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

:root {
  --color-1: #AFDCE8;
  --color-2: #CAE9F5;
  --color-3: #F0FAFF;
  --color-4: #ADD8E4;
  --color-5: #86C8D8;
  --color-dark: #1a3a44;
  --color-text: #2c3e50;
  --color-text-light: #5a7d8a;
  --color-white: #ffffff;
  --color-bg: #fafeff;
  --font-main: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 2px 8px rgba(134, 200, 216, 0.15);
  --shadow-md: 0 4px 20px rgba(134, 200, 216, 0.2);
  --shadow-lg: 0 8px 40px rgba(134, 200, 216, 0.25);
  --radius: 12px;
}

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

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: var(--color-5);
  text-decoration: none;
  transition: color var(--transition);
}

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

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.hidden {
  display: none !important;
}

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 254, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(134, 200, 216, 0.15);
  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(250, 254, 255, 0.95);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-dark);
  text-decoration: none;
  transition: transform var(--transition);
}

.nav-logo:hover {
  transform: scale(1.02);
  color: var(--color-dark);
}

.nav-logo img {
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-logo:hover img {
  transform: rotate(10deg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  padding: 8px 16px;
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: 8px;
  transition: background var(--transition), color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(134, 200, 216, 0.15);
  color: var(--color-dark);
}

.lang-btn {
  background: none;
  border: 2px solid var(--color-4);
  padding: 6px 14px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  transition: all var(--transition);
  white-space: nowrap;
}

.lang-btn:hover {
  background: var(--color-4);
  color: var(--color-white);
}

.lang-active {
  color: var(--color-dark);
  font-weight: 700;
}

.lang-inactive {
  color: var(--color-text-light);
  font-weight: 400;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 72px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-3) 0%, var(--color-2) 30%, var(--color-1) 60%, var(--color-5) 100%);
  opacity: 0.4;
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse, rgba(134, 200, 216, 0.3) 0%, transparent 70%);
  animation: float 20s ease-in-out infinite;
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 60%;
  height: 120%;
  background: radial-gradient(ellipse, rgba(202, 233, 245, 0.4) 0%, transparent 70%);
  animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(30px, -20px) rotate(2deg); }
  66% { transform: translate(-20px, 15px) rotate(-1deg); }
}

/* Hero logo background */
.hero-logo-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-logo-svg {
  width: 750px;
  height: 750px;
  animation: logoFloat 10s ease-in-out infinite;
  filter: drop-shadow(0 0 80px rgba(74, 158, 181, 0.25));
}

.logo-part {
  transform-origin: 100px 100px;
}

.logo-top {
  animation: logoTopMove 5s ease-in-out infinite;
}

.logo-body {
  animation: logoBodyMove 6s ease-in-out infinite;
}

.logo-diamond {
  animation: logoDiamondMove 3.5s ease-in-out infinite;
}

.logo-ring-1 {
  animation: logoRingSpin1 12s linear infinite;
  transform-origin: 100px 95px;
}

.logo-ring-2 {
  animation: logoRingSpin2 18s linear infinite reverse;
  transform-origin: 100px 95px;
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-25px) scale(1.04); }
}

@keyframes logoTopMove {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes logoBodyMove {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(5px) scale(1.03); }
}

@keyframes logoDiamondMove {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.5; }
  50% { transform: translateY(8px) scale(1.15); opacity: 0.75; }
}

@keyframes logoRingSpin1 {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes logoRingSpin2 {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@media (max-width: 768px) {
  .hero-logo-svg {
    width: 450px;
    height: 450px;
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--color-text-light);
  margin-bottom: 36px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Page Header ===== */
.page-header {
  position: relative;
  padding: 140px 0 60px;
  text-align: center;
  overflow: hidden;
}

.page-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.page-header > .container > p {
  font-size: 1.15rem;
  color: var(--color-text-light);
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-5);
  color: var(--color-white);
  border-color: var(--color-5);
}

.btn-primary:hover {
  background: var(--color-dark);
  border-color: var(--color-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
  background: var(--color-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-full {
  width: 100%;
  text-align: center;
}

/* ===== Sections ===== */
.section {
  padding: 100px 0;
}

.section-accent {
  background: linear-gradient(135deg, var(--color-3) 0%, rgba(202, 233, 245, 0.3) 100%);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 16px;
}

.section-line {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-5), var(--color-1));
  margin: 0 auto;
  border-radius: 2px;
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  font-size: 1.05rem;
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-stats {
  display: grid;
  gap: 20px;
}

.stat-card {
  background: var(--color-white);
  padding: 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid rgba(134, 200, 216, 0.1);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  width: 40px;
  height: 40px;
  color: var(--color-5);
  margin-bottom: 12px;
}

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

.stat-card h3 {
  font-size: 1.1rem;
  color: var(--color-dark);
  margin-bottom: 4px;
}

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

/* ===== Services ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--color-white);
  padding: 36px 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(134, 200, 216, 0.1);
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  width: 48px;
  height: 48px;
  color: var(--color-5);
  margin-bottom: 20px;
}

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

.service-card h3 {
  font-size: 1.2rem;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-features li {
  font-size: 0.9rem;
  color: var(--color-text);
  padding-left: 20px;
  position: relative;
}

.service-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--color-5);
  border-radius: 50%;
  opacity: 0.6;
}

/* ===== Process ===== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.process-step {
  text-align: center;
  padding: 24px;
}

.process-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-5);
  opacity: 0.4;
  margin-bottom: 12px;
  line-height: 1;
}

.process-step h3 {
  font-size: 1.1rem;
  color: var(--color-dark);
  margin-bottom: 8px;
}

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

/* ===== CTA ===== */
.cta-section {
  text-align: center;
  max-width: 600px;
}

.cta-section h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-dark);
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--color-text-light);
  margin-bottom: 28px;
  font-size: 1.05rem;
}

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info h2 {
  font-size: 1.75rem;
  color: var(--color-dark);
  margin-bottom: 16px;
}

.contact-info > p {
  color: var(--color-text-light);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 36px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-item-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  color: var(--color-5);
}

.contact-item-icon svg {
  width: 100%;
  height: 100%;
}

.contact-item h4 {
  font-size: 0.95rem;
  color: var(--color-dark);
  margin-bottom: 2px;
}

.contact-item p,
.contact-item a {
  font-size: 0.95rem;
  color: var(--color-text-light);
}

/* ===== Form ===== */
.contact-form {
  background: var(--color-white);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(134, 200, 216, 0.1);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.95rem;
  font-family: var(--font-main);
  border: 2px solid rgba(134, 200, 216, 0.25);
  border-radius: 8px;
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-5);
  box-shadow: 0 0 0 3px rgba(134, 200, 216, 0.2);
}

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

.form-consent {
  margin-bottom: 24px;
}

.checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 8px;
  font-weight: 400 !important;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  accent-color: var(--color-5);
}

/* ===== Legal Pages ===== */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 0;
}

.legal-content h2 {
  font-size: 1.5rem;
  color: var(--color-dark);
  margin-top: 40px;
  margin-bottom: 16px;
}

.legal-content h3 {
  font-size: 1.15rem;
  color: var(--color-dark);
  margin-top: 28px;
  margin-bottom: 12px;
}

.legal-content p {
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 12px;
}

.legal-content ul {
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 12px;
  padding-left: 24px;
}

.legal-content a {
  color: var(--color-5);
}

/* ===== Success Page ===== */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
}

.success-icon {
  color: var(--color-5);
  margin-bottom: 24px;
}

/* ===== Footer ===== */
.footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand .nav-logo {
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.9rem;
  font-style: italic;
  opacity: 0.7;
}

.footer h4 {
  color: var(--color-white);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 8px;
}

.footer ul a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer ul a:hover {
  color: var(--color-white);
}

.footer-contact a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

.footer-contact a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 0.85rem;
}

/* ===== Animations ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s ease forwards;
}

.delay-1 {
  animation-delay: 0.2s;
}

.delay-2 {
  animation-delay: 0.4s;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll reveal */
.scroll-reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.services-grid .scroll-reveal:nth-child(2) { transition-delay: 0.1s; }
.services-grid .scroll-reveal:nth-child(3) { transition-delay: 0.2s; }
.services-grid .scroll-reveal:nth-child(4) { transition-delay: 0.3s; }
.services-grid .scroll-reveal:nth-child(5) { transition-delay: 0.4s; }
.services-grid .scroll-reveal:nth-child(6) { transition-delay: 0.5s; }

.process-grid .scroll-reveal:nth-child(2) { transition-delay: 0.15s; }
.process-grid .scroll-reveal:nth-child(3) { transition-delay: 0.3s; }
.process-grid .scroll-reveal:nth-child(4) { transition-delay: 0.45s; }

/* ===== Responsive ===== */
@media (max-width: 968px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

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

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    padding: 100px 32px 32px;
    gap: 8px;
    box-shadow: var(--shadow-lg);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links a {
    font-size: 1.1rem;
    padding: 12px 16px;
  }

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

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

  .hero h1 {
    font-size: 2rem;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 480px) {
  .process-grid {
    grid-template-columns: 1fr;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    text-align: center;
  }
}