/**
 * AI Automation Pro - Component Styles
 * Reusable component patterns for dark theme
 */

/* ============================================
   BASE STYLES
   ============================================ */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  color: var(--color-text-secondary);
  background-color: var(--color-bg-deep);
  overflow-x: hidden;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.875rem 2rem;
  font-family: var(--font-sans);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-speed-base) var(--ease-default);
  white-space: nowrap;
  position: relative;
  z-index: 10;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}

/* Primary Button */
.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-glow-subtle);
}

.btn-primary:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-glow);
}

.btn-primary:active {
  transform: scale(0.98);
}

/* Secondary Button */
.btn-secondary {
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.3);
  color: var(--color-accent-primary);
}

.btn-secondary:hover {
  background: rgba(0, 240, 255, 0.15);
  border-color: rgba(0, 240, 255, 0.5);
}

/* Ghost Button */
.btn-ghost {
  background: transparent;
  border: 1px solid var(--color-border-default);
  color: var(--color-text-secondary);
}

.btn-ghost:hover {
  border-color: var(--color-accent-primary);
  color: var(--color-text-primary);
}

/* Button Sizes */
.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: var(--font-size-body-sm);
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: var(--font-size-body-lg);
}

/* ============================================
   CARDS
   ============================================ */

.card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-speed-slow) var(--ease-out);
  position: relative;
  z-index: 2;
  /* Prevent scroll blocking */
  touch-action: manipulation;
  -webkit-overflow-scrolling: touch;
}

.card:hover {
  border-color: var(--color-border-default);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* Prevent scroll issues on mobile */
@media (max-width: 767px) {
  .card {
    /* Disable hover transforms on mobile to prevent scroll issues */
    transition: border-color var(--transition-speed-base) var(--ease-default);
  }
  
  .card:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
  }
}

.card-header {
  margin-bottom: var(--space-6);
}

.card-title {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.card-description {
  color: var(--color-text-secondary);
}

.card-body {
  margin-bottom: var(--space-6);
}

.card-footer {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border-subtle);
}

/* Card with Glow */
.card-glow {
  position: relative;
}

.card-glow::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-xl);
  padding: 1px;
  background: var(--gradient-primary);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-speed-slow) var(--ease-default);
  pointer-events: none;
  z-index: -1;
}

.card-glow:hover::before {
  opacity: 0.5;
}

/* ============================================
   INPUTS
   ============================================ */

.input,
.textarea,
.select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: var(--font-size-body);
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  transition: all var(--transition-speed-base) var(--ease-default);
}

.input::placeholder,
.textarea::placeholder {
  color: var(--color-text-tertiary);
}

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  background: rgba(0, 240, 255, 0.05);
  box-shadow: var(--shadow-glow-subtle);
}

.textarea {
  min-height: 120px;
  resize: vertical;
}

.input-group {
  margin-bottom: var(--space-6);
}

.label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--font-size-body-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

/* ============================================
   LINKS
   ============================================ */

.link {
  color: var(--color-accent-glow);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: all var(--transition-speed-fast) var(--ease-default);
  position: relative;
  z-index: 10;
}

.link:hover {
  color: var(--color-accent-primary);
  text-decoration: underline;
}

.link:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ============================================
   NAVIGATION
   ============================================ */

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 4.5rem;
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: var(--blur-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding-mobile);
}

@media (min-width: 1024px) {
  .nav {
    padding-inline: var(--container-padding-desktop);
  }
}

.nav-logo {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  text-decoration: none;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
}

@media (min-width: 768px) {
  .nav-menu {
    gap: var(--space-8);
  }
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1002;
  position: relative;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Menu Styles */
@media (max-width: 767px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .nav-logo {
    font-size: 1rem;
  }

  .nav-menu {
    position: fixed;
    top: 4.5rem;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: var(--blur-md);
    border-bottom: 1px solid var(--color-border-default);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0;
    height: 0;
    opacity: 0;
    visibility: hidden;
    transition: height 0.3s ease, opacity 0.3s ease;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    z-index: 999;
  }

  .nav-menu.active {
    height: auto;
    max-height: calc(100vh - 4.5rem);
    padding: 1rem;
    opacity: 1;
    visibility: visible;
    overflow-y: auto;
  }

  .nav-menu .nav-item {
    width: 100%;
  }

  .nav-menu .nav-link {
    display: block;
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border-subtle);
  }

  .nav-menu .nav-item:last-child .btn {
    width: 100%;
    margin-top: 0.5rem;
  }

  /* Prevent body scroll when menu is open */
  body.menu-open {
    overflow: hidden;
  }
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: var(--space-2) var(--space-1);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-speed-fast) var(--ease-default);
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  box-shadow: var(--shadow-glow-subtle);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: min(100vh, 900px);
  padding-block: var(--section-padding-mobile);
  background: var(--color-bg-deep);
  overflow: hidden;
  width: 100%;
  max-width: 100vw;
}

@media (min-width: 1024px) {
  .hero {
    padding-block: var(--section-padding-desktop);
  }
}

/* Hero Background Gradient */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 100%;
  background: var(--gradient-radial);
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 900px;
  text-align: center;
  padding-inline: 1.5rem;
  width: 100%;
}

.hero-title {
  margin-bottom: var(--space-6);
  color: var(--color-text-primary);
}

.hero-subtitle {
  margin-bottom: var(--space-8);
  font-size: var(--font-size-body-lg);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin-inline: auto;
  padding-inline: 0.5rem;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

@media (max-width: 767px) {
  .hero-cta {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta .btn {
    width: 100%;
    max-width: 320px;
  }
}

/* ============================================
   ABSTRACT ELEMENTS
   ============================================ */

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 1;
}

.gradient-orb-1 {
  top: 10%;
  left: 10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.08), transparent 70%);
}

.gradient-orb-2 {
  bottom: 20%;
  right: 10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 0, 255, 0.06), transparent 70%);
}

.gradient-orb-3 {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 255, 159, 0.04), transparent 70%);
}

/* ============================================
   SECTIONS
   ============================================ */

.section {
  position: relative;
  z-index: 1;
  background: var(--color-bg-deep);
}

.section.bg-mid {
  background: var(--color-bg-mid);
}

.section.bg-deep {
  background: var(--color-bg-deep);
}

/* ============================================
   GRID LAYOUTS
   ============================================ */

.grid {
  display: grid;
  gap: var(--grid-gap-mobile);
}

@media (min-width: 1024px) {
  .grid {
    gap: var(--grid-gap-desktop);
  }
}

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

.grid-cols-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-cols-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

@media (min-width: 1024px) {
  .grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   FEATURE CARD
   ============================================ */

.feature-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--gradient-primary);
  box-shadow: var(--shadow-glow-subtle);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-text-primary);
}

.feature-title {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.feature-description {
  color: var(--color-text-secondary);
}

/* ============================================
   SECTION DIVIDER
   ============================================ */

.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    rgba(0, 240, 255, 0.2) 50%,
    transparent
  );
}

/* ============================================
   BADGE
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.75rem;
  font-size: var(--font-size-body-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.3);
  color: var(--color-accent-primary);
}

/* ============================================
   LOADING STATES
   ============================================ */

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-elevated) 0%,
    rgba(0, 240, 255, 0.05) 50%,
    var(--color-bg-elevated) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ============================================
   FOCUS STATES
   ============================================ */

*:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fade-in 600ms var(--ease-out) both;
}

.animate-slide-up {
  animation: slide-up 600ms var(--ease-out) both;
}

/* Stagger Animation Delays */
.animate-delay-100 { animation-delay: 100ms; }
.animate-delay-200 { animation-delay: 200ms; }
.animate-delay-300 { animation-delay: 300ms; }
.animate-delay-400 { animation-delay: 400ms; }
.animate-delay-500 { animation-delay: 500ms; }
/* ============================================
   FAQ ACCORDION
   ============================================ */

.faq-item {
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: var(--color-accent-primary);
  transform: translateY(-2px);
}

.faq-item.active {
  border-color: var(--color-accent-primary);
  background: rgba(0, 240, 255, 0.02);
}

.faq-question {
  user-select: none;
}

.faq-icon {
  user-select: none;
}