/* ==============================================================================
   KUNE TECH - PRODUCTION CSS DESIGN SYSTEM
   Theme: Elegant Cyber-Navy & Dynamic Cyan/Teal
   ============================================================================== */

:root {
  --color-bg-dark: #0F172A;
  --color-bg-card: #1E293B;
  --color-bg-light: #F8FAFC;
  --color-primary: #06B6D4;
  --color-primary-hover: #0891B2;
  --color-accent: #0D9488;
  --color-text-main: #F1F5F9;
  --color-text-muted: #94A3B8;
  --color-text-dark: #0F172A;
  --color-border: #334155;
  --font-family: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max-width: 1200px;
}

/* RESET & BASE */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-bg-dark);
  color: var(--color-text-main);
  font-family: var(--font-family);
  -webkit-font-smoothing: antialiased;
}

body {
  line-height: 1.6;
}

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

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

a:hover {
  color: var(--color-accent);
}

ul {
  list-style: none;
}

/* UTILITY CLASSES */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.max-w-700 {
  max-width: 700px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

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

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

.text-gradient {
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.accent-text {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.5rem;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  transition: var(--transition-smooth);
  cursor: pointer;
  border: 1px solid transparent;
  font-size: 1rem;
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-bg-dark);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  color: var(--color-bg-dark);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-main);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--color-primary);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-text-main);
  border-color: var(--color-border);
}

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

.btn-block {
  width: 100%;
}

/* LEGAL TOP STRIP */
.legal-strip {
  background-color: #020617;
  border-bottom: 1px solid var(--color-border);
  padding: 0.5rem 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* MAIN HEADER */
.main-header {
  background-color: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 0;
}

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

.logo img {
  display: block;
}

.main-nav ul {
  display: none;
  gap: 1.5rem;
}

@media (min-width: 1024px) {
  .main-nav ul {
    display: flex;
  }
}

.main-nav a {
  color: var(--color-text-main);
  font-weight: 500;
  font-size: 0.95rem;
}

.main-nav a:hover {
  color: var(--color-primary);
}

/* HERO SECTION */
.hero-section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--color-border);
  background: radial-gradient(circle at 10% 20%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
}

.hero-content h1 {
  font-size: 2.5rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  font-weight: 900;
}

@media (min-width: 768px) {
  .hero-content h1 {
    font-size: 3.2rem;
  }
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.trust-strip {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
}

@media (min-width: 480px) {
  .trust-strip {
    flex-direction: row;
  }
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.trust-icon {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-primary);
}

.hero-image-wrapper {
  position: relative;
}

.hero-img {
  border-radius: 12px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--color-border);
}

.hero-overlay-card {
  position: absolute;
  bottom: -20px;
  left: 20px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-primary);
  border-radius: 12px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  max-width: 250px;
}

.card-num {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--color-primary);
}

.card-text {
  font-size: 0.8rem;
  color: var(--color-text-main);
  font-weight: 500;
}

/* SECTION GLOBAL HEADERS */
.section-header {
  margin-bottom: 3.5rem;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .section-header h2 {
    font-size: 2.5rem;
  }
}

.section-desc {
  color: var(--color-text-muted);
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.1rem;
}

/* CARDS COMMON */
.card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2rem;
  transition: var(--transition-smooth);
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--color-primary);
}

/* BENEFITS SECTION */
.benefits-section {
  padding: 6rem 0;
  background-color: #0b0f19;
}

.icon-wrap {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 10px;
  background-color: rgba(6, 182, 212, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--color-primary);
}

.benefit-icon {
  width: 2rem;
  height: 2rem;
}

.benefit-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--color-text-main);
}

.benefit-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* SERVICES SECTION (DARK) */
.services-section {
  padding: 6rem 0;
  background-color: var(--color-bg-dark);
}

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

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.service-item {
  overflow: hidden;
  padding: 0;
}

.service-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-bottom: 1px solid var(--color-border);
}

.service-body {
  padding: 2rem;
}

.service-tag {
  background-color: rgba(6, 182, 212, 0.1);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.service-body h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.service-body p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* PROCESS SECTION */
.process-section {
  padding: 6rem 0;
  background-color: #0b0f19;
}

.process-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .process-steps {
    grid-template-columns: repeat(4, 1fr);
  }
}

.step-card {
  position: relative;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2rem;
}

.step-num {
  font-size: 3rem;
  font-weight: 900;
  color: var(--color-primary);
  opacity: 0.2;
  position: absolute;
  top: 1rem;
  right: 1.5rem;
}

.step-card h3 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  padding-top: 1rem;
}

.step-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* TESTIMONIALS SECTION */
.testimonials-section {
  padding: 6rem 0;
  background-color: var(--color-bg-dark);
}

.testimonial-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.rating {
  color: #FBBF24;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.quote {
  font-style: italic;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-main);
  margin-bottom: 1.5rem;
}

.client-info strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.client-meta {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ABOUT OPERATOR SECTION */
.about-section {
  padding: 6rem 0;
  background-color: #0b0f19;
  border-bottom: 1px solid var(--color-border);
}

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.operator-meta {
  margin-top: 2rem;
  display: grid;
  gap: 0.75rem;
  background-color: var(--color-bg-card);
  padding: 1.5rem;
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.meta-item {
  font-size: 0.9rem;
}

.about-img {
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

/* CONTACT / LEAD FORM SECTION */
.contact-section {
  padding: 6rem 0;
  background-color: var(--color-bg-dark);
}

.form-container {
  background-color: var(--color-bg-card);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 480px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.required {
  color: #EF4444;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: #0F172A;
  border: 1px solid var(--color-border);
  color: var(--color-text-main);
  border-radius: 6px;
  font-size: 1rem;
  transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.25);
}

.phone-input-wrapper {
  display: flex;
  align-items: center;
}

.phone-prefix {
  background-color: #0F172A;
  border: 1px solid var(--color-border);
  border-right: none;
  padding: 0.75rem 1rem;
  border-radius: 6px 0 0 6px;
  color: var(--color-text-muted);
  font-weight: 700;
}

.phone-input-wrapper input {
  border-radius: 0 6px 6px 0 !important;
}

.form-tip {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: block;
  margin-top: 0.25rem;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--color-text-muted);
}

.checkbox-group input[type="checkbox"] {
  width: 1.2rem;
  height: 1.2rem;
  margin-top: 0.15rem;
  accent-color: var(--color-primary);
}

/* SUCCESS STATE */
.form-success-state {
  text-align: center;
  padding: 3rem 1.5rem;
}

.success-icon {
  width: 4rem;
  height: 4rem;
  color: #10B981;
  margin-bottom: 1.5rem;
}

.form-success-state h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.form-success-state p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.form-success-sub {
  font-size: 0.85rem;
}

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  padding: 1.5rem;
  z-index: 10000;
  max-width: 450px;
}

.cookie-content p {
  font-size: 0.85rem;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.cookie-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* BACK TO TOP */
.back-to-top {
  position: fixed;
  bottom: 20px;
  left: 20px;
  background-color: var(--color-primary);
  color: var(--color-bg-dark);
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  z-index: 999;
  transition: var(--transition-smooth);
  opacity: 0;
  visibility: hidden;
  box-shadow: 0 10px 20px rgba(0,0,0,0.4);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-5px);
  background-color: var(--color-primary-hover);
}

/* FOOTER styles */
.main-footer {
  background-color: #020617;
  border-top: 1px solid var(--color-border);
  padding: 5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 2fr;
  }
}

.footer-logo {
  margin-bottom: 1.5rem;
}

.footer-about-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.footer-col-links h4,
.footer-col-legal h4,
.footer-col-contact h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--color-text-main);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-col-links ul,
.footer-col-legal ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-col-links a,
.footer-col-legal a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer-col-links a:hover,
.footer-col-legal a:hover {
  color: var(--color-primary);
}

.footer-col-contact p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* LEGAL PAGES SPECIFIC */
.legal-page-body {
  background-color: var(--color-bg-dark);
  color: var(--color-text-main);
  padding: 5rem 0;
}

.legal-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 3rem;
}

.legal-card h1 {
  font-size: 2.2rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1rem;
}

.legal-card h2 {
  font-size: 1.4rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.legal-card p, .legal-card li {
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.legal-card ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}