/* ============================================================
   CSS Design Tokens
   ============================================================ */
:root {
  --bg-primary:         #0A0F1E;
  --bg-secondary:       #0E1628;
  --bg-card:            #131C2E;
  --bg-card-hover:      #1A2540;
  --color-primary:      #000000;
  --color-primary-dark: #000000;
  --color-primary-glow: rgba(0, 0, 0, 0.5);
  --color-accent:       #22D3EE;
  --color-accent-glow:  rgba(0, 0, 0, 0.5);
  --color-success:      #10B981;
  --text-primary:       #F1F5F9;
  --text-secondary:     #c3d3ede7;
  --text-muted:         #64748B;
  --border:             #1E2D42;
  --border-bright:      #2D3F57;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --section-py:    100px;
  --container-max: 1200px;
  --nav-height:    72px;

  --radius-sm:   6px;
  --radius-md:   14px;
  --radius-lg:   24px;
  --radius-full: 9999px;

  --shadow-sm:   0 1px 4px rgba(0,0,0,0.5);
  --shadow-md:   0 4px 20px rgba(0,0,0,0.45);
  --shadow-lg:   0 16px 50px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 50px rgba(0,0,0,0.5);

  --transition: 0.3s ease;
}

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

html { 
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background: black;
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { font-family: var(--font-sans); cursor: pointer; }
.logo-name img{
  width: 60px;
  height: 60px;
  border-radius: 100%;
}

/* Blockchain background canvas - full page */
.blockchain-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1000;
  pointer-events: none;
  opacity: 0;
  display: none;
}
/* ============================================================
   Typography Utilities
   ============================================================ */
.font-mono   { font-family: var(--font-mono); }
.text-accent { color: var(--color-accent); }
.text-muted  { color: var(--text-muted); }

.gradient-text {
  background: none;
  -webkit-background-clip: initial;
  -webkit-text-fill-color: initial;
  color: var(--text-primary);
}

/* ============================================================
   Layout
   ============================================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 28px;
  position: relative;
  z-index: 1;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 20px var(--color-primary-glow);
  transition: all var(--transition);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 12px 40px var(--color-primary-glow);
}
.btn-primary:active {
  transform: translateY(-1px) scale(1.02);
}
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-bright);
  transition: all var(--transition);
}
.btn-outline:hover {
  border-color: var(--border-bright);
  color: var(--text-primary);
  transform: translateY(-3px) scale(1.05);
  background: transparent;
  box-shadow: none;
}
.btn-sm   { padding: 9px 20px; font-size: 0.875rem; }
.btn-full { width: 100%; }

.btn-toggle {
  background: var(--color-primary);
  color: #fff;
  padding: 15px 40px;
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: 700;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all var(--transition);
  box-shadow: 0 4px 12px rgba(0,0,0,0.35);
  letter-spacing: 0.02em;
}
.btn-toggle:hover { 
  transform: translateY(-4px) scale(1.06); 
  box-shadow: 0 16px 48px var(--color-primary-glow); 
}
.btn-toggle:active {
  transform: translateY(-2px) scale(1.03);
}
.btn-toggle:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }
.btn-toggle .toggle-icon {
  display: inline-block;
  transition: transform var(--transition);
  font-size: 0.7rem;
}
.btn-toggle.active .toggle-icon { transform: rotate(180deg); }

/* ============================================================
   Tags / Pills
   ============================================================ */
.tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.03);
  color: var(--text-primary);
  font-size: 0.8125rem;
  font-weight: 500;
  border: 1px solid rgba(255,255,255,0.06);
  transition: all var(--transition);
}
.tag:hover  { background: rgba(255,255,255,0.05); }
.tag-sm     { padding: 4px 10px; font-size: 0.75rem; }

/* ============================================================
   Navbar
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
}
.navbar.scrolled {
  background: rgba(10,15,30,0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--border);
}
.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 28px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo { font-family: var(--font-mono); font-size: 1.125rem; font-weight: 600; }
.logo-bracket { color: var(--color-accent); }
.logo-name    { color: var(--color-primary); }

.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--color-primary);
  transition: width var(--transition);
}
.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after { width: 100%; }

.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 6px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: all var(--transition); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--nav-height);
  overflow: hidden;
  z-index: 1;
}
.hero-glow {
  position: absolute;
  top: 10%; left: 50%; transform: translateX(-50%);
  width: 700px; height: 400px;
  background: none;
  pointer-events: none;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding-top: 40px; padding-bottom: 80px;
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: var(--radius-full);
  background: rgba(16,185,129,0.08);
  border: 1px solid rgba(16,185,129,0.22);
  color: var(--color-success);
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: 24px;
}
.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse-dot 2.2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity:1; transform:scale(1); }
  50%       { opacity:.5; transform:scale(.8); }
}

/* ============================================================
   Space Floating Effects
   ============================================================ */
@keyframes float-space {
  0%, 100% {
    transform: translateY(0) translateX(0);
  }
  25% {
    transform: translateY(-12px) translateX(3px);
  }
  50% {
    transform: translateY(-20px) translateX(-3px);
  }
  75% {
    transform: translateY(-12px) translateX(4px);
  }
}

@keyframes glow-pulse {
  0%, 100% {
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3), 0 0 40px rgba(34, 211, 238, 0.1);
  }
  50% {
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.5), 0 0 60px rgba(34, 211, 238, 0.2);
  }
}
.hero-title    { font-size: clamp(2.2rem, 5vw, 3.75rem); font-weight: 800; line-height: 1.12; letter-spacing: -0.03em; margin-bottom: 16px; }
.hero-subtitle { font-size: 1rem; color: var(--text-secondary); margin-bottom: 22px; letter-spacing: 0.02em; }
.hero-desc     { font-size: 1.0625rem; color: var(--text-secondary); max-width: 500px; line-height: 1.8; margin-bottom: 36px; }
.hero-actions  { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats    { display: flex; align-items: center; gap: 28px; }
.stat          { display: flex; flex-direction: column; }
.stat-num      { font-size: 1.75rem; font-weight: 800; line-height: 1; letter-spacing: -0.02em; }
.stat-label    { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; letter-spacing: 0.05em; text-transform: uppercase; }
.stat-divider  { width: 1px; height: 36px; background: var(--border-bright); }

/* Code Window */
.hero-visual { 
  display: flex; 
  justify-content: flex-end;
  flex-shrink: 0;
}
.code-window {
  width: 100%; max-width: 480px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  animation: float 5s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}
.code-header {
  display: flex; align-items: center; gap: 7px;
  padding: 13px 18px;
  background: rgba(0,0,0,.25);
  border-bottom: 1px solid var(--border);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-red    { background: #FF5F57; }
.dot-yellow { background: #FEBC2E; }
.dot-green  { background: #28C840; }
.code-filename { font-family: var(--font-mono); font-size: .8125rem; color: var(--text-muted); margin-left: 8px; }
.code-body { padding: 22px 26px; font-family: var(--font-mono); font-size: .875rem; line-height: 1.85; overflow-x: auto; }
.ck { color: #C792EA; }
.cf { color: #82AAFF; }
.cs { color: #C3E88D; }
.cd { color: var(--color-accent); }

.scroll-indicator { position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%); }
.scroll-indicator span {
  display: block; width: 1px; height: 56px;
  background: var(--text-secondary);
  animation: scroll-line 2s ease-in-out infinite;
}
@keyframes scroll-line {
  0%  { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100%{ transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================================
   Section Commons
   ============================================================ */
section { 
  padding: var(--section-py) 0; 
  position: relative;
  z-index: 1;
}

.section-header { text-align: center; margin-bottom: 64px; }
.section-title  { font-size: clamp(1.75rem,4vw,2.75rem); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 16px; }
.section-desc   { font-size: 1.0625rem; color: var(--text-secondary); max-width: 480px; margin: 0 auto; line-height: 1.7; }

/* ============================================================
   About
   ============================================================ */
.about { 
  background: var(--bg-primary);
  overflow: hidden;
}
.about-grid { display: grid; grid-template-columns: auto 1fr; gap: 72px; align-items: start; }
.about-avatar { display: flex; justify-content: center; }
.avatar-wrapper {
  position: relative; width: 260px; height: 280px;
  border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border-bright); box-shadow: var(--shadow-md);
  transition: all var(--transition);
}
.avatar-wrapper:hover {
  border-color: rgba(255,255,255,0.08);
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}
.avatar-wrapper img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(20%); transition: filter var(--transition); }
.avatar-wrapper:hover img { filter: grayscale(0%); }
.avatar-glow {
  position: absolute; inset: 0;
  background: none;
  pointer-events: none;
}

/* ============ GLASS TERMINAL CARD ============ */
.glass-terminal {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1.5px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  overflow: hidden;
  transition: all 0.4s ease;
}

.glass-terminal:hover {
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 
    0 12px 48px rgba(0, 0, 0, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transform: translateY(-6px);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid rgba(16, 185, 129, 0.15);
  backdrop-filter: blur(10px);
}

.terminal-dots {
  display: flex;
  gap: 8px;
}

.terminal-dots .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s ease;
}

.terminal-dots .dot.red {
  background: #EF4444;
}

.terminal-dots .dot.yellow {
  background: #F59E0B;
}

.terminal-dots .dot.green {
  background: #10B981;
}

.terminal-dots .dot:hover {
  transform: scale(1.2);
  box-shadow: 0 0 12px currentColor;
}

.terminal-title {
  color: #10B981;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  text-shadow: none;
  margin-left: auto;
  letter-spacing: 0.5px;
}

 .terminal-content {
  padding: 28px;
  background: var(--bg-card);
  min-height: 400px;
}

.about-content {
  font-family: var(--font-mono);
  color: #10B981;
  line-height: 1.8;
}

.typing-line {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
  min-height: 28px;
  animation: slideIn 0.6s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-15px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.prompt {
  color: #10B981;
  font-weight: 700;
  user-select: none;
  text-shadow: none;
  flex-shrink: 0;
}

.typed-text {
  color: #10B981;
  word-break: break-word;
  white-space: pre-wrap;
  text-shadow: none;
  flex: 1;
}

.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 20px;
  background: #10B981;
  animation: blink 1.2s infinite steps(1);
  box-shadow: none;
  margin-left: 2px;
  flex-shrink: 0;
}

@keyframes blink {
  0%, 49% {
    opacity: 1;
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.6);
  }
  50%, 100% {
    opacity: 0;
    box-shadow: 0 0 4px rgba(16, 185, 129, 0.2);
  }
}

/* Tags in terminal style */
.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(16, 185, 129, 0.15);
}

.tag {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 20px;
  color: #10B981;
  font-size: 0.75rem;
  font-weight: 500;
  font-family: var(--font-mono);
  text-shadow: 0 0 8px rgba(16, 185, 129, 0.25);
  transition: all var(--transition);
}

.tag:hover {
  background: rgba(16, 185, 129, 0.2);
  border-color: rgba(16, 185, 129, 0.4);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
  transform: translateY(-2px);
}

.about-text { font-size: 1.0625rem; color: var(--text-secondary); line-height: 1.85; margin-bottom: 20px; }
.about-text strong { color: var(--text-primary); font-weight: 600; }

/* ============================================================
   Skills
   ============================================================ */
.skills { 
  background: var(--bg-primary);
  overflow: hidden;
}

.skills-toggle-wrapper { display: flex; justify-content: center; margin-bottom: 48px; }

.skills-container {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.65s cubic-bezier(0.4,0,0.2,1), opacity 0.45s ease;
}
.skills-container.open { max-height: 1600px; opacity: 1; }

/* ---- Filter Tabs ---- */
.skill-filters {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.skill-filter {
  padding: 9px 22px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition);
  cursor: pointer;
}
.skill-filter:hover { border-color: var(--border-bright); color: var(--text-primary); }
.skill-filter.active {
  background: var(--bg-card);
  border-color: transparent;
  color: var(--text-primary);
  box-shadow: none;
}

/* ---- Skill Cards Grid ---- */
.skill-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 20px;
  overflow: hidden;
}

.skill-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 16px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
  /* Entry: starts hidden */
  opacity: 0;
  transform: translateY(24px) scale(0.95);
  transition: opacity 0.4s ease, transform 0.4s ease,
              border-color 0.3s ease, box-shadow 0.3s ease;
  animation: float-space 6s ease-in-out infinite;
  animation-delay: calc(var(--i) * 0.2s);
}
/* Entry visible state (set via JS with staggered timeout) */
.skill-card.card-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
/* Filter hidden state */
.skill-card.card-hidden {
  opacity: 0 !important;
  transform: scale(0.82) !important;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease !important;
}
.skill-card.card-visible:not(.card-hidden):hover {
  border-color: var(--border-bright);
  transform: translateY(-12px) scale(1.05);
  box-shadow: var(--shadow-md);
}

/* Category badge */
.skill-cat-badge {
  position: absolute;
  top: 12px; right: 12px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.badge-backend, .badge-database, .badge-frontend, .badge-framework, .badge-tools {
  background: rgba(255,255,255,0.03);
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.06);
}

/* ---- Circular Ring ---- */
.skill-ring-wrap {
  position: relative;
  width: 120px; height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.skill-ring-svg {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
}
.ring-track {
  fill: none;
  stroke: rgba(255,255,255,0.06);
  stroke-width: 5;
}
.ring-fill {
  fill: none;
  stroke-width: 5;
  stroke-linecap: round;
  /* rotate so 0% starts at the top */
  transform: rotate(-90deg);
  transform-origin: 60px 60px;
  transition: stroke-dashoffset 1.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.skill-logo {
  position: relative;
  z-index: 1;
  width: 64px; height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.skill-logo img {
  width: 56px; height: 56px;
  object-fit: contain;
  transition: transform 0.35s ease;
}
.skill-card.card-visible:not(.card-hidden):hover .skill-logo img {
  transform: scale(1.12);
}
/* React icon spinning on hover */
.logo-react { transition: transform 1.2s linear !important; }
.skill-card.card-visible:not(.card-hidden):hover .logo-react {
  animation: react-spin 3s linear infinite;
}
@keyframes react-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Express.js logo invert (white on dark) */
.logo-invert { filter: brightness(0) invert(1); }
.logo-dark-wrap { background: rgba(255,255,255,0.07); border-radius: 10px; padding: 6px; width: 68px; height: 68px; }

/* SQL inline SVG icon */
.sql-db-icon {
  width: 56px; height: 56px;
  display: block;
  filter: drop-shadow(0 4px 8px rgba(51,103,145,0.5));
  transition: transform 0.35s ease;
}
.skill-card.card-visible:not(.card-hidden):hover .sql-db-icon {
  transform: scale(1.12);
}

/* ---- Skill card bottom info ---- */
.skill-card-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.skill-card-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}
.skill-card-pct {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* ============================================================
   Projects
   ============================================================ */
.projects { 
  background: var(--bg-primary);
  overflow: visible;
}

/* ---- Project filter tabs (mirrors skill-filters) ---- */
.project-filters {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.project-filter {
  padding: 9px 22px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition);
  cursor: pointer;
}
.project-filter:hover { border-color: var(--border-bright); color: var(--text-primary); }
.project-filter.active {
  background: var(--bg-card);
  border-color: transparent;
  color: #fff;
  box-shadow: none;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  overflow: visible;
}

/* ---- Project card ---- */
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex; flex-direction: column; gap: 12px;
  transition: all var(--transition);
  /* same filter-animation approach as skill cards */
  opacity: 1;
  transform: none;
  position: relative;
  perspective: 1000px;
  animation: float-space 7s ease-in-out infinite;
}
.project-card.proj-hidden {
  opacity: 0 !important;
  transform: scale(0.88) !important;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease !important;
}
.project-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-8px) scale(1.02) rotateX(2deg);
  box-shadow: var(--shadow-md);
}
.project-card.proj-hidden:hover { transform: scale(0.88) !important; }

/* Project image styling */
.project-img {
  position: relative;
  width: 100%;
  height: 200px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(0,0,0,0.2);
  margin: 8px 0;
  transform: translateZ(0);
  will-change: transform;
}

.project-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(4px) opacity(0.85);
  transition: filter 0.5s cubic-bezier(0.22, 1, 0.36, 1), transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  transform: scale(1) translateZ(0);
  will-change: transform, filter;
}

.project-card:hover .project-img img {
  filter: blur(0px) opacity(1);
  transform: scale(1.08) translateZ(20px);
  animation: pressure-pulse 0.6s ease-out;
}

.project-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: none;
  pointer-events: none;
  transition: background 0.3s ease;
}

.project-card:hover .project-img::after {
  background: none;
}

/* category badge on card */
.project-category-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  align-self: flex-start;
}
.backend-proj, .frontend-proj, .fullstack-proj, .automation-proj {
  background: rgba(255,255,255,0.03);
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.06);
}

.project-header { display: flex; justify-content: space-between; align-items: flex-start; }
.project-icon   { font-size: 2.25rem; line-height: 1; }
.project-links  { display: flex; gap: 10px; }
.project-link {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.9rem; font-weight: 600;
  transition: all var(--transition);
}
.project-link:hover { background: var(--color-primary); border-color: var(--color-primary); color: #fff; transform: scale(1.05); }
.project-title { 
  font-size: 1.0625rem; 
  font-weight: 700; 
  letter-spacing: -0.01em;
  transition: color var(--transition);
}
.project-card:hover .project-title {
  color: var(--color-accent);
}

.project-desc  { 
  font-size: 0.9375rem; 
  color: var(--text-secondary); 
  line-height: 1.72; 
  flex: 1;
  transition: color var(--transition);
}
.project-card:hover .project-desc {
  color: var(--text-primary);
}
.project-tags  { display: flex; flex-wrap: wrap; gap: 8px; }

/* ============================================================
   Contact
   ============================================================ */
.contact { background: var(--bg-primary); }

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
  max-width: 1000px;
  margin: 0 auto;
}

/* ---- Contact Info Panel (Left) ---- */
.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 32px;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  transition: all var(--transition);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}
.contact-info-panel:hover {
  border-color: rgba(255,255,255,0.12);
  background: rgba(13, 20, 36, 0.9);
}

.info-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.info-section-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

/* ---- Contact Items ---- */
.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: all var(--transition);
}
.contact-item:hover {
  transform: translateX(4px);
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid transparent;
  transition: all var(--transition);
}
.contact-icon svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

.phone-icon {
  background: rgba(255,255,255,0.03);
  border-color: rgba(255,255,255,0.06);
}
.phone-icon:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.12);
}

.whatsapp-icon {
  background: rgba(37, 211, 102, 0.12);
  border-color: rgba(37, 211, 102, 0.25);
}
.whatsapp-icon svg {
  color: #25D366;
}
.whatsapp-icon:hover {
  background: rgba(37, 211, 102, 0.2);
  border-color: rgba(37, 211, 102, 0.4);
}

.location-icon {
  background: rgba(251, 146, 60, 0.12);
  border-color: rgba(251, 146, 60, 0.25);
}
.location-icon svg {
  color: #FB923C;
}
.location-icon:hover {
  background: rgba(251, 146, 60, 0.2);
  border-color: rgba(251, 146, 60, 0.4);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.contact-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-weight: 600;
}
.contact-value {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
  transition: color var(--transition);
}
.contact-value:hover {
  color: var(--color-accent);
}

/* ---- Social Links Grid ---- */
.social-links-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.social-link-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition);
}
.social-link-item svg {
  width: 20px;
  height: 20px;
}
.social-link-item:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--color-primary-glow);
}

/* ---- Opportunities Tags ---- */
.opportunities-tags {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 10px;
}
.opp-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  max-width: fit-content;
  border-radius: var(--radius-sm);
  background: rgb(129, 127, 127);
  border: 1px solid rgba(99, 102, 241, 0.25);
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition);
}
.opp-tag::before {
  content: '→';
  opacity: 0;
  margin-left: -6px;
  transition: all var(--transition);
}
.opp-tag:hover {
  background: rgba(99, 102, 241, 0.2);
  border-color: rgba(99, 102, 241, 0.4);
  padding-left: 18px;
}
.opp-tag:hover::before {
  opacity: 1;
  margin-left: 0;
}

/* ---- Contact Form (Right) ---- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  transition: all var(--transition);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}
.contact-form:hover {
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.25);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: capitalize;
}
.form-input {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  transition: all var(--transition);
  outline: none;
}
.form-input::placeholder {
  color: var(--text-muted);
}
.form-input:focus {
  border-color: var(--border-bright);
  background: rgba(255,255,255,0.02);
  box-shadow: 0 0 0 3px rgba(0,0,0,0.12);
}
.form-textarea {
  resize: vertical;
  min-height: 140px;
  font-family: var(--font-sans);
}
.form-textarea:focus {
  border-color: var(--border-bright);
  box-shadow: 0 0 0 3px rgba(0,0,0,0.12);
}

/* ============================================================
   Works Page - Hero
   ============================================================ */

.articles {
  display: flex;
  justify-self: center;
  flex-direction: column;
  z-index: 1000;
  gap: 80px;
  max-width: 90%;
}
.works-hero {
  position: relative;
  padding: calc(var(--nav-height) + 80px) 0 80px;
  background: var(--bg-primary);
  overflow: hidden;
}

.works-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: none;
  pointer-events: none;
}

.works-hero-inner {
  position: relative;
  z-index: 2;
}

.works-hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.works-hero-title {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.works-hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================
   Works Page - Disclaimer Section
   ============================================================ */
.works-disclaimer {
  padding: 48px 0;
  background: transparent;
}

.disclaimer-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px;
  background: rgba(13, 20, 35, 0.7);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: 14px;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  margin: 0 20px;
}


.disclaimer-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  font-weight: 400;
  letter-spacing: 0.3px;
}

/* ============================================================
   Works Page - Main Section
   ============================================================ */
.works-section {
  background: var(--bg-primary);
  padding: var(--section-py) 0;
  overflow: hidden;
}

/* Works Filter Tabs */
.works-filters {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.works-filter {
  padding: 12px 24px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-main);
}

.works-filter:hover {
  border-color: var(--color-primary);
  color: var(--text-primary);
}

.works-filter.active {
  background: var(--bg-card);
  color: white;
  border-color: var(--border);
  box-shadow: none;
}

/* Works Grid Layout */
.works-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
}

/* Work Item Card */
.work-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  animation: fadeInUp 0.6s ease both;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.work-item:hover {
  transform: translateY(-4px);
  border-color: var(--border-bright);
  box-shadow: var(--shadow-md);
}

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

/* Work Image Frame */
.work-image-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  border: 1px solid var(--border-bright);
  transition: all var(--transition);
}

.work-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.work-image-frame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.work-item:hover .work-image-frame img {
  transform: scale(1.05);
}

.work-image-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.4);
  opacity: 0;
  transition: opacity var(--transition);
}

.work-item:hover .work-image-overlay {
  opacity: 1;
}

.work-category-badge {
  padding: 8px 16px;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.work-category-badge.frontend-work {
  background: rgba(255,255,255,0.04);
}

.work-category-badge.fullstack-work {
  background: rgba(255,255,255,0.04);
}

/* Work Content */
.work-content {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.work-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin: 0;
}

/* Work Specs */
.work-specs {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.spec-item {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.spec-label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-accent);
}

.spec-value {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.work-tag {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(255,255,255,0.03);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid rgba(255,255,255,0.06);
  transition: all var(--transition);
}

.work-tag:hover {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.08);
}

.features-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.features-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.features-list li::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* Work Footer & Links */
.work-footer {
  margin-top: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-start;
}

.work-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.work-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(255,255,255,0.03);
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
}

.work-link:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.12);
  transform: translateX(4px);
}

.link-icon {
  font-size: 1rem;
}

.link-text {
  font-weight: 600;
}

/* ============================================================
   Works CTA Section
   ============================================================ */
.works-cta {
  background: var(--bg-primary);
  padding: 80px var(--container-px);
  text-align: center;
  border-top: 1px solid var(--border);
}

.cta-content {
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.cta-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.6;
}

/* ============================================================
   Works Page - Responsive
   ============================================================ */
@media (max-width: 768px) {
  .works-hero {
    padding: calc(var(--nav-height) + 60px) 0 60px;
  }

  .works-hero-title {
    font-size: clamp(1.5rem, 5vw, 2.5rem);
  }

  .works-hero-subtitle {
    font-size: 0.95rem;
  }

  .works-disclaimer {
    padding: 40px 0;
  }

  .disclaimer-text {
    font-size: 0.9rem;
  }

  .works-grid {
    gap: 40px;
  }

  .work-item {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .work-item:nth-child(even) {
    direction: ltr;
  }

  .work-item:nth-child(even) > * {
    direction: ltr;
  }

  .work-image-frame {
    aspect-ratio: 4 / 3;
  }

  .work-title {
    font-size: 1.5rem;
  }

  .features-list {
    grid-template-columns: 1fr;
  }

  .work-footer {
    flex-direction: column;
  }

  .work-actions {
    justify-content: flex-start;
  }

  .works-filters {
    gap: 8px;
    margin-bottom: 48px;
  }

  .works-filter {
    padding: 10px 18px;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .works-hero {
    padding: calc(var(--nav-height) + 40px) 0 40px;
  }

  .works-hero-title {
    font-size: 1.5rem;
    margin-bottom: 16px;
  }

  .works-hero-subtitle {
    font-size: 0.9rem;
  }

  .works-disclaimer {
    padding: 32px 0;
  }

  .disclaimer-text {
    font-size: 0.85rem;
  }

  .work-item {
    gap: 24px;
  }

  .work-specs {
    gap: 16px;
  }

  .spec-item {
    gap: 8px;
  }

  .work-title {
    font-size: 1.25rem;
  }

  .spec-label {
    font-size: 0.75rem;
  }

  .spec-value {
    font-size: 0.85rem;
  }

  .work-tag {
    padding: 5px 12px;
    font-size: 0.75rem;
  }

  .features-list {
    gap: 8px;
  }

  .features-list li {
    font-size: 0.8rem;
  }

  .work-actions {
    gap: 10px;
  }

  .work-link {
    padding: 8px 16px;
    font-size: 0.85rem;
  }

  .cta-title {
    font-size: 1.5rem;
    margin-bottom: 12px;
  }

  .cta-subtitle {
    font-size: 0.95rem;
    margin-bottom: 24px;
  }

  .works-section {
    padding: 60px 0;
  }

  .works-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .work-content {
    gap: 20px;
  }
}

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 32px 0; text-align: center; }
.footer-text { font-size: 0.875rem; color: var(--text-muted); }

/* ============================================================
   Toast
   ============================================================ */
.toast {
  position: fixed;
  bottom: 32px; right: 32px;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  font-size: 0.9375rem; font-weight: 500;
  z-index: 10000;
  transform: translateY(120px); opacity: 0;
  transition: transform 0.4s cubic-bezier(0.22,1,.36,1), opacity 0.3s ease;
  pointer-events: none;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.toast-success { background: var(--color-success); color: #fff; box-shadow: 0 4px 24px rgba(16,185,129,.4); }
.toast.toast-error   { background: #EF4444;              color: #fff; box-shadow: 0 4px 24px rgba(239,68,68,.4); }

/* ============================================================
   Scroll Reveal
   ============================================================ */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.75s ease, transform 0.75s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Mobile: disable reveal animation on smaller viewports due to IntersectionObserver threshold limitations */
@media (max-width: 768px) {
  .reveal {
    opacity: 1 !important;
    transform: translateY(0) !important;
  }
}

/* ============================================================
   Responsive — Large tablets (≤ 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .skill-cards     { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .projects-grid   { grid-template-columns: 1fr 1fr; }
  .about-grid      { grid-template-columns: 1fr; gap: 48px; }
  .avatar-wrapper  { width: 200px; height: 210px; margin: 0 auto; }
  .contact-wrapper { grid-template-columns: 1fr; gap: 40px; }
  .social-links    { flex-direction: row; }
  .social-link:hover { transform: translateY(-4px); }
  
  .project-card:hover {
    transform: translateY(-6px) scale(1.01) rotateX(1deg);
  }
}

/* ============================================================
   Responsive — Tablet portrait / large phones (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root { --section-py: 60px; }

  /* Hero - Show code window but make it smaller */
  .hero-inner   { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual  { 
    width: 100%; 
    max-width: 400px;
    margin: 0 auto;
  }
  .code-window {
    max-width: 100% !important;
  }
  .scroll-indicator { display: none; }

  /* Projects */
  .projects-grid { grid-template-columns: 1fr 1fr; }
  
  .project-card {
    animation: none !important;
  }
  
  .project-img {
    height: 160px;
  }
  
  .project-img img {
    filter: none !important;
    will-change: auto;
  }
  
  .project-card:hover {
    transform: translateY(-4px) scale(1);
    box-shadow: var(--shadow-md);
  }
  
  .project-img img {
    filter: blur(2px) opacity(0.9);
  }
  
  .project-card:hover .project-img img {
    transform: scale(1.05);
  }

  /* Hamburger nav */
  .nav-links {
    position: fixed;
    top: var(--nav-height); left: 0; right: 0;
    background: rgba(10,15,30,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 28px; gap: 20px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-110%); opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
    z-index: 99;
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .hamburger      { display: flex; }
  .nav-link       { font-size: 1.0625rem; padding: 6px 0; }

  /* Skills */
  .skill-cards { grid-template-columns: repeat(3, 1fr); }
  
  .skill-card.card-visible:not(.card-hidden):hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--shadow-md);
  }

  /* About */
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
}

/* ============================================================
   Responsive — Mobile (≤ 600px)
   ============================================================ */
@media (max-width: 600px) {
  :root {
    --section-py: 48px;
  }
  
  /* Hero - Stack vertically on mobile but keep code visible */
  .hero-inner {
    gap: 32px;
  }
  
  .hero-visual {
    max-width: 100%;
    width: 100%;
  }
  
  .code-window {
    max-width: 100% !important;
    border-radius: 8px;
  }
  
  .code-body {
    font-size: 0.75rem;
    padding: 16px 18px;
  }
  
  .code-header {
    padding: 10px 14px;
  }
  
  .projects-grid { grid-template-columns: 1fr; }
  
  .skill-cards { grid-template-columns: repeat(2, 1fr); }
  
  .project-img {
    height: 140px;
  }
  
  .project-card {
    padding: 16px 12px;
    gap: 10px;
    animation: none !important;
  }
  
  .project-img img {
    filter: none !important;
    will-change: auto;
  }
  
  .project-header {
    gap: 8px;
  }
  
  .project-icon {
    font-size: 1.75rem;
  }
  
  .project-card:hover {
    transform: translateY(-3px);
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 0.875rem;
  }
  
  .btn-toggle {
    padding: 12px 28px;
    font-size: 0.9rem;
  }
  
  .hero-title {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
  }
  
  .section-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
  }
  
  /* About section - make image take max width on mobile */
  .about-grid {
    gap: 32px;
  }
  
  .avatar-wrapper {
    width: 100% !important;
    max-width: 300px;
    height: auto !important;
    aspect-ratio: 1;
    margin: 0 auto;
  }
}

/* ============================================================
   Responsive — Small mobile (≤ 480px)
   ============================================================ */
@media (max-width: 480px) {
  :root { --section-py: 52px; }

  .container   { padding: 0 16px; }

  /* Hero */
  .hero-stats  { gap: 16px; }
  .stat-num    { font-size: 1.35rem; }
  .stat-label  { font-size: 0.7rem; }
  .hero-actions{ flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }

  /* Skills */
  .skill-cards { grid-template-columns: repeat(2, 1fr); }
  .skill-ring-wrap { width: 100px; height: 100px; }
  .skill-logo img, .sql-db-icon { width: 46px; height: 46px; }

  /* Projects */
  .projects-grid { grid-template-columns: 1fr; }
  .project-filters { gap: 8px; }
  .project-filter  { padding: 8px 16px; font-size: 0.8125rem; }

  /* Contact */
  .contact-wrapper { gap: 32px; }

  /* Toast */
  .toast { left: 12px; right: 12px; bottom: 16px; text-align: center; }

  /* Section */
  .section-header { margin-bottom: 40px; }

  /* Reduce project card hover effects on mobile */
  .project-card {
    animation: none !important;
  }
  
  .project-card:hover {
    transform: translateY(-2px) scale(1) !important;
    box-shadow: var(--shadow-md);
  }
  
  .project-card:hover .project-img img {
    transform: scale(1.02) !important;
    filter: none !important;
    animation: none !important;
  }
}

/* ============================================================
   Responsive — Very small (≤ 360px)
   ============================================================ */
@media (max-width: 360px) {
  .skill-cards { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .skill-card  { padding: 18px 10px 14px; }
  .hero-badge  { font-size: 0.75rem; padding: 6px 12px; }
  .btn-toggle  { padding: 12px 24px; font-size: 0.9rem; }
}

/* ============================================================
   iOS — prevent zoom on input focus (font-size must be ≥16px)
   ============================================================ */
@media (max-width: 768px) {
  .form-input { font-size: 16px; }
}