/* ==========================================================================
   Shubham Palave — Portfolio Stylesheet
   Design tokens: deep dark tech base, cyan → blue gradient accent,
   Poppins for UI text, JetBrains Mono for code / label accents.
   ========================================================================== */

:root {
  /* Colors - Upgraded to a deeper, more premium dark palette */
  --bg: #030712;
  --bg-alt: #080d1a;
  --surface: rgba(255, 255, 255, 0.025);
  --surface-solid: #0c1222;
  --border: rgba(255, 255, 255, 0.06);
  --border-strong: rgba(255, 255, 255, 0.12);

  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #4b5563;

  --cyan: #06b6d4;
  --blue: #2563eb;
  --violet: #4f46e5;
  --gradient: linear-gradient(135deg, var(--cyan) 0%, var(--blue) 100%);
  --gradient-soft: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(37, 99, 235, 0.1));
  --glow: rgba(6, 182, 212, 0.25);

  /* Type */
  --font-body: "Poppins", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  /* Layout & Performance-optimized Transitions */
  --container-w: 1180px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Reset
   ========================================================================== */
* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  background: var(--bg);
  /* Added subtle radial illumination to the background */
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.05), transparent 40%),
    radial-gradient(circle at 0% 100%, rgba(6, 182, 212, 0.03), transparent 30%);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

::selection { background: var(--cyan); color: #020617; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: linear-gradient(var(--cyan), var(--blue)); border-radius: 10px; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   Utility & Enhanced Animations
   ========================================================================== */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

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

.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  display: inline-block;
  box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.6);
  animation: pulse 2.5s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.5); }
  70% { box-shadow: 0 0 0 10px rgba(6, 182, 212, 0); }
  100% { box-shadow: 0 0 0 0 rgba(6, 182, 212, 0); }
}

/* Fluid scroll reveal */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  white-space: nowrap;
  will-change: transform, box-shadow;
}

.btn-primary {
  background: var(--gradient);
  color: #020617;
  box-shadow: 0 4px 20px -6px var(--glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -6px var(--glow);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
}
.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
  background: rgba(6, 182, 212, 0.02);
}

.btn-small { padding: 10px 20px; font-size: 0.85rem; }
.btn-full { width: 100%; justify-content: center; }

.btn-nav-cta {
  padding: 10px 22px;
  border-radius: 50px;
  background: var(--gradient);
  color: #020617;
  font-weight: 600;
  font-size: 0.88rem;
  transition: var(--transition-fast);
}
.btn-nav-cta:hover { filter: brightness(1.1); transform: translateY(-1px); }

/* ==========================================================================
   Loader
   ========================================================================== */
.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.loader.hidden { opacity: 0; visibility: hidden; }

.loader-inner { text-align: center; }

.loader-mark {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: 2px;
}

.loader-bar {
  width: 180px;
  height: 3px;
  background: var(--border);
  border-radius: 10px;
  margin: 18px auto 12px;
  overflow: hidden;
}
.loader-bar span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--gradient);
  animation: loading 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes loading { to { width: 100%; } }

.loader-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 1px;
}

/* ==========================================================================
   Scroll progress bar
   ========================================================================== */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: var(--gradient);
  z-index: 1001;
  transition: width 0.15s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Navbar
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  padding: 24px 0;
  transition: var(--transition);
}
.navbar.scrolled {
  padding: 14px 0;
  background: rgba(3, 7, 18, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-logo {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.5px;
}
.nav-logo .bracket { color: var(--cyan); }

.nav-links {
  display: flex;
  gap: 30px;
  margin: 0 auto;
}
.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition-fast);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--gradient);
  transition: width var(--transition-fast);
}
.nav-link:hover, .nav-link.active-link {
  color: var(--text-primary);
}
.nav-link:hover::after, .nav-link.active-link::after { width: 100%; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  z-index: 1200;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
  border-radius: 2px;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  top: 0; right: -100%;
  width: min(78vw, 340px);
  height: 100vh;
  background: rgba(3, 7, 18, 0.98);
  backdrop-filter: blur(24px);
  border-left: 1px solid var(--border);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 28px;
  padding: 40px;
  transition: right var(--transition);
}
.mobile-menu.open { right: 0; }
.mobile-link {
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--text-primary);
  opacity: 0.85;
  transition: color var(--transition-fast);
}
.mobile-link:hover { color: var(--cyan); opacity: 1; }

/* ==========================================================================
   Hero & Ambient Fluid Blobs
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  overflow: hidden;
}

.hero-bg { position: absolute; inset: 0; z-index: 0; }
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 30% 30%, black 10%, transparent 75%);
}
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.22;
  animation: float 14s ease-in-out infinite;
  will-change: transform;
}
.blob-1 {
  width: 450px; height: 450px;
  background: var(--cyan);
  top: -100px; right: -50px;
}
.blob-2 {
  width: 400px; height: 400px;
  background: var(--violet);
  bottom: -100px; left: -80px;
  animation-delay: 3s;
}
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -40px) scale(1.08); }
}

.hero-container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 40px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cyan);
  background: rgba(6, 182, 212, 0.06);
  border: 1px solid rgba(6, 182, 212, 0.15);
  padding: 7px 16px;
  border-radius: 50px;
  margin-bottom: 22px;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 10px;
}

.hero-role {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 20px;
  min-height: 1.6em;
}
.cursor { color: var(--cyan); animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

.hero-desc {
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 34px;
  font-size: 1.02rem;
}

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }

.hero-socials { display: flex; gap: 14px; }
.hero-socials a {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-secondary);
  transition: var(--transition);
  will-change: transform, color, border-color;
}
.hero-socials a:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px -6px var(--glow);
}

/* Hero visual / avatar */
.hero-visual { display: flex; align-items: center; justify-content: center; }

.avatar-ring {
  position: relative;
  width: 320px;
  height: 320px;
}

.avatar-glass {
  position: absolute;
  inset: 20px;
  border-radius: 50%;
  background: var(--gradient-soft);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  
  /* 🌟 He doni options photo la circle chya baher jau det नाहीत */
  overflow: hidden; 
  animation: none !important; 
}

/* 🛑 Border che animation dekhil thambvanya sathi */
.avatar-glass::before {
  animation: none !important; 
}

/* 📸 Photo jevda circle aahe tevdach distavya sathi ha code taka */
.avatar-glass img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* Photo stretch na hota perfect center madhe set hoil */
  border-radius: 50%;
}
.avatar-glass {
  position: absolute;
  inset: 20px;
  border-radius: 50%;
  background: var(--gradient-soft);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: spin-slow 20s linear infinite;
}
.avatar-glass::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  padding: 2px;
  background: var(--gradient);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: spin-slow 10s linear infinite reverse;
}
@keyframes spin-slow { to { transform: rotate(360deg); } }

.avatar-initials {
  font-family: var(--font-mono);
  font-size: 4rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.orbit-chip {
  position: absolute;
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  color: var(--cyan);
  background: var(--surface-solid);
  border: 1px solid var(--border);
  box-shadow: 0 10px 24px -10px rgba(0,0,0,0.8);
  animation: bob 6s ease-in-out infinite;
  will-change: transform;
}
.chip-1 { top: -6px; left: 20px; animation-delay: 0s; }
.chip-2 { top: 40px; right: -18px; animation-delay: 0.8s; }
.chip-3 { bottom: 30px; right: -6px; animation-delay: 1.6s; }
.chip-4 { bottom: -10px; left: 50px; animation-delay: 2.4s; }
.chip-5 { top: 130px; left: -26px; animation-delay: 3.2s; }

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.scroll-hint {
  position: absolute;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 1px;
  z-index: 2;
  animation: bob 2.4s ease-in-out infinite;
}

/* ==========================================================================
   Sections — shared
   ========================================================================= */
.section { padding: 110px 0; position: relative; }
.section-alt { background: var(--bg-alt); }

.section-tag {
  font-family: var(--font-mono);
  color: var(--cyan);
  font-size: 0.82rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 16px;
  max-width: 720px;
}

.section-sub {
  color: var(--text-secondary);
  max-width: 620px;
  margin-bottom: 50px;
}

/* ==========================================================================
   About
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
  margin-top: 30px;
}

.about-card { padding: 10px; border-radius: var(--radius-lg); }

.code-window {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #050914;
  border: 1px solid var(--border);
}
.code-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.015);
  border-bottom: 1px solid var(--border);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }
.code-filename {
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}
.code-body {
  padding: 24px 20px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--text-secondary);
  overflow-x: auto;
  white-space: pre;
}
.code-comment { color: #4b5563; }
.code-key { color: #c586c0; }
.code-var { color: var(--cyan); }
.code-prop { color: #9cdcfe; }
.code-string { color: #ce9178; }

.about-content p { color: var(--text-secondary); margin-bottom: 18px; }

.about-counters {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 34px;
}
.counter-box {
  text-align: center;
  padding: 18px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  transition: border-color var(--transition), transform var(--transition);
}
.counter-box:hover {
  border-color: rgba(6, 182, 212, 0.3);
  transform: translateY(-2px);
}
.counter, .counter-suffix {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--cyan);
}
.counter-box p {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ==========================================================================
   Skills
   ========================================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 20px;
}
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 16px;
  text-align: center;
  transition: var(--transition);
  will-change: transform, border-color, box-shadow;
}
.skill-card i {
  font-size: 2.1rem;
  margin-bottom: 14px;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: block;
}
.skill-card span {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}
.skill-card:hover {
  transform: translateY(-5px);
  border-color: var(--cyan);
  box-shadow: 0 12px 24px -10px var(--glow);
}
.skill-card:hover span { color: var(--text-primary); }

/* ==========================================================================
   Education — timeline
   ========================================================================== */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 40px auto 0;
  padding-left: 30px;
  border-left: 2px solid var(--border);
}
.timeline-item {
  position: relative;
  margin-bottom: 42px;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: -37px;
  top: 6px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--gradient);
  box-shadow: 0 0 0 5px rgba(6, 182, 212, 0.1);
}
.timeline-card {
  padding: 26px 28px;
  border-radius: var(--radius-md);
}
.timeline-year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.timeline-card h3 { margin: 8px 0 10px; font-size: 1.1rem; }
.timeline-card p { color: var(--text-secondary); font-size: 0.92rem; }

/* ==========================================================================
   Experience Placeholder
   ========================================================================== */
.experience-placeholder {
  max-width: 680px;
  margin: 30px auto 0;
  text-align: center;
  padding: 60px 40px;
  border-radius: var(--radius-lg);
}
.placeholder-icon {
  width: 74px; height: 74px;
  margin: 0 auto 22px;
  border-radius: 50%;
  background: var(--gradient-soft);
  border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.7rem;
  color: var(--cyan);
}
.experience-placeholder h3 { font-size: 1.3rem; margin-bottom: 14px; }
.experience-placeholder p { color: var(--text-secondary); margin-bottom: 24px; }
.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 8px 18px;
  border-radius: 50px;
  border: 1px solid rgba(6, 182, 212, 0.2);
  background: rgba(6, 182, 212, 0.05);
  color: var(--cyan);
}

/* ==========================================================================
   Projects
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.project-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(20px);
  will-change: transform, border-color, box-shadow;
}
.project-card.revealed { opacity: 1; transform: translateY(0); }
.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--cyan);
  box-shadow: 0 20px 36px -16px rgba(0,0,0,0.6);
}

.project-media {
  height: 180px;
  display: flex; align-items: center; justify-content: center;
  font-size: 3.4rem;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.project-media i { position: relative; z-index: 1; opacity: 0.92; }
.project-media::after {
  content: "";
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 24px 24px;
}
.proj-1 { background: linear-gradient(135deg, #dc2626, #6d28d9); }
.proj-2 { background: linear-gradient(135deg, #0284c7, #06b6d4); }
.proj-3 { background: linear-gradient(135deg, #d97706, #dc2626); }
.proj-4 { background: linear-gradient(135deg, #059669, #2563eb); }
.proj-5 { background: linear-gradient(135deg, #4f46e5, #06b6d4); }

.project-body { padding: 26px 24px 28px; }
.project-body h3 { font-size: 1.15rem; margin-bottom: 10px; }
.project-body p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 18px;
  min-height: 62px;
}

.tech-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.tech-tags span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 5px 12px;
  border-radius: 50px;
  border: 1px solid var(--border);
  color: var(--cyan);
  background: rgba(6, 182, 212, 0.05);
}

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

/* ==========================================================================
   Certificates
   ========================================================================== */
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}
.certificate-card {
  padding: 40px 30px;
  border-radius: var(--radius-lg);
  text-align: center;
  transition: var(--transition);
  will-change: transform, border-color, box-shadow;
}
.certificate-card:hover {
  transform: translateY(-5px);
  border-color: var(--cyan);
  box-shadow: 0 14px 28px -12px var(--glow);
}
.cert-icon {
  width: 68px; height: 68px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--gradient-soft);
  border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  color: var(--cyan);
}
.certificate-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.certificate-card p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 22px; }

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 50px;
}

.contact-info { display: flex; flex-direction: column; gap: 26px; }
.info-item { display: flex; align-items: flex-start; gap: 18px; }
.info-icon {
  width: 46px; height: 46px;
  flex-shrink: 0;
  border-radius: 14px;
  background: var(--gradient-soft);
  border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  color: var(--cyan);
  font-size: 1.1rem;
}
.info-item h4 { font-size: 0.95rem; margin-bottom: 4px; }
.info-item a, .info-item p { color: var(--text-secondary); font-size: 0.92rem; transition: color var(--transition-fast); }
.info-item a:hover { color: var(--cyan); }

.social-row { display: flex; gap: 14px; margin-top: 8px; }
.social-row a {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: var(--transition);
}
.social-row a:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  transform: translateY(-3px);
  box-shadow: 0 8px 18px -10px var(--glow);
}

.contact-form {
  padding: 36px;
  border-radius: var(--radius-lg);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 20px; position: relative; }
.form-group label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}
.form-group input, .form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 0.92rem;
  transition: var(--transition);
  resize: vertical;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-muted); }
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--cyan);
  outline: none;
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}
.form-group.invalid input, .form-group.invalid textarea { border-color: #ef4444; }
.form-error {
  display: block;
  font-size: 0.76rem;
  color: #f87171;
  margin-top: 6px;
  min-height: 1em;
}

.form-success {
  display: none;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: rgba(34, 197, 94, 0.05);
  border: 1px solid rgba(34, 197, 94, 0.2);
  color: #4ade80;
  font-size: 0.88rem;
}
.form-success.show { display: flex; }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: #02040a;
  border-top: 1px solid var(--border);
  padding-top: 70px;
}
.footer-container {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 50px;
}
.footer-brand p { color: var(--text-muted); margin-top: 16px; font-size: 0.9rem; max-width: 320px; }
.footer-links, .footer-social { display: flex; flex-direction: column; gap: 14px; }
.footer-links h4, .footer-social h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.footer-links a { color: var(--text-muted); font-size: 0.9rem; transition: color var(--transition-fast); }
.footer-links a:hover { color: var(--cyan); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 22px 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  max-width: var(--container-w);
  margin: 0 auto;
  color: var(--text-muted);
  font-size: 0.82rem;
}
.footer-bottom i { color: var(--cyan); }

/* ==========================================================================
   Scroll To Top Button
   ========================================================================== */
.scroll-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--gradient);
  color: #020617;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 800;
  box-shadow: 0 6px 20px -6px var(--glow);
  will-change: transform, opacity, visibility;
}
.scroll-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top:hover { transform: translateY(-3px); }

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-container { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .nav-links { display: none; }
  .btn-nav-cta { display: none; }
  .hamburger { display: flex; }
  .hero-container { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-cta { justify-content: center; }
  .hero-socials { justify-content: center; }
  .hero-visual { order: -1; margin-bottom: 20px; }
  .avatar-ring { width: 240px; height: 240px; }
  .avatar-initials { font-size: 3rem; }
}

@media (max-width: 720px) {
  .section { padding: 80px 0; }
  .about-counters { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .footer-container { grid-template-columns: 1fr; text-align: left; }
  .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .hero-title { font-size: 2.1rem; }
  .btn { padding: 12px 22px; font-size: 0.88rem; }
  .avatar-ring { width: 200px; height: 200px; }
  .orbit-chip { width: 42px; height: 42px; font-size: 1.1rem; }
  .code-body { font-size: 0.78rem; }
}