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

:root {
  /* Theme Colors */
  --color-cream: #fff8ed;
  --color-blue: #2e5eff;
  --color-green: #00d084;
  --color-red: #ff3366;
  --color-black: #0a0a0a;
  --color-purple: #9d4edd;

  /* UI Colors */
  --color-gray-light: #e8e4dd;
  --color-gray: #8a8a8a;
  --color-white: #ffffff;

  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 40px;
  --spacing-xl: 64px;

  /* Border */
  --border-radius: 16px;
  --border-width: 3px;

  /* Typography */
  --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Helvetica Neue", Arial, sans-serif;
  --font-display: "Space Grotesk", -apple-system, BlinkMacSystemFont, sans-serif;
}

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

/* Header Styles */
.site-header {
  background-color: var(--color-white);
  border-bottom: var(--border-width) solid var(--color-black);
  position: sticky;
  top: 0;
  z-index: 1000;
  animation: slideDown 0.5s ease;
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-section .logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  text-decoration: none;
  color: var(--color-black);
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.05);
}

.logo-icon {
  width: 40px;
  height: 40px;
  color: var(--color-blue);
}

.logo-text {
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -1px;
}

.main-nav {
  display: flex;
  gap: var(--spacing-md);
}

.nav-link {
  text-decoration: none;
  color: var(--color-black);
  font-weight: 700;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 3px;
  background-color: var(--color-blue);
  transition: transform 0.3s ease;
}

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

.nav-link:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--color-black);
  transition: all 0.3s ease;
  border-radius: 2px;
}

.mobile-menu {
  display: none;
  background-color: var(--color-white);
  border-top: var(--border-width) solid var(--color-black);
  animation: slideDown 0.3s ease;
}

.mobile-menu.active {
  display: block;
}

.mobile-nav-link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  color: var(--color-black);
  font-weight: 700;
  border-bottom: 2px solid var(--color-gray-light);
  transition: all 0.3s ease;
}

.mobile-nav-link:hover {
  background-color: var(--color-blue);
  color: var(--color-white);
}

/* Main Layout */
.main-wrapper {
  display: flex;
  max-width: 1400px;
  margin: 0 auto;
  gap: var(--spacing-md);
}

/* Sidebar Styles */
.sidebar {
  width: 280px;
  padding: var(--spacing-md);
  position: sticky;
  top: 100px;
  height: fit-content;
  animation: slideInLeft 0.6s ease;
}

@keyframes slideInLeft {
  from {
    transform: translateX(-50px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.sidebar-content {
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-black);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
}

.sidebar-title {
  font-size: 18px;
  font-weight: 900;
  margin-bottom: var(--spacing-sm);
  color: var(--color-purple);
}

.sidebar-section {
  margin-bottom: var(--spacing-md);
}

.sidebar-heading {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-xs);
  color: var(--color-gray);
}

.sidebar-menu {
  list-style: none;
}

.sidebar-link {
  display: block;
  padding: var(--spacing-xs);
  text-decoration: none;
  color: var(--color-black);
  border-radius: 8px;
  transition: all 0.3s ease;
  font-weight: 600;
  font-size: 14px;
}

.sidebar-link:hover {
  background-color: var(--color-green);
  color: var(--color-white);
  transform: translateX(5px);
}

.sidebar-cta {
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm);
  background-color: var(--color-red);
  border-radius: var(--border-radius);
  text-align: center;
}

.sidebar-cta-text {
  color: var(--color-white);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.btn-small {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--color-white);
  color: var(--color-red);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 800;
  font-size: 12px;
  transition: transform 0.3s ease;
}

.btn-small:hover {
  transform: scale(1.05);
}

/* Main Content */
.main-content {
  flex: 1;
  padding: var(--spacing-md);
  animation: fadeIn 0.8s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Hero Section */
.hero {
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-black);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl) var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--color-blue) 0%, transparent 70%);
  opacity: 0.1;
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.1;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.15;
  }
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(40px, 8vw, 80px);
  font-weight: 900;
  line-height: 0.95;
  margin-bottom: var(--spacing-md);
  display: flex;
  flex-direction: column;
}

.title-line {
  display: block;
  animation: slideInRight 0.8s ease backwards;
}

.title-line:nth-child(1) {
  animation-delay: 0.1s;
}

.title-line:nth-child(2) {
  animation-delay: 0.2s;
}

.title-line:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes slideInRight {
  from {
    transform: translateX(-50px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.accent-blue {
  color: var(--color-blue);
}

.hero-subtitle {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  color: var(--color-gray);
  animation: fadeIn 1s ease 0.5s backwards;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 800;
  font-size: 16px;
  transition: all 0.3s ease;
  border: var(--border-width) solid var(--color-black);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary {
  background-color: var(--color-blue);
  color: var(--color-white);
  animation: bounceIn 0.8s ease 0.6s backwards;
}

.btn-primary:hover {
  background-color: var(--color-black);
  transform: translateY(-3px);
  box-shadow: 0 5px 0 var(--color-gray);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-black);
  animation: bounceIn 0.8s ease 0.7s backwards;
}

.btn-secondary:hover {
  background-color: var(--color-green);
  color: var(--color-white);
  transform: translateY(-3px);
}

@keyframes bounceIn {
  0% {
    transform: scale(0.3);
    opacity: 0;
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.hero-visual {
  position: absolute;
  right: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.format-badge {
  padding: var(--spacing-sm) var(--spacing-md);
  border: var(--border-width) solid var(--color-black);
  border-radius: var(--border-radius);
  font-weight: 900;
  font-size: 18px;
  animation: float 3s ease-in-out infinite;
}

.format-badge:nth-child(1) {
  animation-delay: 0s;
}
.format-badge:nth-child(2) {
  animation-delay: 0.5s;
}
.format-badge:nth-child(3) {
  animation-delay: 1s;
}
.format-badge:nth-child(4) {
  animation-delay: 1.5s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.badge-blue {
  background-color: var(--color-blue);
  color: var(--color-white);
}

.badge-green {
  background-color: var(--color-green);
  color: var(--color-white);
}

.badge-red {
  background-color: var(--color-red);
  color: var(--color-white);
}

.badge-purple {
  background-color: var(--color-purple);
  color: var(--color-white);
}

.arrow-container {
  display: flex;
  align-items: center;
}

.arrow-icon {
  width: 60px;
  height: 60px;
  color: var(--color-black);
  animation: arrowSlide 1.5s ease-in-out infinite;
}

@keyframes arrowSlide {
  0%,
  100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(10px);
  }
}

/* Featured Converter */
.featured-converter {
  margin-bottom: var(--spacing-lg);
}

.converter-card {
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-black);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
}

.section-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 900;
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: -1px;
}

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

.file-drop-zone {
  border: 4px dashed var(--color-gray);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  background-color: var(--color-cream);
}

.file-drop-zone:hover {
  border-color: var(--color-blue);
  background-color: var(--color-white);
  transform: scale(1.02);
}

.upload-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-sm);
  color: var(--color-gray);
}

.drop-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-gray);
}

.format-selector {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.format-selector label {
  font-weight: 700;
  font-size: 18px;
}

.format-select {
  flex: 1;
  padding: var(--spacing-sm);
  border: var(--border-width) solid var(--color-black);
  border-radius: var(--border-radius);
  font-weight: 700;
  font-size: 16px;
  background-color: var(--color-white);
  cursor: pointer;
  transition: all 0.3s ease;
}

.format-select:hover {
  border-color: var(--color-purple);
}

.btn-convert {
  background-color: var(--color-green);
  color: var(--color-white);
  padding: var(--spacing-md) var(--spacing-lg);
  border: var(--border-width) solid var(--color-black);
  border-radius: var(--border-radius);
  font-weight: 900;
  font-size: 18px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
}

.btn-convert:hover {
  background-color: var(--color-black);
  transform: scale(1.02);
}

/* Tools Section */
.tools-section {
  margin-bottom: var(--spacing-lg);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.tool-card {
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-black);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  transition: all 0.3s ease;
  cursor: pointer;
}

.tool-card:hover {
  transform: translateY(-5px);
  box-shadow: 8px 8px 0 var(--color-black);
}

.tool-card:nth-child(5n + 1):hover {
  border-color: var(--color-blue);
}

.tool-card:nth-child(5n + 2):hover {
  border-color: var(--color-green);
}

.tool-card:nth-child(5n + 3):hover {
  border-color: var(--color-red);
}

.tool-card:nth-child(5n + 4):hover {
  border-color: var(--color-purple);
}

.tool-card:nth-child(5n):hover {
  border-color: var(--color-black);
}

.tool-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-sm);
}

.tool-title {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: var(--spacing-xs);
}

.tool-desc {
  color: var(--color-gray);
  font-size: 14px;
  margin-bottom: var(--spacing-sm);
}

.tool-link {
  display: inline-block;
  color: var(--color-blue);
  font-weight: 800;
  text-decoration: none;
  transition: all 0.3s ease;
}

.tool-link:hover {
  transform: translateX(5px);
}

/* How It Works Section */
.how-section {
  margin-bottom: var(--spacing-lg);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.step-card {
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-black);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.step-number {
  font-size: 72px;
  font-weight: 900;
  color: var(--color-gray-light);
  position: absolute;
  top: -20px;
  right: 10px;
  z-index: 0;
}

.step-card h3 {
  position: relative;
  z-index: 1;
  font-size: 24px;
  font-weight: 800;
  margin-bottom: var(--spacing-sm);
}

.step-card p {
  position: relative;
  z-index: 1;
  color: var(--color-gray);
}

.step-card:nth-child(1) {
  background-color: var(--color-blue);
  color: var(--color-white);
}

.step-card:nth-child(1) p {
  color: rgba(255, 255, 255, 0.8);
}

.step-card:nth-child(2) {
  background-color: var(--color-green);
  color: var(--color-white);
}

.step-card:nth-child(2) p {
  color: rgba(255, 255, 255, 0.8);
}

.step-card:nth-child(3) {
  background-color: var(--color-purple);
  color: var(--color-white);
}

.step-card:nth-child(3) p {
  color: rgba(255, 255, 255, 0.8);
}

/* Features Section */
.features-section {
  margin-bottom: var(--spacing-lg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.feature-card {
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-black);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: scale(1.05);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  color: var(--color-gray);
  line-height: 1.6;
}

/* Footer Styles */
.site-footer {
  background-color: var(--color-black);
  color: var(--color-white);
  border-top: var(--border-width) solid var(--color-black);
  margin-top: var(--spacing-xl);
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md) var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-title {
  font-size: 32px;
  font-weight: 900;
  margin-bottom: var(--spacing-sm);
}

.footer-description {
  color: var(--color-gray);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

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

.social-link {
  width: 40px;
  height: 40px;
  border: var(--border-width) solid var(--color-white);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  transition: all 0.3s ease;
}

.social-link:hover {
  background-color: var(--color-blue);
  border-color: var(--color-blue);
  transform: translateY(-3px);
}

.social-link svg {
  width: 20px;
  height: 20px;
}

.footer-heading {
  font-size: 16px;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: var(--color-gray);
  text-decoration: none;
  transition: all 0.3s ease;
}

.footer-links a:hover {
  color: var(--color-blue);
  transform: translateX(5px);
  display: inline-block;
}

.footer-bottom {
  border-top: 2px solid var(--color-gray);
  padding-top: var(--spacing-md);
  text-align: center;
  color: var(--color-gray);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .sidebar {
    display: none;
  }

  .main-wrapper {
    display: block;
  }

  .hero-visual {
    position: static;
    transform: none;
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .hero {
    padding: var(--spacing-lg) var(--spacing-md);
  }

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

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

  .btn {
    text-align: center;
  }

  .tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-sm);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .format-selector {
    flex-direction: column;
    align-items: stretch;
  }

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

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

@media (max-width: 480px) {
  .hero-title {
    font-size: 32px;
  }

  .section-title {
    font-size: 28px;
  }

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

  .format-badge {
    font-size: 14px;
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.hidden {
  display: none;
}

/* Scroll Animation */
.fade-in {
  animation: fadeIn 0.6s ease;
}

.slide-up {
  animation: slideUp 0.6s ease;
}

@keyframes slideUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Adding notification toast styles for conversion feedback */
.notification {
  position: fixed;
  top: 100px;
  right: -400px;
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-black);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  min-width: 300px;
  max-width: 400px;
  font-weight: 700;
  font-size: 16px;
  z-index: 9999;
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.2);
  transition: right 0.3s ease;
}

.notification.show {
  right: var(--spacing-md);
}

.notification-success {
  background-color: var(--color-green);
  color: var(--color-white);
  border-color: var(--color-black);
}

.notification-error {
  background-color: var(--color-red);
  color: var(--color-white);
  border-color: var(--color-black);
}

.notification-info {
  background-color: var(--color-blue);
  color: var(--color-white);
  border-color: var(--color-black);
}

@media (max-width: 480px) {
  .notification {
    min-width: 250px;
    max-width: calc(100vw - 32px);
    font-size: 14px;
    padding: var(--spacing-sm);
  }
}

/* Tool Page Styles */
.tool-header {
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-black);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl) var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

.tool-header::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--color-blue) 0%, transparent 70%);
  opacity: 0.1;
  animation: pulse 4s ease-in-out infinite;
}

.tool-page-title {
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 900;
  margin-bottom: var(--spacing-sm);
  position: relative;
  z-index: 1;
  text-transform: uppercase;
  letter-spacing: -1px;
}

.tool-subtitle {
  font-size: 18px;
  color: var(--color-gray);
  line-height: 1.6;
  position: relative;
  z-index: 1;
  max-width: 600px;
}

.accent-red {
  color: var(--color-red);
}

.accent-green {
  color: var(--color-green);
}

.accent-purple {
  color: var(--color-purple);
}

/* Converter Section */
.converter-section {
  margin-bottom: var(--spacing-lg);
}

.drop-subtext {
  font-size: 14px;
  color: var(--color-gray);
  margin-top: var(--spacing-xs);
}

/* Preview Container */
.preview-container {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-black);
  border-radius: var(--border-radius);
}

.preview-title {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: var(--spacing-sm);
}

.files-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}