/* 
  Data Analyst Portfolio - style.css
  Design: Sanketh - Dashboard Inspired Premium Dark Theme
*/

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

/* CSS Variables */
:root {
  --bg-color: #0F172A;
  --bg-grid: rgba(30, 41, 59, 0.3);
  --card-bg: rgba(30, 41, 59, 0.6);
  --card-hover-bg: rgba(30, 41, 59, 0.85);
  --card-border: rgba(255, 255, 255, 0.06);
  --card-border-hover: rgba(56, 189, 248, 0.3);
  --primary: #2563EB;
  --primary-glow: rgba(37, 99, 235, 0.35);
  --accent: #38BDF8;
  --accent-glow: rgba(56, 189, 248, 0.2);
  --text-main: #FFFFFF;
  --text-muted: #94A3B8;
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --glass-blur: blur(12px);
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--card-border) var(--bg-color);
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Subtle Animated Background Gradients */
body::before {
  content: '';
  position: fixed;
  top: -20%;
  left: -20%;
  width: 140%;
  height: 140%;
  background: radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.08) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(56, 189, 248, 0.08) 0%, transparent 40%),
              radial-gradient(circle at 50% 50%, rgba(30, 41, 59, 0.1) 0%, transparent 60%);
  z-index: -1;
  pointer-events: none;
  animation: bgGradientMove 25s infinite alternate ease-in-out;
}

@keyframes bgGradientMove {
  0% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-3%, 3%) scale(1.05);
  }
  100% {
    transform: translate(2%, -2%) scale(0.98);
  }
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

input, textarea, button {
  font-family: inherit;
  font-size: inherit;
  background: none;
  border: none;
  outline: none;
  color: inherit;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Reusable UI Components - Glassmorphism Card */
.glass-card {
  background: var(--card-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.glass-card:hover {
  border-color: var(--card-border-hover);
  box-shadow: 0 12px 30px -10px var(--primary-glow);
}

/* Section Common Header */
.section {
  padding: 100px 0 80px 0;
  position: relative;
}

.section-header {
  margin-bottom: 50px;
  text-align: left;
}

.section-label {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  display: inline-block;
  margin-bottom: 8px;
  padding-left: 12px;
  position: relative;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background-color: var(--accent);
  border-radius: 50%;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--text-main);
  box-shadow: 0 4px 14px 0 var(--primary-glow);
}

.btn-primary:hover {
  background-color: #3b82f6;
  box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--card-border);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--text-muted);
  transform: translateY(-2px);
}

.btn-icon {
  margin-left: 8px;
  display: inline-flex;
}

/* Sticky Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: var(--transition);
  display: flex;
  align-items: center;
}

.navbar.scrolled {
  height: 70px;
  background-color: rgba(15, 23, 42, 0.85);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--card-border);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
}

.logo span {
  color: var(--accent);
}

.logo-dot {
  width: 6px;
  height: 6px;
  background-color: var(--primary);
  border-radius: 50%;
  margin-left: 4px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
}

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

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

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: var(--transition);
}

/* Hero Section */
.hero-wrapper {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  min-height: calc(100vh - var(--nav-height));
  padding-top: var(--nav-height);
}

.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-tagline {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.hero-title span.name {
  color: var(--text-main);
  display: block;
}

.hero-title span.role {
  color: var(--primary);
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
}

.hero-image-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-image-card {
  width: 100%;
  max-width: 360px;
  aspect-ratio: 1;
  border-radius: 24px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: var(--glass-blur);
  padding: 12px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  position: relative;
}

.hero-image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 16px;
}

/* Stats dashboard overlay widget */
.stats-badge {
  position: absolute;
  bottom: -20px;
  left: 20px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-md);
  z-index: 5;
}

.stats-icon {
  background: var(--primary-glow);
  color: var(--accent);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stats-number {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-main);
  line-height: 1;
}

.stats-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* About Section */
.about-wrapper {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: flex-start;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 20px;
  font-size: 1.05rem;
}

.about-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.metric-card {
  padding: 24px;
  text-align: left;
}

.metric-num {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.1;
  margin-bottom: 4px;
}

.metric-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.5px;
}

/* Skills Section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.skill-category {
  height: 100%;
}

.skill-category-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--card-border);
  padding-bottom: 10px;
}

.skill-category-title i {
  color: var(--accent);
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.skill-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.03);
  transition: var(--transition);
}

.skill-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(56, 189, 248, 0.15);
  transform: translateX(4px);
}

.skill-name {
  font-weight: 500;
  font-size: 0.95rem;
}

.skill-type {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  background: rgba(148, 163, 184, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.project-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 16px;
}

.project-image {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.project-card:hover .project-image img {
  transform: scale(1.03);
}

.project-content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  padding: 0 8px 8px 8px;
}

.project-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-main);
}

.project-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.tech-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background-color: var(--accent-glow);
  padding: 4px 10px;
  border-radius: 6px;
  letter-spacing: 0.5px;
}

.project-actions {
  display: flex;
  gap: 12px;
}

.project-actions .btn {
  flex: 1;
  padding: 10px 16px;
  font-size: 0.85rem;
}

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

.timeline-card {
  padding: 32px;
}

.timeline-item {
  position: relative;
  padding-left: 32px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: -40px;
  width: 2px;
  background-color: var(--card-border);
}

.timeline-item:last-child::before {
  display: none;
}

.timeline-dot {
  position: absolute;
  left: -5px;
  top: 6px;
  width: 12px;
  height: 12px;
  background-color: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent);
}

.timeline-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 10px;
}

.timeline-period {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  background-color: var(--accent-glow);
  padding: 4px 12px;
  border-radius: 30px;
}

.timeline-institution {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.timeline-degree {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.timeline-score {
  font-size: 0.95rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  background: rgba(255, 255, 255, 0.02);
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  width: fit-content;
}

.timeline-score strong {
  color: var(--text-main);
}

/* Certifications Section */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

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

.cert-info {
  margin-bottom: 20px;
}

.cert-issuer {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.cert-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
  margin-bottom: 8px;
}

.cert-date {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.cert-btn {
  width: 100%;
  font-size: 0.85rem;
  padding: 10px 16px;
}

/* Contact Section */
.contact-wrapper {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 48px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-icon {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--accent);
  width: 46px;
  height: 46px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
}

.contact-item:hover .contact-icon {
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
  transform: translateY(-2px);
}

.contact-details {
  display: flex;
  flex-direction: column;
}

.contact-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 2px;
}

.contact-val {
  font-weight: 500;
  font-size: 0.95rem;
}

/* Contact Form styling */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-input {
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text-main);
  transition: var(--transition);
  font-size: 0.95rem;
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: rgba(15, 23, 42, 0.6);
}

textarea.form-input {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  align-self: flex-start;
  width: 100%;
}

.form-status {
  font-size: 0.9rem;
  padding: 10px;
  border-radius: 6px;
  display: none;
}

.form-status.success {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
  display: block;
}

.form-status.error {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
  display: block;
}

/* Footer styling */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--card-border);
  background-color: rgba(15, 23, 42, 0.5);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-text {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-developer {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-developer span {
  color: var(--text-main);
  font-weight: 500;
}

/* Scroll Reveal Classes */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--primary);
  color: var(--text-main);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 14px var(--primary-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 99;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent);
  box-shadow: 0 4px 14px var(--accent-glow);
  transform: translateY(-3px);
}

/* ==========================================================================
   Project Filtering & Dashboard Tabs
   ========================================================================= */
.projects-tabs {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.tab-btn {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  padding: 12px 28px;
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.tab-btn i {
  font-size: 1rem;
  transition: var(--transition);
}

.tab-btn:hover {
  border-color: var(--card-border-hover);
  color: var(--text-main);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.1);
}

.tab-btn.active {
  background: var(--primary);
  border-color: var(--accent);
  color: var(--text-main);
  box-shadow: 0 0 15px var(--primary-glow);
}

.tab-btn.active i {
  color: var(--text-main);
}

/* Adjustments for categorized cards filter animation */
.project-card {
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card.filtered-out {
  display: none !important;
  opacity: 0;
  transform: scale(0.9) translateY(20px);
}

.project-card.filtered-in {
  animation: projectFadeInUp 0.5s forwards cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes projectFadeInUp {
  from {
    display: none;
    opacity: 0;
    transform: scale(0.95) translateY(15px);
  }
  to {
    display: flex;
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Project Actions Layout Override */
.project-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: auto;
}

.btn-details {
  width: 100%;
  padding: 12px 20px;
  font-size: 0.9rem;
  background-color: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--accent);
}

.btn-details:hover {
  background-color: var(--accent);
  color: var(--bg-color);
  box-shadow: 0 0 15px var(--accent-glow);
  transform: translateY(-2px);
}

.project-links {
  display: flex;
  gap: 12px;
}

.project-links .btn {
  flex: 1;
  padding: 10px 16px;
  font-size: 0.85rem;
}

/* ==========================================================================
   Inline Validation Styles
   ========================================================================== */
.form-group {
  position: relative;
}

.error-message {
  font-size: 0.75rem;
  color: #f87171;
  margin-top: 4px;
  display: block;
  min-height: 16px;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(-4px);
}

.error-message.visible {
  opacity: 1;
  transform: translateY(0);
}

.form-input.invalid {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.form-input.invalid:focus {
  border-color: #f87171;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.35);
}

/* ==========================================================================
   Premium Glassmorphic Modals
   ========================================================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.modal-content {
  position: relative;
  width: 90%;
  max-width: 650px;
  max-height: 90vh;
  background: rgba(30, 41, 59, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  z-index: 2;
  overflow-y: auto;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  padding: 36px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}

.modal.active .modal-content {
  transform: scale(1) translateY(0);
}

/* Modal Close Button */
.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 2rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  z-index: 5;
  background: none;
  border: none;
}

.modal-close:hover {
  color: var(--text-main);
  transform: rotate(90deg);
}

/* Project Details Modal Layout */
.modal-project-header {
  margin-bottom: 20px;
}

.modal-project-category {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  display: inline-block;
  margin-bottom: 6px;
}

.modal-project-title {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
}

.modal-project-image {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
  margin-bottom: 24px;
}

.modal-project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-project-desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.modal-project-outcomes {
  margin-bottom: 24px;
}

.modal-project-outcomes h4,
.modal-project-tech h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 12px;
  font-weight: 600;
}

.modal-project-outcomes ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.modal-project-outcomes li {
  position: relative;
  padding-left: 20px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.modal-project-outcomes li::before {
  content: "→";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: bold;
}

.modal-project-tech {
  margin-bottom: 32px;
}

.modal-project-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.modal-project-actions .btn {
  flex: 1;
  min-width: 140px;
}

/* Feedback Modals (Success & Error Popups) */
.feedback-modal .modal-content {
  max-width: 480px;
  padding: 40px;
  text-align: center;
}

.feedback-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.feedback-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin-bottom: 24px;
  animation: feedbackPulse 2s infinite ease-in-out;
}

.success-icon {
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
}

.error-icon {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

@keyframes feedbackPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.2);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

.feedback-modal .error-icon {
  animation: errorPulse 2s infinite ease-in-out;
}

@keyframes errorPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.2);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(239, 68, 68, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
  }
}

.feedback-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-main);
}

.feedback-message {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 28px;
}

.feedback-message p {
  margin-bottom: 8px;
}

.feedback-message p:last-child {
  margin-bottom: 0;
}

.feedback-close-btn,
.feedback-retry-btn {
  width: 100%;
  padding: 12px 28px;
}

.feedback-actions {
  display: flex;
  gap: 12px;
  width: 100%;
}

.feedback-actions .btn {
  flex: 1;
}

/* Spinner for Loading State */
.fa-spinner {
  animation: fa-spin 1s linear infinite;
}

@keyframes fa-spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Responsive adjustments for new elements */
@media (max-width: 480px) {
  .modal-content {
    padding: 24px 16px;
  }
  .modal-project-title {
    font-size: 1.45rem;
  }
  .feedback-modal .modal-content {
    padding: 30px 16px;
  }
  .projects-tabs {
    gap: 8px;
    margin-bottom: 32px;
  }
  .tab-btn {
    padding: 8px 16px;
    font-size: 0.85rem;
  }
  .modal-project-actions {
    flex-direction: column;
    gap: 8px;
  }
  .modal-project-actions .btn {
    width: 100%;
  }
}

/* ==========================================================================
   Projects Category Cards & Modal Updates
   ========================================================================== */
.projects-categories-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 24px;
}

@media (max-width: 768px) {
  .projects-categories-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.category-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 20px;
  transition: var(--transition);
  cursor: default;
}

.category-card:hover {
  border-color: var(--card-border-hover);
  box-shadow: 0 10px 20px rgba(56, 189, 248, 0.08);
  transform: translateY(-4px);
}

.category-image {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.category-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.category-card:hover .category-image img {
  transform: scale(1.04);
}

.category-content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.category-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-main);
}

.category-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.category-meta {
  margin-bottom: 20px;
}

.project-count {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  background-color: var(--accent-glow);
  padding: 4px 10px;
  border-radius: 6px;
  letter-spacing: 0.5px;
}

.category-card .btn-view-projects {
  width: 100%;
  padding: 12px 20px;
  font-size: 0.9rem;
  margin-top: auto;
}

/* Modal Projects Listing */
.modal-projects-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 24px;
}

.modal-project-item {
  padding: 24px;
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 12px;
  transition: var(--transition);
}

.modal-project-item:hover {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(56, 189, 248, 0.2);
}

.modal-project-item-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--text-main);
  font-weight: 600;
  margin-bottom: 8px;
}

.modal-project-item-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.modal-project-item-outcomes {
  margin-bottom: 16px;
}

.modal-project-item-outcomes h5 {
  font-size: 0.9rem;
  color: var(--text-main);
  margin-bottom: 8px;
  font-weight: 600;
}

.modal-project-item-outcomes ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.modal-project-item-outcomes li {
  font-size: 0.9rem;
  color: var(--text-muted);
  position: relative;
  padding-left: 18px;
}

.modal-project-item-outcomes li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.modal-project-item-tech {
  margin-bottom: 20px;
}

.modal-project-item-actions {
  display: flex;
  gap: 12px;
}

.modal-project-item-actions .btn {
  flex: 1;
  padding: 10px 16px;
  font-size: 0.85rem;
}

/* Screenshot Lightbox Modal */
.screenshot-viewer-content {
  max-width: 800px !important;
  text-align: center;
}

.screenshot-gallery-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 12px;
  overflow: hidden;
  background: #090d16;
  border: 1px solid rgba(255, 255, 255, 0.05);
  margin-bottom: 16px;
}

.gallery-image-container {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-image-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.gallery-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  z-index: 10;
  backdrop-filter: blur(4px);
}

.gallery-arrow:hover {
  background: var(--primary);
  border-color: var(--accent);
  color: var(--text-main);
}

.prev-arrow {
  left: 16px;
}

.next-arrow {
  right: 16px;
}

.gallery-counter {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Certifications Section Styling */
.cert-thumbnail-container {
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
  background: rgba(15, 23, 42, 0.4);
}

.cert-thumbnail-container canvas.pdf-thumbnail {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.cert-thumbnail-container img.pdf-thumbnail-fallback,
.cert-thumbnail-container img.cert-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: var(--transition);
}

.cert-card:hover img.cert-image,
.cert-card:hover img.pdf-thumbnail-fallback {
  transform: scale(1.04);
}

.cert-thumbnail-container.pdf-loaded img.pdf-thumbnail-fallback {
  display: none;
}

.certificate-viewer-content {
  max-width: 800px !important;
}

.certificate-container {
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: 12px;
  overflow: hidden;
  background: #090d16;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.certificate-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.certificate-container img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}