/* ========================================
   KŪKAN STUDIO - MINIMALIST ZEN
   Style: Japanese-inspired, serene, whitespace
   Vibe: Calm, thoughtful, intentional
======================================== */

/* VARIABLES */
:root {
  --ink: #1a1a1a;
  --ink-light: #4a4a4a;
  --ink-lighter: #8a8a8a;
  --paper: #fafaf8;
  --paper-warm: #f5f5f0;
  --accent: #c4a77d;

  --font-display: 'Cormorant', serif;
  --font-body: 'Inter', sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
  --space-2xl: 12rem;

  --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 16px;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.8;
  cursor: none;
}

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

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

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* CUSTOM CURSOR */
.cursor {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--ink);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transition: transform 0.1s ease;
  mix-blend-mode: difference;
}

.cursor-follower {
  position: fixed;
  width: 40px;
  height: 40px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transition: transform 0.3s ease, opacity 0.3s ease;
  opacity: 0.5;
}

/* NAVIGATION */
.nav-zen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  mix-blend-mode: difference;
}

.nav-logo {
  font-size: 1.5rem;
  color: var(--paper);
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
}

.nav-links a {
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--paper);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--paper);
  transition: var(--transition);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  width: 30px;
  height: 20px;
  position: relative;
}

.nav-toggle span {
  position: absolute;
  width: 100%;
  height: 1px;
  background: var(--paper);
  top: 50%;
  transform: translateY(-50%);
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: var(--space-xl);
}

.hero-content {
  text-align: center;
  max-width: 900px;
}

.hero-japanese {
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  color: var(--ink-lighter);
  margin-bottom: var(--space-md);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.hero-title .line {
  display: block;
}

.hero-title .accent {
  font-style: italic;
  color: var(--ink-light);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--ink-light);
  max-width: 500px;
  margin: 0 auto;
  font-weight: 300;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.scroll-indicator span {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-lighter);
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--ink), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

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

/* SECTIONS COMMON */
section {
  padding: var(--space-2xl) 0;
}

.label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-lighter);
  display: block;
  margin-bottom: var(--space-sm);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 300;
  line-height: 1.2;
}

.vertical-text {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-lighter);
}

/* PHILOSOPHY */
.philosophy {
  background: var(--paper-warm);
}

.philosophy-grid {
  display: grid;
  grid-template-columns: 100px 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.philosophy-content {
  max-width: 500px;
}

.philosophy-content .section-title {
  margin-bottom: var(--space-md);
}

.philosophy-text {
  color: var(--ink-light);
  margin-bottom: var(--space-sm);
}

.philosophy-text.large {
  font-size: 1.25rem;
  line-height: 1.9;
}

.philosophy-visual {
  display: flex;
  justify-content: center;
}

.zen-circle {
  width: 300px;
  height: 300px;
}

.zen-circle svg {
  width: 100%;
  height: 100%;
}

.circle-outer {
  animation: rotateCircle 30s linear infinite;
  transform-origin: center;
}

.circle-inner {
  animation: rotateCircle 20s linear infinite reverse;
  transform-origin: center;
}

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

/* PRINCIPLES */
.principles-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.principles-header .section-title {
  margin-top: var(--space-sm);
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.principle-card {
  padding: var(--space-lg);
  position: relative;
}

.principle-number {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--ink-lighter);
  margin-bottom: var(--space-md);
  display: block;
}

.principle-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 400;
  margin-bottom: var(--space-sm);
}

.principle-text {
  font-size: 0.95rem;
  color: var(--ink-light);
  line-height: 1.8;
}

.principle-line {
  position: absolute;
  bottom: 0;
  left: var(--space-lg);
  right: var(--space-lg);
  height: 1px;
  background: linear-gradient(to right, transparent, var(--ink-lighter), transparent);
}

/* WORK */
.work {
  background: var(--ink);
  color: var(--paper);
}

.work .label,
.work .section-title {
  color: var(--paper);
}

.work-header {
  margin-bottom: var(--space-xl);
}

.work-list {
  border-top: 1px solid rgba(255,255,255,0.1);
}

.work-item {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: var(--space-lg);
  align-items: center;
  padding: var(--space-lg) 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  transition: var(--transition);
}

.work-item:hover {
  padding-left: var(--space-md);
}

.work-category {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-xs);
  display: block;
}

.work-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 300;
}

.work-description {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  margin-top: var(--space-xs);
}

.work-year {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

.work-arrow {
  width: 50px;
  height: 50px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.work-item:hover .work-arrow {
  background: var(--paper);
  border-color: var(--paper);
}

.work-arrow svg {
  width: 20px;
  height: 20px;
  transition: var(--transition);
}

.work-item:hover .work-arrow svg {
  stroke: var(--ink);
}

/* PROCESS */
.process-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.process-content {
  max-width: 500px;
}

.process-text {
  color: var(--ink-light);
  margin: var(--space-md) 0 var(--space-lg);
}

.process-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.step-number {
  font-size: 1.5rem;
  color: var(--accent);
  line-height: 1;
}

.step-content h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 4px;
}

.step-content p {
  font-size: 0.9rem;
  color: var(--ink-light);
}

.process-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.ink-wash {
  position: relative;
  width: 300px;
  height: 300px;
}

.ink-circle {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26,26,26,0.1) 0%, transparent 70%);
}

.ink-circle.c1 {
  width: 250px;
  height: 250px;
  top: 0;
  left: 25px;
  animation: inkFloat 8s ease-in-out infinite;
}

.ink-circle.c2 {
  width: 200px;
  height: 200px;
  bottom: 0;
  left: 0;
  animation: inkFloat 10s ease-in-out infinite reverse;
}

.ink-circle.c3 {
  width: 150px;
  height: 150px;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  animation: inkFloat 6s ease-in-out infinite;
}

@keyframes inkFloat {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.8; }
  50% { transform: translateY(-20px) scale(1.05); opacity: 1; }
}

/* QUOTE */
.quote-section {
  background: var(--paper-warm);
  padding: var(--space-2xl) 0;
}

.zen-quote {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.zen-quote p {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.6;
  color: var(--ink);
}

.zen-quote cite {
  display: block;
  margin-top: var(--space-md);
  font-size: 0.85rem;
  font-style: normal;
  letter-spacing: 0.1em;
  color: var(--ink-lighter);
}

/* CONTACT */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.contact-content {
  max-width: 500px;
}

.contact-text {
  color: var(--ink-light);
  margin: var(--space-md) 0;
}

.contact-email {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 300;
  display: inline-block;
  position: relative;
  margin-bottom: var(--space-lg);
}

.contact-email::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s ease;
}

.contact-email:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.contact-details {
  display: flex;
  gap: var(--space-lg);
}

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

.detail-label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-lighter);
}

.detail-value {
  font-size: 0.95rem;
  color: var(--ink);
}

.contact-visual {
  display: flex;
  justify-content: center;
}

.enso {
  width: 300px;
  height: 300px;
}

.enso svg {
  width: 100%;
  height: 100%;
}

.enso-path {
  stroke-dasharray: 500;
  stroke-dashoffset: 500;
  animation: drawEnso 3s ease forwards;
}

@keyframes drawEnso {
  to { stroke-dashoffset: 0; }
}

/* FOOTER */
.footer {
  padding: var(--space-lg) 0;
  border-top: 1px solid rgba(26,26,26,0.1);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer-logo {
  font-size: 1.25rem;
  letter-spacing: 0.1em;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--ink-light);
}

.footer-links {
  display: flex;
  gap: var(--space-md);
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--ink-light);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--ink);
}

.footer-copyright p {
  font-size: 0.85rem;
  color: var(--ink-lighter);
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .philosophy-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .philosophy-label {
    display: none;
  }

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

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

  .process-visual,
  .contact-visual {
    order: -1;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .cursor,
  .cursor-follower {
    display: none;
  }

  body {
    cursor: auto;
  }

  a, button {
    cursor: pointer;
  }

  .hero {
    padding: var(--space-lg);
  }

  .work-item {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .work-year,
  .work-arrow {
    display: none;
  }

  .footer-content {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .contact-details {
    flex-direction: column;
  }
}

/* REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}