/* ============================================
   PRANNESSH KVA — Apple UI Design System
   Monochrome · Refined · Minimal
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&family=JetBrains+Mono:wght@400;500;600&family=Syne:wght@700;800&family=Space+Grotesk:wght@700;800&display=swap');

/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
  /* Palette — pure monochrome */
  --bg:            #000000;
  --bg-raised:     #0a0a0a;
  --surface:       #141414;
  --surface-2:     #1a1a1a;
  --surface-hover: #222222;
  --border:        #252525;
  --border-soft:   #1e1e1e;
  --border-light:  #333333;

  /* Text hierarchy */
  --text:          #f5f5f7;   /* Apple's near-white */
  --text-2:        #ababab;
  --text-3:        #6e6e73;   /* Apple's secondary */
  --text-4:        #3a3a3c;

  /* Accent */
  --accent:        #ffffff;
  --accent-dim:    rgba(255,255,255,0.05);
  --accent-mid:    rgba(255,255,255,0.09);
  --accent-glow:   rgba(255,255,255,0.02);

  /* Typography */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif;
  --mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

  /* Radius — Apple's signature curves */
  --r-xs:  6px;
  --r-sm:  10px;
  --r-md:  14px;
  --r-lg:  20px;
  --r-xl:  28px;
  --r-2xl: 40px;
  --r-full: 9999px;

  /* Elevation */
  --e0: none;
  --e1: 0 1px 3px rgba(0,0,0,0.5);
  --e2: 0 4px 16px rgba(0,0,0,0.4), 0 1px 3px rgba(0,0,0,0.6);
  --e3: 0 12px 40px rgba(0,0,0,0.5), 0 4px 12px rgba(0,0,0,0.7);
  --e4: 0 24px 64px rgba(0,0,0,0.6), 0 8px 24px rgba(0,0,0,0.8);

  /* Motion — Apple's easing */
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --sharp:  cubic-bezier(0.4, 0, 0.2, 1);

  --fast:   0.15s;
  --normal: 0.28s;
  --slow:   0.5s;
}

/* ============================================
   RESET
   ============================================ */
*, *::before, *::after {
  margin: 0; padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  cursor: none;
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.6s var(--smooth), transform 0.6s var(--smooth);
}

body.page-loaded { opacity: 1; transform: translateY(0); }

::selection { background: rgba(255,255,255,0.15); color: #fff; }

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

button { font-family: var(--font); cursor: pointer; }

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }

/* ============================================
   CUSTOM CURSOR
   ============================================ */
#custom-cursor {
  position: fixed;
  top: 0; left: 0;
  width: 12px; height: 12px;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.4);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 6px rgba(0,0,0,0.6);
}

/* ============================================
   VIEW TRANSITIONS
   ============================================ */
@view-transition { navigation: auto; }
::view-transition-old(root) { animation: vto 0.35s var(--smooth) both; }
::view-transition-new(root) { animation: vti 0.35s var(--smooth) both; }

@keyframes vto {
  to { opacity: 0; transform: scale(0.98) translateY(-10px); filter: blur(4px); }
}
@keyframes vti {
  from { opacity: 0; transform: scale(1.02) translateY(10px); filter: blur(4px); }
}

/* ============================================
   NAVBAR — Apple pill style
   ============================================ */
.navbar {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  padding: 6px 8px;
  border-radius: var(--r-full);
  background: rgba(10, 10, 10, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 0 0 0.5px rgba(255,255,255,0.04) inset, var(--e2);
  transition: all var(--normal) var(--smooth);
  width: max-content;
  max-width: calc(100vw - 32px);
}

.navbar.scrolled {
  background: rgba(6, 6, 6, 0.9);
  box-shadow: 0 0 0 0.5px rgba(255,255,255,0.06) inset, var(--e3);
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-links a {
  display: block;
  padding: 7px 16px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-3);
  border-radius: var(--r-full);
  transition: color var(--fast) var(--sharp),
              background var(--fast) var(--sharp);
  white-space: nowrap;
  letter-spacing: -0.005em;
}

.nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.07); }
.nav-links a.active { color: var(--text); background: rgba(255,255,255,0.12); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
  margin-left: 4px;
}

.nav-toggle span {
  display: block;
  width: 18px; height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--normal) var(--smooth);
}

/* ============================================
   HERO — Apple homepage style
   ============================================ */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 140px 24px 100px;
  position: relative;
  overflow: hidden;
}

/* Very subtle grid */
.hero-grid-bg {
  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: 80px 80px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, black 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, black 0%, transparent 80%);
  pointer-events: none;
}

/* Top gradient glow */
.hero::before {
  content: '';
  position: absolute;
  top: -10%; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 500px;
  background: radial-gradient(ellipse at center,
    rgba(255,255,255,0.03) 0%,
    transparent 65%);
  pointer-events: none;
}

.hero-content {
  position: relative; z-index: 1;
  max-width: 720px;
}

/* Badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-full);
  font-size: 0.75rem;
  font-family: var(--mono);
  color: var(--text-3);
  margin-bottom: 32px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-badge .dot {
  width: 5px; height: 5px;
  background: #30d158;  /* Apple green */
  border-radius: 50%;
  animation: dot-pulse 2.5s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%,100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(48,209,88,0.4); }
  50% { transform: scale(1.2); box-shadow: 0 0 0 4px rgba(48,209,88,0); }
}

/* Hero name — Apple gradient typography */
.hero-name {
  font-size: clamp(3rem, 9vw, 6rem);
  font-weight: 900;
  letter-spacing: -0.055em;
  line-height: 1;
  margin-bottom: 16px;
  background: linear-gradient(180deg, #ffffff 30%, #666666 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-3);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.hero-typing {
  font-family: var(--mono);
  font-size: 0.875rem;
  color: var(--text-4);
  min-height: 1.5em;
  margin-bottom: 40px;
  letter-spacing: 0.02em;
}

.hero-typing .cursor {
  display: inline-block;
  width: 1.5px; height: 0.95em;
  background: var(--text-3);
  margin-left: 1px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.hero-cta {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 52px;
}

/* Social icons */
.hero-socials {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.hero-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--r-full);
  font-size: 0.85rem;
  color: var(--text);
  transition: all var(--fast) var(--smooth);
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hero-social-link:hover {
  border-color: rgba(255,255,255,0.3);
  color: #fff;
  background: rgba(0, 0, 0, 0.85);
  transform: translateY(-2px);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column;
  align-items: center; gap: 6px;
  color: var(--text-4);
  font-size: 0.65rem;
  font-family: var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  animation: float 3s ease-in-out infinite;
}

.scroll-indicator .line {
  width: 1px; height: 24px;
  background: linear-gradient(to bottom, var(--text-4), transparent);
}

@keyframes float {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ============================================
   BUTTONS — Apple pill style
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 24px;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--r-full);
  border: none;
  cursor: pointer;
  font-family: var(--font);
  letter-spacing: -0.01em;
  transition: all var(--fast) var(--smooth);
  white-space: nowrap;
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
}

.btn-primary:hover {
  background: #e0e0e0;
  color: #000;
  transform: scale(1.02);
  box-shadow: 0 4px 20px rgba(255,255,255,0.1);
}

.btn-secondary {
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
  transform: scale(1.02);
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
  padding: 96px 24px;
  position: relative;
}

.section-inner {
  max-width: 1040px;
  margin: 0 auto;
}

/* Apple eyebrow label */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-4);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 8px;
}

.section-label::before {
  content: '';
  width: 18px; height: 1px;
  background: var(--border-light);
}

/* Apple-style large bold title */
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.08;
  color: var(--text);
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-3);
  max-width: 540px;
  line-height: 1.75;
  margin-bottom: 48px;
}

.section-divider {
  width: 100%; height: 1px;
  background: linear-gradient(to right, transparent, var(--border) 20%, var(--border) 80%, transparent);
}

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--smooth),
              transform 0.6s var(--smooth);
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.07s; }
.reveal-delay-2 { transition-delay: 0.14s; }
.reveal-delay-3 { transition-delay: 0.21s; }
.reveal-delay-4 { transition-delay: 0.28s; }

/* Apple word reveal */
.apple-text-reveal { display: inline; }
.apple-text-reveal .word {
  display: inline-block;
  opacity: 0.08;
  transform: translateY(3px);
  transition: opacity 0.9s var(--smooth), transform 0.9s var(--smooth);
}
.apple-text-reveal.revealed .word {
  opacity: 1;
  transform: none;
}

/* ============================================
   APPLE CARDS — shared card DNA
   ============================================ */
.apple-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  transition: border-color var(--normal) var(--sharp),
              transform var(--normal) var(--smooth),
              box-shadow var(--normal) var(--smooth);
  position: relative;
  overflow: hidden;
}

/* Subtle top-edge highlight */
.apple-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.07), transparent);
  pointer-events: none;
}

.apple-card:hover {
  border-color: var(--border-light);
  transform: translateY(-3px);
  box-shadow: var(--e3);
}

/* ============================================
   STAT CARDS
   ============================================ */
.stat-card {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  transition: all var(--normal) var(--smooth);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.06), transparent);
}

.stat-card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: var(--e2);
}

.stat-number {
  font-size: 2.25rem;
  font-weight: 900;
  letter-spacing: -0.05em;
  color: var(--text);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.6875rem;
  font-family: var(--mono);
  color: var(--text-3);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.stats-grid-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 40px;
}
@media (max-width: 920px) { .stats-grid-container { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 500px) { .stats-grid-container { grid-template-columns: 1fr; } }

/* ============================================
   GITHUB STREAK WIDGET
   ============================================ */
.streak-container {
  margin: 40px auto 0;
  max-width: 600px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  text-align: center;
}

.streak-container img {
  display: inline-block;
  max-width: 100%;
  border-radius: var(--r-sm);
  filter: brightness(0.9) contrast(1.1);
}

/* ============================================
   ABOUT
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 52px;
  align-items: start;
}

.about-text p {
  color: var(--text-3);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-text p strong { color: var(--text); font-weight: 600; }

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

/* ============================================
   SKILLS
   ============================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.skill-group {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  transition: all var(--normal) var(--smooth);
}

.skill-group::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.06), transparent);
}

.skill-group:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.skill-group h3 {
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* ============================================
   TAGS
   ============================================ */
.project-tags { display: flex; flex-wrap: wrap; gap: 5px; }

.tag {
  padding: 4px 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  font-size: 0.6875rem;
  font-family: var(--mono);
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: 0.02em;
  transition: all var(--fast) var(--sharp);
}

.tag:hover { border-color: var(--border-light); color: var(--text-2); }

/* ============================================
   TIMELINE — Apple list style
   ============================================ */
.timeline {
  position: relative;
  padding-left: 28px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 10px; bottom: 10px;
  width: 1px;
  background: linear-gradient(to bottom, var(--border-light), var(--border-soft), transparent);
}

.timeline-item {
  position: relative;
  padding-bottom: 42px;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-item::before {
  content: '';
  position: absolute;
  left: -31px; top: 8px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--bg);
  border: 1.5px solid var(--text-4);
  transition: border-color var(--fast) var(--sharp);
}

.timeline-item:hover::before { border-color: var(--text-2); }

.timeline-date {
  font-family: var(--mono);
  font-size: 0.6875rem;
  color: var(--text-4);
  margin-bottom: 5px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.timeline-role {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
  letter-spacing: -0.02em;
}

.timeline-company {
  font-size: 0.875rem;
  color: var(--text-3);
  margin-bottom: 8px;
  font-weight: 500;
}

.timeline-desc {
  color: var(--text-3);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 560px;
}

/* Fold/unfold */
.fold-indicator {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.6875rem;
  font-family: var(--mono);
  color: var(--text-4);
  cursor: pointer;
  margin-bottom: 5px;
  user-select: none;
  transition: color var(--fast) var(--sharp);
}
.fold-indicator:hover { color: var(--text-2); }
.fold-indicator svg { transition: transform var(--normal) var(--smooth); }
.unfolded .fold-indicator svg { transform: rotate(180deg); }

.timeline-desc, .cert-details {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.4s var(--smooth), opacity 0.4s var(--smooth);
}
.unfolded .timeline-desc, .unfolded .cert-details { max-height: 400px; opacity: 1; }

/* ============================================
   PROJECTS — Apple-style large card grid
   ============================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-xl);
  padding: 32px;
  transition: border-color var(--normal) var(--sharp),
              transform var(--normal) var(--smooth),
              box-shadow var(--normal) var(--smooth);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  text-decoration: none;
}

/* Hover shimmer */
.project-card::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--normal) var(--sharp);
  pointer-events: none;
}

/* Top edge highlight */
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.07), transparent);
  pointer-events: none;
}

.project-card:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--e3);
}

.project-card:hover::after { opacity: 1; }

.project-card.featured {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}

.project-icon {
  width: 44px; height: 44px;
  border-radius: var(--r-sm);
  background: var(--accent-dim);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 20px;
  flex-shrink: 0;
}

.project-number {
  font-family: var(--mono);
  font-size: 0.6875rem;
  color: var(--text-4);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.project-name {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1.2;
}

.project-desc {
  font-size: 0.9rem;
  color: var(--text-3);
  line-height: 1.7;
  margin-bottom: 18px;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-3);
  transition: all var(--fast) var(--smooth);
  margin-top: auto;
}

a.project-card:hover .project-link,
.project-card:hover .project-link-standalone { color: var(--text); }

.project-link-standalone {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-3);
  transition: all var(--fast) var(--smooth);
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  background: var(--accent-dim);
}

.project-link-standalone:hover {
  color: var(--text);
  border-color: var(--border-light);
  background: var(--accent-mid);
}

/* ============================================
   EDUCATION
   ============================================ */
.education-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.edu-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: 24px;
  transition: all var(--normal) var(--smooth);
}

.edu-card:hover { border-color: var(--border-light); transform: translateY(-2px); }
.edu-card.main { grid-column: span 2; display: flex; gap: 20px; align-items: flex-start; }

.edu-icon {
  width: 44px; height: 44px;
  border-radius: var(--r-sm);
  background: var(--accent-dim);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; flex-shrink: 0;
}

.edu-details h3 { font-size: 1rem; font-weight: 700; margin-bottom: 3px; letter-spacing: -0.02em; }
.edu-details .degree { font-size: 0.875rem; color: var(--text-3); margin-bottom: 3px; }
.edu-details .period { font-family: var(--mono); font-size: 0.6875rem; color: var(--text-4); letter-spacing: 0.04em; }
.edu-grade { font-family: var(--mono); font-size: 0.8125rem; color: var(--text); font-weight: 600; margin-top: 4px; }

/* ============================================
   CERTIFICATIONS
   ============================================ */
.cert-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
}

.cert-filter, .timeline-filter {
  padding: 6px 16px;
  background: var(--accent-dim);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-3);
  cursor: pointer;
  transition: all var(--fast) var(--sharp);
  letter-spacing: -0.005em;
}

.cert-filter:hover, .timeline-filter:hover { border-color: var(--border-light); color: var(--text-2); }
.cert-filter.active, .timeline-filter.active { background: var(--text); color: var(--bg); border-color: var(--text); font-weight: 600; }

#cert-search:focus {
  border-color: var(--border-light) !important;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.05);
}

.certs-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 8px;
}

.cert-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  transition: all var(--fast) var(--sharp);
}

.cert-item.cert-hidden { display: none; }

@keyframes certIn {
  from { opacity: 0; transform: scale(0.97) translateY(8px); }
  to   { opacity: 1; transform: none; }
}
.cert-item.cert-animate-in { animation: certIn 0.25s var(--smooth) forwards; }

.cert-item:hover { border-color: var(--border-light); background: var(--surface-hover); }

.cert-logo {
  width: 32px; height: 32px;
  border-radius: var(--r-xs);
  background: var(--accent-dim);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700;
  color: var(--text-3); flex-shrink: 0;
  font-family: var(--mono);
}

.cert-info h4 { font-size: 0.875rem; font-weight: 600; color: var(--text); letter-spacing: -0.01em; margin-bottom: 2px; }
.cert-info p { font-size: 0.75rem; color: var(--text-3); }

/* ============================================
   PUBLICATIONS
   ============================================ */
.publications-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.pub-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-xl);
  padding: 28px;
  transition: all var(--normal) var(--smooth);
  display: block;
}

.pub-card:hover { border-color: var(--border-light); transform: translateY(-3px); box-shadow: var(--e2); }
.pub-type { font-family: var(--mono); font-size: 0.6875rem; font-weight: 600; color: var(--text-4); text-transform: uppercase; letter-spacing: 0.15em; margin-bottom: 10px; }
.pub-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; letter-spacing: -0.02em; color: var(--text); }
.pub-platform { font-size: 0.8125rem; color: var(--text-3); }
.pub-card:hover .pub-platform { color: var(--text-2); }

/* ============================================
   POSTS — LinkedIn feed cards
   ============================================ */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.post-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-xl);
  padding: 28px;
  transition: all var(--normal) var(--smooth);
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
}

.post-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.07), transparent);
}

.post-card:hover {
  border-color: var(--border-light);
  transform: translateY(-3px);
  box-shadow: var(--e3);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.post-avatar {
  width: 36px; height: 36px;
  border-radius: var(--r-full);
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.875rem; font-weight: 700;
  color: var(--text-3);
  flex-shrink: 0;
}

.post-author-info .name { font-size: 0.875rem; font-weight: 600; color: var(--text); }
.post-author-info .time { font-size: 0.6875rem; font-family: var(--mono); color: var(--text-4); letter-spacing: 0.04em; }

.post-content {
  font-size: 0.9375rem;
  color: var(--text-2);
  line-height: 1.7;
  flex: 1;
}

.post-content strong { color: var(--text); font-weight: 600; }

.post-tags { display: flex; flex-wrap: wrap; gap: 5px; }

.post-footer {
  padding-top: 14px;
  border-top: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.post-stats {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.75rem;
  font-family: var(--mono);
  color: var(--text-4);
  letter-spacing: 0.04em;
}

.post-stats span { display: flex; align-items: center; gap: 4px; }

.post-read-link {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  background: var(--accent-dim);
  transition: all var(--fast) var(--smooth);
}

a.post-card:hover .post-read-link,
.post-read-link:hover {
  color: var(--text);
  border-color: var(--border-light);
  background: var(--accent-mid);
}

/* ============================================
   GYM BENTO
   ============================================ */
.gym-bento {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-auto-rows: minmax(280px, auto);
  gap: 10px;
  max-width: 880px;
  margin: 52px auto;
}

.bento-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  box-shadow: var(--e2);
  transition: transform 0.4s var(--spring), box-shadow 0.4s var(--smooth);
  background: var(--surface);
}

.bento-item:hover { transform: translateY(-3px) scale(1.01); box-shadow: var(--e4); z-index: 2; }
.bento-item img { width: 100%; height: 100%; object-fit: cover; opacity: 0.8; transition: transform 0.6s var(--spring), opacity 0.4s; }
.bento-item:hover img { transform: scale(1.05); opacity: 1; }
.bento-item.item-large { grid-column: span 2; }

.bento-overlay {
  position: absolute;
  bottom: 18px; left: 18px;
  color: rgba(255,255,255,0.9);
  font-size: 0.6875rem;
  font-family: var(--mono);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  z-index: 5;
  text-shadow: 0 2px 12px rgba(0,0,0,0.9);
  transition: transform 0.4s var(--spring);
  pointer-events: none;
}

.bento-item:hover .bento-overlay { transform: translateY(-4px); }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  border-top: 1px solid var(--border-soft);
}

.footer p {
  text-align: center;
  padding: 24px;
  color: var(--text-4);
  font-size: 0.8125rem;
  font-family: var(--mono);
  letter-spacing: 0.02em;
}

/* ============================================
   UTILITY
   ============================================ */
.mt-6  { margin-top: 24px; }
.mt-8  { margin-top: 32px; }
.mt-12 { margin-top: 48px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.justify-center { justify-content: center; }
.z-10 { z-index: 10; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 920px) {
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-card.featured { grid-column: span 1; grid-template-columns: 1fr; }
  .publications-grid { grid-template-columns: 1fr; }
  .posts-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .education-grid { grid-template-columns: 1fr; }
  .edu-card.main { grid-column: span 1; }
}

@media (max-width: 768px) {
  .section { padding: 72px 20px; }
  .hero-name { font-size: clamp(2.4rem, 12vw, 3.5rem); }
  .gym-bento { grid-template-columns: 1fr; grid-auto-rows: 220px; }
  .bento-item.item-large { grid-column: span 1; grid-row: span 1; }

  .nav-links { display: none; }
  .nav-toggle { display: flex; }

  .navbar {
    display: flex;
    padding: 10px 14px;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    width: calc(100vw - 32px);
  }

  .project-card { padding: 24px; }
  .project-card.featured { display: flex; flex-direction: column; gap: 24px; }
  .project-card.featured > div { width: 100%; }
  .projects-grid { gap: 20px; }

  .navbar::after {
    content: 'P.KVA';
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--text-2);
    letter-spacing: -0.02em;
  }

  .navbar.open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: calc(100% + 8px);
    left: 0; right: 0;
    background: rgba(10,10,10,0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--r-lg);
    padding: 8px;
    gap: 2px;
  }

  .navbar.open .nav-links a { padding: 10px 16px; border-radius: var(--r-md); }
  .about-stats { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 500px) {
  .hero { padding: 120px 20px 80px; }
  .certs-list { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr; }
}

/* ============================================
   TYPING FONT - Syne bold editorial
   ============================================ */
.hero-typing {
  font-family: 'Syne', 'Space Grotesk', var(--font);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-2);
  min-height: 2rem;
  margin-bottom: 40px;
  letter-spacing: -0.03em;
  line-height: 1;
}
.hero-typing .cursor {
  display: inline-block;
  width: 2px; height: 1.1rem;
  background: var(--text-2);
  margin-left: 2px;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
  border-radius: 1px;
}

/* NAV LOGO */
.nav-logo { width:28px; height:28px; border-radius:9999px; overflow:hidden; border:1.5px solid rgba(255,255,255,0.15); flex-shrink:0; margin-right:4px; }
.nav-logo img { width:100%; height:100%; object-fit:cover; object-position:top center; }
.nav-logo-fallback { width:100%; height:100%; background:var(--surface-2); display:flex; align-items:center; justify-content:center; font-size:0.65rem; font-weight:800; color:var(--text-2); }

/* SAGUS COMMENTS */
.sagus-comments { margin-top:32px; border-top:1px solid var(--border-soft); padding-top:24px; }
.sagus-comments-label { font-family:var(--mono); font-size:0.6875rem; color:var(--text-4); text-transform:uppercase; letter-spacing:0.14em; margin-bottom:16px; }
.sagus-comments-wrapper { display: flex; gap: 16px; flex-direction: row; align-items: stretch; justify-content: center; }
.comment-screenshot { border-radius: 28px; overflow:hidden; border:1px solid var(--border-light); outline: 2px solid transparent; transition:all var(--normal) var(--smooth); flex: 1; background: var(--surface-2); box-shadow: var(--e1); display: flex; flex-direction: column; }
.comment-screenshot:hover { border-color: rgba(255,255,255,0.25); transform:translateY(-4px); box-shadow: var(--e3); }
.comment-screenshot img { width:100%; height:100%; object-fit:cover; display:block; }


/* HIGHLIGHTS BENTO */
.highlights-bento { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin-top:48px; }
.highlight-card { background:var(--surface); border:1px solid var(--border-soft); border-radius:var(--r-lg); padding:22px; position:relative; overflow:hidden; transition:all var(--normal) var(--smooth); }
.highlight-card::before { content:''; position:absolute; top:0; left:0; right:0; height:1px; background:linear-gradient(to right,transparent,rgba(255,255,255,0.07),transparent); }
.highlight-card:hover { border-color:var(--border-light); transform:translateY(-2px); box-shadow:var(--e2); }
.highlight-card.wide { grid-column:span 2; }
.highlight-icon { font-size:1.3rem; margin-bottom:12px; }
.highlight-title { font-size:0.875rem; font-weight:700; color:var(--text); margin-bottom:4px; letter-spacing:-0.01em; }
.highlight-value { font-size:0.8125rem; color:var(--text-3); line-height:1.55; }
.highlight-badge { display:inline-flex; align-items:center; gap:4px; padding:2px 8px; background:rgba(255,215,0,0.07); border:1px solid rgba(255,215,0,0.2); border-radius:9999px; font-size:0.6875rem; font-family:var(--mono); color:#ffd60a; letter-spacing:0.04em; font-weight:600; margin-top:6px; }

/* CV UPLOAD */
.cv-upload-area { border:1.5px dashed var(--border-light); border-radius:var(--r-lg); padding:32px; text-align:center; transition:all var(--normal) var(--smooth); position:relative; }
.cv-upload-area:hover { border-color:var(--text-4); background:var(--accent-dim); }
.cv-upload-area input[type="file"] { position:absolute; inset:0; opacity:0; cursor:pointer; width:100%; height:100%; }
.cv-download-btn { display:inline-flex; align-items:center; gap:7px; padding:10px 22px; background:var(--text); color:var(--bg); border-radius:9999px; font-size:0.875rem; font-weight:700; text-decoration:none; transition:all var(--fast) var(--smooth); }
.cv-download-btn:hover { background:#e0e0e0; transform:scale(1.02); }
.deans-list-badge { display:inline-flex; align-items:center; gap:6px; padding:3px 10px; background:rgba(255,215,0,0.07); border:1px solid rgba(255,215,0,0.2); border-radius:9999px; font-size:0.6875rem; font-family:var(--mono); color:#ffd60a; font-weight:600; margin-top:8px; }

@media (max-width:920px) {
  .highlights-bento { grid-template-columns:repeat(2,1fr); }
  .highlight-card.wide { grid-column:span 1; }
}
@media (max-width:500px) { .highlights-bento { grid-template-columns:1fr; } }

/* ── Flip Card ────────────────────────────── */
.flip-card {
  perspective: 1000px;
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
}
.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s var(--smooth);
  transform-style: preserve-3d;
  min-height: 280px;
}
.project-card.flip-card {
  min-height: 280px;
  display: block;
}
.flip-card:hover .flip-card-inner {
  transform: rotateY(180deg);
}
.flip-card-front, .flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  border-radius: var(--r-md);
  border: 1px solid var(--border-soft);
  background: var(--surface);
  padding: 24px;
  display: flex;
  flex-direction: column;
}
.flip-card-front {
  z-index: 2;
  transform: rotateY(0deg);
}
.flip-card-back {
  transform: rotateY(180deg);
  background: var(--surface-2);
}

/* ── Apple-Style Background Animations ───────────────── */
@keyframes bgPulse {
  0% { transform: scale(1); filter: brightness(1); }
  100% { transform: scale(1.03); filter: brightness(0.85); }
}
.gym-bento img {
  animation: bgPulse 6s infinite alternate ease-in-out;
}
.pub-image img {
  animation: bgPulse 8s infinite alternate ease-in-out;
}

/* ============================================
   APPLE UI FLOATING CARDS (EXPERIENCE)
   ============================================ */
.apple-cards-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 48px;
}

.apple-card {
  flex: 1 1 calc(33.333% - 20px);
  min-width: 280px;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 28px;
  transition: all var(--normal) var(--smooth);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.apple-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.15), transparent);
}

.apple-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.12);
}

.apple-card .company-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.apple-card .company-logo {
  flex-shrink: 0;
}

.apple-card .company-info {
  display: flex;
  flex-direction: column;
}

.apple-card .role-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
  letter-spacing: -0.01em;
}

.apple-card .company-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-3);
}

.apple-card .duration {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-4);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.apple-card .description {
  font-size: 0.9rem;
  color: var(--text-3);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

@media (max-width: 920px) {
  .apple-card {
    flex: 1 1 calc(50% - 20px);
  }
}

@media (max-width: 600px) {
  .apple-card {
    flex: 1 1 100%;
  }
}