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

:root {
  --color-primary: #1e6b9a;
  --color-accent: #2b8cc4;
  --color-dark: #0f2b3d;
  --color-light-bg: #f7f9fc;
  --color-text: #2d3748;
  --color-muted: #718096;
  --color-border: #e2e8f0;
  --color-white: #ffffff;
  --color-success: #38a169;
  --font-sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --container-width: 1120px;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.75;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

img {
  /* max-width: 100%; */
  height: auto;
}

/* ===== Header ===== */
.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo-link {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-dark);
  letter-spacing: -0.02em;
  gap: 0.5rem;
  transition: opacity var(--transition);
}
.logo-link:hover {
  opacity: 0.8;
  text-decoration: none;
  color: var(--color-dark);
}

.logo {
  height: 44px;
  width: auto;
}

/* ===== Navigation ===== */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-list li a {
  display: block;
  padding: 0.5rem 0.85rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  position: relative;
}

.nav-list li a:hover,
.nav-list li a.active {
  color: var(--color-primary);
  background: var(--color-light-bg);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--color-dark);
  padding: 0.35rem 0.65rem;
  transition: all var(--transition);
}
.nav-toggle:hover {
  background: var(--color-light-bg);
  border-color: var(--color-muted);
}

/* ===== Dropdown Nav ===== */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.dropdown-arrow {
  transition: transform var(--transition);
  flex-shrink: 0;
}

.nav-dropdown:hover > .nav-dropdown-toggle .dropdown-arrow,
.nav-dropdown.open > .nav-dropdown-toggle .dropdown-arrow {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  list-style: none;
  position: absolute;
  top: calc(100% + 0.4rem);
  left: 50%;
  min-width: 200px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 8px);
  transition:
    opacity var(--transition),
    visibility var(--transition),
    transform var(--transition);
  z-index: 200;
}

.nav-dropdown-menu::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px;
  height: 12px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-bottom: none;
  border-right: none;
  border-radius: 2px 0 0 0;
}

/* Desktop only: hover to open dropdown */
@media (min-width: 769px) {
  .nav-dropdown:hover > .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
  }
}

/* Click-based open (used on mobile, also works on desktop) */
.nav-dropdown.open > .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.nav-dropdown-menu li a {
  display: block;
  padding: 0.55rem 1.25rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-muted);
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-dropdown-menu li a:hover {
  color: var(--color-primary);
  background: var(--color-light-bg);
  text-decoration: none;
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  /* background: linear-gradient(
    135deg,
    var(--color-dark) 0%,
    var(--color-primary) 100%
  ); */
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      ellipse at 20% 50%,
      rgba(43, 140, 196, 0.3) 0%,
      transparent 70%
    ),
    radial-gradient(
      ellipse at 80% 20%,
      rgba(56, 161, 105, 0.15) 0%,
      transparent 60%
    );
  pointer-events: none;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% calc(100%);
  position: absolute;
  inset: 0;
  opacity: 1;
  /* mix-blend-mode: luminosity; */
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 4rem 2rem;
  max-width: 720px;
}

.hero-content h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.hero-content p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.hero-content .btn {
  font-size: 1rem;
  padding: 0.8rem 2rem;
}

/* ===== Page Content ===== */
.page-content {
  padding: 4rem 2rem;
  min-height: 60vh;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
}

.page-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.page-subtitle {
  color: var(--color-muted);
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.page-title + .content {
  margin-top: 2rem;
}
/* ===== Content Typography ===== */
.content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-dark);
  margin: 2.5rem 0 0.75rem;
  letter-spacing: -0.02em;
}
.content h2:first-child {
  margin-top: 0;
}
.content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: 1.75rem 0 0.5rem;
}
.content p {
  margin-bottom: 1.1rem;
  line-height: 1.8;
}
.content ul,
.content ol {
  margin: 0.75rem 0 1.25rem 1.5rem;
}
.content li {
  margin-bottom: 0.4rem;
  line-height: 1.7;
}
.content li::marker {
  color: var(--color-accent);
}
.content blockquote {
  border-left: 4px solid var(--color-accent);
  padding: 1rem 1.5rem;
  background: var(--color-light-bg);
  margin: 1.5rem 0;
  color: var(--color-muted);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
}
.content hr {
  border: none;
  height: 1px;
  background: var(--color-border);
  margin: 2.5rem 0;
}
.content strong {
  font-weight: 600;
  color: var(--color-dark);
}

/* ===== About / Portrait Section ===== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 540px;
  gap: 3rem;
  align-items: start;
  margin-bottom: 3rem;
}

.about-text h1 {
  line-height: 1.2;
}

.about-text h2 {
  margin-top: -0.5rem;
  font-weight: 700;
}

.about-text p {
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
  max-width: 90%;
}

.portrait-wrapper {
  position: relative;
}

.portrait-wrapper::before {
  content: "";
  position: absolute;
  inset: -8px;
  background: linear-gradient(
    135deg,
    var(--color-accent),
    var(--color-primary)
  );
  border-radius: 50%;
  opacity: 0.15;
}

.portrait {
  width: 540px;
  height: 540px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  position: relative;
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--color-white);
  object-position: 0% 0%;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(43, 140, 196, 0.25);
}
.btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(43, 140, 196, 0.35);
}
.btn:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
  box-shadow: none;
}
.btn-outline:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-lg {
  padding: 0.9rem 2.25rem;
  font-size: 1.05rem;
}

/* ===== Services Grid (home) ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: left;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;

  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: transparent;
}

.service-card h3 {
  color: var(--color-dark);
  font-weight: 700;
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}
.service-card p {
  color: var(--color-muted);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  line-height: 1.65;
}
.service-card a {
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.service-card a:hover {
  gap: 0.5rem;
}

/* ===== Testimonials ===== */
.testimonials {
  background: var(--color-light-bg);
  padding: 3.5rem 2rem;
  border-radius: var(--radius-lg);
  margin: 3rem 0;
}

.testimonials h2 {
  color: var(--color-dark);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-align: center;
  letter-spacing: -0.02em;
}

.testimonials > p {
  text-align: center;
  color: var(--color-muted);
  margin-bottom: 2rem;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.testimonial {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
}

.testimonial:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.testimonial::before {
  content: "\201C";
  font-size: 3rem;
  color: var(--color-accent);
  opacity: 0.3;
  position: absolute;
  top: 0.5rem;
  left: 1rem;
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial p {
  font-style: italic;
  color: var(--color-muted);
  margin-bottom: 1rem;
  font-size: 0.95rem;
  line-height: 1.7;
  padding-top: 1rem;
}
.testimonial cite {
  font-style: normal;
  font-weight: 600;
  color: var(--color-dark);
  font-size: 0.9rem;
  display: block;
}

/* ===== Blog List ===== */
.blog-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.5rem;
}

.blog-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  background: var(--color-white);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: transparent;
}
.blog-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
  line-height: 1.35;
}
.blog-card-title a {
  color: var(--color-dark);
  transition: color var(--transition);
}
.blog-card-title a:hover {
  color: var(--color-accent);
  text-decoration: none;
}
.blog-card-date {
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-bottom: 0.75rem;
  font-weight: 500;
}
.blog-card-summary {
  color: var(--color-text);
  margin-bottom: 1rem;
  font-size: 0.95rem;
  line-height: 1.7;
  flex-grow: 1;
}
.read-more {
  font-weight: 600;
  color: var(--color-accent);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: gap var(--transition);
}
.read-more:hover {
  gap: 0.5rem;
  text-decoration: none;
}

/* ===== Contact Form ===== */
.contact-form {
  max-width: 560px;
}
.contact-form label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
  color: var(--color-dark);
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  background: var(--color-white);
  color: var(--color-text);
  transition: all var(--transition);
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(43, 140, 196, 0.12);
}
.contact-form textarea {
  min-height: 160px;
  resize: vertical;
}
.contact-form .btn {
  margin-top: 0.5rem;
}

/* ===== Stats / Highlights ===== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  margin: 2.5rem 0;
}

.stat-item {
  text-align: center;
  padding: 1.5rem 1rem;
  background: var(--color-light-bg);
  border-radius: var(--radius);
}

.stat-number {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.stat-label {
  display: block;
  font-size: 0.88rem;
  color: var(--color-muted);
  margin-top: 0.25rem;
  font-weight: 500;
}

/* ===== Section Divider ===== */
.section-divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
  border: none;
  border-radius: 2px;
  margin: 2rem 0;
}

/* ===== CTA Section ===== */
.cta-section {
  background: var(--color-light-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
  margin: 3rem 0;
  position: relative;
}

.cta-section::before {
  display: none;
}

.cta-section h2 {
  color: var(--color-dark);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.cta-section p {
  color: var(--color-muted);
  margin-bottom: 1.25rem;
  font-size: 1rem;
}
.cta-section .btn {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}
.cta-section .btn:hover {
  background: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.6);
  padding: 2.5rem 2rem;
  margin-top: 0;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-inner p {
  font-size: 0.88rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.88rem;
  transition: color var(--transition);
}
.footer-links a:hover {
  color: var(--color-white);
  text-decoration: none;
}

/* ===== Responsive ===== */

@media (max-width: 1200px) {
  .about-intro {
    grid-template-columns: 1fr 320px;
  }
  .portrait {
    width: 320px;
    height: 320px;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    padding: 0.75rem 0;
    z-index: 99;
  }
  .nav-list.open {
    display: flex;
  }
  .nav-list li a {
    padding: 0.75rem 1.5rem;
    border-radius: 0;
    font-size: 0.95rem;
  }

  /* Mobile dropdown */
  .nav-dropdown {
    position: static;
    width: 100%;
  }
  .nav-dropdown-menu {
    position: static !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    box-shadow: none;
    border: none;
    border-radius: 0;
    width: 100%;
    min-width: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: rgba(0, 0, 0, 0.03);
  }
  .nav-dropdown-menu::before {
    display: none;
  }
  .nav-dropdown.open > .nav-dropdown-menu {
    max-height: 500px;
  }
  .nav-dropdown-menu li a {
    padding: 0.6rem 1.5rem 0.6rem 2.5rem;
    font-size: 0.9rem;
    border-radius: 0;
  }
  .nav-dropdown-toggle {
    width: 100%;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
  }

  .hero-content {
    padding: 3rem 1.5rem;
  }

  .about-intro {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .about-text h2 {
    margin-top: 0;
  }

  .about-text p {
    max-width: 100%;
    margin-left: 20px;
    margin-right: 20px;
  }

  .about-intro .portrait-wrapper {
    justify-self: center;
    order: -1;
  }
  .portrait {
    width: 200px;
    height: 200px;
  }

  .page-content {
    padding: 2.5rem 1.25rem;
  }
  .page-title {
    font-size: 1.75rem;
  }

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

  .blog-list {
    grid-template-columns: 1fr;
  }

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

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

  .cta-section {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 0 1rem;
    height: 64px;
  }
  .nav-list {
    top: 64px;
  }
  .hero-content h1 {
    font-size: 1.75rem;
  }
  .stats-row {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out both;
}

.fade-in-up:nth-child(2) {
  animation-delay: 0.1s;
}
.fade-in-up:nth-child(3) {
  animation-delay: 0.2s;
}
.fade-in-up:nth-child(4) {
  animation-delay: 0.3s;
}