/* ==========================================================================
   Paracelsus Portfolio v2 — "The Alchemist's Workshop"
   Design System: Monochromatic Dark + Neon Accent
   ========================================================================== */

/* --- Variable Fonts & Typography --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@100..900&family=Noto+Sans+JP:wght@300;400;500;700&family=JetBrains+Mono:wght@300;400;500;700&display=swap');

/* ==========================================================================
   Design Tokens
   ========================================================================== */
:root {
  /* Core Palette */
  --void: #08080c;
  --obsidian: #111118;
  --smoke: #1a1a24;
  --charcoal: #252530;
  --silver: #8888a0;
  --pearl: #e8e8f0;
  --white: #ffffff;

  /* Neon Accents */
  --neon-cyan: #00f0ff;
  --neon-violet: #a855f7;
  --neon-amber: #fbbf24;
  --neon-cyan-dim: rgba(0, 240, 255, 0.15);
  --neon-violet-dim: rgba(168, 85, 247, 0.12);
  --neon-amber-dim: rgba(251, 191, 36, 0.12);

  /* Glassmorphism */
  --glass-bg: rgba(17, 17, 24, 0.6);
  --glass-border: rgba(136, 136, 160, 0.15);
  --glass-highlight: rgba(232, 232, 240, 0.05);
  --glass-blur: 20px;

  /* Semantic Tokens */
  --bg-primary: var(--void);
  --bg-secondary: var(--obsidian);
  --bg-tertiary: var(--smoke);
  --text-primary: var(--pearl);
  --text-secondary: var(--silver);
  --text-muted: #55556a;
  --accent: var(--neon-cyan);
  --accent-secondary: var(--neon-violet);
  --accent-tertiary: var(--neon-amber);
  --border-color: var(--glass-border);
  --error-color: #ff4466;

  /* Layout */
  --max-width: 1200px;
  --header-height: 5rem;

  /* Typography */
  --font-display: 'Inter', sans-serif;
  --font-body: 'Noto Sans JP', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-smooth: all 0.6s var(--ease-out-expo);
  --transition-fast: all 0.3s var(--ease-out-expo);
  --transition-micro: all 0.15s var(--ease-out-expo);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.75;
  letter-spacing: 0.02em;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

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

button {
  background: none;
  border: none;
  font: inherit;
  cursor: pointer;
  outline: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

/* Selection */
::selection {
  background-color: rgba(0, 240, 255, 0.25);
  color: var(--white);
}

/* ==========================================================================
   WebGL Canvas (Fluid + Code Background)
   ========================================================================== */
#fluid-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

/* Fallback canvas for mobile */
#code-bg-fallback {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.12;
}

/* ==========================================================================
   Scroll Progress Indicator
   ========================================================================== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-violet));
  z-index: 1000;
  transition: none;
}

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

/* Mega Title — Hero Kinetic Typography */
.mega-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--pearl);
}

/* Gradient text fallback — before JS kinetic split */
.mega-title:not(.kinetic-active) {
  background: linear-gradient(135deg, var(--pearl) 0%, var(--silver) 50%, var(--neon-cyan) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 8s ease infinite;
}

@keyframes shimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* Kinetic letter spans */
.kinetic-letter {
  display: inline-block;
  color: var(--pearl);
  transition: font-weight 0.2s var(--ease-out-expo),
              transform 0.3s var(--ease-out-expo),
              color 0.3s var(--ease-out-expo);
  will-change: font-weight, transform;
}

.kinetic-letter:hover {
  font-weight: 900;
  transform: scaleY(1.1);
  color: var(--neon-cyan);
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -0.25rem;
  left: 0;
  width: 3rem;
  height: 3px;
  background: linear-gradient(90deg, var(--neon-cyan), transparent);
  border-radius: 2px;
}

.subtitle {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--neon-cyan);
  margin-bottom: 1.25rem;
  display: block;
  opacity: 0.9;
}

.subtitle::before {
  content: '// ';
  opacity: 0.4;
}

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

@media (min-width: 768px) {
  .container {
    padding: 0 3rem;
  }
}

main {
  position: relative;
  z-index: 1;
}

section {
  padding: 8rem 0;
  position: relative;
}

@media (min-width: 768px) {
  section {
    padding: 10rem 0;
  }
}

/* ==========================================================================
   Header & Navigation — Glassmorphism
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(8, 8, 12, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-smooth);
}

.site-header.scrolled {
  background: rgba(8, 8, 12, 0.92);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
}

/* Logo */
.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  font-style: italic;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  position: relative;
}

.logo::before {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--neon-cyan), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out-expo);
}

.logo:hover::before {
  transform: scaleX(1);
}

.logo-subpage {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 0.5rem;
  font-style: normal;
  letter-spacing: 0.05em;
}

/* Navigation */
.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  position: relative;
  padding: 0.25rem 0;
  transition: var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 1px;
  bottom: 0;
  left: 0;
  background: var(--neon-cyan);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease-out-expo);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-links a.active {
  color: var(--neon-cyan);
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: var(--transition-fast);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    flex-direction: column;
    background: rgba(8, 8, 12, 0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
  }

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

  .nav-links a {
    font-size: 1rem;
  }
}

/* ==========================================================================
   Hero Section — Top Page
   ========================================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 4rem);
  padding-bottom: 6rem;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.hero-description {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-secondary);
  max-width: 600px;
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .hero-description {
    font-size: 1.0625rem;
  }
}

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  z-index: 2;
}

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

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.3; transform: scaleY(0.5); }
}

/* ==========================================================================
   Portal Cards — Glassmorphism
   ========================================================================== */
.portal-section {
  padding: 6rem 0 10rem;
}

.portal-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .portal-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

.portal-card {
  position: relative;
  padding: 3.5rem 2.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  overflow: hidden;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  cursor: pointer;
}

@media (min-width: 768px) {
  .portal-card {
    padding: 4.5rem 3rem;
  }
}

/* Glass shine effect */
.portal-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(0, 240, 255, 0.06),
    transparent 40%
  );
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}

.portal-card:hover::before {
  opacity: 1;
}

/* Glow border on hover */
.portal-card::after {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  border-radius: 17px;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-violet), transparent, transparent);
  opacity: 0;
  transition: opacity 0.5s var(--ease-out-expo);
  z-index: -1;
}

.portal-card:hover::after {
  opacity: 0.5;
}

.portal-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 240, 255, 0.2);
  box-shadow: 0 20px 60px rgba(0, 240, 255, 0.08),
              0 0 40px rgba(0, 240, 255, 0.03);
}

.portal-card > * {
  position: relative;
  z-index: 1;
}

.portal-card-number {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--neon-cyan);
  margin-bottom: 2rem;
  opacity: 0.7;
}

.portal-card-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  letter-spacing: -0.01em;
}

@media (min-width: 768px) {
  .portal-card-title {
    font-size: 2rem;
  }
}

.portal-card-title .arrow {
  font-size: 1.25rem;
  transition: transform 0.4s var(--ease-spring);
  color: var(--neon-cyan);
  opacity: 0.6;
}

.portal-card:hover .portal-card-title .arrow {
  transform: translateX(8px);
  opacity: 1;
}

.portal-card-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.85;
}

/* ==========================================================================
   Works Page
   ========================================================================== */
.works-header {
  padding-top: calc(var(--header-height) + 6rem);
  padding-bottom: 4rem;
}

/* Tab Controls */
.works-controls {
  display: flex;
  gap: 2rem;
  margin-bottom: 4rem;
  border-bottom: 1px solid var(--glass-border);
}

.control-btn {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 1rem 0;
  transition: var(--transition-fast);
}

.control-btn::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-violet));
  transform: scaleX(0);
  transition: transform 0.4s var(--ease-out-expo);
}

.control-btn.active {
  color: var(--text-primary);
}

.control-btn.active::after {
  transform: scaleX(1);
}

.control-btn:hover {
  color: var(--text-primary);
}

/* Works Grid */
.works-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

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

@media (min-width: 1024px) {
  .works-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

/* Work Card — Glassmorphism */
.work-card {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.work-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 240, 255, 0.2);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3),
              0 0 30px rgba(0, 240, 255, 0.05);
}

.work-thumb {
  position: relative;
  height: 180px;
  background: var(--bg-tertiary);
  overflow: hidden;
  border-bottom: 1px solid var(--glass-border);
}

.work-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: var(--text-muted);
  transition: var(--transition-smooth);
}

.work-thumb-placeholder svg {
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 0.5rem;
  opacity: 0.4;
  transition: var(--transition-smooth);
  color: var(--neon-cyan);
}

.work-thumb-placeholder span {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.work-card:hover .work-thumb-placeholder svg {
  opacity: 0.8;
  transform: scale(1.15);
  color: var(--neon-cyan);
}

.work-info {
  padding: 1.75rem 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.work-client {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--neon-cyan);
  margin-bottom: 0.5rem;
  opacity: 0.8;
}

.work-title {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  line-height: 1.5;
  color: var(--text-primary);
}

.work-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.work-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  background: var(--neon-cyan-dim);
  color: var(--neon-cyan);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  border: 1px solid rgba(0, 240, 255, 0.1);
  transition: var(--transition-fast);
}

.work-card:hover .work-tag {
  background: rgba(0, 240, 255, 0.12);
  border-color: rgba(0, 240, 255, 0.2);
}

.work-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  width: fit-content;
  transition: var(--transition-fast);
}

.work-link:hover {
  color: var(--neon-cyan);
}

.work-link svg {
  width: 0.875rem;
  height: 0.875rem;
  transition: transform 0.3s var(--ease-spring);
}

.work-link:hover svg {
  transform: translateX(4px);
}

/* Private work details */
.private-details {
  border-top: 1px solid var(--glass-border);
  margin-top: 1.25rem;
  padding-top: 1.25rem;
}

.private-detail-item {
  margin-bottom: 1rem;
}

.private-detail-item:last-child {
  margin-bottom: 0;
}

.private-detail-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
}

.private-detail-value {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ==========================================================================
   Works Unlocked — Aurora State
   ========================================================================== */
body.works-unlocked .works-section {
  --accent: var(--neon-violet);
}

body.works-unlocked .work-card[data-work-type="private"] {
  background: rgba(168, 85, 247, 0.08);
  border-color: rgba(168, 85, 247, 0.15);
}

body.works-unlocked .work-card[data-work-type="private"]:hover {
  border-color: rgba(168, 85, 247, 0.3);
  box-shadow: 0 20px 40px rgba(168, 85, 247, 0.1),
              0 0 30px rgba(168, 85, 247, 0.05);
}

body.works-unlocked .work-card[data-work-type="private"] .work-client {
  color: var(--neon-violet);
}

body.works-unlocked .work-card[data-work-type="private"] .work-tag {
  background: var(--neon-violet-dim);
  color: var(--neon-violet);
  border-color: rgba(168, 85, 247, 0.15);
}

body.works-unlocked .work-card[data-work-type="private"] .work-thumb-placeholder svg {
  color: var(--neon-violet);
}

/* ==========================================================================
   Password Modal — Glassmorphism
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(8, 8, 12, 0.7);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 200;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s var(--ease-out-expo);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  color: var(--text-primary);
  width: 90%;
  max-width: 440px;
  padding: 3.5rem 2.5rem;
  border-radius: 20px;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5),
              0 0 60px rgba(0, 240, 255, 0.05);
  transform: translateY(30px) scale(0.96);
  transition: transform 0.5s var(--ease-out-expo);
}

.modal-overlay.active .modal-content {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
  padding: 0.25rem;
}

.modal-close:hover {
  color: var(--text-primary);
  transform: rotate(90deg);
}

.modal-close svg {
  width: 1.25rem;
  height: 1.25rem;
}

.modal-header {
  text-align: center;
  margin-bottom: 2rem;
}

.modal-header .lock-icon-wrapper {
  margin: 0 auto 1.25rem;
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  background: var(--neon-cyan-dim);
  color: var(--neon-cyan);
}

.modal-header .lock-icon-wrapper svg {
  width: 1.5rem;
  height: 1.5rem;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.modal-subtitle {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.input-group {
  position: relative;
}

.password-input-wrapper {
  position: relative;
}

.modal-input {
  width: 100%;
  padding: 0.875rem 1rem;
  padding-right: 3.5rem;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  outline: none;
  transition: var(--transition-fast);
}

.modal-input:focus {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.08);
  background: rgba(255, 255, 255, 0.05);
}

.modal-input::placeholder {
  color: var(--text-muted);
}

.password-toggle {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: var(--transition-fast);
}

.password-toggle:hover {
  color: var(--neon-cyan);
}

.error-message {
  font-size: 0.75rem;
  color: var(--error-color);
  display: none;
  margin-top: 0.5rem;
  font-family: var(--font-mono);
}

.error-message.active {
  display: block;
}

/* Submit button */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.875rem 2rem;
  border-radius: 10px;
  border: 1px solid var(--neon-cyan);
  background: rgba(0, 240, 255, 0.08);
  color: var(--neon-cyan);
  position: relative;
  overflow: hidden;
  transition: var(--transition-fast);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--neon-cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out-expo);
  z-index: -1;
}

.btn-primary:hover {
  color: var(--void);
  border-color: var(--neon-cyan);
}

.btn-primary:hover::before {
  transform: scaleX(1);
}

/* Shake animation */
@keyframes shake {
  0%, 100% { transform: translateX(0) translateY(0) scale(1); }
  20%, 60% { transform: translateX(-6px) translateY(0) scale(1); }
  40%, 80% { transform: translateX(6px) translateY(0) scale(1); }
}

.shake {
  animation: shake 0.4s ease-in-out;
}

/* ==========================================================================
   About Page
   ========================================================================== */
.about-header {
  padding-top: calc(var(--header-height) + 6rem);
  padding-bottom: 2rem;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5rem;
}

.about-text h3 {
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
  line-height: 1.6;
  color: var(--text-primary);
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.9375rem;
  line-height: 1.85;
}

/* Philosophy Block */
.about-quote {
  position: relative;
  border-left: 2px solid var(--neon-cyan);
  padding: 1.75rem 0 1.75rem 2rem;
  margin: 3rem 0;
  background: var(--glass-bg);
  border-radius: 0 12px 12px 0;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.85;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.about-quote-title {
  font-family: var(--font-body);
  font-weight: 700;
  display: block;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

/* Git Log Timeline */
.timeline-heading {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 2rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.timeline-heading .icon {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--neon-cyan);
  opacity: 0.7;
}

.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--neon-cyan), var(--glass-border), transparent);
}

.timeline-item {
  position: relative;
  padding: 0 0 3rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* Commit dot */
.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.5rem;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--neon-cyan);
  z-index: 1;
  transition: var(--transition-fast);
}

.timeline-item:hover::before {
  background: var(--neon-cyan);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.4);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--neon-cyan);
  opacity: 0.7;
}

.timeline-content-block {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  padding: 1.5rem;
  transition: var(--transition-smooth);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.timeline-item:hover .timeline-content-block {
  border-color: rgba(0, 240, 255, 0.15);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.timeline-title {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.timeline-subtitle {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.timeline-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Qualifications */
.qualifications-block {
  margin-top: 3.5rem;
}

.qualifications-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.qualification-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 0.75rem 1.25rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  transition: var(--transition-fast);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.qualification-item:hover {
  border-color: rgba(0, 240, 255, 0.15);
  transform: translateY(-2px);
}

.qualification-item svg {
  width: 1rem;
  height: 1rem;
  color: var(--neon-cyan);
  flex-shrink: 0;
  opacity: 0.7;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-section {
  text-align: center;
  padding: 10rem 0;
  position: relative;
}

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

.contact-content {
  max-width: 550px;
  margin: 0 auto;
}

.contact-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.contact-text {
  color: var(--text-secondary);
  margin-bottom: 3.5rem;
  line-height: 1.9;
  font-size: 0.9375rem;
}

.social-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.social-link {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  border-bottom: 1px solid transparent;
  padding-bottom: 0.2rem;
  transition: var(--transition-fast);
}

.social-link:hover {
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--glass-border);
  padding: 2.5rem 0;
  text-align: center;
}

.site-footer p {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* ==========================================================================
   GSAP / Reveal Utilities
   ========================================================================== */
.reveal-up {
  opacity: 0;
  transform: translateY(40px);
}

.reveal-fade {
  opacity: 0;
}

.gsap-animating {
  transition: none !important;
}

/* ==========================================================================
   Responsive Adjustments
   ========================================================================== */
@media (max-width: 480px) {
  .portal-card {
    padding: 2.5rem 1.75rem;
  }

  .work-info {
    padding: 1.5rem 1.25rem;
  }

  .timeline {
    padding-left: 1.5rem;
  }

  .timeline::before {
    left: 4px;
  }

  .timeline-item::before {
    left: -1.5rem;
    width: 10px;
    height: 10px;
  }
}

/* ==========================================================================
   Mouse Stalker (Custom Animated Follower Cursor)
   ========================================================================== */
@media (hover: hover) and (pointer: fine) {
  .mouse-stalker {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 99999;
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .stalker-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 8px;
    height: 8px;
    background-color: var(--neon-cyan);
    border-radius: 50%;
    pointer-events: none;
    box-shadow: 0 0 12px var(--neon-cyan);
    transition: width 0.25s var(--ease-out-expo),
                height 0.25s var(--ease-out-expo),
                background-color 0.25s ease,
                opacity 0.25s ease;
    will-change: transform;
  }

  .stalker-follower {
    position: fixed;
    top: 0;
    left: 0;
    width: 38px;
    height: 38px;
    border: 1.5px solid rgba(0, 240, 255, 0.45);
    background: rgba(0, 240, 255, 0.04);
    border-radius: 50%;
    pointer-events: none;
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    transition: width 0.3s var(--ease-out-expo),
                height 0.3s var(--ease-out-expo),
                border-color 0.3s ease,
                background-color 0.3s ease,
                box-shadow 0.3s ease,
                opacity 0.25s ease;
    will-change: transform;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .stalker-text {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--neon-cyan);
    opacity: 0;
    text-transform: uppercase;
    transition: opacity 0.2s ease, transform 0.2s ease;
    transform: scale(0.8);
    white-space: nowrap;
    user-select: none;
  }

  /* Hover state for interactive buttons/links */
  .mouse-stalker.is-hovering .stalker-follower {
    width: 52px;
    height: 52px;
    border-color: var(--neon-cyan);
    background: rgba(0, 240, 255, 0.1);
    box-shadow: 0 0 25px rgba(0, 240, 255, 0.25);
  }

  .mouse-stalker.is-hovering .stalker-dot {
    width: 5px;
    height: 5px;
    background-color: var(--neon-violet);
    box-shadow: 0 0 10px var(--neon-violet);
  }

  /* Hover state for cards (Works cards, Portal cards) */
  .mouse-stalker.is-card-hover .stalker-follower {
    width: 76px;
    height: 76px;
    background: rgba(0, 240, 255, 0.16);
    border-color: var(--neon-cyan);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.35);
    backdrop-filter: blur(6px);
  }

  .mouse-stalker.is-card-hover .stalker-text {
    opacity: 1;
    transform: scale(1);
  }

  .mouse-stalker.is-card-hover .stalker-dot {
    opacity: 0;
  }

  /* Active Mouse Down */
  .mouse-stalker.is-active .stalker-follower {
    width: 32px;
    height: 32px;
    background: rgba(189, 0, 255, 0.2);
    border-color: var(--neon-violet);
  }

  .mouse-stalker.is-active .stalker-dot {
    transform: scale(1.5);
  }
}

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

  .scroll-hint-line {
    animation: none;
  }

  .mega-title {
    animation: none;
  }
}