/* ============================================
   CLASIÓ LOGIN PREMIUM - MOBILE FIRST DESIGN
   Award-winning authentication experience
   ============================================ */

/* === RESET & BASE === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

:root {
  /* Teacher Theme - Blue */
  --primary-start: #2563EB;
  --primary-mid: #3B82F6;
  --primary-end: #60A5FA;
  --primary-glow: rgba(37, 99, 235, 0.4);
  --primary-light: rgba(59, 130, 246, 0.1);
  
  /* UI Colors */
  --bg-overlay: rgba(0, 0, 0, 0.4);
  --card-bg: rgba(255, 255, 255, 0.95);
  --card-shadow: rgba(0, 0, 0, 0.1);
  --input-bg: rgba(255, 255, 255, 0.98);
  --input-border: rgba(0, 0, 0, 0.1);
  --input-focus: var(--primary-mid);
  --text-primary: #1F2937;
  --text-secondary: #6B7280;
  --text-hint: #9CA3AF;
  --error: #EF4444;
  --success: #10B981;
  --white: #FFFFFF;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === STUDENT THEME === */
body.theme-student {
  --primary-start: #059669;
  --primary-mid: #10B981;
  --primary-end: #34D399;
  --primary-glow: rgba(5, 150, 105, 0.4);
  --primary-light: rgba(16, 185, 129, 0.1);
}

/* === FAMILY THEME === */
body.theme-family {
  --primary-start: #EA580C;
  --primary-mid: #F59E0B;
  --primary-end: #FBBF24;
  --primary-glow: rgba(234, 88, 12, 0.4);
  --primary-light: rgba(245, 158, 11, 0.1);
}

/* === BODY & HTML === */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  min-height: 100vh;
  min-height: 100dvh;
  background: linear-gradient(135deg, var(--primary-start) 0%, var(--primary-mid) 50%, var(--primary-end) 100%);
  background-size: 200% 200%;
  animation: gradientShift 15s ease infinite;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  overflow-x: hidden;
  overflow-y: auto;
  position: relative;
  transition: background 0.6s ease;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* === ANIMATED BACKGROUND === */
.animated-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  animation: float 20s ease-in-out infinite;
}

.orb-1 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--primary-end), transparent);
  top: -150px;
  left: -150px;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--primary-mid), transparent);
  bottom: -200px;
  right: -200px;
  animation-delay: 7s;
}

.orb-3 {
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, var(--primary-start), transparent);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: 14s;
}

@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); }
}

/* === MAIN CONTAINER === */
.login-container {
  width: 100%;
  max-width: 440px;
  position: relative;
  z-index: 1;
  animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === LOGO HEADER === */
.logo-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  animation: fadeIn 0.8s ease 0.2s both;
}

.logo {
  height: 40px;
  width: auto;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
  transition: transform var(--transition-base);
}

.logo:hover {
  transform: scale(1.05);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* === LOGIN CARD === */
.login-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.15),
    0 0 0 1px rgba(255, 255, 255, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  animation: cardEntrance 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.1s both;
  transition: transform var(--transition-base);
}

.login-card:hover {
  transform: translateY(-2px);
}

@keyframes cardEntrance {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* === USER TYPE SELECTOR === */
.user-type-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-xl);
  padding: 4px;
  background: rgba(0, 0, 0, 0.03);
  border-radius: var(--radius-md);
}

.user-type-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px 8px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  min-height: 68px;
  touch-action: manipulation;
}

.user-type-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--primary-light);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.user-type-btn:active {
  transform: scale(0.96);
}

.user-type-btn.active {
  color: var(--primary-mid);
  font-weight: 600;
  background: var(--white);
  box-shadow: 
    0 2px 8px var(--primary-glow),
    0 0 0 1px var(--primary-light);
}

.user-type-btn.active::before {
  opacity: 1;
}

.user-icon {
  width: 24px;
  height: 24px;
  stroke-width: 2;
  transition: transform var(--transition-base);
}

.user-type-btn.active .user-icon {
  transform: scale(1.1);
}

.user-type-btn span {
  position: relative;
  z-index: 1;
}

/* === WELCOME SECTION === */
.welcome-section {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.welcome-title {
  font-size: clamp(1.75rem, 5vw, 2rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  letter-spacing: -0.02em;
}

.welcome-subtitle {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-weight: 400;
}

/* === MESSAGE BOXES === */
.message-box {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  font-size: 0.875rem;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideOut {
  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}

.error-box {
  background: rgba(239, 68, 68, 0.1);
  border-left: 3px solid var(--error);
  color: #991B1B;
}

.success-box {
  background: rgba(16, 185, 129, 0.1);
  border-left: 3px solid var(--success);
  color: #065F46;
}

.message-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.error-box .message-icon {
  stroke: var(--error);
}

.success-box .message-icon {
  stroke: var(--success);
}

/* === AUTH METHOD TOGGLE === */
.auth-method-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
  padding: 4px;
  background: rgba(0, 0, 0, 0.03);
  border-radius: var(--radius-md);
}

.method-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 10px 16px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  touch-action: manipulation;
}

.method-btn svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
}

.method-btn:active {
  transform: scale(0.96);
}

.method-btn.active {
  background: var(--white);
  color: var(--primary-mid);
  font-weight: 600;
  box-shadow: 
    0 2px 8px var(--primary-glow),
    0 0 0 1px var(--primary-light);
}

/* === INPUT CONTAINERS === */
.input-container {
  margin-bottom: var(--spacing-lg);
  display: none;
  animation: fadeSlideIn 0.3s ease;
}

.input-container.active {
  display: block;
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.floating-input {
  position: relative;
}

.form-input {
  width: 100%;
  height: 52px;
  padding: 16px 48px 16px 48px;
  background: var(--input-bg);
  border: 2px solid var(--input-border);
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 400;
  color: var(--text-primary);
  transition: all var(--transition-base);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.form-input::placeholder {
  color: transparent;
}

.form-input:focus {
  border-color: var(--input-focus);
  box-shadow: 
    0 0 0 4px var(--primary-light),
    0 4px 12px var(--primary-glow);
  transform: translateY(-1px);
}

.form-input.valid {
  border-color: var(--success);
}

/* Floating Label */
.floating-label {
  position: absolute;
  left: 48px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-hint);
  font-size: 16px;
  font-weight: 400;
  pointer-events: none;
  transition: all var(--transition-base);
  background: var(--input-bg);
  padding: 0 4px;
}

.form-input:focus ~ .floating-label,
.form-input:not(:placeholder-shown) ~ .floating-label {
  top: 0;
  left: 44px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--input-focus);
}

/* Input Icon */
.input-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-hint);
  pointer-events: none;
  transition: all var(--transition-base);
}

.input-icon svg {
  width: 20px;
  height: 20px;
  stroke-width: 2;
}

.form-input:focus ~ .input-icon {
  color: var(--input-focus);
  transform: translateY(-50%) scale(1.1);
}

/* Password Toggle */
.password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--text-hint);
  transition: all var(--transition-base);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
}

.password-toggle:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-primary);
}

.password-toggle:active {
  transform: translateY(-50%) scale(0.9);
}

.password-toggle svg {
  width: 20px;
  height: 20px;
  stroke-width: 2;
}

/* Input Hint */
.input-hint {
  margin-top: var(--spacing-xs);
  font-size: 0.75rem;
  color: var(--text-hint);
  padding-left: 4px;
}

/* === FORGOT PASSWORD === */
.forgot-password-container {
  text-align: right;
  margin-bottom: var(--spacing-lg);
}

.forgot-link {
  font-size: 0.875rem;
  color: var(--primary-mid);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-base);
  display: inline-block;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

.forgot-link:hover {
  background: var(--primary-light);
  transform: translateX(-2px);
}

.forgot-link:active {
  transform: translateX(-2px) scale(0.98);
}

/* === SUBMIT BUTTON === */
.submit-btn {
  width: 100%;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0 var(--spacing-xl);
  background: linear-gradient(135deg, var(--primary-start), var(--primary-mid), var(--primary-end));
  background-size: 200% 200%;
  border: none;
  border-radius: var(--radius-md);
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: 
    0 4px 12px var(--primary-glow),
    0 2px 4px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
  touch-action: manipulation;
}

.submit-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 
    0 8px 20px var(--primary-glow),
    0 4px 8px rgba(0, 0, 0, 0.15);
  background-position: 100% 50%;
}

.submit-btn:hover::before {
  transform: translateX(100%);
}

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

.submit-btn:disabled {
  cursor: not-allowed;
  opacity: 0.7;
}

.btn-arrow {
  width: 20px;
  height: 20px;
  stroke-width: 2.5;
  transition: transform var(--transition-base);
}

.submit-btn:hover .btn-arrow {
  transform: translateX(4px);
}

.submit-btn.loading .btn-arrow {
  display: none;
}

/* Button Loader */
.btn-loader {
  display: none;
  align-items: center;
  justify-content: center;
}

.submit-btn.loading .btn-loader {
  display: flex;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* === CARD FOOTER === */
.card-footer {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  text-align: center;
}

.footer-link {
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-base);
  display: inline-block;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
}

.footer-link.primary {
  color: var(--primary-mid);
}

.footer-link.primary:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
}

.footer-divider {
  height: 1px;
  background: rgba(0, 0, 0, 0.06);
  margin: var(--spacing-md) 0;
}

.footer-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.footer-link.secondary {
  color: var(--text-hint);
  font-size: 0.8125rem;
  font-weight: 400;
}

.footer-link.secondary:hover {
  color: var(--text-secondary);
  background: rgba(0, 0, 0, 0.03);
}

.dot {
  color: var(--text-hint);
  font-size: 0.75rem;
  user-select: none;
}

/* === CUSTOM COUNTRY CODE SELECTOR === */
.custom-select-wrapper {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
}

.custom-select-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 40px;
  padding: 0 8px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.85));
  border: none;
  border-right: 2px solid var(--input-border);
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  outline: none;
}

.custom-select-trigger:hover {
  background: linear-gradient(135deg, rgba(255, 255, 255, 1), rgba(255, 255, 255, 0.95));
  border-right-color: var(--primary-mid);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  transform: scale(1.02);
}

.custom-select-trigger:active {
  transform: scale(0.98);
}

.custom-select-trigger .flag-emoji {
  font-size: 18px;
  line-height: 1;
}

.custom-select-trigger .country-code {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.custom-select-trigger .dropdown-arrow {
  width: 10px;
  height: 10px;
  color: var(--primary-mid);
  transition: transform var(--transition-base);
  margin-left: 2px;
}

.custom-select-trigger.open .dropdown-arrow {
  transform: rotate(180deg);
}

/* Dropdown */
.custom-select-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  background: var(--white);
  border: 2px solid var(--primary-mid);
  border-radius: var(--radius-md);
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(0, 0, 0, 0.05);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  z-index: 1000;
}

.custom-select-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.custom-select-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: 3px;
}

.custom-select-option:last-child {
  margin-bottom: 0;
}

.custom-select-option:hover {
  background: var(--primary-light);
  transform: translateX(3px);
}

.custom-select-option.selected {
  background: linear-gradient(135deg, var(--primary-mid), var(--primary-start));
  color: var(--white);
}

.custom-select-option.selected .country-name,
.custom-select-option.selected .country-code {
  color: var(--white);
}

.custom-select-option .flag-emoji {
  font-size: 20px;
  line-height: 1;
}

.custom-select-option .country-name {
  flex: 1;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
}

.custom-select-option .country-code {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  font-family: 'Inter', sans-serif;
}

.phone-input-with-code {
  padding-left: 120px !important; /* más espacio para que la 'N' no quede pegada al selector */
}

.phone-label {
  left: 120px !important; /* alinear la etiqueta flotante con el nuevo padding */
}

.phone-icon {
  display: none !important;
}

/* === INTL TEL INPUT OVERRIDES === */
.iti {
  width: 100%;
  display: block;
  position: relative;
}

.iti__flag-container {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
}

.iti__selected-flag {
  padding: 8px 6px 8px 0;
  background: transparent;
  border: none;
  height: 40px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-base);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.iti__selected-flag:hover,
.iti__selected-flag:focus {
  background: rgba(0, 0, 0, 0.04);
}

.iti__selected-flag:active {
  transform: scale(0.96);
}

.iti__flag {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border-radius: 2px;
  width: 20px;
  height: 15px;
}

.iti__arrow {
  border-top-color: var(--text-hint);
  margin-left: 4px;
  transition: all var(--transition-base);
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid var(--text-hint);
}

.iti__selected-flag:hover .iti__arrow {
  border-top-color: var(--text-secondary);
}

.iti--separate-dial-code .iti__selected-dial-code {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-left: 6px;
  font-family: 'Inter', sans-serif;
}

.iti--separate-dial-code .form-input {
  padding-left: 105px;
}

.iti--separate-dial-code .floating-label {
  left: 105px;
}

/* Dropdown de países - MEJORADO */
.iti__country-list {
  position: absolute;
  z-index: 9999 !important;
  background: var(--white);
  border: 2px solid var(--primary-mid);
  border-radius: var(--radius-md);
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(0, 0, 0, 0.05);
  max-height: 200px;
  margin-top: 8px;
  overflow-y: auto;
  padding: 6px;
  min-width: 250px;
  left: 0 !important;
}

.iti__country {
  padding: 14px 16px;
  transition: all var(--transition-fast);
  border-radius: var(--radius-sm);
  margin-bottom: 3px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
}

.iti__country:hover {
  background: var(--primary-light);
  transform: translateX(3px);
}

.iti__country.iti__highlight {
  background: var(--primary-light);
}

.iti__country.iti__active {
  background: var(--primary-mid);
  color: var(--white);
  font-weight: 600;
}

.iti__country.iti__active .iti__dial-code {
  color: var(--white);
}

.iti__country-name {
  font-size: 0.9375rem;
  color: var(--text-primary);
  font-weight: 500;
  flex: 1;
}

.iti__dial-code {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
}

.iti__flag-box {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border-radius: 2px;
  width: 20px;
  height: 15px;
}

/* Scrollbar personalizado para el dropdown */
.iti__country-list::-webkit-scrollbar {
  width: 8px;
}

.iti__country-list::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.03);
  border-radius: 4px;
  margin: 4px 0;
}

.iti__country-list::-webkit-scrollbar-thumb {
  background: var(--primary-mid);
  border-radius: 4px;
  transition: background var(--transition-fast);
}

.iti__country-list::-webkit-scrollbar-thumb:hover {
  background: var(--primary-start);
}

/* Asegurar que el dropdown sea visible sobre otros elementos */
.phone-container {
  position: relative;
  z-index: 1;
}

.phone-container.active {
  z-index: 10;
}

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

/* Small phones (< 375px) */
@media (max-width: 374px) {
  :root {
    --spacing-xl: 1.5rem;
    --spacing-lg: 1.25rem;
  }
  
  .login-card {
    padding: var(--spacing-lg);
  }
  
  .user-type-btn {
    padding: 10px 6px;
    font-size: 0.75rem;
    min-height: 64px;
  }
  
  .user-icon {
    width: 20px;
    height: 20px;
  }
  
  .welcome-title {
    font-size: 1.5rem;
  }
}

/* Tablets and landscape phones (640px - 1024px) */
@media (min-width: 640px) {
  body {
    padding: var(--spacing-xl);
  }
  
  .login-container {
    max-width: 480px;
  }
  
  .logo {
    height: 48px;
  }
  
  .login-card {
    padding: 2.5rem;
  }
  
  .user-type-btn {
    padding: 14px 12px;
    font-size: 0.875rem;
    min-height: 72px;
  }
  
  .user-icon {
    width: 26px;
    height: 26px;
  }
  
  .form-input {
    height: 56px;
  }
  
  .submit-btn {
    height: 56px;
  }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
  .login-container {
    max-width: 520px;
  }
  
  .login-card {
    padding: 3rem;
  }
  
  .login-card:hover {
    transform: translateY(-4px);
  }
  
  .user-type-btn:hover:not(.active) {
    background: rgba(0, 0, 0, 0.02);
    transform: translateY(-1px);
  }
  
  .method-btn:hover:not(.active) {
    background: rgba(0, 0, 0, 0.02);
  }
}

/* Landscape orientation optimization */
@media (max-height: 700px) and (orientation: landscape) {
  body {
    padding: var(--spacing-sm);
  }
  
  .logo-header {
    margin-bottom: var(--spacing-md);
  }
  
  .logo {
    height: 32px;
  }
  
  .login-card {
    padding: var(--spacing-lg);
  }
  
  .welcome-section {
    margin-bottom: var(--spacing-md);
  }
  
  .user-type-selector {
    margin-bottom: var(--spacing-md);
  }
  
  .input-container {
    margin-bottom: var(--spacing-md);
  }
  
  .user-type-btn {
    min-height: 56px;
    padding: 8px 6px;
  }
}

/* Safe area insets for notch devices */
@supports (padding: max(0px)) {
  body {
    padding-left: max(var(--spacing-md), env(safe-area-inset-left));
    padding-right: max(var(--spacing-md), env(safe-area-inset-right));
    padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom));
  }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .login-card {
    border: 2px solid var(--text-primary);
  }
  
  .form-input {
    border-width: 2px;
  }
  
  .user-type-btn.active,
  .method-btn.active {
    border: 2px solid var(--primary-mid);
  }
}

/* Dark mode support (optional future enhancement) */
@media (prefers-color-scheme: dark) {
  /* Can be implemented if needed */
}

/* Print styles */
@media print {
  .animated-bg,
  .gradient-orb {
    display: none;
  }
  
  body {
    background: white;
  }
  
  .login-card {
    box-shadow: none;
    border: 1px solid #000;
  }
}