padding: 0.75rem 2rem;
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-base);
  font-weight: 600;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.verify-btn {
  background-color: var(--accent-primary);
  color: white;
  border: 2px solid var(--accent-primary);
}

.verify-btn:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.download-btn {
  background-color: transparent;
  color: var(--accent-primary);
  border: 2px solid var(--accent-primary);
}

.download-btn:hover {
  background-color: var(--accent-primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.project-card {
  padding: var(--spacing-lg);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-base);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.project-card h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.project-card p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-md);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.tag {
  font-size: 0.7rem;
  padding: 0.25rem 0.625rem;
  background-color: var(--accent-primary);
  color: white;
  border-radius: var(--border-radius-sm);
}
/* ===================================
   CONTACT SECTION - CLEAN FONT AWESOME VERSION
   =================================== */

.contact-intro {
  margin-bottom: var(--spacing-xl);
}

.contact-intro p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

.contact-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  max-width: 900px;
  margin: 0 auto;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-base);
  min-height: 100px;
}

.contact-method:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.method-icon {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
}

.method-icon i {
  font-size: 1.3rem;
  color: var(--accent-primary);
}

.method-info {
  flex: 1;
}

.method-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.method-info p {
  font-size: 0.9rem;
  color: var(--accent-primary);
  margin: 0;
}
/* ===================================
   RESPONSIVE DESIGN - MOBILE
   =================================== */

/* Download Notification */
.download-notification {
  position: fixed;
  bottom: -100px;
  right: var(--spacing-lg);
  background-color: var(--accent-primary);
  color: white;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 10000;
  transition: bottom var(--transition-base);
  font-weight: 500;
}

.download-notification.show {
  bottom: var(--spacing-lg);
}

.notification-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.notification-icon {
  font-size: var(--font-size-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
}

.notification-text {
  font-size: var(--font-size-base);
}

@media (max-width: 768px) {
  .sidebar {
    width: 100%;
    height: auto;
    position: fixed;
    bottom: 0;
    top: auto;
    border-right: none;
    border-top: 1px solid var(--border-color);
    padding: 0;
    z-index: 1000;
  }
  
  .nav-menu {
    flex-direction: row;
    padding: var(--spacing-xs);
  }
  
  .nav-item {
    flex: 1;
    padding: var(--spacing-sm);
  }
  
  .nav-item.active::before {
    display: none;
  }
  
  .nav-icon {
    font-size: 1.25rem;
  }
  
  .nav-label {
    font-size: 0.5rem;
  }
  
  .content-area {
    margin-left: 0;
    margin-bottom: 80px;
    padding: var(--spacing-md);
  }
  
  .profile-container {
    flex-direction: column;
    text-align: center;
  }
  
  .profile-name {
    font-size: var(--font-size-2xl);
  }
  
  .info-cards {
    grid-template-columns: 1fr;
  }
  
  .timeline-header {
    flex-direction: column;
  }
  
  .cert-gallery {
    grid-template-columns: 1fr;
  }
}

/* ===================================
   RESPONSIVE DESIGN - TABLET
   =================================== */

@media (min-width: 769px) and (max-width: 1024px) {
  .competencies-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cert-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}
/* Certificate Modal Styles */
.cert-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  box-sizing: border-box;
}

.cert-modal.active {
  display: flex;
}

.cert-modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
}

.cert-modal-content {
  position: relative;
  background: var(--card-bg);
  border-radius: 12px;
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
}

.cert-modal-close {
  position: absolute;
  top: 15px;
  right: 15px;
  background: rgba(0, 0, 0, 0.5);
  border: none;
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 24px;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-modal-image {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  min-height: 300px;
}

.cert-modal-image img {
  max-width: 100%;
  max-height: 400px;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.cert-placeholder-large {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  color: var(--text-secondary);
  text-align: center;
}

.cert-icon-large {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.cert-modal-info {
  padding: 20px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.cert-modal-title {
  margin: 0 0 8px 0;
  color: var(--text-primary);
  font-size: 1.4rem;
}

.cert-modal-issuer {
  margin: 0 0 20px 0;
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.cert-modal-actions {
  display: flex;
  gap: 10px;
}

.cert-modal-btn {
  padding: 10px 20px;
  background: var(--accent-primary);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: background 0.2s ease;
}

.cert-modal-btn:hover {
  background: var(--accent-primary-dark);
}

/* Download Notification */
.download-notification {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--success-color);
  color: white;
  padding: 12px 20px;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 1000;
}

.download-notification.show {
  transform: translateY(0);
  opacity: 1;
}

.notification-content {
  display: flex;
  align-items: center;
  gap: 10px;
}

.notification-icon {
  font-weight: bold;
}

/* Responsive modal */
@media (max-width: 768px) {
  .cert-modal-content {
    flex-direction: column;
    max-height: 95vh;
  }
  
  .cert-modal-image {
    min-height: 200px;
  }
  
  .cert-modal-image img {
    max-height: 300px;
  }
}
.cert-icon-large {
  font-size: 4rem;
  margin-bottom: 1rem;
}
/* ===================================
   CENTERED LAYOUT
   =================================== */

/* Hide sidebar and adjust main container */
.sidebar {
    display: none;
}

.main-container {
    display: block;
    min-height: 100vh;
}

.content-area {
    margin-left: 0;
    padding: 0;
    max-width: none;
}

/* Centered Header */
.centered-header {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem 2rem;
    text-align: center;
}

.centered-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

/* Centered Navigation */
.centered-nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    padding: 0 2rem;
}

.centered-nav-item {
    background: none;
    border: none;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    border-radius: 8px;
    font-size: 0.9rem;
}

.centered-nav-item.active {
    color: var(--primary-color);
    background: var(--card-bg);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.centered-nav-item:hover {
    color: var(--accent-primary);
    transform: translateY(-2px);
}

/* Centered Content */
.centered-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Center align hero elements */
.profile-container {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
}

.profile-info {
    align-items: center;
}

.social-links {
    justify-content: center;
}

.info-cards {
    justify-content: center;
    max-width: 800px;
    margin: 0 auto;
}

/* Center section headings */
.section-heading {
    text-align: center;
}

.section-heading::after {
    left: 50%;
    transform: translateX(-50%);
}

/* Center portfolio tabs */
.portfolio-tabs {
    justify-content: center;
}

/* Center contact methods */
.contact-methods {
    justify-content: center;
    max-width: 800px;
    margin: 0 auto;
}

/* Center competencies grid */
.competencies-grid {
    justify-content: center;
}

/* Center timeline */
.timeline {
    margin: 0 auto;
    max-width: 800px;
}

/* Center certificate gallery */
.cert-gallery {
    justify-content: center;
}

/* Responsive adjustments for centered layout */
@media (max-width: 768px) {
    .centered-header {
        padding: 2rem 1rem 1rem;
    }
    
    .centered-nav {
        gap: 1rem;
        padding: 0 1rem;
    }
    
    .centered-nav-item {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .centered-content {
        padding: 0 1rem;
    }
    
    .info-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .centered-nav {
        gap: 0.5rem;
    }
    
    .centered-nav-item {
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
    }
}
/* ===================================
   CENTERED LAYOUT
   =================================== */

/* Hide sidebar and adjust main container */
.sidebar {
    display: none;
}

.main-container {
    display: block;
    min-height: 100vh;
}

.content-area {
    margin-left: 0;
    padding: 0;
    max-width: none;
}

/* Centered Header */
.centered-header {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem 2rem;
    text-align: center;
}

.centered-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

/* Centered Navigation */
.centered-nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    padding: 0 2rem;
}

.centered-nav-item {
    background: none;
    border: none;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    border-radius: 8px;
    font-size: 0.9rem;
}

.centered-nav-item.active {
    color: var(--accent-primary);
    background: var(--bg-secondary);
    box-shadow: var(--shadow-sm);
}

.centered-nav-item:hover {
    color: var(--accent-primary);
    transform: translateY(-2px);
}

/* Centered Content */
.centered-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
}

/* Center align hero elements */
.profile-container {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.profile-info {
    align-items: center;
}

.social-links {
    justify-content: center;
}

.info-cards {
    justify-content: center;
    max-width: 800px;
    margin: 0 auto;
}

/* Center section headings */
.section-heading {
    text-align: center;
}

.section-heading::after {
    left: 50%;
    transform: translateX(-50%);
}

/* Center portfolio tabs */
.portfolio-tabs {
    justify-content: center;
}

/* Center contact methods */
.contact-methods {
    justify-content: center;
    max-width: 800px;
    margin: 0 auto;
}

/* Center competencies grid */
.competencies-grid {
    justify-content: center;
}

/* Center timeline */
.timeline {
    margin: 0 auto;
    max-width: 800px;
}

/* Center certificate gallery */
.cert-gallery {
    justify-content: center;
}

/* Responsive adjustments for centered layout */
@media (max-width: 768px) {
    .centered-header {
        padding: 2rem 1rem 1rem;
    }
    
    .centered-nav {
        gap: 1rem;
        padding: 0 1rem;
    }
    
    .centered-nav-item {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .centered-content {
        padding: 0 1rem 2rem;
    }
    
    .info-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .centered-nav {
        gap: 0.5rem;
    }
    
    .centered-nav-item {
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
    }
}
/* ===================================
   SIDEBAR PROFILE LAYOUT
   =================================== */

.profile-section {
    display: flex;
    align-items: center;
    gap: 3rem;
    margin-bottom: 3rem;
    text-align: left;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.profile-image-side {
    flex-shrink: 0;
}

.profile-image-side img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 4px solid var(--accent-primary);
    object-fit: cover;
    box-shadow: var(--shadow-lg);
}

.profile-content {
    flex: 1;
}

.profile-content .profile-name {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.05em;
}

.profile-content .profile-title {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.profile-content .social-links {
    justify-content: flex-start;
}

/* Info Cards Layout */
.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.info-card {
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    transition: all var(--transition-base);
    text-align: center;
}

.info-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.info-label {
    font-size: 0.625rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.info-value {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--accent-primary);
    transition: color var(--transition-fast);
}

.info-value:hover {
    color: var(--accent-hover);
}

.status-available {
    color: #09ecd9;
}

/* Responsive adjustments for sidebar profile */
@media (max-width: 768px) {
    .profile-section {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    .profile-content .social-links {
        justify-content: center;
    }
    
    .profile-image-side img {
        width: 120px;
        height: 120px;
    }
    
    .profile-content .profile-name {
        font-size: var(--font-size-2xl);
    }
    
    .info-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .info-cards {
        grid-template-columns: 1fr;
    }
    
    .profile-section {
        gap: 1.5rem;
    }
}
/* ===================================
   INFO CARDS GRID FIX
   =================================== */

.info-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.info-card {
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    transition: all var(--transition-base);
    text-align: center;
    min-height: 80px;
    justify-content: center;
}

.info-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Ensure all info cards have equal height and alignment */
.info-label {
    font-size: 0.625rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.25rem;
}

.info-value {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--accent-primary);
    transition: color var(--transition-fast);
    line-height: 1.4;
}

.info-value:hover {
    color: var(--accent-hover);
}

.status-available {
    color: #10b981;
}

/* ===================================
   CONTACT METHODS GRID FIX
   =================================== */


/* ===================================
   RESPONSIVE FIXES
   =================================== */

@media (max-width: 768px) {
    .info-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .contact-methods {
        grid-template-columns: 1fr;
    }
    
    .contact-method {
        min-height: 80px;
        padding: var(--spacing-md);
    }
    
    .method-icon {
        font-size: 2rem;
        width: 50px;
    }
}

@media (max-width: 480px) {
    .info-cards {
        grid-template-columns: 1fr;
    }
    
    .info-card {
        min-height: 70px;
        padding: var(--spacing-sm);
    }
    
    .contact-method {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
        min-height: auto;
    }
    
    .method-icon {
        width: auto;
    }
}
.theme-icon {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

.theme-toggle:hover .theme-icon {
  transform: rotate(180deg);
}
.profile-container .profile-image img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 4px solid #9ca3af !important;
  object-fit: cover;
  box-shadow: var(--shadow-lg);
  
  /* Anti-pixelation fixes */
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  image-rendering: high-quality;
  -ms-interpolation-mode: bicubic;
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* Force clear cache for testing */
.profile-image img[src*="profile.jpg"] {
  transform: translateZ(0);
}
/* Fix contact method compact layout */
.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
    height: auto;
    min-height: auto;
}

.method-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
}

.method-icon i {
    font-size: 1.1rem;
    color: var(--accent-primary);
}

.method-info {
    flex: 1;
}

.method-info h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.method-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Make contact methods grid compact */
.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}
.cert-btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--accent-primary);
    color: white;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-base);
    text-align: center;
    text-decoration: none; /* Remove underline from links */
}

.cert-btn:hover {
    background-color: var(--accent-hover);
    transform: scale(1.05);
    color: white;
    text-decoration: none; /* Ensure no underline on hover */
}
/* ===================================
   PROJECT LINKS STYLING - CLEAN CENTERED LINK
   =================================== */

.project-links {
    display: flex;
    justify-content: center;
    margin-top: 1.5rem;
}

.project-link {
    display: inline-block;
    padding: 0.75rem 2rem;
    color: var(--accent-primary);
    border: 2px solid var(--accent-primary);
    border-radius: var(--border-radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
    text-align: center;
}

.project-link:hover {
    background-color: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Keep the rest of your project card styles */
.project-card {
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    text-align: center;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.project-card h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.project-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: 0;
    justify-content: center;
}

/* ===================================
   PRIVATE ANALYTICS DASHBOARD
   =================================== */

#admin-analytics {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 10000;
    font-family: var(--font-family);
}

.analytics-panel {
    background: var(--bg-primary);
    border: 2px solid var(--accent-primary);
    border-radius: 10px;
    padding: 15px;
    box-shadow: var(--shadow-lg);
    max-width: 300px;
    display: none;
}

.analytics-panel.show {
    display: block;
}

.analytics-panel h4 {
    margin-bottom: 15px;
    color: var(--accent-primary);
    font-size: 0.9rem;
}

.analytics-stats {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.analytics-toggle {
    position: fixed;
    bottom: 20px;
    left: 20px;
    width: 40px;
    height: 40px;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10001;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}