/* =============================================
   Skill Studio — AI Consulting Website
   ============================================= */

:root {
  --black: #0a0a0f;
  --ink: #0d1117;
  --charcoal: #111827;
  --slate: #2a2a32;
  --steel: #6e6e7a;
  --silver: #9e9ea8;
  --mist: #c8c8d0;
  --cloud: #e8e8ed;
  --snow: #f4f4f7;
  --white: #ffffff;
  --amber: #06b6d4;
  --amber-light: #22d3ee;
  --amber-glow: rgba(6, 182, 212, 0.12);
  --amber-glow-strong: rgba(6, 182, 212, 0.25);
  --blue-subtle: rgba(6, 182, 212, 0.06);

  --font-display: 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--white);
  background: var(--black);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: 1220px; margin: 0 auto; padding: 0 2rem; }
.accent { color: var(--amber); }
.italic { font-style: italic; }

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.2rem 0;
  transition: all 0.4s var(--ease-out);
}

.nav.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 0.8rem 0;
}

.nav__inner {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.01em;
}

.nav__logo svg { flex-shrink: 0; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav__link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--silver);
  transition: color 0.3s;
}

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

.nav__cta-btn {
  padding: 0.55rem 1.5rem;
  background: var(--amber);
  color: var(--black) !important;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.85rem;
  transition: all 0.3s var(--ease-out);
}

.nav__cta-btn:hover {
  background: var(--amber-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px var(--amber-glow-strong);
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  margin: 5px 0;
  transition: all 0.3s;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.92rem;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.35s var(--ease-out);
  text-decoration: none;
  letter-spacing: 0.01em;
}

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

.btn--primary:hover {
  background: var(--amber-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px var(--amber-glow-strong);
}

.btn--ghost {
  background: rgba(255,255,255,0.05);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.12);
}

.btn--ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.btn__arrow { transition: transform 0.25s; font-size: 1.1em; }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* ---- Sections ---- */
.section { padding: 7rem 0; position: relative; }

.section--light {
  background: var(--snow);
  color: var(--ink);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--amber);
  margin-bottom: 1.2rem;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--amber);
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

.section--light .section-title { color: var(--ink); }

.section-text {
  font-size: 1.05rem;
  color: var(--silver);
  max-width: 560px;
  line-height: 1.75;
}

.section--light .section-text { color: var(--steel); }

.section-header {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 4rem;
}

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

/* ---- Hero ---- */
.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* ---- Services Grid ---- */
.services {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.svc {
  background: var(--charcoal);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 16px;
  padding: 2.2rem;
  transition: all 0.4s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.svc::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--amber), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.svc:hover {
  transform: translateY(-6px);
  border-color: rgba(6,182,212,0.2);
  box-shadow: 0 24px 64px rgba(0,0,0,0.4);
}

.svc:hover::before { opacity: 1; }

.svc__icon {
  width: 52px;
  height: 52px;
  background: var(--amber-glow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--amber);
  margin-bottom: 1.5rem;
}

.svc__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.svc__text {
  font-size: 0.9rem;
  color: var(--steel);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.svc__link {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--amber);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: gap 0.3s;
}

.svc__link:hover { gap: 0.7rem; }

/* ---- Feature blocks ---- */
.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.feature--reverse { direction: rtl; }
.feature--reverse > * { direction: ltr; }

.feature__list {
  list-style: none;
  margin: 1.5rem 0 2rem;
}

.feature__list li {
  padding: 0.5rem 0;
  padding-left: 1.6rem;
  position: relative;
  font-size: 0.95rem;
  color: var(--silver);
}

.feature__list li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.85rem;
  width: 8px; height: 8px;
  background: var(--amber);
  border-radius: 2px;
  transform: rotate(45deg);
}

.section--light .feature__list li { color: var(--steel); }

/* ---- Terminal block ---- */
.terminal {
  background: var(--ink);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  overflow: hidden;
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.8rem 1rem;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.terminal__dot { width: 10px; height: 10px; border-radius: 50%; }
.terminal__dot--red { background: #ff5f57; }
.terminal__dot--yellow { background: #febc2e; }
.terminal__dot--green { background: #28c840; }

.terminal__title {
  font-size: 0.72rem;
  color: var(--steel);
  margin-left: 0.8rem;
  font-weight: 500;
}

.terminal__body {
  padding: 1.5rem;
  font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace;
  font-size: 0.82rem;
  line-height: 1.9;
  color: var(--silver);
}

.terminal__body .cmd { color: var(--steel); }
.terminal__body .hl { color: var(--amber); }
.terminal__body .ok { color: #28c840; }
.terminal__body .dim { color: var(--slate); }

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

.stat-item {
  text-align: center;
  padding: 2.5rem 1rem;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px;
  transition: all 0.3s var(--ease-out);
}

.stat-item:hover {
  background: rgba(255,255,255,0.04);
  border-color: rgba(6,182,212,0.15);
  transform: translateY(-3px);
}

.stat-item__number {
  font-family: var(--font-display);
  font-size: 2.8rem;
  color: var(--amber);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-item__label {
  font-size: 0.85rem;
  color: var(--steel);
  font-weight: 500;
}

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

.testi {
  background: var(--charcoal);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 16px;
  padding: 2rem;
}

.testi__stars {
  color: var(--amber);
  font-size: 0.9rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.testi__quote {
  font-size: 1rem;
  color: var(--silver);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.testi__author { font-size: 0.88rem; font-weight: 700; color: var(--white); }
.testi__role { font-size: 0.8rem; color: var(--steel); }

/* ---- CTA Banner ---- */
.cta-banner {
  padding: 6rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 800px; height: 400px;
  background: radial-gradient(ellipse, var(--amber-glow-strong) 0%, transparent 60%);
  pointer-events: none;
}

.cta-banner__content { position: relative; z-index: 1; }

.cta-banner__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--white);
  margin-bottom: 1rem;
}

.cta-banner__text {
  font-size: 1.1rem;
  color: var(--silver);
  max-width: 500px;
  margin: 0 auto 2.5rem;
}

.cta-banner__btns {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---- Pricing ---- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  column-gap: 1.25rem;
  row-gap: 0.2rem;
}

.pricing-card {
  background: var(--charcoal);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 16px;
  padding: 2rem;
  position: relative;
  transition: all 0.4s var(--ease-out);
  display: grid;
  grid-row: span 6;
  grid-template-rows: subgrid;
}

.pricing-card--featured {
  border-color: var(--amber);
  box-shadow: 0 0 0 1px var(--amber);
}

.pricing-card--featured::before {
  content: none;
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--amber);
  color: var(--black);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.3rem 1rem;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.pricing-card__name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 0.3rem;
}

.pricing-card__desc {
  font-size: 0.88rem;
  color: var(--steel);
  margin-bottom: 0;
}

.pricing-card__price {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--white);
  margin-bottom: 0;
  align-self: end;
}

.pricing-card__vat {
  font-size: 0.75rem;
  color: var(--steel);
  margin-bottom: 0;
  align-self: start;
}

.pricing-card__price span {
  font-size: 1rem;
  color: var(--steel);
  font-family: var(--font-body);
}

.pricing-card__features { list-style: none; margin-top: 0.8rem; margin-bottom: 1rem; }

.pricing-card__features li {
  padding: 0.5rem 0;
  padding-left: 1.6rem;
  position: relative;
  font-size: 0.9rem;
  color: var(--silver);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.pricing-card__features li:last-child { border-bottom: none; }

.pricing-card__features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--amber);
  font-weight: 700;
}

/* ---- Process steps ---- */
.process { counter-reset: step; }

.process__step {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  align-items: start;
}

.process__number {
  width: 56px; height: 56px;
  border: 2px solid var(--amber);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--amber);
}

.process__content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.process__content p {
  font-size: 0.92rem;
  color: var(--silver);
  line-height: 1.7;
}

.section--light .process__content p { color: var(--steel); }
.section--light .process__content h3 { color: var(--ink); }

/* ---- Page Hero (internal pages) ---- */
.page-hero {
  padding: 10rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -30%; right: -20%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--amber-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.page-hero::after {
  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: 80px 80px;
  mask-image: radial-gradient(ellipse at 60% 40%, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 60% 40%, black 30%, transparent 70%);
  pointer-events: none;
}

.page-hero__content {
  position: relative;
  z-index: 1;
  max-width: 650px;
}

.page-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.025em;
  margin-bottom: 1.2rem;
}

.page-hero__text {
  font-size: 1.15rem;
  color: var(--silver);
  line-height: 1.75;
}

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

.contact-info__item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-info__icon {
  width: 44px; height: 44px;
  background: var(--amber-glow);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
  color: var(--amber);
}

.contact-info__label { font-weight: 700; font-size: 0.9rem; }
.contact-info__value { font-size: 0.88rem; color: var(--steel); }

.form {
  background: var(--charcoal);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 16px;
  padding: 2.5rem;
}

.form__group { margin-bottom: 1.2rem; }

.form__label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.92rem;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  background: var(--ink);
  color: var(--white);
  transition: all 0.3s;
  outline: none;
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  border-color: var(--amber);
  box-shadow: 0 0 0 3px var(--amber-glow);
}

.form__textarea { resize: vertical; min-height: 130px; }

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

.form__select option { background: var(--ink); color: var(--white); }

/* ---- FAQ ---- */
.faq-item {
  background: var(--charcoal);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.faq-item h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.faq-item p {
  font-size: 0.9rem;
  color: var(--steel);
  line-height: 1.65;
}

/* ---- Callout ---- */
.callout {
  margin-top: 2.5rem;
  padding: 1.5rem;
  background: var(--amber-glow);
  border-left: 3px solid var(--amber);
  border-radius: 10px;
}

.callout h4 { font-size: 1rem; margin-bottom: 0.3rem; }
.callout p { font-size: 0.88rem; color: var(--silver); }

/* ---- Logos bar ---- */
.logos-bar {
  padding: 4rem 0;
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.logos-bar__label {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--steel);
  margin-bottom: 2rem;
}

.logos-bar__items {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4rem;
  flex-wrap: wrap;
  opacity: 0.4;
}

.logos-bar__item {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--mist);
  white-space: nowrap;
}

/* ---- Footer ---- */
.footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 4rem 0 2.5rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer__brand-text {
  font-size: 0.88rem;
  color: var(--steel);
  line-height: 1.7;
  margin-top: 1rem;
  max-width: 300px;
}

.footer__heading {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--white);
  margin-bottom: 1.2rem;
}

.footer__links { list-style: none; }
.footer__links li { margin-bottom: 0.6rem; }

.footer__links a {
  font-size: 0.88rem;
  color: var(--steel);
  transition: color 0.3s;
}

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

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--slate);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero-cards-wrap { display: none; }
  .feature { grid-template-columns: 1fr; gap: 3rem; }
  .feature--reverse { direction: ltr; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .testimonials { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav__links { display: none; }
  .nav__links--open {
    display: flex;
    position: fixed;
    top: 0; left: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background: rgba(10,10,15,1);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    z-index: 99;
  }
  .nav__links--open .nav__link { font-size: 1.3rem; color: var(--white); }
  .nav__toggle { display: block; z-index: 101; }
  .services { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 440px; margin-left: auto; margin-right: auto; }
  .pricing-card { padding: 1.2rem; overflow: hidden; }
  .pricing-card table { font-size: 0.82rem; }
  .pricing-card table th,
  .pricing-card table td { padding: 0.5rem 0.3rem; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .section { padding: 4.5rem 0; }
  .cta-banner__btns { flex-direction: column; align-items: center; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
  .form__row { grid-template-columns: 1fr; }
  .process__step { grid-template-columns: 56px 1fr; }
}