/* -------------------------------------------------------------
   KUMUDASHREE G - PORTFOLIO STYLESHEET (GLASSMORPHISM & DARK GLOW)
   ------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  --bg-dark: #090d16;
  --bg-card: rgba(18, 26, 43, 0.65);
  --bg-card-hover: rgba(28, 39, 64, 0.8);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 242, 254, 0.3);
  
  --primary-cyan: #00f2fe;
  --primary-blue: #4facfe;
  --accent-purple: #7f00ff;
  --accent-pink: #e100ff;
  
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-sub: #cbd5e1;
  
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --glass-blur: blur(16px);
  --shadow-main: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px rgba(0, 242, 254, 0.25);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Background Ambient Orbs */
.ambient-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.35;
}

.orb-1 {
  width: 450px;
  height: 450px;
  background: var(--primary-cyan);
  top: -100px;
  left: -100px;
  animation: float 14s ease-in-out infinite alternate;
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: var(--accent-purple);
  bottom: 10%;
  right: -150px;
  animation: float 18s ease-in-out infinite alternate-reverse;
}

.orb-3 {
  width: 350px;
  height: 350px;
  background: var(--primary-blue);
  top: 40%;
  left: 30%;
  animation: float 12s ease-in-out infinite alternate;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(40px, 60px) scale(1.1); }
}

/* Typography & Utilities */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: #fff;
  line-height: 1.2;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-blue) 50%, var(--accent-pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

.section-title-wrap {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--primary-cyan);
  background: rgba(0, 242, 254, 0.1);
  padding: 0.35rem 1rem;
  border-radius: 50px;
  border: 1px solid rgba(0, 242, 254, 0.2);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
}

/* Header & Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition);
  padding: 1.25rem 0;
}

.navbar.scrolled {
  background: rgba(9, 13, 22, 0.85);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 0;
  box-shadow: 0 10px 20px rgba(0,0,0,0.3);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  text-decoration: none;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

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

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

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

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

.nav-btn {
  background: linear-gradient(135deg, var(--primary-cyan), var(--primary-blue));
  color: #090d16;
  font-weight: 700;
  padding: 0.55rem 1.3rem;
  border-radius: 50px;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 6rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--text-sub);
  margin-bottom: 1.5rem;
  backdrop-filter: blur(10px);
}

.hero-badge i {
  color: var(--primary-cyan);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--primary-cyan);
  margin-bottom: 1.25rem;
}

.hero-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-cyan), var(--primary-blue));
  color: #090d16;
  font-weight: 700;
  padding: 0.85rem 1.8rem;
  border-radius: 50px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 242, 254, 0.35);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  font-weight: 600;
  padding: 0.85rem 1.8rem;
  border-radius: 50px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  font-size: 1rem;
  cursor: pointer;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--primary-cyan);
  color: #fff;
  transform: translateY(-3px);
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.stat-item h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-cyan);
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Hero Avatar Frame */
.hero-image-wrap {
  position: relative;
  display: flex;
  justify-content: center;
}

.avatar-card {
  position: relative;
  width: 100%;
  max-width: 360px;
  border-radius: 24px;
  padding: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-main);
  transition: var(--transition);
}

.avatar-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
  transform: translateY(-5px);
}

.avatar-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  border-radius: 16px;
  display: block;
}

.experience-tag {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(18, 26, 43, 0.95);
  border: 1px solid var(--primary-cyan);
  padding: 0.6rem 1.4rem;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: 0 10px 20px rgba(0,0,0,0.4);
  white-space: nowrap;
}

.experience-tag i {
  color: var(--primary-cyan);
  font-size: 1.2rem;
}

.experience-tag span {
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
}

/* Glass Card */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: var(--glass-blur);
  border-radius: 20px;
  padding: 2rem;
  transition: var(--transition);
}

.glass-card:hover {
  border-color: rgba(0, 242, 254, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

/* About & Education */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.info-list {
  list-style: none;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.info-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--text-sub);
}

.info-list i {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(0, 242, 254, 0.1);
  color: var(--primary-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
}

.edu-badge {
  display: inline-block;
  background: rgba(127, 0, 255, 0.15);
  color: #c084fc;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  margin-bottom: 0.75rem;
}

/* Skills Matrix */
.skills-filter {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-sub);
  padding: 0.6rem 1.3rem;
  border-radius: 50px;
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
  background: linear-gradient(135deg, var(--primary-cyan), var(--primary-blue));
  color: #090d16;
  font-weight: 700;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  backdrop-filter: var(--glass-blur);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.skill-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-cyan);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.skill-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary-cyan);
  flex-shrink: 0;
}

.skill-info {
  flex-grow: 1;
}

.skill-info h4 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.skill-level {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.skill-bar {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  margin-top: 0.5rem;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-cyan), var(--primary-blue));
  border-radius: 3px;
  width: 0%;
  transition: width 1s ease-in-out;
}

/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  overflow: hidden;
  backdrop-filter: var(--glass-blur);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 242, 254, 0.4);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 242, 254, 0.15);
}

.project-thumb {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-thumb img {
  transform: scale(1.08);
}

.project-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.project-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.tag {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--primary-cyan);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.25rem 0.7rem;
  border-radius: 50px;
}

.project-btn {
  background: rgba(0, 242, 254, 0.1);
  color: var(--primary-cyan);
  border: 1px solid rgba(0, 242, 254, 0.25);
  padding: 0.65rem 1.2rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.project-btn:hover {
  background: var(--primary-cyan);
  color: #090d16;
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

/* Timeline & Internships */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--primary-cyan), var(--accent-purple));
}

.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
}

.timeline-dot {
  position: absolute;
  left: -2.4rem;
  top: 0.25rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary-cyan);
  border: 4px solid var(--bg-dark);
  box-shadow: 0 0 10px var(--primary-cyan);
}

.timeline-date {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-cyan);
  margin-bottom: 0.35rem;
}

.timeline-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.timeline-company {
  color: var(--text-sub);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

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

/* Certifications Box */
.cert-card {
  max-width: 800px;
  margin: 2.5rem auto 0 auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.08), rgba(127, 0, 255, 0.08));
  border: 1px solid rgba(0, 242, 254, 0.25);
}

.cert-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary-cyan), var(--primary-blue));
  color: #090d16;
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2.5rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
  padding: 1.25rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.contact-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--primary-cyan);
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(0, 242, 254, 0.1);
  color: var(--primary-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-info h4 {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-info p, .contact-info a {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
}

.copy-btn {
  margin-left: auto;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--text-sub);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.copy-btn:hover {
  background: var(--primary-cyan);
  color: #090d16;
}

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

.form-group label {
  display: block;
  font-size: 0.9rem;
  color: var(--text-sub);
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  padding: 0.85rem 1.1rem;
  background: rgba(18, 26, 43, 0.8);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
}

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

/* Modal Window */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(5, 8, 15, 0.85);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  width: 100%;
  max-width: 700px;
  max-height: 90vh;
  overflow-y: auto;
  border-radius: 24px;
  padding: 2rem;
  position: relative;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.8);
  transform: translateY(20px);
  transition: var(--transition);
}

.modal-backdrop.active .modal-card {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  transition: var(--transition);
}

.modal-close:hover {
  background: #ff4757;
  color: #fff;
}

.modal-banner {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: 16px;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--primary-cyan);
  color: #090d16;
  font-weight: 700;
  padding: 0.9rem 1.5rem;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 242, 254, 0.4);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition);
  z-index: 3000;
}

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

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Media Queries */
@media (max-width: 992px) {
  .hero-grid, .about-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 2.75rem;
  }
  .hero-image-wrap {
    margin-top: 2rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: rgba(9, 13, 22, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transform: translateY(-150%);
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
  }
  .nav-links.mobile-open {
    transform: translateY(0);
  }
  .mobile-toggle {
    display: block;
  }
  .hero-stats {
    flex-wrap: wrap;
    gap: 1.5rem;
  }
}