/* ==========================================
   Celeste Trading - Premium Stylesheet
   Color Theme: Celeste (#33cccc) + Gold Accent
   Style: Luxurious & Stylish
   ========================================== */

/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --celeste: #33cccc;
  --celeste-dark: #2ab3b3;
  --celeste-light: #e0f7f7;
  --gold: #c9a962;
  --gold-light: #e8d9a8;
  --navy: #0d1b2a;
  --dark: #1b2838;
  --gray: #5a6a7a;
  --light-gray: #f8fafb;
  --white: #ffffff;
  --black: #000000;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans JP', 'Noto Sans SC', sans-serif;
  color: var(--dark);
  line-height: 1.9;
  background-color: var(--white);
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* Typography - Premium Feel */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', 'Noto Sans JP', 'Noto Sans SC', sans-serif;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.05em;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header - Elegant */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  padding: 20px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.03);
  transition: all 0.4s ease;
}

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

.logo {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 4px;
  text-transform: uppercase;
}

.logo span {
  color: var(--celeste);
  font-weight: 300;
}

.logo-img {
  height: 40px;
  width: auto;
  margin-right: 12px;
  vertical-align: middle;
  position: relative;
  top: -2px;
}

.footer-logo-img {
  height: 50px;
  width: auto;
  margin-right: 12px;
  vertical-align: middle;
  position: relative;
  top: -2px;
}

.feature-img {
  width: 100%;
  max-width: 200px;
  height: auto;
  border-radius: 12px;
  object-fit: cover;
}

.service-img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  border-radius: 16px;
}

.process-flow-section {
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

/* Process Flow - 5-step horizontal layout */
.process-flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0;
  max-width: 960px;
  margin: 0 auto;
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 28px 18px;
  border: 2px solid var(--celeste);
  border-radius: 16px;
  background: var(--white);
  min-width: 140px;
  max-width: 160px;
  flex: 1;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(51, 204, 204, 0.15);
}

.process-step-icon {
  width: 44px;
  height: 44px;
  color: var(--celeste);
  margin-bottom: 10px;
}

.process-step-icon svg {
  width: 100%;
  height: 100%;
}

.process-step-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--celeste);
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.process-step-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--dark);
  line-height: 1.4;
}

/* Arrows between steps */
.process-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 32px;
  color: var(--celeste);
}

.process-arrow svg {
  width: 24px;
  height: 24px;
}

.process-arrow-right {
  display: block;
}

.process-arrow-down {
  display: none;
}

/* Responsive: vertical layout on mobile */
@media (max-width: 768px) {
  .process-flow {
    flex-direction: column;
    gap: 0;
  }

  .process-step {
    min-width: 200px;
    max-width: 260px;
    width: 100%;
    flex: none;
  }

  .process-arrow {
    width: auto;
    height: 32px;
    transform: none;
  }

  .process-arrow-right {
    display: none;
  }

  .process-arrow-down {
    display: block;
  }
}

/* Mission Section */
.mission-section {
  position: relative;
  min-height: 600px;
  background: url('../images/mission-bg.png') center center / cover no-repeat;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.mission-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.3) 50%, rgba(0, 0, 0, 0.1) 100%);
}

.mission-section .container {
  position: relative;
  z-index: 1;
}

.mission-content {
  max-width: 750px;
  color: var(--white);
}

.mission-label {
  font-family: 'Montserrat', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 6px;
  color: var(--celeste);
  margin-bottom: 20px;
  padding-top: 80px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--celeste);
  display: inline-block;
}

.mission-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 30px;
  line-height: 1.4;
  color: var(--white);
}

.mission-text p {
  font-size: 1.05rem;
  line-height: 2;
  margin-bottom: 20px;
  color: rgba(255, 255, 255, 0.9);
}

.mission-cta {
  font-weight: 700;
  color: var(--celeste) !important;
  font-size: 1.25rem !important;
  margin-top: 40px;
  text-shadow: 0 0 20px rgba(51, 204, 204, 0.6), 0 0 40px rgba(51, 204, 204, 0.4);
  letter-spacing: 0.05em;
}

@media (max-width: 768px) {
  .mission-section {
    min-height: 500px;
    padding: 60px 0;
  }

  .mission-title {
    font-size: 1.8rem;
  }

  .mission-text p {
    font-size: 0.95rem;
  }
}

.nav {
  display: flex;
  align-items: center;
  gap: 50px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 40px;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--dark);
  position: relative;
  padding: 8px 0;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 1px;
  background: var(--celeste);
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  transform: translateX(-50%);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a:hover {
  color: var(--celeste);
}

.lang-switch {
  display: flex;
  gap: 4px;
  background: transparent;
  border: 1px solid rgba(0, 0, 0, 0.1);
  padding: 4px;
  border-radius: 30px;
}

.lang-switch button {
  padding: 8px 14px;
  border: none;
  background: transparent;
  border-radius: 25px;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: all 0.3s ease;
  color: var(--gray);
}

.lang-switch button.active {
  background: var(--navy);
  color: var(--white);
}

.lang-switch button:hover:not(.active) {
  color: var(--navy);
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 10px;
}

.menu-toggle span {
  width: 24px;
  height: 1.5px;
  background: var(--navy);
  transition: all 0.3s ease;
}

/* Hero Section - Full-screen Slideshow */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 100px;
  position: relative;
  overflow: hidden;
}

.hero-slideshow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
}

.hero-slide.active {
  opacity: 1;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(13, 27, 42, 0.55);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-subtitle {
  display: inline-block;
  background: transparent;
  color: var(--celeste);
  padding: 0;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 30px;
  letter-spacing: 4px;
  text-transform: uppercase;
  border-left: none;
  padding-left: 0;
  border-bottom: 2px solid var(--celeste);
  padding-bottom: 10px;
}

.hero-title {
  font-size: 3.5rem;
  color: var(--white);
  margin-bottom: 30px;
  letter-spacing: 0.02em;
  font-weight: 700;
  line-height: 1.2;
}

.hero-title span {
  color: var(--celeste);
  display: block;
}

.hero-text {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 45px;
  line-height: 2.2;
  font-weight: 400;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.hero-buttons .btn-primary {
  background: var(--celeste);
  color: var(--white);
}

.hero-buttons .btn-primary:hover {
  background: var(--white);
  color: var(--navy);
  box-shadow: 0 15px 40px rgba(255, 255, 255, 0.15);
}

.hero-buttons .btn-outline {
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--white);
}

.hero-buttons .btn-outline:hover {
  background: var(--white);
  color: var(--navy);
}


/* Buttons - Premium */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 40px;
  border-radius: 0;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--celeste);
  transform: translateY(-2px);
  box-shadow: 0 15px 40px rgba(51, 204, 204, 0.3);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--navy);
  color: var(--navy);
}

.btn-outline:hover {
  background: var(--navy);
  color: var(--white);
}

/* Sections - Spacious */
.section {
  padding: 120px 0;
}

.section-gray {
  background: var(--light-gray);
}

.section-header {
  text-align: center;
  margin-bottom: 80px;
}

.section-subtitle {
  color: var(--celeste);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.section-title {
  font-size: 2.8rem;
  color: var(--navy);
  font-weight: 600;
}

/* Features - Elegant Cards */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--white);
  padding: 50px 40px;
  text-align: center;
  transition: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-left: 3px solid var(--celeste);
  position: relative;
  overflow: hidden;
}

.feature-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 0;
  background: linear-gradient(to top, rgba(51, 204, 204, 0.04), transparent);
  transition: height 0.5s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.08);
}

.feature-card:hover::after {
  height: 100%;
}

.feature-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--celeste);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  opacity: 0.25;
}

.feature-divider {
  width: 40px;
  height: 2px;
  background: var(--celeste);
  margin: 0 auto 24px;
}

.feature-title {
  font-size: 1.2rem;
  color: var(--navy);
  margin-bottom: 20px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.feature-text {
  color: var(--gray);
  font-size: 0.9rem;
  line-height: 1.9;
}

/* Stats - Minimal & Bold */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  padding: 80px 0;
}

.stat-item {
  text-align: center;
  position: relative;
}

.stat-item::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  height: 40px;
  width: 1px;
  background: rgba(0, 0, 0, 0.1);
}

.stat-item:last-child::after {
  display: none;
}

.stat-number {
  font-family: 'Montserrat', sans-serif;
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.stat-label {
  color: var(--gray);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* About Page */
.page-hero {
  padding: 120px 0 35px;
  background: linear-gradient(180deg, var(--white) 0%, var(--celeste-light) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 50%;
  right: 5%;
  transform: translateY(-50%);
  width: 300px;
  height: 300px;
  border: 3px solid rgba(51, 204, 204, 0.35);
  border-radius: 50%;
  pointer-events: none;
}

.page-hero::after {
  content: '';
  position: absolute;
  top: 50%;
  right: 10%;
  transform: translateY(-50%);
  width: 180px;
  height: 180px;
  border: 2px solid rgba(51, 204, 204, 0.5);
  border-radius: 50%;
  pointer-events: none;
}

.page-hero h1 {
  font-size: 3.5rem;
  color: var(--navy);
  margin-top: 20px;
  margin-bottom: 20px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.page-hero p {
  color: var(--gray);
  font-size: 1rem;
  letter-spacing: 0.05em;
}

/* About Content */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: center;
}

.about-text h3 {
  font-size: 1.8rem;
  color: var(--navy);
  margin-bottom: 30px;
  font-weight: 600;
  white-space: nowrap;
}

.about-text p {
  color: var(--gray);
  margin-bottom: 25px;
  line-height: 2;
}

.strength-list {
  list-style: none;
  margin-top: 40px;
}

.strength-list li {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  font-weight: 500;
}

.strength-list li::before {
  content: '✓';
  width: 28px;
  height: 28px;
  background: var(--celeste);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
}

/* Services - Premium Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.service-card {
  background: var(--white);
  overflow: hidden;
  transition: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.1);
}

.service-image {
  background: linear-gradient(135deg, var(--celeste-light) 0%, var(--celeste) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  overflow: hidden;
}

.service-image img {
  width: 100%;
  height: auto;
}

.service-content {
  padding: 35px;
}

.service-content h3 {
  font-size: 1.3rem;
  color: var(--navy);
  margin-bottom: 15px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.service-content p {
  color: var(--gray);
  font-size: 0.9rem;
  line-height: 1.9;
}

/* Contact - Clean */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

.contact-info h3 {
  font-size: 2rem;
  color: var(--navy);
  margin-bottom: 25px;
  font-weight: 600;
}

.contact-info p {
  color: var(--gray);
  margin-bottom: 40px;
  line-height: 2;
}

.contact-details {
  list-style: none;
}

.contact-details li {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  color: var(--dark);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.contact-details li div {
  white-space: nowrap;
}

.contact-details li > span {
  width: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--celeste);
}

.contact-icon svg {
  width: 24px;
  height: 24px;
}

.contact-form {
  background: var(--white);
  padding: 50px;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.form-group {
  margin-bottom: 30px;
}

.form-group label {
  display: block;
  margin-bottom: 10px;
  font-weight: 500;
  color: var(--dark);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 18px 20px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s ease;
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--celeste);
}

.form-group textarea {
  min-height: 160px;
  resize: vertical;
}

/* Footer - Sophisticated */
.footer {
  background: var(--navy);
  color: var(--white);
  padding: 80px 0 40px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 80px;
  margin-bottom: 60px;
}

.footer-logo {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 25px;
  letter-spacing: 3px;
}

.footer-text {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  line-height: 2;
}

.footer-title {
  font-size: 0.9rem;
  margin-bottom: 30px;
  color: var(--white);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 600;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 15px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--celeste);
}

.footer-bottom {
  text-align: center;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}

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

  .hero-content {
    max-width: 600px;
    margin: 0 auto;
  }

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

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

  .stat-item::after {
    display: none;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 60px;
  }

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

  .contact-wrapper {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 50px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 30px;
    gap: 0;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  }

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

  .nav-links li {
    padding: 18px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  }

  .menu-toggle {
    display: flex;
  }

  .hero-title {
    font-size: 2.4rem;
  }

  .section {
    padding: 80px 0;
  }

  .section-title {
    font-size: 2rem;
  }

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

  .stats {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

  .stat-number {
    font-size: 2.5rem;
  }

  .page-hero h1 {
    font-size: 2.5rem;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.8s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

/* Utility Classes */
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.mt-40 { margin-top: 40px; }
.mb-40 { margin-bottom: 40px; }