/* ========================================
   Stapolin — Website Design & SEO
   Brand: Black #0a0a0a | Gold #EBB71F | White
   ======================================== */

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

:root {
  --black: #0a0a0a;
  --black-light: #141414;
  --black-card: #1a1a1a;
  --gold: #EBB71F;
  --gold-dark: #c99a10;
  --gold-glow: rgba(235, 183, 31, 0.15);
  --white: #ffffff;
  --grey-100: #f5f5f5;
  --grey-200: #e5e5e5;
  --grey-400: #a3a3a3;
  --grey-600: #525252;
  --font: 'Outfit', system-ui, -apple-system, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-h: 72px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--grey-200);
  background: var(--black);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-gold {
  color: var(--gold);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--gold);
  color: var(--black);
  border-color: var(--gold);
}

.btn--primary:hover {
  background: var(--gold-dark);
  border-color: var(--gold-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(235, 183, 31, 0.3);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn--outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn--lg {
  padding: 1rem 2.25rem;
  font-size: 1rem;
}

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

/* ---- Header ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background var(--transition), box-shadow var(--transition);
}

.header--scrolled {
  background: rgba(10, 10, 10, 0.95);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo img {
  height: 36px;
  width: auto;
  filter: brightness(0) invert(1);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--grey-400);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: var(--white);
}

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

.nav__link--cta {
  padding: 0.5rem 1.25rem;
  background: var(--gold);
  color: var(--black) !important;
  border-radius: 6px;
  font-weight: 600;
}

.nav__link--cta::after {
  display: none;
}

.nav__link--cta:hover {
  background: var(--gold-dark);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all var(--transition);
  border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 3rem) 0 4rem;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, var(--gold-glow) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 20% 80%, rgba(235, 183, 31, 0.05) 0%, transparent 50%),
    var(--black);
}

.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 20%, transparent 70%);
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero__eyebrow {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.25rem;
}

.hero__title {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 1.5rem;
}

.hero__subtitle {
  font-size: 1.125rem;
  color: var(--grey-400);
  max-width: 480px;
  margin-bottom: 2.5rem;
}

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

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__logo-img {
  max-width: 420px;
  width: 100%;
  opacity: 0.9;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s ease-in-out infinite;
}

.hero__scroll a {
  color: var(--grey-600);
  transition: color var(--transition);
}

.hero__scroll a:hover {
  color: var(--gold);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ---- Quick Bar ---- */
.quick-bar {
  background: var(--black-light);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 1.5rem 0;
}

.quick-bar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.quick-bar__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  border-radius: var(--radius);
  transition: background var(--transition);
  text-align: center;
}

.quick-bar__item:hover {
  background: rgba(235, 183, 31, 0.08);
}

.quick-bar__item span {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--white);
}

.quick-bar__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gold-glow);
  border: 1px solid rgba(235, 183, 31, 0.2);
  border-radius: 50%;
  color: var(--gold);
}

.quick-bar__icon svg {
  width: 22px;
  height: 22px;
}

/* ---- Sections ---- */
.section {
  padding: 6rem 0;
}

.section-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--grey-400);
  max-width: 560px;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header .section-desc {
  margin: 0 auto;
}

/* ---- About ---- */
.about {
  background: var(--black-light);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about__content p {
  color: var(--grey-400);
  margin-bottom: 1.25rem;
}

.about__stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

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

.about__stats strong {
  font-size: 1.5rem;
  font-weight: 700;
}

.about__stats span {
  font-size: 0.8125rem;
  color: var(--grey-600);
}

.about__card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.about__card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.about__card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.375rem 0.875rem;
  background: var(--gold);
  color: var(--black);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 4px;
}

/* ---- Services ---- */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--black-card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all var(--transition);
}

.service-card:hover {
  border-color: rgba(235, 183, 31, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.service-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gold-glow);
  border-radius: 12px;
  color: var(--gold);
  margin-bottom: 1.25rem;
}

.service-card__icon svg {
  width: 26px;
  height: 26px;
}

.service-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.75rem;
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--grey-600);
  line-height: 1.6;
}

/* ---- Portfolio ---- */
.portfolio {
  background: var(--black-light);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.portfolio__item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--black-card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  cursor: pointer;
  transition: all var(--transition);
}

.portfolio__item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: rgba(235, 183, 31, 0.2);
}

.portfolio__item img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  object-position: top;
  transition: transform 0.5s ease;
}

.portfolio__item:hover img {
  transform: scale(1.05);
}

.portfolio__item figcaption {
  padding: 1.25rem;
}

.portfolio__tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.375rem;
}

.portfolio__item h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
}

/* ---- Process ---- */
.process__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.process__step {
  text-align: center;
  padding: 2rem 1.5rem;
  position: relative;
}

.process__number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gold);
  opacity: 0.3;
  margin-bottom: 1rem;
  line-height: 1;
}

.process__step h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.75rem;
}

.process__step p {
  font-size: 0.9375rem;
  color: var(--grey-600);
}

/* ---- CTA Banner ---- */
.cta-banner {
  padding: 5rem 0;
  background:
    linear-gradient(135deg, rgba(235, 183, 31, 0.12) 0%, transparent 50%),
    var(--black-light);
  border-top: 1px solid rgba(235, 183, 31, 0.15);
  border-bottom: 1px solid rgba(235, 183, 31, 0.15);
}

.cta-banner__inner {
  text-align: center;
}

.cta-banner h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.75rem;
}

.cta-banner p {
  color: var(--grey-400);
  font-size: 1.0625rem;
  margin-bottom: 2rem;
}

/* ---- Contact ---- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}

.contact__info p {
  color: var(--grey-400);
  margin-bottom: 2rem;
}

.contact__details li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact__details svg {
  width: 22px;
  height: 22px;
  color: var(--gold);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact__details strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.125rem;
}

.contact__details span,
.contact__details a {
  font-size: 0.9375rem;
  color: var(--grey-400);
}

.contact__details a:hover {
  color: var(--gold);
}

.contact__form {
  position: relative;
  background: var(--black-card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.optional {
  color: var(--grey-600);
  font-weight: 400;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font);
  font-size: 0.9375rem;
  color: var(--white);
  background: var(--black);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  transition: border-color var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--grey-600);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23a3a3a3' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-alert {
  margin-bottom: 1.25rem;
  padding: 0.875rem 1rem;
  font-size: 0.9375rem;
  border-radius: 8px;
  text-align: center;
}

.form-alert--success {
  color: #4ade80;
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.25);
}

.form-alert--error {
  color: #f87171;
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.25);
}

.field-error {
  margin-top: 0.375rem;
  font-size: 0.8125rem;
  color: #f87171;
}

.form-group input[aria-invalid="true"],
.form-group textarea[aria-invalid="true"] {
  border-color: #f87171;
}

.form-honeypot {
  display: none !important;
  visibility: hidden !important;
  position: absolute !important;
  left: -9999px !important;
  top: auto !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.form-honeypot[hidden] {
  display: none !important;
}

.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

/* ---- Footer ---- */
.footer {
  background: var(--black-light);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 4rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
}

.footer__brand img {
  margin-bottom: 1rem;
  max-width: 160px;
}

.footer__brand p {
  font-size: 0.9375rem;
  color: var(--grey-600);
  max-width: 280px;
}

.footer__links h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__links li {
  margin-bottom: 0.625rem;
}

.footer__links a {
  font-size: 0.9375rem;
  color: var(--grey-600);
}

.footer__links a:hover {
  color: var(--gold);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 1.5rem 0;
}

.footer__bottom p {
  font-size: 0.8125rem;
  color: var(--grey-600);
  text-align: center;
}

/* ---- Reveal Animations ---- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal--delay { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__visual {
    order: -1;
  }

  .hero__logo-img {
    max-width: 280px;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .portfolio__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process__steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

@media (max-width: 768px) {
  :root {
    --header-h: 64px;
  }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(16px);
    padding: 1.5rem;
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
  }

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

  .nav__list li {
    width: 100%;
  }

  .nav__link {
    display: block;
    padding: 0.875rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav__link--cta {
    margin-top: 0.5rem;
    text-align: center;
  }

  .nav-toggle {
    display: flex;
  }

  .quick-bar__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .about__stats {
    flex-wrap: wrap;
    gap: 1.5rem;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .section {
    padding: 4rem 0;
  }

  .contact__form {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .quick-bar__grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
  }

  .quick-bar__item {
    padding: 0.75rem 0.5rem;
  }

  .quick-bar__icon {
    width: 40px;
    height: 40px;
  }
}