/* =============================================
   NEO-BRUTALIST PORTFOLIO — STYLE SYSTEM
   Fonts: Archivo (headings) / Space Grotesk (body)
   Style: Neubrutalism light theme
   ============================================= */

/* ===== CSS RESET & CUSTOM PROPERTIES ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* --- Neubrutalism Core --- */
  --border-w: 3px;
  --border-color: #1a1a1a;
  --shadow-offset: 5px;
  --shadow-color: #1a1a1a;
  --radius: 0px;

  /* --- Colors --- */
  --bg: #FFFDF7;
  --bg-alt: #FFF9E6;
  --text: #1a1a1a;
  --text-muted: #4a4a4a;

  --yellow: #FFEB3B;
  --yellow-light: #FFF9C4;
  --pink: #FF6B6B;
  --pink-light: #FFE0E0;
  --blue: #4ECDC4;
  --blue-light: #D4F5F2;
  --green: #A8E6CF;
  --green-light: #E8F8F0;
  --purple: #A78BFA;
  --purple-light: #EDE9FE;
  --orange: #FFB347;

  /* --- Typography --- */
  --font-heading: 'Archivo', system-ui, sans-serif;
  --font-body: 'Space Grotesk', system-ui, sans-serif;

  /* --- Spacing --- */
  --section-py: clamp(52px, 7vw, 95px);
  --container-px: clamp(20px, 5vw, 80px);
  --container-max: 1200px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

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

/* ===== UTILITY: NEUBRUTALIST SHADOW ===== */
.nb-shadow {
  border: var(--border-w) solid var(--border-color);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--shadow-color);
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 16px;
  left: 16px;
  right: 16px;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: rgba(255, 253, 247, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: var(--border-w) solid var(--border-color);
  box-shadow: 4px 4px 0 var(--shadow-color);
  border-radius: 12px;
  transition: all 0.2s cubic-bezier(0.2, 0, 0, 1);
}

.navbar.scrolled {
  background: rgba(255, 253, 247, 0.98);
  box-shadow: 5px 5px 0 var(--shadow-color);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  text-decoration: none;
}

.logo-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--yellow);
  border: var(--border-w) solid var(--border-color);
  box-shadow: 2.5px 2.5px 0 var(--shadow-color);
  border-radius: 8px;
  color: var(--border-color);
  flex-shrink: 0;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease, background-color 0.2s ease;
}

.nav-logo:hover .logo-box {
  transform: translate(-2px, -2px) rotate(-4deg);
  box-shadow: 4px 4px 0 var(--shadow-color);
  background: #FFE600;
}

.logo-icon {
  width: 21px;
  height: 21px;
  display: block;
  fill: var(--border-color);
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.nav-logo:hover .logo-icon {
  transform: scale(1.1);
}

.logo-text {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.5px;
  color: var(--text);
  line-height: 1;
  display: inline-block;
  transition: color 0.15s ease;
}

.nav-logo:hover .logo-text {
  color: #000000;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  padding: 8px 16px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  color: var(--text);
  border: 2px solid transparent;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.15s cubic-bezier(0.2, 0, 0, 1);
  cursor: pointer;
}

.nav-link:hover {
  background: var(--yellow-light);
  border-color: var(--border-color);
  transform: translate(-1.5px, -1.5px);
  box-shadow: 2.5px 2.5px 0 var(--shadow-color);
}

.nav-link.active {
  background: var(--yellow);
  border-color: var(--border-color);
  box-shadow: 2px 2px 0 var(--shadow-color);
  font-weight: 800;
}

.nav-link--cta {
  background: var(--pink);
  color: var(--text);
  border: var(--border-w) solid var(--border-color);
  box-shadow: 3px 3px 0 var(--shadow-color);
  font-weight: 800;
  margin-left: 4px;
}

.nav-link--cta:hover {
  background: #ff5252;
  box-shadow: 1.5px 1.5px 0 var(--shadow-color);
  transform: translate(1.5px, 1.5px);
}

/* Mobile Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  cursor: pointer;
}

.toggle-bar {
  display: block;
  width: 28px;
  height: 3px;
  background: var(--border-color);
  transition: all 0.2s ease;
}

/* ===== HERO ===== */
.hero {
  min-height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(108px, 12vh, 126px) var(--container-px) clamp(36px, 5vh, 52px);
  position: relative;
  overflow: hidden;
  background-color: var(--bg);
  background-image: 
    radial-gradient(circle, rgba(26, 26, 26, 0.14) 1.5px, transparent 1.5px),
    linear-gradient(to right, rgba(26, 26, 26, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(26, 26, 26, 0.045) 1px, transparent 1px);
  background-size: 32px 32px, 32px 32px, 32px 32px;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(28px, 3.8vw, 44px);
  align-items: center;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-content-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: 18px;
  position: relative;
  z-index: 2;
}

.hero-title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2.3rem, 4vw, 3.6rem);
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 0px;
  text-align: left;
}

.highlight {
  position: relative;
  display: inline;
  padding: 0 6px;
}

.highlight--yellow {
  background: var(--yellow);
  border: 2px solid var(--border-color);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.highlight--blue {
  background: var(--blue);
  border: 2px solid var(--border-color);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.highlight--pink {
  background: var(--pink);
  border: 2px solid var(--border-color);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.highlight--green {
  background: var(--green);
  border: 2px solid var(--border-color);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.hero-brief {
  font-size: clamp(1.04rem, 1.35vw, 1.2rem);
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 580px;
  margin: 0;
  text-align: left;
}

.hero-brief strong {
  color: var(--text);
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: center;
  margin-top: 4px;
  z-index: 2;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  border: var(--border-w) solid var(--border-color);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--shadow-color);
  cursor: pointer;
  transition: all 0.1s ease;
  text-decoration: none;
}

.btn:hover {
  box-shadow: 2px 2px 0 var(--shadow-color);
  transform: translate(3px, 3px);
}

.btn:active {
  box-shadow: 0 0 0 var(--shadow-color);
  transform: translate(5px, 5px);
}

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

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

.btn--full {
  width: 100%;
  justify-content: center;
}

/* ===== HERO STATS ===== */
.hero-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.stat-card {
  padding: 16px 24px;
  border: var(--border-w) solid var(--border-color);
  box-shadow: 4px 4px 0 var(--shadow-color);
  min-width: 120px;
  transition: all 0.15s ease;
  cursor: default;
}

.stat-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--shadow-color);
}

.stat-card--pink { background: var(--pink-light); }
.stat-card--blue { background: var(--blue-light); }
.stat-card--green { background: var(--green-light); }

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 2rem;
  line-height: 1;
}

.stat-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* ===== HERO GEOMETRIC CANVAS (Advanced Borderless Triangle & Circle) ===== */
.hero-geo-col {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  position: relative;
  z-index: 2;
}

.geo-figure-stage {
  position: relative;
  width: 100%;
  max-width: 420px;
  height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  box-shadow: none;
  user-select: none;
}

.advanced-geo-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: none;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.geo-figure-stage:hover .advanced-geo-svg {
  transform: scale(1.025);
}

/* Advanced Circle System Animations */
.adv-circle-system {
  transform-origin: 185px 185px;
  animation: advCircleFloat 5.6s ease-in-out infinite alternate;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.geo-figure-stage:hover .adv-circle-system {
  transform: translate(-6px, -6px);
}

.adv-spinning-orbit {
  transform-origin: 185px 185px;
  animation: advSpinOrbit 16s linear infinite;
}

/* Advanced Triangle System Animations */
.adv-triangle-system {
  transform-origin: 335px 290px;
  animation: advTriangleFloat 6.2s ease-in-out infinite alternate 0.4s;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.geo-figure-stage:hover .adv-triangle-system {
  transform: translate(6px, 6px);
}

.adv-inner-triangle-float {
  transform-origin: 335px 270px;
  animation: advInnerTrianglePulse 4.5s ease-in-out infinite;
}

/* Dynamic Neo Accents Animations */
.adv-geo-star {
  transform-origin: 435px 96px;
  animation: advStarSpin 12s linear infinite;
}

.adv-geo-diamond {
  transform-origin: 88px 360px;
  animation: advDiamondWobble 5.2s ease-in-out infinite;
}

.adv-connector {
  animation: advConnectorPulse 3.8s ease-in-out infinite;
}

/* Physics Keyframe Animations */
@keyframes advCircleFloat {
  0% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-15px) rotate(4deg);
  }
  100% {
    transform: translateY(6px) rotate(-3deg);
  }
}

@keyframes advSpinOrbit {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes advTriangleFloat {
  0% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-13px) rotate(-5deg);
  }
  100% {
    transform: translateY(8px) rotate(3deg);
  }
}

@keyframes advInnerTrianglePulse {
  0%, 100% {
    transform: scale(1) translateY(0);
  }
  50% {
    transform: scale(1.08) translateY(-4px);
  }
}

@keyframes advStarSpin {
  0% {
    transform: rotate(0deg) scale(1);
  }
  50% {
    transform: rotate(180deg) scale(1.22);
  }
  100% {
    transform: rotate(360deg) scale(1);
  }
}

@keyframes advDiamondWobble {
  0%, 100% {
    transform: rotate(0deg) translateY(0);
  }
  50% {
    transform: rotate(15deg) translateY(-8px);
  }
}

@keyframes advConnectorPulse {
  0%, 100% {
    opacity: 0.65;
  }
  50% {
    opacity: 1;
  }
}



/* ===== MARQUEE STRIP ===== */
.marquee-strip {
  overflow: hidden;
  background-color: var(--yellow);
  background-image: repeating-linear-gradient(
    -45deg,
    rgba(26, 26, 26, 0.045) 0,
    rgba(26, 26, 26, 0.045) 12px,
    transparent 12px,
    transparent 24px
  );
  border-top: var(--border-w) solid var(--border-color);
  border-bottom: var(--border-w) solid var(--border-color);
  padding: 16px 0;
  white-space: nowrap;
}

.marquee-track {
  display: inline-flex;
  align-items: center;
  gap: 32px;
  animation: marquee 20s linear infinite;
}

.marquee-item {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  letter-spacing: 2px;
  flex-shrink: 0;
}

.marquee-dot {
  width: 12px;
  height: 12px;
  background: var(--border-color);
  border-radius: 50%;
  flex-shrink: 0;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===== SECTION COMMON ===== */
.section-header {
  margin-bottom: 48px;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--bg-alt);
  border: 2px solid var(--border-color);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  letter-spacing: -1.5px;
  line-height: 1.1;
}

/* ===== ABOUT ===== */
.about {
  padding: var(--section-py) 0;
  background-color: var(--bg);
  background-image: 
    radial-gradient(circle, rgba(255, 107, 107, 0.14) 2px, transparent 2px),
    radial-gradient(circle, rgba(26, 26, 26, 0.07) 1.2px, transparent 1.2px);
  background-size: 30px 30px, 15px 15px;
  background-position: 0 0, 7.5px 7.5px;
  position: relative;
}

/* ===== ABOUT ME LAYOUT ===== */
.about-container {
  display: flex;
  flex-direction: column;
  gap: 28px;
  width: 100%;
}

/* Main Bio Box */
.about-bio-box {
  background: var(--bg);
  border: var(--border-w) solid var(--border-color);
  box-shadow: 6px 6px 0 var(--shadow-color);
  padding: 0;
  border-radius: 14px;
  border-left: 10px solid var(--pink);
  position: relative;
  overflow: hidden;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease;
}

.about-bio-box:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--shadow-color);
}

/* Bio Topbar */
.about-bio-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 22px 38px;
  border-bottom: 2px dashed rgba(26, 26, 26, 0.12);
  background: linear-gradient(135deg, rgba(255, 107, 107, 0.06) 0%, transparent 60%);
}

.about-bio-title-wrap {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.about-bio-headline {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.15;
  margin: 0;
  color: var(--text);
}

.about-bio-role {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.3px;
}

/* Status Badge */
.about-bio-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: #F0FDF4;
  border: 2px solid #16A34A;
  border-radius: 100px;
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 800;
  color: #15803D;
  letter-spacing: 0.2px;
  box-shadow: 2px 2px 0 rgba(22, 163, 74, 0.2);
}

.status-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #16A34A;
  animation: statusPulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes statusPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* Bio Body */
.about-bio-body {
  padding: 28px 38px 34px;
}

.about-bio-p {
  font-family: var(--font-body);
  font-size: clamp(1.02rem, 1.25vw, 1.15rem);
  line-height: 1.78;
  color: var(--text);
  margin: 0 0 16px 0;
}

.about-bio-p:last-child {
  margin-bottom: 0;
}

.about-bio-p strong {
  font-weight: 800;
  color: var(--text);
}

/* Skill Highlight Tags */
.about-skill-tag {
  font-weight: 900;
  padding: 2px 10px;
  border-radius: 5px;
  letter-spacing: -0.2px;
  border: 1.5px solid var(--border-color);
  box-shadow: 1.5px 1.5px 0 var(--shadow-color);
  white-space: nowrap;
}

.about-skill-tag--yellow {
  background: var(--yellow-light);
  color: #92400E;
}

.about-skill-tag--pink {
  background: var(--pink-light);
  color: #9D174D;
}

/* Two Feature Boxes: GATE BOX & CHESS BOX (50% each on desktop) */
.about-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  align-items: stretch;
}

/* Feature Box Common Header */
.feature-box-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.feature-box-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2.5px solid var(--border-color);
  border-radius: 10px;
  box-shadow: 3px 3px 0 var(--shadow-color);
  flex-shrink: 0;
}

.feature-box-icon--yellow {
  background: var(--yellow);
  color: var(--text);
}

.feature-box-icon--chess {
  background: #81B64C;
  color: #ffffff;
}

.feature-box-icon--chess svg {
  width: 24px;
  height: 24px;
  fill: #ffffff;
}

.feature-box-title-wrap {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.feature-box-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  color: var(--text);
  margin: 0;
}

.feature-box-sub {
  font-family: var(--font-heading);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.3px;
}

/* ========== 1. GATE BOX (50% width) ========== */
.gate-box {
  background: #FFFDF8;
  border: var(--border-w) solid var(--border-color);
  box-shadow: 6px 6px 0 var(--shadow-color);
  padding: 30px 32px;
  border-radius: 14px;
  border-left: 10px solid var(--yellow);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease;
}

.gate-box:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--shadow-color);
}

.gate-tiers-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
  justify-content: center;
}

.gate-tier-card {
  border: 2px solid var(--border-color);
  border-radius: 10px;
  padding: 20px 24px;
  box-shadow: 3px 3px 0 var(--shadow-color);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.gate-tier-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--shadow-color);
}

.gate-tier-card--gold {
  background: linear-gradient(135deg, #FFFDF0 0%, #FEF9C3 100%);
  border-top: 5px solid #EAB308;
}

.gate-tier-card--cyan {
  background: linear-gradient(135deg, #F0FDFA 0%, #CCFBF1 100%);
  border-top: 5px solid #0D9488;
}

/* Clean GATE Tier Header (No Badges) */
.gate-tier-header {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.gate-tier-year {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 900;
  color: #1a1a1a;
  letter-spacing: 0.2px;
  text-transform: uppercase;
}

.gate-tier-ranks {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  width: 100%;
}

.gate-rank-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  min-width: 0;
}

.gate-rank-num {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.gate-rank-air {
  font-family: var(--font-heading);
  font-size: 10.5px;
  font-weight: 900;
  letter-spacing: 0.8px;
  color: var(--text);
  background: #ffffff;
  border: 1.5px solid var(--border-color);
  box-shadow: 1.5px 1.5px 0 var(--shadow-color);
  border-radius: 4px;
  padding: 2.5px 6.5px;
  line-height: 1;
  text-transform: uppercase;
  flex-shrink: 0;
}

.gate-rank-val {
  font-family: var(--font-heading);
  font-size: 1.95rem;
  font-weight: 900;
  color: #1a1a1a;
  letter-spacing: -0.8px;
  line-height: 1;
}

.gate-rank-branch {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 800;
  color: var(--text);
  white-space: nowrap;
}

.gate-rank-sep {
  width: 2px;
  height: 44px;
  background: rgba(26, 26, 26, 0.14);
  border-radius: 2px;
  justify-self: center;
}

/* ========== 2. CHESS BOX (50% width) ========== */
.chess-box {
  background: #F9FAF6;
  border: var(--border-w) solid var(--border-color);
  box-shadow: 6px 6px 0 var(--shadow-color);
  padding: 0;
  border-radius: 14px;
  border-left: 10px solid #81B64C;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  overflow: hidden;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease;
}

.chess-box:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--shadow-color);
}

.chess-box-main {
  padding: 30px 32px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
  justify-content: space-between;
}

.chess-ratings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: auto;
  margin-bottom: auto;
  padding: 8px 0;
}

.chess-rating-card {
  background: #ffffff;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  padding: 18px 12px 14px;
  box-shadow: 3px 3px 0 var(--shadow-color);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.chess-rating-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--shadow-color);
}

.chess-rating--rapid { border-top: 5px solid #81B64C; }
.chess-rating--blitz { border-top: 5px solid #F0C15C; }
.chess-rating--bullet { border-top: 5px solid #F78536; }

.chess-format-name {
  font-family: var(--font-heading);
  font-size: 10.5px;
  font-weight: 900;
  letter-spacing: 1.2px;
  color: var(--text-muted);
}

.chess-rating-value {
  font-family: var(--font-heading);
  font-size: 1.9rem;
  font-weight: 900;
  color: var(--text);
  line-height: 1.1;
}

/* Rating Progress Bar */
.chess-rating-bar {
  width: 100%;
  height: 5px;
  background: rgba(26, 26, 26, 0.08);
  border-radius: 100px;
  overflow: hidden;
  margin: 4px 0 2px;
}

.chess-rating-fill {
  height: 100%;
  border-radius: 100px;
  transition: width 1s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.chess-fill--rapid { background: linear-gradient(90deg, #70A33D, #81B64C); }
.chess-fill--blitz { background: linear-gradient(90deg, #E5AC37, #F0C15C); }
.chess-fill--bullet { background: linear-gradient(90deg, #E65100, #F78536); }

/* Chess Peak Rating Badges */
.chess-peak-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: #FFFDF8;
  border: 1.5px solid var(--border-color);
  box-shadow: 2px 2px 0 var(--shadow-color);
  border-radius: 6px;
  padding: 3px 8px;
  margin-top: 4px;
  cursor: default;
  transition: transform 0.15s cubic-bezier(0.2, 0, 0, 1), box-shadow 0.15s ease, background-color 0.15s ease;
  white-space: nowrap;
}

.chess-peak-badge:hover {
  transform: translateY(-1.5px);
  box-shadow: 2.5px 2.5px 0 var(--shadow-color);
}

.chess-peak-icon {
  width: 9px;
  height: 9px;
  flex-shrink: 0;
  stroke: var(--text-muted);
  transition: transform 0.15s ease;
}

.chess-peak-badge:hover .chess-peak-icon {
  transform: translateY(-1px);
}

.chess-peak--rapid {
  background: #F2F8ED;
}

.chess-peak--rapid .chess-peak-icon {
  stroke: #558B2F;
}

.chess-peak--blitz {
  background: #FEF9EB;
}

.chess-peak--blitz .chess-peak-icon {
  stroke: #B45309;
}

.chess-peak--bullet {
  background: #FFF4ED;
}

.chess-peak--bullet .chess-peak-icon {
  stroke: #C2410C;
}

.chess-peak-label {
  font-family: var(--font-heading);
  font-size: 8.5px;
  font-weight: 800;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  text-transform: uppercase;
  line-height: 1;
}

.chess-peak-val {
  font-family: var(--font-heading);
  font-size: 11.5px;
  font-weight: 900;
  color: var(--text);
  line-height: 1;
  letter-spacing: -0.2px;
}

.chess-format-tag {
  font-size: 10px;
  font-weight: 800;
  color: var(--text-muted);
  background: rgba(26, 26, 26, 0.05);
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.3px;
  margin-top: 2px;
  white-space: nowrap;
}

.chess-rating-value.updated {
  animation: chessValuePop 0.5s ease-out;
}

@keyframes chessValuePop {
  0% { transform: scale(1.15); color: #81B64C; }
  100% { transform: scale(1); }
}

/* Chess Box Footer with Authentic Chess.com Colors */
.chess-box-footer {
  padding: 0 32px 30px;
}

.chess-profile-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 15px 20px;
  background: #302E2B;
  color: #ffffff;
  font-family: var(--font-heading);
  border: 2.5px solid var(--border-color);
  border-left: 7px solid #81B64C;
  box-shadow: 4px 4px 0 var(--shadow-color);
  border-radius: 10px;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: pointer;
}

.chess-profile-btn:hover {
  background: #262421;
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--shadow-color);
  border-left-color: #92C856;
}

.chess-profile-btn-content {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Square Box for Chess Logo */
.chess-profile-logo-box {
  width: 44px;
  height: 44px;
  background: #262421;
  border: 2px solid #81B64C;
  border-radius: 8px;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #81B64C;
}

.chess-profile-logo-box svg {
  width: 24px;
  height: 24px;
  fill: #81B64C;
}

.chess-btn-text-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.chess-btn-main {
  font-size: 14.5px;
  font-weight: 900;
  letter-spacing: -0.2px;
  color: #ffffff;
}

.chess-btn-hint {
  font-size: 11px;
  font-weight: 700;
  color: #9E9B97;
  letter-spacing: 0.2px;
}

.chess-btn-arrow-box {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #81B64C;
  color: #ffffff;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  flex-shrink: 0;
  box-shadow: 2px 2px 0 #1a1a1a;
  transition: transform 0.2s ease, background 0.2s ease;
}

.chess-profile-btn:hover .chess-btn-arrow-box {
  background: #92C856;
  transform: translate(2px, -2px);
}

/* ========== 3. WARRIOR QUOTE CARD ========== */
.about-quote-card {
  position: relative;
  background: #FFFDF8;
  background-image: radial-gradient(circle, rgba(26, 26, 26, 0.07) 1.2px, transparent 1.2px);
  background-size: 20px 20px;
  border: var(--border-w) solid var(--border-color);
  border-left: 10px solid var(--yellow);
  border-radius: 14px;
  box-shadow: 6px 6px 0 var(--shadow-color);
  padding: 30px 36px 26px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 10px;
  overflow: hidden;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease;
}

.about-quote-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--shadow-color);
}

/* Background Watermark Quote */
.quote-watermark {
  position: absolute;
  top: -30px;
  right: 24px;
  font-family: var(--font-heading);
  font-size: 170px;
  font-weight: 900;
  line-height: 1;
  color: rgba(26, 26, 26, 0.05);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.about-quote-header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px dashed rgba(26, 26, 26, 0.12);
  padding-bottom: 12px;
}

.about-quote-label {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 900;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 1.2px;
}

.about-quote-tag {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.about-quote-body {
  position: relative;
  z-index: 1;
  font-family: var(--font-heading);
  font-size: clamp(1.22rem, 2.3vw, 1.55rem);
  font-weight: 800;
  line-height: 1.48;
  color: var(--text);
  letter-spacing: -0.4px;
  margin: 2px 0 0;
  font-style: normal;
}

.quote-highlight {
  background: rgba(255, 235, 59, 0.45);
  padding: 1px 6px;
  border-radius: 4px;
  border-bottom: 2.5px solid var(--border-color);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.quote-underline {
  text-decoration: underline;
  text-decoration-color: var(--blue);
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
}

.about-quote-author-wrap {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 6px;
}

.quote-author-dash {
  width: 28px;
  height: 3px;
  background: var(--border-color);
  border-radius: 2px;
}

.about-quote-author {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-style: normal;
}

.quote-name {
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 900;
  color: var(--text);
  letter-spacing: -0.2px;
}

.quote-rank-badge {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 800;
  color: #1a1a1a;
  background: var(--yellow);
  padding: 3px 8px;
  border: 1.5px solid var(--border-color);
  border-radius: 6px;
  box-shadow: 2px 2px 0 var(--shadow-color);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}


/* ===== PROJECTS ===== */
.projects {
  padding: var(--section-py) 0;
  background-color: var(--bg);
  background-image: 
    radial-gradient(circle, rgba(78, 205, 196, 0.22) 1.8px, transparent 1.8px),
    radial-gradient(circle, rgba(26, 26, 26, 0.08) 1.5px, transparent 1.5px);
  background-size: 28px 28px;
  background-position: 0 0, 14px 14px;
  position: relative;
}

/* Projects Filter Toolbar */
.projects-toolbar {
  margin-bottom: 32px;
  display: flex;
  justify-content: center;
}

.projects-filter-bar {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 10px;
  background: var(--bg);
  border: var(--border-w) solid var(--border-color);
  box-shadow: 4px 4px 0 var(--shadow-color);
  padding: 8px;
  justify-content: center;
}

.filter-btn {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  padding: 8px 18px;
  border: 2px solid transparent;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s ease;
}

.filter-btn:hover {
  background: var(--yellow-light);
  border-color: var(--border-color);
}

.filter-btn.active {
  background: var(--yellow);
  border: 2px solid var(--border-color);
  box-shadow: 2px 2px 0 var(--shadow-color);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.project-card {
  border: var(--border-w) solid var(--border-color);
  box-shadow: 4px 4px 0 var(--shadow-color);
  background: var(--bg);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  cursor: default;
  position: relative;
}

.project-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 7px 7px 0 var(--shadow-color);
}

.project-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.project-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.35rem;
  margin: 0;
  line-height: 1.25;
  letter-spacing: -0.4px;
  color: var(--text);
}

.project-accent-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  box-shadow: 1.5px 1.5px 0 var(--shadow-color);
  flex-shrink: 0;
}

.project-tech-icons {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.project-tech-icon-item {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1.5px solid var(--border-color);
  box-shadow: 2px 2px 0 var(--shadow-color);
  background: #ffffff;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  overflow: hidden;
  flex-shrink: 0;
}

.project-tech-icon-item:hover {
  transform: translateY(-2px) scale(1.08);
  box-shadow: 3px 3px 0 var(--shadow-color);
}

.project-tech-icon-item svg,
.project-tech-icon-item img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  border-radius: 6px;
}

.project-desc {
  color: var(--text-muted);
  margin-bottom: 20px;
  font-size: 0.92rem;
  line-height: 1.55;
  flex-grow: 1;
}

.project-links {
  display: flex;
  gap: 10px;
  width: 100%;
  margin-top: auto;
}

.project-link {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  padding: 9px 12px;
  border: 2px solid var(--border-color);
  box-shadow: 2.5px 2.5px 0 var(--shadow-color);
  transition: all 0.1s ease;
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
}

.project-link--primary {
  background: var(--yellow);
}

.project-link--secondary {
  background: var(--bg);
}

.project-link:hover {
  box-shadow: 1px 1px 0 var(--shadow-color);
  transform: translate(1.5px, 1.5px);
  background: var(--yellow-light);
}

/* ===== SKILLS ===== */
.skills {
  padding: var(--section-py) 0;
  background-color: var(--bg-alt);
  background-image: 
    linear-gradient(to right, rgba(26, 26, 26, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(26, 26, 26, 0.05) 1px, transparent 1px),
    linear-gradient(to right, rgba(255, 224, 102, 0.25) 1.5px, transparent 1.5px),
    linear-gradient(to bottom, rgba(255, 224, 102, 0.25) 1.5px, transparent 1.5px);
  background-size: 24px 24px, 24px 24px, 120px 120px, 120px 120px;
  position: relative;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.skill-card {
  padding: 32px 24px;
  border: var(--border-w) solid var(--border-color);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--shadow-color);
  text-align: center;
  transition: all 0.15s ease;
  cursor: default;
}

.skill-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 var(--shadow-color);
}

.skill-card--yellow { background: var(--yellow-light); }
.skill-card--pink { background: var(--pink-light); }
.skill-card--blue { background: var(--blue-light); }
.skill-card--green { background: var(--green-light); }

.skill-card svg {
  margin: 0 auto 16px;
}

.skill-card h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.skill-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ===== CONTACT (04) — CLEAN CONNECT HUB ===== */
.contact {
  padding: var(--section-py) 0;
  background-color: var(--bg-alt);
  background-image: repeating-linear-gradient(
    45deg,
    rgba(26, 26, 26, 0.04) 0,
    rgba(26, 26, 26, 0.04) 1.5px,
    transparent 0,
    transparent 14px
  );
  position: relative;
}

.contact-connect-box {
  background: var(--bg);
  border: var(--border-w) solid var(--border-color);
  box-shadow: 8px 8px 0 var(--shadow-color);
  border-radius: 16px;
  border-left: 12px solid var(--blue);
  padding: 44px 44px;
  max-width: 900px;
  margin: 0 auto;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease;
}

.contact-connect-box:hover {
  transform: translate(-2px, -2px);
  box-shadow: 10px 10px 0 var(--shadow-color);
}

.contact-connect-header {
  margin-bottom: 30px;
}

.contact-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: #F0FDF4;
  border: 2px solid #16A34A;
  border-radius: 100px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 11.5px;
  color: #15803D;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
  box-shadow: 2px 2px 0 rgba(22, 163, 74, 0.2);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #16A34A;
  box-shadow: 0 0 0 2px rgba(22, 163, 74, 0.35);
  animation: pulse 1.8s infinite;
  display: inline-block;
  flex-shrink: 0;
}

.contact-headline {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.8rem, 3vw, 2.3rem);
  letter-spacing: -0.8px;
  line-height: 1.2;
  margin: 0 0 10px 0;
  color: var(--text);
}

.contact-subline {
  color: var(--text-muted);
  font-size: clamp(1.02rem, 1.2vw, 1.15rem);
  line-height: 1.65;
  margin: 0;
}

.contact-subline strong {
  color: var(--text);
  font-weight: 800;
}

/* Contact Social Cards Grid */
.contact-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.contact-social-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 24px;
  background: #ffffff;
  border: 2.5px solid var(--border-color);
  border-radius: 12px;
  box-shadow: 4px 4px 0 var(--shadow-color);
  text-decoration: none;
  color: var(--text);
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease, background 0.2s ease;
  position: relative;
  overflow: hidden;
}

.contact-social-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 7px 7px 0 var(--shadow-color);
}

.contact-card--github {
  border-top: 5px solid #1a1a1a;
}

.contact-card--github:hover {
  background: #F8FAFC;
}

.contact-card--linkedin {
  border-top: 5px solid #0A66C2;
}

.contact-card--linkedin:hover {
  background: #F0F9FF;
}

.contact-card-icon-wrap {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-alt);
  border: 2px solid var(--border-color);
  border-radius: 10px;
  box-shadow: 2px 2px 0 var(--shadow-color);
  flex-shrink: 0;
  color: var(--text);
}

.contact-card--linkedin .contact-card-icon-wrap {
  color: #0A66C2;
}

.contact-card-content {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
  min-width: 0;
}

.contact-card-name {
  font-family: var(--font-heading);
  font-size: 1.18rem;
  font-weight: 900;
  color: var(--text);
  letter-spacing: -0.3px;
}

.contact-card-desc {
  font-size: 12.5px;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.1px;
}

.contact-card-arrow {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--text);
  color: #ffffff;
  border-radius: 8px;
  border: 2px solid var(--border-color);
  flex-shrink: 0;
  box-shadow: 2px 2px 0 var(--shadow-color);
  transition: transform 0.2s ease, background 0.2s ease;
}

.contact-social-card:hover .contact-card-arrow {
  transform: translate(2px, -2px);
  background: var(--blue);
}

/* ===== FOOTER ===== */
.footer {
  padding: 56px 0 32px 0;
  background-color: var(--text);
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.08) 1.2px, transparent 1.2px);
  background-size: 24px 24px;
  color: var(--bg);
  border-top: var(--border-w) solid var(--border-color);
  position: relative;
}

.footer-content-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 40px;
  width: 100%;
}

.footer-nav-horizontal {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px 28px;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.16);
  padding: 14px 28px;
  border-radius: 12px;
  box-shadow: 3px 3px 0 #000;
  width: 100%;
  max-width: 900px;
}

.footer-nav-label {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--yellow);
  background: rgba(255, 235, 59, 0.12);
  border: 1.5px solid var(--yellow);
  padding: 4px 10px;
  border-radius: 6px;
  box-shadow: 1.5px 1.5px 0 #000;
  flex-shrink: 0;
}

.footer-links-horizontal {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.footer-clean-link {
  color: rgba(255, 253, 247, 0.85);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14.5px;
  text-decoration: none;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  position: relative;
}

.footer-clean-link:hover {
  color: var(--yellow);
  transform: translateY(-2px);
}

/* Footer Bottom Bar */
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  padding-top: 24px;
  border-top: 2px solid rgba(255, 255, 255, 0.12);
}

.footer-bottom-info {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy-text {
  font-size: 13.5px;
  color: rgba(255, 253, 247, 0.7);
  margin: 0;
  font-family: var(--font-body);
}

.footer-stack-tag {
  font-size: 11.5px;
  font-family: var(--font-heading);
  font-weight: 700;
  color: rgba(255, 253, 247, 0.75);
  background: rgba(255, 255, 255, 0.08);
  padding: 4px 10px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 1.5px 1.5px 0 #000;
}

.back-to-top-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  background: var(--yellow);
  color: var(--text);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 13px;
  border: 2px solid #000;
  box-shadow: 3px 3px 0 #fff;
  cursor: pointer;
  transition: all 0.12s ease;
  text-decoration: none;
}

.back-to-top-btn:hover {
  background: var(--yellow-light);
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 #fff;
}

/* ===== SCROLL REVEAL ANIMATION ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

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

/* Tablet */
@media (max-width: 1024px) {
  .hero {
    padding-top: 110px;
    padding-bottom: 28px;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: center;
  }

  .hero-content-col {
    align-items: center;
    text-align: center;
    gap: 16px;
  }

  .hero-title {
    text-align: center;
  }

  .hero-brief {
    text-align: center;
    max-width: 620px;
    margin: 0 auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-geo-col {
    width: 100%;
    display: flex;
    justify-content: center;
  }

  .geo-figure-stage {
    max-width: 320px;
    height: 320px;
  }

  .about-features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .footer-content-wrap {
    gap: 60px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --section-py: clamp(38px, 6vw, 56px);
  }

  .navbar {
    top: 10px;
    left: 10px;
    right: 10px;
    padding: 12px 20px;
  }

  .nav-links {
    position: fixed;
    top: 76px;
    left: 10px;
    right: 10px;
    flex-direction: column;
    background: var(--bg);
    border: var(--border-w) solid var(--border-color);
    box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--shadow-color);
    padding: 16px;
    gap: 4px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active .toggle-bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .nav-toggle.active .toggle-bar:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.active .toggle-bar:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }

  .hero {
    padding-top: 108px;
    min-height: auto;
    padding-bottom: 24px;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 12px;
    text-align: center;
    max-width: 100%;
  }

  .hero-content-col {
    align-items: center;
    text-align: center;
    gap: 14px;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 4px;
  }

  .hero-title {
    letter-spacing: -0.8px;
    font-size: clamp(1.75rem, 6.2vw, 2.25rem);
    line-height: 1.15;
    margin-bottom: 0;
    text-align: center;
  }

  .hero-brief {
    font-size: 0.95rem;
    line-height: 1.55;
    text-align: center;
    margin: 0 auto;
    max-width: 500px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    max-width: 290px;
    gap: 10px;
    margin: 2px auto 0;
    justify-content: center;
  }

  .hero-actions .btn {
    width: 100%;
    padding: 12px 20px;
    font-size: 14.5px;
    justify-content: center;
  }

  /* Figure should NOT be present in phone view */
  .hero-geo-col {
    display: none !important;
  }

  .hero-stats {
    flex-direction: column;
  }

  .stat-card {
    min-width: auto;
  }

  /* About Mobile Overrides */
  .about-container {
    gap: 20px;
  }

  .about-bio-box {
    border-left-width: 7px;
    box-shadow: 4px 4px 0 var(--shadow-color);
  }

  .about-bio-topbar {
    padding: 16px 18px;
    flex-direction: column;
    align-items: flex-start;
  }

  .about-bio-headline {
    font-size: 1.7rem;
  }

  .about-bio-body {
    padding: 20px 18px 24px;
  }

  .about-bio-p {
    font-size: 0.96rem;
    line-height: 1.65;
    margin-bottom: 14px;
  }

  .about-skill-tag {
    padding: 1px 7px;
    font-size: 0.92rem;
  }

  .about-features-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .gate-box {
    padding: 22px 18px;
    border-left-width: 7px;
    box-shadow: 4px 4px 0 var(--shadow-color);
  }

  .chess-box {
    border-left-width: 7px;
    box-shadow: 4px 4px 0 var(--shadow-color);
  }

  .chess-box-main {
    padding: 22px 18px 16px;
  }

  .chess-box-footer {
    padding: 0 18px 18px;
  }

  .feature-box-icon {
    width: 38px;
    height: 38px;
  }

  .feature-box-title {
    font-size: 1.25rem;
  }

  .gate-tier-card {
    padding: 14px 16px;
  }

  .gate-tier-ranks {
    grid-template-columns: 1fr auto 1fr;
    gap: 12px;
  }

  .gate-rank-num {
    gap: 5px;
  }

  .gate-rank-air {
    font-size: 9px;
    padding: 2px 5px;
    box-shadow: 1px 1px 0 var(--shadow-color);
  }

  .gate-rank-val {
    font-size: 1.55rem;
    letter-spacing: -0.5px;
  }

  .gate-rank-branch {
    font-size: 11.5px;
  }

  .gate-rank-sep {
    height: 38px;
  }

  .chess-ratings-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .chess-rating-card {
    padding: 12px 6px 10px;
  }

  .chess-peak-badge {
    padding: 2.5px 5.5px;
    gap: 3px;
    margin-top: 3px;
    border-radius: 5px;
    box-shadow: 1.5px 1.5px 0 var(--shadow-color);
  }

  .chess-peak-icon {
    width: 8px;
    height: 8px;
  }

  .chess-peak-label {
    font-size: 7.5px;
    letter-spacing: 0.3px;
  }

  .chess-peak-val {
    font-size: 9.5px;
  }

  .chess-format-tag {
    font-size: 8.5px;
    padding: 1px 5px;
  }

  .chess-rating-value {
    font-size: 1.45rem;
  }

  .chess-rating-bar {
    height: 4px;
  }

  .chess-profile-btn {
    padding: 12px 14px;
    gap: 10px;
  }

  .chess-profile-logo-box {
    width: 36px;
    height: 36px;
  }

  .chess-pawn-icon {
    font-size: 20px;
  }

  .chess-btn-main {
    font-size: 12.5px;
  }

  .chess-btn-hint {
    font-size: 9.5px;
  }

  .chess-btn-arrow-box {
    width: 30px;
    height: 30px;
  }

  .about-quote-card {
    padding: 22px 18px 18px;
    border-left-width: 7px;
    box-shadow: 4px 4px 0 var(--shadow-color);
  }

  .quote-watermark {
    font-size: 110px;
    top: -18px;
    right: 12px;
  }

  .about-quote-body {
    font-size: 1.12rem;
    line-height: 1.45;
  }

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

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

  .project-card {
    padding: 18px 16px;
    box-shadow: 3.5px 3.5px 0 var(--shadow-color);
  }

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

  .project-tech-icons {
    gap: 6px;
    margin-bottom: 12px;
  }

  .project-tech-icon-item {
    width: 28px;
    height: 28px;
    border-radius: 6px;
  }

  .project-desc {
    font-size: 0.88rem;
    line-height: 1.5;
    margin-bottom: 16px;
  }

  .project-links {
    gap: 8px;
  }

  .project-link {
    padding: 9px 8px;
    font-size: 12.5px;
  }

  .marquee-strip {
    padding: 12px 0;
  }

  .contact-connect-box {
    padding: 26px 20px;
    border-left-width: 8px;
    box-shadow: 4px 4px 0 var(--shadow-color);
  }

  .contact-cards-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .contact-social-card {
    padding: 16px 18px;
    gap: 14px;
  }

  .footer {
    padding: 48px 0 28px 0;
  }

  .footer-content-wrap {
    display: flex;
    justify-content: center;
    width: 100%;
  }

  .footer-nav-horizontal {
    flex-direction: column;
    gap: 14px;
    padding: 18px 16px;
    text-align: center;
  }

  .footer-links-horizontal {
    gap: 10px 18px;
  }

  .footer-clean-link {
    font-size: 13.5px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .back-to-top-btn {
    width: 100%;
    justify-content: center;
  }
}

/* Small Mobile */
@media (max-width: 375px) {
  :root {
    --container-px: 14px;
    --section-py: 34px;
  }

  .hero {
    padding-top: 102px;
    padding-bottom: 18px;
  }

  .hero-content-col {
    gap: 10px;
  }

  .hero-title {
    font-size: 1.65rem;
    letter-spacing: -0.6px;
    line-height: 1.15;
  }

  .hero-brief {
    font-size: 0.88rem;
    line-height: 1.5;
  }

  .section-title {
    font-size: 1.65rem;
  }

  .hero-actions {
    flex-direction: column;
    gap: 8px;
  }

  .btn {
    width: 100%;
    padding: 10px 16px;
    font-size: 14px;
    justify-content: center;
  }

  .gate-tier-ranks {
    gap: 8px;
  }

  .gate-rank-num {
    gap: 4px;
  }

  .gate-rank-air {
    font-size: 8px;
    padding: 1.5px 4px;
  }

  .gate-rank-val {
    font-size: 1.35rem;
  }

  .gate-rank-branch {
    font-size: 10px;
  }
}

/* ===== CURSOR POINTER UTILITY ===== */
.cursor-pointer {
  cursor: pointer;
}

/* ===== EXTRA TAG & BADGE SYSTEM ===== */
.tag--purple { background: var(--purple-light); }
.tag--orange { background: #FFE0B2; }
.tag--teal { background: var(--blue-light); }
.tag--dark { background: #1a1a1a; color: #fff; }

.project-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 11px;
  background: #1a1a1a;
  color: #fff;
  border: 2px solid var(--border-color);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 12px;
  box-shadow: 2px 2px 0 var(--shadow-color);
  width: fit-content;
}

/* ===== PROJECTS TOOLBAR & FILTER ===== */
.projects-toolbar {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.projects-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-btn {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  padding: 8px 16px;
  background: var(--bg);
  border: var(--border-w) solid var(--border-color);
  box-shadow: 3px 3px 0 var(--shadow-color);
  cursor: pointer;
  transition: all 0.1s ease;
}

.filter-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--shadow-color);
  background: var(--yellow-light);
}

.filter-btn.active {
  background: var(--yellow);
  box-shadow: 1px 1px 0 var(--shadow-color);
  transform: translate(2px, 2px);
}



/* ===== CLEAN TECH STACK SYSTEM ===== */
.skills-grid--clean {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}

.skill-card-clean {
  padding: 24px 14px 20px;
  border: var(--border-w) solid var(--border-color);
  box-shadow: 4px 4px 0 var(--shadow-color);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: transform 0.15s cubic-bezier(0.2, 0, 0, 1), box-shadow 0.15s cubic-bezier(0.2, 0, 0, 1), background-color 0.15s ease;
  cursor: default;
  position: relative;
}

.skill-card-clean:hover {
  transform: translate(-3px, -3px);
  box-shadow: 7px 7px 0 var(--shadow-color);
  background: #ffffff;
}

.skill-icon-box {
  width: 50px;
  height: 50px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(2.5px 2.5px 0 var(--shadow-color));
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.skill-card-clean:hover .skill-icon-box {
  transform: scale(1.1) rotate(-3deg);
}

.skill-icon-box svg {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  display: block;
}

.skill-card-clean h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.3px;
  line-height: 1.2;
  margin: 0;
  color: var(--text);
}

/* Responsive updates for tech stack */
@media (max-width: 1100px) {
  .skills-grid--clean {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
}

@media (max-width: 880px) {
  .skills-grid--clean {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }
}

@media (max-width: 768px) {
  .skills-grid--clean {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .skill-card-clean {
    padding: 18px 10px 16px;
    box-shadow: 3px 3px 0 var(--shadow-color);
  }

  .skill-icon-box {
    width: 44px;
    height: 44px;
    margin-bottom: 10px;
  }

  .skill-card-clean h3 {
    font-size: 1rem;
  }
}

@media (max-width: 380px) {
  .skills-grid--clean {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .skill-card-clean {
    padding: 14px 6px 12px;
  }

  .skill-icon-box {
    width: 38px;
    height: 38px;
    margin-bottom: 8px;
  }

  .skill-card-clean h3 {
    font-size: 0.9rem;
  }
}