/*
 * Modern Component Styles
 * Buttons, Cards, Forms, Navigation - Tech-Forward Professional
 */

/* ========================================
   BUTTONS - Modern Design
   ======================================== */

.btn-modern {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  line-height: 1;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  min-height: var(--btn-height-md);
}

.btn-modern:hover {
  transform: translateY(-2px);
}

.btn-modern:active {
  transform: translateY(0);
}

.btn-modern:focus-visible {
  outline: 3px solid var(--color-primary-400);
  outline-offset: 3px;
}

/* Button sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  min-height: var(--btn-height-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  min-height: var(--btn-height-lg);
}

.btn-xl {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-xl);
  min-height: var(--btn-height-xl);
}

/* Button variants */
.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  box-shadow: var(--shadow-xl), var(--shadow-primary);
}

.btn-accent {
  background: var(--gradient-accent);
  color: white;
  box-shadow: var(--shadow-accent);
}

.btn-success {
  background: var(--gradient-success);
  color: white;
  box-shadow: var(--shadow-success);
}

.btn-ghost {
  background: transparent;
  color: var(--color-primary-500);
  border: 2px solid var(--color-primary-500);
}

.btn-ghost:hover {
  background: var(--color-primary-500);
  color: white;
}

/* ========================================
   CARDS - Modern Glass Design
   ======================================== */

.card-modern {
  background: var(--glass-bg-medium);
  backdrop-filter: blur(var(--glass-blur-md)) saturate(180%);
  border: 1px solid var(--glass-border-light);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-glass);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card-modern::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  opacity: 0%;
  transition: opacity var(--transition-base);
}

.card-modern:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-glass-hover), var(--shadow-xl);
  border-color: var(--glass-border-medium);
}

.card-modern:hover::before {
  opacity: 100%;
}

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

.card-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  margin: 0 0 var(--space-2) 0;
  background: var(--gradient-primary);
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.card-subtitle {
  font-size: var(--text-sm);
  color: var(--color-neutral-400);
  margin: 0;
}

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

.card-footer {
  display: flex;
  gap: var(--space-3);
  padding-top: var(--space-6);
  border-top: 1px solid var(--glass-border-light);
}

/* ========================================
   FORMS - Modern Input Design
   ======================================== */

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

.form-group {
  position: relative;
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-neutral-300);
  margin-bottom: var(--space-2);
  transition: color var(--transition-base);
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-family: var(--font-sans);
  background: var(--glass-bg-light);
  backdrop-filter: blur(var(--glass-blur-sm));
  border: 2px solid var(--glass-border-light);
  border-radius: var(--radius-lg);
  color: white;
  transition: all var(--transition-base);
}

.form-input::placeholder {
  color: rgb(255 255 255 / 75%);
}

.form-input:focus {
  outline: none;
  background: var(--glass-bg-medium);
  border-color: var(--color-primary-400);
  box-shadow: 0 0 0 4px rgb(14 165 233 / 15%);
}

.form-input:focus + .form-label {
  color: var(--color-primary-400);
}

/* Floating label variant */
.form-floating {
  position: relative;
}

.form-floating .form-input {
  padding-top: var(--space-5);
  padding-bottom: var(--space-2);
}

.form-floating .form-label {
  position: absolute;
  top: var(--space-3);
  left: var(--space-4);
  margin: 0;
  pointer-events: none;
  transition: all var(--transition-base);
}

.form-floating .form-input:focus + .form-label,
.form-floating .form-input:not(:placeholder-shown) + .form-label {
  top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-primary-400);
}

/* ========================================
   NAVIGATION - Glassmorphic Header
   ======================================== */

.nav-modern {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--glass-bg-medium);
  backdrop-filter: blur(var(--glass-blur-lg)) saturate(180%);
  border-bottom: 1px solid var(--glass-border-light);
  box-shadow: 0 4px 24px rgb(0 0 0 / 8%);
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
}

.nav-modern.scrolled {
  background: var(--glass-bg-strong);
  box-shadow: 0 8px 32px rgb(0 0 0 / 12%);
}

.nav-container {
  max-width: var(--container-2xl);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  background: var(--gradient-primary);
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: var(--space-6);
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--color-neutral-200);
  text-decoration: none;
  font-weight: var(--font-medium);
  transition: color var(--transition-base);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: white;
}

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

/* ========================================
   BADGES - Modern Status Indicators
   ======================================== */

.badge-modern {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border-radius: var(--radius-full);
  background: var(--glass-bg-light);
  backdrop-filter: blur(var(--glass-blur-sm));
  border: 1px solid var(--glass-border-light);
}

.badge-success {
  background: rgb(16 185 129 / 20%);
  border-color: var(--color-success-500);
  color: var(--color-success-300);
}

.badge-primary {
  background: rgb(14 165 233 / 20%);
  border-color: var(--color-primary-500);
  color: var(--color-primary-300);
}

.badge-accent {
  background: rgb(245 158 11 / 20%);
  border-color: var(--color-accent-500);
  color: var(--color-accent-300);
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
  .card-modern {
    padding: var(--space-6);
  }

  .nav-links {
    gap: var(--space-3);
  }

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