* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-green: #00A693;
  --color-cream: #D8CDAB;
  --color-dark: #0B2B26;
  --color-light: #FAF8F4;
  --color-text-light: #5B6D68;
  --color-text-dark: #3F5551;
  --color-bg-dark: #071815;
  --color-bg-dark-alt: #0E2723;
  --color-accent: #00D9BB;
  --color-accent-light: #7CE0CF;
  --font-main: 'Vazirmatn', system-ui, -apple-system, sans-serif;
  --shadow-sm: 0 4px 12px rgba(11, 43, 38, 0.08);
  --shadow-md: 0 12px 32px rgba(11, 43, 38, 0.12);
  --shadow-lg: 0 20px 60px rgba(11, 43, 38, 0.15);
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  line-height: 1.6;
  color: var(--color-text-dark);
  background: #fff;
  direction: rtl;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn-Regular.ttf') format('truetype');
  font-weight: 400;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn-SemiBold.ttf') format('truetype');
  font-weight: 600;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn-Bold.ttf') format('truetype');
  font-weight: 700;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn-Black.ttf') format('truetype');
  font-weight: 800;
}

/* ============ Navigation ============ */
nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 248, 244, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(11, 43, 38, 0.08);
}

nav.dark {
  background: rgba(7, 24, 21, 0.88);
  border-bottom-color: rgba(216, 205, 171, 0.12);
}

.nav-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.nav-logo {
  height: 28px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-links a {
  color: var(--color-text-dark);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: opacity 0.2s;
}

nav.dark .nav-links a {
  color: #CBD8D4;
}

.nav-links a:hover {
  opacity: 0.7;
}

.btn-primary {
  display: inline-block;
  background: var(--color-green);
  color: #fff;
  padding: 14px 28px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 15.5px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-main);
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(0, 166, 147, 0.35);
}

.btn-secondary {
  border: 1.5px solid rgba(11, 43, 38, 0.18);
  color: var(--color-dark);
  background: transparent;
  padding: 16px 32px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s;
  font-family: var(--font-main);
}

.btn-secondary:hover {
  background: rgba(11, 43, 38, 0.04);
}

/* ============ Hero Section ============ */
.hero {
  padding: 130px 40px 110px;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  font-size: 64px;
  line-height: 1.15;
  font-weight: 800;
  color: var(--color-dark);
  margin: 0 0 26px;
  letter-spacing: -0.5px;
}

.hero h1 .highlight {
  color: var(--color-green);
}

.hero p {
  font-size: 20px;
  line-height: 1.8;
  color: var(--color-text-light);
  margin: 0 auto 40px;
  max-width: 620px;
}

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

/* ============ Stats Section ============ */
.stats {
  max-width: 1180px;
  margin: 0 auto 110px;
  padding: 0 40px;
}

.stats-grid {
  background: linear-gradient(160deg, #D8CDAB33, #00A69314);
  border-radius: 28px;
  padding: 56px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}

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

.stat-number {
  font-size: 38px;
  font-weight: 800;
  color: var(--color-green);
}

.stat-label {
  color: var(--color-text-light);
  font-size: 14px;
  margin-top: 6px;
}

/* ============ Services Section ============ */
.services {
  padding: 100px 40px;
  max-width: 1180px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  font-size: 40px;
  font-weight: 800;
  color: var(--color-dark);
  margin: 0 0 14px;
  letter-spacing: -0.3px;
}

.section-header p {
  font-size: 18px;
  color: var(--color-text-light);
  margin: 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 22px;
}

.service-card {
  background: #fff;
  border: 1px solid rgba(11, 43, 38, 0.08);
  border-radius: 18px;
  padding: 32px 26px;
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.service-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(0, 166, 147, 0.12);
  color: var(--color-green);
  font-weight: 800;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-card h3 {
  color: var(--color-dark);
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 10px;
}

.service-card p {
  color: var(--color-text-light);
  font-size: 14.5px;
  line-height: 1.7;
  margin: 0;
}

/* ============ Process Section ============ */
.process {
  padding: 100px 40px;
  background: #F1ECE0;
}

.process-container {
  max-width: 1180px;
  margin: 0 auto;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

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

.step-number {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  color: #fff;
  font-weight: 800;
  font-size: 20px;
}

.process-step h3 {
  color: var(--color-dark);
  font-size: 16.5px;
  font-weight: 700;
  margin: 0 0 8px;
}

.process-step p {
  color: var(--color-text-light);
  font-size: 13.5px;
  margin: 0;
}

/* ============ Portfolio Section ============ */
.portfolio {
  padding: 110px 40px 100px;
  max-width: 1180px;
  margin: 0 auto;
}

.filter-buttons {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 36px 0;
}

.filter-btn {
  padding: 9px 20px;
  border-radius: 22px;
  font-size: 14px;
  cursor: pointer;
  font-family: var(--font-main);
  transition: all 0.2s;
  background: transparent;
  color: var(--color-text-light);
  border: 1px solid rgba(11, 43, 38, 0.16);
}

.filter-btn.active {
  background: var(--color-dark);
  color: #fff;
  border-color: var(--color-dark);
  font-weight: 700;
}

.filter-btn:hover {
  border-color: var(--color-green);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

.portfolio-card {
  background: #fff;
  border: 1px solid rgba(11, 43, 38, 0.08);
  border-radius: 18px;
  overflow: hidden;
  transition: box-shadow 0.3s;
}

.portfolio-card:hover {
  box-shadow: var(--shadow-md);
}

.portfolio-image {
  height: 130px;
  background: linear-gradient(135deg, #D8CDAB55, #00A69322);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #3F7A70;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.portfolio-content {
  padding: 22px;
}

.portfolio-category {
  color: var(--color-green);
  font-size: 13px;
  font-weight: 600;
  margin: 0 0 8px;
}

.portfolio-card h3 {
  color: var(--color-dark);
  font-size: 16.5px;
  font-weight: 700;
  margin: 0 0 8px;
}

.portfolio-card p {
  color: var(--color-text-light);
  font-size: 13.5px;
  margin: 0;
  line-height: 1.6;
}

/* ============ Pricing Section ============ */
.pricing {
  padding: 100px 40px;
  background: #F1ECE0;
}

.pricing-container {
  max-width: 1180px;
  margin: 0 auto;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.pricing-card {
  background: #fff;
  border: 1px solid rgba(11, 43, 38, 0.08);
  border-radius: 22px;
  padding: 36px 30px;
  position: relative;
}

.pricing-card.featured {
  background: linear-gradient(160deg, #fff, #EAF6F3);
  border: 1.5px solid var(--color-green);
  transform: translateY(-8px);
}

.pricing-badge {
  position: absolute;
  top: -13px;
  right: 30px;
  background: var(--color-dark);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 20px;
}

.pricing-card h3 {
  color: var(--color-dark);
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 6px;
}

.pricing-subtitle {
  color: var(--color-text-light);
  font-size: 13.5px;
  margin: 0 0 22px;
}

.pricing-price {
  color: var(--color-green);
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 22px;
}

.pricing-list {
  margin-bottom: 24px;
}

.pricing-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 12px;
}

.pricing-item::before {
  content: '✓';
  color: var(--color-green);
  font-weight: 800;
  margin-top: 1px;
}

.pricing-item span {
  color: var(--color-text-dark);
  font-size: 14px;
  line-height: 1.6;
}

/* ============ About Section ============ */
.about {
  padding: 110px 40px;
  max-width: 1180px;
  margin: 0 auto;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  background: linear-gradient(160deg, #D8CDAB40, #00A69318);
  border-radius: 26px;
  padding: 48px;
  text-align: center;
}

.about-image img {
  height: 64px;
  width: auto;
  margin-bottom: 20px;
}

.about-image p {
  color: var(--color-text-dark);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}

.about-content h2 {
  font-size: 38px;
  font-weight: 800;
  color: var(--color-dark);
  margin: 0 0 20px;
  letter-spacing: -0.3px;
}

.about-content p {
  font-size: 17px;
  line-height: 1.9;
  color: var(--color-text-light);
  margin: 0 0 20px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.feature-item {
  display: flex;
  gap: 12px;
}

.feature-icon {
  color: var(--color-green);
  font-weight: 800;
  font-size: 18px;
}

.feature-item h4 {
  color: var(--color-dark);
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 4px;
}

.feature-item p {
  color: var(--color-text-light);
  font-size: 13px;
  margin: 0;
  line-height: 1.6;
}

/* ============ Blog Section ============ */
.blog {
  padding: 100px 40px;
  background: #F1ECE0;
}

.blog-container {
  max-width: 1180px;
  margin: 0 auto;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.blog-card {
  background: #fff;
  border: 1px solid rgba(11, 43, 38, 0.08);
  border-radius: 18px;
  padding: 28px;
}

.blog-tag {
  color: var(--color-green);
  font-size: 12.5px;
  font-weight: 600;
  margin: 0 0 12px;
}

.blog-card h3 {
  color: var(--color-dark);
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 10px;
  line-height: 1.5;
}

.blog-card p {
  color: var(--color-text-light);
  font-size: 13.5px;
  margin: 0;
  line-height: 1.7;
}

/* ============ Contact Section ============ */
.contact {
  padding: 110px 40px;
  max-width: 900px;
  margin: 0 auto;
}

.contact-header {
  text-align: center;
  margin-bottom: 44px;
}

.contact-header h2 {
  font-size: 40px;
  font-weight: 800;
  color: var(--color-dark);
  margin: 0 0 14px;
  letter-spacing: -0.3px;
}

.contact-header p {
  font-size: 17px;
  color: var(--color-text-light);
  margin: 0;
}

.form-container {
  background: #fff;
  border: 1px solid rgba(11, 43, 38, 0.08);
  box-shadow: var(--shadow-lg);
  border-radius: 22px;
  padding: 40px;
}

.form-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

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

.form-input,
.form-textarea {
  width: 100%;
  box-sizing: border-box;
  border-radius: 10px;
  padding: 14px 16px;
  font-family: var(--font-main);
  font-size: 15px;
  outline: none;
  background: #FAF8F4;
  border: 1px solid rgba(11, 43, 38, 0.12);
  color: var(--color-dark);
  transition: border-color 0.2s;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-green);
  background: #fff;
}

.form-input.error,
.form-textarea.error {
  border-color: #d64545;
}

.form-error {
  color: #d64545;
  font-size: 12.5px;
  margin-top: 6px;
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-submit {
  width: 100%;
  margin-top: 24px;
}

.success-message {
  background: rgba(0, 166, 147, 0.08);
  border: 1px solid rgba(0, 166, 147, 0.3);
  border-radius: 18px;
  padding: 40px;
  text-align: center;
}

.success-icon {
  font-size: 36px;
  color: var(--color-green);
  margin-bottom: 10px;
}

.success-message h3 {
  color: var(--color-dark);
  font-size: 20px;
  margin: 0 0 8px;
}

.success-message p {
  color: var(--color-text-light);
  margin: 0;
}

/* ============ Footer ============ */
footer {
  border-top: 1px solid rgba(11, 43, 38, 0.08);
  padding: 56px 40px 32px;
  background: #FAF8F4;
}

.footer-container {
  max-width: 1180px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 36px;
}

.footer-brand img {
  height: 24px;
  width: auto;
  margin-bottom: 14px;
}

.footer-brand p {
  color: var(--color-text-light);
  font-size: 13.5px;
  line-height: 1.7;
  margin: 0;
}

.footer-section h4 {
  color: var(--color-dark);
  font-size: 14.5px;
  font-weight: 700;
  margin: 0 0 14px;
}

.footer-section a {
  display: block;
  color: var(--color-text-light);
  font-size: 13.5px;
  text-decoration: none;
  margin-bottom: 9px;
  transition: opacity 0.2s;
}

.footer-section a:hover {
  opacity: 0.7;
}

.footer-bottom {
  border-top: 1px solid rgba(11, 43, 38, 0.07);
  padding-top: 24px;
  text-align: center;
  color: #8C9A96;
  font-size: 13px;
}

/* ============ Mobile Responsive ============ */
@media (max-width: 768px) {
  .nav-container {
    padding: 0 20px;
    height: 64px;
  }

  .nav-links {
    display: none;
  }

  .nav-mobile-toggle {
    display: block;
    background: none;
    border: none;
    color: var(--color-dark);
    font-size: 22px;
    cursor: pointer;
  }

  .hero {
    padding: 80px 20px 60px;
  }

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

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

  .hero .cta-buttons {
    flex-direction: column;
  }

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

  .services-grid,
  .process-grid,
  .portfolio-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }

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

  .pricing-card.featured {
    transform: translateY(0);
  }

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

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

  .form-group {
    grid-template-columns: 1fr;
    gap: 18px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 28px;
  }

  .section-header h2 {
    font-size: 28px;
  }

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

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