/* ============================================================
   DAT.DEV — Personal Brand Website
   style.css — Main Stylesheet
   Author: Dat
   Version: 1.0.0
   ============================================================ */

/* ============================================================
   TABLE OF CONTENTS
   01. CSS Custom Properties (Design Tokens)
   02. CSS Reset & Base
   03. Typography
   04. Layout Utilities
   05. Buttons
   06. Custom Cursor
   07. Noise Overlay
   08. Sticky Header
   09. Hero Section
   10. About Section
   11. Skills Section
   12. Projects Section
   13. Fun Zone Section
   14. Contact Section
   15. Footer
   16. Back to Top
   17. Scroll Reveal Animations
   18. Responsive (Mobile-first)
   ============================================================ */


/* ============================================================
   01. CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================================ */
:root {
  /* Background */
  --bg-base:        #07070f;
  --bg-surface:     #0d0d1a;
  --bg-elevated:    #13132a;
  --bg-card:        rgba(255, 255, 255, 0.03);
  --bg-card-hover:  rgba(255, 255, 255, 0.06);

  /* Accent — Electric Violet + Cyan */
  --accent:         #7c3aed;         /* primary violet */
  --accent-light:   #a855f7;         /* lighter violet */
  --accent-glow:    rgba(124, 58, 237, 0.35);
  --accent-2:       #06b6d4;         /* cyan */
  --accent-2-glow:  rgba(6, 182, 212, 0.25);

  /* Gradient */
  --grad-accent:    linear-gradient(135deg, var(--accent), var(--accent-2));
  --grad-subtle:    linear-gradient(135deg, rgba(124,58,237,0.12), rgba(6,182,212,0.12));
  --grad-hero:      radial-gradient(ellipse 80% 60% at 50% -10%,
                      rgba(124,58,237,0.28) 0%,
                      transparent 65%);

  /* Text */
  --text-primary:   #f0f0ff;
  --text-secondary: #94a3b8;
  --text-muted:     #4a5568;

  /* Border */
  --border:         rgba(255, 255, 255, 0.07);
  --border-active:  rgba(124, 58, 237, 0.5);

  /* Typography */
  --font-display:   'Space Grotesk', sans-serif;
  --font-body:      'Inter', sans-serif;
  --font-mono:      'JetBrains Mono', monospace;

  /* Font sizes (fluid) */
  --text-xs:    0.75rem;   /* 12px */
  --text-sm:    0.875rem;  /* 14px */
  --text-base:  1rem;      /* 16px */
  --text-lg:    1.125rem;  /* 18px */
  --text-xl:    1.25rem;   /* 20px */
  --text-2xl:   1.5rem;    /* 24px */
  --text-3xl:   1.875rem;  /* 30px */
  --text-4xl:   2.25rem;   /* 36px */
  --text-5xl:   3rem;      /* 48px */
  --text-6xl:   3.75rem;   /* 60px */
  --text-7xl:   4.5rem;    /* 72px */

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border radius */
  --radius-sm:   6px;
  --radius:      12px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
  --shadow:     0 4px 24px rgba(0,0,0,0.5);
  --shadow-lg:  0 8px 48px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 32px var(--accent-glow);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.06);

  /* Transitions */
  --transition:      all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* Header */
  --header-h: 72px;
  --container: 1200px;
  --container-pad: clamp(1.25rem, 5vw, 2.5rem);
}


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

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

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

/* Custom scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--accent-light); }

/* Selection */
::selection {
  background: rgba(124, 58, 237, 0.4);
  color: var(--text-primary);
}

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

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

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

ul, ol { list-style: none; }

pre, code {
  font-family: var(--font-mono);
}


/* ============================================================
   03. TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.section-heading {
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  margin-bottom: var(--space-6);
}

.section-sub {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-12);
}

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

.text-center.section-sub {
  margin-left: auto;
  margin-right: auto;
}

/* Gradient text */
.text-gradient,
.headline-gradient {
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}


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

.section-padding {
  padding: clamp(var(--space-16), 8vw, var(--space-24)) 0;
}

/* Section label */
.section-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--accent-light);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}

.label-line {
  display: block;
  width: 32px;
  height: 1px;
  background: var(--grad-accent);
}


/* ============================================================
   05. BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: var(--transition-spring);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  border: none;
  outline: none;
}

/* Shimmer shine effect on hover */
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.12) 50%, transparent 100%);
  transform: translateX(-100%);
  transition: transform 0.4s ease;
}

.btn:hover::after {
  transform: translateX(100%);
}

/* Primary */
.btn-primary {
  background: var(--grad-accent);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow), 0 4px 12px rgba(0,0,0,0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Outline */
.btn-outline {
  border: 1px solid var(--border-active);
  color: var(--accent-light);
  background: transparent;
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(124, 58, 237, 0.12);
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* CTA header button */
.btn-cta {
  background: var(--grad-accent);
  color: #fff;
  padding: 0.6rem 1.25rem;
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
  box-shadow: 0 2px 12px var(--accent-glow);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

/* Overlay button (projects) */
.btn-overlay {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
  padding: 0.6rem 1.25rem;
}

.btn-overlay:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-2px);
}

/* Fun Zone buttons */
.fun-btn {
  width: 100%;
  justify-content: center;
  margin-top: var(--space-5);
}


/* ============================================================
   06. CUSTOM CURSOR
   ============================================================ */
.cursor-dot,
.cursor-ring {
  position: fixed;
  pointer-events: none;
  border-radius: 50%;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
}

.cursor-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-light);
  top: 0; left: 0;
}

.cursor-ring {
  width: 32px;
  height: 32px;
  border: 1.5px solid rgba(124, 58, 237, 0.5);
  top: 0; left: 0;
  transition: width 0.2s, height 0.2s, border-color 0.2s, opacity 0.3s;
}

.cursor-ring.is-hovering {
  width: 48px;
  height: 48px;
  border-color: var(--accent);
  background: rgba(124, 58, 237, 0.06);
}

/* Hide default cursor on desktop */
@media (hover: hover) and (pointer: fine) {
  body { cursor: none; }
  a, button { cursor: none; }
}


/* ============================================================
   07. NOISE OVERLAY
   ============================================================ */
.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 180px 180px;
}


/* ============================================================
   08. STICKY HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  transition: var(--transition-slow);
}

/* Scrolled state */
.site-header.is-scrolled {
  height: 60px;
  background: rgba(7, 7, 15, 0.85);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  height: 100%;
  width: 100%;
}

/* Logo */
.logo {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  transition: var(--transition);
  flex-shrink: 0;
}

.logo-bracket {
  color: var(--accent);
}

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

.logo:hover .logo-text {
  opacity: 0.8;
}

/* Desktop nav */
.nav-desktop {
  display: none;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
}

@media (min-width: 900px) {
  .nav-desktop { display: flex; }
}

.nav-link {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius);
  transition: var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--grad-accent);
  border-radius: var(--radius-full);
  transform: translateX(-50%);
  transition: width 0.25s ease;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:hover::after {
  width: calc(100% - 1.7rem);
}

.nav-link.is-active {
  color: var(--text-primary);
}

.nav-link.is-active::after {
  width: calc(100% - 1.7rem);
}

/* CTA in header */
.header-cta {
  display: none;
  margin-left: var(--space-4);
  flex-shrink: 0;
}

@media (min-width: 900px) {
  .header-cta { display: inline-flex; }
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  margin-left: auto;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

@media (min-width: 900px) {
  .hamburger { display: none; }
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}

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

/* Mobile nav drawer */
.nav-mobile {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: rgba(7, 7, 15, 0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  padding: var(--space-6) var(--container-pad);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.35s ease, visibility 0.35s;
  z-index: 999;
}

.nav-mobile.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.nav-mobile-link {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-secondary);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.nav-mobile-link:hover {
  color: var(--text-primary);
  padding-left: var(--space-3);
}

.mobile-cta {
  margin-top: var(--space-4);
  justify-content: center;
}


/* ============================================================
   09. HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
  background: var(--bg-base);
}

/* Animated grid background */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 80%);
}

/* Gradient hero background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-hero);
  pointer-events: none;
}

/* Floating Orbs */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  animation: orbFloat 8s ease-in-out infinite;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: rgba(124, 58, 237, 0.2);
  top: 10%;
  left: -10%;
  animation-duration: 10s;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: rgba(6, 182, 212, 0.15);
  top: 20%;
  right: -5%;
  animation-delay: -4s;
  animation-duration: 12s;
}

.orb-3 {
  width: 250px;
  height: 250px;
  background: rgba(168, 85, 247, 0.12);
  bottom: 15%;
  left: 30%;
  animation-delay: -7s;
  animation-duration: 9s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(20px, -30px) scale(1.05); }
  66%       { transform: translate(-15px, 20px) scale(0.97); }
}

/* Hero content */
.hero-content {
  position: relative;
  z-index: 2;
  padding-top: var(--space-16);
  padding-bottom: var(--space-20);
  max-width: 780px;
}

/* Status badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(124, 58, 237, 0.12);
  border: 1px solid rgba(124, 58, 237, 0.25);
  border-radius: var(--radius-full);
  padding: 0.45rem 1rem;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--accent-light);
  margin-bottom: var(--space-8);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.85); }
}

/* Headline */
.hero-headline {
  font-size: clamp(var(--text-4xl), 7vw, var(--text-7xl));
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

/* Typing row */
.hero-typing {
  font-size: clamp(var(--text-xl), 3vw, var(--text-3xl));
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.typing-wrapper {
  display: inline-flex;
  align-items: center;
  color: var(--accent-light);
}

.typing-text {
  font-family: var(--font-mono);
  color: var(--accent-light);
}

.typing-cursor {
  color: var(--accent);
  animation: blink 1.1s step-end infinite;
  font-weight: 100;
  margin-left: 2px;
}

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

/* Sub description */
.hero-sub {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 580px;
  margin-bottom: var(--space-10);
}

.hero-sub em {
  color: var(--text-primary);
  font-style: normal;
}

/* CTA buttons */
.hero-ctas {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-16);
}

.hero-ctas .btn-primary {
  padding: 0.9rem 2rem;
  font-size: var(--text-base);
}

.hero-ctas .btn-outline {
  padding: 0.9rem 2rem;
  font-size: var(--text-base);
}

/* Scroll indicator */
.scroll-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text-muted);
  font-size: var(--text-sm);
  font-family: var(--font-mono);
}

.scroll-mouse {
  width: 22px;
  height: 34px;
  border: 1.5px solid var(--text-muted);
  border-radius: var(--radius-full);
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.scroll-wheel {
  width: 3px;
  height: 6px;
  background: var(--text-muted);
  border-radius: var(--radius-full);
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0%   { transform: translateY(0); opacity: 1; }
  80%  { transform: translateY(8px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* Fade-in animation (initial load) */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.7s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  animation-delay: var(--delay, 0s);
}

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


/* ============================================================
   10. ABOUT SECTION
   ============================================================ */
.about {
  background: var(--bg-surface);
  position: relative;
}

.about::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-active), transparent);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
  align-items: start;
}

@media (min-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
  }
}

.about-para {
  color: var(--text-secondary);
  font-size: var(--text-base);
  line-height: 1.85;
  margin-bottom: var(--space-5);
}

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

/* Fun facts */
.fun-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.fun-fact {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-align: center;
  transition: var(--transition);
}

.fun-fact:hover {
  border-color: var(--border-active);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

.fun-fact-num {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: var(--space-2);
}

.fun-fact-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.4;
}

.fun-fact-label small {
  display: block;
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: 2px;
}

/* About visual card */
.about-visual {
  position: relative;
}

.about-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255,255,255,0.05);
  transition: var(--transition-slow);
}

.about-card:hover {
  border-color: var(--border-active);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transform: translateY(-4px);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-5);
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-red    { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green  { background: #28c840; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-left: var(--space-3);
}

.terminal-body {
  padding: var(--space-6);
  overflow-x: auto;
}

.terminal-code {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.8;
  white-space: pre;
}

/* Syntax highlighting */
.code-brace { color: var(--text-secondary); }
.code-key   { color: var(--accent-2); }
.code-string { color: #a3e635; }
.code-number { color: #fb923c; }
.code-bool   { color: #f472b6; }

/* Avatar row in about-text */
.about-avatar {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.avatar-frame {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  padding: 3px;
  background: var(--grad-accent);
  flex-shrink: 0;
  box-shadow: 0 0 24px var(--accent-glow);
  transition: var(--transition-spring);
}

.avatar-frame:hover {
  transform: scale(1.05);
  box-shadow: 0 0 36px var(--accent-glow);
}

.avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  background: var(--bg-elevated);
}

.avatar-bio {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.avatar-name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
}

.avatar-role {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent-light);
  line-height: 1.5;
}

/* Floating badge */
.about-badge {
  position: absolute;
  bottom: -16px;
  right: 24px;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--bg-elevated);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-full);
  padding: 0.6rem 1.25rem;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--accent-light);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.about-badge i {
  color: #22c55e;
}


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

.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-10);
}

@media (min-width: 640px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .skills-grid { grid-template-columns: repeat(4, 1fr); }
}

/* Skill card */
.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: var(--transition-slow);
  box-shadow: var(--shadow-card);
}

.skill-card:hover {
  border-color: var(--border-active);
  background: var(--bg-card-hover);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg), 0 0 20px var(--accent-glow);
}

.skill-card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.skill-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.skill-icon-frontend { background: rgba(168, 85, 247, 0.15); color: #a855f7; border: 1px solid rgba(168,85,247,0.25); }
.skill-icon-backend  { background: rgba(6, 182, 212, 0.15);  color: #06b6d4; border: 1px solid rgba(6,182,212,0.25); }
.skill-icon-database { background: rgba(251, 191, 36, 0.15); color: #fbbf24; border: 1px solid rgba(251,191,36,0.25); }
.skill-icon-devops   { background: rgba(34, 197, 94, 0.15);  color: #22c55e; border: 1px solid rgba(34,197,94,0.25); }

.skill-card-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: 2px;
}

.skill-card-sub {
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-style: italic;
}

.skill-bars {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.skill-item {}

.skill-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
}

.skill-percent {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.skill-bar {
  height: 4px;
  background: rgba(255,255,255,0.07);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  width: 0%;                 /* animated via JS */
  background: var(--grad-accent);
  border-radius: var(--radius-full);
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 10px var(--accent-glow);
}

/* Tech badges */
.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 0.45rem 1rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-spring);
}

.tech-badge:hover {
  border-color: var(--border-active);
  color: var(--text-primary);
  transform: translateY(-2px) scale(1.03);
  background: rgba(124,58,237,0.1);
}

.tech-badge i {
  font-size: 0.9em;
  color: var(--accent-light);
}


/* ============================================================
   12. PROJECTS SECTION
   ============================================================ */
.projects {
  background: var(--bg-surface);
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 640px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1100px) {
  .projects-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Project card */
.project-card {
  transition: var(--transition-slow);
}

.project-card-inner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-slow);
  box-shadow: var(--shadow-card);
}

.project-card-inner:hover {
  border-color: var(--border-active);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), 0 0 30px var(--accent-glow);
}

/* Project thumbnail */
.project-thumb {
  position: relative;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.project-thumb-1 { background: linear-gradient(135deg, rgba(124,58,237,0.3), rgba(6,182,212,0.15)); }
.project-thumb-2 { background: linear-gradient(135deg, rgba(251,191,36,0.25), rgba(124,58,237,0.2)); }
.project-thumb-3 { background: linear-gradient(135deg, rgba(6,182,212,0.3), rgba(34,197,94,0.15)); }
.project-thumb-4 { background: linear-gradient(135deg, rgba(248,113,113,0.25), rgba(168,85,247,0.2)); }
.project-thumb-5 { background: linear-gradient(135deg, rgba(16,185,129,0.25), rgba(6,182,212,0.2)); }
.project-thumb-6 { background: linear-gradient(135deg, rgba(245,158,11,0.25), rgba(239,68,68,0.18)); }

.project-icons {
  font-size: 4rem;
  opacity: 0.35;
  transition: var(--transition-slow);
}

.project-card-inner:hover .project-icons {
  opacity: 0.15;
  transform: scale(1.15);
}

/* Project overlay */
.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(7, 7, 15, 0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card-inner:hover .project-overlay {
  opacity: 1;
}

.project-overlay-content {
  display: flex;
  gap: var(--space-3);
  transform: translateY(12px);
  transition: transform 0.3s ease;
}

/* NDA project type badge */
.project-type-nda {
  background: rgba(239, 68, 68, 0.15) !important;
  color: #f87171 !important;
  border-color: rgba(239, 68, 68, 0.3) !important;
}

/* NDA overlay button (non-clickable) */
.btn-nda {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.35);
  cursor: default;
  pointer-events: none;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  backdrop-filter: blur(8px);
}

.project-card-inner:hover .project-overlay-content {
  transform: translateY(0);
}

/* Project info */
.project-info {
  padding: var(--space-6);
}

.project-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.project-year {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.project-type {
  font-size: var(--text-xs);
  font-weight: 600;
  background: rgba(124, 58, 237, 0.15);
  color: var(--accent-light);
  border: 1px solid rgba(124, 58, 237, 0.25);
  border-radius: var(--radius-full);
  padding: 2px 10px;
}

.project-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
  transition: var(--transition);
}

.project-card-inner:hover .project-title {
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.project-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  color: var(--text-secondary);
}

/* More projects */
.projects-more {
  text-align: center;
  margin-top: var(--space-12);
}

/* Reveal delay for project cards */
.project-card[data-delay="0"] { transition-delay: 0s; }
.project-card[data-delay="1"] { transition-delay: 0.1s; }
.project-card[data-delay="2"] { transition-delay: 0.2s; }
.project-card[data-delay="3"] { transition-delay: 0.3s; }
.project-card[data-delay="4"] { transition-delay: 0.4s; }
.project-card[data-delay="5"] { transition-delay: 0.5s; }


/* ============================================================
   13. FUN ZONE SECTION
   ============================================================ */
.fun-zone {
  background: var(--bg-base);
  position: relative;
  overflow: hidden;
}

/* Radial glow background accent */
.fun-zone::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,0.08) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.fun-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .fun-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1100px) {
  .fun-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Fun card */
.fun-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: var(--transition-slow);
  display: flex;
  flex-direction: column;
}

.fun-card:hover {
  border-color: var(--border-active);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}

.fun-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: rgba(124, 58, 237, 0.15);
  border: 1px solid rgba(124, 58, 237, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--accent-light);
  margin-bottom: var(--space-5);
  transition: var(--transition-spring);
}

.excuse-icon {
  background: rgba(251, 113, 133, 0.15);
  border-color: rgba(251, 113, 133, 0.25);
  color: #fb7185;
}

.fun-card:hover .fun-card-icon {
  transform: scale(1.1) rotate(5deg);
}

.fun-card-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.fun-card-sub {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-5);
  font-style: italic;
}

/* Quote display */
.quote-display {
  background: rgba(255,255,255,0.03);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-sm);
  color: var(--text-primary);
  line-height: 1.8;
  font-style: italic;
  min-height: 80px;
  margin: 0;
  margin-bottom: var(--space-2);
  flex-grow: 1;
  transition: opacity 0.3s ease;
}

.quote-author {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  display: block;
  margin-bottom: var(--space-4);
}

/* Excuse display */
.excuse-display {
  background: rgba(251, 113, 133, 0.06);
  border: 1px solid rgba(251, 113, 133, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  min-height: 80px;
  display: flex;
  align-items: center;
  margin-bottom: var(--space-3);
  flex-grow: 1;
  transition: opacity 0.3s ease;
}

.excuse-display p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

.excuse-severity {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  font-size: var(--text-xs);
}

.severity-label {
  color: var(--text-muted);
}

.severity-stars {
  color: #fbbf24;
  letter-spacing: 1px;
}

/* Stack predictor */
.predictor-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

.predictor-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-3) var(--space-2);
  text-align: center;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--text-secondary);
  transition: var(--transition-spring);
  cursor: default;
}

.predictor-card.is-winner {
  background: rgba(124, 58, 237, 0.2);
  border-color: var(--accent);
  color: var(--text-primary);
  transform: scale(1.08);
  box-shadow: 0 0 20px var(--accent-glow);
  animation: winnerPulse 0.5s ease;
}

.predictor-card.is-loser {
  opacity: 0.3;
}

@keyframes winnerPulse {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.15); }
  100% { transform: scale(1.08); }
}


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

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
}

@media (min-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
  }
}

.contact-sub {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-8);
  max-width: 440px;
}

/* Contact methods */
.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  color: var(--text-secondary);
}

.contact-method:hover {
  border-color: var(--border-active);
  background: var(--bg-card-hover);
  color: var(--text-primary);
  transform: translateX(4px);
}

.contact-method-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: rgba(124, 58, 237, 0.15);
  border: 1px solid rgba(124, 58, 237, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--accent-light);
  flex-shrink: 0;
}

.method-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.method-value {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
}

/* Availability */
.availability {
  margin-top: var(--space-4);
}

.availability-inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
}

.avail-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 10px #22c55e;
  animation: pulse 2s infinite;
  flex-shrink: 0;
}

.avail-title {
  font-weight: 600;
  font-size: var(--text-sm);
  color: #4ade80;
  margin-bottom: 2px;
}

.avail-note {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* Contact form */
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
}

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
  font-family: var(--font-display);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-base);
  outline: none;
  transition: var(--transition);
  -webkit-appearance: none;
  appearance: none;
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-control:focus {
  border-color: var(--accent);
  background: rgba(124, 58, 237, 0.06);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.12);
}

.form-control.is-error {
  border-color: #f87171;
  background: rgba(248, 113, 113, 0.05);
}

.form-select {
  cursor: pointer;
  color: var(--text-secondary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-select option {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
}

.form-error {
  display: block;
  font-size: var(--text-xs);
  color: #f87171;
  margin-top: var(--space-2);
  min-height: 1rem;
  font-family: var(--font-mono);
}

/* Submit button */
.form-submit {
  width: 100%;
  justify-content: center;
  padding: 0.9rem;
  font-size: var(--text-base);
  margin-top: var(--space-2);
}

/* Success message */
.form-success {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-top: var(--space-5);
  animation: fadeInUp 0.4s ease;
}

.form-success i {
  font-size: 1.4rem;
  color: #22c55e;
  flex-shrink: 0;
  margin-top: 2px;
}

.form-success strong {
  display: block;
  color: #4ade80;
  margin-bottom: var(--space-1);
}

.form-success p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}


/* ============================================================
   15. FOOTER
   ============================================================ */
.site-footer {
  background: var(--bg-base);
  border-top: 1px solid var(--border);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 2fr 1fr 1fr;
    align-items: start;
  }
}

.footer-brand .logo {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
  display: inline-block;
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.7;
}

.footer-nav {
  display: flex;
  gap: var(--space-10);
}

.footer-nav-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-nav-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}

.footer-nav-col a {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-nav-col a:hover {
  color: var(--text-primary);
  transform: translateX(4px);
}

.footer-social {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.social-links {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-secondary);
  transition: var(--transition-spring);
}

.social-link:hover {
  background: rgba(124, 58, 237, 0.15);
  border-color: var(--border-active);
  color: var(--accent-light);
  transform: translateY(-3px);
}

/* Footer bottom */
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-copy {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.footer-fun {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
}


/* ============================================================
   16. BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid var(--border-active);
  color: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  cursor: pointer;
  z-index: 800;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: var(--transition-spring), opacity 0.3s ease, visibility 0.3s;
  box-shadow: var(--shadow);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}


/* ============================================================
   17. SCROLL REVEAL ANIMATIONS
   ============================================================ */

/* Initial hidden state */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.65s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Visible state (added by JS Intersection Observer) */
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for children (auto-applied via JS) */
.reveal:nth-child(1)  { transition-delay: 0s; }
.reveal:nth-child(2)  { transition-delay: 0.08s; }
.reveal:nth-child(3)  { transition-delay: 0.16s; }
.reveal:nth-child(4)  { transition-delay: 0.24s; }
.reveal:nth-child(5)  { transition-delay: 0.32s; }
.reveal:nth-child(6)  { transition-delay: 0.4s; }
.reveal:nth-child(7)  { transition-delay: 0.48s; }
.reveal:nth-child(8)  { transition-delay: 0.56s; }


/* ============================================================
   18. RESPONSIVE (Mobile-first additions)
   ============================================================ */

/* Small screens (≤480px) */
@media (max-width: 480px) {
  :root {
    --header-h: 64px;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-ctas .btn {
    justify-content: center;
  }

  .fun-facts {
    grid-template-columns: 1fr 1fr;
  }

  .predictor-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-form-wrap {
    padding: var(--space-5);
  }

  .social-links {
    flex-wrap: wrap;
  }
}

/* Medium screens (768px−1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

/* Print styles */
@media print {
  .noise-overlay,
  .cursor-dot,
  .cursor-ring,
  .orb,
  .hero-grid,
  .site-header,
  .back-to-top,
  .scroll-indicator { display: none !important; }

  body {
    background: white;
    color: black;
  }
}