/* ===================================
   iOS 26 Glassmorphism Design System
   Created: October 2025
   =================================== */

/* ===================================
   CORE RESET & TYPOGRAPHY
   =================================== */
*,
*::after,
*::before {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   GLASSMORPHIC BACKGROUND
   =================================== */
.glass-background {
  background: linear-gradient(135deg, #5a6fd8 0%, #7d5ba6 100%);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Animated background orbs for depth */
.glass-background::before,
.glass-background::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: float 20s infinite ease-in-out;
  pointer-events: none;
}

.glass-background::before {
  width: 400px;
  height: 400px;
  background: #5a6fd8;
  top: -100px;
  left: -100px;
  animation-delay: 0s;
}

.glass-background::after {
  width: 350px;
  height: 350px;
  background: #7d5ba6;
  bottom: -100px;
  right: -100px;
  animation-delay: 10s;
}

@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -30px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
}

/* ===================================
   GLASSMORPHIC CONTAINERS
   =================================== */
.glass-container {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(40px) saturate(180%);
  -webkit-backdrop-filter: blur(40px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3),
    0 1px 0 rgba(255, 255, 255, 0.4) inset, 0 -1px 0 rgba(0, 0, 0, 0.2) inset;
  position: relative;
  transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.glass-container-light {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(30px) saturate(160%);
  -webkit-backdrop-filter: blur(30px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 16px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2),
    0 1px 0 rgba(255, 255, 255, 0.5) inset;
  transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.glass-card {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2),
    0 1px 0 rgba(255, 255, 255, 0.3) inset;
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  transform: scale(1);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.18);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25),
    0 2px 0 rgba(255, 255, 255, 0.4) inset;
  transform: translateY(-4px) scale(1.01);
}

/* ===================================
   SCROLLABLE CONTAINERS
   =================================== */
.glass-scrollable {
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

/* Custom scrollbar styling for webkit browsers */
.glass-scrollable::-webkit-scrollbar {
  width: 8px;
}

.glass-scrollable::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
}

.glass-scrollable::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  transition: background 0.3s ease;
}

.glass-scrollable::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* ===================================
   FORM ELEMENTS
   =================================== */
.glass-input {
  width: 100%;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 12px;
  font-size: 0.95rem;
  color: #fff;
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  font-family: inherit;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transform: scale(1);
}

.glass-input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18),
    0 0 0 3px rgba(255, 255, 255, 0.15), 0 0 20px rgba(255, 255, 255, 0.1);
  transform: translateY(-2px) scale(1.01);
}

.glass-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
  transition: all 0.3s ease;
}

.glass-input:focus::placeholder {
  color: rgba(255, 255, 255, 0.7);
  transform: translateX(5px);
}

.glass-input:hover {
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-1px) scale(1.005);
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.12);
}

.glass-input:active {
  transform: scale(0.995);
  transition: all 0.2s ease;
}

/* Validation states */
.glass-input:invalid:not(:placeholder-shown) {
  border-color: rgba(255, 100, 100, 0.5);
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px);
  }
  75% {
    transform: translateX(5px);
  }
}

/* Browser validation popup/bubble styling - Webkit/Chrome */
input::-webkit-validation-bubble-message {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 16px;
  padding: 16px 20px;
  font-size: 0.9rem;
  color: #fff;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3),
    0 1px 0 rgba(255, 255, 255, 0.4) inset;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Firefox validation popup styling */
input::-moz-validation-bubble-message {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(30px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 16px;
  padding: 16px 20px;
  font-size: 0.9rem;
  color: #fff;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3),
    0 1px 0 rgba(255, 255, 255, 0.4) inset;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Webkit validation bubble arrow */
input::-webkit-validation-bubble-arrow {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

input::-webkit-validation-bubble-top-outer-arrow,
input::-webkit-validation-bubble-top-inner-arrow {
  border-bottom-color: rgba(255, 255, 255, 0.3);
}

input:-moz-ui-invalid {
  box-shadow: 0 0 0 3px rgba(255, 100, 100, 0.2);
}

input[type="text"]:invalid,
input[type="email"]:invalid,
input[type="password"]:invalid,
input[type="tel"]:invalid {
  background: rgba(255, 255, 255, 0.15);
}

/* ===================================
   BUTTONS
   =================================== */
.glass-btn {
  padding: 14px 28px;
  background: rgba(255, 255, 255, 0.9);
  color: #5a6fd8;
  border: none;
  border-radius: 14px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2),
    0 1px 0 rgba(255, 255, 255, 0.8) inset;
  position: relative;
  overflow: hidden;
  transform: scale(1);
}

.glass-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: left 0.5s ease;
}

.glass-btn::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transform: translate(-50%, -50%);
  transition: width 0.7s cubic-bezier(0.34, 1.56, 0.64, 1),
    height 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.glass-btn:hover::before {
  left: 100%;
}

.glass-btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25),
    0 2px 0 rgba(255, 255, 255, 1) inset, 0 0 20px rgba(255, 255, 255, 0.3);
  filter: brightness(1.05);
}

.glass-btn:active {
  transform: translateY(1px) scale(0.96);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15),
    0 1px 0 rgba(255, 255, 255, 1) inset;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.glass-btn:active::after {
  width: 300px;
  height: 300px;
  transition: width 0.4s ease-out, height 0.4s ease-out;
}

.glass-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  filter: none;
}

.glass-btn:disabled:hover {
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15),
    0 1px 0 rgba(255, 255, 255, 1) inset;
  transform: none;
}

/* Secondary glass button */
.glass-btn-secondary {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.glass-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.4);
}

/* ===================================
   TOGGLE BUTTONS
   =================================== */
.glass-toggle-group {
  display: flex;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 30px;
  overflow: hidden;
  padding: 4px;
}

.glass-toggle-btn {
  flex: 1;
  padding: 10px;
  text-align: center;
  background: transparent;
  border: none;
  border-radius: 26px;
  cursor: pointer;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  font-size: 0.95rem;
  position: relative;
  overflow: hidden;
  transform: scale(1);
}

.glass-toggle-btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  transform: translate(-50%, -50%);
  transition: width 0.5s cubic-bezier(0.34, 1.56, 0.64, 1),
    height 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
}

.glass-toggle-btn.active {
  background: rgba(255, 255, 255, 0.95);
  color: #5a6fd8;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18),
    0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 0 15px rgba(255, 255, 255, 0.2);
  transform: scale(1.05);
}

.glass-toggle-btn:hover:not(.active) {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.95);
  transform: scale(1.02);
}

.glass-toggle-btn:active::before {
  width: 200px;
  height: 200px;
  transition: width 0.4s ease-out, height 0.4s ease-out;
}

.glass-toggle-btn:active {
  transform: scale(0.97);
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ===================================
   CHECKBOXES
   =================================== */
.glass-checkbox-label {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  padding: 4px;
  border-radius: 8px;
}

.glass-checkbox-label:hover {
  transform: translateX(3px);
  text-shadow: 0 2px 6px rgba(255, 255, 255, 0.2);
}

.glass-checkbox-label:active {
  transform: scale(0.97);
}

.glass-checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: rgba(255, 255, 255, 0.9);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  transform: scale(1);
}

.glass-checkbox-label input[type="checkbox"]:hover {
  transform: scale(1.15);
}

.glass-checkbox-label input[type="checkbox"]:active {
  transform: scale(0.9);
}

.glass-checkbox-label input[type="checkbox"]:checked {
  animation: checkboxPop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes checkboxPop {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.3);
  }
}

/* ===================================
   LINKS
   =================================== */
.glass-link {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  display: inline-block;
  position: relative;
}

.glass-link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: rgba(255, 255, 255, 0.9);
  transition: width 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  border-radius: 2px;
}

.glass-link:hover {
  color: #fff;
  transform: translateX(3px) scale(1.05);
  text-shadow: 0 2px 8px rgba(255, 255, 255, 0.3);
}

.glass-link:hover::after {
  width: 100%;
}

.glass-link:active {
  transform: translateX(1px) scale(0.98);
  transition: all 0.2s ease;
}

/* ===================================
   MESSAGES & ALERTS
   =================================== */
.glass-message {
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 0.85rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-weight: 500;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  animation: slideIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-15px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.glass-message-error {
  background: rgba(255, 69, 69, 0.15);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  color: #fff;
  border: 1px solid rgba(255, 69, 69, 0.3);
  box-shadow: 0 8px 24px rgba(255, 69, 69, 0.25),
    0 1px 0 rgba(255, 255, 255, 0.2) inset;
}

.glass-message-success {
  background: rgba(76, 217, 100, 0.15);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  color: #fff;
  border: 1px solid rgba(76, 217, 100, 0.3);
  box-shadow: 0 8px 24px rgba(76, 217, 100, 0.25),
    0 1px 0 rgba(255, 255, 255, 0.2) inset;
}

.glass-message-warning {
  background: rgba(255, 204, 0, 0.15);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  color: #fff;
  border: 1px solid rgba(255, 204, 0, 0.3);
  box-shadow: 0 8px 24px rgba(255, 204, 0, 0.25),
    0 1px 0 rgba(255, 255, 255, 0.2) inset;
}

.glass-message-info {
  background: rgba(0, 122, 255, 0.15);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  color: #fff;
  border: 1px solid rgba(0, 122, 255, 0.3);
  box-shadow: 0 8px 24px rgba(0, 122, 255, 0.25),
    0 1px 0 rgba(255, 255, 255, 0.2) inset;
}

/* ===================================
   ANIMATIONS
   =================================== */
.glass-fade-in {
  animation: fadeIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.glass-slide-in {
  animation: formSlideIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes formSlideIn {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.glass-spin {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* ===================================
   LOADING SPINNER
   =================================== */
.glass-spinner {
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-top: 3px solid rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  animation: spin 1s linear infinite;
  display: inline-block;
}

/* ===================================
   TOUCH OPTIMIZATION (Mobile)
   =================================== */
@media (hover: none) and (pointer: coarse) {
  .glass-btn {
    transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  }

  .glass-btn:active {
    transform: scale(0.92);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2),
      0 1px 0 rgba(255, 255, 255, 1) inset;
    filter: brightness(0.95);
  }

  .glass-btn:active::after {
    width: 400px;
    height: 400px;
  }

  .glass-toggle-btn:active::before {
    width: 250px;
    height: 250px;
  }

  .glass-card:active {
    transform: scale(0.97);
  }

  .glass-input:active {
    transform: scale(0.99);
  }
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 480px) {
  .glass-container {
    border-radius: 16px;
    max-width: 100%;
  }

  .glass-btn {
    padding: 12px 24px;
    font-size: 0.95rem;
  }

  .glass-input {
    padding: 10px 12px;
    font-size: 0.9rem;
  }

  .glass-background::before,
  .glass-background::after {
    width: 250px;
    height: 250px;
  }
}

@media (min-width: 481px) and (max-width: 768px) {
  .glass-container {
    max-width: 520px;
  }

  .glass-background::before {
    width: 350px;
    height: 350px;
  }

  .glass-background::after {
    width: 300px;
    height: 300px;
  }
}

@media (min-width: 900px) {
  .glass-container {
    max-width: 600px;
  }

  .glass-background::before {
    width: 500px;
    height: 500px;
  }

  .glass-background::after {
    width: 450px;
    height: 450px;
  }
}

/* ===================================
   UTILITY CLASSES
   =================================== */
.glass-text-white {
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.glass-text-white-soft {
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.glass-text-white-muted {
  color: rgba(255, 255, 255, 0.7);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.glass-shadow-sm {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.glass-shadow-md {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.glass-shadow-lg {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.glass-blur-sm {
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.glass-blur-md {
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.glass-blur-lg {
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
}