:root {
    --color-light-gray: #E1E8ED;
    --color-very-light: #F5F7FA;
    --color-accent: #ffd166;
    --color-dark-navy: #0B1B2B;
    --color-medium-blue: #2D4D7F;
    --color-purple: #7B44AB;
    --font-primary: 'Inter', sans-serif;
    /* --font-display: 'Orbitron', monospace; */

}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    background: var(--color-very-light);
    color: var(--color-dark-navy);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navigation  khaled */

.header {
    
    /* border-bottom: 1px solid black; */
    /* margin-bottom: 0; */



}

.header-container {
  box-shadow: 0 4px 6px rgba(0,0,0,0.1); 
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0;
  /* padding: 5px 5px; */

  /* position: fixed; */
    top: 0;
    width: 100%;
    z-index: 999;
        background-color: #eeeeee;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0;
}


.header-container li {
   margin: 0 15px;
    padding:5px ;

}

.header-container a {
  text-decoration: none;
  color: black;
  font-weight: 500;
}
.header-container li:not(.search ):not(.logo ):not(.profile-pic):hover {
  background: #f1d38a;
  border-radius: 4px;   
}
.header-container li.logo:hover,
.header-container li.search:hover {
  background: none;
  border-radius: 0;
}
.input-header-container {
  width: 450px;
  padding: 13px 50px;
  border-radius: 20px;
  border: 1px solid gray;
  outline: none;
  color: gray;
}
.input-header-container:focus {
  border-color: black;
}

/* Navigation */
/* .navbar {
    background: rgba(121, 141, 161, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--color-accent);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar-brand-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.navbar-logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
    border: 2px solid var(--color-accent);
}

.navbar-brand {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--color-accent) !important;
    font-size: 1.5rem;
    text-decoration: none;
    margin: 0;
}

.navbar-subtitle {
    color: var(--color-light-gray);
    font-size: 0.9rem;
    font-weight: 300;
    margin-left: -0.5rem;
}

.btn-help {
    background: transparent;
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-help:hover {
    background: var(--color-accent);
    color: var(--color-dark-navy);
    transform: translateY(-2px);
} */

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--color-dark-navy) 0%, var(--color-medium-blue) 100%);
    padding: 140px 0 80px;
    color: white;
    position: relative;
    overflow: hidden;
    margin-top: 0;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
   background: url('https://images.pexels.com/photos/41951/solar-system-emergence-spitzer-telescope-telescope-41951.jpeg?auto=compress&cs=tinysrgb&w=1200&h=800&dpr=1') center/cover; 
  /*  background: url('https://assets.science.nasa.gov/dynamicimage/assets/science/missions/hubble/nebulae/emission/Hubble_LMC_N44C_potw2536a.jpg?w=2831&h=1735&fit=clip&crop=faces%2Cfocalpoint') center/cover;*/

    opacity: .2;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
}


.hero-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: linear-gradient(45deg, var(--color-accent), white);
    /* background: linear-gradient(45deg, #2d4d7f , white); */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--color-light-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.mission-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    display: block;
}

.stat-label {
    color: var(--color-light-gray);
    font-size: 0.9rem;
    font-weight: 500;
}


.orbit-visualization {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 400px;
}

.orbit-container {
    position: relative;
    width: 300px;
    height: 300px;
}

.earth-sphere {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: radial-gradient(circle at 30% 30%, #4a9eff, #1e3a8a);
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(136, 190, 251, 0.5);
    animation: earthRotate 50s linear infinite;
}

@keyframes earthRotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.orbit-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    border: 1px dashed rgba(255, 209, 102, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.orbit-1 {
    width: 140px;
    height: 140px;
}

.orbit-2 {
    width: 200px;
    height: 200px;
}

.orbit-3 {
    width: 260px;
    height: 260px;
}

.satellite {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-accent);
}

.sat-1 {
    top: 50%;
    left: 50%;
    animation: orbit1 8s linear infinite;
}

.sat-2 {
    top: 50%;
    left: 50%;
    animation: orbit2 12s linear infinite;
}

.sat-3 {
    top: 50%;
    left: 50%;
    animation: orbit3 16s linear infinite;
}

@keyframes orbit1 {
    from { transform: translate(-50%, -50%) rotate(0deg) translateX(70px) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg) translateX(70px) rotate(-360deg); }
}

@keyframes orbit2 {
    from { transform: translate(-50%, -50%) rotate(0deg) translateX(100px) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(-360deg) translateX(100px) rotate(360deg); }
}

@keyframes orbit3 {
    from { transform: translate(-50%, -50%) rotate(0deg) translateX(130px) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg) translateX(130px) rotate(-360deg); }
}

/* Sections */
.section {
    padding: 100px 0;
    position: relative;
}

.location-section {
    background: var(--color-very-light);
}

.satellite-section {
    background: white;
}

.earth-section {
    background: var(--color-very-light);
}

.weather-section {
    background: white;
}

.section-content {
    /* padding: 2rem; */
}

.section-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.section-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.7;
}

.section-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-dark-navy);
    margin: 0;
}

.section-description {
    font-size: 1.1rem;
    color: var(--color-medium-blue);
    line-height: 1.8;
    margin-bottom: 2rem;
}

/* Feature Showcase */
.feature-showcase {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    /* height: 400px; */
    height: 90vh;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.showcase-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.feature-showcase:hover .showcase-image {
    transform: scale(1.05);
}

.showcase-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(11, 27, 43, 0.9));
    color: white;
    padding: 2rem;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.feature-showcase:hover .showcase-overlay {
    transform: translateY(0);
}

.showcase-overlay h4 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-accent);
}

/* Control Panels */
.control-panel {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--color-light-gray);
}

.control-panel h5 {
    font-family: var(--font-display);
    color: var(--color-dark-navy);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.control-panel h6 {
    font-family: var(--font-display);
    color: var(--color-medium-blue);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

/* Buttons */
.btn-primary-custom {
    background: var(--color-medium-blue);
    border: none;
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary-custom:hover {
    background: var(--color-purple);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(45, 77, 127, 0.3);
}

.btn-secondary-custom {
    background: transparent;
    border: 2px solid var(--color-medium-blue);
    color: var(--color-medium-blue);
    padding: 0.8rem 2rem;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-secondary-custom:hover {
    background: var(--color-medium-blue);
    color: white;
    transform: translateY(-2px);
}

/* Form Inputs */
.form-control {
    border: 2px solid var(--color-light-gray);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    background: white;
    color: var(--color-dark-navy);
    font-weight: 500;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 0.2rem rgba(255, 209, 102, 0.25);
    outline: none;
}

.input-group-text {
    background: var(--color-medium-blue);
    color: white;
    border: none;
    font-weight: 600;
    font-family: var(--font-display);
}

/* Status Indicators */
.status-indicator {
    background: var(--color-very-light);
    border-left: 4px solid var(--color-accent);
    padding: 1rem;
    border-radius: 0 8px 8px 0;
    font-weight: 500;
    color: var(--color-medium-blue);
}

/* Satellite List */
.part2{

    padding-top: 3%;
}
.part3{

    padding-top: 10%;
}
.satellite-list {
    max-height: 300px;
    overflow-y: auto;
}


.satellite-item {
    background: var(--color-very-light);
    border: none;
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 0.5rem;
    text-align: left;
    transition: all 0.3s ease;
    cursor: pointer;
    width: 100%;
    color: var(--color-dark-navy);
}

.satellite-item:hover {
    background: var(--color-accent);
    color: var(--color-dark-navy);
    transform: translateX(10px);
}

.satellite-name {
    font-weight: 600;
    font-size: 1rem;
}

.satellite-id {
    color: var(--color-medium-blue);
    font-size: 0.9rem;
}

/* Info Grids */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: .3rem;
    margin-top: 1rem;
}

.info-item {
    background: var(--color-very-light);
    padding: 1rem;
    padding-left: .2rem;
    padding-right: .2rem;
    border-radius: 8px;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.info-item:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.info-label {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--color-medium-blue);
    display: block;
    margin-bottom: 0.5rem;
}

.info-value {
    color: var(--color-dark-navy);
    font-weight: 600;
}

/* Parameter Grid */
.parameter-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.parameter-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--color-very-light);
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
}

.param-icon {
    font-size: 1.2rem;
}

/* Map Container */
.map-container {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.map-header {
    background: var(--color-dark-navy);
    color: white;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.map-header h4 {
    font-family: var(--font-display);
    margin: 0;
    color: var(--color-accent);
}

.map-controls {
    display: flex;
    gap: 0.5rem;
}

.map-controls input {
    width: 200px;
}

.mission-map {
    padding-top: 0%;
    height: 592px;
    width: 100%;
}

/* Earth Image Container */
.image-container {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    min-height: 200px;
    background: var(--color-very-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.earth-image {
    width: 100%;
    height: auto;
    border-radius: 10px;
}

.image-info {
    background: var(--color-medium-blue);
    color: white;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    text-align: center;
    margin-top: 1rem;
    border-radius: 20px;
}

/* Weather Display */
.weather-display {
    background: var(--color-very-light);
    padding: 1.5rem;
    border-radius: 10px;
    border: 2px solid var(--color-light-gray);
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.weather-loading {
    color: var(--color-medium-blue);
    font-weight: 500;
    text-align: center;
}

.weather-data {
    text-align: left;
}

.weather-location {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--color-dark-navy);
    margin-bottom: 0.5rem;
}

.weather-condition {
    color: var(--color-medium-blue);
    margin-bottom: 1rem;
    text-transform: capitalize;
}

.weather-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    font-size: 0.9rem;
}

.weather-detail {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.weather-label {
    color: var(--color-medium-blue);
    font-weight: 500;
}

.weather-value {
    color: var(--color-dark-navy);
    font-weight: 600;
}

/* Facts List */
.facts-list {
    list-style: none;
    padding: 0;
}

.facts-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-light-gray);
    color: var(--color-medium-blue);
    font-size: 0.9rem;
}

.facts-list li:last-child {
    border-bottom: none;
}

.facts-list li::before {
    content: "▸";
    color: var(--color-accent);
    font-weight: bold;
    margin-right: 0.5rem;
}

/* Footer Section */
.footer-section {
    background: var(--color-dark-navy);
    color: white;
    padding: 60px 0 40px;
}

.footer-section h3 {
    font-family: var(--font-display);
    color: var(--color-accent);
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.resource-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 209, 102, 0.2);
    transition: all 0.3s ease;
}

.resource-item:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    box-shadow: 0 20px 40px rgba(255, 209, 102, 0.1);
}

.resource-item h5 {
    font-family: var(--font-display);
    color: var(--color-accent);
    margin-bottom: 1rem;
    font-weight: 600;
}

.resource-item p {
    color: var(--color-light-gray);
    line-height: 1.6;
}

.footer-brand {
    text-align: center;
    border-top: 1px solid rgba(255, 209, 102, 0.3);
    padding-top: 2rem;
    margin-top: 2rem;
}

.footer-brand span:first-child {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    display: block;
}

.footer-tagline {
    color: var(--color-light-gray);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    display: block;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .mission-stats {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-number {
        font-size: 2rem;
    }
    
    .orbit-visualization {
        height: 300px;
    }
    
    .orbit-container {
        width: 200px;
        height: 200px;
    }
    
    .map-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .map-controls {
        width: 100%;
    }
    
    .map-controls input {
        flex: 1;
    }
    
    .resource-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid,
    .parameter-grid {
        grid-template-columns: 1fr;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-very-light);
}

::-webkit-scrollbar-thumb {
    background: var(--color-medium-blue);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-purple);
}

/* Loading States */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 209, 102, 0.3), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    from { left: -100%; }
    to { left: 100%; }
}