/* -------------  Design Tokens ------------- */
:root {
  /* Colors */
  --primary: #0891b2;
  --primary-hover: #0e7490;
  --primary-light: #e0f2fe;
  --primary-dark: #0c4a6e;
  --secondary: #7dd3fc;
  --accent: #06b6d4;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;

  --clr-bg: #f8fafc;
  --clr-card-bg: rgba(255, 255, 255, 0.85);
  --clr-input-bg: #ffffff;
  --clr-border: #e2e8f0;
  --clr-border-focus: #0891b2;

  --clr-text: #1e293b;
  --clr-text-muted: #64748b;
  --clr-text-light: #94a3b8;
  --clr-text-white: #ffffff;

  /* Typography */
  --font-family: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;

  /* Borders */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.1),
    0 1px 1px rgba(255, 255, 255, 0.2) inset,
    0 -1px 1px rgba(0, 0, 0, 0.05) inset;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

/* -------------  Reset & Base Styles ------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Background elements */
.background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.6;
}

.shape1 {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  width: 500px;
  height: 500px;
  top: -250px;
  left: -100px;
  animation: float 15s ease-in-out infinite;
}

.shape2 {
  background: linear-gradient(135deg, var(--accent), var(--secondary));
  width: 400px;
  height: 400px;
  bottom: -200px;
  right: -100px;
  animation: float 18s ease-in-out infinite reverse;
}

.shape3 {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  width: 300px;
  height: 300px;
  top: 50%;
  left: 60%;
  animation: float 20s ease-in-out infinite 2s;
}

.shape4 {
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  width: 250px;
  height: 250px;
  top: 20%;
  left: 10%;
  animation: float 25s ease-in-out infinite 1s;
}

@keyframes float {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }

  25% {
    transform: translate(5%, 5%) rotate(5deg);
  }

  50% {
    transform: translate(0, 10%) rotate(0deg);
  }

  75% {
    transform: translate(-5%, 5%) rotate(-5deg);
  }

  100% {
    transform: translate(0, 0) rotate(0deg);
  }
}

/* Header and Logout */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-6);
  position: relative;
  z-index: 10;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.logo {
  height: 50px;
}

.logo img {
  height: 100%;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.logout-button {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--primary-dark);
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--space-2) var(--space-4);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
}

.logout-button:hover {
  background-color: rgba(255, 255, 255, 1);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.logout-button:active {
  transform: translateY(0);
}

/* -------------  Layout ------------- */
.container {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6) var(--space-12);
  position: relative;
  z-index: 1;
}

/* -------------  Card ------------- */
.card {
  background-color: var(--clr-card-bg);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  margin-bottom: var(--space-8);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card:hover {
  /* transform: translateY(-5px); */
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15),
    0 1px 1px rgba(255, 255, 255, 0.2) inset,
    0 -1px 1px rgba(0, 0, 0, 0.05) inset;
}

/* Improve the card header */
.card-header {
  padding: var(--space-8) var(--space-8) var(--space-6);
  text-align: center;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  position: relative;
  overflow: hidden;
}

.card-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 20% 30%,
      rgba(255, 255, 255, 0.2) 0%,
      transparent 50%),
    radial-gradient(circle at 80% 70%,
      rgba(255, 255, 255, 0.1) 0%,
      transparent 50%);
}

.card-title {
  font-size: var(--font-size-3xl);
  font-weight: 600;
  color: white;
  margin: 0;
  margin-bottom: var(--space-2);
  position: relative;
}

.card-subtitle {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
  position: relative;
}

.card-content {
  padding: var(--space-8);
}

/* -------------  Progress Steps ------------- */
.form-progress {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
  position: relative;
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--clr-bg);
  border: 2px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--clr-text-muted);
  margin-bottom: var(--space-2);
  transition: all var(--transition-normal);
}

.step-label {
  font-size: var(--font-size-sm);
  color: var(--clr-text-muted);
  font-weight: 500;
  transition: color var(--transition-normal);
}

.progress-step.active .step-number {
  background-color: var(--primary);
  border-color: var(--primary);
  color: white;
  box-shadow: 0 0 0 4px rgba(8, 145, 178, 0.2);
}

.progress-step.active .step-label {
  color: var(--primary);
  font-weight: 600;
}

.progress-step.completed .step-number {
  background-color: var(--success);
  border-color: var(--success);
  color: white;
}

.progress-step.completed .step-label {
  color: var(--success);
}

.progress-connector {
  flex: 1;
  height: 2px;
  background-color: var(--clr-border);
  margin: 0 var(--space-2);
  position: relative;
  top: -15px;
}

.progress-step.completed+.progress-connector {
  background-color: var(--success);
}

/* -------------  Form Steps ------------- */
.form-step {
  display: none;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.form-step.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
  animation: fadeIn 0.5s ease-out;
}

/* -------------  Form Elements ------------- */
.form-group {
  margin-bottom: var(--space-6);
}

.section-title {
  display: flex;
  align-items: center;
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--primary-dark);
}

.section-title svg {
  margin-right: var(--space-2);
  color: var(--primary);
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--primary-dark);
  font-size: var(--font-size-sm);
}

.input-wrapper,
.select-wrapper {
  position: relative;
}

.input-icon {
  position: absolute;
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--clr-text-light);
  pointer-events: none;
}

.form-control {
  display: block;
  width: 100%;
  padding: var(--space-4);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--clr-text);
  background-color: var(--clr-input-bg);
  background-clip: padding-box;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.form-control:focus {
  outline: none;
  border-color: var(--clr-border-focus);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.2);
  transform: translateY(-2px);
}

.account-info-box {
  margin-top: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background-color: var(--clr-input-bg);
  border-left: 3px solid var(--primary);
  box-shadow: var(--shadow-sm);
}

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--clr-text-muted);
  margin-top: var(--space-2);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  background-size: 16px;
  padding-right: var(--space-10);
}

select.form-control[multiple] {
  background-image: none;
  padding-right: var(--space-4);
  height: auto;
  min-height: 120px;
}

/* Search button */
#searchAccountBtn {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  padding: 0 var(--space-4);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

#searchAccountBtn:hover {
  background-color: var(--primary-hover);
}

#searchAccountBtn svg {
  width: 16px;
  height: 16px;
}

/* -------------  Checkbox ------------- */
.checkbox-group {
  display: flex;
  align-items: center;
}

.checkbox-label {
  display: flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkbox-custom {
  position: relative;
  display: inline-block;
  width: 20px;
  height: 20px;
  background-color: var(--clr-input-bg);
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-sm);
  margin-right: var(--space-3);
  transition: all var(--transition-fast);
}

.checkbox-label input[type="checkbox"]:checked+.checkbox-custom {
  background-color: var(--primary);
  border-color: var(--primary);
}

.checkbox-label input[type="checkbox"]:checked+.checkbox-custom::after {
  content: "";
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
}

.checkbox-text {
  font-weight: 500;
  font-size: var(--font-size-sm);
}

/* -------------  Buttons ------------- */
.form-actions {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-8);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-md);
  line-height: 1.5;
  border-radius: var(--radius-lg);
  transition: all 0.3s ease;
  cursor: pointer;
  min-width: 120px;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
      rgba(255, 255, 255, 0) 0%,
      rgba(255, 255, 255, 0.2) 50%,
      rgba(255, 255, 255, 0) 100%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

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

.btn-primary {
  color: var(--clr-text-white);
  background-color: var(--primary);
  border-color: var(--primary);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(8, 145, 178, 0.3);
}

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

.btn-next {
  color: var(--clr-text-white);
  background-color: var(--primary);
  border-color: var(--primary);
  margin-left: auto;
}

.btn-next:hover:not(:disabled) {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(8, 145, 178, 0.3);
}

.btn-back {
  color: var(--clr-text);
  background-color: var(--clr-bg);
  border-color: var(--clr-border);
}

.btn-back:hover:not(:disabled) {
  background-color: var(--clr-border);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
  color: var(--primary-dark);
  background-color: var(--primary-light);
  border-color: transparent;
  margin-bottom: var(--space-6);
}

.btn-secondary:hover:not(:disabled) {
  background-color: rgba(8, 145, 178, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.25);
}

.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

/* -------------  Appointment Cards ------------- */
.appointment-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.appointment-card {
  background-color: var(--primary-light);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  border: 1px solid rgba(8, 145, 178, 0.2);
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.appointment-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 15px rgba(8, 145, 178, 0.15);
}

.appointment-card-row {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-2);
}

.appointment-card-row:last-child {
  margin-bottom: 0;
}

.appointment-card-icon {
  margin-right: var(--space-2);
  color: var(--primary);
}

.appointment-card-location {
  font-size: var(--font-size-sm);
  color: var(--clr-text-muted);
  margin-top: var(--space-2);
  padding-left: var(--space-6);
}

/* -------------  Time Slots ------------- */
.slot-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  font-weight: 600;
}

.slot-header svg {
  color: var(--primary);
}

.time-slots {
  display: flex;
  flex-direction: column !important;
  gap: var(--space-3);
}

.time-slot {
  padding: var(--space-3);
  text-align: center;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: 500;
  user-select: none;
  transition: all 0.3s ease;
  background-color: var(--clr-card-bg);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.time-slot:hover {
  background-color: var(--primary-light);
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.time-slot.selected {
  background-color: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(8, 145, 178, 0.3);
}

/* -------------  Message Box ------------- */
.message-box {
  display: flex;
  align-items: center;
  padding: var(--space-4);
  background-color: #fff8e1;
  border: 1px solid #ffecb3;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-6);
}

.message-box svg {
  color: var(--warning);
  margin-right: var(--space-3);
  flex-shrink: 0;
}

.message-box p {
  margin: 0;
  font-size: var(--font-size-sm);
}

/* -------------  Loading Overlay ------------- */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.9);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s, visibility 0.3s;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

.loading-overlay.active {
  visibility: visible;
  opacity: 1;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(8, 145, 178, 0.1);
  border-radius: 50%;
  border-top-color: var(--primary);
  animation: spin 1s ease-in-out infinite;
  margin-bottom: var(--space-3);
}

.loading-text {
  font-size: var(--font-size-md);
  font-weight: 500;
  color: var(--primary);
}

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

/* -------------  Modal ------------- */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1001;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s, visibility 0.3s;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

.modal.active {
  visibility: visible;
  opacity: 1;
}

.modal-content {
  background-color: var(--clr-card-bg);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform 0.3s;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.modal.active .modal-content {
  transform: translateY(0);
}

.modal-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
}

.modal-icon.success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.modal h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
  color: var(--clr-text);
}

.modal p {
  color: var(--clr-text-muted);
  margin-bottom: var(--space-6);
}

/* -------------  Chips ------------- */
.chips-container {
  display: flex;
  gap: 10px;
  margin-bottom: var(--space-4);
}

.chip {
  display: inline-block;
  padding: 8px 16px;
  background-color: var(--primary-light);
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.chip:hover {
  background-color: rgba(8, 145, 178, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.chip.selected {
  background-color: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(8, 145, 178, 0.3);
}

/* -------------  Registration Modal Improvements ------------- */
.registration-modal {
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-6);
  text-align: left;
}

.modal-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.modal-subtitle {
  color: var(--clr-text-muted);
  margin-top: var(--space-2);
}

.form-row {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.form-row .form-group {
  flex: 1;
  margin-bottom: 0;
}

.form-section-title {
  font-weight: 600;
  color: var(--primary-dark);
  margin: var(--space-6) 0 var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--clr-border);
}

/* Scrollbar styling for the registration modal */
.registration-modal::-webkit-scrollbar {
  width: 8px;
}

.registration-modal::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 10px;
}

.registration-modal::-webkit-scrollbar-thumb {
  background: rgba(8, 145, 178, 0.3);
  border-radius: 10px;
}

.registration-modal::-webkit-scrollbar-thumb:hover {
  background: rgba(8, 145, 178, 0.5);
}

/* -------------  Responsive Adjustments ------------- */
@media (max-width: 768px) {
  .container {
    padding: var(--space-2);
  }

  .app-header {
    padding: var(--space-4);
  }

  .card-header {
    padding: var(--space-6) var(--space-4) var(--space-4);
  }

  .card-content {
    padding: var(--space-6);
  }

  .form-progress {
    margin-bottom: var(--space-6);
  }

  .step-label {
    font-size: var(--font-size-xs);
  }

  .form-actions {
    flex-direction: column;
    gap: var(--space-3);
  }

  .btn {
    width: 100%;
  }

  .btn-back {
    order: 2;
  }

  .btn-next,
  .btn-primary {
    order: 1;
  }

  .form-row {
    flex-direction: column;
    gap: var(--space-4);
  }
}

@media (max-width: 480px) {
  .card-content {
    padding: var(--space-4);
  }

  .card-title {
    font-size: var(--font-size-xl);
  }

  .card-subtitle {
    font-size: var(--font-size-sm);
  }

  .form-control {
    padding: var(--space-3);
    font-size: var(--font-size-sm);
  }

  .progress-step .step-number {
    width: 28px;
    height: 28px;
    font-size: var(--font-size-xs);
  }

  .registration-modal {
    padding: var(--space-4);
  }
}

.slots-wrapper {
  display: flex;
  flex-direction: column;
  gap: 32px;
  flex-wrap: wrap;
}

.slot-column {
  flex: 1;
  min-width: 320px;
  width: 100%;
}

.slot-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.slot-section-header {
  font-weight: 600;
  font-size: 16px;
  margin-bottom: 8px;
  margin-top: 24px;
}


.form-control.is-invalid,
.select-wrapper .form-control.is-invalid {
  border-color: #e74c3c;
  /* A clear red color for errors */
  box-shadow: 0 0 0 2px rgba(231, 76, 60, 0.2);
}