/* ===================================
   Antikythera Technologies Button System
   Enhanced with Glass Morphism Effects
   =================================== */

/* Import design system variables */
@import url('design-system.css');

/* ===================================
   Base Button Styles
   =================================== */

/* Reset and base button styles */
button,
.button,
[role="button"] {
  all: unset;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-weight: var(--font-medium);
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  position: relative;
  isolation: isolate;
}

/* Default button - Glass morphism style */
.button,
.main__button,
.actions-header__button,
.plan__button,
.success-button,
.about__button,
.services__button,
.page__button,
.outro__button,
.services-page__button,
.item-services__button,
.contact-form button[type="submit"],
.proposal-form button[type="submit"],
.form__inner button[type="submit"] {
  padding: var(--space-md) var(--space-xl);
  background: var(--glass-bg-secondary);
  backdrop-filter: blur(var(--blur-sm));
  -webkit-backdrop-filter: blur(var(--blur-sm));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  color: var(--tn-text-primary);
  font-size: var(--text-base);
  transition: all var(--transition-base);
  overflow: hidden;
  z-index: 1;
}

/* Button hover state */
.button:hover,
.main__button:hover,
.actions-header__button:hover,
.plan__button:hover,
.success-button:hover,
.about__button:hover,
.services__button:hover,
.page__button:hover,
.outro__button:hover,
.services-page__button:hover,
.item-services__button:hover,
.contact-form button[type="submit"]:hover,
.proposal-form button[type="submit"]:hover,
.form__inner button[type="submit"]:hover {
  background: var(--glass-bg-light);
  border-color: var(--glass-border-active);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md), var(--glow-blue);
}

/* Button active state */
.button:active,
.main__button:active,
.actions-header__button:active,
.plan__button:active,
.success-button:active,
.about__button:active,
.services__button:active,
.page__button:active,
.outro__button:active,
.services-page__button:active,
.item-services__button:active,
.contact-form button[type="submit"]:active,
.proposal-form button[type="submit"]:active,
.form__inner button[type="submit"]:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Button ripple effect */
.button::before,
.main__button::before,
.actions-header__button::before,
.plan__button::before,
.success-button::before,
.about__button::before,
.services__button::before,
.page__button::before,
.outro__button::before,
.services-page__button::before,
.item-services__button::before,
.contact-form button[type="submit"]::before,
.proposal-form button[type="submit"]::before,
.form__inner button[type="submit"]::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: radial-gradient(circle, 
    rgba(122, 162, 247, 0.3) 0%,
    transparent 70%
  );
  transform: translate(-50%, -50%);
  transition: width var(--transition-slow), height var(--transition-slow);
  z-index: -1;
}

.button:hover::before,
.main__button:hover::before,
.actions-header__button:hover::before,
.plan__button:hover::before,
.success-button:hover::before,
.about__button:hover::before,
.services__button:hover::before,
.page__button:hover::before,
.outro__button:hover::before,
.services-page__button:hover::before,
.item-services__button:hover::before,
.contact-form button[type="submit"]:hover::before,
.proposal-form button[type="submit"]:hover::before,
.form__inner button[type="submit"]:hover::before {
  width: 300%;
  height: 300%;
}

/* ===================================
   Button Variants
   =================================== */

/* Primary button - Blue gradient */
.button-primary {
  background: linear-gradient(135deg, 
    rgba(122, 162, 247, 0.2) 0%, 
    rgba(125, 207, 255, 0.2) 100%
  );
  border-color: rgba(122, 162, 247, 0.3);
  color: var(--tn-blue);
}

.button-primary:hover {
  background: linear-gradient(135deg, 
    rgba(122, 162, 247, 0.3) 0%, 
    rgba(125, 207, 255, 0.3) 100%
  );
  box-shadow: var(--shadow-md), var(--glow-blue);
}

/* Secondary button - Purple gradient */
.button-secondary {
  background: linear-gradient(135deg, 
    rgba(187, 154, 247, 0.2) 0%, 
    rgba(255, 143, 163, 0.2) 100%
  );
  border-color: rgba(187, 154, 247, 0.3);
  color: var(--tn-purple);
}

.button-secondary:hover {
  background: linear-gradient(135deg, 
    rgba(187, 154, 247, 0.3) 0%, 
    rgba(255, 143, 163, 0.3) 100%
  );
  box-shadow: var(--shadow-md), var(--glow-purple);
}

/* Success button - Green */
.button-success,
.success-button {
  background: rgba(158, 206, 106, 0.2);
  border-color: rgba(158, 206, 106, 0.3);
  color: var(--tn-green);
}

.button-success:hover,
.success-button:hover {
  background: rgba(158, 206, 106, 0.3);
  box-shadow: var(--shadow-md), 0 0 20px rgba(158, 206, 106, 0.3);
}

/* Danger button - Red */
.button-danger {
  background: rgba(247, 118, 142, 0.2);
  border-color: rgba(247, 118, 142, 0.3);
  color: var(--tn-red);
}

.button-danger:hover {
  background: rgba(247, 118, 142, 0.3);
  box-shadow: var(--shadow-md), 0 0 20px rgba(247, 118, 142, 0.3);
}

/* Ghost button - Transparent */
.button-ghost {
  background: transparent;
  border-color: var(--glass-border);
  color: var(--tn-text-primary);
}

.button-ghost:hover {
  background: var(--glass-bg-light);
  border-color: var(--glass-border-active);
}

/* Solid button - Full color */
.button-solid {
  background: var(--tn-blue);
  border-color: var(--tn-blue);
  color: white;
  backdrop-filter: none;
}

.button-solid:hover {
  background: var(--tn-cyan);
  border-color: var(--tn-cyan);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--glow-cyan);
}

/* ===================================
   Button Sizes
   =================================== */

.button-sm {
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-sm);
}

.button-lg {
  padding: var(--space-lg) var(--space-2xl);
  font-size: var(--text-lg);
}

.button-xl {
  padding: var(--space-xl) var(--space-3xl);
  font-size: var(--text-xl);
}

/* ===================================
   Button States
   =================================== */

.button:disabled,
.button[disabled],
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.button-loading {
  color: transparent;
  pointer-events: none;
}

.button-loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  top: 50%;
  left: 50%;
  margin-left: -10px;
  margin-top: -10px;
  border: 2px solid var(--glass-border);
  border-top-color: var(--tn-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* ===================================
   Button Groups
   =================================== */

.button-group {
  display: inline-flex;
  gap: -1px;
  background: var(--glass-bg-secondary);
  padding: var(--space-xs);
  border-radius: var(--radius-full);
  backdrop-filter: blur(var(--blur-sm));
  -webkit-backdrop-filter: blur(var(--blur-sm));
}

.button-group .button {
  border-radius: var(--radius-full);
  backdrop-filter: none;
  background: transparent;
  border: none;
}

.button-group .button.active {
  background: var(--glass-bg-light);
  color: var(--tn-blue);
}

/* ===================================
   Icon Buttons
   =================================== */

.button-icon {
  padding: var(--space-md);
  aspect-ratio: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.button-icon svg {
  width: 20px;
  height: 20px;
}

.button-icon-text {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.button-icon-text svg {
  width: 18px;
  height: 18px;
}

/* ===================================
   Floating Action Button
   =================================== */

.fab {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--tn-blue);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  z-index: var(--z-sticky);
}

.fab:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl), var(--glow-blue);
}

.fab svg {
  width: 24px;
  height: 24px;
}

/* ===================================
   Special Button Styles
   =================================== */

/* Outro button specific styling */
.outro__button {
  background: linear-gradient(135deg, 
    rgba(122, 162, 247, 0.3) 0%, 
    rgba(125, 207, 255, 0.3) 100%
  );
  border-color: rgba(122, 162, 247, 0.4);
  color: white;
  font-weight: var(--font-semibold);
}

.outro__button:hover {
  background: linear-gradient(135deg, 
    rgba(122, 162, 247, 0.4) 0%, 
    rgba(125, 207, 255, 0.4) 100%
  );
  border-color: var(--tn-blue);
}

/* Form submit buttons */
.contact-form button[type="submit"],
.proposal-form button[type="submit"],
.form__inner button[type="submit"] {
  width: 100%;
  margin-top: var(--space-lg);
  background: linear-gradient(135deg, var(--tn-blue) 0%, var(--tn-cyan) 100%);
  border: none;
  color: white;
  font-weight: var(--font-semibold);
}

.contact-form button[type="submit"]:hover,
.proposal-form button[type="submit"]:hover,
.form__inner button[type="submit"]:hover {
  background: linear-gradient(135deg, var(--tn-cyan) 0%, var(--tn-blue) 100%);
}

/* ===================================
   Responsive Adjustments
   =================================== */

@media (max-width: 768px) {
  .button,
  .button-lg {
    padding: var(--space-md) var(--space-lg);
    font-size: var(--text-base);
  }
  
  .button-xl {
    padding: var(--space-lg) var(--space-xl);
    font-size: var(--text-lg);
  }
  
  .fab {
    width: 48px;
    height: 48px;
    bottom: var(--space-lg);
    right: var(--space-lg);
  }
  
  .fab svg {
    width: 20px;
    height: 20px;
  }
}

/* ===================================
   Animation Keyframes
   =================================== */

@keyframes spin {
  to { transform: rotate(360deg); }
}