/* Variables */
:root {
  /* Colors */
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --secondary-color: #ec4899;
  --accent-color: #f59e0b;
  --dark-bg: #0f172a;
  --light-bg: #f8fafc;
  --surface: #1e293b;
  --border: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --success: #10b981;
  --error: #ef4444;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  /* Transitions */
  --transition-base: 0.3s ease;
  --transition-fast: 0.15s ease;
}

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

html {
  scroll-behavior: smooth;
}

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

/* Password Protection */
.password-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity var(--transition-base);
}

.password-overlay.hidden {
  display: none;
}

.password-overlay.active {
  opacity: 1;
}

.password-container {
  width: 100%;
  max-width: 400px;
  padding: var(--spacing-lg);
}

.password-content {
  text-align: center;
}

.password-content h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, #6366f1, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.password-content .subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-lg);
}

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

.password-form input {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--border);
  background-color: var(--surface);
  color: var(--text-primary);
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-sans);
  transition: border-color var(--transition-base);
}

.password-form input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.password-form input::placeholder {
  color: var(--text-secondary);
}

.password-form button {
  padding: var(--spacing-sm) var(--spacing-md);
  background: linear-gradient(135deg, #6366f1, #ec4899);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.password-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.password-form button:active {
  transform: translateY(0);
}

.error-message {
  color: var(--error);
  font-size: 0.875rem;
  opacity: 0;
  transition: opacity var(--transition-base);
  height: 0;
  overflow: hidden;
}

.error-message.show {
  opacity: 1;
  height: auto;
}

/* Main Content */
.main-content {
  opacity: 1;
  transition: opacity var(--transition-base);
}

.main-content.hidden {
  display: none;
}

.main-content {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main {
  flex: 1;
}

/* Header & Navigation */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
}

.logo a {
  text-decoration: none;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-text {
  background: linear-gradient(135deg, #6366f1, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-base);
}

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

/* Hero Section */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  min-height: calc(100vh - 70px);
}

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

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, #6366f1, #ec4899, #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 500px;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, #6366f1, #ec4899);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

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

.btn-secondary:hover {
  background-color: rgba(99, 102, 241, 0.1);
}

.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Small Hero (for secondary pages) */
.hero-small {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.hero-small .hero-content {
  z-index: 1;
}

.hero-small .hero-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.hero-small .hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
}

.animated-bg {
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle at 30% 40%, #6366f1, transparent 50%);
  border-radius: 50%;
  filter: blur(40px);
  animation: float 6s ease-in-out infinite;
}

.animated-bg::before {
  content: '';
  position: absolute;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle at 70% 60%, #ec4899, transparent 50%);
  border-radius: 50%;
  filter: blur(40px);
  animation: float-reverse 8s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) translateX(0px); }
  50% { transform: translateY(-20px) translateX(20px); }
}

@keyframes float-reverse {
  0%, 100% { transform: translateY(0px) translateX(0px); }
  50% { transform: translateY(20px) translateX(-20px); }
}

/* Sections */
.section {
  padding: var(--spacing-2xl) var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.container {
  width: 100%;
}

.section h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-xl);
  text-align: center;
  background: linear-gradient(135deg, #6366f1, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-intro {
  font-size: 1.125rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.feature-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
}

.feature-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(99, 102, 241, 0.2);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.8;
}

/* About Section */
.about-section {
  background-color: rgba(30, 41, 59, 0.5);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.product-card {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #6366f1, #ec4899);
  transform: scaleX(0);
  transition: transform var(--transition-base);
  transform-origin: left;
}

.product-card:hover::before {
  transform: scaleX(1);
}

.product-card:hover {
  transform: translateY(-10px);
  border-color: var(--primary-color);
}

.product-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
  display: block;
}

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

.product-card p {
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Manifesto Section */
.manifesto-section {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(236, 72, 153, 0.05));
  border-top: 1px solid var(--border);
}

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

.manifesto p {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
  line-height: 2;
}

.manifesto strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Contact Section */
.contact-section {
  background-color: rgba(30, 41, 59, 0.5);
  border-top: 1px solid var(--border);
}

.contact-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.contact-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--spacing-lg);
  text-align: center;
}

.contact-card h3 {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.contact-card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* Projects Section (homepage) */
.projects-section {
  background-color: rgba(30, 41, 59, 0.5);
  border-top: 1px solid var(--border);
}

/* Projects Page Section */
.projects-page-section {
  min-height: 60vh;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.project-item {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(236, 72, 153, 0.08));
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-link {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.project-item:hover {
  border-color: var(--primary-color);
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(99, 102, 241, 0.2);
}

.project-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.project-title {
  font-size: 1.4rem;
  color: var(--text-primary);
  margin: 0;
  flex: 1;
}

.project-status {
  display: inline-block;
  padding: 0.4rem 0.8rem;
  background: rgba(99, 102, 241, 0.2);
  color: var(--primary-color);
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}

.project-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(236, 72, 153, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border);
}

.project-placeholder {
  font-size: 4rem;
  opacity: 0.7;
}

.project-description {
  padding: var(--spacing-lg);
  color: var(--text-secondary);
  line-height: 1.8;
  flex: 1;
}

.project-meta {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  border-top: 1px solid var(--border);
  padding-top: var(--spacing-lg);
}

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

.tag {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  background-color: rgba(236, 72, 153, 0.1);
  color: var(--secondary-color);
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
}

.project-timeline {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
  font-style: italic;
}

/* CTA Section */
.cta-section {
  text-align: center;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cta-section h2 {
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* Back to Home Section */
.back-to-home-section {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  border-top: 1px solid var(--border);
}

/* Footer */
.footer {
  background-color: var(--surface);
  border-top: 1px solid var(--border);
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  margin-top: auto;
}

.footer-content p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.footer-note {
  font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: var(--spacing-xl) var(--spacing-lg);
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-small .hero-title {
    font-size: 1.75rem;
  }

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

  .hero-subtitle {
    font-size: 1.25rem;
  }

  .nav-links {
    gap: var(--spacing-md);
  }

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

  .section h2 {
    font-size: 2rem;
  }

  .password-content h1 {
    font-size: 2rem;
  }

  .hero-visual {
    min-height: 250px;
  }

  .features-grid,
  .products-grid,
  .projects-grid,
  .contact-content {
    grid-template-columns: 1fr;
  }

  .project-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .project-status {
    width: 100%;
    text-align: center;
  }

  .manifesto p {
    font-size: 1rem;
  }

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

  .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .nav-container {
    height: 60px;
    padding: 0 var(--spacing-md);
  }

  .logo {
    font-size: 1.2rem;
  }

  .nav-links {
    gap: var(--spacing-sm);
    font-size: 0.9rem;
  }

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

  .hero-title {
    font-size: 1.75rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

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

  .section h2 {
    font-size: 1.5rem;
  }

  .password-container {
    padding: var(--spacing-md);
  }

  .password-content h1 {
    font-size: 1.5rem;
  }

  .feature-icon,
  .product-icon {
    font-size: 2.5rem;
  }
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .password-overlay {
    display: none;
  }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background-color: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
  background-color: var(--border);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--primary-color);
}