:root {
  --bg-deep: #050a12;
  --bg: #0a1628;
  --bg-elevated: #111f35;
  --bg-card: #152a45;
  --stroke: rgba(100, 160, 220, 0.18);
  --stroke-strong: rgba(120, 180, 255, 0.35);
  --text: #e8eef5;
  --text-muted: rgba(232, 238, 245, 0.62);
  --accent: #5b9fd4;
  --accent-glow: rgba(91, 159, 212, 0.45);
  --accent-2: #7eb8e8;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --header-h: 88px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.3, 0.64, 1);
  /* Секции — крупный заголовок; карточки УТП/портфолио — чуть меньше, чтобы строка не рвалась в 3 колонки */
  --content-max: 1280px;
  --fs-title: clamp(1.875rem, 2.65vw, 2.5rem);
  --fs-card-title: clamp(1.3rem, 1.85vw, 1.65rem);
  --fs-sub: clamp(1.125rem, 1.45vw, 1.3125rem);
  --fs-body: clamp(1.125rem, 1.45vw, 1.3125rem);
  --lh-title: 1.18;
  --lh-body: 1.62;
  --calc-card-bg: rgba(91, 159, 212, 0.08);
  --calc-card-bg-hover: rgba(91, 159, 212, 0.12);
  /* Непрозрачный фон выпадающего списка (поверх других полей) */
  --select-panel-bg: var(--bg-card);
}

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

html {
  scroll-behavior: smooth;
}

@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;
  }
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg-deep);
  min-height: 100vh;
  overflow-x: hidden;
}

.mono {
  font-family: var(--mono);
  font-size: 0.9em;
}

/* Noise + grid */
.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.grid-bg {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(80, 140, 200, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(80, 140, 200, 0.07) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, black 20%, transparent 70%);
  animation: grid-drift 28s linear infinite;
}

@keyframes grid-drift {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(48px, 48px);
  }
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.75rem;
  padding: 0 clamp(1.35rem, 4.5vw, 2.75rem);
  background: linear-gradient(180deg, rgba(5, 10, 18, 0.92) 0%, rgba(5, 10, 18, 0.65) 70%, transparent 100%);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  animation: header-in 0.8s var(--ease-out) both;
}

@keyframes header-in {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo img {
  display: block;
  height: auto;
  width: clamp(124px, 32vw, 172px);
}

.nav {
  display: none;
  gap: 2rem;
}

@media (min-width: 768px) {
  .nav {
    display: flex;
  }
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: color 0.25s var(--ease-out);
}

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

.nav a[aria-current="page"] {
  color: var(--accent-2);
}

.header__cta {
  flex-shrink: 0;
  font-size: 0.9375rem;
  padding: 0.72rem 1.4rem;
  min-height: 2.65rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition:
    transform 0.2s var(--ease-out),
    box-shadow 0.25s var(--ease-out),
    background 0.25s,
    border-color 0.25s;
}

a.btn:hover,
a.btn:visited {
  text-decoration: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  color: var(--bg-deep);
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  box-shadow: 0 0 0 0 var(--accent-glow);
}

a.btn--primary:visited {
  color: var(--bg-deep);
}

.btn--primary:hover {
  box-shadow: 0 0 28px var(--accent-glow);
}

.btn--outline {
  color: var(--text);
  background: transparent;
  border-color: var(--stroke-strong);
}

.btn--outline:hover {
  border-color: var(--accent);
  background: rgba(91, 159, 212, 0.08);
}

.btn--ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--stroke);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--stroke-strong);
}

.btn--wide {
  width: 100%;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}

/* Hero */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-h) + 2rem) clamp(1.5rem, 5vw, 3rem) 4.5rem;
  max-width: var(--content-max);
  margin: 0 auto;
}

.hero__glow {
  position: absolute;
  top: 10%;
  left: 50%;
  width: min(90vw, 640px);
  height: min(50vh, 420px);
  transform: translateX(-50%);
  background: radial-gradient(ellipse, rgba(91, 159, 212, 0.22) 0%, transparent 65%);
  filter: blur(40px);
  animation: glow-pulse 6s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes glow-pulse {
  0% {
    opacity: 0.7;
    transform: translateX(-50%) scale(1);
  }
  100% {
    opacity: 1;
    transform: translateX(-50%) scale(1.05);
  }
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-2);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  margin: 0 0 1.25rem;
}

.hero__tag-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
  animation: blink 2.4s ease-in-out infinite;
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.35;
  }
}

.hero__title {
  font-size: clamp(2rem, 6vw, 3.35rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
}

.hero__title-accent {
  background: linear-gradient(120deg, var(--text) 0%, var(--accent-2) 45%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  max-width: 34rem;
  color: var(--text-muted);
  font-size: 1.0625rem;
  margin: 0 0 2rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero__actions .btn {
  font-size: clamp(1rem, 1.25vw, 1.125rem);
  padding: 1rem 2rem;
  min-height: 3.35rem;
  border-radius: var(--radius);
}

.hero__code {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.35rem 1.75rem;
  border-radius: calc(var(--radius) + 4px);
  background: rgba(10, 22, 40, 0.88);
  border: 1px solid var(--stroke);
  max-width: min(42rem, 100%);
  font-size: clamp(0.9375rem, 1.6vw, 1.125rem);
  line-height: 1.55;
  color: var(--text-muted);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.hero__code-line {
  display: block;
  letter-spacing: 0.02em;
}

.hero__code .kw {
  color: #8ec5e8;
}
.hero__code .fn {
  color: #c8e0f5;
}
.hero__code .str {
  color: #7dd3a0;
}

/* Fade / reveal */
.fade-in {
  opacity: 0;
  animation: fade-up 0.9s var(--ease-out) forwards;
  animation-delay: var(--d, 0s);
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.7s var(--ease-out),
    transform 0.7s var(--ease-out);
  transition-delay: calc(var(--i, 0) * 0.08s);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Sections */
.section {
  position: relative;
  z-index: 1;
  padding: 5.25rem clamp(1.5rem, 5vw, 3rem);
  max-width: var(--content-max);
  margin: 0 auto;
}

.section__head {
  margin-bottom: 3rem;
}

.section__title {
  font-size: var(--fs-title);
  font-weight: 600;
  line-height: var(--lh-title);
  margin: 0 0 0.65rem;
  letter-spacing: -0.02em;
}

.section__sub {
  margin: 0;
  max-width: 42rem;
  font-size: var(--fs-sub);
  line-height: var(--lh-body);
  color: var(--text-muted);
}

.section__more {
  margin: 1.1rem 0 0;
}

.section__more-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  font-size: var(--fs-body);
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s var(--ease-out);
}

.section__more-link:hover {
  color: var(--accent-2);
}

.section__more-link::after {
  content: "→";
  font-size: 0.95em;
  transition: transform 0.25s var(--ease-out);
}

.section__more-link:hover::after {
  transform: translateX(4px);
}

/* USP cards */
.usp__grid {
  display: grid;
  gap: 1.75rem;
  align-items: stretch;
}

@media (min-width: 768px) and (max-width: 1023px) {
  .usp__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
  }
}

@media (min-width: 1024px) {
  .usp__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.card {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  padding: 2rem 1.4rem;
  border-radius: calc(var(--radius) + 4px);
  background: linear-gradient(160deg, var(--bg-elevated) 0%, var(--bg-card) 100%);
  border: 1px solid var(--stroke);
  transition:
    border-color 0.3s var(--ease-out),
    transform 0.35s var(--ease-spring),
    box-shadow 0.35s;
}

.card:hover {
  border-color: var(--stroke-strong);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.card__icon {
  font-family: var(--mono);
  font-size: 0.9375rem;
  color: var(--accent);
  margin-bottom: 1.25rem;
  letter-spacing: 0.14em;
}

.card__title {
  font-size: var(--fs-card-title);
  font-weight: 600;
  line-height: var(--lh-title);
  margin: 0 0 0.85rem;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.card__text {
  flex: 1 1 auto;
  margin: 0;
  padding-top: 0.25rem;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-muted);
  text-wrap: pretty;
}

/* Calculator */
.calc {
  display: grid;
  gap: 2.25rem;
  padding: 2.5rem 2.25rem;
  border-radius: calc(var(--radius) + 6px);
  background: var(--bg-elevated);
  border: 1px solid var(--stroke);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.03) inset;
}

@media (min-width: 900px) {
  .calc {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.field {
  display: block;
  margin-bottom: 1.35rem;
}

.field:last-child {
  margin-bottom: 0;
}

.field__label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.field__input,
.field__textarea {
  width: 100%;
  font-family: var(--sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text);
  background: var(--bg-deep);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field__input:focus,
.field__textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91, 159, 212, 0.2);
}

/* Кастомный select — в стиле сайта */
.custom-select {
  position: relative;
  z-index: 0;
}

.custom-select.is-open {
  z-index: 55;
}

.custom-select__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  min-height: 3.35rem;
  padding: 0.8rem 1rem 0.8rem 1.1rem;
  font-family: var(--sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  text-align: left;
  color: var(--text);
  background: var(--calc-card-bg);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.custom-select__trigger:hover {
  border-color: var(--stroke-strong);
  background: var(--calc-card-bg-hover);
}

.custom-select.is-open .custom-select__trigger {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91, 159, 212, 0.2);
}

.custom-select__value {
  flex: 1;
  min-width: 0;
}

.custom-select__caret {
  flex-shrink: 0;
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid var(--accent-2);
  border-bottom: 2px solid var(--accent-2);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.22s var(--ease-out);
  opacity: 0.9;
}

.custom-select.is-open .custom-select__caret {
  transform: rotate(-135deg) translateY(2px);
}

.custom-select__panel {
  position: absolute;
  z-index: 60;
  left: 0;
  right: 0;
  top: calc(100% + 6px);
  margin: 0;
  padding: 0.45rem;
  list-style: none;
  background: var(--select-panel-bg);
  border: 1px solid var(--stroke-strong);
  border-radius: calc(var(--radius-sm) + 4px);
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.06) inset;
  max-height: min(300px, 55vh);
  overflow-y: auto;
}

.custom-select__option {
  margin: 0;
  padding: 0.72rem 0.95rem;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.custom-select__option:hover {
  background: rgba(91, 159, 212, 0.1);
  color: var(--text);
}

.custom-select__option.is-selected {
  color: var(--text);
  background: rgba(91, 159, 212, 0.16);
  box-shadow: inset 0 0 0 1px rgba(91, 159, 212, 0.25);
}

.calc__submit {
  margin-top: 0.25rem;
}

.field--addons {
  border: none;
  padding: 0;
  margin: 0;
}

.field--addons .field__label {
  margin-bottom: 0.35rem;
}

.field__addon-hint {
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--text-muted);
}

.addon {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--stroke);
}

.addon:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.addon__main {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.addon__name {
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text);
  font-weight: 500;
}

.addon__type {
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.9;
}

.addon__side {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.4rem;
  flex-shrink: 0;
}

.addon__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 0.65rem;
  font-family: var(--sans);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1;
  color: var(--accent-2);
  background: var(--calc-card-bg);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.addon__btn:hover {
  background: var(--calc-card-bg-hover);
  border-color: var(--stroke-strong);
  color: var(--text);
}

.addon__btn:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91, 159, 212, 0.25);
}

.addon__done {
  font-size: 1.1rem;
  color: #8fd4a8;
  padding: 0 0.35rem;
}

.addon__clear {
  font-size: 1.35rem;
  line-height: 1;
  padding-bottom: 0.15rem;
}

.addon__stepper {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.addon__count {
  min-width: 2rem;
  text-align: center;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-2);
}

.addon--once .addon__done,
.addon--once .addon__clear {
  display: none;
}

.addon--once.is-active .addon__add {
  display: none;
}

.addon--once.is-active .addon__done {
  display: inline;
}

.addon--once.is-active .addon__clear {
  display: inline-flex;
}

.addon--qty .addon__stepper {
  display: none;
}

.addon--qty.is-open .addon__open-qty {
  display: none;
}

.addon--qty.is-open .addon__stepper {
  display: flex;
}

.calc__result {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 2rem 1.75rem;
  border-radius: calc(var(--radius) + 4px);
  background: rgba(5, 10, 18, 0.6);
  border: 1px solid var(--stroke);
}

.calc__numbers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.calc__block {
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: var(--calc-card-bg);
  border: 1px solid var(--stroke);
}

.calc__label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.calc__value {
  font-size: clamp(1.35rem, 2.8vw, 1.75rem);
  font-weight: 500;
  color: var(--accent-2);
  transition: color 0.2s;
}

.calc__value.is-pulse {
  animation: val-pulse 0.45s var(--ease-out);
}

@keyframes val-pulse {
  0% {
    color: var(--text);
  }
  100% {
    color: var(--accent-2);
  }
}

/* Portfolio */
.portfolio__grid {
  display: grid;
  gap: 1.75rem;
}

@media (min-width: 768px) {
  .portfolio__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.p-card {
  display: block;
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--stroke);
  background: var(--bg-elevated);
  transition:
    transform 0.35s var(--ease-spring),
    border-color 0.3s,
    box-shadow 0.35s;
}

.p-card:hover {
  transform: translateY(-6px);
  border-color: var(--stroke-strong);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

.p-card__media {
  height: 180px;
  background: linear-gradient(135deg, #1a3355 0%, #0d1f38 100%);
  position: relative;
}

.p-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 6px,
    rgba(91, 159, 212, 0.06) 6px,
    rgba(91, 159, 212, 0.06) 7px
  );
}

.p-card__media--b {
  background: linear-gradient(135deg, #1e3d52 0%, #122a3d 100%);
}

.p-card__media--c {
  background: linear-gradient(135deg, #243a5c 0%, #152238 100%);
}

.p-card__media--d {
  background: linear-gradient(135deg, #1a2848 0%, #0f1830 100%);
}

.p-card__media--e {
  background: linear-gradient(135deg, #163040 0%, #0c2230 100%);
}

.p-card__media--f {
  background: linear-gradient(135deg, #2a2048 0%, #151028 100%);
}

.p-card__media--g {
  background: linear-gradient(135deg, #1e3048 0%, #101a2a 100%);
}

.p-card__media--h {
  background: linear-gradient(135deg, #223850 0%, #142030 100%);
}

.p-card__tag {
  display: inline-block;
  margin: 1.35rem 1.65rem 0;
  font-size: 0.8125rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.p-card__title {
  margin: 0.5rem 1.65rem 0.35rem;
  font-size: var(--fs-card-title);
  font-weight: 600;
  line-height: var(--lh-title);
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.p-card__desc {
  margin: 0 1.65rem 1.65rem;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-muted);
}

.p-card:has(.p-card__excerpt) .p-card__desc {
  margin-bottom: 0.5rem;
}

.p-card__excerpt {
  margin: 0 1.65rem 0.85rem;
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  line-height: 1.55;
  color: var(--text-muted);
}

.p-card__meta {
  margin: 0 1.65rem 1.65rem;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.p-card__meta-sep {
  margin: 0 0.4rem;
  opacity: 0.4;
}

/* Страница портфолио */
.section.pf-page {
  padding-top: calc(var(--header-h) + 3.5rem);
}

.pf-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 2.25rem;
}

.pf-filter {
  font-family: var(--sans);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.55rem 1.2rem;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: var(--calc-card-bg);
  color: var(--text-muted);
  cursor: pointer;
  transition:
    background 0.2s var(--ease-out),
    border-color 0.2s var(--ease-out),
    color 0.2s var(--ease-out);
}

.pf-filter:hover {
  color: var(--text);
  border-color: var(--stroke-strong);
  background: var(--calc-card-bg-hover);
}

.pf-filter:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91, 159, 212, 0.25);
}

.pf-filter.is-active {
  border-color: rgba(91, 159, 212, 0.45);
  background: rgba(91, 159, 212, 0.14);
  color: var(--accent-2);
}

.pf-item.is-hidden {
  display: none;
}

.portfolio-load-error {
  grid-column: 1 / -1;
  margin: 0;
  padding: 1.5rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--stroke);
  background: rgba(91, 159, 212, 0.08);
  color: var(--text-muted);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
}

/* Одинаковая высота карточек в строке (страница портфолио) */
.portfolio__grid.pf-grid {
  align-items: stretch;
}

.pf-grid .pf-item {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.pf-grid .pf-item .p-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.pf-grid .p-card__media {
  flex-shrink: 0;
}

.pf-grid .p-card__meta {
  margin-top: auto;
}

.pf-back {
  margin: 3.5rem 0 0;
  padding-bottom: 0.5rem;
}

.pf-back__link {
  font-weight: 600;
  font-size: var(--fs-body);
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s var(--ease-out);
}

.pf-back__link:hover {
  color: var(--accent-2);
}

/* Страница кейса */
.case-page {
  padding-top: calc(var(--header-h) + 2.5rem);
}

.case-back {
  margin: 0 0 1.75rem;
}

.case-back__link {
  font-weight: 600;
  font-size: var(--fs-body);
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s var(--ease-out);
}

.case-back__link:hover {
  color: var(--accent-2);
}

.case-hero {
  margin-bottom: 3rem;
  max-width: 44rem;
}

.case-hero__tag {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.case-hero__title {
  margin: 0 0 0.65rem;
  font-size: clamp(1.875rem, 3.5vw, 2.65rem);
  font-weight: 600;
  line-height: var(--lh-title);
  letter-spacing: -0.02em;
}

.case-hero__stack {
  margin: 0 0 1.25rem;
  font-size: 0.9375rem;
  color: var(--accent-2);
}

.case-hero__lead {
  margin: 0;
  font-size: var(--fs-sub);
  line-height: var(--lh-body);
  color: var(--text-muted);
}

.case-block {
  margin-bottom: 3.5rem;
}

.case-block__title {
  margin: 0 0 0.5rem;
  font-size: var(--fs-title);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.case-block__sub {
  margin: 0 0 1.75rem;
  max-width: 40rem;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-muted);
}

.case-gallery {
  display: grid;
  gap: 1.75rem;
}

@media (min-width: 640px) {
  .case-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .case-gallery {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.case-shot {
  margin: 0;
}

.case-shot .case-shot__plate.p-card__media {
  height: auto;
  min-height: 0;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-sm);
}

.case-shot__img-wrap {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--stroke);
  background: rgba(0, 0, 0, 0.15);
}

.case-shot__img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
}

.case-shot__caption {
  margin-top: 0.65rem;
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--text-muted);
}

.case-video__ratio {
  position: relative;
  width: 100%;
  max-width: 960px;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--stroke);
  background: #000;
}

.case-video__iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.case-video__file {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

.case-video__note {
  margin: 0.85rem 0 0;
  max-width: 42rem;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-muted);
}

.case-video__placeholder {
  max-width: 42rem;
  padding: 2rem 1.75rem;
  border-radius: var(--radius);
  border: 1px dashed var(--stroke);
  background: rgba(91, 159, 212, 0.05);
}

.case-video__placeholder-title {
  margin: 0 0 0.5rem;
  font-weight: 600;
  font-size: var(--fs-card-title);
  color: var(--text);
}

.case-video__placeholder-text {
  margin: 0;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-muted);
}

.case-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

.case-missing {
  padding-top: calc(var(--header-h) + 4rem);
  padding-bottom: 4rem;
  text-align: center;
}

.case-missing__title {
  margin: 0 0 0.75rem;
  font-size: var(--fs-title);
  font-weight: 600;
}

.case-missing__text {
  margin: 0 0 1.75rem;
  color: var(--text-muted);
  font-size: var(--fs-body);
}

.case-missing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

/* Footer */
.footer {
  position: relative;
  z-index: 1;
  padding: 3rem clamp(1.25rem, 4vw, 2.5rem);
  border-top: 1px solid var(--stroke);
  text-align: center;
}

.footer img {
  opacity: 0.85;
  margin-bottom: 0.75rem;
}

.footer__copy {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Modal */
.modal[hidden] {
  display: none !important;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 2rem);
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 12, 0.72);
  backdrop-filter: blur(8px);
  animation: modal-bg 0.35s var(--ease-out) both;
}

@keyframes modal-bg {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal__panel {
  position: relative;
  width: min(100%, 600px);
  max-height: min(92vh, 800px);
  overflow-y: auto;
  padding: 1.75rem 1.55rem 1.65rem;
  border-radius: calc(var(--radius) + 4px);
  background: linear-gradient(165deg, var(--bg-elevated) 0%, var(--bg-deep) 100%);
  border: 1px solid var(--stroke-strong);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.04) inset;
  animation: modal-in 0.45s var(--ease-spring) both;
}

@keyframes modal-in {
  from {
    opacity: 0;
    transform: translateY(24px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal__close {
  position: absolute;
  top: 0.55rem;
  right: 0.55rem;
  width: 2.35rem;
  height: 2.35rem;
  border: none;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s;
}

.modal__close:hover {
  background: rgba(255, 255, 255, 0.12);
}

.modal__title {
  margin: 0 2.75rem 0.5rem 0;
  font-size: clamp(1.5rem, 3.2vw, 1.85rem);
  font-weight: 600;
  line-height: 1.22;
  letter-spacing: -0.02em;
}

.modal__intro {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.5;
}

.modal__panel .field {
  margin-bottom: 0.85rem;
}

.modal__panel .field__label {
  font-size: 0.75rem;
  margin-bottom: 0.38rem;
  letter-spacing: 0.065em;
}

.modal__panel .field__input,
.modal__panel .field__textarea {
  font-size: 1rem;
  line-height: 1.45;
  padding: 0.65rem 0.85rem;
}

.modal__panel .field__input {
  min-height: 2.85rem;
}

.modal__panel .field__textarea {
  min-height: 6.25rem;
  resize: vertical;
}

.modal__panel .form__contacts {
  gap: 0;
}

.modal__panel .form__contacts .field {
  margin-bottom: 0.7rem;
}

.modal__panel .btn.btn--wide {
  padding-top: 0.78rem;
  padding-bottom: 0.78rem;
  font-size: 0.9375rem;
  margin-top: 0.25rem;
}

.form__contacts {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.form__error {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  color: #f0a8a8;
}

.modal__panel .form__error {
  margin: 0 0 0.55rem;
  font-size: 0.8125rem;
}

.modal__success {
  margin: 1rem 0 0;
  color: #8fd4a8;
  font-size: 0.875rem;
}

.modal__panel .modal__success {
  margin: 0.85rem 0 0;
  font-size: 0.875rem;
}