/* ============================================
   ASWIN EDISON – Portfolio Stylesheet
   Author: Aswin.E
   Version: 1.0
   ============================================ */

/* ============ CSS CUSTOM PROPERTIES ============ */
:root {
  /* Color Palette */
  --bg-primary:    #0B1121;
  --bg-secondary:  #151F32;
  --bg-tertiary:   #0E1629;
  --primary:       #3B82F6;
  --primary-dark:  #2563EB;
  --secondary:     #0EA5E9;
  --accent:        #10B981;
  --accent-amber:  #F59E0B;
  --accent-purple: #8B5CF6;
  --text-primary:  #F8FAFC;
  --text-secondary:#E2E8F0;
  --text-muted:    #94A3B8;
  --border:        rgba(56, 189, 248, 0.2);
  --glass-bg:      rgba(15, 23, 42, 0.6);
  --glass-border:  rgba(56, 189, 248, 0.25);

  /* Gradients */
  --gradient-primary:  linear-gradient(135deg, #3B82F6, #0EA5E9);
  --gradient-accent:   linear-gradient(135deg, #10B981, #0EA5E9);
  --gradient-purple:   linear-gradient(135deg, #8B5CF6, #3B82F6);
  --gradient-hero:     linear-gradient(135deg, rgba(59,130,246,0.15), rgba(14,165,233,0.05));
  --gradient-text:     linear-gradient(135deg, #0EA5E9, #3B82F6, #10B981);

  /* Typography */
  --font-primary:  'Orbitron', sans-serif;
  --font-secondary:'Rajdhani', sans-serif;
  --font-mono:     'JetBrains Mono', monospace;

  /* Spacing */
  --section-padding: 6rem 0;
  --container-max:   1200px;
  --border-radius:   16px;
  --border-radius-sm:8px;
  --border-radius-lg:24px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-med:  0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows */
  --shadow-sm:  0 4px 12px rgba(0,0,0,0.4);
  --shadow-md:  0 12px 40px rgba(0,0,0,0.5);
  --shadow-lg:  0 24px 80px rgba(0,0,0,0.6);
  --shadow-glow:#3B82F6;
}

/* ============ LIGHT MODE OVERRIDE ============ */
body.light-mode {
  /* Backgrounds */
  --bg-primary:    #F8FAFC;
  --bg-secondary:  #FFFFFF;
  --bg-tertiary:   #F1F5F9;

  /* Text */
  --text-primary:  #0F172A;
  --text-secondary:#1E293B;
  --text-muted:    #475569;

  /* Accents stay vivid */
  --primary:       #2563EB;
  --primary-dark:  #1D4ED8;
  --secondary:     #0284C7;
  --accent:        #059669;

  /* Borders & Glass */
  --border:        rgba(37, 99, 235, 0.15);
  --glass-bg:      rgba(255, 255, 255, 0.9);
  --glass-border:  rgba(37, 99, 235, 0.2);

  /* Shadows */
  --shadow-sm:     0 4px 12px  rgba(15,23,42,0.06);
  --shadow-md:     0 12px 32px rgba(15,23,42,0.08);
  --shadow-lg:     0 24px 64px rgba(15,23,42,0.1);

  /* Gradients adjusted for light */
  --gradient-hero: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(2,132,199,0.04));
}

/* ============ RESET & BASE ============ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-secondary);
  font-size: 1.05rem;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  letter-spacing: 0.01em;
  transition: background-color var(--transition-med), color var(--transition-med);
}

img { max-width:100%; height:auto; display:block; }
a  { text-decoration:none; color:inherit; }
ul { list-style:none; }
button { cursor:pointer; border:none; background:none; }

/* ============ SCROLL PROGRESS ============ */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: var(--gradient-primary);
  z-index: 9999;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px rgba(37,99,235,0.6);
}

/* ============ LOADER ============ */
.loader {
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, #0d1b36 0%, #070e1f 60%, #020510 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  transition: opacity 0.8s cubic-bezier(0.4,0,0.2,1), visibility 0.8s ease;
  overflow: hidden;
}
.loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Starfield canvas */
.loader-stars {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* Orbital rings container */
.loader-orbitals {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.orbital {
  position: absolute;
  border-radius: 50%;
  border: 1px solid transparent;
  animation: orbitSpin linear infinite;
}
.orbital::after {
  content: '';
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  top: -5px; left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 12px 4px currentColor;
}
.orbital-1 {
  width: 280px; height: 280px;
  border-color: rgba(37,99,235,0.35);
  color: rgba(37,99,235,0.9);
  box-shadow: 0 0 30px rgba(37,99,235,0.08) inset;
  animation-duration: 5s;
}
.orbital-1::after { background: #2563EB; }

.orbital-2 {
  width: 360px; height: 360px;
  border-color: rgba(56,189,248,0.25);
  color: rgba(56,189,248,0.9);
  box-shadow: 0 0 30px rgba(56,189,248,0.06) inset;
  animation-duration: 8s;
  animation-direction: reverse;
}
.orbital-2::after { background: #38BDF8; width: 8px; height: 8px; top: -4px; box-shadow: 0 0 10px 3px #38BDF8; }

.orbital-3 {
  width: 450px; height: 450px;
  border-color: rgba(167,139,250,0.18);
  color: rgba(167,139,250,0.9);
  box-shadow: 0 0 30px rgba(167,139,250,0.04) inset;
  animation-duration: 12s;
}
.orbital-3::after { background: #A78BFA; width: 6px; height: 6px; top: -3px; box-shadow: 0 0 8px 2px #A78BFA; }

@keyframes orbitSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Central inner content */
.loader-inner {
  text-align: center;
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

/* Logo wrap with glow ring */
.loader-logo-wrap {
  position: relative;
  width: 160px;
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.8rem;
}

.loader-glow-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,0.18) 0%, transparent 70%);
  animation: glowPulse 2s ease-in-out infinite;
}
.loader-glow-ring::before,
.loader-glow-ring::after {
  content: '';
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  border: 1.5px solid rgba(56,189,248,0.3);
  animation: glowPulse 2s ease-in-out infinite alternate;
}
.loader-glow-ring::after {
  inset: 20px;
  border-color: rgba(37,99,235,0.4);
  animation-delay: 0.5s;
}

@keyframes glowPulse {
  0%   { transform: scale(0.95); opacity: 0.6; }
  100% { transform: scale(1.05); opacity: 1; }
}

/* Main AE logo */
.loader-logo {
  font-family: var(--font-primary);
  font-size: 4rem;
  font-weight: 900;
  display: flex;
  gap: 4px;
  letter-spacing: -2px;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 0 24px rgba(37,99,235,0.7));
}
.loader-logo span {
  background: linear-gradient(135deg, #60A5FA, #2563EB, #38BDF8);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
  animation: loaderPop 0.7s cubic-bezier(0.34,1.56,0.64,1) forwards;
  opacity: 0;
}
.loader-logo span:nth-child(1) { animation-delay: 0.1s; }
.loader-logo span:nth-child(2) { animation-delay: 0.25s; }

@keyframes loaderPop {
  from { transform: scale(0.3) translateY(20px); opacity: 0; }
  to   { transform: scale(1)   translateY(0px);  opacity: 1; }
}

/* Floating tech icon satellites */
.loader-tech-icons {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.ti {
  position: absolute;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(15,23,42,0.85);
  border: 1px solid rgba(56,189,248,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--secondary);
  backdrop-filter: blur(4px);
  animation: techFloat 3s ease-in-out infinite;
  box-shadow: 0 0 10px rgba(56,189,248,0.15);
}
.ti-1 { top: 0%;    left: 50%; transform: translateX(-50%); color:#FF9900; border-color:rgba(255,153,0,0.3); animation-delay:0s; }
.ti-2 { top: 16%;   right: 2%; color:#2496ED; border-color:rgba(36,150,237,0.3); animation-delay:0.5s; }
.ti-3 { top: 55%;   right: -4%; color:#326CE5; border-color:rgba(50,108,229,0.3); animation-delay:1s; }
.ti-4 { bottom: 5%; left: 50%; transform: translateX(-50%); color:#D33833; border-color:rgba(211,56,51,0.3); animation-delay:1.5s; }
.ti-5 { top: 55%;   left: -4%; color:#38BDF8; border-color:rgba(56,189,248,0.3); animation-delay:0.8s; }
.ti-6 { top: 16%;   left: 2%;  color:#A78BFA; border-color:rgba(167,139,250,0.3); animation-delay:0.3s; }

@keyframes techFloat {
  0%,100% { transform: translateY(0) scale(1); }
  50%      { transform: translateY(-5px) scale(1.08); }
}
.ti-1, .ti-4 { animation-name: techFloatCenter; }
@keyframes techFloatCenter {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(-5px); }
}

/* Subtitle */
.loader-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--secondary);
  opacity: 0;
  animation: fadeSlideUp 0.6s ease 0.6s forwards;
  margin-bottom: 2rem;
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Progress bar with percent */
.loader-bar-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeSlideUp 0.6s ease 0.8s forwards;
}
.loader-bar {
  width: 240px;
  height: 5px;
  background: rgba(255,255,255,0.07);
  border-radius: 99px;
  overflow: hidden;
  position: relative;
}
.loader-bar::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(56,189,248,0.08);
  border-radius: 99px;
}
.loader-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #1d4ed8, #2563EB, #38BDF8, #60A5FA);
  background-size: 200% 100%;
  border-radius: 99px;
  animation: loaderFill 1.8s cubic-bezier(0.4,0,0.2,1) forwards,
             shimmer 1.5s linear 0.3s infinite;
  box-shadow: 0 0 12px rgba(37,99,235,0.8), 0 0 4px rgba(56,189,248,0.6);
}
.loader-percent {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--secondary);
  min-width: 2.5rem;
  text-align: left;
  font-weight: 600;
  text-shadow: 0 0 8px rgba(56,189,248,0.5);
}

@keyframes loaderFill {
  0%   { width: 0%; }
  30%  { width: 25%; }
  60%  { width: 65%; }
  85%  { width: 88%; }
  100% { width: 100%; }
}
@keyframes shimmer {
  0%   { background-position: 200% center; }
  100% { background-position: -200% center; }
}

/* Status text */
.loader-text {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  opacity: 0;
  animation: fadeSlideUp 0.6s ease 1s forwards;
  min-height: 1.2em;
}

/* ============ LOADER GRID LINES (background grid) ============ */
.loader::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}



/* ============ CONTAINER ============ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ============ NAVIGATION ============ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: all var(--transition-med);
}
.navbar.scrolled {
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0.7rem 0;
  box-shadow: var(--shadow-sm);
}
/* Light mode navbar */
body.light-mode .navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(30, 64, 175, 0.12);
  box-shadow: 0 2px 20px rgba(15,23,42,0.08);
}
body.light-mode .navbar.scrolled .nav-link {
  color: #334155;
}
body.light-mode .navbar.scrolled .nav-link:hover,
body.light-mode .navbar.scrolled .nav-link.active {
  color: var(--primary);
}
body.light-mode .navbar.scrolled .nav-logo {
  color: var(--primary);
}
.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--secondary);
  font-family: var(--font-mono);
  transition: color var(--transition-fast);
}
.nav-logo:hover { color: var(--primary); }
.logo-bracket { color: var(--primary); }

.nav-links {
  display: flex;
  gap: 0.25rem;
  align-items: center;
}
.nav-link {
  padding: 0.4rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: all var(--transition-fast);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 50%;
  width: 0; height: 2px;
  background: var(--gradient-primary);
  border-radius: 99px;
  transition: all var(--transition-fast);
  transform: translateX(-50%);
}
.nav-link:hover, .nav-link.active {
  color: var(--secondary);
}
.nav-link:hover::after, .nav-link.active::after {
  width: 70%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.theme-toggle {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--border);
  color: var(--secondary);
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition-fast);
  backdrop-filter: blur(8px);
}
.theme-toggle:hover {
  background: var(--primary);
  color: white;
  transform: rotate(20deg) scale(1.1);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.4rem;
  width: 40px;
}
.hamburger-line {
  display: block;
  width: 100%; height: 2px;
  background: var(--secondary);
  border-radius: 99px;
  transition: all var(--transition-fast);
}
.hamburger.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active .hamburger-line:nth-child(2) { opacity: 0; }
.hamburger.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============ HERO SECTION ============ */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 6rem 1.5rem 4rem;
}

/* Particle Background */
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.particle {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--s);
  height: var(--s);
  background: var(--secondary);
  border-radius: 50%;
  opacity: 0.4;
  animation: float var(--d) ease-in-out infinite alternate;
  box-shadow: 0 0 calc(var(--s) * 2) var(--secondary);
}
.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56,189,248,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56,189,248,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

@keyframes float {
  from { transform: translateY(0px) scale(1); opacity: 0.3; }
  to   { transform: translateY(-30px) scale(1.2); opacity: 0.7; }
}

.hero-content {
  max-width: var(--container-max);
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Hero Text */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 99px;
  padding: 0.35rem 1rem;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
}
.badge-dot {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(34,197,94,0.5); }
  50%      { box-shadow: 0 0 0 8px rgba(34,197,94,0); }
}

.hero-name {
  font-size: clamp(1.6rem, 3.8vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-primary);
  letter-spacing: 0.03em;
}
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}

.hero-title-wrapper {
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
  font-family: var(--font-secondary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.hero-typing {
  color: var(--secondary);
  font-weight: 700;
  min-width: 2ch;
}
.cursor {
  color: var(--secondary);
  animation: blink 0.7s ease infinite;
  font-weight: 300;
}

.hero-description {
  font-family: var(--font-secondary);
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 540px;
  line-height: 1.85;
  letter-spacing: 0.02em;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}
.hero-socials {
  display: flex;
  gap: 1rem;
}
.social-link {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  backdrop-filter: blur(8px);
}
.social-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(37,99,235,0.4);
}

/* Hero Visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.profile-card {
  position: relative;
  width: 340px;
  height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.profile-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid;
  animation: spinRing linear infinite;
}
.ring-1 {
  width: 340px; height: 340px;
  border-color: rgba(37,99,235,0.3);
  animation-duration: 15s;
}
.ring-2 {
  width: 290px; height: 290px;
  border-color: rgba(56,189,248,0.25);
  animation-duration: 12s;
  animation-direction: reverse;
}
.ring-3 {
  width: 240px; height: 240px;
  border-color: rgba(34,197,94,0.2);
  animation-duration: 20s;
  border-style: dashed;
}
@keyframes spinRing {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.profile-avatar {
  width: 200px; height: 200px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--bg-secondary);
  border: 3px solid var(--primary);
  box-shadow:
    0 0 40px rgba(37,99,235,0.4),
    0 0 80px rgba(37,99,235,0.15),
    0 0 120px rgba(56,189,248,0.1);
  animation: heroFloat 4s ease-in-out infinite;
  position: relative;
  z-index: 2;
}
.profile-avatar svg { width:100%; height:100%; }
.profile-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

@keyframes heroFloat {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-15px); }
}

/* Floating Badges */
.float-badge {
  position: absolute;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 0.5rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: var(--shadow-md);
  z-index: 3;
}
.float-badge i { font-size: 1rem; }
.badge-aws    { top: 12%; right: -10%; animation: badge-float 3s ease-in-out infinite; color:#FF9900; }
.badge-docker { bottom: 20%; right: -15%; animation: badge-float 3.5s ease-in-out infinite 0.5s; color:#2496ED; }
.badge-linux  { top: 18%; left: -12%; animation: badge-float 4s ease-in-out infinite 1s; color:#FCC624; }
.badge-git    { bottom: 15%; left: -8%; animation: badge-float 3.8s ease-in-out infinite 1.5s; color:#F05032; }
@keyframes badge-float {
  0%,100% { transform: translateY(0) rotate(-1deg); }
  50%      { transform: translateY(-8px) rotate(1deg); }
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  animation: scrollBounce 2s ease-in-out infinite;
  z-index: 1;
}
.scroll-dot {
  width: 24px; height: 38px;
  border: 2px solid var(--border);
  border-radius: 12px;
  position: relative;
}
.scroll-dot::after {
  content: '';
  position: absolute;
  left: 50%; top: 5px;
  transform: translateX(-50%);
  width: 4px; height: 8px;
  background: var(--secondary);
  border-radius: 99px;
  animation: scrollDot 1.5s ease-in-out infinite;
}
@keyframes scrollDot {
  0%   { top:5px; opacity:1; }
  100% { top:18px; opacity:0; }
}
@keyframes scrollBounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(6px); }
}

/* ============ SECTION COMMON ============ */
.section { padding: var(--section-padding); }

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}
.section-tag {
  display: inline-block;
  background: rgba(37,99,235,0.1);
  border: 1px solid rgba(37,99,235,0.3);
  border-radius: 99px;
  padding: 0.3rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1rem;
}
.title-underline {
  width: 70px; height: 4px;
  background: var(--gradient-primary);
  border-radius: 99px;
  margin: 0 auto;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-primary);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  border: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 16px rgba(37,99,235,0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37,99,235,0.5);
}
.btn-secondary {
  background: rgba(56,189,248,0.1);
  color: var(--secondary);
  border: 1px solid var(--secondary);
}
.btn-secondary:hover {
  background: var(--secondary);
  color: var(--bg-primary);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--secondary);
  color: var(--secondary);
  background: rgba(56,189,248,0.05);
}
.btn-sm { padding: 0.5rem 1.2rem; font-size: 0.82rem; }
.btn-full { width: 100%; justify-content: center; }

/* Ripple Effect */
.ripple { position: relative; overflow: hidden; }
.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  transform: scale(0);
  animation: rippleAnim 0.6s linear;
  pointer-events: none;
}
@keyframes rippleAnim {
  to { transform: scale(4); opacity: 0; }
}

/* ============ GLASS CARD ============ */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 2rem;
}

/* ============ FADE-IN ANIMATIONS ============ */
.fade-in, .fade-in-right {
  opacity: 0;
  transform: translateY(30px);
  filter: blur(8px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1), filter 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.fade-in-right { transform: translateX(30px); }
.fade-in.visible, .fade-in-right.visible {
  opacity: 1;
  transform: translate(0);
  filter: blur(0);
}

/* ============ ABOUT SECTION ============ */
.about { background: var(--bg-tertiary); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-visual { position: relative; }
.about-img-container {
  position: relative;
}
.about-img-bg {
  position: absolute;
  top: 20px; left: 20px;
  right: -20px; bottom: -20px;
  background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(56,189,248,0.05));
  border-radius: var(--border-radius);
  border: 1px solid var(--border);
}
.about-illustration {
  position: relative;
  z-index: 1;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  animation: heroFloat 6s ease-in-out infinite;
}
.about-illustration svg { width:100%; height:auto; display:block; }

.about-stats {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  justify-content: center;
}
.stat-item {
  text-align: center;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-sm);
  padding: 1rem 1.2rem;
  flex: 1;
}
.stat-number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.about-greeting {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.about-paragraph {
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
  line-height: 1.9;
}
.about-paragraph strong { color: var(--text-primary); }

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 1.75rem 0;
}
.highlight-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.highlight-item i {
  color: var(--secondary);
  width: 18px;
  flex-shrink: 0;
}

/* ============ SKILLS SECTION ============ */
.skills-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2.5rem;
}
.skill-tab {
  padding: 0.6rem 1.4rem;
  border-radius: 99px;
  background: var(--glass-bg);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-primary);
  transition: all var(--transition-fast);
  cursor: pointer;
  display: flex; align-items: center; gap: 0.4rem;
  backdrop-filter: blur(8px);
}
.skill-tab:hover, .skill-tab.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 16px rgba(37,99,235,0.4);
  transform: translateY(-1px);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  animation: fadeInUp 0.4s ease forwards;
}
.skills-grid[hidden] { display: none; }

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

.skill-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  transition: all var(--transition-med);
  position: relative;
  overflow: hidden;
  cursor: default;
}
.skill-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  right: 0; height: 3px;
  background: linear-gradient(90deg, var(--skill-color, var(--primary)), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.skill-card:hover, .skill-card:focus {
  transform: translateY(-6px) scale(1.02);
  border-color: rgba(56,189,248,0.45);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
  outline: none;
}
.skill-card:hover::before { opacity: 1; }

.skill-icon {
  width: 52px; height: 52px;
  border-radius: var(--border-radius-sm);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  color: var(--skill-color, var(--secondary));
  margin-bottom: 1rem;
  transition: all var(--transition-fast);
}
.skill-card:hover .skill-icon {
  background: rgba(255,255,255,0.1);
  transform: scale(1.1);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.skill-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}
.skill-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.skill-bar {
  height: 5px;
  background: rgba(255,255,255,0.08);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 0.35rem;
}
.skill-bar-fill {
  height: 100%;
  width: 0%;
  border-radius: 99px;
  background: var(--bar-color, var(--primary));
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 8px var(--bar-color, var(--primary));
}
.skill-percent {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ============ PROJECTS SECTION ============ */
.projects { background: var(--bg-tertiary); }

/* Section subtitle */
.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}
.section-subtitle i { color: var(--text-primary); margin: 0 0.2rem; }

/* Filter pills */
.project-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  margin-bottom: 2.5rem;
}
.project-filter-btn {
  padding: 0.5rem 1.3rem;
  border-radius: 99px;
  background: var(--glass-bg);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  font-family: var(--font-primary);
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(8px);
}
.project-filter-btn:hover,
.project-filter-btn.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 16px rgba(37,99,235,0.35);
}

/* Projects grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

/* GitHub-fetched cards: entrance animation (no scroll observer needed) */
@keyframes ghCardIn {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.gh-card {
  animation: ghCardIn 0.5s ease backwards;
}

/* ---- Project Card ---- */
.project-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: all var(--transition-med);
  display: flex;
  flex-direction: column;
  position: relative;
}
.project-card:hover,
.project-card:focus {
  transform: translateY(-6px) scale(1.02);
  border-color: rgba(56,189,248,0.45);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
  outline: none;
}
/* Featured glow on first card */
.project-card.featured-card {
  border-color: rgba(37,99,235,0.5);
  box-shadow: 0 0 0 1px rgba(37,99,235,0.15), inset 0 1px 0 rgba(56,189,248,0.1);
}
.project-card.featured-card:hover,
.project-card.featured-card:focus {
  border-color: rgba(37,99,235,0.8);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}
.project-card.hidden-card { display: none; }

/* Card top accent bar */
.project-card-accent {
  height: 3px;
  background: var(--gradient-primary);
  width: 100%;
  flex-shrink: 0;
}

.project-img {
  width: 100%;
  overflow: hidden;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.project-img svg {
  width: 100%;
  transition: transform var(--transition-med);
}
.project-card:hover .project-img svg { transform: scale(1.04); }

.project-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0;
}

/* Tags row */
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
  align-items: center;
}
.tag {
  padding: 0.22rem 0.7rem;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 600;
  background: color-mix(in srgb, var(--tag-color) 12%, transparent);
  color: var(--tag-color, var(--secondary));
  border: 1px solid color-mix(in srgb, var(--tag-color) 30%, transparent);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

/* Language dot */
.lang-dot {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: auto;
}
.lang-dot-circle {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.project-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
  line-height: 1.4;
}
.project-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 1rem;
}

/* GitHub stats row */
.project-gh-stats {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.1rem;
  padding: 0.6rem 0.8rem;
  background: rgba(255,255,255,0.04);
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border);
}
.gh-stat-item {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.gh-stat-item i { font-size: 0.75rem; }
.gh-stat-item i.fa-star    { color: #F59E0B; }
.gh-stat-item i.fa-code-fork { color: var(--secondary); }
.gh-stat-item i.fa-circle-dot { color: var(--accent); }
.gh-updated {
  margin-left: auto;
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Buttons */
.project-links {
  display: flex;
  gap: 0.75rem;
  margin-top: auto;
}
.project-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.1rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  font-family: var(--font-primary);
  transition: all var(--transition-fast);
  cursor: pointer;
}
.btn-github {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.btn-github:hover {
  background: rgba(255,255,255,0.12);
  color: var(--text-primary);
  transform: translateY(-1px);
}
.btn-live {
  background: var(--gradient-primary);
  border: none;
  color: white;
  box-shadow: 0 2px 8px rgba(37,99,235,0.35);
}
.btn-live:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(37,99,235,0.5);
}

/* ---- Skeleton Loader ---- */
@keyframes skeletonShimmer {
  0%   { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}
.skeleton-card { pointer-events: none; padding: 1.5rem; gap: 0.8rem; }
.skeleton-card .sk-top {
  height: 3px;
  border-radius: 99px;
  background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.04) 75%);
  background-size: 800px 100%;
  animation: skeletonShimmer 1.4s infinite;
  margin-bottom: 1.2rem;
}
.skeleton-card .sk-line {
  height: 12px;
  border-radius: 99px;
  background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.09) 50%, rgba(255,255,255,0.04) 75%);
  background-size: 800px 100%;
  animation: skeletonShimmer 1.4s infinite;
  margin-bottom: 0.8rem;
}
.sk-w40 { width: 40%; }
.sk-w60 { width: 60%; }
.sk-w70 { width: 70%; }
.sk-w90 { width: 90%; }

/* ---- Projects CTA ---- */
.projects-cta {
  display: flex;
  justify-content: center;
  margin-top: 2.5rem;
}

/* ============ CERTIFICATIONS SECTION ============ */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.cert-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: 2rem;
  position: relative;
  transition: all var(--transition-med);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.cert-card:hover, .cert-card:focus {
  transform: translateY(-6px) scale(1.02);
  border-color: rgba(56,189,248,0.45);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
  outline: none;
}

.cert-icon {
  font-size: 2.5rem;
  color: var(--cert-icon-color, #FF9900);
}
.cert-badge {
  position: absolute;
  top: 1.25rem; right: 1.25rem;
  padding: 0.3rem 0.8rem;
  border-radius: 99px;
  font-size: 0.73rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.cert-badge.coming-soon {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}
.cert-badge.upcoming {
  background: rgba(56, 189, 248, 0.1);
  color: var(--secondary);
  border: 1px solid rgba(56,189,248,0.25);
}

.cert-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  padding-right: 5rem;
}
.cert-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.cert-meta {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.cert-meta span {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.cert-meta i { color: var(--secondary); }

.cert-progress {
  height: 5px;
  background: rgba(255,255,255,0.08);
  border-radius: 99px;
  overflow: hidden;
}
.cert-bar {
  height: 100%;
  width: var(--cert-width);
  background: var(--cert-color, var(--primary));
  border-radius: 99px;
  box-shadow: 0 0 8px var(--cert-color, var(--primary));
}
.cert-progress-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ============ EDUCATION / TIMELINE ============ */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--secondary), transparent);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  justify-content: flex-start;
  padding-left: calc(50% + 3rem);
  position: relative;
  margin-bottom: 3rem;
}
.timeline-item:nth-child(even) {
  justify-content: flex-end;
  padding-left: 0;
  padding-right: calc(50% + 3rem);
  flex-direction: row-reverse;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  top: 2rem;
  transform: translateX(-50%);
  width: 50px; height: 50px;
  border-radius: 50%;
  background: var(--gradient-primary);
  border: 3px solid var(--bg-primary);
  display: flex; align-items: center; justify-content: center;
  color: white;
  font-size: 1.1rem;
  z-index: 2;
  box-shadow: 0 0 20px rgba(37,99,235,0.5);
}
.timeline-dot.secondary {
  background: var(--gradient-accent);
  box-shadow: 0 0 20px rgba(34,197,94,0.5);
}

.timeline-content {
  width: 100%;
  max-width: 380px;
}
.timeline-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}
.timeline-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: rgba(37,99,235,0.15);
  border: 1px solid rgba(37,99,235,0.3);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  font-size: 1.2rem;
  flex-shrink: 0;
}
.timeline-icon.secondary {
  background: rgba(34,197,94,0.15);
  border-color: rgba(34,197,94,0.3);
  color: var(--accent);
}
.timeline-date {
  display: block;
  font-size: 0.8rem;
  color: var(--secondary);
  font-weight: 600;
  font-family: var(--font-mono);
  margin-bottom: 0.2rem;
}
.timeline-type {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.timeline-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}
.timeline-content h4 {
  font-size: 0.9rem;
  color: var(--secondary);
  font-weight: 500;
  margin-bottom: 0.75rem;
}
.timeline-details {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}
.timeline-stat {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.timeline-stat i { color: var(--accent); }
.timeline-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.timeline-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.tl-tag {
  padding: 0.2rem 0.6rem;
  background: rgba(37,99,235,0.1);
  border: 1px solid rgba(37,99,235,0.2);
  border-radius: 99px;
  font-size: 0.72rem;
  color: var(--secondary);
  font-weight: 500;
}
.experience-bullets li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0.5rem;
}
.experience-bullets li::marker {
  color: var(--primary);
}

/* ============ RESUME SECTION ============ */
.resume-section { background: var(--bg-tertiary); }
.resume-card {
  display: flex;
  align-items: center;
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
  flex-wrap: wrap;
}
.resume-left { flex-shrink: 0; }
.resume-icon {
  width: 80px; height: 80px;
  border-radius: var(--border-radius-sm);
  background: var(--gradient-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.2rem;
  color: white;
  box-shadow: 0 8px 24px rgba(37,99,235,0.4);
}
.resume-center { flex: 1; min-width: 200px; }
.resume-center h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 0.5rem; }
.resume-center p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 1rem; }
.resume-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.resume-hl {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.resume-hl i { color: var(--accent); }

.resume-right { text-align: center; flex-shrink: 0; }
.resume-btn { font-size: 1rem; padding: 0.85rem 2rem; }
.resume-format {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* ============ GITHUB SECTION ============ */
.github-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.github-stat-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: all var(--transition-med);
}
.github-stat-card:hover, .github-stat-card:focus {
  transform: translateY(-6px);
  border-color: rgba(56,189,248,0.4);
  box-shadow: var(--shadow-md);
  outline: none;
}
.gh-stat-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: block;
}
.gh-stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: block;
  line-height: 1;
  margin-bottom: 0.5rem;
}
.gh-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.github-calendar-card {
  margin-top: 1.5rem;
}
.gh-calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.gh-calendar-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.gh-calendar-header h3 i { color: var(--text-muted); }

.gh-calendar {
  overflow-x: auto;
  padding-bottom: 0.5rem;
}
.gh-calendar-inner {
  display: flex;
  gap: 3px;
  min-width: fit-content;
}

.gh-week {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.gh-day {
  width: 12px; height: 12px;
  border-radius: 2px;
  transition: transform 0.2s ease;
}
.gh-day:hover { transform: scale(1.4); }

.gh-calendar-legend {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.legend-box {
  width: 12px; height: 12px;
  border-radius: 2px;
}

/* ============ CONTACT SECTION ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.contact-info > p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.contact-items { display: flex; flex-direction: column; gap: 1rem; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
}
.contact-item:hover {
  border-color: rgba(56,189,248,0.4);
  transform: translateX(4px);
  background: rgba(37,99,235,0.05);
}
.contact-item-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: rgba(37,99,235,0.15);
  border: 1px solid rgba(37,99,235,0.3);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-item-icon.linkedin { background: rgba(0,119,181,0.15); border-color:rgba(0,119,181,0.3); color:#0077B5; }
.contact-item-icon.github   { background: rgba(110,64,201,0.15); border-color:rgba(110,64,201,0.3); color:#6e40c9; }
.contact-item-icon.location { background: rgba(34,197,94,0.15);  border-color:rgba(34,197,94,0.3);  color:var(--accent); }
.contact-item-text { display:flex; flex-direction:column; gap:0.15rem; }
.contact-item-label { font-size:0.75rem; color:var(--text-muted); text-transform:uppercase; letter-spacing:1px; }
.contact-item-value { font-size:0.9rem; color:var(--text-primary); font-weight:500; }

/* Contact Form */
.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.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 label span { color: var(--primary); }

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}
.input-wrapper i {
  position: absolute;
  left: 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  pointer-events: none;
  z-index: 1;
}
.input-wrapper input,
.input-wrapper textarea {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.75rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-family: var(--font-secondary);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
  backdrop-filter: blur(8px);
}
.input-wrapper.textarea-wrapper { align-items: flex-start; }
.input-wrapper.textarea-wrapper i { top: 1rem; }
.input-wrapper textarea { resize: vertical; min-height: 130px; padding-top: 0.85rem; }
.input-wrapper input:focus,
.input-wrapper textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
  background: rgba(15, 23, 42, 0.8);
}
.input-wrapper input::placeholder,
.input-wrapper textarea::placeholder { color: var(--text-muted); }

/* ── Light mode: inputs ── */
body.light-mode .input-wrapper input,
body.light-mode .input-wrapper textarea {
  background: #FFFFFF;
  border-color: rgba(30, 64, 175, 0.2);
  color: #0F172A;
}
body.light-mode .input-wrapper input::placeholder,
body.light-mode .input-wrapper textarea::placeholder {
  color: #94A3B8;
}
body.light-mode .input-wrapper i {
  color: #64748B;
}
body.light-mode .input-wrapper input:focus,
body.light-mode .input-wrapper textarea:focus {
  background: #FFFFFF;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(29,78,216,0.12);
}

.form-status {
  display: none;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  text-align: center;
}
.form-status.success {
  display: block;
  background: rgba(34,197,94,0.12);
  border: 1px solid rgba(34,197,94,0.3);
  color: var(--accent);
}
.form-status.error {
  display: block;
  background: rgba(239,68,68,0.12);
  border: 1px solid rgba(239,68,68,0.3);
  color: #ef4444;
}

/* ============ FOOTER ============ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  padding-bottom: 3rem;
}

.footer-brand .nav-logo {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  display: inline-block;
}
.footer-brand p {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}
.footer-socials {
  display: flex;
  gap: 0.75rem;
}
.footer-socials a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}
.footer-socials a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  transform: translateY(-2px);
}

.footer-links h4, .footer-contact h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 1.25rem;
}
.footer-links ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links a {
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
  display: flex; align-items: center; gap: 0.4rem;
}
.footer-links a:hover { color: var(--secondary); }

.footer-contact p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.footer-contact i { color: var(--secondary); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-tech {
  display: flex;
  gap: 0.75rem;
  font-size: 1.2rem;
  color: var(--text-muted);
}
.footer-tech i:hover { color: var(--secondary); transition: color var(--transition-fast); }
.heart { animation: heartBeat 1.5s ease infinite; display: inline-block; }
@keyframes heartBeat {
  0%,100% { transform: scale(1); }
  50%      { transform: scale(1.3); }
}

/* ============ BACK TO TOP ============ */
.back-to-top {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: white;
  font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,99,235,0.4);
  transition: all var(--transition-fast);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  z-index: 999;
  cursor: pointer;
  border: none;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(37,99,235,0.6);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1100px) {
  .github-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  :root { --section-padding: 4.5rem 0; }

  .nav-links {
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: rgba(15,23,42,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 1.5rem;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(calc(-100% - 75px));
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-med), opacity var(--transition-med), visibility var(--transition-med);
    align-items: center;
    z-index: 999;
  }
  .nav-links.open { 
    transform: translateY(0); 
    opacity: 1;
    visibility: visible;
  }
  body.light-mode .nav-links { background: rgba(248, 250, 252, 0.97); }
  .nav-link { width: 100%; padding: 0.75rem 1rem; text-align: center; }
  .hamburger { display: flex; }
  .nav-actions { margin-left: auto; }

  .hero-content { grid-template-columns: 1fr; gap: 3rem; text-align: center; }
  .hero-text { order: 2; align-items: center; display: flex; flex-direction: column; }
  .hero-visual { order: 1; }
  .hero-buttons { justify-content: center; }
  .hero-socials { justify-content: center; }
  .hero-description { margin-left: auto; margin-right: auto; text-align: center; }

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

  .timeline::before { left: 24px; }
  .timeline-item,
  .timeline-item:nth-child(even) {
    padding: 0 0 0 4rem;
    justify-content: flex-start;
    flex-direction: row;
  }
  .timeline-dot { left: 0; transform: none; width: 40px; height: 40px; font-size: 0.9rem; }
  .timeline-content { max-width: 100%; }

  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row { grid-template-columns: 1fr; }

  .float-badge { display: none; }
  .profile-card { width: 250px; height: 250px; }
  .ring-1 { width: 250px; height: 250px; }
  .ring-2 { width: 210px; height: 210px; }
  .ring-3 { width: 170px; height: 170px; }
  .profile-avatar { width: 150px; height: 150px; }
}

@media (max-width: 768px) {
  :root { --section-padding: 4rem 0; }
  
  .section-title { font-size: 2rem; }
  
  .projects-grid, .certs-grid, .skills-grid, .footer-grid, .about-highlights { 
    grid-template-columns: 1fr; 
  }
  
  .hero-name { font-size: 2.2rem; }
  .hero-title-wrapper { justify-content: center; }
}

@media (max-width: 640px) {
  :root { --section-padding: 3.5rem 0; }

  .section-title { font-size: 1.8rem; }
  .github-stats-grid { grid-template-columns: 1fr; }
  .resume-card { flex-direction: column; align-items: flex-start; text-align: left; }
  .resume-right { width: 100%; }
  .resume-btn { width: 100%; justify-content: center; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-buttons { flex-direction: column; align-items: center; width: 100%; }
  .hero-buttons .btn { width: 100%; max-width: 300px; justify-content: center; }
  
  .profile-card { width: 280px; height: 280px; transform: scale(0.9); }
}

/* ============ SCROLLBAR ============ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover { background: var(--secondary); }

/* ============ SELECTION ============ */
::selection {
  background: rgba(37,99,235,0.35);
  color: var(--text-primary);
}

/* ============ FOCUS STYLES ============ */
:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 3px;
  border-radius: 4px;
}