/* 
   Main CSS file for Viraj Hapaliya's Portfolio Website
   Featuring a warm color palette with professional styling
*/

:root {
  /* Warm Color Palette */
  --primary-color: #e85a4f; /* Warm red */
  --primary-light: #ff8a80; /* Light warm red */
  --primary-dark: #b71c1c; /* Dark warm red */
  --secondary-color: #e98074; /* Salmon */
  --accent-color: #fdcb6e; /* Warm yellow */
  --background-color: #faf9f8; /* Off-white */
  --background-alt: #eae7dc; /* Light beige */
  --text-color: #333333; /* Dark gray */
  --text-light: #8e8d8a; /* Light gray */
  --white: #ffffff;
  --black: #000000;
  --success: #66bb6a;
  --error: #f44336;

  /* Typography */
  --font-primary: "Poppins", sans-serif;
  --font-size-small: 0.875rem;
  --font-size-normal: 1rem;
  --font-size-medium: 1.25rem;
  --font-size-large: 1.5rem;
  --font-size-xlarge: 2rem;
  --font-size-xxlarge: 3rem;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Border Radius */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-full: 50%;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows */
  --shadow-small: 0 2px 5px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 5px 15px rgba(0, 0, 0, 0.1);
  --shadow-large: 0 10px 25px rgba(0, 0, 0, 0.1);
}

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

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

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

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

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

ul {
  list-style: none;
}

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

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

section {
  padding: var(--spacing-xl) 0;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-md);
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-normal);
  border: none;
  outline: none;
}

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

.primary-btn:hover {
  background-color: var(--primary-dark);
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

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

.secondary-btn:hover {
  background-color: var(--primary-color);
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-header h2 {
  font-size: var(--font-size-xlarge);
  margin-bottom: var(--spacing-sm);
  color: var(--primary-dark);
  position: relative;
  display: inline-block;
}

.underline {
  height: 4px;
  width: 70px;
  background-color: var(--accent-color);
  margin: 0 auto;
  margin-top: var(--spacing-sm);
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--white);
  box-shadow: var(--shadow-small);
  z-index: 1000;
  padding: var(--spacing-md) 0;
  transition: var(--transition-normal);
}

header.scrolled {
  padding: 0.5rem 0;
  background-color: rgba(255, 255, 255, 0.95);
}

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

.logo h1 {
  font-size: var(--font-size-large);
  font-weight: 700;
  color: var(--text-color);
}

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

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

.nav-links li {
  margin-left: var(--spacing-lg);
}

.nav-links a {
  color: var(--text-color);
  font-weight: 500;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition-normal);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.hamburger {
  display: none;
  cursor: pointer;
}

.bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  background-color: var(--text-color);
  transition: var(--transition-normal);
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--background-alt);
  position: relative;
  overflow: hidden;
  padding-top: 80px; /* Account for fixed header */
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(233, 128, 116, 0.1) 0%,
    rgba(232, 90, 79, 0.2) 100%
  );
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero-content h1 {
  font-size: var(--font-size-xxlarge);
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
}

.hero-content h1 span {
  color: var(--primary-color);
  display: block;
}

.hero-content h2 {
  font-size: var(--font-size-large);
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
}

.hero-content p {
  font-size: var(--font-size-medium);
  margin-bottom: var(--spacing-lg);
}

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

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.profile-placeholder {
  width: 300px;
  height: 300px;
  background-color: var(--background-color);
  border-radius: var(--border-radius-full);
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: var(--shadow-large);
  border: 5px solid var(--white);
}

.profile-placeholder i {
  font-size: 150px;
  color: var(--text-light);
}

/* About Section */
.about {
  background-color: var(--white);
}

.about-content {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
}

.about-text {
  flex: 1;
  min-width: 300px;
}

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

.about-info {
  flex: 1;
  min-width: 300px;
}

.info-item {
  margin-bottom: var(--spacing-lg);
}

.info-item h3 {
  font-size: var(--font-size-medium);
  margin-bottom: var(--spacing-sm);
  color: var(--primary-color);
}

.info-item ul li {
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
}

.info-item ul li i {
  margin-right: var(--spacing-sm);
  color: var(--primary-color);
}

/* Skills Section */
.skills {
  background-color: var(--background-alt);
}

.skills-content {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.skill-category {
  background-color: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-small);
  transition: var(--transition-normal);
}

.skill-category:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.skill-category h3 {
  font-size: var(--font-size-medium);
  margin-bottom: var(--spacing-md);
  color: var(--primary-color);
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: var(--spacing-sm);
}

.skill-items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.skill-item {
  background-color: var(--background-alt);
  color: var(--text-color);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-small);
  font-weight: 500;
  transition: var(--transition-fast);
}

.skill-item:hover {
  background-color: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
}

/* Experience Section */
.experience {
  background-color: var(--white);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background-color: var(--primary-light);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-xl);
}

.timeline-dot {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  border-radius: var(--border-radius-full);
  background-color: var(--primary-color);
  z-index: 1;
}

.timeline-date {
  position: absolute;
  top: 0;
  left: 0;
  width: 45%;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--accent-color);
  color: var(--text-color);
  border-radius: var(--border-radius-sm);
  text-align: right;
  font-weight: 500;
}

.timeline-content {
  margin-left: 55%;
  padding: var(--spacing-lg);
  background-color: var(--background-alt);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-small);
}

.timeline-content h3 {
  font-size: var(--font-size-medium);
  margin-bottom: var(--spacing-xs);
  color: var(--primary-color);
}

.timeline-content h4 {
  font-size: var(--font-size-normal);
  margin-bottom: var(--spacing-md);
  color: var(--text-light);
}

.timeline-content ul li {
  margin-bottom: var(--spacing-sm);
  position: relative;
  padding-left: var(--spacing-lg);
}

.timeline-content ul li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: var(--border-radius-full);
  background-color: var(--primary-color);
}

/* Education Section */
.education {
  background-color: var(--background-alt);
}

.education-content {
  max-width: 800px;
  margin: 0 auto;
}

.education-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-lg);
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-small);
  transition: var(--transition-normal);
}

.education-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.education-icon {
  margin-right: var(--spacing-lg);
  width: 50px;
  height: 50px;
  background-color: var(--primary-light);
  border-radius: var(--border-radius-full);
  display: flex;
  justify-content: center;
  align-items: center;
}

.education-icon i {
  font-size: var(--font-size-large);
  color: var(--white);
}

.education-info h3 {
  font-size: var(--font-size-medium);
  margin-bottom: var(--spacing-xs);
  color: var(--primary-color);
}

.education-info h4 {
  font-size: var(--font-size-normal);
  margin-bottom: var(--spacing-xs);
  color: var(--text-light);
}

.education-info p {
  font-size: var(--font-size-small);
  color: var(--text-light);
}

.certifications {
  max-width: 800px;
  margin: var(--spacing-xl) auto 0;
  padding: var(--spacing-lg);
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-small);
}

.certifications h3 {
  font-size: var(--font-size-medium);
  margin-bottom: var(--spacing-md);
  color: var(--primary-color);
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: var(--spacing-sm);
}

.certifications ul li {
  margin-bottom: var(--spacing-sm);
  position: relative;
  padding-left: var(--spacing-lg);
}

.certifications ul li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: var(--border-radius-full);
  background-color: var(--primary-color);
}

/* Projects Section */
.projects {
  background-color: var(--white);
}

.project-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

.filter-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--background-alt);
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--primary-color);
  color: var(--white);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.project-card {
  background-color: var(--background-alt);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-small);
  transition: var(--transition-normal);
}

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

.project-img {
  height: 200px;
  background-color: var(--text-light);
  position: relative;
  overflow: hidden;
}

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

.project-card:hover .project-img img {
  transform: scale(1.1);
}

.project-video-icon {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 40px;
  height: 40px;
  background-color: var(--primary-color);
  border-radius: var(--border-radius-full);
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--white);
  z-index: 1;
}

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

.project-info h3 {
  font-size: var(--font-size-medium);
  margin-bottom: var(--spacing-sm);
  color: var(--primary-color);
}

.project-info p {
  margin-bottom: var(--spacing-md);
  color: var(--text-color);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.project-tech span {
  font-size: var(--font-size-small);
  padding: 2px 8px;
  background-color: var(--accent-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-color);
}

.project-links {
  display: flex;
  gap: var(--spacing-sm);
}

.project-links a {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-full);
  background-color: var(--primary-light);
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--white);
  transition: var(--transition-fast);
}

.project-links a:hover {
  background-color: var(--primary-color);
  transform: translateY(-3px);
}

/* Contact Section */
.contact {
  background-color: var(--background-alt);
}

.contact-content {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
}

.contact-info {
  flex: 1;
  min-width: 300px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.contact-item {
  background-color: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-small);
  text-align: center;
  transition: var(--transition-normal);
}

.contact-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.contact-item i {
  font-size: var(--font-size-xlarge);
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.contact-item h3 {
  font-size: var(--font-size-medium);
  margin-bottom: var(--spacing-sm);
  color: var(--primary-color);
}

.contact-form {
  flex: 1;
  min-width: 300px;
  background-color: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-small);
}

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

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--text-light);
  border-radius: var(--border-radius-sm);
  font-family: var(--font-primary);
  font-size: var(--font-size-normal);
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(232, 90, 79, 0.2);
}

/* Footer */
footer {
  background-color: var(--text-color);
  color: var(--white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
}

.footer-logo h2 {
  font-size: var(--font-size-large);
  color: var(--white);
}

.footer-logo span {
  color: var(--primary-light);
}

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

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-full);
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--white);
  transition: var(--transition-fast);
}

.footer-social a:hover {
  background-color: var(--primary-color);
  transform: translateY(-3px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive Styles */
@media screen and (max-width: 992px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }

  .timeline::before {
    left: 30px;
  }

  .timeline-dot {
    left: 30px;
  }

  .timeline-date {
    position: relative;
    width: 100%;
    text-align: left;
    left: 70px;
    margin-bottom: var(--spacing-md);
  }

  .timeline-content {
    margin-left: 70px;
    width: calc(100% - 70px);
  }
}

@media screen and (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--white);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
    z-index: 999;
  }

  .nav-links.active {
    left: 0;
  }

  .nav-links li {
    margin: var(--spacing-md) 0;
  }

  .hamburger {
    display: block;
  }

  .hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .hamburger.active .bar:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero .container {
    flex-direction: column;
    text-align: center;
  }

  .hero-content {
    margin-bottom: var(--spacing-xl);
  }

  .hero-buttons {
    justify-content: center;
  }
}

@media screen and (max-width: 576px) {
  .hero-content h1 {
    font-size: 2rem;
  }

  .hero-content h2 {
    font-size: var(--font-size-medium);
  }

  .section-header h2 {
    font-size: var(--font-size-large);
  }

  .project-filters {
    flex-direction: column;
    align-items: center;
  }

  .filter-btn {
    width: 100%;
    max-width: 200px;
  }
}

/* Projects Section Specific Styles - Added in project-showcase.css */

/* Demo Videos Section */
.demos {
  background-color: var(--background-alt);
}

.demos-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.section-intro {
  font-size: var(--font-size-normal);
  color: var(--text-light);
  margin-bottom: var(--spacing-lg);
}

/* Slider Container */
.demo-slider-container {
  position: relative;
  width: 100%;
  overflow: hidden;
  margin: 0 auto;
}

.demo-slider {
  display: flex;
  transition: transform 0.5s ease-in-out;
  width: 100%;
}

.demo-slide {
  min-width: 100%;
  padding: 0 var(--spacing-md);
}

.demo-video-container {
  background-color: var(--white);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-medium);
  text-align: left;
}

.demo-video-container h3 {
  font-size: var(--font-size-medium);
  color: var(--primary-dark);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

/* Navigation Dots */
.slider-dots {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--text-light);
  cursor: pointer;
  transition: var(--transition-normal);
}

.dot.active {
  background-color: var(--primary-color);
  transform: scale(1.2);
}

/* Navigation Arrows */
.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--white);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-medium);
  transition: var(--transition-normal);
  z-index: 2;
}

.slider-arrow:hover {
  background-color: var(--primary-color);
  color: var(--white);
}

.prev-arrow {
  left: var(--spacing-md);
}

.next-arrow {
  right: var(--spacing-md);
}

/* Responsive Video Wrapper */
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius-sm);
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.video-description {
  font-size: var(--font-size-normal);
  color: var(--text-color);
  line-height: 1.5;
  margin-top: var(--spacing-md);
}

/* Hide arrows on mobile */
@media screen and (max-width: 768px) {
  .slider-arrow {
    display: none;
  }

  .demo-slide {
    padding: 0;
  }
}

/* Services Section */
.services {
  /* ... existing services styles ... */
}