/**
 * ملف التصميم الرئيسي
 * Main Stylesheet
 * محطة الراية الحمراء للخدمات البترولية
 */

/* ========== إعدادات عامة ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #dc3545;
  --primary-dark: #c82333;
  --primary-light: #f8d7da;
  --secondary-color: #6c757d;
  --success-color: #28a745;
  --danger-color: #dc3545;
  --warning-color: #ffc107;
  --info-color: #17a2b8;
  --light-color: #f8f9fa;
  --dark-color: #343a40;
  --white: #ffffff;
  --border-color: #dee2e6;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.15);
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  direction: rtl;
  text-align: right;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  min-height: 100vh;
  color: var(--dark-color);
  line-height: 1.6;
}

/* ========== Container ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.container-fluid {
  width: 100%;
  padding: 20px;
}

/* ========== Header ========== */
.header {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--primary-dark) 100%
  );
  color: var(--white);
  padding: 20px 0;
  box-shadow: var(--shadow-lg);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo-icon {
  width: 50px;
  height: 50px;
  background: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.logo h1 {
  font-size: 24px;
  font-weight: bold;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 20px;
}

.user-name {
  font-size: 16px;
}

/* ========== Navigation ========== */
.nav {
  background: var(--white);
  box-shadow: var(--shadow);
  margin-bottom: 30px;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 10px;
  padding: 0;
  margin: 0;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 15px 25px;
  color: var(--dark-color);
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
  border-bottom: 3px solid transparent;
}

.nav-link:hover,
.nav-link.active {
  background: var(--primary-light);
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

/* ========== Cards ========== */
.card {
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 25px;
  margin-bottom: 20px;
  transition: var(--transition);
}

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

.card-header {
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 15px;
  margin-bottom: 20px;
}

.card-title {
  font-size: 20px;
  font-weight: bold;
  color: var(--primary-color);
  margin: 0;
}

.card-body {
  padding: 0;
}

/* ========== Forms ========== */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--dark-color);
}

.form-control {
  width: 100%;
  padding: 12px 15px;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 16px;
  transition: var(--transition);
  direction: rtl;
  text-align: right;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-control:disabled {
  background: var(--light-color);
  cursor: not-allowed;
}

.form-select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: left 12px center;
  background-size: 16px 12px;
  padding-left: 40px;
}

/* ========== Buttons ========== */
.btn {
  display: inline-block;
  padding: 12px 30px;
  border: none;
  border-radius: var(--border-radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  text-align: center;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

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

.btn-success:hover:not(:disabled) {
  background: #218838;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-secondary {
  background: var(--secondary-color);
  color: var(--white);
}

.btn-secondary:hover:not(:disabled) {
  background: #5a6268;
}

.btn-danger {
  background: var(--danger-color);
  color: var(--white);
}

.btn-danger:hover:not(:disabled) {
  background: #c82333;
}

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

/* ========== Tables ========== */
.table-responsive {
  overflow-x: auto;
  margin-bottom: 20px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.table thead {
  background: var(--primary-color);
  color: var(--white);
}

.table th,
.table td {
  padding: 15px;
  text-align: right;
  border-bottom: 1px solid var(--border-color);
}

.table tbody tr:hover {
  background: var(--light-color);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

.table-striped tbody tr:nth-child(even) {
  background: #f8f9fa;
}

/* ========== Alerts ========== */
.alert {
  padding: 15px 20px;
  border-radius: var(--border-radius);
  margin-bottom: 20px;
  border-right: 5px solid;
}

.alert-success {
  background: #d4edda;
  color: #155724;
  border-color: var(--success-color);
}

.alert-danger {
  background: #f8d7da;
  color: #721c24;
  border-color: var(--danger-color);
}

.alert-warning {
  background: #fff3cd;
  color: #856404;
  border-color: var(--warning-color);
}

.alert-info {
  background: #d1ecf1;
  color: #0c5460;
  border-color: var(--info-color);
}

/* ========== Grid System ========== */
.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -10px;
}

.col {
  flex: 1;
  padding: 0 10px;
}

.col-1 {
  flex: 0 0 8.333%;
  max-width: 8.333%;
}
.col-2 {
  flex: 0 0 16.666%;
  max-width: 16.666%;
}
.col-3 {
  flex: 0 0 25%;
  max-width: 25%;
}
.col-4 {
  flex: 0 0 33.333%;
  max-width: 33.333%;
}
.col-5 {
  flex: 0 0 41.666%;
  max-width: 41.666%;
}
.col-6 {
  flex: 0 0 50%;
  max-width: 50%;
}
.col-7 {
  flex: 0 0 58.333%;
  max-width: 58.333%;
}
.col-8 {
  flex: 0 0 66.666%;
  max-width: 66.666%;
}
.col-9 {
  flex: 0 0 75%;
  max-width: 75%;
}
.col-10 {
  flex: 0 0 83.333%;
  max-width: 83.333%;
}
.col-11 {
  flex: 0 0 91.666%;
  max-width: 91.666%;
}
.col-12 {
  flex: 0 0 100%;
  max-width: 100%;
}

/* ========== Dashboard Stats ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.stat-card {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--primary-dark) 100%
  );
  color: var(--white);
  padding: 25px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.stat-card.success {
  background: linear-gradient(135deg, var(--success-color) 0%, #218838 100%);
}

.stat-card.info {
  background: linear-gradient(135deg, var(--info-color) 0%, #138496 100%);
}

.stat-card.warning {
  background: linear-gradient(135deg, var(--warning-color) 0%, #e0a800 100%);
}

.stat-icon {
  font-size: 40px;
  margin-bottom: 10px;
}

.stat-value {
  font-size: 32px;
  font-weight: bold;
  margin-bottom: 5px;
}

.stat-label {
  font-size: 16px;
  opacity: 0.9;
}

/* ========== Login Page ========== */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

.login-card {
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  padding: 40px;
  width: 100%;
  max-width: 450px;
}

.login-header {
  text-align: center;
  margin-bottom: 30px;
}

.login-logo {
  width: 80px;
  height: 80px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 40px;
  color: var(--white);
}

.login-title {
  font-size: 24px;
  color: var(--primary-color);
  margin-bottom: 10px;
}

/* ========== Readings Form ========== */
.readings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.pump-card {
  background: var(--white);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 20px;
  transition: var(--transition);
}

.pump-card:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow);
}

.pump-header {
  background: var(--primary-color);
  color: var(--white);
  padding: 10px 15px;
  border-radius: var(--border-radius);
  margin-bottom: 15px;
  font-weight: bold;
}

.calculation-result {
  background: var(--light-color);
  padding: 15px;
  border-radius: var(--border-radius);
  margin-top: 15px;
  border-right: 4px solid var(--success-color);
}

.result-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.result-label {
  font-weight: 600;
}

.result-value {
  color: var(--primary-color);
  font-weight: bold;
}

/* ========== Loading Spinner ========== */
.spinner {
  border: 4px solid var(--light-color);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 20px auto;
}

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

/* ========== Utilities ========== */
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}

.mt-1 {
  margin-top: 10px;
}
.mt-2 {
  margin-top: 20px;
}
.mt-3 {
  margin-top: 30px;
}
.mb-1 {
  margin-bottom: 10px;
}
.mb-2 {
  margin-bottom: 20px;
}
.mb-3 {
  margin-bottom: 30px;
}

.p-1 {
  padding: 10px;
}
.p-2 {
  padding: 20px;
}
.p-3 {
  padding: 30px;
}

.text-primary {
  color: var(--primary-color);
}
.text-success {
  color: var(--success-color);
}
.text-danger {
  color: var(--danger-color);
}
.text-warning {
  color: var(--warning-color);
}

.bg-primary {
  background: var(--primary-color);
}
.bg-success {
  background: var(--success-color);
}
.bg-danger {
  background: var(--danger-color);
}
.bg-light {
  background: var(--light-color);
}

.d-none {
  display: none;
}
.d-block {
  display: block;
}
.d-flex {
  display: flex;
}

.justify-between {
  justify-content: space-between;
}
.align-center {
  align-items: center;
}
.gap-1 {
  gap: 10px;
}
.gap-2 {
  gap: 20px;
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 15px;
  }

  .nav-list {
    flex-direction: column;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .readings-grid {
    grid-template-columns: 1fr;
  }

  .row {
    flex-direction: column;
  }

  .col-1,
  .col-2,
  .col-3,
  .col-4,
  .col-5,
  .col-6,
  .col-7,
  .col-8,
  .col-9,
  .col-10,
  .col-11,
  .col-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

/* ========== Print Styles ========== */
@media print {
  .header,
  .nav,
  .btn,
  .no-print {
    display: none !important;
  }

  body {
    background: white;
  }

  .card {
    box-shadow: none;
    border: 1px solid #000;
  }
}