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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #8a8780 25%, #383734 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    animation: slideIn 0.8s ease-out;
}
@keyframes slideIn {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}


.header {
    background:  rgba(202, 200, 200, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    text-align: center;    
}


.nav-links {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.nav-links a {
    background: linear-gradient(45deg, #E47267 25%);
    color: rgb(255, 255, 255);
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.nav-links a:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

h1 {
    color: #2c3e50;
    font-size: 2.5em;
    margin-bottom: 10px;
    background: linear-gradient(45deg, #E47267, #cea074 );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: #030707;
    font-size: 1.2em;
    font-weight: 300;
}

.content {
    background: rgba(202, 200, 200, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

h2 {
    color: #2c3e50;
    font-size: 1.8em;
    margin: 30px 0 20px 0;
    padding-bottom: 10px;
    border-bottom: 3px solid #b85a51;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 50px;
    height: 3px;
    background: #E47267;
}

.objectives-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 30px;
    margin: 20px 0;
}

.objective-card {
    background: linear-gradient(135deg, #8a8780);
    color: white;
    padding: 25px;
    border-radius: 15px;
    
}

.objective-card h3 {
    margin-bottom: 15px;
    font-size: 1.3em;
}

.specific-objectives {
    background: linear-gradient(135deg, #d7d8c5);
    color: white;
    padding: 25px;
    border-radius: 15px;    
}

.specific-objectives h3 {
    margin-bottom: 15px;
    font-size: 1.3em;
}

.specific-objectives ul {
    list-style: none;
    padding-left: 0;
}

.specific-objectives li {
    margin: 10px 0;
    padding-left: 25px;
    position: relative;
}

.specific-objectives li::before {
    content: '⚡';
    position: absolute;
    left: 0;
    color: #ffd700;
}

.theory-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 20px 0;
}

.gate-card {
    background: linear-gradient(135deg, #d7d8c5 0%, #8a8780 100%);
    padding: 25px;
    border-radius: 15px;    
    transition: transform 0.3s ease;
}

.gate-card:hover {
    transform: translateY(-5px);
}

.gate-card h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.3em;
}

.images-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 30px 0;
}

.image-card {
    background: #8a8780;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.image-card img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.material-item {
    background: linear-gradient(45deg, #E47267, #cea074 );
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    color: #ffffff;
    box-shadow: 0 5px 15px rgba(252, 182, 159, 0.3);
}

.procedure-steps {
    counter-reset: step-counter;
}

.procedure-step {
    background: linear-gradient(135deg,#fef9d7 0%,  #e47267 100%);
    margin: 15px 0;
    padding: 20px;
    border-radius: 15px;
    counter-increment: step-counter;
    position: relative;
    padding-left: 70px;
    box-shadow: 0 5px 15px rgba(210, 153, 194, 0.3);
}

.procedure-step::before {
    content: counter(step-counter);
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    background:  #e47267;
    color: white;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.results-table th {
    background: linear-gradient(135deg, #8a8780 0%, #615f5a 100%);
    color: white;
    padding: 15px;
    text-align: center;
    font-weight: 600;
}

.results-table td {
    padding: 12px 15px;
    text-align: center;
    border-bottom: 1px solid #ecf0f1;
}

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

.results-table tr:hover {
    background: #e3f2fd;
}

.simulation-container {
    background: #8a8780;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin: 30px 0;
    text-align: center;
}

.simulation-container h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 1.4em;
}

iframe {
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    max-width: 100%;
}

.analysis-questions {
    background: linear-gradient(135deg, #fee140 0%, #fa709a 100%);
    color: white;
    padding: 25px;
    border-radius: 15px;
    margin: 20px 0;
    
}

.analysis-questions ul {
    list-style: none;
    padding-left: 0;
}

.analysis-questions li {
    margin: 15px 0;
    padding-left: 25px;
    position: relative;
    font-weight: 500;
}

.analysis-questions li::before {
    content: '';
    position: absolute;
    left: 0;
}

.conclusions-list {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(161, 196, 253, 0.3);
    margin: 20px 0;
}

.conclusions-list ul {
    list-style: none;
    padding-left: 0;
}

.conclusions-list li {
    margin: 15px 0;
    padding-left: 25px;
    position: relative;
    color: #ffffff;
    font-weight: 500;
}

.conclusions-list li::before {
    content: '*';
    position: absolute;
    left: 0;
}

.annexes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.annex-item {
    background: linear-gradient(  #e47267);
    color: white;
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(251, 211, 233, 0.3);
    transition: transform 0.3s ease;
}

.annex-item:hover {
    transform: translateY(-3px);
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .objectives-grid,
    .theory-section,
    .images-container {
        grid-template-columns: 1fr;
    }

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

    h1 {
        font-size: 2em;
    }

    .nav-links {
        flex-direction: column;
        align-items: center;
    }

    iframe {
        width: 100%;
        height: 300px;
    }
}

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

.content {
    animation: fadeInUp 0.6s ease-out;
}