/* ==========================================================================
   Signal & Forge — Website Styles
   ========================================================================== */

/* ---------- Custom Properties ---------- */
:root {
  --bg-primary: #0A0A0A;
  --bg-secondary: #0F0F0F;
  --bg-tertiary: #161616;
  --bg-card: #1A1A1A;
  --bg-card-hover: #1E1E1E;

  --text-primary: #F5F2EB;
  --text-secondary: #999999;
  --text-muted: #666666;

  --charcoal: #212121;
  --orange: #EF8114;
  --orange-light: #F49A3A;
  --orange-dark: #D06F0E;
  --orange-glow: rgba(239, 129, 20, 0.12);
  --orange-glow-strong: rgba(239, 129, 20, 0.25);

  --font-display: 'Bebas Neue', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --nav-height: 80px;
  --container-max: 1280px;
  --container-padding: 24px;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

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

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--orange-dark);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--orange);
}

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

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

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

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ---------- Scroll Progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--orange-dark), var(--orange), var(--orange-light));
  z-index: 1001;
  transition: none;
}

/* ---------- Section Headers ---------- */
.section-header {
  margin-bottom: 64px;
}

.section-header__eyebrow {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 16px;
}

.section-header__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--text-primary);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  transition: background-color 0.4s ease, backdrop-filter 0.4s ease;
}

.nav--scrolled {
  background-color: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.06em;
  display: flex;
  gap: 0;
  transition: opacity 0.3s ease;
}

.nav__logo:hover {
  opacity: 0.8;
}

.nav__logo-signal {
  color: var(--text-primary);
}

.nav__logo-forge {
  color: var(--orange);
}

.nav__links {
  display: flex;
  gap: 40px;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  transition: color 0.3s ease;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--orange);
  transition: width 0.3s var(--ease-out-expo);
}

.nav__link:hover {
  color: var(--text-primary);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__link--active {
  color: var(--text-primary);
}

.nav__cta {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bg-primary);
  background-color: var(--orange);
  padding: 10px 24px;
  border-radius: 2px;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.nav__cta:hover {
  background-color: var(--orange-light);
  transform: translateY(-1px);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 101;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav__toggle--active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__toggle--active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle--active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Mobile Menu ---------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  background-color: rgba(10, 10, 10, 0.98);
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.mobile-menu--open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.mobile-menu__link {
  font-family: var(--font-display);
  font-size: 2.5rem;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  transition: color 0.3s ease;
}

.mobile-menu__link:hover {
  color: var(--orange);
}

.mobile-menu__cta {
  color: var(--orange);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background-color: var(--bg-primary);
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(239, 129, 20, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 20% 80%, rgba(239, 129, 20, 0.03) 0%, transparent 50%),
    rgba(10, 10, 10, 0.87);
  z-index: 1;
}

.hero__video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
}

.hero__content {
  position: relative;
  text-align: center;
  z-index: 1;
  padding: 0 var(--container-padding);
}

.hero__wordmark {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0 24px;
  margin-bottom: 24px;
}

.hero__wordmark-signal,
.hero__wordmark-forge {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 10rem);
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: 1.05;
}

.hero__wordmark-signal {
  color: var(--text-primary);
}

.hero__wordmark-forge {
  color: var(--orange);
}

.hero__divider {
  width: 80px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--orange), transparent);
  margin: 0 auto 32px;
}

.hero__tagline {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.375rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  margin-bottom: 48px;
}

.hero__cta {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bg-primary);
  background-color: var(--orange);
  padding: 16px 40px;
  border-radius: 2px;
  transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.hero__cta:hover {
  background-color: var(--orange-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--orange-glow-strong);
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 2;
}

.hero__scroll-text {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--orange), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% {
    opacity: 1;
    transform: scaleY(1);
  }
  50% {
    opacity: 0.4;
    transform: scaleY(0.6);
  }
}

/* ---------- Introduction ---------- */
.intro {
  padding: 160px 0;
  background-color: var(--bg-secondary);
}

.intro__content {
  max-width: 900px;
  margin-bottom: 80px;
}

.intro__eyebrow {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 24px;
}

.intro__statement {
  font-family: var(--font-body);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 300;
  line-height: 1.5;
  color: var(--text-primary);
}

.intro__statement em {
  color: var(--orange);
  font-style: normal;
}

.intro__details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.intro__detail {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.intro__detail-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.intro__detail-text {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ---------- Services ---------- */
.services {
  padding: 160px 0;
  background-color: var(--bg-primary);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}

.services__card {
  background-color: var(--bg-card);
  padding: 48px;
  position: relative;
  overflow: hidden;
  transition: background-color 0.4s ease;
}

.services__card:hover {
  background-color: var(--bg-card-hover);
}

.services__card:hover .services__card-line {
  transform: scaleX(1);
}

.services__card-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  color: rgba(239, 129, 20, 0.12);
  line-height: 1;
  margin-bottom: 24px;
}

.services__card-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.services__card-text {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.services__card-line {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), var(--orange-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease-out-expo);
}

/* ---------- Process ---------- */
.process {
  padding: 160px 0;
  background-color: var(--bg-secondary);
}

.process__phases {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.process__phase-header {
  margin-bottom: 48px;
}

.process__phase-label {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: block;
  margin-bottom: 8px;
}

.process__phase-name {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: 0.06em;
  line-height: 1;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.process__phase-name--forge {
  color: var(--orange);
}

.process__phase-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 480px;
}

.process__steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.process__step {
  display: flex;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.process__step-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.process__step-number {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--orange);
  letter-spacing: 0.04em;
}

.process__step-line {
  width: 1px;
  flex: 1;
  background: linear-gradient(180deg, var(--orange-glow-strong), transparent);
  min-height: 20px;
}

.process__step-content {
  padding-top: 2px;
}

.process__step-title {
  font-family: var(--font-display);
  font-size: 1.375rem;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.process__step-text {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 480px;
}

.process__divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 0;
}

.process__divider-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, rgba(239, 129, 20, 0.3), rgba(239, 129, 20, 0.05));
}

.process__divider-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--orange);
  margin: 8px 0;
}

.process__divider-icon svg {
  width: 20px;
  height: 20px;
}

/* ---------- About ---------- */
.about {
  padding: 160px 0;
  background-color: var(--bg-primary);
}

.about__layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: start;
}

.about__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5rem);
  letter-spacing: 0.04em;
  line-height: 1.05;
  color: var(--text-primary);
  position: sticky;
  top: calc(var(--nav-height) + 40px);
}

.about__right {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.about__block {
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.about__block:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.about__block-label {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.08em;
  color: var(--orange);
  margin-bottom: 16px;
}

.about__block-text {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.about__block-text:last-child {
  margin-bottom: 0;
}

.about__block-text strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* ---------- Values ---------- */
.values {
  padding: 160px 0;
  background-color: var(--bg-secondary);
}

.values__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.values__card {
  background-color: var(--bg-card);
  padding: 48px 40px;
  position: relative;
  transition: background-color 0.4s ease;
}

.values__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease-out-expo);
}

.values__card:hover {
  background-color: var(--bg-card-hover);
}

.values__card:hover::before {
  transform: scaleX(1);
}

.values__card-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.values__card-text {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ---------- CTA ---------- */
.cta {
  padding: 160px 0;
  background-color: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse 70% 50% at 50% 100%, var(--orange-glow) 0%, transparent 70%);
  pointer-events: none;
}

.cta__content {
  position: relative;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta__eyebrow {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 24px;
}

.cta__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  letter-spacing: 0.04em;
  line-height: 1.05;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.cta__text {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 48px;
}

.cta__button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bg-primary);
  background-color: var(--orange);
  padding: 18px 44px;
  border-radius: 2px;
  transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease, gap 0.3s ease;
}

.cta__button:hover {
  background-color: var(--orange-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px var(--orange-glow-strong);
  gap: 20px;
}

.cta__button svg {
  width: 18px;
  height: 18px;
  transition: transform 0.3s ease;
}

.cta__button:hover svg {
  transform: translateX(4px);
}

/* ---------- Footer ---------- */
.footer {
  padding: 80px 0 40px;
  background-color: #050505;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.footer__top {
  display: flex;
  justify-content: space-between;
  gap: 80px;
  margin-bottom: 80px;
}

.footer__brand {
  flex-shrink: 0;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.footer__logo-signal {
  color: var(--text-primary);
}

.footer__logo-forge {
  color: var(--orange);
}

.footer__tagline {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-style: italic;
}

.footer__links {
  display: flex;
  gap: 80px;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__col-title {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.footer__link {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color 0.3s ease;
}

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

.footer__bottom {
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.footer__copyright {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ---------- Animations ---------- */
[data-animate] {
  opacity: 0;
  transition: opacity 0.8s var(--ease-out-quart), transform 0.8s var(--ease-out-quart);
}

[data-animate="fade-up"] {
  transform: translateY(40px);
}

[data-animate="fade-left"] {
  transform: translateX(-30px);
}

[data-animate="fade"] {
  transform: none;
}

[data-animate="scale-x"] {
  transform: scaleX(0);
}

[data-animate="scale-y"] {
  transform: scaleY(0);
}

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

/* Stagger delays */
[data-delay="1"] { transition-delay: 0.1s; }
[data-delay="2"] { transition-delay: 0.2s; }
[data-delay="3"] { transition-delay: 0.3s; }
[data-delay="4"] { transition-delay: 0.4s; }
[data-delay="5"] { transition-delay: 0.5s; }
[data-delay="6"] { transition-delay: 0.6s; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .about__layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about__title {
    position: static;
  }

  .footer__top {
    flex-direction: column;
    gap: 48px;
  }

  .footer__links {
    gap: 48px;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
    --container-padding: 20px;
  }

  .nav__links,
  .nav__cta {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }

  .hero__wordmark {
    flex-direction: column;
    gap: 0;
  }

  .hero__wordmark-signal,
  .hero__wordmark-forge {
    font-size: clamp(3.5rem, 14vw, 6rem);
  }

  .intro {
    padding: 100px 0;
  }

  .intro__details {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .services {
    padding: 100px 0;
  }

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

  .services__card {
    padding: 36px 28px;
  }

  .process {
    padding: 100px 0;
  }

  .values {
    padding: 100px 0;
  }

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

  .values__card {
    padding: 36px 28px;
  }

  .about {
    padding: 100px 0;
  }

  .cta {
    padding: 100px 0;
  }

  .section-header {
    margin-bottom: 48px;
  }

  .footer__links {
    flex-direction: column;
    gap: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero__wordmark-signal,
  .hero__wordmark-forge {
    font-size: clamp(2.5rem, 16vw, 4.5rem);
  }

  .services__card-number {
    font-size: 2.5rem;
  }

  .hero__cta {
    padding: 14px 32px;
  }
}