/* 
 * SAP B1 Stock Manager - Style moderne complet
 * Version: 2.0
 */

/* ======== VARIABLES ======== */
:root {
  --primary-color: #e63946;
  --primary-light: #fd5d6b;
  --primary-dark: #c3313e;
  --secondary-color: #2c3e50;
  --secondary-light: #3c5a7c;
  --accent-color: #4361ee;
  --accent-light: #5a75f5;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #3b82f6;
  
  --background-color: #f8f9fa;
  --card-bg-color: #ffffff;
  --header-bg-color: #1d2939;
  --footer-bg-color: #1d2939;
  
  --text-color: #333333;
  --text-light: #6c757d;
  --text-lighter: #a0aec0;
  --text-inverse: #ffffff;
  
  --border-color: #e2e8f0;
  --border-radius-sm: 6px;
  --border-radius: 10px;
  --border-radius-lg: 16px;
  
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  --transition-fast: all 0.2s ease;
  --transition: all 0.3s ease;
  --transition-slow: all 0.5s ease;
  
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  
  --font-family: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* ======== BASE STYLES ======== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  height: 100%;
}

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

main {
  flex: 1;
  padding: var(--spacing-lg) 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--accent-light);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--secondary-color);
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}

h1 {
  font-size: 1.875rem;
  font-weight: 700;
}

h2 {
  font-size: 1.5rem;
  position: relative;
  padding-bottom: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

h2:after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  width: 60px;
  background-color: var(--primary-color);
  border-radius: 3px;
}

h3 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--spacing-md);
}

/* ======== HEADER ======== */
header {
  background-color: var(--header-bg-color);
  color: var(--text-inverse);
  padding: var(--spacing-lg) 0;
  box-shadow: var(--shadow);
  position: relative;
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

#username-display {
  font-weight: 600;
  position: relative;
  padding-left: var(--spacing-lg);
}

#username-display:before {
  content: "\f007"; /* Font Awesome user icon */
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary-light);
}

/* ======== BUTTONS ======== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: none;
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  line-height: 1.5;
  border-radius: var(--border-radius);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  outline: none;
}

.btn i, .btn svg {
  font-size: 1rem;
}

.btn:focus {
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.3);
}

.btn-primary {
  background: linear-gradient(45deg, var(--primary-color), var(--primary-light));
  color: white;
}

.btn-primary:hover, .btn-primary:focus {
  background: linear-gradient(45deg, var(--primary-dark), var(--primary-color));
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

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

.btn-secondary {
  background: linear-gradient(45deg, var(--secondary-color), var(--secondary-light));
  color: white;
}

.btn-secondary:hover, .btn-secondary:focus {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-success {
  background: linear-gradient(45deg, #059669, var(--success-color));
  color: white;
}

.btn-success:hover, .btn-success:focus {
  transform: translateY(-2px);
  box-shadow: 0 7px 14px rgba(16, 185, 129, 0.25);
}

.btn-danger {
  background: linear-gradient(45deg, #dc2626, var(--danger-color));
  color: white;
}

.btn-danger:hover, .btn-danger:focus {
  transform: translateY(-2px);
  box-shadow: 0 7px 14px rgba(239, 68, 68, 0.25);
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* Ripple effect */
.btn:after {
  content: "";
  display: block;
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  background-image: radial-gradient(circle, rgba(255,255,255,0.3) 10%, transparent 10.01%);
  background-repeat: no-repeat;
  background-position: 50%;
  transform: scale(10, 10);
  opacity: 0;
  transition: transform 0.5s, opacity 1s;
}

.btn:active:after {
  transform: scale(0, 0);
  opacity: 0.3;
  transition: 0s;
}

/* ======== FORMS ======== */
.form-container {
  background-color: var(--card-bg-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow);
  max-width: 500px;
  margin: 0 auto;
  transition: var(--transition);
}

.form-container:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.form-group {
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-color);
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  background-color: #f9fafb;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent-color);
  background-color: #ffffff;
  box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.1);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236B7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
  background-position: right 0.75rem center;
  background-repeat: no-repeat;
  background-size: 1.25rem;
  padding-right: 2.5rem;
}

.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-sm);
}

.radio-group label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  font-weight: normal;
  margin-bottom: 0;
}

.radio-group input[type="radio"] {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  transition: var(--transition-fast);
  position: relative;
  cursor: pointer;
}

.radio-group input[type="radio"]:checked {
  border-color: var(--accent-color);
}

.radio-group input[type="radio"]:checked::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-color);
}

.form-action {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

/* ======== CARDS & SECTIONS ======== */
.card, .section, .data-section, .manual-entry, .session-info {
  background-color: var(--card-bg-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-lg);
  transition: var(--transition);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.card:hover, .session-info:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.card-header, .section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--border-color);
}

.session-header {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.session-data {
  flex: 1;
  min-width: 250px;
}

.session-data p {
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
}

.session-data strong {
  display: inline-block;
  min-width: 120px;
  color: var(--secondary-color);
}

.session-actions {
  display: flex;
  align-items: flex-start;
}

.session-sync-info {
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: rgba(67, 97, 238, 0.1);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--accent-color);
  font-size: 0.875rem;
}

/* ======== TABLES ======== */
.data-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.counter {
  font-weight: 600;
  font-size: 1rem;
  color: var(--secondary-color);
  padding: 0.5rem 1rem;
  background-color: rgba(44, 62, 80, 0.1);
  border-radius: var(--border-radius);
}

.buttons {
  display: flex;
  gap: var(--spacing-sm);
}

.table-container {
  overflow-x: auto;
  margin: 0 -1rem;
  padding: 0 1rem;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-bottom: var(--spacing-lg);
}

table th, table td {
  padding: 0.75rem 1rem;
  text-align: left;
  vertical-align: middle;
}

table th {
  background-color: #f8f9fa;
  font-weight: 600;
  color: var(--secondary-color);
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 2px solid var(--border-color);
}

table th:first-child {
  border-top-left-radius: var(--border-radius-sm);
}

table th:last-child {
  border-top-right-radius: var(--border-radius-sm);
}

table tbody tr {
  transition: var(--transition-fast);
  border-bottom: 1px solid var(--border-color);
}

table tbody tr:hover {
  background-color: rgba(67, 97, 238, 0.05);
}

.item-main-row {
  background-color: transparent !important;
  border-bottom: none !important;
}

.item-designation-row {
  border-bottom: 1px solid var(--border-color) !important;
}

.item-designation-row td {
  padding-top: 0 !important;
  padding-bottom: 0.75rem !important;
}

.designation-cell {
  color: var(--text-light);
  font-style: italic;
  font-size: 0.875rem;
}

.action-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--danger-color);
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.75rem;
  border-radius: var(--border-radius-sm);
  transition: var(--transition-fast);
}

.action-btn:hover {
  background-color: rgba(239, 68, 68, 0.1);
  color: #b91c1c;
}

/* ======== MODALS ======== */
.modal {
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

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

.modal-content {
  position: relative;
  background-color: var(--card-bg-color);
  margin: var(--spacing-lg);
  width: 90%;
  max-width: 500px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  animation: modalFadeIn 0.3s;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--secondary-color);
  color: var(--text-inverse);
  border-top-left-radius: var(--border-radius-lg);
  border-top-right-radius: var(--border-radius-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  margin: 0;
  font-size: 1.125rem;
  color: var(--text-inverse);
}

.close-modal {
  color: var(--text-inverse);
  font-size: 1.5rem;
  font-weight: 700;
  background: none;
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
  line-height: 1;
}

.close-modal:hover {
  color: var(--primary-light);
  transform: scale(1.1);
}

.modal-body {
  padding: var(--spacing-lg);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: #f8f9fa;
  border-bottom-left-radius: var(--border-radius-lg);
  border-bottom-right-radius: var(--border-radius-lg);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
}

/* Modal animations */
@keyframes modalFadeIn {
  from {
    transform: translateY(-50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ======== OPTION CARDS ======== */
.option-cards {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  margin-top: var(--spacing-lg);
}

.option-card {
  flex: 1 1 250px;
  background-color: var(--card-bg-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: var(--spacing-lg);
  cursor: pointer;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.option-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-light);
}

.option-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--accent-color);
  transition: var(--transition);
}

.option-card:hover .option-icon {
  transform: scale(1.1);
  color: var(--primary-color);
}

.option-card h3 {
  margin: var(--spacing-md) 0;
  font-size: 1.25rem;
  color: var(--secondary-color);
}

.option-card p {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: 0;
}

/* ======== LOGIN SPECIFIC ======== */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.login-form {
  background-color: var(--card-bg-color);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 400px;
  transition: var(--transition);
}

.login-form:hover {
  transform: translateY(-5px);
}

.logo-container {
  display: flex;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.logo {
  max-width: 120px;
  height: auto;
  transition: var(--transition);
}

.password-container {
  position: relative;
}

.toggle-password {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-light);
  transition: var(--transition-fast);
}

.toggle-password:hover {
  color: var(--accent-color);
}

.error-message {
  color: var(--danger-color);
  background-color: rgba(239, 68, 68, 0.1);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-lg);
  font-size: 0.875rem;
  border-left: 3px solid var(--danger-color);
}

/* Animation pour secouer le message d'erreur */
@keyframes shake {
  0%, 100% {transform: translateX(0);}
  10%, 30%, 50%, 70%, 90% {transform: translateX(-5px);}
  20%, 40%, 60%, 80% {transform: translateX(5px);}
}

.shake {
  animation: shake 0.5s;
}

/* ======== SCANNER ======== */
#scanner-viewport {
  width: 100%;
  height: 300px;
  background-color: #000;
  border-radius: var(--border-radius);
  overflow: hidden;
  position: relative;
}

.scanner-controls {
  margin-top: var(--spacing-md);
  text-align: center;
}

.scanner-hint {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-light);
  margin-top: var(--spacing-sm);
  font-style: italic;
}

/* ======== FOOTER ======== */
footer {
  background-color: var(--footer-bg-color);
  color: var(--text-inverse);
  text-align: center;
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-xl);
}

/* ======== UTILITIES ======== */
.hidden {
  display: none !important;
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

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

/* ======== RESPONSIVE ======== */
@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
  
  .option-cards {
    flex-direction: column;
  }
  
  .option-card {
    flex: 1 1 auto;
  }
  
  .session-header {
    flex-direction: column;
  }
  
  .form-action {
    flex-direction: column;
  }
  
  .form-container, .login-form {
    padding: var(--spacing-lg);
  }
}

@media (max-width: 576px) {
  html {
    font-size: 14px;
  }
  
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .card, .section, .data-section, .manual-entry, .session-info {
    padding: var(--spacing-md);
  }
  
  .data-controls {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .buttons {
    width: 100%;
  }
  
  .buttons .btn {
    flex: 1;
  }
  
  .modal-content {
    width: 95%;
    margin: var(--spacing-md);
  }
  
  .form-group input, .form-group select {
    padding: 0.625rem 0.875rem;
  }
  
  .btn {
    padding: 0.5rem 1rem;
  }
  
  h1 {
    font-size: 1.5rem;
  }
  
  h2 {
    font-size: 1.25rem;
  }
  
  table th, table td {
    padding: 0.625rem 0.75rem;
  }
  
  .radio-group {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
}

/* ======== ANIMATIONS ======== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeIn 0.5s ease-out forwards;
}

/* ======== MODIFICATIONS FOR SCANNER ======== */
#serial-input[readonly] {
  background-color: rgba(67, 97, 238, 0.05);
  cursor: pointer;
  border: 2px dashed var(--accent-color);
}

#serial-input[readonly]:focus {
  background-color: rgba(67, 97, 238, 0.1);
  border-color: var(--accent-light);
}

/* Make modals visible when style.display is set to 'block' */
.modal[style*="display: block"] {
  opacity: 1;
  visibility: visible;
}