/* ========================================
   SBLG Studio — Brand Page
   Design: Deep Black, Tech Minimalism
   ======================================== */

:root {
  /* Colors - Monochrome Palette */
  --color-void: #050505;
  --color-ink: #0a0a0a;
  --color-surface: #111111;
  --color-line: rgba(255, 255, 255, 0.06);
  --color-muted: rgba(255, 255, 255, 0.4);
  --color-text: rgba(255, 255, 255, 0.85);
  --color-paper: #ffffff;

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-mono: 'Space Mono', 'Courier New', monospace;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 48px;
  --space-2xl: 96px;

  /* Animation */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-slow: 800ms;
  --duration-normal: 400ms;
  --duration-fast: 200ms;
}

/* ========================================
   Reset & Base
   ======================================== */

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

::selection {
  background: var(--color-paper);
  color: var(--color-void);
}

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

body {
  font-family: var(--font-body);
  background: var(--color-void);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
}

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

/* ========================================
   Custom Cursor
   ======================================== */

.cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--color-paper);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease, width 0.15s ease, height 0.15s ease;
  mix-blend-mode: difference;
}

.cursor-dot.hovering {
  width: 40px;
  height: 40px;
}

@media (hover: none) {
  .cursor-dot { display: none; }
  body { cursor: auto; }
}

/* ========================================
   Grid Lines Background
   ======================================== */

.grid-lines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.grid-line {
  position: absolute;
  background: var(--color-line);
}

.grid-line--v1,
.grid-line--v2,
.grid-line--v3 {
  width: 1px;
  height: 100%;
  top: 0;
}

.grid-line--v1 { left: 25%; }
.grid-line--v2 { left: 50%; }
.grid-line--v3 { left: 75%; }

.grid-line--h1,
.grid-line--h2 {
  width: 100%;
  height: 1px;
  left: 0;
}

.grid-line--h1 { top: 33.33%; }
.grid-line--h2 { top: 66.66%; }

/* ========================================
   Header
   ======================================== */

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

.header__logo {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-paper);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-muted);
}

.header__nav-divider {
  opacity: 0.3;
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-2xl) var(--space-xl);
  position: relative;
  z-index: 1;
  overflow: hidden;
  background: transparent; /* Allow canvas to show through */
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: var(--space-xl);
}

.hero__line {
  display: block;
  overflow: hidden;
}

.hero__line--1,
.hero__line--3 {
  font-size: clamp(48px, 10vw, 120px);
  color: var(--color-paper);
  transform: translateY(100%);
  animation: revealUp 1s var(--ease-out-expo) forwards;
}

.hero__line--2,
.hero__line--4 {
  font-size: clamp(36px, 7vw, 90px);
  color: var(--color-muted);
  font-style: italic;
  margin-left: 5%;
  transform: translateY(100%);
  animation: revealUp 1s var(--ease-out-expo) forwards;
}

.hero__line--1 { animation-delay: 0.1s; }
.hero__line--2 { animation-delay: 0.2s; }
.hero__line--3 { animation-delay: 0.3s; }
.hero__line--4 { animation-delay: 0.4s; }

@keyframes revealUp {
  to { transform: translateY(0); }
}

.hero__subtitle {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-muted);
  opacity: 0;
  animation: fadeIn 0.8s var(--ease-out-expo) 0.8s forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

/* ========================================
   The 4 Pillars
   ======================================== */

.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  min-height: 60vh;
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.pillar {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  border-right: 1px solid var(--color-line);
  position: relative;
  overflow: hidden;
  transition: background var(--duration-normal) ease;
}

.pillar:last-child {
  border-right: none;
}

.pillar:hover {
  background: var(--color-surface);
}

.pillar__letter {
  font-family: var(--font-display);
  font-size: clamp(80px, 15vw, 200px);
  font-weight: 400;
  color: var(--color-paper);
  line-height: 1;
  transition: transform var(--duration-slow) var(--ease-out-expo),
              opacity var(--duration-normal) ease;
}

.pillar:hover .pillar__letter {
  transform: translateY(-20px) scale(0.8);
  opacity: 0.3;
}

.pillar__info {
  position: absolute;
  bottom: var(--space-xl);
  left: var(--space-lg);
  right: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-normal) ease,
              transform var(--duration-slow) var(--ease-out-expo);
}

.pillar:hover .pillar__info {
  opacity: 1;
  transform: translateY(0);
}

.pillar__name {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-paper);
}

.pillar__desc {
  font-family: var(--font-display);
  font-size: 18px;
  font-style: italic;
  color: var(--color-text);
}

.pillar__detail {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  margin-top: var(--space-xs);
}

/* ========================================
   Manifesto
   ======================================== */

.manifesto {
  padding: var(--space-2xl) var(--space-xl);
  position: relative;
  z-index: 1;
}

.manifesto__line {
  display: grid;
  grid-template-columns: 60px 1fr 1fr;
  gap: var(--space-lg);
  align-items: baseline;
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-line);
  opacity: 0;
  transform: translateY(30px);
  animation: revealUp 0.8s var(--ease-out-expo) forwards;
}

.manifesto__line:nth-child(1) { animation-delay: 0.1s; }
.manifesto__line:nth-child(2) { animation-delay: 0.2s; }
.manifesto__line:nth-child(3) { animation-delay: 0.3s; }

.manifesto__number {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  letter-spacing: 0.1em;
}

.manifesto__text {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 48px);
  color: var(--color-paper);
}

.manifesto__sub {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  letter-spacing: 0.05em;
  text-align: right;
}

/* ========================================
   Upcoming Marquee
   ======================================== */

.upcoming {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.marquee {
  display: flex;
  width: max-content;
  animation: marquee 20s linear infinite;
}

.marquee__content {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  text-transform: uppercase;
  white-space: nowrap;
  padding-right: var(--space-xl);
}

.marquee__divider {
  font-size: 8px;
  opacity: 0.5;
}

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

/* ========================================
   Footer
   ======================================== */

.footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: var(--space-xl);
  position: relative;
  z-index: 1;
}

.footer__left {
  text-align: left;
}

.footer__center {
  text-align: center;
}

.footer__right {
  text-align: right;
}

.footer__link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  transition: color var(--duration-fast) ease;
}

.footer__link:hover {
  color: var(--color-paper);
}

.footer__copyright {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--color-muted);
  text-transform: uppercase;
}

.footer__location {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-muted);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 1024px) {
  .pillars {
    grid-template-columns: repeat(2, 1fr);
  }

  .pillar:nth-child(2) {
    border-right: none;
  }

  .pillar:nth-child(1),
  .pillar:nth-child(2) {
    border-bottom: 1px solid var(--color-line);
  }
}

@media (max-width: 768px) {
  .header {
    padding: var(--space-md) var(--space-lg);
  }

  .hero {
    padding: var(--space-2xl) var(--space-lg);
  }

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

  .pillar {
    border-right: none;
    border-bottom: 1px solid var(--color-line);
    min-height: 40vh;
  }

  .pillar:last-child {
    border-bottom: none;
  }

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

  .pillar__letter {
    transform: translateY(-10px) scale(0.9);
    opacity: 0.5;
  }

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

  .manifesto__line {
    grid-template-columns: 40px 1fr;
    grid-template-rows: auto auto;
  }

  .manifesto__sub {
    grid-column: 2;
    text-align: left;
    margin-top: var(--space-xs);
  }

  .footer {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    text-align: center;
  }

  .footer__left,
  .footer__center,
  .footer__right {
    text-align: center;
  }
}

/* ========================================
   Scroll Animations (JS controlled)
   ======================================== */

[data-animate] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out-expo),
              transform 0.8s var(--ease-out-expo);
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}