/* --- المتغيرات والتجهيز العام --- */
:root {
  --primary-color: #0f172a;
  --secondary-color: #2563eb;
  --accent-color: #38bdf8;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --border-color: #e2e8f0;
  --error-color: #ef4444;
  --success-color: #10b981;
  --radius: 12px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Cairo', sans-serif;
  color: var(--text-main);
  background-color: var(--bg-white);
  line-height: 1.7;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* --- الهيدر وشريط التنقل --- */
.site-header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  z-index: 1000;
  padding: 1rem 0;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary-color);
  text-decoration: none;
}

.brand-logo i {
  color: var(--secondary-color);
}

.brand-logo span span {
  color: var(--secondary-color);
}

.site-nav ul {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-main);
  font-weight: 600;
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--secondary-color);
}

.btn-nav {
  padding: 0.5rem 1.2rem;
  background: var(--secondary-color);
  color: #fff !important;
  border-radius: var(--radius);
}

.btn-nav:hover {
  background: #1d4ed8;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary-color);
  cursor: pointer;
}

/* --- الأزرار المشتركة --- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--secondary-color);
  color: #fff;
}

.btn-primary:hover {
  background-color: #1d4ed8;
}

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

.btn-outline:hover {
  background-color: var(--secondary-color);
  color: #fff;
}

.btn-block {
  width: 100%;
}

/* --- عناوين الأقسام --- */
.section-title {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-title span {
  color: var(--secondary-color);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.section-title h2 {
  font-size: 2.1rem;
  color: var(--primary-color);
  margin-top: 0.3rem;
}

/* --- قسم الهيرو --- */
.hero-section {
  padding: 6rem 0 5rem;
  background: radial-gradient(circle at top right, #eff6ff, #ffffff);
}

.hero-container {
  max-width: 850px;
  text-align: center;
}

.badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  background-color: #dbeafe;
  color: var(--secondary-color);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
}

.hero-title {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--primary-color);
  line-height: 1.3;
  margin-bottom: 1.2rem;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --- قسم عنا --- */
.about-section {
  padding: 5rem 0;
  background-color: var(--bg-light);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.about-text-card {
  background: var(--bg-white);
  padding: 2.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.about-text-card h3 {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.about-text-card p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.stats-row {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

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

.stat-number {
  display: block;
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--secondary-color);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.about-values-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.value-item {
  display: flex;
  gap: 1.2rem;
  background: var(--bg-white);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.value-icon {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  background: #eff6ff;
  color: var(--secondary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.value-item h4 {
  font-size: 1.1rem;
  color: var(--primary-color);
  margin-bottom: 0.3rem;
}

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

/* --- قسم الخدمات --- */
.services-section {
  padding: 5rem 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--bg-white);
  padding: 2.2rem 1.8rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.06);
  border-color: #bfdbfe;
}

.service-icon {
  width: 55px;
  height: 55px;
  background-color: #eff6ff;
  color: var(--secondary-color);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.3rem;
}

.service-card h3 {
  font-size: 1.2rem;
  color: var(--primary-color);
  margin-bottom: 0.8rem;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* --- قسم التواصل --- */
.contact-section {
  padding: 5rem 0;
  background-color: var(--bg-light);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 2.5rem;
}

.contact-info {
  background: var(--primary-color);
  color: #fff;
  padding: 2.5rem;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-info h3 {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}

.contact-info > p {
  color: #94a3b8;
  margin-bottom: 2rem;
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.info-item {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.info-item i {
  color: var(--accent-color);
  font-size: 1.2rem;
  width: 25px;
}

.info-item div {
  display: flex;
  flex-direction: column;
}

.info-item strong {
  font-size: 0.85rem;
  color: #94a3b8;
}

.info-item span {
  font-size: 1rem;
}

.social-links {
  display: flex;
  gap: 0.8rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--secondary-color);
}

.contact-form-card {
  background: var(--bg-white);
  padding: 2.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.form-group {
  margin-bottom: 1.2rem;
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--primary-color);
}

.form-group input,
.form-group textarea {
  font-family: inherit;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.form-group.invalid input,
.form-group.invalid textarea {
  border-color: var(--error-color);
}

.error-msg {
  color: var(--error-color);
  font-size: 0.8rem;
  margin-top: 0.3rem;
  display: none;
}

.form-group.invalid .error-msg {
  display: block;
}

/* --- الفوتر --- */
.site-footer {
  padding: 2rem 0;
  background: #090d16;
  color: #94a3b8;
  font-size: 0.9rem;
  text-align: center;
}

/* --- النافذة المنبثقة (Modal) --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 2000;
  padding: 1rem;
}

.modal-overlay.show {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: #fff;
  padding: 2.5rem;
  border-radius: var(--radius);
  max-width: 420px;
  text-align: center;
  transform: translateY(20px);
  transition: var(--transition);
}

.modal-overlay.show .modal-card {
  transform: translateY(0);
}

.modal-icon {
  width: 65px;
  height: 65px;
  background: #dcfce7;
  color: var(--success-color);
  font-size: 1.8rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.2rem;
}

.modal-card h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.modal-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

/* --- التجاوب مع الشاشات (Responsive) --- */
@media (max-width: 900px) {
  .about-grid,
  .contact-wrapper {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2.2rem;
  }
}

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

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg-white);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.08);
    display: none;
    padding: 1.5rem 0;
  }

  .site-nav.active {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 1.2rem;
  }
}