/* =========================================
   CoreScale — Apple-inspired stylesheet
   ========================================= */

:root {
  --color-bg: #000000;
  --color-bg-alt: #f5f5f7;
  --color-bg-card: #ffffff;
  --color-text-primary: #1d1d1f;
  --color-text-secondary: #6e6e73;
  --color-text-on-dark: #f5f5f7;
  --color-text-dim: #a1a1a6;
  --color-accent: #0071e3;
  --color-border: #d2d2d7;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  --max-width: 1100px;
  --nav-height: 52px;
  --radius: 18px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  color: var(--color-text-primary);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---- Nav ---- */

#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  transition: background var(--transition);
}

#nav.light {
  background: rgba(245, 245, 247, 0.82);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo-img {
  height: 28px;
  width: auto;
  object-fit: contain;
}

.nav-logo span {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text-on-dark);
  transition: color var(--transition);
}

#nav.light .nav-logo span { color: var(--color-text-primary); }

.hero-logo {
  width: 200px;
  height: auto;
  margin-bottom: 16px;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  color: rgba(245, 245, 247, 0.85);
  text-decoration: none;
  transition: color var(--transition);
}

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

#nav.light .nav-links a { color: var(--color-text-secondary); }
#nav.light .nav-links a:hover { color: var(--color-text-primary); }

.nav-cta {
  background: var(--color-accent);
  color: #ffffff !important;
  padding: 7px 16px;
  border-radius: 980px;
  font-weight: 500;
  transition: opacity var(--transition) !important;
}

.nav-cta:hover { opacity: 0.85; }

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

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-on-dark);
  border-radius: 2px;
  transition: var(--transition);
}

#nav.light .nav-toggle span { background: var(--color-text-primary); }

/* ---- Buttons ---- */

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 980px;
  font-size: 17px;
  font-weight: 400;
  text-decoration: none;
  transition: opacity var(--transition), background var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-accent);
  color: #ffffff;
}

.btn-primary:hover { opacity: 0.85; }

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
}

.btn-secondary:hover { background: rgba(0, 113, 227, 0.07); }

/* ---- Hero ---- */

#hero {
  min-height: 100vh;
  background: #0a0f1a;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + 48px) 24px 80px;
  position: relative;
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0, 113, 227, 0.12) 0%, transparent 70%);
  pointer-events: none;
}


.hero-content {
  position: relative;
  max-width: 760px;
}

.hero-eyebrow {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

#hero h1 {
  font-size: clamp(40px, 7vw, 80px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: #f5f5f7;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: clamp(17px, 2.5vw, 21px);
  color: var(--color-text-dim);
  line-height: 1.55;
  max-width: 560px;
  margin: 0 auto 40px;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
}

.hero-scroll-hint span {
  display: block;
  width: 1.5px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, rgba(245, 245, 247, 0.35));
  margin: 0 auto;
  animation: scrollHint 2s ease-in-out infinite;
}

@keyframes scrollHint {
  0%, 100% { opacity: 0; transform: scaleY(0.6) translateY(-8px); }
  50% { opacity: 1; transform: scaleY(1) translateY(0); }
}

/* ---- Shared section styles ---- */

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-eyebrow {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 14px;
}

/* ---- Services ---- */

#services {
  background: #0a0f1a;
  padding: 100px 0 120px;
  text-align: center;
}

#services h2 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.07;
  color: #f5f5f7;
  margin-bottom: 64px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius);
  padding: 40px 32px 44px;
  text-align: left;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: border-color var(--transition), transform var(--transition);
}

.service-card:hover {
  border-color: rgba(255, 255, 255, 0.16);
  transform: translateY(-3px);
}

.service-icon {
  color: var(--color-accent);
  margin-bottom: 24px;
}

.service-card h3 {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: #f5f5f7;
  margin-bottom: 14px;
}

.service-card > p {
  font-size: 15px;
  color: var(--color-text-dim);
  line-height: 1.6;
  margin-bottom: 24px;
}

.service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.service-list li {
  font-size: 14px;
  color: var(--color-text-dim);
  padding-left: 18px;
  position: relative;
}

.service-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.5;
}

/* ---- Work ---- */

#work {
  background: #0a0f1a;
  padding: 100px 0 120px;
}

#work h2 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.07;
  color: #f5f5f7;
  margin-bottom: 64px;
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.work-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 40px 36px 44px;
  transition: border-color var(--transition);
}

.work-card:hover {
  border-color: rgba(255, 255, 255, 0.16);
}

.work-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.work-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 980px;
}

.work-tag--atlassian {
  background: rgba(0, 82, 204, 0.2);
  color: #5b9cf6;
}

.work-tag--cloud {
  background: rgba(255, 149, 0, 0.15);
  color: #ff9f3a;
}

.work-client {
  font-size: 13px;
  color: var(--color-text-dim);
}

.work-card h3 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: #f5f5f7;
  margin-bottom: 20px;
  line-height: 1.25;
}

.work-challenge, .work-outcome {
  font-size: 15px;
  color: var(--color-text-dim);
  line-height: 1.65;
  margin-bottom: 16px;
}

.work-challenge span, .work-outcome span {
  color: rgba(245, 245, 247, 0.55);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 6px;
}

.work-results {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.work-results li {
  font-size: 14px;
  color: var(--color-text-dim);
  padding-left: 18px;
  position: relative;
}

.work-results li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.6;
}

@media (max-width: 900px) {
  .work-grid {
    grid-template-columns: 1fr;
  }
}

/* ---- About ---- */

#about {
  background: #0a0f1a;
  padding: 120px 0;
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-text .section-eyebrow { color: var(--color-accent); }

.about-text h2 {
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.08;
  color: #f5f5f7;
  margin-bottom: 28px;
}

.about-text p {
  font-size: 17px;
  color: var(--color-text-dim);
  line-height: 1.65;
  margin-bottom: 20px;
}

.about-text .btn-secondary {
  color: var(--color-accent);
  border-color: rgba(0, 113, 227, 0.6);
  margin-top: 8px;
}

.about-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.about-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.about-card:first-child {
  grid-column: 1 / -1;
}

.about-stat {
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #f5f5f7;
  line-height: 1;
}

.about-stat-label {
  font-size: 14px;
  color: var(--color-text-dim);
}

/* ---- Contact ---- */

#contact {
  background: #0a0f1a;
  padding: 120px 0 140px;
  text-align: center;
}

.contact-inner h2 {
  font-size: clamp(40px, 7vw, 80px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: #f5f5f7;
  margin-bottom: 20px;
}

.contact-sub {
  font-size: 19px;
  color: var(--color-text-dim);
  max-width: 480px;
  margin: 0 auto 48px;
  line-height: 1.55;
}

#contact-form {
  max-width: 640px;
  margin: 0 auto;
  text-align: left;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: rgba(245, 245, 247, 0.6);
  letter-spacing: 0.02em;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 13px 16px;
  font-family: var(--font);
  font-size: 15px;
  color: #f5f5f7;
  outline: none;
  transition: border-color var(--transition), background var(--transition);
  -webkit-appearance: none;
  appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23a1a1a6' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  cursor: pointer;
}

.form-group select option {
  background: #1a1f2e;
  color: #f5f5f7;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(161, 161, 166, 0.6);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  background: rgba(0, 113, 227, 0.06);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.55;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.form-privacy {
  font-size: 13px;
  color: rgba(161, 161, 166, 0.7);
}

.form-success,
.form-error {
  display: none;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding: 14px 18px;
  border-radius: 10px;
  font-size: 15px;
}

.form-success:not([hidden]),
.form-error:not([hidden]) {
  display: flex;
}

.form-success {
  background: rgba(52, 199, 89, 0.1);
  border: 1px solid rgba(52, 199, 89, 0.25);
  color: #34c759;
}


@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
  .form-footer { flex-direction: column; align-items: flex-start; }
}

/* ---- Footer ---- */

footer {
  background: #0a0f1a;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  padding: 24px 0;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-self: start;
}

.footer-logo-img {
  height: 24px;
  width: auto;
  object-fit: contain;
}

.footer-logo span {
  font-size: 14px;
  font-weight: 600;
  color: #f5f5f7;
}

.footer-copy {
  font-size: 12px;
  color: var(--color-text-dim);
  text-align: center;
  justify-self: center;
}

.footer-tagline {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-dim);
  letter-spacing: 0.03em;
  justify-self: end;
  text-align: right;
}

.footer-legal {
  max-width: var(--max-width);
  margin: 8px auto 0;
  padding: 8px 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 11px;
  color: rgba(161, 161, 166, 0.45);
  text-align: center;
}

/* ---- Reveal animation ---- */

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s cubic-bezier(0.4, 0, 0.2, 1), transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-reveal].revealed {
  opacity: 1;
  transform: none;
}

[data-reveal]:nth-child(2) { transition-delay: 0.1s; }
[data-reveal]:nth-child(3) { transition-delay: 0.2s; }

/* ---- Responsive ---- */

@media (max-width: 900px) {
  .services-grid {
    grid-template-columns: 1fr;
    max-width: 540px;
    margin: 0 auto;
  }

  .about-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-visual {
    display: none;
  }
}

@media (max-width: 600px) {
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    gap: 0;
    padding: 12px 0 24px;
  }

  .nav-links.open { display: flex; }

  .nav-links li { width: 100%; }

  .nav-links a {
    display: block;
    padding: 14px 24px;
    font-size: 16px;
  }

  .nav-cta {
    margin: 8px 24px 0;
    text-align: center;
    border-radius: var(--radius);
  }

  .nav-toggle { display: flex; }

  .footer-inner { justify-content: center; flex-direction: column; text-align: center; }
}