/* ============================================
   NolHitam — Software Engineering
   Style: Minimal, Dark, Engineering-Focused
   ============================================ */

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

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

body {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background: #0a0a0a;
  color: #f5f5f5;
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

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

/* --- CONTAINER --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- SECTION SHARED --- */
.section {
  padding: 120px 0;
}

.section__header {
  max-width: 640px;
  margin-bottom: 64px;
}

.section__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #888;
  margin-bottom: 16px;
}

.section__title {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: #fff;
}

.section__desc {
  font-size: 1.05rem;
  color: #888;
  line-height: 1.7;
  max-width: 520px;
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.25s ease;
  letter-spacing: -0.01em;
}

.btn--primary {
  background: #fff;
  color: #0a0a0a;
  border: 1px solid #fff;
}

.btn--primary:hover {
  background: #e0e0e0;
  border-color: #e0e0e0;
}

.btn--ghost {
  background: transparent;
  color: #fff;
  border: 1px solid #333;
}

.btn--ghost:hover {
  border-color: #666;
  background: rgba(255, 255, 255, 0.04);
}

.btn--large {
  padding: 16px 40px;
  font-size: 1rem;
}

/* --- NAV --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition:
    background 0.3s ease,
    padding 0.3s ease;
}

.nav--scrolled {
  background: rgba(10, 10, 10, 0.85);
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav__logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: #fff;
  color: #0a0a0a;
  font-size: 0.85rem;
  font-weight: 800;
  border-radius: 6px;
}

.nav__logo-text {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  font-size: 0.85rem;
  font-weight: 500;
  color: #888;
  transition: color 0.2s ease;
}

.nav__link:hover {
  color: #fff;
}

.nav__link--cta {
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  color: #fff;
  font-weight: 500;
  transition: background 0.2s ease;
}

.nav__link--cta:hover {
  background: rgba(255, 255, 255, 0.14);
}

.nav__close {
  display: none;
}

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

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s ease;
}

/* --- HERO --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 120px;
  overflow: hidden;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(
    ellipse 80% 60% at 50% 40%,
    black,
    transparent 70%
  );
  -webkit-mask-image: radial-gradient(
    ellipse 80% 60% at 50% 40%,
    black,
    transparent 70%
  );
}

.hero__glow {
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(
    ellipse,
    rgba(255, 255, 255, 0.06) 0%,
    rgba(255, 255, 255, 0.02) 30%,
    transparent 70%
  );
  pointer-events: none;
}

.hero__glow-secondary {
  position: absolute;
  bottom: 10%;
  right: 5%;
  width: 400px;
  height: 300px;
  background: radial-gradient(
    ellipse,
    rgba(100, 140, 255, 0.04) 0%,
    transparent 60%
  );
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #666;
  margin-bottom: 24px;
}

.hero__title {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero__line {
  display: block;
  overflow: hidden;
  height: 90px;
}

.hero__subtitle {
  font-size: 1.1rem;
  color: #888;
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero__stats {
  display: flex;
  gap: 48px;
  margin-bottom: 40px;
  justify-content: center;
}

.hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero__stat-num {
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.hero__stat-label {
  font-size: 0.75rem;
  color: #666;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0.4;
}

.hero__scroll-text {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #666;
}

.hero__scroll-line {
  width: 1px;
  height: 32px;
  background: #555;
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%,
  100% {
    opacity: 0.3;
    transform: scaleY(1);
  }
  50% {
    opacity: 1;
    transform: scaleY(1.4);
  }
}

/* --- SERVICES --- */
.services {
  background: #0a0a0a;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  overflow: hidden;
}

.service-card {
  background: #0d0d0d;
  padding: 40px 32px;
  transition: background 0.3s ease;
}

.service-card:hover {
  background: #111;
}

.service-card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  margin-bottom: 20px;
  color: #aaa;
  transition:
    color 0.3s ease,
    border-color 0.3s ease;
}

.service-card:hover .service-card__icon {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
}

.service-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #fff;
}

.service-card__desc {
  font-size: 0.85rem;
  color: #777;
  line-height: 1.7;
}

/* --- PROCESS --- */
.process {
  background: #080808;
  overflow: hidden;
}

.process__track {
  position: relative;
  padding: 40px 0;
}

.process__progress {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(255, 255, 255, 0.08);
  transform: translateX(-50%);
}

.process__progress::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: #fff;
  transition: height 0.1s linear;
}

.process__steps {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 100px;
}

.process-step {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  opacity: 0.25;
  transition: opacity 0.6s ease;
}

.process-step--active {
  opacity: 1;
}

.process-step__side {
  display: flex;
  align-items: center;
  gap: 28px;
}

.process-step__side--left {
  justify-content: flex-end;
  text-align: right;
}

.process-step__side--right {
  justify-content: flex-start;
  text-align: left;
}

.process-step__num {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: #555;
  transition: all 0.4s ease;
  background: #080808;
  position: relative;
  z-index: 1;
}

.process-step--active .process-step__num {
  border-color: #fff;
  color: #fff;
  background: #080808;
}

.process-step__content {
  max-width: 380px;
}

.process-step__title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #fff;
}

.process-step__desc {
  font-size: 0.9rem;
  color: #777;
  line-height: 1.7;
}

.process-step__visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  color: #555;
  transition: all 0.4s ease;
  min-width: 160px;
}

.process-step--active .process-step__visual {
  border-color: rgba(255, 255, 255, 0.15);
  color: #aaa;
  background: rgba(255, 255, 255, 0.03);
}

.process-step__visual svg {
  opacity: 0.5;
  transition: opacity 0.4s ease;
}

.process-step--active .process-step__visual svg {
  opacity: 1;
}

.process-step__visual span {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

/* --- WORK --- */
.work {
  background: #0a0a0a;
  overflow: hidden;
}

.work__carousel {
  position: relative;
}

.work__track {
  display: flex;
  gap: 24px;
  padding: 0 30px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: 24px;
}

.work__track::-webkit-scrollbar {
  display: none;
}

.work-card {
  flex: 0 0 calc(33.333% - 16px);
  min-width: 340px;
  scroll-snap-align: start;
  background: #0d0d0d;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  overflow: hidden;
  transition:
    border-color 0.3s ease,
    transform 0.3s ease;
}

.work-card:hover {
  border-color: rgba(255, 255, 255, 0.14);
  transform: translateY(-2px);
}

.work-card__image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.work-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #141414 0%, #1a1a1a 100%);
  position: relative;
}

.work-card__placeholder::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 30px 30px;
}

.work-card__category {
  position: relative;
  z-index: 1;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #555;
}

.work-card__body {
  padding: 28px;
}

.work-card__label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #888;
  margin-bottom: 10px;
}

.work-card__title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #fff;
}

.work-card__desc {
  font-size: 0.85rem;
  color: #777;
  line-height: 1.7;
  margin-bottom: 20px;
}

.work-card__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.work-card__tech span {
  padding: 4px 12px;
  font-size: 0.7rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  color: #999;
}

.work__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-top: 40px;
}

.work__arrow {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: #888;
  transition: all 0.2s ease;
}

.work__arrow:hover {
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
}

.work__dots {
  display: flex;
  gap: 8px;
}

.work__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  transition: background 0.3s ease;
  cursor: pointer;
}

.work__dot--active {
  background: #fff;
}

/* --- CTA --- */
.cta {
  background: #0a0a0a;
  padding: 140px 0;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(
    ellipse,
    rgba(255, 255, 255, 0.03) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.cta__inner {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta__title {
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: #fff;
}

.cta__subtitle {
  font-size: 1.05rem;
  color: #888;
  margin-bottom: 40px;
  line-height: 1.7;
}

/* --- FOOTER --- */
.footer {
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: #080808;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__left {
  display: flex;
  align-items: center;
  gap: 24px;
}

.footer__logo {
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
}

.footer__copy {
  font-size: 0.8rem;
  color: #555;
}

.footer__right {
  display: flex;
  gap: 24px;
}

.footer__link {
  font-size: 0.8rem;
  color: #666;
  transition: color 0.2s ease;
}

.footer__link:hover {
  color: #fff;
}

/* --- MOBILE --- */
@media (max-width: 768px) {
  .nav__links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 10, 0.98);
    flex-direction: column;
    justify-content: center;
    gap: 32px;
    padding: 40px;
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
  }

  .nav__links--open {
    opacity: 1;
    pointer-events: all;
  }

  .nav--menu-open {
    background: transparent !important;
    border-bottom: none !important;
  }

  .nav__close {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #888;
    transition: color 0.2s ease;
  }

  .nav__close:hover {
    color: #fff;
  }

  .nav__link {
    font-size: 1.3rem;
  }

  .nav__toggle {
    display: flex;
  }

  .section {
    padding: 80px 0;
  }

  .section__title {
    font-size: 1.8rem;
  }

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

  .work__track {
    padding: 0 24px;
    padding-bottom: 24px;
    scroll-padding-left: 24px;
  }

  .work-card {
    flex: 0 0 85%;
    min-width: 0;
  }

  .process-step {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .process-step__side {
    flex-direction: row;
    justify-content: flex-start;
    text-align: left;
  }

  .process-step__side--left {
    order: 1;
  }

  .process-step__side--right {
    order: 2;
  }

  .process-step__visual {
    flex-direction: row;
    gap: 16px;
    padding: 16px 20px;
    min-width: 0;
    width: 100%;
  }

  .process-step__visual span {
    white-space: normal;
  }

  .process__progress {
    left: 28px;
  }

  .process-step__num {
    width: 44px;
    height: 44px;
    font-size: 0.75rem;
  }

  .hero__stats {
    gap: 24px;
    flex-wrap: wrap;
  }

  .cta__title {
    font-size: 2rem;
  }

  .footer__inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .footer__left {
    flex-direction: column;
    gap: 8px;
  }

  .hero__inner {
    padding-right: 0;
  }

  .hero__title {
    font-size: clamp(2.2rem, 8vw, 3.2rem);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero__actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .work-card {
    flex: 0 0 90%;
  }

  .hero__stats {
    flex-direction: column;
    gap: 16px;
  }
}

/* --- SELECTION --- */
::selection {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}