/* ============================================================
   KARAN PANCHAL — PORTFOLIO
   style.css
   ============================================================ */

/* ---------- CSS VARIABLES ---------- */
:root {
  /* Colors */
  --clr-bg:          #080c14;
  --clr-bg-alt:      #0d1117;
  --clr-surface:     #111827;
  --clr-surface-2:   #1a2235;
  --clr-border:      rgba(255,255,255,0.07);
  --clr-border-glow: rgba(59,130,246,0.25);

  --clr-blue:        #3b82f6;
  --clr-blue-light:  #60a5fa;
  --clr-purple:      #8b5cf6;
  --clr-cyan:        #06b6d4;
  --clr-cyan-light:  #67e8f9;

  --clr-text:        #f1f5f9;
  --clr-text-muted:  #8b95a8;
  --clr-text-dim:    #4b5563;

  --clr-white:       #ffffff;

  /* Gradients */
  --grad-primary:    linear-gradient(135deg, var(--clr-blue) 0%, var(--clr-purple) 100%);
  --grad-hero:       radial-gradient(ellipse 80% 60% at 70% 40%, rgba(59,130,246,0.12) 0%, transparent 70%),
                     radial-gradient(ellipse 60% 50% at 20% 80%, rgba(139,92,246,0.08) 0%, transparent 60%),
                     linear-gradient(180deg, #080c14 0%, #0a0f1c 100%);

  /* Typography */
  --font-sans:       'Inter', -apple-system, 'Segoe UI', system-ui, sans-serif;
  --font-mono:       'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --section-pad:     7rem 0;
  --container-max:   1160px;
  --container-pad:   0 1.5rem;

  /* Radius */
  --radius-sm:       6px;
  --radius-md:       12px;
  --radius-lg:       20px;
  --radius-xl:       28px;

  /* Transitions */
  --transition:      0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);

  /* Nav */
  --nav-height:      68px;
  --nav-height-sm:   56px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-sans);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

:focus-visible {
  outline: 2px solid var(--clr-blue);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---------- SCROLLBAR ---------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb { background: var(--clr-surface-2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--clr-blue); }

/* ---------- UTILITIES ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-pad);
}

.accent { background: var(--grad-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.section { padding: var(--section-pad); }

/* ---------- REVEAL ANIMATIONS ---------- */
.reveal-up,
.reveal-left,
.reveal-right {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s var(--transition-slow), transform 0.65s var(--transition-slow);
}
.reveal-left  { transform: translateX(-32px); }
.reveal-right { transform: translateX(32px); }

.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible {
  opacity: 1;
  transform: translate(0, 0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* ---------- SECTION HEADER ---------- */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-blue);
  display: inline-block;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.75rem;
  color: var(--clr-white);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--clr-text-muted);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition);
  background: rgba(255,255,255,0.08);
}
.btn:hover::before { opacity: 1; }

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(59,130,246,0.28);
}
.btn-primary:hover {
  box-shadow: 0 6px 28px rgba(59,130,246,0.45);
}

.btn-secondary {
  background: transparent;
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  border-color: var(--clr-blue);
  color: var(--clr-blue-light);
  box-shadow: 0 0 16px rgba(59,130,246,0.18);
}

.btn-sm { padding: 0.6rem 1.25rem; font-size: 0.85rem; }

.btn svg { transition: transform var(--transition); flex-shrink: 0; }
.btn:hover svg { transform: translateX(3px); }

/* ---------- SOCIAL ICONS ---------- */
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  transition: var(--transition);
  backdrop-filter: blur(6px);
}
.social-icon:hover {
  color: var(--clr-white);
  border-color: var(--clr-blue);
  transform: translateY(-3px) scale(1.08);
  box-shadow: 0 0 16px rgba(59,130,246,0.3);
}

/* ---------- TAGS ---------- */
.tag {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  transition: var(--transition);
}
.tag:hover { border-color: var(--clr-blue); color: var(--clr-blue-light); }

.tech-tag {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 500;
  font-family: var(--font-mono);
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  color: var(--clr-blue-light);
  white-space: nowrap;
}

.tech-tag--sm { font-size: 0.7rem; padding: 0.2rem 0.55rem; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: var(--transition-slow);
}

.navbar.scrolled {
  height: var(--nav-height-sm);
  background: rgba(8,12,20,0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--clr-border);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
}

.logo-text {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  padding: 0.35rem 0.75rem;
  border: 1px solid rgba(59,130,246,0.25);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-logo:hover .logo-text {
  border-color: var(--clr-blue);
  box-shadow: 0 0 14px rgba(59,130,246,0.2);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 50%; right: 50%;
  height: 2px;
  background: var(--clr-blue);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-link:hover { color: var(--clr-white); }
.nav-link:hover::after,
.nav-link.active::after { left: 0.85rem; right: 0.85rem; }
.nav-link.active { color: var(--clr-white); }

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-toggle:hover { background: var(--clr-surface); }

.toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-text-muted);
  border-radius: 2px;
  transition: var(--transition);
}

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

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100dvh;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--grad-hero);
  padding-top: var(--nav-height);
}

/* Canvas particles */
.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* Subtle dot grid */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

/* Background quote */
.hero-bg-quote {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: clamp(3.5rem, 9vw, 9rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  white-space: nowrap;
  color: rgba(255,255,255,0.028);
  pointer-events: none;
  user-select: none;
  line-height: 1;
  text-align: center;
  width: 100%;
}

.hero-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 4rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 440px;
  align-items: center;
  gap: 4rem;
  position: relative;
  z-index: 1;
  width: 100%;
}

/* ---- Hero content ---- */
.hero-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--clr-blue);
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeSlideUp 0.7s 0.2s forwards;
}

.hero-name {
  font-size: clamp(3.2rem, 7vw, 5.8rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 0.95;
  color: var(--clr-white);
  margin-bottom: 1.25rem;
  opacity: 0;
  animation: fadeSlideUp 0.7s 0.35s forwards;
}

.name-accent {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-role {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
  opacity: 0;
  animation: fadeSlideUp 0.7s 0.5s forwards;
}

.role-text {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--clr-text-muted);
}

.hero-desc {
  font-size: 1rem;
  color: var(--clr-text-muted);
  max-width: 500px;
  line-height: 1.75;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeSlideUp 0.7s 0.65s forwards;
}

/* Keyword rotator */
.hero-keywords {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
  height: 1.8rem;
  overflow: hidden;
  opacity: 0;
  animation: fadeSlideUp 0.7s 0.8s forwards;
}

.keyword-prefix {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--clr-cyan);
  flex-shrink: 0;
}

.keyword-rotator {
  position: relative;
  height: 1.6rem;
  min-width: 200px;
  overflow: hidden;
}

.keyword {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--clr-cyan-light);
  position: absolute;
  top: 0; left: 0;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  white-space: nowrap;
  line-height: 1.6rem;
}
.keyword.active {
  opacity: 1;
  transform: translateY(0);
}

.hero-subline {
  font-size: 0.9rem;
  color: var(--clr-text-dim);
  font-style: italic;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeSlideUp 0.7s 0.85s forwards;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeSlideUp 0.7s 1s forwards;
}

.hero-social {
  display: flex;
  gap: 0.6rem;
  opacity: 0;
  animation: fadeSlideUp 0.7s 1.15s forwards;
}

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

.hero-image-frame {
  position: relative;
  width: 360px;
  height: 420px;
}

.image-border {
  position: absolute;
  inset: -3px;
  border-radius: var(--radius-xl);
  background: var(--grad-primary);
  z-index: 0;
}

.image-glow {
  position: absolute;
  inset: -24px;
  border-radius: var(--radius-xl);
  background: radial-gradient(ellipse, rgba(59,130,246,0.2) 0%, transparent 70%);
  z-index: 0;
  animation: glowPulse 4s ease-in-out infinite;
}

.profile-img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius-xl);
  display: block;
  transition: transform 0.5s var(--transition-slow);
}
.hero-image-frame:hover .profile-img {
  transform: scale(1.03) translateY(-4px);
}

.hero-badge {
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 1rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-glow);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-white);
  white-space: nowrap;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.badge-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--clr-cyan);
  animation: badgePulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  opacity: 0;
  animation: fadeIn 1s 1.8s forwards;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--clr-blue));
  animation: scrollLine 2s ease-in-out infinite;
}

.scroll-text {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--clr-text-dim);
  text-transform: uppercase;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  background: var(--clr-bg-alt);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  color: var(--clr-text-muted);
  margin-bottom: 1.1rem;
  font-size: 0.975rem;
  line-height: 1.8;
}
.about-text strong { color: var(--clr-white); font-weight: 600; }

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

/* About cards */
.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.about-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.25rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.about-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad-primary);
  opacity: 0;
  transition: opacity var(--transition);
}
.about-card:hover { border-color: var(--clr-border-glow); transform: translateY(-3px); }
.about-card:hover::before { opacity: 1; }

.about-card--wide { grid-column: 1 / -1; }

.about-card-icon {
  color: var(--clr-blue);
  margin-bottom: 0.75rem;
}
.about-card-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--clr-text-dim);
  margin-bottom: 0.3rem;
}
.about-card-value {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}
.about-card-meta {
  font-size: 0.78rem;
  color: var(--clr-text-muted);
  margin-top: 0.25rem;
}

/* ============================================================
   ACHIEVEMENT BANNER
   ============================================================ */
.achievement-banner {
  background: var(--clr-bg);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  padding: 2rem 0;
}

.achievement-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: var(--clr-surface);
  border: 1px solid rgba(139,92,246,0.25);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  position: relative;
  overflow: hidden;
}

.achievement-glow {
  position: absolute;
  right: -40px; top: -40px;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139,92,246,0.18) 0%, transparent 70%);
  pointer-events: none;
  animation: glowPulse 3.5s ease-in-out infinite;
}

.achievement-icon {
  flex-shrink: 0;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(59,130,246,0.2));
  border: 1px solid rgba(139,92,246,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #d4a017;
}

.achievement-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-purple);
  margin-bottom: 0.25rem;
}
.achievement-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: 0.2rem;
}
.achievement-meta {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills { background: var(--clr-bg); }

.skills-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

/* Skill bars */
.skills-group-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: 0.35rem;
}

.skills-disclaimer {
  font-size: 0.75rem;
  color: var(--clr-text-dim);
  font-style: italic;
  margin-bottom: 1.75rem;
}

.skill-bar-group { display: flex; flex-direction: column; gap: 1rem; }

.skill-bar-item {
  transition: var(--transition);
}
.skill-bar-item:hover .skill-fill {
  filter: brightness(1.15);
}

.skill-bar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.4rem;
}

.skill-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-text);
}
.skill-percent {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--clr-blue-light);
}

.skill-track {
  height: 5px;
  background: var(--clr-surface-2);
  border-radius: 100px;
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  width: 0;
  background: var(--grad-primary);
  border-radius: 100px;
  transition: width 1.1s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-fill.animated { width: var(--pct); }

/* Skill categories */
.skill-category {
  margin-bottom: 1.5rem;
}

.skill-cat-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-text-dim);
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cat-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--clr-blue);
  flex-shrink: 0;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.skill-tag {
  display: inline-block;
  padding: 0.3rem 0.7rem;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  transition: var(--transition);
}
.skill-tag:hover { border-color: var(--clr-blue); color: var(--clr-blue-light); }

.skill-tag--explore {
  background: rgba(6,182,212,0.08);
  border-color: rgba(6,182,212,0.2);
  color: var(--clr-cyan);
}
.skill-tag--explore:hover { border-color: var(--clr-cyan); color: var(--clr-cyan-light); }

.skill-exploring {
  margin-top: 1.5rem;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(6,182,212,0.2);
  border-radius: var(--radius-md);
  background: rgba(6,182,212,0.04);
}

.exploring-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-cyan);
  margin-bottom: 0.6rem;
}

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

/* Featured */
.featured-project {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  margin-bottom: 4rem;
  transition: var(--transition);
}
.featured-project:hover { border-color: var(--clr-border-glow); }
.featured-project::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-primary);
}

.featured-label {
  position: absolute;
  top: 1.2rem; left: 1.5rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--clr-blue);
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 100px;
  padding: 0.2rem 0.65rem;
}

.featured-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 380px;
}

.featured-info {
  padding: 3.5rem 2.5rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.featured-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: #22c55e;
  margin-bottom: 0.75rem;
}

.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #22c55e;
  animation: badgePulse 2s ease-in-out infinite;
}

.featured-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--clr-white);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.featured-subtitle {
  font-size: 0.95rem;
  color: var(--clr-blue-light);
  font-weight: 500;
  margin-bottom: 1rem;
}

.featured-desc {
  font-size: 0.925rem;
  color: var(--clr-text-muted);
  line-height: 1.75;
  margin-bottom: 1.25rem;
  max-width: 440px;
}

.featured-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.75rem;
}

.featured-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }

/* Mockup visual */
.featured-visual {
  background: linear-gradient(135deg, rgba(59,130,246,0.06) 0%, rgba(139,92,246,0.06) 100%);
  border-left: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.featured-mockup {
  width: 100%;
  max-width: 360px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.mockup-bar {
  display: flex;
  gap: 6px;
  padding: 0.65rem 0.85rem;
  background: var(--clr-surface-2);
  border-bottom: 1px solid var(--clr-border);
}
.mockup-bar span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--clr-surface);
}
.mockup-bar span:nth-child(1) { background: #ff5f57; }
.mockup-bar span:nth-child(2) { background: #ffbd2e; }
.mockup-bar span:nth-child(3) { background: #28c940; }

.mockup-body { padding: 1.5rem; }
.mockup-line {
  height: 8px;
  background: var(--clr-surface-2);
  border-radius: 4px;
  margin-bottom: 10px;
}
.mockup-line--title {
  height: 18px;
  background: var(--grad-primary);
  opacity: 0.8;
  width: 60%;
  font-size: 0; /* hide text */
}
.mockup-line--sub {
  height: 10px;
  background: rgba(6,182,212,0.3);
  width: 80%;
}
.mockup-line--short { width: 75%; }
.mockup-line--shorter { width: 55%; }
.mockup-divider {
  height: 1px;
  background: var(--clr-border);
  margin: 1rem 0;
}
.mockup-btn-row { margin-top: 1rem; }
.mockup-btn {
  display: inline-block;
  padding: 0.45rem 1rem;
  background: var(--grad-primary);
  border-radius: var(--radius-sm);
  font-size: 0; /* purely visual */
  height: 30px;
  width: 120px;
  border-radius: 6px;
  opacity: 0.9;
}

/* Other projects */
.other-projects-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: 1.25rem;
}

.project-list { display: flex; flex-direction: column; gap: 1px; }

.project-item {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.4rem 1.5rem;
  cursor: default;
  transition: var(--transition);
  margin-bottom: 0.6rem;
  position: relative;
  overflow: hidden;
}
.project-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--grad-primary);
  opacity: 0;
  transition: opacity var(--transition);
}
.project-item:hover, .project-item:focus {
  border-color: var(--clr-border-glow);
  transform: translateX(4px);
  outline: none;
}
.project-item:hover::before, .project-item:focus::before { opacity: 1; }

.project-item-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
}

.project-item-icon { color: var(--clr-blue); flex-shrink: 0; }

.project-item-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-white);
  flex: 1;
}

.project-item-arrow {
  color: var(--clr-text-dim);
  transition: var(--transition);
  flex-shrink: 0;
}
.project-item:hover .project-item-arrow,
.project-item:focus .project-item-arrow {
  color: var(--clr-blue);
  transform: translateX(4px);
}

.project-item-desc {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
  margin-bottom: 0.75rem;
}

.project-item-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

/* ============================================================
   CERTIFICATES
   ============================================================ */
.certificates { background: var(--clr-bg); }

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
}

.cert-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.cert-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad-primary);
  opacity: 0;
  transition: opacity var(--transition);
}
.cert-card:hover {
  border-color: var(--clr-border-glow);
  transform: translateY(-2px);
}
.cert-card:hover::before { opacity: 1; }

.cert-card-body { display: flex; gap: 1rem; align-items: flex-start; flex: 1; min-width: 0; }

.cert-icon {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-blue-light);
}

.cert-info { min-width: 0; }

.cert-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-white);
  line-height: 1.4;
  margin-bottom: 0.25rem;
}

.cert-issuer {
  font-size: 0.78rem;
  color: var(--clr-text-muted);
  margin-bottom: 0.15rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cert-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--clr-blue);
}

.cert-view-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 500;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  color: var(--clr-blue-light);
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.cert-view-btn:hover {
  background: rgba(59,130,246,0.18);
  border-color: var(--clr-blue);
  box-shadow: 0 0 12px rgba(59,130,246,0.2);
}

/* ============================================================
   CERTIFICATE MODAL
   ============================================================ */
.cert-modal {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}

.cert-modal.open {
  pointer-events: all;
  opacity: 1;
}

.cert-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(4,8,16,0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.cert-modal-content {
  position: relative;
  z-index: 1;
  max-width: 860px;
  width: 100%;
  transform: scale(0.92) translateY(16px);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.cert-modal.open .cert-modal-content { transform: scale(1) translateY(0); }

.cert-modal-close {
  position: absolute;
  top: -44px; right: 0;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}
.cert-modal-close:hover { background: var(--clr-surface); color: var(--clr-white); border-color: var(--clr-blue); }

.cert-modal-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
  display: block;
  box-shadow: 0 30px 80px rgba(0,0,0,0.7);
}

/* ============================================================
   RESUME SECTION
   ============================================================ */
.resume-section { background: var(--clr-bg-alt); }

.resume-card {
  max-width: 680px;
  margin: 0 auto;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: 3rem 2.5rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}
.resume-card:hover { border-color: var(--clr-border-glow); }

.resume-glow {
  position: absolute;
  top: -60px; right: -60px;
  width: 240px; height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.resume-card-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.25rem;
}

.resume-icon { color: var(--clr-blue); opacity: 0.8; }

.resume-text h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--clr-white);
  letter-spacing: -0.02em;
  margin-bottom: 0.2rem;
}
.resume-text p { color: var(--clr-text-muted); font-size: 0.925rem; }
.resume-meta { font-size: 0.8rem !important; color: var(--clr-text-dim) !important; margin-top: 0.15rem; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact { background: var(--clr-bg); }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.85rem;
  max-width: 900px;
  margin: 0 auto;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.4rem;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--grad-primary);
  opacity: 0;
  transition: opacity var(--transition);
}
.contact-card:hover {
  border-color: var(--clr-border-glow);
  transform: translateY(-2px);
}
.contact-card:hover::before { opacity: 1; }

.contact-card-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  display: flex; align-items: center; justify-content: center;
  color: var(--clr-blue-light);
  transition: var(--transition);
}
.contact-card:hover .contact-card-icon {
  background: rgba(59,130,246,0.18);
  box-shadow: 0 0 14px rgba(59,130,246,0.22);
}

.contact-card-info { flex: 1; min-width: 0; }
.contact-card-label { display: block; font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--clr-text-dim); margin-bottom: 0.15rem; }
.contact-card-value { display: block; font-size: 0.875rem; font-weight: 500; color: var(--clr-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.contact-card-arrow {
  color: var(--clr-text-dim);
  font-size: 1.1rem;
  transition: transform var(--transition), color var(--transition);
  flex-shrink: 0;
}
.contact-card:hover .contact-card-arrow { transform: translateX(4px); color: var(--clr-blue); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--clr-bg-alt);
  border-top: 1px solid var(--clr-border);
  padding: 3rem 0 2rem;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--clr-border);
}

.footer-brand { display: flex; flex-direction: column; gap: 0.2rem; }

.footer-logo {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.25rem;
}

.footer-name { font-size: 1rem; font-weight: 700; color: var(--clr-white); }
.footer-tagline { font-size: 0.82rem; color: var(--clr-text-muted); }

.footer-social { display: flex; gap: 0.6rem; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--clr-text-dim);
}

/* ============================================================
   KEYFRAME ANIMATIONS
   ============================================================ */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes glowPulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50%       { opacity: 1;   transform: scale(1.08); }
}

@keyframes badgePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(6,182,212,0.5); }
  50%       { box-shadow: 0 0 0 5px rgba(6,182,212,0); }
}

@keyframes scrollLine {
  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; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  .hero-image-wrap { order: -1; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-social { justify-content: center; }
  .hero-keywords { justify-content: center; }
  .hero-bg-quote { font-size: clamp(2.5rem, 6vw, 6rem); }

  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .skills-layout { grid-template-columns: 1fr; gap: 2.5rem; }

  .featured-inner { grid-template-columns: 1fr; }
  .featured-visual { min-height: 220px; border-left: none; border-top: 1px solid var(--clr-border); }
}

/* Mobile */
@media (max-width: 768px) {
  :root { --section-pad: 5rem 0; }

  /* Nav mobile */
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 0; right: 0;
    height: 100dvh;
    width: min(280px, 80vw);
    background: rgba(8,12,20,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--clr-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 1.5rem 2rem;
    gap: 0.25rem;
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    z-index: 999;
  }

  .nav-links.open { transform: translateX(0); }

  .nav-link { font-size: 1rem; padding: 0.65rem 0.5rem; width: 100%; }
  .nav-link::after { bottom: 0; }

  .hero-image-frame { width: 280px; height: 330px; }
  .hero-name { font-size: clamp(2.8rem, 12vw, 4rem); }
  .hero-bg-quote { font-size: clamp(1.8rem, 7vw, 3.5rem); white-space: normal; text-align: center; padding: 0 1rem; }

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

  .achievement-inner { flex-direction: column; text-align: center; }

  .cert-grid { grid-template-columns: 1fr; }
  .cert-card { flex-direction: column; align-items: flex-start; }

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

  .footer-top { flex-direction: column; align-items: flex-start; }
  .footer-bottom { flex-direction: column; text-align: center; align-items: center; }

  .featured-info { padding: 2.5rem 1.5rem 1.5rem; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .about-cards { grid-template-columns: 1fr; }
  .hero-image-frame { width: 240px; height: 280px; }
  .resume-card { padding: 2rem 1.25rem; }
}