/* Akuhl Consulting — dark default, light toggle */

:root,
[data-theme="dark"] {
  --bg: #0a0b0e;
  --bg-elevated: #12141a;
  --bg-soft: #161922;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #e8eaef;
  --text-muted: #9aa3b5;
  --text-faint: #6b7385;
  --accent: #c8a46a;
  --accent-soft: rgba(200, 164, 106, 0.14);
  --accent-2: #6eb5c0;
  --accent-2-soft: rgba(110, 181, 192, 0.12);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --header-bg: rgba(10, 11, 14, 0.78);
  --field-alpha: 0.35;
  --card-hover: rgba(200, 164, 106, 0.06);
  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #f4f1ea;
  --bg-elevated: #fffcf7;
  --bg-soft: #ebe6dc;
  --border: rgba(20, 24, 32, 0.1);
  --border-strong: rgba(20, 24, 32, 0.16);
  --text: #141820;
  --text-muted: #4a5363;
  --text-faint: #6d7688;
  --accent: #8a6428;
  --accent-soft: rgba(138, 100, 40, 0.1);
  --accent-2: #2a6f7a;
  --accent-2-soft: rgba(42, 111, 122, 0.1);
  --shadow: 0 20px 50px rgba(30, 24, 16, 0.08);
  --header-bg: rgba(244, 241, 234, 0.86);
  --field-alpha: 0.55;
  --card-hover: rgba(138, 100, 40, 0.05);
  color-scheme: light;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

.mono,
.eyebrow,
.service-num,
.contact-note,
.site-footer .mono {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
}

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

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

#field {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: var(--field-alpha);
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.brand-mark {
  width: 1.35rem;
  height: 1.35rem;
  border: 1.5px solid var(--accent);
  border-radius: 4px;
  position: relative;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-left: 1.5px solid var(--accent);
  border-bottom: 1.5px solid var(--accent);
  transform: rotate(-45deg) translate(1px, -1px);
  opacity: 0.9;
}

.brand-text span {
  color: var(--text-muted);
  font-weight: 400;
}

.nav {
  display: flex;
  gap: 1.1rem;
  margin-left: auto;
  font-size: 0.92rem;
  color: var(--text-muted);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.theme-toggle {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  position: relative;
  background: var(--bg-elevated);
  transition: border-color 0.2s, background 0.2s;
}

.theme-toggle:hover {
  border-color: var(--border-strong);
}

.theme-icon {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  position: absolute;
  transition: opacity 0.2s, transform 0.2s;
}

.theme-icon-moon {
  box-shadow: inset -3px -1px 0 0 var(--text);
  background: transparent;
}

.theme-icon-sun {
  background: var(--accent);
  box-shadow: 0 0 0 2px var(--bg-elevated), 0 0 0 3px var(--accent);
  opacity: 0;
  transform: scale(0.6);
}

[data-theme="light"] .theme-icon-moon {
  opacity: 0;
  transform: scale(0.6);
}

[data-theme="light"] .theme-icon-sun {
  opacity: 1;
  transform: scale(1);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  font-size: 0.92rem;
  font-weight: 500;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
}

.btn:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
}

.btn-primary {
  background: var(--accent);
  border-color: transparent;
  color: #14120c;
}

[data-theme="light"] .btn-primary {
  color: #fffaf0;
}

.btn-primary:hover {
  filter: brightness(1.05);
  border-color: transparent;
}

.btn-ghost {
  background: transparent;
}

.btn-lg {
  padding: 0.85rem 1.4rem;
  font-size: 1.02rem;
}

.copy-email {
  white-space: nowrap;
}

.copy-email.is-copied {
  background: var(--accent);
  border-color: var(--accent);
  color: #14120c;
}

[data-theme="light"] .copy-email.is-copied {
  color: #fffaf0;
}

.contact-panel .copy-email {
  margin-left: 0.6rem;
}

/* Banner */
.preview-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.55rem 1rem;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  background: var(--accent-soft);
  font-family: "IBM Plex Mono", monospace;
}

.pulse-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent);
  animation: pulse 2s ease-out infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 50%, transparent);
  }
  70% {
    box-shadow: 0 0 0 8px transparent;
  }
  100% {
    box-shadow: 0 0 0 0 transparent;
  }
}

/* Hero */
.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4.5rem 1.5rem 3.5rem;
}

.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.1rem;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.35rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  font-weight: 600;
  margin: 0 0 1.25rem;
  max-width: 16ch;
}

.hero h1 em {
  font-style: normal;
  color: var(--text-muted);
  font-weight: 500;
}

.lede {
  max-width: 52ch;
  color: var(--text-muted);
  font-size: 1.08rem;
  margin: 0 0 1.75rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.75rem;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--border);
}

.stat-row dt {
  font-size: 0.75rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: "IBM Plex Mono", monospace;
  margin-bottom: 0.25rem;
}

.stat-row dd {
  margin: 0;
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* Sections */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
}

.section-alt {
  max-width: none;
  padding-left: 0;
  padding-right: 0;
  background: linear-gradient(
    180deg,
    transparent,
    color-mix(in srgb, var(--bg-soft) 55%, transparent) 12%,
    color-mix(in srgb, var(--bg-soft) 55%, transparent) 88%,
    transparent
  );
}

.section-alt > * {
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section-head {
  margin-bottom: 2rem;
  max-width: 52ch;
}

.section-head h2 {
  font-size: clamp(1.55rem, 3vw, 2rem);
  letter-spacing: -0.025em;
  margin: 0 0 0.75rem;
  font-weight: 600;
}

.section-intro {
  margin: 0;
  color: var(--text-muted);
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  padding: 1.35rem 1.4rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
}

.card:hover {
  border-color: var(--border-strong);
  background: color-mix(in srgb, var(--bg-elevated) 90%, var(--card-hover));
  transform: translateY(-2px);
}

.card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.08rem;
  letter-spacing: -0.01em;
}

.card p {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
}

.tags li {
  font-size: 0.72rem;
  font-family: "IBM Plex Mono", monospace;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.28rem 0.55rem;
  border-radius: 999px;
  background: var(--accent-2-soft);
  color: var(--accent-2);
  border: 1px solid color-mix(in srgb, var(--accent-2) 25%, transparent);
}

/* Services */
.service-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--border);
}

.service {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 1rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}

.service:hover {
  background: var(--card-hover);
}

.service-num {
  color: var(--accent);
  font-size: 0.85rem;
  padding-top: 0.2rem;
}

.service h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.service p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 62ch;
}

/* Skills */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.filter {
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-muted);
  background: var(--bg-elevated);
  transition: all 0.15s;
}

.filter:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

.filter.active {
  color: var(--bg);
  background: var(--text);
  border-color: transparent;
}

[data-theme="dark"] .filter.active {
  color: #0a0b0e;
  background: var(--text);
}

.skill-board {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill {
  padding: 0.55rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: opacity 0.25s, transform 0.2s, border-color 0.2s, color 0.2s,
    background 0.2s;
  cursor: default;
}

.skill:hover,
.skill.is-hot {
  color: var(--text);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  background: var(--accent-soft);
}

.skill.is-dim {
  opacity: 0.28;
  transform: scale(0.97);
}

/* Approach */
.approach-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.approach {
  padding: 1.25rem 1.3rem;
  border-left: 2px solid var(--accent);
  background: var(--bg-elevated);
  border-radius: 0 12px 12px 0;
}

.approach h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.approach p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.94rem;
}

/* Contact */
.contact {
  padding-bottom: 5rem;
}

.contact-panel {
  padding: 2.5rem 1.75rem;
  border: 1px solid var(--border);
  border-radius: 18px;
  background:
    radial-gradient(
      800px 300px at 10% 0%,
      var(--accent-soft),
      transparent 55%
    ),
    var(--bg-elevated);
  text-align: center;
}

.contact-panel h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  letter-spacing: -0.02em;
}

.contact-panel > p {
  color: var(--text-muted);
  max-width: 40ch;
  margin: 0 auto 1.5rem;
}

.contact-note {
  margin: 1.25rem 0 0;
  font-size: 0.78rem;
  color: var(--text-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Footer */
.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.25rem 1.5rem 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-faint);
  font-size: 0.85rem;
  max-width: 1100px;
  margin: 0 auto;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Responsive */
@media (max-width: 820px) {
  .nav {
    display: none;
  }

  .stat-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .card-grid,
  .approach-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3rem;
  }
}

@media (max-width: 480px) {
  .site-header {
    padding: 0.75rem 1rem;
  }

  .brand-text span {
    display: none;
  }

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

  .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .pulse-dot {
    animation: none;
  }
}