/* ============================================================
   LIQUID MONKS — design tokens + base + components
   ============================================================ */

:root {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm: clamp(0.8125rem, 0.78rem + 0.2vw, 0.9375rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.125rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.25rem);
  --text-hero: clamp(2.75rem, 0.5rem + 7vw, 6.5rem);

  /* Spacing — 4px base */
  --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;
  --space-32: 8rem;

  /* Fonts */
  --font-display: 'Boska', 'Source Serif 4', Georgia, serif;
  --font-body: 'Satoshi', 'Inter', 'Helvetica Neue', sans-serif;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Motion */
  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 600ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
}

/* ----- DARK (default) — ink, parchment, copper ----- */
:root,
[data-theme='dark'] {
  --color-bg: #0b0d0e;
  --color-surface: #121416;
  --color-surface-2: #181a1c;
  --color-surface-offset: #1d2022;
  --color-divider: #24262a;
  --color-border: #2a2d31;

  --color-text: #e8e4d8;
  --color-text-muted: #9a9689;
  --color-text-faint: #5f5d57;

  --color-primary: #c48b5a;     /* warm copper */
  --color-primary-hover: #d89a66;
  --color-primary-highlight: rgba(196, 139, 90, 0.15);

  --color-accent: #7aa6a1;       /* muted teal */
  --color-accent-2: #8a7ab3;     /* dusk violet */

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.5);
}

/* ----- LIGHT — parchment, ink, copper ----- */
[data-theme='light'] {
  --color-bg: #f2efe6;
  --color-surface: #f7f5ed;
  --color-surface-2: #fbf9f2;
  --color-surface-offset: #ebe7dc;
  --color-divider: #d9d4c5;
  --color-border: #c7c2b4;

  --color-text: #1a1915;
  --color-text-muted: #5c594e;
  --color-text-faint: #928e7f;

  --color-primary: #8d5a2f;
  --color-primary-hover: #7a4b24;
  --color-primary-highlight: rgba(141, 90, 47, 0.1);

  --color-accent: #3d6e68;
  --color-accent-2: #5a4d7d;

  --shadow-sm: 0 1px 2px rgba(40, 30, 20, 0.06);
  --shadow-md: 0 8px 24px rgba(40, 30, 20, 0.08);
  --shadow-lg: 0 24px 60px rgba(40, 30, 20, 0.12);
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

ul[role='list'] {
  list-style: none;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 500;
  text-wrap: balance;
  line-height: 1.05;
  letter-spacing: -0.015em;
}

h1 em, h2 em, h3 em {
  font-style: italic;
  color: var(--color-primary);
  font-weight: 400;
}

p {
  text-wrap: pretty;
  max-width: 62ch;
}

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

::selection {
  background: var(--color-primary);
  color: var(--color-bg);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

a, button, [role='button'] {
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    transform var(--transition-interactive),
    opacity var(--transition-interactive);
}

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

/* ============================================================
   Ambient background — fluid "liquid" orbs + grain
   ============================================================ */
.ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  will-change: transform;
}

.orb--1 {
  width: 42vw;
  height: 42vw;
  top: -12vw;
  left: -10vw;
  background: radial-gradient(circle at 30% 30%, var(--color-primary), transparent 60%);
  animation: drift1 28s ease-in-out infinite alternate;
}
.orb--2 {
  width: 38vw;
  height: 38vw;
  top: 30vh;
  right: -14vw;
  background: radial-gradient(circle at 50% 50%, var(--color-accent), transparent 60%);
  animation: drift2 34s ease-in-out infinite alternate;
  opacity: 0.22;
}
.orb--3 {
  width: 30vw;
  height: 30vw;
  bottom: -8vw;
  left: 28vw;
  background: radial-gradient(circle at 60% 40%, var(--color-accent-2), transparent 60%);
  animation: drift3 40s ease-in-out infinite alternate;
  opacity: 0.18;
}

[data-theme='light'] .orb { opacity: 0.22; }
[data-theme='light'] .orb--2 { opacity: 0.18; }
[data-theme='light'] .orb--3 { opacity: 0.14; }

@keyframes drift1 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(6vw, 8vh) scale(1.15); }
}
@keyframes drift2 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-8vw, 4vh) scale(0.9); }
}
@keyframes drift3 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(4vw, -6vh) scale(1.1); }
}

.grain {
  position: absolute;
  inset: -50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.4 0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.25;
  mix-blend-mode: overlay;
}

[data-theme='light'] .grain { opacity: 0.12; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: var(--space-4) clamp(var(--space-6), 5vw, var(--space-16));
  background: color-mix(in oklab, var(--color-bg) 75%, transparent);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-slow), background var(--transition-slow);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-divider);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  font-weight: 500;
}

.brand-mark {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.brand:hover .brand-mark { transform: rotate(10deg); transition: transform var(--transition-slow); }

.site-nav {
  display: flex;
  gap: var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.site-nav a {
  position: relative;
}
.site-nav a:hover { color: var(--color-text); }
.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1px;
  background: var(--color-primary);
  transition: width var(--transition-interactive);
}
.site-nav a:hover::after { width: 100%; }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.theme-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

@media (max-width: 640px) {
  .site-nav { display: none; }
}

/* ============================================================
   Layout
   ============================================================ */
main {
  padding-inline: clamp(var(--space-6), 5vw, var(--space-16));
}

.section {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
  border-top: 1px solid var(--color-divider);
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-16);
  max-width: 48rem;
}

.section-num {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 500;
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-top: clamp(var(--space-16), 10vw, var(--space-24));
  padding-bottom: clamp(var(--space-16), 10vw, var(--space-32));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-10);
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary);
  animation: pulse 2.8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.4; transform: scale(0.8); }
}

.hero-title {
  font-size: var(--text-hero);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-10);
  max-width: 14ch;
}

.hero-lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 52ch;
  margin-bottom: var(--space-10);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-20);
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-8);
  padding-top: var(--space-10);
  border-top: 1px solid var(--color-divider);
  max-width: 56rem;
}

.hero-meta > div { min-width: 0; }

.hero-meta dt {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}

.hero-meta dd {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
}

@media (max-width: 720px) {
  .hero-meta { grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-bg);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

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

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

/* ============================================================
   Work grid
   ============================================================ */
.work-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-6);
}

.work-card {
  grid-column: span 3;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-interactive), transform var(--transition-interactive);
}

.work-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.work-card--feature {
  grid-column: span 6;
  flex-direction: row;
}

.work-card--feature .work-visual {
  flex: 1 1 50%;
  aspect-ratio: auto;
  min-height: 360px;
}

.work-card--feature .work-body {
  flex: 1 1 50%;
}

.work-visual {
  aspect-ratio: 4 / 3;
  position: relative;
  overflow: hidden;
  background: var(--color-surface-2);
}

.work-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

/* Generated gradient "art" for each project */
.work-visual--1::before {
  background: radial-gradient(ellipse at 30% 20%, #c48b5a 0%, transparent 45%),
              radial-gradient(ellipse at 70% 80%, #7aa6a1 0%, transparent 50%),
              linear-gradient(135deg, #1d2022, #0b0d0e);
}
.work-visual--2::before {
  background: radial-gradient(circle at 70% 30%, #8a7ab3 0%, transparent 50%),
              radial-gradient(circle at 20% 70%, #c48b5a 0%, transparent 40%),
              linear-gradient(180deg, #181a1c, #0b0d0e);
}
.work-visual--3::before {
  background: radial-gradient(ellipse at 50% 50%, #e8e4d8 0%, transparent 40%),
              linear-gradient(160deg, #1d2022, #121416);
  opacity: 0.9;
}
.work-visual--4::before {
  background: conic-gradient(from 180deg at 50% 50%, #7aa6a1, #c48b5a, #8a7ab3, #7aa6a1);
  opacity: 0.55;
  filter: blur(2px);
}

.work-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.5' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.35 0'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
  opacity: 0.5;
}

.work-body {
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  justify-content: center;
}

.work-meta {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.work-body h3 {
  font-size: var(--text-xl);
  font-weight: 500;
}

.work-body p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
  list-style: none;
}
.work-tags li {
  font-size: var(--text-xs);
  padding: 4px var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
}

@media (max-width: 900px) {
  .work-card { grid-column: span 6; }
  .work-card--feature { flex-direction: column; }
  .work-card--feature .work-visual { min-height: 240px; }
}

/* ============================================================
   Practice grid
   ============================================================ */
.practice-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-10);
}

.practice-card {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.practice-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-lg);
  color: var(--color-primary);
}

.practice-card h3 {
  font-size: var(--text-lg);
  font-weight: 500;
}

.practice-card p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

@media (max-width: 720px) {
  .practice-grid { grid-template-columns: 1fr; gap: var(--space-6); }
}

/* ============================================================
   Notes list
   ============================================================ */
.notes-list {
  list-style: none;
  border-top: 1px solid var(--color-divider);
}

.notes-list li {
  border-bottom: 1px solid var(--color-divider);
}

.note {
  display: grid;
  grid-template-columns: 12rem 1fr 2rem;
  align-items: baseline;
  gap: var(--space-6);
  padding: var(--space-6) var(--space-2);
  transition: background var(--transition-interactive), padding var(--transition-interactive);
}

.note:hover {
  background: var(--color-primary-highlight);
  padding-left: var(--space-6);
}

.note-date {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.note-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
}

.note-excerpt {
  grid-column: 2;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: 4px;
}

.note-arrow {
  color: var(--color-text-faint);
  font-size: var(--text-lg);
  transition: transform var(--transition-interactive), color var(--transition-interactive);
}
.note:hover .note-arrow {
  color: var(--color-primary);
  transform: translateX(4px);
}

@media (max-width: 720px) {
  .note {
    grid-template-columns: 1fr;
    gap: var(--space-1);
    padding: var(--space-5) var(--space-2);
  }
  .note-excerpt { grid-column: 1; }
  .note-arrow { display: none; }
}

/* ============================================================
   Contact
   ============================================================ */
.section--contact {
  text-align: center;
}

.contact-inner {
  max-width: 44rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.contact-title {
  font-size: var(--text-2xl);
  font-weight: 500;
  max-width: 18ch;
}

.contact-lede {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  max-width: 44ch;
  margin: 0 auto;
}

.contact-links {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  list-style: none;
}

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

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-10) clamp(var(--space-6), 5vw, var(--space-16));
  border-top: 1px solid var(--color-divider);
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

/* ============================================================
   Scroll reveal
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 800ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 800ms cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}