/* ============================================================
   ETLGuru.in - Portfolio Design System
   ============================================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&display=swap');

/* ============================================================
   CSS Variables - Design Tokens
   ============================================================ */
:root {
  /* Colors */
  --primary: #0066FF;
  --primary-light: #3385FF;
  --primary-dark: #0052CC;
  --accent: #00D4FF;
  --accent-glow: rgba(0, 212, 255, 0.3);

  /* Dark Mode (default) */
  --bg-base: #070B14;
  --bg-surface: #0D1526;
  --bg-elevated: #111D35;
  --bg-card: rgba(17, 29, 53, 0.7);
  --border: rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.15);
  --text-primary: #F0F4FF;
  --text-secondary: #8A9DC0;
  --text-muted: #4A5A7A;
  --glass-bg: rgba(13, 21, 38, 0.6);
  --glass-border: rgba(0, 102, 255, 0.15);
  --shadow-color: rgba(0, 0, 0, 0.5);
  --hero-overlay: rgba(7, 11, 20, 0.85);

  /* Typography */
  --font-display: 'Calibri', sans-serif;
  --font-body: 'Calibri', sans-serif;

  /* Spacing */
  --section-gap: 120px;
  --card-radius: 20px;
  --btn-radius: 12px;

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-base: #F5F7FF;
  --bg-surface: #FFFFFF;
  --bg-elevated: #EEF1FF;
  --bg-card: rgba(255, 255, 255, 0.85);
  --border: rgba(0,0,0,0.08);
  --border-strong: rgba(0,0,0,0.15);
  --text-primary: #0A0F1E;
  --text-secondary: #3D5080;
  --text-muted: #8A9DC0;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 102, 255, 0.2);
  --shadow-color: rgba(0, 60, 180, 0.12);
  --hero-overlay: rgba(245, 247, 255, 0.5);
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.7;
  transition: background 0.4s ease, color 0.4s ease;
  overflow-x: hidden;
}

::selection { background: var(--primary); color: white; }

/* ============================================================
   Scrollbar
   ============================================================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ============================================================
   Typography
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.2rem; }

p { color: var(--text-secondary); font-size: 1.05rem; }

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

/* ============================================================
   Layout Utilities
   ============================================================ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container--wide { max-width: 1400px; margin: 0 auto; padding: 0 24px; }

.section {
  padding: var(--section-gap) 0;
  position: relative;
}

.section__header {
  text-align: center;
  margin-bottom: 72px;
}

.section__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 102, 255, 0.1);
  border: 1px solid rgba(0, 102, 255, 0.3);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
  font-family: var(--font-body);
}

.section__tag::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  display: block;
}

.section__subtitle {
  max-width: 600px;
  margin: 16px auto 0;
  font-size: 1.1rem;
}

.grid { display: grid; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }

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

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--btn-radius);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.3s;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
}

.btn:hover::before { opacity: 1; }

.btn--primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 24px rgba(0, 102, 255, 0.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 102, 255, 0.5);
}

.btn--outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}

.btn--outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn--accent {
  background: linear-gradient(135deg, var(--accent), #0099BB);
  color: #070B14;
  box-shadow: 0 4px 24px var(--accent-glow);
}

.btn--accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.btn--sm { padding: 10px 20px; font-size: 0.85rem; }
.btn--lg { padding: 18px 36px; font-size: 1.05rem; }

/* ============================================================
   Cards - Glassmorphism
   ============================================================ */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--card-radius);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.3), transparent);
}

.card:hover {
  border-color: rgba(0, 102, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 102, 255, 0.15);
}

/* ============================================================
   Navigation
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}

.navbar--scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--text-primary);
}

.nav__logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: white;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav__link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

.nav__link:hover, .nav__link.active {
  color: var(--text-primary);
  background: rgba(0, 102, 255, 0.1);
}

.nav__link.active { color: var(--primary); }

.nav__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
  color: var(--text-secondary);
}

.theme-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: rotate(15deg);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================================
   Mobile Nav
   ============================================================ */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 300px;
  height: 100vh;
  background: var(--bg-surface);
  border-left: 1px solid var(--border);
  z-index: 1001;
  padding: 80px 32px 32px;
  transition: var(--transition-slow);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-nav.open { right: 0; }

.mobile-nav__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

.mobile-nav__link:hover {
  background: rgba(0, 102, 255, 0.1);
  color: var(--primary);
}

.mobile-nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.mobile-nav__overlay.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav__close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.mobile-nav__close:hover { color: var(--primary); }

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 102, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 102, 255, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 8s ease-in-out infinite;
}

.hero__orb--1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 102, 255, 0.2), transparent 70%);
  top: -100px;
  right: -100px;
}

.hero__orb--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.15), transparent 70%);
  bottom: 0;
  left: -100px;
  animation-delay: -4s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(20px, -30px); }
  50% { transform: translate(-10px, 20px); }
  75% { transform: translate(30px, 10px); }
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 102, 255, 0.1);
  border: 1px solid rgba(0, 102, 255, 0.25);
  padding: 10px 20px;
  border-radius: 100px;
  margin-bottom: 32px;
  animation: fadeInUp 0.8s ease both;
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero__badge-text {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.hero__title {
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero__title .line { display: block; }

.hero__subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin-bottom: 40px;
  animation: fadeInUp 0.8s ease 0.2s both;
  line-height: 1.8;
}

.hero__cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero__roles {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
  animation: fadeInUp 0.8s ease 0.15s both;
}

.hero__role-tag {
  padding: 6px 14px;
  border-radius: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeInRight 1s ease 0.4s both;
}

.hero__avatar-ring {
  width: 380px;
  height: 380px;
  border-radius: 50%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__avatar-ring::before {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--primary), var(--accent), transparent, var(--primary));
  animation: rotate 6s linear infinite;
}

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

.hero__avatar {
  width: 370px;
  height: 370px;
  border-radius: 50%;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  z-index: 1;
  border: 4px solid var(--bg-base);
}

.hero__avatar-initials {
  font-family: var(--font-display);
  font-size: 5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__floating-card {
  position: absolute;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: float 4s ease-in-out infinite;
  z-index: 2;
}

.hero__floating-card--1 {
  top: 30px;
  right: -30px;
  animation-delay: 0s;
}

.hero__floating-card--2 {
  bottom: 80px;
  left: -40px;
  animation-delay: -2s;
}

.hero__floating-card--3 {
  top: 50%;
  right: -50px;
  animation-delay: -1s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero__card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.hero__card-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.hero__card-value {
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--text-primary);
}

/* ============================================================
   Stats Section
   ============================================================ */
.stats {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stat__item {
  text-align: center;
  padding: 32px 20px;
  border-right: 1px solid var(--border);
  position: relative;
  transition: var(--transition);
}

.stat__item:last-child { border-right: none; }

.stat__item:hover { background: rgba(0, 102, 255, 0.03); }

.stat__number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  line-height: 1;
  margin-bottom: 8px;
}

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

/* ============================================================
   About Section
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__visual {
  position: relative;
}

.about__img-frame {
  width: 100%;
  aspect-ratio: 4/5;
  border-radius: 24px;
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
}

.about__img-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,102,255,0.15), rgba(0,212,255,0.1));
}

.about__img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
}

.about__img-initials {
  font-family: var(--font-display);
  font-size: 6rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about__exp-badge {
  position: absolute;
  bottom: 24px;
  right: -24px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 16px;
  padding: 20px 24px;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0, 102, 255, 0.4);
}

.about__exp-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: white;
  line-height: 1;
}

.about__exp-text {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.8);
  font-weight: 500;
  margin-top: 4px;
}

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

.about__intro {
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.about__highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.highlight__item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.highlight__icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(0, 102, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.highlight__title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.highlight__desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.timeline { position: relative; padding-left: 28px; }

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--accent), transparent);
}

.timeline__item { position: relative; margin-bottom: 28px; }

.timeline__item::before {
  content: '';
  position: absolute;
  left: -24px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--bg-base);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.2);
}

.timeline__year {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 4px;
}

.timeline__role {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.timeline__company {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ============================================================
   Skills Section
   ============================================================ */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.skill__category-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.skill__category-icon--blue { background: rgba(0, 102, 255, 0.15); }
.skill__category-icon--cyan { background: rgba(0, 212, 255, 0.15); }
.skill__category-icon--green { background: rgba(0, 200, 100, 0.15); }

.skill__category-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.skill__bars { display: flex; flex-direction: column; gap: 16px; }

.skill__bar-item {}

.skill__bar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.skill__bar-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.skill__bar-pct {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
}

.skill__bar-track {
  height: 6px;
  background: var(--bg-elevated);
  border-radius: 3px;
  overflow: hidden;
}

.skill__bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  width: 0;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.skill__tag {
  padding: 4px 12px;
  border-radius: 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ============================================================
   Portfolio / Projects
   ============================================================ */
.portfolio__filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 48px;
}

.filter__btn {
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-body);
}

.filter__btn:hover, .filter__btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.project__card {
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.project__card.hidden { display: none; }

.project__img {
  width: 100%;
  height: 200px;
  background: var(--bg-elevated);
  border-radius: 12px;
  margin-bottom: 20px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project__img-placeholder {
  font-size: 3rem;
  opacity: 0.4;
}

.project__industry {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  background: rgba(0, 102, 255, 0.1);
  border: 1px solid rgba(0, 102, 255, 0.2);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.project__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.project__desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}

.project__tools {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.project__tool {
  padding: 3px 10px;
  border-radius: 5px;
  background: var(--bg-elevated);
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.project__impact {
  padding: 12px;
  background: rgba(0, 212, 255, 0.05);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: 10px;
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
}

.project__impact::before {
  content: '📈 Impact: ';
  font-weight: 700;
}

/* ============================================================
   Services Section
   ============================================================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service__card {
  position: relative;
  overflow: hidden;
}

.service__icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(0,102,255,0.15), rgba(0,212,255,0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  border: 1px solid rgba(0,102,255,0.2);
  transition: var(--transition);
}

.service__card:hover .service__icon {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  transform: scale(1.05);
}

.service__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.service__desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.7;
}

.service__benefits {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.service__benefit {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.service__benefit::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.service__deliverables {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.service__deliverables strong {
  color: var(--text-secondary);
  display: block;
  margin-bottom: 6px;
}

/* ============================================================
   Blog Section
   ============================================================ */
.blog__search {
  display: flex;
  gap: 12px;
  max-width: 500px;
  margin: 0 auto 48px;
}

.blog__search-input {
  flex: 1;
  padding: 14px 20px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.blog__search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,102,255,0.1);
}

.blog__search-input::placeholder { color: var(--text-muted); }

.blog__categories {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 48px;
}

.blog__cat-btn {
  padding: 7px 16px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-body);
}

.blog__cat-btn:hover, .blog__cat-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.blog__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.blog__card {}

.blog__img {
  width: 100%;
  height: 180px;
  background: var(--bg-elevated);
  border-radius: 12px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  border: 1px solid var(--border);
}

.blog__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}

.blog__cat {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(0,102,255,0.1);
  padding: 3px 10px;
  border-radius: 5px;
}

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

.blog__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}

.blog__excerpt {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.blog__read-more {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.blog__read-more:hover { gap: 10px; }

/* ============================================================
   Pyivot Solutions
   ============================================================ */
.pyivot__hero {
  text-align: center;
  padding: 80px 0 60px;
  position: relative;
}

.pyivot__logo {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  padding: 20px 32px;
  border-radius: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
}

.pyivot__logo-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.pyivot__logo-text {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
}

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

.pyivot__tagline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
}

.pyivot__industries {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin: 32px 0;
}

.pyivot__industry {
  padding: 10px 20px;
  border-radius: 100px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

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

.case__studies {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.case__card {
  position: relative;
}

.case__metric {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.case__industry-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.case__title {
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.case__desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ============================================================
   Contact Section
   ============================================================ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}

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

.contact__item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  border-radius: 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.contact__item:hover {
  border-color: var(--primary);
  transform: translateX(4px);
}

.contact__item-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(0, 102, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact__item-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 2px;
}

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

.contact__socials {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.social__btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

.social__btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

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

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

.form__input, .form__textarea {
  padding: 14px 18px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.form__input:focus, .form__textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,102,255,0.1);
  background: var(--bg-surface);
}

.form__input::placeholder, .form__textarea::placeholder {
  color: var(--text-muted);
}

.form__textarea { resize: vertical; min-height: 140px; }

.form__submit {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 32px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  border-radius: 12px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  align-self: flex-start;
}

.form__submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 102, 255, 0.4);
}

.form__success {
  display: none;
  text-align: center;
  padding: 32px;
  color: #00C864;
}

/* ============================================================
   Newsletter
   ============================================================ */
.newsletter {
  background: linear-gradient(135deg, rgba(0,102,255,0.1), rgba(0,212,255,0.05));
  border: 1px solid rgba(0,102,255,0.2);
  border-radius: 28px;
  padding: 60px;
  text-align: center;
  margin: 0 auto;
  max-width: 700px;
  position: relative;
  overflow: hidden;
}

.newsletter::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg, transparent 0deg, rgba(0,102,255,0.03) 60deg, transparent 120deg);
  animation: rotate 20s linear infinite;
}

.newsletter__form {
  display: flex;
  gap: 12px;
  max-width: 440px;
  margin: 28px auto 0;
  position: relative;
}

.newsletter__input {
  flex: 1;
  padding: 14px 20px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.newsletter__input:focus {
  border-color: var(--primary);
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 80px 0 40px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer__brand { }

.footer__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer__logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: white;
}

.footer__logo-text {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
}

.footer__tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 280px;
}

.footer__heading {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__link {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer__link:hover { color: var(--primary); padding-left: 4px; }

.footer__bottom {
  border-top: 1px solid var(--border);
  padding-top: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer__copy {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer__copy a { color: var(--primary); font-weight: 600; }

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

.footer__social {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer__social:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* ============================================================
   Page Header (inner pages)
   ============================================================ */
.page-header {
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 102, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 102, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.page-header__content { position: relative; z-index: 1; }

.page-header__breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.page-header__breadcrumb a {
  color: var(--primary);
  font-weight: 500;
}

.page-header__breadcrumb span { color: var(--text-muted); }

/* ============================================================
   Resume Download CTA
   ============================================================ */
.resume-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 20px;
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.resume-cta__text h3 { color: white; margin-bottom: 8px; }
.resume-cta__text p { color: rgba(255,255,255,0.75); font-size: 0.95rem; }

.resume-cta__btn {
  background: white;
  color: var(--primary);
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: none;
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.resume-cta__btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

/* ============================================================
   Animations
   ============================================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

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

.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.delay-1 { transition-delay: 0.1s; }
.animate-on-scroll.delay-2 { transition-delay: 0.2s; }
.animate-on-scroll.delay-3 { transition-delay: 0.3s; }
.animate-on-scroll.delay-4 { transition-delay: 0.4s; }
.animate-on-scroll.delay-5 { transition-delay: 0.5s; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  :root { --section-gap: 80px; }
  .skills__grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio__grid { grid-template-columns: repeat(2, 1fr); }
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .blog__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .about__grid { grid-template-columns: 1fr; gap: 48px; }
  .about__exp-badge { right: 20px; }
  .hero__visual { display: none; }
  .contact__grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  :root { --section-gap: 60px; }
  .nav__links, .nav__actions .btn { display: none; }
  .hamburger { display: flex; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .stat__item:nth-child(2) { border-right: none; }
  .stat__item:nth-child(3) { border-right: 1px solid var(--border); border-top: 1px solid var(--border); }
  .stat__item:nth-child(4) { border-right: none; border-top: 1px solid var(--border); }
  .skills__grid { grid-template-columns: 1fr; }
  .portfolio__grid { grid-template-columns: 1fr; }
  .services__grid { grid-template-columns: 1fr; }
  .blog__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 24px; }
  .case__studies { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .about__highlights { grid-template-columns: 1fr; }
  .newsletter { padding: 40px 24px; }
  .resume-cta { flex-direction: column; text-align: center; }
  .hero__cta { flex-direction: column; }
  .footer__bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  h1 { font-size: 2.2rem; }
  .stat__number { font-size: 2.2rem; }
}