/* 
  IVR TechnoSoft - Main Stylesheet
  Author: Developer
  Description: Styles for the IVR TechnoSoft website template
*/

/* 
  =====================================
  CSS Variables and Base Styles
  =====================================
*/
:root {
  /* Colors */
  --primary: #2563eb;        /* Primary Blue */
  --primary-dark: #1d4ed8;   /* Darker Blue for hover states */
  --primary-light: #93c5fd;  /* Lighter Blue for accents */
  --secondary: #10b981;      /* Secondary Green */
  --secondary-dark: #059669; /* Darker Green for hover states */
  --secondary-light: #a7f3d0;/* Lighter Green for accents */
  --dark: #1f2937;           /* Dark Gray for text */
  --gray: #4b5563;           /* Medium Gray for secondary text */
  --light-gray: #f3f4f6;     /* Light Gray for backgrounds */
  --white: #ffffff;          /* White */
  
  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;  /* 4px */
  --spacing-sm: 0.5rem;   /* 8px */
  --spacing-md: 1rem;     /* 16px */
  --spacing-lg: 1.5rem;   /* 24px */
  --spacing-xl: 2rem;     /* 32px */
  --spacing-2xl: 3rem;    /* 48px */
  
  /* Borders */
  --border-radius-sm: 0.25rem;   /* 4px */
  --border-radius-md: 0.5rem;    /* 8px */
  --border-radius-lg: 0.75rem;   /* 12px */
  --border-radius-full: 9999px;  /* Fully rounded */
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  color: var(--dark);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-md);
}

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

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

ul, ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-xl);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  cursor: pointer;
  font-family: var(--font-body);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* 
  =====================================
  Utility Classes
  =====================================
*/

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: var(--border-radius-full);
  transition: all var(--transition-normal);
  cursor: pointer;
  font-size: 1rem;
}

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

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

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

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

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

.btn-light:hover {
  background-color: var(--light-gray);
}

/* Section styles */
.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-2xl);
}

.section-title {
  margin-bottom: var(--spacing-md);
  font-size: 2.25rem;
  color: var(--dark);
}

.section-divider {
  width: 60px;
  height: 4px;
  background-color: var(--secondary);
  margin: 0 auto var(--spacing-md);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray);
  max-width: 600px;
  margin: 0 auto;
}

/* Animation Utilities */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeIn 0.5s ease forwards;
}

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

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

.delay-3 {
  animation-delay: 0.6s;
}

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

/* 
  =====================================
  Header and Navigation
  =====================================
*/
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--white);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  padding: 1rem 0;
}

.header.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--shadow-md);
}

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

.logo {
  display: flex;
  align-items: center;
}

.nav-desktop {
  display: none;
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }
}

.nav-link {
  color: var(--dark);
  font-weight: 500;
  font-size: 1rem;
  transition: color var(--transition-normal);
}

.nav-link:hover {
  color: var(--primary);
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
}

@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--dark);
  transition: all var(--transition-normal);
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 300px;
  height: 100vh;
  background-color: var(--white);
  z-index: 1001;
  box-shadow: var(--shadow-lg);
  transition: right var(--transition-normal);
  overflow-y: auto;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu-header {
  display: flex;
  justify-content: flex-end;
  padding: var(--spacing-md);
}

.menu-close {
  background: none;
  border: none;
  color: var(--dark);
  cursor: pointer;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-xl);
  gap: var(--spacing-xl);
}

.mobile-nav .nav-link {
  font-size: 1.125rem;
}

.mobile-nav .btn {
  margin-top: var(--spacing-md);
}

/* 
  =====================================
  Hero Section
  =====================================
*/
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-image: 
    linear-gradient(to right, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4)),
    url('https://images.unsplash.com/photo-1617802690992-15d93263d3a9?auto=format&fit=crop&w=1600&h=900');
  background-size: cover;
  background-position: center;
  color: var(--white);
  padding: 120px 0 60px;
}

.hero-content {
  max-width: 700px;
  z-index: 2;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
  line-height: 1.2;
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 3.5rem;
  }
}

.hero p {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

/* 
  =====================================
  Stats Section
  =====================================
*/
.stats {
  padding: var(--spacing-2xl) 0;
  background-color: var(--white);
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.stat-card {
  background-color: var(--light-gray);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-heading);
}

.stat-label {
  font-size: 1.125rem;
  color: var(--dark);
  font-weight: 500;
}

/* 
  =====================================
  About Section
  =====================================
*/
.about {
  padding: var(--spacing-2xl) 0;
  background-color: var(--light-gray);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 3fr 2fr;
  }
}

.about-content h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--dark);
}

.about-content p {
  margin-bottom: var(--spacing-lg);
  color: var(--gray);
}

.about-content .btn {
  margin-top: var(--spacing-md);
}

.about-image img {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
}

/* 
  =====================================
  Services Section
  =====================================
*/
.services {
  padding: var(--spacing-2xl) 0;
  background-color: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.service-accent {
  height: 4px;
  width: 100%;
}

.service-card.primary .service-accent {
  background-color: var(--primary);
}

.service-card.secondary .service-accent {
  background-color: var(--secondary);
}

.service-content {
  padding: var(--spacing-lg);
}

.service-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.service-card.primary .service-icon {
  color: var(--primary);
}

.service-card.secondary .service-icon {
  color: var(--secondary);
}

.service-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  color: var(--dark);
}

.service-description {
  color: var(--gray);
  margin-bottom: var(--spacing-lg);
  min-height: 4.8rem;
}

.service-link {
  display: flex;
  align-items: center;
  font-weight: 600;
  gap: var(--spacing-sm);
}

.service-card.primary .service-link {
  color: var(--primary);
}

.service-card.primary .service-link:hover {
  color: var(--primary-dark);
}

.service-card.secondary .service-link {
  color: var(--secondary);
}

.service-card.secondary .service-link:hover {
  color: var(--secondary-dark);
}

/* 
  =====================================
  Team Section
  =====================================
*/
.team {
  padding: var(--spacing-2xl) 0;
  background-color: var(--light-gray);
}

.team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .team-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.team-card {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal);
}

.team-card:hover {
  transform: translateY(-5px);
}

.team-image {
  height: 240px;
  overflow: hidden;
}

.team-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.team-card:hover .team-image img {
  transform: scale(1.05);
}

.team-info {
  padding: var(--spacing-lg);
}

.team-name {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
  color: var(--dark);
}

.team-position {
  color: var(--primary);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.team-bio {
  color: var(--gray);
  font-size: 0.9375rem;
}

/* 
  =====================================
  Testimonials Section
  =====================================
*/
.testimonials {
  padding: var(--spacing-2xl) 0;
  background-color: var(--white);
}

.testimonials-slider {
  position: relative;
  margin: 0 auto;
  max-width: 900px;
  overflow: hidden;
}

.testimonials-track {
  display: flex;
  transition: transform var(--transition-slow);
}

.testimonial-card {
  flex: 0 0 100%;
  padding: var(--spacing-lg);
  background-color: var(--light-gray);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  margin: 0 var(--spacing-md);
}

.testimonial-quote {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--dark);
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.testimonial-quote::before {
  content: '"';
  font-size: 4rem;
  color: var(--primary-light);
  position: absolute;
  top: -20px;
  left: -10px;
  opacity: 0.3;
  font-family: Georgia, serif;
}

.testimonial-author {
  display: flex;
  align-items: center;
}

.testimonial-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  overflow: hidden;
  margin-right: var(--spacing-md);
  border: 3px solid var(--primary-light);
}

.testimonial-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.testimonial-name {
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.testimonial-position {
  font-size: 0.875rem;
  color: var(--gray);
}

.testimonials-nav {
  display: flex;
  justify-content: center;
  margin-top: var(--spacing-xl);
  gap: var(--spacing-md);
}

.testimonial-nav-btn {
  background-color: var(--white);
  color: var(--primary);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.testimonial-nav-btn:hover {
  background-color: var(--primary);
  color: var(--white);
}

/* 
  =====================================
  CTA Section
  =====================================
*/
.cta {
  padding: var(--spacing-2xl) 0;
  background-color: var(--primary);
  color: var(--white);
}

.cta-content {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 2.25rem;
  margin-bottom: var(--spacing-md);
  color: var(--white);
}

.cta-content p {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xl);
  color: rgba(255, 255, 255, 0.9);
}

/* 
  =====================================
  Contact Section
  =====================================
*/
.contact {
  padding: var(--spacing-2xl) 0;
  background-color: var(--light-gray);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.contact-method {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.contact-icon {
  background-color: var(--primary-light);
  color: var(--primary);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-details h3 {
  color: var(--dark);
  margin-bottom: var(--spacing-xs);
  font-size: 1.25rem;
}

.contact-details p {
  color: var(--gray);
}

.contact-form-container {
  background-color: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.contact-form label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--dark);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid #ddd;
  border-radius: var(--border-radius-md);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-normal);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-message {
  margin-top: var(--spacing-md);
  text-align: center;
}

.form-message.success {
  color: var(--secondary);
}

.form-message.error {
  color: #e11d48;
}

/* 
  =====================================
  Footer
  =====================================
*/
.footer {
  background-color: var(--dark);
  color: var(--white);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: 2fr 3fr;
  }
}

.footer-logo {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer-logo p {
  color: rgba(255, 255, 255, 0.7);
  max-width: 300px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .footer-links {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-column h3 {
  color: var(--white);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
}

.footer-column a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--spacing-md);
  transition: color var(--transition-normal);
}

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

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: background-color var(--transition-normal);
}

.social-links a:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

/* 
  =====================================
  Back to Top Button
  =====================================
*/
.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--primary-dark);
  transform: translateY(-5px);
}