/* Installation guide styles - Modern 2025 Design */
.installation-guide {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    border-radius: 32px;
    padding: 48px;
    max-width: 1080px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 32px 64px rgba(0, 0, 0, 0.15);
}

.guide-header {
    text-align: center;
    margin-bottom: 56px;
    position: relative;
}

.guide-header::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: #4a5568;
    border-radius: 2px;
}

.guide-header h1 {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 24px;
    color: #e2e8f0;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.guide-header .subtitle {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
    font-weight: 500;
    letter-spacing: 0.01em;
    line-height: 1.4;
}

/* Overview section - Modern glassmorphism */
.overview-section {
    background: rgba(74, 85, 104, 0.15);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: white;
    padding: 40px;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.1);
}

.overview-section h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

/* Process steps - Modern card design */
.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin: 40px 0;
}

@media (max-width: 1080px) {
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .process-steps {
        grid-template-columns: 1fr;
    }
}

.process-step {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(12px);
    padding: 32px 24px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.process-step-number {
    background: #4a5568;
    color: white;
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-weight: 700;
    font-size: 1.4rem;
    box-shadow: 0 8px 24px rgba(74, 85, 104, 0.3);
}

.process-step h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: rgba(255, 255, 255, 0.95);
}

.process-step p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
}

/* Time info - Modern pill design */
.time-info {
    display: flex;
    justify-content: center;
    margin-top: 40px;
    flex-wrap: wrap;
    gap: 16px;
}

.time-item {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
    padding: 16px 28px;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    font-size: 0.95rem;
    font-weight: 500;
}

/* Guide sections - Modern card layout */
.guide-section {
    margin-bottom: 48px;
    padding: 40px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
}



.guide-section h2 {
    color: rgba(255, 255, 255, 0.95);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    letter-spacing: -0.01em;
}

.guide-section h3 {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.5rem;
    font-weight: 600;
    margin: 32px 0 16px 0;
    letter-spacing: -0.005em;
}

.guide-section h4 {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.2rem;
    font-weight: 600;
    margin: 24px 0 12px 0;
}

.guide-section h4 strong {
    color: #667eea;
    text-decoration: none;
    padding-bottom: 2px;
}

.guide-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 16px;
}

/* Checklists */
.checklist {
    list-style: none;
    margin: 20px 0;
}

.checklist li {
    padding: 12px 0;
    position: relative;
    font-size: 1.1rem;
}

/* Info boxes */
.info-box {
    border: 1px solid #b3d9ff;
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
    border-right: 4px solid #667eea;
}

.prod-ai {
    margin: 20px auto;
    inline-size: fit-content;
    background: #00254c;
    border: none;
}

.info-box h4 {
    color: #667eea;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

/* Warning boxes */
.warning-box {
    border: 1px solid #ffeaa7;
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
    border-right: 4px solid #fdcb6e;
}

/* Security notes */
.security-note {
    border: 1px solid #c3e6cb;
    border-radius: 10px;
    padding: 15px;
    margin: 15px 0;
    border-right: 4px solid #28a745;
}

/* Cost info */
.cost-info {
    background: #2f5291;
    padding: 25px;
    border-radius: 15px;
    margin: 20px 0;
    text-align: center;
}

.set-it {
    border: solid 1px;
    border-radius: 10px;
    inline-size: fit-content;
    padding: 10px 20px;
    margin: auto;
    background: #2f5291;
}

/* Benefits grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.benefit-item {
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid #e0e6ff;
}

.benefit-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

/* Contact section */
.contact-section {
    background: #13147b;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    margin-top: 50px;
}

.contact-section h2 {
    margin-bottom: 30px;
    font-size: 2rem;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.contact-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-item p {
    margin-top: 10px;
    font-size: 16px;
}

/* Numbered steps */
.numbered-steps-wrapper {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

.numbered-steps {
    counter-reset: step-counter;
    text-align: right;
}

.numbered-steps a {
    font-size: 18px;
}

.numbered-steps li {
    counter-increment: step-counter;
}

/* Contact form styles */
.contact-form {
    max-width: 450px;
    margin: 40px auto;
    padding: 20px;
    font-family: Arial, sans-serif;
}

.contact-form h2 {
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    text-align: right;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    box-sizing: border-box;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007cba;
}

.form-group textarea {
    height: 60px;
    resize: vertical;
}

.submit-btn {
    background-color: #007cba;
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 5px;
    font-size: 18px;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.3s ease;
}

.submit-btn:hover:not(:disabled) {
    background-color: #005a87;
}

.submit-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.message {
    padding: 15px;
    margin: 20px 0;
    border-radius: 5px;
    display: none;
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    font-style: oblique;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.loading {
    display: none;
    text-align: center;
    padding: 10px;
    color: #666;
}

.required {
    color: #e74c3c;
}

.phone-hint {
    font-size: 14px;
    color: #666;
    margin-top: 5px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

/* Responsive design */
@media (max-width: 768px) {

    .installation-guide {
        padding: 20px;
        border: none;
    }

    .guide-header h1 {
        font-size: 2rem;
    }

    .guide-header .subtitle {
        font-size: 1.1rem;
    }

    .time-info {
        flex-direction: column;
        text-align: center;
    }

    .mobile-set {
        display: none;
    }

    .numbered-steps {
        width: 90%;
        margin-right: 15px;
    }

    h1 {
        font-size: 2.5rem;
    }

    img {
        max-width: 35%;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    img {
        max-width: 25%;
    }

    footer {
        padding: 1rem 0;
    }
}