/* ═══════════════════════════════════════════════════════════════════════════
   PortHill — Computer Systems Design & Related Services
   Professional Stylesheet
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── 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: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Oxygen, Ubuntu, Cantarell, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #1E293B;
  background: #FFFFFF;
}

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

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

ul {
  list-style: none;
}

/* ═══════════════════════════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════════════════════════ */

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #0B1120;
  border-bottom: 1px solid #1E2A40;
  transition: box-shadow 0.3s ease;
}

.header.scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.3px;
}

.logo-mark {
  width: 38px;
  height: 38px;
  background: #0066FF;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #FFFFFF;
  flex-shrink: 0;
}

/* ── Navigation ─────────────────────────────────────────────────────────── */

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav a {
  color: #94A3B8;
  font-size: 15px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 6px;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav a:hover,
.nav a.active {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.06);
}

/* ── Hamburger ──────────────────────────────────────────────────────────── */

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #FFFFFF;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

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

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

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

/* ═══════════════════════════════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════════════════════════════ */

.hero {
  position: relative;
  background: #0B1120;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(0, 102, 255, 0.12) 0%,
    rgba(0, 102, 255, 0.02) 50%,
    rgba(11, 17, 32, 0.6) 100%
  );
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
}

.hero-content > div:first-child {
  flex: 0 0 560px;
  max-width: 560px;
}

.hero-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: #0066FF;
  background: rgba(0, 102, 255, 0.1);
  border: 1px solid rgba(0, 102, 255, 0.25);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.12;
  color: #FFFFFF;
  letter-spacing: -1.2px;
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 18px;
  line-height: 1.7;
  color: #94A3B8;
  margin-bottom: 36px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-visual {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual img,
.hero-visual .hero-graphic {
  max-width: 520px;
  width: 100%;
}

/* ── Buttons ────────────────────────────────────────────────────────────── */

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: #FFFFFF;
  background: #0066FF;
  border: none;
  padding: 14px 28px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
}

.btn-primary:hover {
  background: #0052CC;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0, 102, 255, 0.35);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: #FFFFFF;
  background: transparent;
  border: 1.5px solid #334155;
  padding: 14px 28px;
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.btn-outline:hover {
  border-color: #0066FF;
  background: rgba(0, 102, 255, 0.08);
}

/* ═══════════════════════════════════════════════════════════════════════════
   SECTION HEADER (shared)
   ═══════════════════════════════════════════════════════════════════════════ */

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: #0066FF;
  background: rgba(0, 102, 255, 0.08);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 38px;
  font-weight: 800;
  color: #0B1120;
  letter-spacing: -0.6px;
  line-height: 1.2;
  margin-bottom: 14px;
}

.section-sub {
  font-size: 17px;
  color: #64748B;
  line-height: 1.65;
}

/* ═══════════════════════════════════════════════════════════════════════════
   SERVICES
   ═══════════════════════════════════════════════════════════════════════════ */

.services {
  padding: 100px 24px;
  background: #F4F6FA;
}

.services-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  padding: 36px 30px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
  border-color: #0066FF;
}

.service-icon {
  width: 52px;
  height: 52px;
  background: rgba(0, 102, 255, 0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  font-size: 24px;
  color: #0066FF;
}

.service-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: #0B1120;
  margin-bottom: 10px;
}

.service-card p {
  font-size: 15px;
  color: #64748B;
  line-height: 1.65;
}

/* ═══════════════════════════════════════════════════════════════════════════
   ABOUT
   ═══════════════════════════════════════════════════════════════════════════ */

.about {
  padding: 100px 24px;
  background: #FFFFFF;
}

.about-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.about-text h2 {
  font-size: 38px;
  font-weight: 800;
  color: #0B1120;
  letter-spacing: -0.6px;
  line-height: 1.2;
  margin-bottom: 18px;
}

.about-text > p {
  font-size: 16px;
  color: #64748B;
  line-height: 1.7;
  margin-bottom: 28px;
}

.about-points {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-point {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.point-bullet {
  width: 28px;
  height: 28px;
  background: #0066FF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 3px;
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 700;
}

.about-point p {
  font-size: 15px;
  color: #334155;
  line-height: 1.6;
}

.about-point strong {
  color: #0B1120;
}

.about-visual {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.about-card {
  background: #0B1120;
  border-radius: 16px;
  padding: 48px 40px;
  text-align: center;
  border: 1px solid #1E2A40;
}

.about-stat-large {
  font-size: 56px;
  font-weight: 800;
  color: #0066FF;
  letter-spacing: -1.5px;
  line-height: 1;
  margin-bottom: 8px;
}

.about-card p {
  font-size: 15px;
  color: #94A3B8;
  line-height: 1.5;
}

/* ═══════════════════════════════════════════════════════════════════════════
   PROCESS
   ═══════════════════════════════════════════════════════════════════════════ */

.process {
  padding: 100px 24px;
  background: #F4F6FA;
}

.process-timeline {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  position: relative;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 60px;
  right: 60px;
  height: 2px;
  background: #CBD5E1;
  z-index: 1;
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 2;
  flex: 1;
  max-width: 200px;
}

.step-number {
  width: 64px;
  height: 64px;
  background: #FFFFFF;
  border: 3px solid #0066FF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 800;
  color: #0066FF;
  margin-bottom: 20px;
  transition: background 0.25s ease, color 0.25s ease;
}

.process-step:hover .step-number {
  background: #0066FF;
  color: #FFFFFF;
}

.process-step h4 {
  font-size: 17px;
  font-weight: 700;
  color: #0B1120;
  margin-bottom: 6px;
}

.process-step p {
  font-size: 14px;
  color: #64748B;
  line-height: 1.55;
}

/* ═══════════════════════════════════════════════════════════════════════════
   INDUSTRIES
   ═══════════════════════════════════════════════════════════════════════════ */

.industries {
  padding: 100px 24px;
  background: #FFFFFF;
}

.industries-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.industry-item {
  background: #F4F6FA;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  padding: 32px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.industry-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.06);
  border-color: #0066FF;
}

.industry-item .icon,
.industry-item svg,
.industry-item img {
  width: 44px;
  height: 44px;
  color: #0066FF;
  font-size: 36px;
}

.industry-item span,
.industry-item label {
  font-size: 15px;
  font-weight: 600;
  color: #0B1120;
}

/* ═══════════════════════════════════════════════════════════════════════════
   STATS
   ═══════════════════════════════════════════════════════════════════════════ */

.stats {
  padding: 80px 24px;
  background: #0B1120;
}

.stats-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-block {
  text-align: center;
}

.stat-number {
  font-size: 44px;
  font-weight: 800;
  color: #0066FF;
  letter-spacing: -1px;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-block p {
  font-size: 14px;
  color: #94A3B8;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   TESTIMONIALS
   ═══════════════════════════════════════════════════════════════════════════ */

.testimonials {
  padding: 100px 24px;
  background: #F4F6FA;
}

.testimonials-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.testimonial-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.07);
}

.testimonial-quote {
  font-size: 15px;
  color: #334155;
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 20px;
  position: relative;
  padding-top: 24px;
}

.testimonial-quote::before {
  content: '\201C';
  position: absolute;
  top: -8px;
  left: 0;
  font-size: 48px;
  color: #0066FF;
  line-height: 1;
  font-style: normal;
  font-weight: 800;
}

.testimonial-author {
  font-size: 14px;
  font-weight: 700;
  color: #0B1120;
}

.testimonial-author span {
  display: block;
  font-size: 13px;
  font-weight: 400;
  color: #64748B;
  margin-top: 2px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════════════════════════════════════════ */

.contact {
  padding: 100px 24px;
  background: #FFFFFF;
}

.contact-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}

.contact-info h2 {
  font-size: 34px;
  font-weight: 800;
  color: #0B1120;
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin-bottom: 14px;
}

.contact-info > p {
  font-size: 16px;
  color: #64748B;
  line-height: 1.65;
  margin-bottom: 32px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 24px;
}

.contact-icon {
  width: 44px;
  height: 44px;
  background: rgba(0, 102, 255, 0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 20px;
  color: #0066FF;
}

.contact-item strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: #0B1120;
  margin-bottom: 2px;
}

.contact-item span,
.contact-item p {
  font-size: 15px;
  color: #64748B;
  line-height: 1.5;
}

.contact-form-wrapper {
  background: #F4F6FA;
  border-radius: 16px;
  padding: 40px 36px;
  border: 1px solid #E2E8F0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 14px 16px;
  font-size: 15px;
  font-family: inherit;
  color: #0B1120;
  background: #FFFFFF;
  border: 1.5px solid #E2E8F0;
  border-radius: 8px;
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: #0066FF;
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.12);
}

.contact-form textarea {
  resize: vertical;
  min-height: 130px;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #94A3B8;
}

.contact-form button[type='submit'],
.contact-form .btn-primary {
  align-self: flex-start;
  margin-top: 4px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════════════════ */

.footer {
  background: #0B1120;
  padding: 72px 24px 0;
  color: #94A3B8;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
  letter-spacing: 0.3px;
}

.footer-col p,
.footer-col li {
  font-size: 14px;
  color: #94A3B8;
  line-height: 1.7;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 14px;
  color: #94A3B8;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: #FFFFFF;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 14px;
}

.footer-logo .logo-mark {
  width: 34px;
  height: 34px;
  font-size: 18px;
}

.footer-bar {
  border-top: 1px solid #1E2A40;
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-bar p,
.footer-bar span {
  font-size: 13px;
  color: #64748B;
  margin: 0;
}

.footer-bar .footer-legal {
  display: flex;
  align-items: center;
  gap: 24px;
}

.footer-bar .footer-legal a {
  font-size: 13px;
  color: #94A3B8;
  text-decoration: none;
  transition: color .2s;
}

.footer-bar .footer-legal a:hover {
  color: #0066FF;
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Tablet (≤1024px) ───────────────────────────────────────────────────── */

@media (max-width: 1024px) {
  .hero-content {
    flex-direction: column;
    text-align: center;
    padding: 80px 24px;
    gap: 48px;
  }

  .hero-content > div:first-child {
    flex: 0 0 auto;
    max-width: 640px;
  }

  .hero-desc {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero h1 {
    font-size: 40px;
  }

  .hero-visual {
    max-width: 420px;
    margin: 0 auto;
  }

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

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

  .about-text {
    text-align: center;
  }

  .about-point {
    justify-content: center;
  }

  .about-visual {
    max-width: 480px;
    margin: 0 auto;
  }

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

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

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

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

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

/* ── Mobile (≤768px) ────────────────────────────────────────────────────── */

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #0B1120;
    flex-direction: column;
    padding: 16px 24px 24px;
    gap: 4px;
    border-bottom: 1px solid #1E2A40;
    display: none;
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    width: 100%;
    padding: 12px 16px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero-desc {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn-primary,
  .btn-outline {
    width: 100%;
  }

  .section-title {
    font-size: 30px;
  }

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

  .process-timeline {
    flex-direction: column;
    align-items: center;
    gap: 32px;
  }

  .process-timeline::before {
    display: none;
  }

  .process-step {
    flex-direction: row;
    text-align: left;
    gap: 16px;
    max-width: 320px;
    width: 100%;
  }

  .step-number {
    margin-bottom: 0;
    flex-shrink: 0;
  }

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

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .footer-bar {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
  .footer-bar .footer-legal {
    gap: 20px;
  }
}

/* ── Small Mobile (≤480px) ──────────────────────────────────────────────── */

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

  .hero {
    min-height: 500px;
  }

  .hero-content {
    padding: 60px 16px;
  }

  .hero h1 {
    font-size: 28px;
  }

  .hero-tag {
    font-size: 11px;
    padding: 5px 12px;
  }

  .services,
  .about,
  .process,
  .industries,
  .testimonials,
  .contact {
    padding: 64px 16px;
  }

  .section-title {
    font-size: 26px;
  }

  .industries-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .industry-item {
    padding: 24px 14px;
  }

  .stats-inner {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .stat-number {
    font-size: 36px;
  }

  .contact-form-wrapper {
    padding: 28px 20px;
  }

  .about-stat-large {
    font-size: 42px;
  }
}