/* ==========================================================================
   Coviq.space — Monolith Minimalism
   Pure CSS3 · Luxury monochrome · Architectural editorial
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Custom Properties
   -------------------------------------------------------------------------- */
:root {
  --color-bg: #ffffff;
  --color-bg-soft: #f4f4f4;
  --color-text: #000000;
  --color-text-muted: #5e5e5e;
  --color-accent: #1a1a1a;
  --color-border: #dadada;
  --color-card: #ffffff;
  --color-dark: #000000;
  --color-dark-text: #ffffff;

  --font-display: "Neue Haas Grotesk", "Helvetica Neue", "Space Grotesk", Helvetica, Arial, sans-serif;
  --font-body: "IBM Plex Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-geo: "Space Grotesk", "Neue Haas Grotesk", sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  --container: min(1120px, calc(100% - 2.5rem));
  --header-h: 4.25rem;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --duration: 0.45s;
  --duration-slow: 0.7s;

  --shadow-soft: 0 12px 40px rgba(0, 0, 0, 0.08);
  --shadow-lift: 0 20px 50px rgba(0, 0, 0, 0.12);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

ul,
ol {
  list-style: none;
}

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

button,
input {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

h1, h2, h3, h4 {
  font-family: var(--font-geo);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

::selection {
  background: var(--color-dark);
  color: var(--color-dark-text);
}

/* --------------------------------------------------------------------------
   3. Utilities
   -------------------------------------------------------------------------- */
.container {
  width: var(--container);
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: var(--color-dark);
  color: var(--color-dark-text);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
}

.skip-link:focus {
  top: var(--space-sm);
}

.section-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  letter-spacing: -0.03em;
  font-weight: 500;
}

.section-header {
  margin-bottom: var(--space-xl);
  max-width: 32rem;
}

/* Underline expansion link */
.link-underline {
  display: inline-block;
  margin-top: var(--space-md);
  font-size: 0.875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  position: relative;
  padding-bottom: 0.3rem;
}

.link-underline::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0.35);
  transform-origin: left;
  transition: transform var(--duration) var(--ease);
}

.link-underline:hover::after,
.link-underline:focus-visible::after {
  transform: scaleX(1);
}

/* --------------------------------------------------------------------------
   4. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0.85rem 1.85rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition:
    background var(--duration) var(--ease),
    color var(--duration) var(--ease),
    border-color var(--duration) var(--ease),
    transform var(--duration) var(--ease);
}

.btn--solid {
  background: var(--color-dark);
  color: var(--color-dark-text);
  border-color: var(--color-dark);
}

.btn--solid:hover,
.btn--solid:focus-visible {
  background: transparent;
  color: var(--color-dark);
}

.btn--outline {
  background: transparent;
  color: var(--color-dark);
  border-color: var(--color-dark);
}

.btn--outline:hover,
.btn--outline:focus-visible {
  background: var(--color-dark);
  color: var(--color-dark-text);
}

.btn--solid-light {
  background: var(--color-dark-text);
  color: var(--color-dark);
  border-color: var(--color-dark-text);
}

.btn--solid-light:hover,
.btn--solid-light:focus-visible {
  background: transparent;
  color: var(--color-dark-text);
}

.btn--full {
  width: 100%;
}

/* --------------------------------------------------------------------------
   5. Reveal Animations
   -------------------------------------------------------------------------- */
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(1.75rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  animation: fade-up var(--duration-slow) var(--ease) both;
  animation-timeline: view();
  animation-range: entry 0% cover 28%;
}

.reveal--delay-1 { animation-delay: 0.08s; }
.reveal--delay-2 { animation-delay: 0.16s; }
.reveal--delay-3 { animation-delay: 0.24s; }

/* Fallback for browsers without scroll-driven animations */
@supports not (animation-timeline: view()) {
  .reveal {
    animation: fade-up 0.9s var(--ease) both;
  }
}

/* --------------------------------------------------------------------------
   6. Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  /* Scroll-driven border reveal */
  animation: header-border linear both;
  animation-timeline: scroll();
  animation-range: 0px 60px;
}

@keyframes header-border {
  from { border-bottom-color: transparent; }
  to { border-bottom-color: var(--color-border); }
}

@supports not (animation-timeline: scroll()) {
  .site-header {
    border-bottom-color: var(--color-border);
  }
}

.nav {
  width: var(--container);
  margin-inline: auto;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  position: relative;
}

.nav__logo {
  font-family: var(--font-geo);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  z-index: 110;
}

.nav__menu {
  display: none;
  align-items: center;
  gap: 2rem;
}

.nav__menu a {
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  position: relative;
  padding-bottom: 0.2rem;
  transition: color var(--duration) var(--ease);
}

.nav__menu a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--color-text);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration) var(--ease);
}

.nav__menu a:hover,
.nav__menu a:focus-visible {
  color: var(--color-text);
}

.nav__menu a:hover::after,
.nav__menu a:focus-visible::after {
  transform: scaleX(1);
}

.nav__cta {
  display: none;
  min-height: 2.4rem;
  padding: 0.5rem 1.25rem;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid var(--color-dark);
  transition:
    background var(--duration) var(--ease),
    color var(--duration) var(--ease);
}

.nav__cta:hover,
.nav__cta:focus-visible {
  background: var(--color-dark);
  color: var(--color-dark-text);
}

/* Mobile toggle */
.nav__toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.nav__burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 2rem;
  height: 2rem;
  cursor: pointer;
  z-index: 110;
}

.nav__burger span {
  display: block;
  height: 1px;
  width: 100%;
  background: var(--color-dark);
  transition: transform var(--duration) var(--ease), opacity var(--duration) var(--ease);
}

.nav__toggle:checked + .nav__burger span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.nav__toggle:checked + .nav__burger span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.nav__drawer {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.5rem);
  transition:
    opacity var(--duration) var(--ease),
    visibility var(--duration) var(--ease),
    transform var(--duration) var(--ease);
  z-index: 105;
}

.nav__toggle:checked ~ .nav__drawer {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__drawer ul {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.nav__drawer a {
  font-family: var(--font-geo);
  font-size: clamp(1.75rem, 6vw, 2.5rem);
  letter-spacing: -0.02em;
}

.nav__drawer-cta {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.75rem 2rem;
  border: 1px solid var(--color-dark);
  font-size: 0.875rem !important;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: var(--font-body) !important;
}

@media (min-width: 900px) {
  .nav__menu,
  .nav__cta {
    display: flex;
  }

  .nav__burger,
  .nav__drawer,
  .nav__toggle {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   7. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: flex;
  align-items: center;
  padding: var(--space-xl) 0 var(--space-2xl);
  overflow: hidden;
  background: var(--color-bg);
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(0, 0, 0, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
  pointer-events: none;
}

.hero__shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero__block {
  position: absolute;
  border: 1px solid var(--color-border);
  background: var(--color-bg-soft);
}

.hero__block--1 {
  width: min(38vw, 420px);
  height: min(38vw, 420px);
  top: 8%;
  right: -4%;
  animation: float-block 18s var(--ease) infinite alternate;
}

.hero__block--2 {
  width: min(22vw, 220px);
  height: min(22vw, 220px);
  bottom: 18%;
  right: 18%;
  background: transparent;
  animation: float-block 14s var(--ease) infinite alternate-reverse;
}

.hero__block--3 {
  width: min(14vw, 140px);
  height: min(28vw, 280px);
  top: 28%;
  left: 4%;
  background: var(--color-accent);
  opacity: 0.06;
  border: none;
  animation: float-block 20s var(--ease) infinite alternate;
}

.hero__line {
  position: absolute;
  background: var(--color-border);
}

.hero__line--h {
  height: 1px;
  width: 40%;
  top: 22%;
  left: 0;
  animation: line-grow 3s var(--ease) both;
}

.hero__line--v {
  width: 1px;
  height: 35%;
  bottom: 0;
  right: 32%;
  animation: line-grow-v 3.5s var(--ease) both;
}

@keyframes float-block {
  from { transform: translate(0, 0); }
  to { transform: translate(-12px, 18px); }
}

@keyframes line-grow {
  from { transform: scaleX(0); transform-origin: left; }
  to { transform: scaleX(1); transform-origin: left; }
}

@keyframes line-grow-v {
  from { transform: scaleY(0); transform-origin: bottom; }
  to { transform: scaleY(1); transform-origin: bottom; }
}

.hero__content {
  position: relative;
  z-index: 2;
  width: var(--container);
  margin-inline: auto;
  max-width: 52rem;
  padding-block: var(--space-lg);
}

.hero__eyebrow {
  font-family: var(--font-geo);
  font-size: clamp(1.5rem, 4vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-md);
}

.hero__title {
  font-size: clamp(2.4rem, 7.5vw, 5.25rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.02;
  margin-bottom: var(--space-md);
}

.hero__subtitle {
  max-width: 32rem;
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--color-text-muted);
  font-weight: 300;
  margin-bottom: var(--space-lg);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  right: max(1.25rem, calc((100% - 1120px) / 2));
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  z-index: 2;
}

.hero__scroll span {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  color: var(--color-text-muted);
}

.hero__scroll-line {
  width: 1px;
  height: 3.5rem;
  background: linear-gradient(to bottom, var(--color-dark), transparent);
  animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.7); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

/* --------------------------------------------------------------------------
   8. Philosophy
   -------------------------------------------------------------------------- */
.philosophy {
  padding: var(--space-3xl) 0;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.philosophy__grid {
  display: grid;
  gap: var(--space-xl);
  align-items: end;
}

.philosophy__quote p {
  font-family: var(--font-geo);
  font-size: clamp(2rem, 5.5vw, 3.5rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.15;
}

.philosophy__body {
  max-width: 28rem;
  justify-self: end;
}

.philosophy__body > p:not(.section-label) {
  color: var(--color-text-muted);
  font-weight: 300;
  font-size: 1.0625rem;
}

@media (min-width: 800px) {
  .philosophy__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--space-2xl);
  }
}

/* --------------------------------------------------------------------------
   9. Services
   -------------------------------------------------------------------------- */
.services {
  padding: var(--space-3xl) 0;
  background: var(--color-bg-soft);
}

.services__grid {
  display: grid;
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
}

.service-card {
  background: var(--color-card);
  padding: var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  min-height: 16rem;
  transition:
    background var(--duration) var(--ease),
    color var(--duration) var(--ease);
}

.service-card__icon {
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: auto;
  color: inherit;
}

.service-card__icon svg {
  width: 100%;
  height: 100%;
}

.service-card h3 {
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  font-weight: 300;
  transition: color var(--duration) var(--ease);
}

.service-card:hover,
.service-card:focus-within {
  background: var(--color-dark);
  color: var(--color-dark-text);
}

.service-card:hover p,
.service-card:focus-within p {
  color: rgba(255, 255, 255, 0.65);
}

@media (min-width: 600px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .services__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --------------------------------------------------------------------------
   10. Portfolio
   -------------------------------------------------------------------------- */
.portfolio {
  padding: var(--space-3xl) 0;
  background: var(--color-bg);
}

.portfolio__grid {
  display: grid;
  gap: var(--space-lg);
}

.project__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
}

.project__placeholder {
  width: 100%;
  height: 100%;
  background:
    linear-gradient(135deg, #e8e8e8 0%, #cfcfcf 50%, #b8b8b8 100%);
  filter: grayscale(1);
  transition:
    transform var(--duration-slow) var(--ease),
    filter var(--duration-slow) var(--ease);
}

/* Distinct geometric textures per project */
.project__placeholder--1 {
  background:
    linear-gradient(90deg, #ddd 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(#ddd 1px, transparent 1px) 0 0 / 24px 24px,
    #ececec;
}

.project__placeholder--2 {
  background:
    radial-gradient(circle at 30% 40%, #bbb 0%, transparent 45%),
    linear-gradient(160deg, #f0f0f0, #c8c8c8);
}

.project__placeholder--3 {
  background:
    repeating-linear-gradient(-45deg, #e4e4e4, #e4e4e4 8px, #d0d0d0 8px, #d0d0d0 16px);
}

.project__placeholder--4 {
  background:
    linear-gradient(to right, #111 0 33%, #888 33% 66%, #ddd 66%);
}

.project__placeholder--5 {
  background:
    linear-gradient(180deg, transparent 48%, #aaa 48% 52%, transparent 52%),
    linear-gradient(90deg, transparent 48%, #aaa 48% 52%, transparent 52%),
    #e6e6e6;
}

.project__placeholder--6 {
  background:
    conic-gradient(from 180deg at 50% 50%, #f5f5f5, #aaa, #f5f5f5);
}

.project__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.55);
  opacity: 0;
  transition: opacity var(--duration) var(--ease);
}

.project__overlay span {
  color: var(--color-dark-text);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border-bottom: 1px solid currentColor;
  padding-bottom: 0.25rem;
  transform: translateY(0.5rem);
  transition: transform var(--duration) var(--ease);
}

.project:hover .project__placeholder,
.project:focus-within .project__placeholder {
  transform: scale(1.04);
  filter: grayscale(0.3);
}

.project:hover .project__overlay,
.project:focus-within .project__overlay {
  opacity: 1;
}

.project:hover .project__overlay span,
.project:focus-within .project__overlay span {
  transform: translateY(0);
}

.project__meta {
  margin-top: var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.project__category {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.project__title {
  font-size: 1.25rem;
  font-weight: 500;
}

@media (min-width: 700px) {
  .portfolio__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl) var(--space-md);
  }

  .project:nth-child(3),
  .project:nth-child(4) {
    margin-top: var(--space-xl);
  }
}

@media (min-width: 1000px) {
  .portfolio__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .project:nth-child(3),
  .project:nth-child(4) {
    margin-top: 0;
  }

  .project:nth-child(even) {
    transform: translateY(2.5rem);
  }
}

/* --------------------------------------------------------------------------
   11. Process / Timeline
   -------------------------------------------------------------------------- */
.process {
  padding: var(--space-3xl) 0;
  background: var(--color-bg-soft);
}

.timeline {
  max-width: 40rem;
  margin-inline: auto;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0.55rem;
  top: 0.55rem;
  bottom: 0.55rem;
  width: 1px;
  background: var(--color-dark);
}

.timeline__item {
  display: grid;
  grid-template-columns: 1.25rem 1fr;
  gap: var(--space-md);
  padding-bottom: var(--space-xl);
  position: relative;
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__marker {
  position: relative;
  z-index: 1;
  padding-top: 0.35rem;
}

.timeline__marker span {
  display: block;
  width: 0.75rem;
  height: 0.75rem;
  border: 1px solid var(--color-dark);
  border-radius: 50%;
  background: var(--color-bg-soft);
  transition: background var(--duration) var(--ease), transform var(--duration) var(--ease);
}

.timeline__item:hover .timeline__marker span {
  background: var(--color-dark);
  transform: scale(1.25);
}

.timeline__num {
  display: block;
  font-family: var(--font-geo);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--color-text-muted);
  margin-bottom: 0.4rem;
}

.timeline__content h3 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.timeline__content p {
  color: var(--color-text-muted);
  font-weight: 300;
  max-width: 28rem;
}

@media (min-width: 700px) {
  .timeline {
    max-width: 48rem;
  }

  .timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .timeline__item {
    grid-template-columns: 1fr 1.25rem 1fr;
    gap: var(--space-lg);
  }

  .timeline__marker {
    grid-column: 2;
    grid-row: 1;
    justify-self: center;
  }

  .timeline__content {
    grid-column: 3;
  }

  .timeline__item:nth-child(even) .timeline__content {
    grid-column: 1;
    grid-row: 1;
    text-align: right;
    justify-self: end;
  }

  .timeline__item:nth-child(even) .timeline__marker {
    grid-column: 2;
  }
}

/* --------------------------------------------------------------------------
   12. Metrics
   -------------------------------------------------------------------------- */
.metrics {
  padding: var(--space-2xl) 0;
  background: var(--color-dark);
  color: var(--color-dark-text);
}

.metrics__grid {
  display: grid;
  gap: var(--space-lg);
  text-align: center;
}

.metric {
  padding: var(--space-md) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

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

.metric__value {
  display: block;
  font-family: var(--font-geo);
  font-size: clamp(2.75rem, 7vw, 4.5rem);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 0.65rem;
}

.metric__label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}

@media (min-width: 700px) {
  .metrics__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }

  .metric {
    border-bottom: none;
    border-right: 1px solid rgba(255, 255, 255, 0.15);
    padding: var(--space-md);
  }

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

/* --------------------------------------------------------------------------
   13. Testimonials
   -------------------------------------------------------------------------- */
.testimonials {
  padding: var(--space-3xl) 0;
  background: var(--color-bg);
}

.testimonials__grid {
  display: grid;
  gap: var(--space-md);
}

.testimonial {
  border: 1px solid var(--color-border);
  background: var(--color-card);
  padding: var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  transition:
    transform var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease),
    border-color var(--duration) var(--ease);
}

.testimonial:hover,
.testimonial:focus-within {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lift);
  border-color: var(--color-accent);
}

.testimonial__portrait {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background:
    linear-gradient(145deg, #c8c8c8, #8a8a8a);
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}

.testimonial__portrait--2 {
  background: linear-gradient(145deg, #a0a0a0, #555);
}

.testimonial__portrait--3 {
  background: linear-gradient(145deg, #e0e0e0, #999);
}

.testimonial blockquote p {
  font-family: var(--font-geo);
  font-size: 1.125rem;
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.45;
}

.testimonial__name {
  display: block;
  font-style: normal;
  font-weight: 500;
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
}

.testimonial__company {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

@media (min-width: 800px) {
  .testimonials__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --------------------------------------------------------------------------
   14. Insights
   -------------------------------------------------------------------------- */
.insights {
  padding: var(--space-3xl) 0;
  background: var(--color-bg-soft);
}

.insights__grid {
  display: grid;
  gap: var(--space-lg);
}

.insight {
  display: grid;
  gap: var(--space-md);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  transition: border-color var(--duration) var(--ease);
}

.insight:hover,
.insight:focus-within {
  border-color: var(--color-accent);
}

.insight__thumb {
  aspect-ratio: 16 / 10;
  background: #ddd;
  filter: grayscale(1);
  transition: filter var(--duration) var(--ease);
}

.insight:hover .insight__thumb,
.insight:focus-within .insight__thumb {
  filter: grayscale(0.35);
}

.insight__thumb--1 {
  background:
    linear-gradient(120deg, #f2f2f2 40%, transparent 40%),
    linear-gradient(300deg, #bbb, #888);
}

.insight__thumb--2 {
  background:
    repeating-linear-gradient(90deg, #ccc 0 2px, transparent 2px 28px),
    #eaeaea;
}

.insight__thumb--3 {
  background:
    radial-gradient(ellipse at 70% 30%, #fff 0%, #aaa 70%);
}

.insight__body {
  padding: 0 var(--space-md) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.insight__tag {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.insight h3 {
  font-size: 1.25rem;
}

.insight h3 a {
  transition: opacity var(--duration) var(--ease);
}

.insight h3 a:hover,
.insight h3 a:focus-visible {
  opacity: 0.55;
}

.insight p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  font-weight: 300;
}

.insight time {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

@media (min-width: 800px) {
  .insights__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }
}

/* --------------------------------------------------------------------------
   15. Pricing
   -------------------------------------------------------------------------- */
.pricing {
  padding: var(--space-3xl) 0;
  background: var(--color-bg);
}

.pricing__grid {
  display: grid;
  gap: var(--space-md);
  align-items: stretch;
}

.price-card {
  border: 1px solid var(--color-border);
  background: var(--color-card);
  padding: var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  transition: transform var(--duration) var(--ease);
}

.price-card__header h3 {
  font-size: 1rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: var(--space-md);
}

.price-card__amount {
  font-family: var(--font-geo);
  font-size: clamp(2.5rem, 5vw, 3.25rem);
  letter-spacing: -0.04em;
  line-height: 1;
}

.price-card__amount span {
  font-size: 1.25rem;
  vertical-align: super;
  margin-right: 0.15rem;
}

.price-card__period {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.price-card__features {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  flex: 1;
}

.price-card__features li {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  padding-left: 1.15rem;
  position: relative;
}

.price-card__features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.45rem;
  height: 1px;
  background: currentColor;
}

/* Featured: Professional */
.price-card--featured {
  background: var(--color-dark);
  color: var(--color-dark-text);
  border-color: rgba(255, 255, 255, 0.35);
  transform: scale(1.02);
  box-shadow: var(--shadow-soft);
}

.price-card--featured .price-card__period,
.price-card--featured .price-card__features li {
  color: rgba(255, 255, 255, 0.65);
}

.price-card--featured .price-card__features li::before {
  background: rgba(255, 255, 255, 0.65);
}

@media (min-width: 860px) {
  .pricing__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    align-items: center;
  }

  .price-card--featured {
    transform: scale(1.05);
    z-index: 1;
  }
}

/* --------------------------------------------------------------------------
   16. FAQ
   -------------------------------------------------------------------------- */
.faq {
  padding: var(--space-3xl) 0;
  background: var(--color-bg-soft);
}

.faq__list {
  max-width: 48rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.faq__item {
  border: 1px solid var(--color-border);
  background: var(--color-card);
  transition: border-color var(--duration) var(--ease);
}

.faq__item:hover,
.faq__item[open] {
  border-color: var(--color-accent);
}

.faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 1.25rem 1.35rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-geo);
  font-size: 1.05rem;
  letter-spacing: -0.015em;
}

.faq__item summary::-webkit-details-marker {
  display: none;
}

.faq__icon {
  position: relative;
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.faq__icon::before,
.faq__icon::after {
  content: "";
  position: absolute;
  background: var(--color-dark);
  transition: transform var(--duration) var(--ease), opacity var(--duration) var(--ease);
}

.faq__icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  transform: translateY(-50%);
}

.faq__icon::after {
  top: 0;
  left: 50%;
  width: 1px;
  height: 100%;
  transform: translateX(-50%);
}

.faq__item[open] .faq__icon::after {
  opacity: 0;
  transform: translateX(-50%) rotate(90deg);
}

.faq__answer {
  padding: 0 1.35rem 1.35rem;
  overflow: hidden;
}

.faq__answer p {
  color: var(--color-text-muted);
  font-weight: 300;
  max-width: 38rem;
  animation: fade-up 0.4s var(--ease) both;
}

/* --------------------------------------------------------------------------
   17. Final CTA
   -------------------------------------------------------------------------- */
.cta {
  position: relative;
  padding: var(--space-3xl) 0;
  background: var(--color-dark);
  color: var(--color-dark-text);
  overflow: hidden;
  text-align: center;
}

.cta__lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.cta__lines span {
  position: absolute;
  background: rgba(255, 255, 255, 0.12);
}

.cta__lines span:nth-child(1) {
  width: 1px;
  height: 140%;
  left: 18%;
  top: -20%;
  animation: cta-line 12s linear infinite;
}

.cta__lines span:nth-child(2) {
  width: 1px;
  height: 140%;
  left: 52%;
  top: -10%;
  animation: cta-line 16s linear infinite reverse;
}

.cta__lines span:nth-child(3) {
  height: 1px;
  width: 140%;
  top: 32%;
  left: -20%;
  animation: cta-line-h 14s linear infinite;
}

.cta__lines span:nth-child(4) {
  height: 1px;
  width: 140%;
  top: 72%;
  left: -10%;
  animation: cta-line-h 18s linear infinite reverse;
}

@keyframes cta-line {
  from { transform: translateY(0); }
  to { transform: translateY(8%); }
}

@keyframes cta-line-h {
  from { transform: translateX(0); }
  to { transform: translateX(6%); }
}

.cta__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.cta h2 {
  font-size: clamp(2.25rem, 7vw, 4.5rem);
  letter-spacing: -0.04em;
  max-width: 14ch;
}

/* --------------------------------------------------------------------------
   18. Contact Band
   -------------------------------------------------------------------------- */
.contact-band {
  padding: var(--space-2xl) 0;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.contact-band__label {
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.contact-band__email {
  font-family: var(--font-geo);
  font-size: clamp(1.5rem, 4vw, 2.75rem);
  letter-spacing: -0.03em;
  position: relative;
  display: inline-block;
  padding-bottom: 0.35rem;
}

.contact-band__email::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--duration) var(--ease);
}

.contact-band__email:hover::after,
.contact-band__email:focus-visible::after {
  transform: scaleX(1);
}

/* --------------------------------------------------------------------------
   19. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-dark);
  color: var(--color-dark-text);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer__top {
  display: grid;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer__logo {
  font-family: var(--font-geo);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  display: inline-block;
  margin-bottom: var(--space-sm);
}

.footer__brand p {
  color: rgba(255, 255, 255, 0.55);
  font-weight: 300;
  max-width: 16rem;
  margin-bottom: var(--space-md);
  font-size: 0.9375rem;
}

.footer__social {
  display: flex;
  gap: 0.75rem;
}

.footer__social a {
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background var(--duration) var(--ease),
    border-color var(--duration) var(--ease);
}

.footer__social a:hover,
.footer__social a:focus-visible {
  background: var(--color-dark-text);
  color: var(--color-dark);
  border-color: var(--color-dark-text);
}

.footer__cols {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.footer__col h3 {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  color: rgba(255, 255, 255, 0.45);
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer__col a,
.footer__col span {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--duration) var(--ease);
}

.footer__col a:hover,
.footer__col a:focus-visible {
  color: var(--color-dark-text);
}

.footer__newsletter {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  display: grid;
  gap: var(--space-sm);
}

.footer__newsletter label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

.footer__form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  max-width: 32rem;
}

.footer__form input {
  flex: 1 1 14rem;
  min-height: 3rem;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: transparent;
  color: var(--color-dark-text);
  outline: none;
  transition: border-color var(--duration) var(--ease);
}

.footer__form input::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.footer__form input:focus {
  border-color: var(--color-dark-text);
}

.footer__form .btn--solid {
  background: var(--color-dark-text);
  color: var(--color-dark);
  border-color: var(--color-dark-text);
}

.footer__form .btn--solid:hover,
.footer__form .btn--solid:focus-visible {
  background: transparent;
  color: var(--color-dark-text);
}

.footer__bottom {
  padding-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: flex-start;
}

.footer__bottom p {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.45);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer__legal a {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--duration) var(--ease);
}

.footer__legal a:hover,
.footer__legal a:focus-visible {
  color: var(--color-dark-text);
}

@media (min-width: 800px) {
  .footer__top {
    grid-template-columns: 1.1fr 2fr;
    gap: var(--space-2xl);
  }

  .footer__cols {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* --------------------------------------------------------------------------
   20. Reduced Motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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

/* --------------------------------------------------------------------------
   21. Focus Visibility
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 1px solid var(--color-dark);
  outline-offset: 3px;
}

.cta :focus-visible,
.site-footer :focus-visible,
.metrics :focus-visible {
  outline-color: var(--color-dark-text);
}