/* ==========================================================================
   CHANDAN KUMAR - DEVOPS & CLOUD PORTFOLIO
   Design System & Styling
   Palette:
     Background:       #0B1120
     Cards:            #111827
     Primary Accent:   #38BDF8 (Sky Blue)
     Secondary Accent: #A78BFA (Violet)
     Text Primary:     #F1F5F9
     Text Muted:       #94A3B8
   ========================================================================== */

/* --- CSS Variables / Design Tokens --- */
:root {
  --bg-primary: #0B1120;
  --bg-secondary: #0F172A;
  --card-bg: #111827;
  --card-bg-elevated: #1E293B;
  --card-border: rgba(255, 255, 255, 0.08);
  --card-border-hover: rgba(56, 189, 248, 0.35);

  --accent-primary: #38BDF8;
  --accent-secondary: #A78BFA;
  --accent-cyan: #22D3EE;
  --accent-emerald: #34D399;
  --accent-amber: #FBBF24;

  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-dark: #64748B;

  --font-heading: 'Space Grotesk', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-glow-blue: 0 0 25px rgba(56, 189, 248, 0.25);
  --shadow-glow-violet: 0 0 25px rgba(167, 139, 250, 0.25);

  --transition-fast: 0.18s ease;
  --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --max-width: 1180px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  color-scheme: dark;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

/* --- Ambient Glow Accents (Subtle gradients) --- */
.ambient-glow {
  position: fixed;
  width: 650px;
  height: 650px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(140px);
  opacity: 0.18;
}

.glow-top-left {
  top: -200px;
  left: -200px;
  background: radial-gradient(circle, var(--accent-primary) 0%, transparent 70%);
}

.glow-top-right {
  top: -150px;
  right: -200px;
  background: radial-gradient(circle, var(--accent-secondary) 0%, transparent 70%);
}

.glow-bottom-center {
  bottom: -250px;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--accent-primary) 0%, transparent 70%);
  opacity: 0.12;
}

/* --- Layout Container & Typography --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  position: relative;
  z-index: 1;
}

.section-padding {
  padding-top: 5.5rem;
  padding-bottom: 5.5rem;
}

.bg-alt {
  background-color: rgba(15, 23, 42, 0.45);
  border-top: 1px solid rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

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

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem auto;
}

.section-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-primary);
  margin-bottom: 0.6rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 0.85rem;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Card Base --- */
.card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-subtle);
  transition: border-color var(--transition-smooth), transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

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

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-smooth);
  border: none;
  outline: none;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary) 0%, #2563EB 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 18px rgba(56, 189, 248, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(56, 189, 248, 0.5);
  color: #FFFFFF;
}

.btn-secondary {
  background: rgba(30, 41, 59, 0.7);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(51, 65, 85, 0.8);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.btn-sm {
  font-size: 0.85rem;
  padding: 0.55rem 1.15rem;
}

.btn-arrow, .btn-icon, .btn-icon-sm {
  width: 1.15rem;
  height: 1.15rem;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
  transform: translateX(3px);
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.navbar-wrapper {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background-color: rgba(11, 17, 32, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background-color var(--transition-fast);
}

.navbar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
}

.brand-bracket {
  color: var(--accent-primary);
}

.brand-name {
  color: var(--text-primary);
  margin: 0 0.15rem;
}

.brand-dot {
  color: var(--accent-secondary);
}

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

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.35rem 0;
  transition: color var(--transition-fast);
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  border-radius: var(--radius-full);
}

.nav-contact-btn {
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(56, 189, 248, 0.35);
  background: rgba(56, 189, 248, 0.08);
  color: var(--accent-primary) !important;
  transition: all var(--transition-fast);
}

.nav-contact-btn:hover {
  background: var(--accent-primary);
  color: #0B1120 !important;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  flex-direction: column;
  gap: 5px;
  z-index: 101;
}

.hamburger-bar {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--transition-fast);
  border-radius: 2px;
}

.menu-toggle.active .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle.active .hamburger-bar:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding-top: 4.5rem;
  padding-bottom: 5.5rem;
  position: relative;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.25fr 0.9fr;
  align-items: center;
  gap: 4rem;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.35rem 0.95rem;
  border-radius: var(--radius-full);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--accent-primary);
  margin-bottom: 1.3rem;
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse-indicator 2.2s infinite;
}

@keyframes pulse-indicator {
  0% { transform: scale(0.95); opacity: 0.7; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.7; }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.4rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 0.8rem;
}

.hero-tagline {
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.4;
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.8rem;
  max-width: 580px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 2.2rem;
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.tech-badge:hover {
  border-color: var(--accent-primary);
  background: rgba(56, 189, 248, 0.12);
  transform: translateY(-2px);
}

.badge-icon {
  width: 0.95rem;
  height: 0.95rem;
  color: var(--accent-primary);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
}

/* Hero Profile Image */
.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.image-glow-ring {
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.35) 0%, rgba(167, 139, 250, 0.2) 60%, transparent 80%);
  filter: blur(28px);
  z-index: 0;
  animation: glow-pulse 4s ease-in-out infinite alternate;
}

@keyframes glow-pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  100% { transform: scale(1.06); opacity: 1; }
}

.profile-card {
  position: relative;
  z-index: 1;
  width: 310px;
  height: 310px;
  border-radius: 50%;
  padding: 7px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.8), rgba(167, 139, 250, 0.6));
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), 0 0 35px rgba(56, 189, 248, 0.28);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.profile-card:hover {
  transform: scale(1.02);
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.6), 0 0 45px rgba(56, 189, 248, 0.45);
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
  background-color: var(--card-bg);
}

.floating-badge {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  background: rgba(17, 24, 39, 0.88);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  white-space: nowrap;
}

.badge-float-top {
  top: 15px;
  right: -20px;
  border-color: rgba(56, 189, 248, 0.35);
}

.badge-float-bottom {
  bottom: 20px;
  left: -20px;
  border-color: rgba(167, 139, 250, 0.35);
}

.float-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-primary);
}

/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 2rem;
}

.about-bio-card {
  padding: 2.2rem;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 600;
  margin-bottom: 1.2rem;
  color: var(--text-primary);
}

.bio-text {
  color: var(--text-secondary);
  font-size: 0.98rem;
  margin-bottom: 1.1rem;
  line-height: 1.7;
}

.sub-heading {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 1.6rem 0 1rem 0;
}

.edu-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.edu-item {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
}

.edu-bullet {
  width: 8px;
  height: 8px;
  margin-top: 0.5rem;
  border-radius: 50%;
  background-color: var(--accent-primary);
  box-shadow: 0 0 8px var(--accent-primary);
  flex-shrink: 0;
}

.edu-info {
  display: flex;
  flex-direction: column;
}

.edu-degree {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.edu-institution {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.interests-container {
  margin-top: 1.8rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.interests-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-dark);
  margin-bottom: 0.7rem;
}

.interests-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.pill-tag {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 500;
  background: rgba(167, 139, 250, 0.1);
  color: var(--accent-secondary);
  border: 1px solid rgba(167, 139, 250, 0.25);
}

/* 3 Focus Feature Cards */
.about-features-col {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.feature-card {
  padding: 1.8rem;
  display: flex;
  gap: 1.3rem;
  align-items: flex-start;
}

.feature-card:hover {
  transform: translateY(-3px);
}

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-icon-wrapper svg {
  width: 24px;
  height: 24px;
}

.icon-violet {
  background: rgba(167, 139, 250, 0.12);
  color: var(--accent-secondary);
  border: 1px solid rgba(167, 139, 250, 0.25);
}

.icon-blue {
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-primary);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.icon-cyan {
  background: rgba(34, 211, 238, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(34, 211, 238, 0.25);
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.feature-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   SKILLS SECTION
   ========================================================================== */
.skills-legend {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.8rem;
  margin-bottom: 2.8rem;
  padding: 0.9rem 1.6rem;
  background: rgba(17, 24, 39, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-full);
  max-width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.status-practiced {
  background-color: var(--accent-primary);
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.6);
}

.status-learning {
  background-color: var(--accent-secondary);
  box-shadow: 0 0 8px rgba(167, 139, 250, 0.6);
}

.status-exploring {
  background-color: var(--accent-amber);
  box-shadow: 0 0 8px rgba(251, 191, 36, 0.5);
}

.skills-categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.skill-category-card {
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
}

.category-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.category-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.category-icon {
  color: var(--accent-primary);
  width: 1.2rem;
  height: 1.2rem;
}

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

.skill-chip {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.55rem;
  padding: 0.42rem 0.85rem;
  border-radius: var(--radius-sm);
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.88rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.skill-chip:hover {
  background: rgba(30, 41, 59, 0.9);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.skill-name {
  color: var(--text-primary);
}

.skill-status-pill {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

.skill-status-pill.practiced {
  background: rgba(56, 189, 248, 0.14);
  color: var(--accent-primary);
  border: 1px solid rgba(56, 189, 248, 0.28);
}

.skill-status-pill.learning {
  background: rgba(167, 139, 250, 0.14);
  color: var(--accent-secondary);
  border: 1px solid rgba(167, 139, 250, 0.28);
}

.skill-status-pill.exploring {
  background: rgba(251, 191, 36, 0.14);
  color: var(--accent-amber);
  border: 1px solid rgba(251, 191, 36, 0.28);
}

/* ==========================================================================
   PROJECTS SECTION
   ========================================================================== */
.project-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.filter-btn {
  background: rgba(17, 24, 39, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

.filter-btn.active {
  background: rgba(56, 189, 248, 0.14);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  font-weight: 600;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.8rem;
}

.project-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  position: relative;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(56, 189, 248, 0.15);
}

.project-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.1rem;
}

.project-folder-icon {
  width: 32px;
  height: 32px;
  color: var(--accent-primary);
}

.project-status-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.22rem 0.65rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.project-status-badge.completed {
  background: rgba(52, 211, 153, 0.12);
  color: var(--accent-emerald);
  border: 1px solid rgba(52, 211, 153, 0.3);
}

.project-status-badge.practiced {
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-primary);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.project-status-badge.in-progress {
  background: rgba(251, 191, 36, 0.12);
  color: var(--accent-amber);
  border: 1px solid rgba(251, 191, 36, 0.3);
}

.project-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.7rem;
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.4rem;
  flex-grow: 1;
}

.project-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.6rem;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  background: rgba(30, 41, 59, 0.7);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.project-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 1.1rem;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.project-link:hover {
  color: var(--accent-primary);
}

.project-link svg {
  width: 1.05rem;
  height: 1.05rem;
}

/* ==========================================================================
   DEVOPS LEARNING JOURNEY TIMELINE
   ========================================================================== */
.timeline-wrapper {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  padding: 1rem 0;
}

.timeline-spine {
  position: absolute;
  top: 15px;
  bottom: 25px;
  left: 24px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-primary) 0%, var(--accent-secondary) 70%, rgba(167, 139, 250, 0.1) 100%);
  border-radius: var(--radius-full);
}

.timeline-items {
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
}

.timeline-node {
  position: relative;
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.timeline-marker {
  position: relative;
  z-index: 2;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--card-bg);
  border: 2px solid var(--accent-primary);
  color: var(--accent-primary);
  font-weight: 700;
  font-family: var(--font-heading);
  flex-shrink: 0;
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.25);
}

.timeline-node.completed .timeline-marker {
  border-color: var(--accent-primary);
  background-color: rgba(56, 189, 248, 0.12);
  color: var(--accent-primary);
}

.timeline-node.in-progress .timeline-marker {
  border-color: var(--accent-secondary);
  background-color: rgba(167, 139, 250, 0.16);
  color: var(--accent-secondary);
  box-shadow: 0 0 20px rgba(167, 139, 250, 0.45);
  animation: pulse-marker 2s infinite;
}

@keyframes pulse-marker {
  0% { transform: scale(1); }
  50% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

.timeline-node.learning .timeline-marker,
.timeline-node.planned .timeline-marker {
  border-color: rgba(255, 255, 255, 0.2);
  background-color: var(--bg-secondary);
  color: var(--text-dark);
  box-shadow: none;
}

.timeline-content-card {
  flex-grow: 1;
  padding: 1.6rem 2rem;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.timeline-stage {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.timeline-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

.timeline-badge.completed {
  background: rgba(52, 211, 153, 0.12);
  color: var(--accent-emerald);
  border: 1px solid rgba(52, 211, 153, 0.25);
}

.timeline-badge.in-progress {
  background: rgba(167, 139, 250, 0.14);
  color: var(--accent-secondary);
  border: 1px solid rgba(167, 139, 250, 0.3);
}

.timeline-badge.learning {
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-primary);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.timeline-badge.planned {
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-secondary);
  border: 1px solid rgba(148, 163, 184, 0.25);
}

.timeline-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.timeline-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.timeline-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-container {
  max-width: 900px;
}

.contact-card {
  padding: 3.5rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
}

.contact-title {
  font-family: var(--font-heading);
  font-size: 2.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.1rem;
}

.contact-message {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 680px;
  margin: 0 auto 2.5rem auto;
}

.contact-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
  margin-bottom: 2.8rem;
  text-align: left;
}

.contact-method-card {
  background: rgba(30, 41, 59, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all var(--transition-smooth);
  position: relative;
}

.contact-method-card:hover {
  background: rgba(30, 41, 59, 0.85);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.method-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.method-icon-box svg {
  width: 22px;
  height: 22px;
}

.method-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.method-label {
  font-size: 0.75rem;
  color: var(--text-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.method-value {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-external-arrow {
  margin-left: auto;
  font-size: 1.2rem;
  color: var(--text-dark);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.contact-method-card:hover .card-external-arrow {
  color: var(--accent-primary);
  transform: translate(2px, -2px);
}

.btn-copy {
  margin-left: auto;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-dark);
  padding: 0.4rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: color var(--transition-fast);
}

.btn-copy:hover {
  color: var(--accent-primary);
}

.copy-icon {
  width: 1.2rem;
  height: 1.2rem;
}

.copy-tooltip {
  position: absolute;
  top: -30px;
  right: 0;
  background: var(--accent-emerald);
  color: #0B1120;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.copy-tooltip.show {
  opacity: 1;
  visibility: visible;
  top: -36px;
}

.contact-actions {
  display: flex;
  justify-content: center;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 2.5rem 0;
  background-color: var(--bg-primary);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.footer-text strong {
  color: var(--text-primary);
}

.footer-subtext {
  font-size: 0.8rem;
  color: var(--text-dark);
  margin-top: 0.2rem;
}

.back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all var(--transition-fast);
}

.back-to-top:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.back-to-top svg {
  width: 1rem;
  height: 1rem;
}

/* ==========================================================================
   MODAL DIALOG (ADD PROJECT)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(11, 17, 32, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.2rem;
  position: relative;
  background-color: var(--card-bg);
  border: 1px solid rgba(56, 189, 248, 0.25);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  transform: scale(0.96) translateY(10px);
  transition: transform var(--transition-smooth);
}

.modal-backdrop.open .modal-card {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.6rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.modal-heading {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.8rem;
  color: var(--text-secondary);
  cursor: pointer;
  line-height: 1;
  padding: 0 0.3rem;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--accent-primary);
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
  background-color: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.9rem;
  color: var(--text-primary);
  font-size: 0.92rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.2);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.9rem;
  margin-top: 1.2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* ==========================================================================
   RESPONSIVE DESIGN (TABLETS & MOBILE)
   ========================================================================== */
@media (max-width: 992px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3.5rem;
  }

  .hero-content {
    align-items: center;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-badges, .hero-cta {
    justify-content: center;
  }

  .hero-image-wrapper {
    order: -1;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .section-padding {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  .hero-title {
    font-size: 2.6rem;
  }

  .hero-tagline {
    font-size: 1.15rem;
  }

  .profile-card {
    width: 250px;
    height: 250px;
  }

  .image-glow-ring {
    width: 260px;
    height: 260px;
  }

  .floating-badge {
    padding: 0.45rem 0.8rem;
    font-size: 0.75rem;
  }

  .badge-float-top {
    right: -10px;
  }

  .badge-float-bottom {
    left: -10px;
  }

  /* Mobile Navbar */
  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    background-color: rgba(11, 17, 32, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transform: translateY(-150%);
    transition: transform var(--transition-smooth);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  }

  .nav-menu.open {
    transform: translateY(0);
  }

  .nav-link {
    font-size: 1.1rem;
  }

  .timeline-spine {
    left: 19px;
  }

  .timeline-node {
    gap: 1.2rem;
  }

  .timeline-marker {
    width: 40px;
    height: 40px;
    font-size: 0.85rem;
  }

  .timeline-content-card {
    padding: 1.4rem;
  }

  .contact-card {
    padding: 2.5rem 1.5rem;
  }

  .contact-title {
    font-size: 1.8rem;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.15rem;
  }

  .profile-card {
    width: 210px;
    height: 210px;
  }

  .hero-cta {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .skills-legend {
    flex-direction: column;
    align-items: flex-start;
    border-radius: var(--radius-md);
  }

  .project-filters {
    justify-content: center;
  }
}